From 1b9a50d931a04ba007cc1a926fead3ff4b5afa9b Mon Sep 17 00:00:00 2001 From: maximilian attems Date: Thu, 13 Jan 2011 15:34:20 +0100 Subject: [PATCH 001/277] deb-pkg: Use $SRCARCH for include path Fix x86 centric path to allow building kernel-header packages for other architecture. Signed-off-by: maximilian attems Signed-off-by: Michal Marek --- scripts/package/builddeb | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scripts/package/builddeb b/scripts/package/builddeb index b0b2357aef42..ebc6d6e9d778 100644 --- a/scripts/package/builddeb +++ b/scripts/package/builddeb @@ -239,7 +239,7 @@ fi # Build header package find . -name Makefile -o -name Kconfig\* -o -name \*.pl > /tmp/files$$ -find arch/x86/include include scripts -type f >> /tmp/files$$ +find arch/$SRCARCH/include include scripts -type f >> /tmp/files$$ (cd $objtree; find .config Module.symvers include scripts -type f >> /tmp/objfiles$$) destdir=$kernel_headers_dir/usr/src/linux-headers-$version mkdir -p "$destdir" From 490da40d82b31c0562d3f5edb37810f492ca1c34 Mon Sep 17 00:00:00 2001 From: Tao Ma Date: Wed, 19 Jan 2011 10:51:44 +0800 Subject: [PATCH 002/277] blktrace: Don't output messages if NOTIFY isn't set. Now if we enable blktrace, cfq has too many messages output to the trace buffer. It is fine if we don't specify any action mask. But if I do like this: blktrace /dev/sdb -a issue -a complete -o - | blkparse -i - I only want to see 'D' and 'C', while with the following command dd if=/mnt/ocfs2/test of=/dev/null bs=4k count=1 iflag=direct I will get(with a 2.6.37 vanilla kernel): 8,16 0 0 0.000000000 0 m N cfq3805 alloced 8,16 0 0 0.000004126 0 m N cfq3805 insert_request 8,16 0 0 0.000004884 0 m N cfq3805 add_to_rr 8,16 0 0 0.000008417 0 m N cfq workload slice:300 8,16 0 0 0.000009557 0 m N cfq3805 set_active wl_prio:0 wl_type:2 8,16 0 0 0.000010640 0 m N cfq3805 fifo= (null) 8,16 0 0 0.000011193 0 m N cfq3805 dispatch_insert 8,16 0 0 0.000012221 0 m N cfq3805 dispatched a request 8,16 0 0 0.000012802 0 m N cfq3805 activate rq, drv=1 8,16 0 1 0.000013181 3805 D R 114759 + 8 [dd] 8,16 0 2 0.000164244 0 C R 114759 + 8 [0] 8,16 0 0 0.000167997 0 m N cfq3805 complete rqnoidle 0 8,16 0 0 0.000168782 0 m N cfq3805 set_slice=100 8,16 0 0 0.000169874 0 m N cfq3805 arm_idle: 8 group_idle: 0 8,16 0 0 0.000170189 0 m N cfq schedule dispatch 8,16 0 0 0.000397938 0 m N cfq3805 slice expired t=0 8,16 0 0 0.000399763 0 m N cfq3805 sl_used=1 disp=1 charge=1 iops=0 sect=8 8,16 0 0 0.000400227 0 m N cfq3805 del_from_rr 8,16 0 0 0.000400882 0 m N cfq3805 put_queue See, there are 19 lines while I only need 2. I don't think it is appropriate for a user. So this patch will disable any messages if the BLK_TC_NOTIFY isn't set. Now the output for the same command will look like: 8,16 0 1 0.000000000 4908 D R 114759 + 8 [dd] 8,16 0 2 0.000146827 0 C R 114759 + 8 [0] Yes, it is what I want to see. Cc: Steven Rostedt Cc: Jeff Moyer Signed-off-by: Tao Ma Signed-off-by: Jens Axboe --- kernel/trace/blktrace.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c index 153562d0b93c..d95721f33702 100644 --- a/kernel/trace/blktrace.c +++ b/kernel/trace/blktrace.c @@ -138,6 +138,13 @@ void __trace_note_message(struct blk_trace *bt, const char *fmt, ...) !blk_tracer_enabled)) return; + /* + * If the BLK_TC_NOTIFY action mask isn't set, don't send any note + * message to the trace. + */ + if (!(bt->act_mask & BLK_TC_NOTIFY)) + return; + local_irq_save(flags); buf = per_cpu_ptr(bt->msg_data, smp_processor_id()); va_start(args, fmt); From 04de96c9c6981c5957aa5db39bbdc4d958d07efa Mon Sep 17 00:00:00 2001 From: Tracey Dent Date: Wed, 19 Jan 2011 08:25:02 -0700 Subject: [PATCH 003/277] drivers/block/Makefile: replace the use of -objs with -y Change Makefile to use -y instead of -objs because -objs is deprecated and should now be switched. According to (documentation/kbuild/makefiles.txt). Signed-off-by: Tracey Dent Signed-off-by: Andrew Morton Signed-off-by: Jens Axboe --- drivers/block/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/Makefile b/drivers/block/Makefile index d7f463d6312d..40528ba56d1b 100644 --- a/drivers/block/Makefile +++ b/drivers/block/Makefile @@ -39,4 +39,4 @@ obj-$(CONFIG_XEN_BLKDEV_FRONTEND) += xen-blkfront.o obj-$(CONFIG_BLK_DEV_DRBD) += drbd/ obj-$(CONFIG_BLK_DEV_RBD) += rbd.o -swim_mod-objs := swim.o swim_asm.o +swim_mod-y := swim.o swim_asm.o From ee71a968672a9951aee6014c55511007596425bc Mon Sep 17 00:00:00 2001 From: Sergey Senozhatsky Date: Wed, 19 Jan 2011 08:25:02 -0700 Subject: [PATCH 004/277] loop: queue_lock NULL pointer derefence in blk_throtl_exit Performing $ sudo mount -o loop -o umask=0 /dev/sdb1 /mnt/ mount: wrong fs type, bad option, bad superblock on /dev/loop0, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so $ sudo modprobe -r loop results in oops: BUG: unable to handle kernel NULL pointer dereference at 0000000000000004 IP: [] do_raw_spin_lock+0x14/0x122 Process modprobe (pid: 6189, threadinfo ffff88009a898000, task ffff880154a88000) Call Trace: [] _raw_spin_lock_irq+0x4a/0x51 [] ? blk_throtl_exit+0x3b/0xa0 [] ? cancel_delayed_work_sync+0xd/0xf [] blk_throtl_exit+0x3b/0xa0 [] blk_release_queue+0x21/0x65 [] kobject_release+0x51/0x66 [] ? kobject_release+0x0/0x66 [] kref_put+0x43/0x4d [] kobject_put+0x47/0x4b [] blk_cleanup_queue+0x56/0x5b [] loop_exit+0x68/0x844 [loop] [] sys_delete_module+0x1e8/0x25b [] ? trace_hardirqs_on_thunk+0x3a/0x3f [] system_call_fastpath+0x16/0x1b because of an attempt to acquire NULL queue_lock. I added the same lines as in blk_queue_make_request - index 44e18c0..49e6a54 100644`fall back to embedded per-queue lock'. Signed-off-by: Sergey Senozhatsky Signed-off-by: Andrew Morton Signed-off-by: Jens Axboe --- drivers/block/loop.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 44e18c073c44..49e6a545eb63 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -1641,6 +1641,9 @@ out: static void loop_free(struct loop_device *lo) { + if (!lo->lo_queue->queue_lock) + lo->lo_queue->queue_lock = &lo->lo_queue->__queue_lock; + blk_cleanup_queue(lo->lo_queue); put_disk(lo->lo_disk); list_del(&lo->lo_list); From a0700bdd0b0150ea445159b1dee587f1507c272f Mon Sep 17 00:00:00 2001 From: Tracey Dent Date: Wed, 19 Jan 2011 08:25:02 -0700 Subject: [PATCH 005/277] drivers/block/aoe/Makefile: replace the use of -objs with -y Change Makefile to use -y instead of -objs because -objs is deprecated and should now be switched. According to (documentation/kbuild/makefiles.txt). Signed-off-by: Tracey Dent Cc: "Ed L. Cashin" Signed-off-by: Andrew Morton Signed-off-by: Jens Axboe --- drivers/block/aoe/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/aoe/Makefile b/drivers/block/aoe/Makefile index e76d997183c6..06ea82cdf27d 100644 --- a/drivers/block/aoe/Makefile +++ b/drivers/block/aoe/Makefile @@ -3,4 +3,4 @@ # obj-$(CONFIG_ATA_OVER_ETH) += aoe.o -aoe-objs := aoeblk.o aoechr.o aoecmd.o aoedev.o aoemain.o aoenet.o +aoe-y := aoeblk.o aoechr.o aoecmd.o aoedev.o aoemain.o aoenet.o From 68264e9d6781f7163e92c517769bb470fa43f6cd Mon Sep 17 00:00:00 2001 From: "Stephen M. Cameron" Date: Wed, 19 Jan 2011 08:25:02 -0700 Subject: [PATCH 006/277] cciss: make cciss_revalidate not loop through CISS_MAX_LUNS volumes unnecessarily. Signed-off-by: Stephen M. Cameron Signed-off-by: Andrew Morton Signed-off-by: Jens Axboe --- drivers/block/cciss.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 516d5bbec2b6..9279272b3732 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -2833,7 +2833,7 @@ static int cciss_revalidate(struct gendisk *disk) sector_t total_size; InquiryData_struct *inq_buff = NULL; - for (logvol = 0; logvol < CISS_MAX_LUN; logvol++) { + for (logvol = 0; logvol <= h->highest_lun; logvol++) { if (!h->drv[logvol]) continue; if (memcmp(h->drv[logvol]->LunID, drv->LunID, From ba5bd520f679c450fb6efa439618703bd0956daa Mon Sep 17 00:00:00 2001 From: Vivek Goyal Date: Wed, 19 Jan 2011 08:25:02 -0700 Subject: [PATCH 007/277] cfq: rename a function to give it more appropriate name o Rename a function to give it more approprate name. We are calculating cfq queue slice and function name gives the impression as if cfq group slice length is being calculated. Signed-off-by: Vivek Goyal Signed-off-by: Jens Axboe --- block/cfq-iosched.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 501ffdf0399c..ace168657136 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -599,7 +599,7 @@ cfq_group_slice(struct cfq_data *cfqd, struct cfq_group *cfqg) } static inline unsigned -cfq_scaled_group_slice(struct cfq_data *cfqd, struct cfq_queue *cfqq) +cfq_scaled_cfqq_slice(struct cfq_data *cfqd, struct cfq_queue *cfqq) { unsigned slice = cfq_prio_to_slice(cfqd, cfqq); if (cfqd->cfq_latency) { @@ -631,7 +631,7 @@ cfq_scaled_group_slice(struct cfq_data *cfqd, struct cfq_queue *cfqq) static inline void cfq_set_prio_slice(struct cfq_data *cfqd, struct cfq_queue *cfqq) { - unsigned slice = cfq_scaled_group_slice(cfqd, cfqq); + unsigned slice = cfq_scaled_cfqq_slice(cfqd, cfqq); cfqq->slice_start = jiffies; cfqq->slice_end = jiffies + slice; @@ -1671,7 +1671,7 @@ __cfq_slice_expired(struct cfq_data *cfqd, struct cfq_queue *cfqq, */ if (timed_out) { if (cfq_cfqq_slice_new(cfqq)) - cfqq->slice_resid = cfq_scaled_group_slice(cfqd, cfqq); + cfqq->slice_resid = cfq_scaled_cfqq_slice(cfqd, cfqq); else cfqq->slice_resid = cfqq->slice_end - jiffies; cfq_log_cfqq(cfqd, cfqq, "resid=%ld", cfqq->slice_resid); From be2c6b1990904dbd43f3d9b90fa2c530504375cd Mon Sep 17 00:00:00 2001 From: Vivek Goyal Date: Wed, 19 Jan 2011 08:25:02 -0700 Subject: [PATCH 008/277] blkio-throttle: Avoid calling blkiocg_lookup_group() for root group o Jeff Moyer was doing some testing on a RAM backed disk and blkiocg_lookup_group() showed up high overhead after memcpy(). Similarly somebody else reported that blkiocg_lookup_group() is eating 6% extra cpu. Though looking at the code I can't think why the overhead of this function is so high. One thing is that it is called with very high frequency (once for every IO). o For lot of folks blkio controller will be compiled in but they might not have actually created cgroups. Hence optimize the case of root cgroup where we can avoid calling blkiocg_lookup_group() if IO is happening in root group (common case). Reported-by: Jeff Moyer Signed-off-by: Vivek Goyal Acked-by: Jeff Moyer Signed-off-by: Jens Axboe --- block/blk-throttle.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/block/blk-throttle.c b/block/blk-throttle.c index 381b09bb562b..a89043a3caa4 100644 --- a/block/blk-throttle.c +++ b/block/blk-throttle.c @@ -168,7 +168,15 @@ static struct throtl_grp * throtl_find_alloc_tg(struct throtl_data *td, * tree of blkg (instead of traversing through hash list all * the time. */ - tg = tg_of_blkg(blkiocg_lookup_group(blkcg, key)); + + /* + * This is the common case when there are no blkio cgroups. + * Avoid lookup in this case + */ + if (blkcg == &blkio_root_cgroup) + tg = &td->root_tg; + else + tg = tg_of_blkg(blkiocg_lookup_group(blkcg, key)); /* Fill in device details for root group */ if (tg && !tg->blkg.dev && bdi->dev && dev_name(bdi->dev)) { From 8a6afb9a950de01457a4267bcbe3292e56412326 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 21 Jan 2011 16:56:47 +0100 Subject: [PATCH 009/277] spi/spi_sh_msiof: fix wrong address calculation, which leads to an Oops NULL + != NULL, but reading from that address is usually not a very good idea and often leads to problems, like kernel Oopses in this case, easily reproducible by writing to an SD-card, used in SPI mode. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Grant Likely --- drivers/spi/spi_sh_msiof.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/spi/spi_sh_msiof.c b/drivers/spi/spi_sh_msiof.c index 56f60c8ea0ab..2c665fceaac7 100644 --- a/drivers/spi/spi_sh_msiof.c +++ b/drivers/spi/spi_sh_msiof.c @@ -509,9 +509,11 @@ static int sh_msiof_spi_txrx(struct spi_device *spi, struct spi_transfer *t) bytes_done = 0; while (bytes_done < t->len) { + void *rx_buf = t->rx_buf ? t->rx_buf + bytes_done : NULL; + const void *tx_buf = t->tx_buf ? t->tx_buf + bytes_done : NULL; n = sh_msiof_spi_txrx_once(p, tx_fifo, rx_fifo, - t->tx_buf + bytes_done, - t->rx_buf + bytes_done, + tx_buf, + rx_buf, words, bits); if (n < 0) break; From 1ea1bdf7faa4d0b5293e605f2e1ef1c2c59f6b53 Mon Sep 17 00:00:00 2001 From: Ari Kauppi Date: Thu, 20 Jan 2011 13:57:18 -0500 Subject: [PATCH 010/277] oprofile: Fix usage of CONFIG_HW_PERF_EVENTS for oprofile_perf_init and friends The implementations are flagged in Makefile with CONFIG_HW_PERF_EVENTS instead of CONFIG_PERF_EVENTS. Cc: stable@kernel.org # 37.x Signed-off-by: Ari Kauppi Signed-off-by: Robert Richter --- include/linux/oprofile.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/oprofile.h b/include/linux/oprofile.h index 32fb81212fd1..54c83827f913 100644 --- a/include/linux/oprofile.h +++ b/include/linux/oprofile.h @@ -186,10 +186,10 @@ int oprofile_add_data(struct op_entry *entry, unsigned long val); int oprofile_add_data64(struct op_entry *entry, u64 val); int oprofile_write_commit(struct op_entry *entry); -#ifdef CONFIG_PERF_EVENTS +#ifdef CONFIG_HW_PERF_EVENTS int __init oprofile_perf_init(struct oprofile_operations *ops); void oprofile_perf_exit(void); char *op_name_from_perf_id(void); -#endif /* CONFIG_PERF_EVENTS */ +#endif /* CONFIG_HW_PERF_EVENTS */ #endif /* OPROFILE_H */ From d14dd7e20d5e526557f5d3cfef4046a642f80924 Mon Sep 17 00:00:00 2001 From: Ari Kauppi Date: Thu, 20 Jan 2011 13:57:19 -0500 Subject: [PATCH 011/277] ARM: oprofile: Fix backtraces in timer mode Always allow backtraces when using oprofile on ARM, even if a PMU isn't present. Restores functionality originally introduced in commit 1b7b56982fdcd9d85effd76f3928cf5d6eb26155 ("oprofile: Always allow backtraces on ARM") by Richard Purdie. It is not that obvious, but there is now only one oprofile_arch_init() function. So the .backtrace callback is available also in timer mode. Implemented by removing code and using stubs for oprofile_perf_{init, exit} provided by . This allows cleaning of other architecture specific implementations too. Cc: stable@kernel.org # 37.x Signed-off-by: Ari Kauppi Acked-by: Will Deacon Signed-off-by: Robert Richter --- arch/arm/oprofile/common.c | 12 ++---------- include/linux/oprofile.h | 9 +++++++++ 2 files changed, 11 insertions(+), 10 deletions(-) diff --git a/arch/arm/oprofile/common.c b/arch/arm/oprofile/common.c index 8aa974491dfc..2b663918c464 100644 --- a/arch/arm/oprofile/common.c +++ b/arch/arm/oprofile/common.c @@ -10,8 +10,6 @@ */ #include -#include -#include #include #include #include @@ -46,6 +44,7 @@ char *op_name_from_perf_id(void) return NULL; } } +#endif static int report_trace(struct stackframe *frame, void *d) { @@ -111,6 +110,7 @@ static void arm_backtrace(struct pt_regs * const regs, unsigned int depth) int __init oprofile_arch_init(struct oprofile_operations *ops) { + /* provide backtrace support also in timer mode: */ ops->backtrace = arm_backtrace; return oprofile_perf_init(ops); @@ -120,11 +120,3 @@ void __exit oprofile_arch_exit(void) { oprofile_perf_exit(); } -#else -int __init oprofile_arch_init(struct oprofile_operations *ops) -{ - pr_info("oprofile: hardware counters not available\n"); - return -ENODEV; -} -void __exit oprofile_arch_exit(void) {} -#endif /* CONFIG_HW_PERF_EVENTS */ diff --git a/include/linux/oprofile.h b/include/linux/oprofile.h index 54c83827f913..1ca64113efe8 100644 --- a/include/linux/oprofile.h +++ b/include/linux/oprofile.h @@ -16,6 +16,8 @@ #include #include #include +#include +#include #include /* Each escaped entry is prefixed by ESCAPE_CODE @@ -190,6 +192,13 @@ int oprofile_write_commit(struct op_entry *entry); int __init oprofile_perf_init(struct oprofile_operations *ops); void oprofile_perf_exit(void); char *op_name_from_perf_id(void); +#else +static inline int __init oprofile_perf_init(struct oprofile_operations *ops) +{ + pr_info("oprofile: hardware counters not available\n"); + return -ENODEV; +} +static inline void oprofile_perf_exit(void) { } #endif /* CONFIG_HW_PERF_EVENTS */ #endif /* OPROFILE_H */ From 6866fd3b7289a283741752b73e0e09f410b7639d Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Wed, 12 Jan 2011 11:18:14 +0100 Subject: [PATCH 012/277] dmaengine i.MX SDMA: Fix firmware loading When loading the microcode to the SDMA engine we have to use the ram_code_start_addr found in the firmware image. The copy in the sdma engine is not initialized correctly. This is broken since: 5b28aa3 dmaengine i.MX SDMA: Allow to run without firmware Signed-off-by: Sascha Hauer Signed-off-by: Dan Williams --- drivers/dma/imx-sdma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index d5a5d4d9c19b..75df8b937413 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -1135,7 +1135,7 @@ static int __init sdma_get_firmware(struct sdma_engine *sdma, /* download the RAM image for SDMA */ sdma_load_script(sdma, ram_code, header->ram_code_size, - sdma->script_addrs->ram_code_start_addr); + addr->ram_code_start_addr); clk_disable(sdma->clk); sdma_add_scripts(sdma, addr); From 939fd4f077269dd863cd630a3b3195a20acf7d02 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Wed, 19 Jan 2011 19:13:06 +0800 Subject: [PATCH 013/277] dmaengine: imx-sdma: propagate error in sdma_probe() instead of returning 0 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Shawn Guo Acked-by: Uwe Kleine-König Signed-off-by: Dan Williams --- drivers/dma/imx-sdma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 75df8b937413..1dbaf61eea2d 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -1348,7 +1348,7 @@ err_clk: err_request_region: err_irq: kfree(sdma); - return 0; + return ret; } static int __exit sdma_remove(struct platform_device *pdev) From d718f4ebddcb0bebdbf771a6672756b666e5c31b Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Mon, 17 Jan 2011 22:39:24 +0800 Subject: [PATCH 014/277] dmaengine: imx-sdma: fix inconsistent naming in sdma_assign_cookie() Variable name sdma and sdmac are consistently used as the pointer to sdma_engine and sdma_channel respectively throughout the file. The patch fixes the inconsistency seen in function sdma_assign_cookie(). Signed-off-by: Shawn Guo Signed-off-by: Dan Williams --- drivers/dma/imx-sdma.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 1dbaf61eea2d..e89fd1033df9 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -770,15 +770,15 @@ static void sdma_enable_channel(struct sdma_engine *sdma, int channel) __raw_writel(1 << channel, sdma->regs + SDMA_H_START); } -static dma_cookie_t sdma_assign_cookie(struct sdma_channel *sdma) +static dma_cookie_t sdma_assign_cookie(struct sdma_channel *sdmac) { - dma_cookie_t cookie = sdma->chan.cookie; + dma_cookie_t cookie = sdmac->chan.cookie; if (++cookie < 0) cookie = 1; - sdma->chan.cookie = cookie; - sdma->desc.cookie = cookie; + sdmac->chan.cookie = cookie; + sdmac->desc.cookie = cookie; return cookie; } From de171cb9a52598cc023adceafc6c166112401386 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 31 Jan 2011 11:57:42 +1100 Subject: [PATCH 015/277] md: revert change to raid_disks on failure. If we try to update_raid_disks and it fails, we should put 'delta_disks' back to zero. This is important because some code, such as slot_store, assumes that delta_disks has been validated. Signed-off-by: NeilBrown --- drivers/md/md.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/md/md.c b/drivers/md/md.c index b76cfc89e1b5..e636e404e9a5 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5578,6 +5578,8 @@ static int update_raid_disks(mddev_t *mddev, int raid_disks) mddev->delta_disks = raid_disks - mddev->raid_disks; rv = mddev->pers->check_reshape(mddev); + if (rv < 0) + mddev->delta_disks = 0; return rv; } From 87a8dec91e15954f0cf86be6c21741d991d83621 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 31 Jan 2011 11:57:43 +1100 Subject: [PATCH 016/277] md: simplify some 'if' conditionals in raid5_start_reshape. There are two consecutive 'if' statements. if (mddev->delta_disks >= 0) .... if (mddev->delta_disks > 0) The code in the second is equally valid if delta_disks == 0, and these two statements are the only place that 'added_devices' is used. So make them a single if statement, make added_devices a local variable, and re-indent it all. No functional change. Signed-off-by: NeilBrown --- drivers/md/raid5.c | 55 +++++++++++++++++++++++----------------------- 1 file changed, 28 insertions(+), 27 deletions(-) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 5044babfcda0..fa5519389a17 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -5517,7 +5517,6 @@ static int raid5_start_reshape(mddev_t *mddev) raid5_conf_t *conf = mddev->private; mdk_rdev_t *rdev; int spares = 0; - int added_devices = 0; unsigned long flags; if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery)) @@ -5571,34 +5570,36 @@ static int raid5_start_reshape(mddev_t *mddev) * to correctly record the "partially reconstructed" state of * such devices during the reshape and confusion could result. */ - if (mddev->delta_disks >= 0) - list_for_each_entry(rdev, &mddev->disks, same_set) - if (rdev->raid_disk < 0 && - !test_bit(Faulty, &rdev->flags)) { - if (raid5_add_disk(mddev, rdev) == 0) { - char nm[20]; - if (rdev->raid_disk >= conf->previous_raid_disks) { - set_bit(In_sync, &rdev->flags); - added_devices++; + if (mddev->delta_disks >= 0) { + int added_devices = 0; + list_for_each_entry(rdev, &mddev->disks, same_set) + if (rdev->raid_disk < 0 && + !test_bit(Faulty, &rdev->flags)) { + if (raid5_add_disk(mddev, rdev) == 0) { + char nm[20]; + if (rdev->raid_disk + >= conf->previous_raid_disks) { + set_bit(In_sync, &rdev->flags); + added_devices++; + } else + rdev->recovery_offset = 0; + sprintf(nm, "rd%d", rdev->raid_disk); + if (sysfs_create_link(&mddev->kobj, + &rdev->kobj, nm)) + /* Failure here is OK */; } else - rdev->recovery_offset = 0; - sprintf(nm, "rd%d", rdev->raid_disk); - if (sysfs_create_link(&mddev->kobj, - &rdev->kobj, nm)) - /* Failure here is OK */; - } else - break; - } else if (rdev->raid_disk >= conf->previous_raid_disks - && !test_bit(Faulty, &rdev->flags)) { - /* This is a spare that was manually added */ - set_bit(In_sync, &rdev->flags); - added_devices++; - } + break; + } else if (rdev->raid_disk >= conf->previous_raid_disks + && !test_bit(Faulty, &rdev->flags)) { + /* This is a spare that was manually added */ + set_bit(In_sync, &rdev->flags); + added_devices++; + } - /* When a reshape changes the number of devices, ->degraded - * is measured against the larger of the pre and post number of - * devices.*/ - if (mddev->delta_disks > 0) { + /* When a reshape changes the number of devices, + * ->degraded is measured against the larger of the + * pre and post number of devices. + */ spin_lock_irqsave(&conf->device_lock, flags); mddev->degraded += (conf->raid_disks - conf->previous_raid_disks) - added_devices; From 469518a3455c79619e9231aeffeffa2e2989f738 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 31 Jan 2011 11:57:43 +1100 Subject: [PATCH 017/277] md: fix the test for finding spares in raid5_start_reshape. As spares can be added to the array before the reshape is started, we need to find and count them when checking there are enough. The array could have been degraded, so we need to check all devices, no just those out side of the range of devices in the array before the reshape. So instead of checking the index, check the In_sync flag as that reliably tells if the device is a spare or this purpose. Signed-off-by: NeilBrown --- drivers/md/raid5.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index fa5519389a17..a6d2c3ddeee4 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -5526,8 +5526,8 @@ static int raid5_start_reshape(mddev_t *mddev) return -ENOSPC; list_for_each_entry(rdev, &mddev->disks, same_set) - if ((rdev->raid_disk < 0 || rdev->raid_disk >= conf->raid_disks) - && !test_bit(Faulty, &rdev->flags)) + if (!test_bit(In_sync, &rdev->flags) + && !test_bit(Faulty, &rdev->flags)) spares++; if (spares - mddev->degraded < mddev->delta_disks - conf->max_degraded) From 50da08409654e036c4c964a473567a61a654cb83 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 31 Jan 2011 11:57:43 +1100 Subject: [PATCH 018/277] md: don't abort checking spares as soon as one cannot be added. As spares can be added manually before a reshape starts, we need to find them all to mark some of them as in_sync. Previously we would abort looking for spares when we found an unallocated spare what could not be added to the array (implying there was no room for new spares). However already-added spares could be later in the list, so we need to keep searching. Signed-off-by: NeilBrown --- drivers/md/raid5.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index a6d2c3ddeee4..702812824195 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -5587,8 +5587,7 @@ static int raid5_start_reshape(mddev_t *mddev) if (sysfs_create_link(&mddev->kobj, &rdev->kobj, nm)) /* Failure here is OK */; - } else - break; + } } else if (rdev->raid_disk >= conf->previous_raid_disks && !test_bit(Faulty, &rdev->flags)) { /* This is a spare that was manually added */ From f21e9ff7f77d41ceca4e1e5ee5a4efa5ad7a5e40 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 31 Jan 2011 12:10:09 +1100 Subject: [PATCH 019/277] md: Remove the AllReserved flag for component devices. This flag is not needed and is used badly. Devices that are included in a native-metadata array are reserved exclusively for that array - and currently have AllReserved set. They all are bd_claimed for the rdev and so cannot be shared. Devices that are included in external-metadata arrays can be shared among multiple arrays - providing there is no overlap. These are bd_claimed for md in general - not for a particular rdev. When changing the amount of a device that is used in an array we need to check for overlap. This currently includes a check on AllReserved So even without overlap, sharing with an AllReserved device is not allowed. However the bd_claim usage already precludes sharing with these devices, so the test on AllReserved is not needed. And in fact it is wrong. As this is the only use of AllReserved, simply remove all usage and definition of AllReserved. Signed-off-by: NeilBrown --- drivers/md/md.c | 13 +++++-------- drivers/md/md.h | 2 -- 2 files changed, 5 insertions(+), 10 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index e636e404e9a5..f539b587ca72 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1947,8 +1947,6 @@ static int lock_rdev(mdk_rdev_t *rdev, dev_t dev, int shared) __bdevname(dev, b)); return PTR_ERR(bdev); } - if (!shared) - set_bit(AllReserved, &rdev->flags); rdev->bdev = bdev; return err; } @@ -2610,12 +2608,11 @@ rdev_size_store(mdk_rdev_t *rdev, const char *buf, size_t len) mddev_lock(mddev); list_for_each_entry(rdev2, &mddev->disks, same_set) - if (test_bit(AllReserved, &rdev2->flags) || - (rdev->bdev == rdev2->bdev && - rdev != rdev2 && - overlaps(rdev->data_offset, rdev->sectors, - rdev2->data_offset, - rdev2->sectors))) { + if (rdev->bdev == rdev2->bdev && + rdev != rdev2 && + overlaps(rdev->data_offset, rdev->sectors, + rdev2->data_offset, + rdev2->sectors)) { overlap = 1; break; } diff --git a/drivers/md/md.h b/drivers/md/md.h index eec517ced31a..7e90b8593b2a 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -93,8 +93,6 @@ struct mdk_rdev_s #define Faulty 1 /* device is known to have a fault */ #define In_sync 2 /* device is in_sync with rest of array */ #define WriteMostly 4 /* Avoid reading if at all possible */ -#define AllReserved 6 /* If whole device is reserved for - * one array */ #define AutoDetected 7 /* added by auto-detect */ #define Blocked 8 /* An error occured on an externally * managed array, don't allow writes From fc3a08b85b7a4f6c1069e5f71f6ad40d925ff55b Mon Sep 17 00:00:00 2001 From: Krzysztof Wojcik Date: Mon, 31 Jan 2011 13:47:13 +1100 Subject: [PATCH 020/277] Add raid1->raid0 takeover support This patch introduces raid 1 to raid0 takeover operation in kernel space. Signed-off-by: Krzysztof Wojcik Signed-off-by: Neil Brown --- drivers/md/raid0.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index a39f4c355e55..637a96855edb 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -179,6 +179,14 @@ static int create_strip_zones(mddev_t *mddev, raid0_conf_t **private_conf) rdev1->new_raid_disk = j; } + if (mddev->level == 1) { + /* taiking over a raid1 array- + * we have only one active disk + */ + j = 0; + rdev1->new_raid_disk = j; + } + if (j < 0 || j >= mddev->raid_disks) { printk(KERN_ERR "md/raid0:%s: bad disk number %d - " "aborting!\n", mdname(mddev), j); @@ -644,12 +652,38 @@ static void *raid0_takeover_raid10(mddev_t *mddev) return priv_conf; } +static void *raid0_takeover_raid1(mddev_t *mddev) +{ + raid0_conf_t *priv_conf; + + /* Check layout: + * - (N - 1) mirror drives must be already faulty + */ + if ((mddev->raid_disks - 1) != mddev->degraded) { + printk(KERN_ERR "md/raid0:%s: (N - 1) mirrors drives must be already faulty!\n", + mdname(mddev)); + return ERR_PTR(-EINVAL); + } + + /* Set new parameters */ + mddev->new_level = 0; + mddev->new_layout = 0; + mddev->new_chunk_sectors = 128; /* by default set chunk size to 64k */ + mddev->delta_disks = 1 - mddev->raid_disks; + /* make sure it will be not marked as dirty */ + mddev->recovery_cp = MaxSector; + + create_strip_zones(mddev, &priv_conf); + return priv_conf; +} + static void *raid0_takeover(mddev_t *mddev) { /* raid0 can take over: * raid4 - if all data disks are active. * raid5 - providing it is Raid4 layout and one disk is faulty * raid10 - assuming we have all necessary active disks + * raid1 - with (N -1) mirror drives faulty */ if (mddev->level == 4) return raid0_takeover_raid45(mddev); @@ -665,6 +699,12 @@ static void *raid0_takeover(mddev_t *mddev) if (mddev->level == 10) return raid0_takeover_raid10(mddev); + if (mddev->level == 1) + return raid0_takeover_raid1(mddev); + + printk(KERN_ERR "Takeover from raid%i to raid0 not supported\n", + mddev->level); + return ERR_PTR(-EINVAL); } From a8c42c7f476b5bb39bb3a5b32d5473b9a46cadb9 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 31 Jan 2011 13:47:13 +1100 Subject: [PATCH 021/277] md: Don't use remove_and_add_spares to remove failed devices from a read-only array remove_and_add_spares is called in two places where the needs really are very different. remove_and_add_spares should not be called on an array which is about to be reshaped as some extra devices might have been manually added and that would remove them. However if the array is 'read-auto', that will currently happen, which is bad. So in the 'ro != 0' case don't call remove_and_add_spares but simply remove the failed devices as the comment suggests is needed. Signed-off-by: NeilBrown --- drivers/md/md.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index f539b587ca72..5b93829f3d49 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -7027,7 +7027,7 @@ static int remove_and_add_spares(mddev_t *mddev) } } - if (mddev->degraded && ! mddev->ro && !mddev->recovery_disabled) { + if (mddev->degraded && !mddev->recovery_disabled) { list_for_each_entry(rdev, &mddev->disks, same_set) { if (rdev->raid_disk >= 0 && !test_bit(In_sync, &rdev->flags) && @@ -7150,7 +7150,20 @@ void md_check_recovery(mddev_t *mddev) /* Only thing we do on a ro array is remove * failed devices. */ - remove_and_add_spares(mddev); + mdk_rdev_t *rdev; + list_for_each_entry(rdev, &mddev->disks, same_set) + if (rdev->raid_disk >= 0 && + !test_bit(Blocked, &rdev->flags) && + test_bit(Faulty, &rdev->flags) && + atomic_read(&rdev->nr_pending)==0) { + if (mddev->pers->hot_remove_disk( + mddev, rdev->raid_disk)==0) { + char nm[20]; + sprintf(nm,"rd%d", rdev->raid_disk); + sysfs_remove_link(&mddev->kobj, nm); + rdev->raid_disk = -1; + } + } clear_bit(MD_RECOVERY_NEEDED, &mddev->recovery); goto unlock; } From 7281f8129c362436237b82c8c026494dd36479dc Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 31 Jan 2011 14:30:27 +1100 Subject: [PATCH 022/277] md: don't clear curr_resync_completed at end of resync. There is no need to set this to zero at this point. It will be set to zero by remove_and_add_spares or at the start of md_do_sync at the latest. And setting it to zero before MD_RECOVERY_RUNNING is cleared can make a 'zero' appear briefly in the 'sync_completed' sysfs attribute just as resync is finishing. So simply remove this setting to zero. Signed-off-by: NeilBrown --- drivers/md/md.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index 5b93829f3d49..f2d5628d51cb 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -6984,9 +6984,6 @@ void md_do_sync(mddev_t *mddev) } else if (test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) mddev->resync_min = mddev->curr_resync_completed; mddev->curr_resync = 0; - if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery)) - mddev->curr_resync_completed = 0; - sysfs_notify(&mddev->kobj, NULL, "sync_completed"); wake_up(&resync_wait); set_bit(MD_RECOVERY_DONE, &mddev->recovery); md_wakeup_thread(mddev->thread); From fb526210b2b961b5d590b89fd8f45c0ca5769688 Mon Sep 17 00:00:00 2001 From: Russell King - ARM Linux Date: Thu, 27 Jan 2011 12:32:53 +0000 Subject: [PATCH 023/277] DMA: PL08x: fix infinite wait when terminating transfers If we try to pause a channel when terminating a transfer, we could end up spinning for it to become inactive indefinitely, and can result in an uninterruptible wait requiring a reset to recover from. Terminating a transfer is supposed to take effect immediately, but may result in data loss. To make this clear, rename the function to pl08x_terminate_phy_chan(). Also, make sure it is always consistently called - with the spinlock held and IRQs disabled, and ensure that the TC and ERR interrupt status is always cleared. Signed-off-by: Russell King Acked-by: Linus Walleij Signed-off-by: Dan Williams --- drivers/dma/amba-pl08x.c | 32 ++++++++++++++++++-------------- 1 file changed, 18 insertions(+), 14 deletions(-) diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index 297f48b0cba9..8321a3997c95 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -267,19 +267,24 @@ static void pl08x_resume_phy_chan(struct pl08x_phy_chan *ch) } -/* Stops the channel */ -static void pl08x_stop_phy_chan(struct pl08x_phy_chan *ch) +/* + * pl08x_terminate_phy_chan() stops the channel, clears the FIFO and + * clears any pending interrupt status. This should not be used for + * an on-going transfer, but as a method of shutting down a channel + * (eg, when it's no longer used) or terminating a transfer. + */ +static void pl08x_terminate_phy_chan(struct pl08x_driver_data *pl08x, + struct pl08x_phy_chan *ch) { - u32 val; + u32 val = readl(ch->base + PL080_CH_CONFIG); - pl08x_pause_phy_chan(ch); + val &= ~(PL080_CONFIG_ENABLE | PL080_CONFIG_ERR_IRQ_MASK | + PL080_CONFIG_TC_IRQ_MASK); - /* Disable channel */ - val = readl(ch->base + PL080_CH_CONFIG); - val &= ~PL080_CONFIG_ENABLE; - val &= ~PL080_CONFIG_ERR_IRQ_MASK; - val &= ~PL080_CONFIG_TC_IRQ_MASK; writel(val, ch->base + PL080_CH_CONFIG); + + writel(1 << ch->id, pl08x->base + PL080_ERR_CLEAR); + writel(1 << ch->id, pl08x->base + PL080_TC_CLEAR); } static inline u32 get_bytes_in_cctl(u32 cctl) @@ -404,13 +409,12 @@ static inline void pl08x_put_phy_channel(struct pl08x_driver_data *pl08x, { unsigned long flags; + spin_lock_irqsave(&ch->lock, flags); + /* Stop the channel and clear its interrupts */ - pl08x_stop_phy_chan(ch); - writel((1 << ch->id), pl08x->base + PL080_ERR_CLEAR); - writel((1 << ch->id), pl08x->base + PL080_TC_CLEAR); + pl08x_terminate_phy_chan(pl08x, ch); /* Mark it as free */ - spin_lock_irqsave(&ch->lock, flags); ch->serving = NULL; spin_unlock_irqrestore(&ch->lock, flags); } @@ -1449,7 +1453,7 @@ static int pl08x_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, plchan->state = PL08X_CHAN_IDLE; if (plchan->phychan) { - pl08x_stop_phy_chan(plchan->phychan); + pl08x_terminate_phy_chan(pl08x, plchan->phychan); /* * Mark physical channel as free and free any slave From 8179661694595eb3a4f2ff9bb0b73acbb7d2f4a9 Mon Sep 17 00:00:00 2001 From: Russell King - ARM Linux Date: Thu, 27 Jan 2011 12:37:44 +0000 Subject: [PATCH 024/277] DMA: PL08x: fix channel pausing to timeout rather than lockup If a transfer is initiated from memory to a peripheral, then data is fetched and the channel is marked busy. This busy status persists until the HALT bit is set and the queued data has been transfered to the peripheral. Waiting indefinitely after setting the HALT bit results in system lockups. Timeout this operation, and print an error when this happens. Signed-off-by: Russell King Acked-by: Linus Walleij Signed-off-by: Dan Williams --- drivers/dma/amba-pl08x.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index 8321a3997c95..07bca4970e50 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -79,6 +79,7 @@ #include #include #include +#include #include #include #include @@ -235,16 +236,19 @@ static void pl08x_start_txd(struct pl08x_dma_chan *plchan, } /* - * Overall DMAC remains enabled always. + * Pause the channel by setting the HALT bit. * - * Disabling individual channels could lose data. + * For M->P transfers, pause the DMAC first and then stop the peripheral - + * the FIFO can only drain if the peripheral is still requesting data. + * (note: this can still timeout if the DMAC FIFO never drains of data.) * - * Disable the peripheral DMA after disabling the DMAC in order to allow - * the DMAC FIFO to drain, and hence allow the channel to show inactive + * For P->M transfers, disable the peripheral first to stop it filling + * the DMAC FIFO, and then pause the DMAC. */ static void pl08x_pause_phy_chan(struct pl08x_phy_chan *ch) { u32 val; + int timeout; /* Set the HALT bit and wait for the FIFO to drain */ val = readl(ch->base + PL080_CH_CONFIG); @@ -252,8 +256,13 @@ static void pl08x_pause_phy_chan(struct pl08x_phy_chan *ch) writel(val, ch->base + PL080_CH_CONFIG); /* Wait for channel inactive */ - while (pl08x_phy_channel_busy(ch)) - cpu_relax(); + for (timeout = 1000; timeout; timeout--) { + if (!pl08x_phy_channel_busy(ch)) + break; + udelay(1); + } + if (pl08x_phy_channel_busy(ch)) + pr_err("pl08x: channel%u timeout waiting for pause\n", ch->id); } static void pl08x_resume_phy_chan(struct pl08x_phy_chan *ch) From d524dac9279b6a41ffdf7ff7958c577f2e387db6 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Wed, 26 Jan 2011 10:10:40 -0700 Subject: [PATCH 025/277] dt: Move device tree documentation out of powerpc directory The device tree is used by more than just PowerPC. Make the documentation directory available to all. v2: reorganized files while moving to create arch and driver specific directories. Signed-off-by: Grant Likely Acked-by: Josh Boyer --- .../fsl/sata.txt => devicetree/bindings/ata/fsl-sata.txt} | 0 .../{powerpc/dts-bindings => devicetree/bindings}/eeprom.txt | 0 .../dts-bindings/fsl => devicetree/bindings/gpio}/8xxx_gpio.txt | 0 .../{powerpc/dts-bindings => devicetree/bindings}/gpio/gpio.txt | 0 .../{powerpc/dts-bindings => devicetree/bindings}/gpio/led.txt | 0 .../fsl/i2c.txt => devicetree/bindings/i2c/fsl-i2c.txt} | 0 .../{powerpc/dts-bindings => devicetree/bindings}/marvell.txt | 0 .../fsl/esdhc.txt => devicetree/bindings/mmc/fsl-esdhc.txt} | 0 .../dts-bindings => devicetree/bindings/mmc}/mmc-spi-slot.txt | 0 .../fsl/upm-nand.txt => devicetree/bindings/mtd/fsl-upm-nand.txt} | 0 .../dts-bindings => devicetree/bindings/mtd}/mtd-physmap.txt | 0 .../fsl/can.txt => devicetree/bindings/net/can/mpc5xxx-mscan.txt} | 0 .../dts-bindings => devicetree/bindings/net}/can/sja1000.txt | 0 .../fsl/tsec.txt => devicetree/bindings/net/fsl-tsec-phy.txt} | 0 .../gpio/mdio.txt => devicetree/bindings/net/mdio-gpio.txt} | 0 .../{powerpc/dts-bindings => devicetree/bindings/net}/phy.txt | 0 .../fsl => devicetree/bindings/pci}/83xx-512x-pci.txt | 0 .../dts-bindings => devicetree/bindings/powerpc}/4xx/cpm.txt | 0 .../dts-bindings => devicetree/bindings/powerpc}/4xx/emac.txt | 0 .../dts-bindings => devicetree/bindings/powerpc}/4xx/ndfc.txt | 0 .../bindings/powerpc}/4xx/ppc440spe-adma.txt | 0 .../dts-bindings => devicetree/bindings/powerpc}/4xx/reboot.txt | 0 .../dts-bindings => devicetree/bindings/powerpc}/fsl/board.txt | 0 .../bindings/powerpc}/fsl/cpm_qe/cpm.txt | 0 .../bindings/powerpc}/fsl/cpm_qe/cpm/brg.txt | 0 .../bindings/powerpc}/fsl/cpm_qe/cpm/i2c.txt | 0 .../bindings/powerpc}/fsl/cpm_qe/cpm/pic.txt | 0 .../bindings/powerpc}/fsl/cpm_qe/cpm/usb.txt | 0 .../bindings/powerpc}/fsl/cpm_qe/gpio.txt | 0 .../bindings/powerpc}/fsl/cpm_qe/network.txt | 0 .../bindings/powerpc}/fsl/cpm_qe/qe.txt | 0 .../bindings/powerpc}/fsl/cpm_qe/qe/firmware.txt | 0 .../bindings/powerpc}/fsl/cpm_qe/qe/par_io.txt | 0 .../bindings/powerpc}/fsl/cpm_qe/qe/pincfg.txt | 0 .../bindings/powerpc}/fsl/cpm_qe/qe/ucc.txt | 0 .../bindings/powerpc}/fsl/cpm_qe/qe/usb.txt | 0 .../bindings/powerpc}/fsl/cpm_qe/serial.txt | 0 .../dts-bindings => devicetree/bindings/powerpc}/fsl/diu.txt | 0 .../dts-bindings => devicetree/bindings/powerpc}/fsl/dma.txt | 0 .../dts-bindings => devicetree/bindings/powerpc/fsl}/ecm.txt | 0 .../dts-bindings => devicetree/bindings/powerpc}/fsl/gtm.txt | 0 .../dts-bindings => devicetree/bindings/powerpc}/fsl/guts.txt | 0 .../dts-bindings => devicetree/bindings/powerpc}/fsl/lbc.txt | 0 .../dts-bindings => devicetree/bindings/powerpc}/fsl/mcm.txt | 0 .../bindings/powerpc}/fsl/mcu-mpc8349emitx.txt | 0 .../bindings/powerpc}/fsl/mpc5121-psc.txt | 0 .../dts-bindings => devicetree/bindings/powerpc}/fsl/mpc5200.txt | 0 .../dts-bindings => devicetree/bindings/powerpc}/fsl/mpic.txt | 0 .../dts-bindings => devicetree/bindings/powerpc}/fsl/msi-pic.txt | 0 .../dts-bindings => devicetree/bindings/powerpc}/fsl/pmc.txt | 0 .../dts-bindings => devicetree/bindings/powerpc}/fsl/sec.txt | 0 .../dts-bindings => devicetree/bindings/powerpc}/fsl/ssi.txt | 0 .../bindings/powerpc}/nintendo/gamecube.txt | 0 .../dts-bindings => devicetree/bindings/powerpc}/nintendo/wii.txt | 0 .../fsl/spi.txt => devicetree/bindings/spi/fsl-spi.txt} | 0 .../{powerpc/dts-bindings => devicetree/bindings/spi}/spi-bus.txt | 0 .../fsl/usb.txt => devicetree/bindings/usb/fsl-usb.txt} | 0 .../dts-bindings => devicetree/bindings/usb}/usb-ehci.txt | 0 .../{powerpc/dts-bindings => devicetree/bindings}/xilinx.txt | 0 Documentation/{powerpc => devicetree}/booting-without-of.txt | 0 60 files changed, 0 insertions(+), 0 deletions(-) rename Documentation/{powerpc/dts-bindings/fsl/sata.txt => devicetree/bindings/ata/fsl-sata.txt} (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings}/eeprom.txt (100%) rename Documentation/{powerpc/dts-bindings/fsl => devicetree/bindings/gpio}/8xxx_gpio.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings}/gpio/gpio.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings}/gpio/led.txt (100%) rename Documentation/{powerpc/dts-bindings/fsl/i2c.txt => devicetree/bindings/i2c/fsl-i2c.txt} (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings}/marvell.txt (100%) rename Documentation/{powerpc/dts-bindings/fsl/esdhc.txt => devicetree/bindings/mmc/fsl-esdhc.txt} (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/mmc}/mmc-spi-slot.txt (100%) rename Documentation/{powerpc/dts-bindings/fsl/upm-nand.txt => devicetree/bindings/mtd/fsl-upm-nand.txt} (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/mtd}/mtd-physmap.txt (100%) rename Documentation/{powerpc/dts-bindings/fsl/can.txt => devicetree/bindings/net/can/mpc5xxx-mscan.txt} (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/net}/can/sja1000.txt (100%) rename Documentation/{powerpc/dts-bindings/fsl/tsec.txt => devicetree/bindings/net/fsl-tsec-phy.txt} (100%) rename Documentation/{powerpc/dts-bindings/gpio/mdio.txt => devicetree/bindings/net/mdio-gpio.txt} (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/net}/phy.txt (100%) rename Documentation/{powerpc/dts-bindings/fsl => devicetree/bindings/pci}/83xx-512x-pci.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/4xx/cpm.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/4xx/emac.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/4xx/ndfc.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/4xx/ppc440spe-adma.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/4xx/reboot.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/board.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/cpm_qe/cpm.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/cpm_qe/cpm/brg.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/cpm_qe/cpm/i2c.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/cpm_qe/cpm/pic.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/cpm_qe/cpm/usb.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/cpm_qe/gpio.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/cpm_qe/network.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/cpm_qe/qe.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/cpm_qe/qe/firmware.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/cpm_qe/qe/par_io.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/cpm_qe/qe/pincfg.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/cpm_qe/qe/ucc.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/cpm_qe/qe/usb.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/cpm_qe/serial.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/diu.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/dma.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc/fsl}/ecm.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/gtm.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/guts.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/lbc.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/mcm.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/mcu-mpc8349emitx.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/mpc5121-psc.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/mpc5200.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/mpic.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/msi-pic.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/pmc.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/sec.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/fsl/ssi.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/nintendo/gamecube.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/powerpc}/nintendo/wii.txt (100%) rename Documentation/{powerpc/dts-bindings/fsl/spi.txt => devicetree/bindings/spi/fsl-spi.txt} (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/spi}/spi-bus.txt (100%) rename Documentation/{powerpc/dts-bindings/fsl/usb.txt => devicetree/bindings/usb/fsl-usb.txt} (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings/usb}/usb-ehci.txt (100%) rename Documentation/{powerpc/dts-bindings => devicetree/bindings}/xilinx.txt (100%) rename Documentation/{powerpc => devicetree}/booting-without-of.txt (100%) diff --git a/Documentation/powerpc/dts-bindings/fsl/sata.txt b/Documentation/devicetree/bindings/ata/fsl-sata.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/sata.txt rename to Documentation/devicetree/bindings/ata/fsl-sata.txt diff --git a/Documentation/powerpc/dts-bindings/eeprom.txt b/Documentation/devicetree/bindings/eeprom.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/eeprom.txt rename to Documentation/devicetree/bindings/eeprom.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/8xxx_gpio.txt b/Documentation/devicetree/bindings/gpio/8xxx_gpio.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/8xxx_gpio.txt rename to Documentation/devicetree/bindings/gpio/8xxx_gpio.txt diff --git a/Documentation/powerpc/dts-bindings/gpio/gpio.txt b/Documentation/devicetree/bindings/gpio/gpio.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/gpio/gpio.txt rename to Documentation/devicetree/bindings/gpio/gpio.txt diff --git a/Documentation/powerpc/dts-bindings/gpio/led.txt b/Documentation/devicetree/bindings/gpio/led.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/gpio/led.txt rename to Documentation/devicetree/bindings/gpio/led.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/i2c.txt b/Documentation/devicetree/bindings/i2c/fsl-i2c.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/i2c.txt rename to Documentation/devicetree/bindings/i2c/fsl-i2c.txt diff --git a/Documentation/powerpc/dts-bindings/marvell.txt b/Documentation/devicetree/bindings/marvell.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/marvell.txt rename to Documentation/devicetree/bindings/marvell.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/esdhc.txt b/Documentation/devicetree/bindings/mmc/fsl-esdhc.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/esdhc.txt rename to Documentation/devicetree/bindings/mmc/fsl-esdhc.txt diff --git a/Documentation/powerpc/dts-bindings/mmc-spi-slot.txt b/Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/mmc-spi-slot.txt rename to Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/upm-nand.txt b/Documentation/devicetree/bindings/mtd/fsl-upm-nand.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/upm-nand.txt rename to Documentation/devicetree/bindings/mtd/fsl-upm-nand.txt diff --git a/Documentation/powerpc/dts-bindings/mtd-physmap.txt b/Documentation/devicetree/bindings/mtd/mtd-physmap.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/mtd-physmap.txt rename to Documentation/devicetree/bindings/mtd/mtd-physmap.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/can.txt b/Documentation/devicetree/bindings/net/can/mpc5xxx-mscan.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/can.txt rename to Documentation/devicetree/bindings/net/can/mpc5xxx-mscan.txt diff --git a/Documentation/powerpc/dts-bindings/can/sja1000.txt b/Documentation/devicetree/bindings/net/can/sja1000.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/can/sja1000.txt rename to Documentation/devicetree/bindings/net/can/sja1000.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/tsec.txt b/Documentation/devicetree/bindings/net/fsl-tsec-phy.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/tsec.txt rename to Documentation/devicetree/bindings/net/fsl-tsec-phy.txt diff --git a/Documentation/powerpc/dts-bindings/gpio/mdio.txt b/Documentation/devicetree/bindings/net/mdio-gpio.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/gpio/mdio.txt rename to Documentation/devicetree/bindings/net/mdio-gpio.txt diff --git a/Documentation/powerpc/dts-bindings/phy.txt b/Documentation/devicetree/bindings/net/phy.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/phy.txt rename to Documentation/devicetree/bindings/net/phy.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/83xx-512x-pci.txt b/Documentation/devicetree/bindings/pci/83xx-512x-pci.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/83xx-512x-pci.txt rename to Documentation/devicetree/bindings/pci/83xx-512x-pci.txt diff --git a/Documentation/powerpc/dts-bindings/4xx/cpm.txt b/Documentation/devicetree/bindings/powerpc/4xx/cpm.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/4xx/cpm.txt rename to Documentation/devicetree/bindings/powerpc/4xx/cpm.txt diff --git a/Documentation/powerpc/dts-bindings/4xx/emac.txt b/Documentation/devicetree/bindings/powerpc/4xx/emac.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/4xx/emac.txt rename to Documentation/devicetree/bindings/powerpc/4xx/emac.txt diff --git a/Documentation/powerpc/dts-bindings/4xx/ndfc.txt b/Documentation/devicetree/bindings/powerpc/4xx/ndfc.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/4xx/ndfc.txt rename to Documentation/devicetree/bindings/powerpc/4xx/ndfc.txt diff --git a/Documentation/powerpc/dts-bindings/4xx/ppc440spe-adma.txt b/Documentation/devicetree/bindings/powerpc/4xx/ppc440spe-adma.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/4xx/ppc440spe-adma.txt rename to Documentation/devicetree/bindings/powerpc/4xx/ppc440spe-adma.txt diff --git a/Documentation/powerpc/dts-bindings/4xx/reboot.txt b/Documentation/devicetree/bindings/powerpc/4xx/reboot.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/4xx/reboot.txt rename to Documentation/devicetree/bindings/powerpc/4xx/reboot.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/board.txt b/Documentation/devicetree/bindings/powerpc/fsl/board.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/board.txt rename to Documentation/devicetree/bindings/powerpc/fsl/board.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/cpm.txt b/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/cpm.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/cpm_qe/cpm.txt rename to Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/cpm.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/cpm/brg.txt b/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/cpm/brg.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/cpm_qe/cpm/brg.txt rename to Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/cpm/brg.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/cpm/i2c.txt b/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/cpm/i2c.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/cpm_qe/cpm/i2c.txt rename to Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/cpm/i2c.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/cpm/pic.txt b/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/cpm/pic.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/cpm_qe/cpm/pic.txt rename to Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/cpm/pic.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/cpm/usb.txt b/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/cpm/usb.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/cpm_qe/cpm/usb.txt rename to Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/cpm/usb.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/gpio.txt b/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/gpio.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/cpm_qe/gpio.txt rename to Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/gpio.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/network.txt b/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/network.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/cpm_qe/network.txt rename to Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/network.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/qe.txt b/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/cpm_qe/qe.txt rename to Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/qe/firmware.txt b/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/firmware.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/cpm_qe/qe/firmware.txt rename to Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/firmware.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/qe/par_io.txt b/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/par_io.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/cpm_qe/qe/par_io.txt rename to Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/par_io.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/qe/pincfg.txt b/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/pincfg.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/cpm_qe/qe/pincfg.txt rename to Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/pincfg.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/qe/ucc.txt b/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/ucc.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/cpm_qe/qe/ucc.txt rename to Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/ucc.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/qe/usb.txt b/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/usb.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/cpm_qe/qe/usb.txt rename to Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/usb.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/serial.txt b/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/serial.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/cpm_qe/serial.txt rename to Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/serial.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/diu.txt b/Documentation/devicetree/bindings/powerpc/fsl/diu.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/diu.txt rename to Documentation/devicetree/bindings/powerpc/fsl/diu.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/dma.txt b/Documentation/devicetree/bindings/powerpc/fsl/dma.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/dma.txt rename to Documentation/devicetree/bindings/powerpc/fsl/dma.txt diff --git a/Documentation/powerpc/dts-bindings/ecm.txt b/Documentation/devicetree/bindings/powerpc/fsl/ecm.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/ecm.txt rename to Documentation/devicetree/bindings/powerpc/fsl/ecm.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/gtm.txt b/Documentation/devicetree/bindings/powerpc/fsl/gtm.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/gtm.txt rename to Documentation/devicetree/bindings/powerpc/fsl/gtm.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/guts.txt b/Documentation/devicetree/bindings/powerpc/fsl/guts.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/guts.txt rename to Documentation/devicetree/bindings/powerpc/fsl/guts.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/lbc.txt b/Documentation/devicetree/bindings/powerpc/fsl/lbc.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/lbc.txt rename to Documentation/devicetree/bindings/powerpc/fsl/lbc.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/mcm.txt b/Documentation/devicetree/bindings/powerpc/fsl/mcm.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/mcm.txt rename to Documentation/devicetree/bindings/powerpc/fsl/mcm.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/mcu-mpc8349emitx.txt b/Documentation/devicetree/bindings/powerpc/fsl/mcu-mpc8349emitx.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/mcu-mpc8349emitx.txt rename to Documentation/devicetree/bindings/powerpc/fsl/mcu-mpc8349emitx.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/mpc5121-psc.txt b/Documentation/devicetree/bindings/powerpc/fsl/mpc5121-psc.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/mpc5121-psc.txt rename to Documentation/devicetree/bindings/powerpc/fsl/mpc5121-psc.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/mpc5200.txt b/Documentation/devicetree/bindings/powerpc/fsl/mpc5200.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/mpc5200.txt rename to Documentation/devicetree/bindings/powerpc/fsl/mpc5200.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/mpic.txt b/Documentation/devicetree/bindings/powerpc/fsl/mpic.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/mpic.txt rename to Documentation/devicetree/bindings/powerpc/fsl/mpic.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/msi-pic.txt b/Documentation/devicetree/bindings/powerpc/fsl/msi-pic.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/msi-pic.txt rename to Documentation/devicetree/bindings/powerpc/fsl/msi-pic.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/pmc.txt b/Documentation/devicetree/bindings/powerpc/fsl/pmc.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/pmc.txt rename to Documentation/devicetree/bindings/powerpc/fsl/pmc.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/sec.txt b/Documentation/devicetree/bindings/powerpc/fsl/sec.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/sec.txt rename to Documentation/devicetree/bindings/powerpc/fsl/sec.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/ssi.txt b/Documentation/devicetree/bindings/powerpc/fsl/ssi.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/ssi.txt rename to Documentation/devicetree/bindings/powerpc/fsl/ssi.txt diff --git a/Documentation/powerpc/dts-bindings/nintendo/gamecube.txt b/Documentation/devicetree/bindings/powerpc/nintendo/gamecube.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/nintendo/gamecube.txt rename to Documentation/devicetree/bindings/powerpc/nintendo/gamecube.txt diff --git a/Documentation/powerpc/dts-bindings/nintendo/wii.txt b/Documentation/devicetree/bindings/powerpc/nintendo/wii.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/nintendo/wii.txt rename to Documentation/devicetree/bindings/powerpc/nintendo/wii.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/spi.txt b/Documentation/devicetree/bindings/spi/fsl-spi.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/spi.txt rename to Documentation/devicetree/bindings/spi/fsl-spi.txt diff --git a/Documentation/powerpc/dts-bindings/spi-bus.txt b/Documentation/devicetree/bindings/spi/spi-bus.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/spi-bus.txt rename to Documentation/devicetree/bindings/spi/spi-bus.txt diff --git a/Documentation/powerpc/dts-bindings/fsl/usb.txt b/Documentation/devicetree/bindings/usb/fsl-usb.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/fsl/usb.txt rename to Documentation/devicetree/bindings/usb/fsl-usb.txt diff --git a/Documentation/powerpc/dts-bindings/usb-ehci.txt b/Documentation/devicetree/bindings/usb/usb-ehci.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/usb-ehci.txt rename to Documentation/devicetree/bindings/usb/usb-ehci.txt diff --git a/Documentation/powerpc/dts-bindings/xilinx.txt b/Documentation/devicetree/bindings/xilinx.txt similarity index 100% rename from Documentation/powerpc/dts-bindings/xilinx.txt rename to Documentation/devicetree/bindings/xilinx.txt diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/devicetree/booting-without-of.txt similarity index 100% rename from Documentation/powerpc/booting-without-of.txt rename to Documentation/devicetree/booting-without-of.txt From b9b3f82f94b52ebb0bbdf6cd77ccc5e8ee3f53b5 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Wed, 12 Jan 2011 12:12:31 +0100 Subject: [PATCH 026/277] dmaengine i.MX sdma: set maximum segment size for our device Signed-off-by: Sascha Hauer --- drivers/dma/imx-sdma.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index d5a5d4d9c19b..c50305043f15 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -301,6 +301,7 @@ struct sdma_firmware_header { struct sdma_engine { struct device *dev; + struct device_dma_parameters dma_parms; struct sdma_channel channel[MAX_DMA_CHANNELS]; struct sdma_channel_control *channel_control; void __iomem *regs; @@ -1317,6 +1318,8 @@ static int __init sdma_probe(struct platform_device *pdev) sdma->dma_device.device_prep_dma_cyclic = sdma_prep_dma_cyclic; sdma->dma_device.device_control = sdma_control; sdma->dma_device.device_issue_pending = sdma_issue_pending; + sdma->dma_device.dev->dma_parms = &sdma->dma_parms; + dma_set_max_seg_size(sdma->dma_device.dev, 65535); ret = dma_async_device_register(&sdma->dma_device); if (ret) { From 1fa81c270da4d8dffa84fcca448654a10ed0a5dc Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Wed, 12 Jan 2011 13:02:28 +0100 Subject: [PATCH 027/277] dmaengine i.MX sdma: check sg entries for valid addresses and lengths This patch lets sdma_prep_slave_sg fail if the entries of an sg list do not start on multiples of the word size or if the lengths are not multiple of the word size. Also, catch the previously unhandled DMA_SLAVE_BUSWIDTH_8_BYTES and DMA_SLAVE_BUSWIDTH_UNDEFINED cases. Signed-off-by: Sascha Hauer --- drivers/dma/imx-sdma.c | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index c50305043f15..8707723e36da 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -925,10 +925,24 @@ static struct dma_async_tx_descriptor *sdma_prep_slave_sg( ret = -EINVAL; goto err_out; } - if (sdmac->word_size == DMA_SLAVE_BUSWIDTH_4_BYTES) + + switch (sdmac->word_size) { + case DMA_SLAVE_BUSWIDTH_4_BYTES: bd->mode.command = 0; - else - bd->mode.command = sdmac->word_size; + if (count & 3 || sg->dma_address & 3) + return NULL; + break; + case DMA_SLAVE_BUSWIDTH_2_BYTES: + bd->mode.command = 2; + if (count & 1 || sg->dma_address & 1) + return NULL; + break; + case DMA_SLAVE_BUSWIDTH_1_BYTE: + bd->mode.command = 1; + break; + default: + return NULL; + } param = BD_DONE | BD_EXTD | BD_CONT; From 7a0e9b2557902bdca563a5eb1bbac87560bd7d20 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Mon, 31 Jan 2011 10:19:53 +0100 Subject: [PATCH 028/277] dmaengine i.MX SDMA: do not initialize chan_id field This is bogus as the dmaengine core will overwrite this field. Signed-off-by: Sascha Hauer --- drivers/dma/imx-sdma.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 8707723e36da..3e848ee9a18a 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -1307,7 +1307,6 @@ static int __init sdma_probe(struct platform_device *pdev) dma_cap_set(DMA_CYCLIC, sdma->dma_device.cap_mask); sdmac->chan.device = &sdma->dma_device; - sdmac->chan.chan_id = i; sdmac->channel = i; /* Add the channel to the DMAC list */ From 7214a8b14f63a1603401124bc150e17b145aa476 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Mon, 31 Jan 2011 10:21:35 +0100 Subject: [PATCH 029/277] dmaengine i.MX SDMA: initialize dma capabilities outside channel loop The capabilities are device specific fields, not channel specific fields. Signed-off-by: Sascha Hauer --- drivers/dma/imx-sdma.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 3e848ee9a18a..eb250681804b 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -1295,6 +1295,9 @@ static int __init sdma_probe(struct platform_device *pdev) sdma->version = pdata->sdma_version; + dma_cap_set(DMA_SLAVE, sdma->dma_device.cap_mask); + dma_cap_set(DMA_CYCLIC, sdma->dma_device.cap_mask); + INIT_LIST_HEAD(&sdma->dma_device.channels); /* Initialize channel parameters */ for (i = 0; i < MAX_DMA_CHANNELS; i++) { @@ -1303,9 +1306,6 @@ static int __init sdma_probe(struct platform_device *pdev) sdmac->sdma = sdma; spin_lock_init(&sdmac->lock); - dma_cap_set(DMA_SLAVE, sdma->dma_device.cap_mask); - dma_cap_set(DMA_CYCLIC, sdma->dma_device.cap_mask); - sdmac->chan.device = &sdma->dma_device; sdmac->channel = i; From 23889c6352ab4a842a30221bb412ff49954b2fb3 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Mon, 31 Jan 2011 10:56:58 +0100 Subject: [PATCH 030/277] dmaengine i.MX SDMA: reserve channel 0 by not registering it We need channel 0 of the sdma engine for internal purposes. We accomplished this by calling dma_request_channel() in the probe function. This does not work when multiple dma engines are present which is the case when IPU support for i.MX31/35 is compiled in. So instead of registering channel 0 and reserving it afterwards simply do not register it in the first place. With this the dmaengine channel counting does not match sdma channel counting anymore, so we have to use sdma channel counting in the driver. Signed-off-by: Sascha Hauer --- drivers/dma/imx-sdma.c | 30 ++++++++++++------------------ 1 file changed, 12 insertions(+), 18 deletions(-) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index eb250681804b..1eb3f0077403 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -230,7 +230,7 @@ struct sdma_engine; * struct sdma_channel - housekeeping for a SDMA channel * * @sdma pointer to the SDMA engine for this channel - * @channel the channel number, matches dmaengine chan_id + * @channel the channel number, matches dmaengine chan_id + 1 * @direction transfer type. Needed for setting SDMA script * @peripheral_type Peripheral type. Needed for setting SDMA script * @event_id0 aka dma request line @@ -799,7 +799,7 @@ static dma_cookie_t sdma_tx_submit(struct dma_async_tx_descriptor *tx) cookie = sdma_assign_cookie(sdmac); - sdma_enable_channel(sdma, tx->chan->chan_id); + sdma_enable_channel(sdma, sdmac->channel); spin_unlock_irq(&sdmac->lock); @@ -812,10 +812,6 @@ static int sdma_alloc_chan_resources(struct dma_chan *chan) struct imx_dma_data *data = chan->private; int prio, ret; - /* No need to execute this for internal channel 0 */ - if (chan->chan_id == 0) - return 0; - if (!data) return -EINVAL; @@ -880,7 +876,7 @@ static struct dma_async_tx_descriptor *sdma_prep_slave_sg( struct sdma_channel *sdmac = to_sdma_chan(chan); struct sdma_engine *sdma = sdmac->sdma; int ret, i, count; - int channel = chan->chan_id; + int channel = sdmac->channel; struct scatterlist *sg; if (sdmac->status == DMA_IN_PROGRESS) @@ -978,7 +974,7 @@ static struct dma_async_tx_descriptor *sdma_prep_dma_cyclic( struct sdma_channel *sdmac = to_sdma_chan(chan); struct sdma_engine *sdma = sdmac->sdma; int num_periods = buf_len / period_len; - int channel = chan->chan_id; + int channel = sdmac->channel; int ret, i = 0, buf = 0; dev_dbg(sdma->dev, "%s channel: %d\n", __func__, channel); @@ -1252,7 +1248,6 @@ static int __init sdma_probe(struct platform_device *pdev) struct resource *iores; struct sdma_platform_data *pdata = pdev->dev.platform_data; int i; - dma_cap_mask_t mask; struct sdma_engine *sdma; sdma = kzalloc(sizeof(*sdma), GFP_KERNEL); @@ -1309,8 +1304,14 @@ static int __init sdma_probe(struct platform_device *pdev) sdmac->chan.device = &sdma->dma_device; sdmac->channel = i; - /* Add the channel to the DMAC list */ - list_add_tail(&sdmac->chan.device_node, &sdma->dma_device.channels); + /* + * Add the channel to the DMAC list. Do not add channel 0 though + * because we need it internally in the SDMA driver. This also means + * that channel 0 in dmaengine counting matches sdma channel 1. + */ + if (i) + list_add_tail(&sdmac->chan.device_node, + &sdma->dma_device.channels); } ret = sdma_init(sdma); @@ -1340,13 +1341,6 @@ static int __init sdma_probe(struct platform_device *pdev) goto err_init; } - /* request channel 0. This is an internal control channel - * to the SDMA engine and not available to clients. - */ - dma_cap_zero(mask); - dma_cap_set(DMA_SLAVE, mask); - dma_request_channel(mask, NULL, NULL); - dev_info(sdma->dev, "initialized\n"); return 0; From 1e070a60997f5bbaadd498c34380e2aa110336cf Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Wed, 12 Jan 2011 13:14:37 +0100 Subject: [PATCH 031/277] dmaengine i.MX dma: set maximum segment size for our device Signed-off-by: Sascha Hauer --- drivers/dma/imx-dma.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c index e53d438142bb..a46e1d9fa3e4 100644 --- a/drivers/dma/imx-dma.c +++ b/drivers/dma/imx-dma.c @@ -49,6 +49,7 @@ struct imxdma_channel { struct imxdma_engine { struct device *dev; + struct device_dma_parameters dma_parms; struct dma_device dma_device; struct imxdma_channel channel[MAX_DMA_CHANNELS]; }; @@ -370,6 +371,9 @@ static int __init imxdma_probe(struct platform_device *pdev) platform_set_drvdata(pdev, imxdma); + imxdma->dma_device.dev->dma_parms = &imxdma->dma_parms; + dma_set_max_seg_size(imxdma->dma_device.dev, 0xffffff); + ret = dma_async_device_register(&imxdma->dma_device); if (ret) { dev_err(&pdev->dev, "unable to register\n"); From d07102a1bb0e759ce4571df30c62998ef5d8a8d3 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Wed, 12 Jan 2011 14:13:23 +0100 Subject: [PATCH 032/277] dmaengine i.MX dma: check sg entries for valid addresses and lengths Signed-off-by: Sascha Hauer --- drivers/dma/imx-dma.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c index a46e1d9fa3e4..a1eac99a5fa1 100644 --- a/drivers/dma/imx-dma.c +++ b/drivers/dma/imx-dma.c @@ -243,6 +243,21 @@ static struct dma_async_tx_descriptor *imxdma_prep_slave_sg( else dmamode = DMA_MODE_WRITE; + switch (imxdmac->word_size) { + case DMA_SLAVE_BUSWIDTH_4_BYTES: + if (sgl->length & 3 || sgl->dma_address & 3) + return NULL; + break; + case DMA_SLAVE_BUSWIDTH_2_BYTES: + if (sgl->length & 1 || sgl->dma_address & 1) + return NULL; + break; + case DMA_SLAVE_BUSWIDTH_1_BYTE: + break; + default: + return NULL; + } + ret = imx_dma_setup_sg(imxdmac->imxdma_channel, sgl, sg_len, dma_length, imxdmac->per_address, dmamode); if (ret) From 97a43dfe84119528ec2576129b91d619219ab716 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Mon, 31 Jan 2011 11:35:44 +0100 Subject: [PATCH 033/277] dmaengine i.MX DMA: do not initialize chan_id field Signed-off-by: Sascha Hauer --- drivers/dma/imx-dma.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c index a1eac99a5fa1..82627087b550 100644 --- a/drivers/dma/imx-dma.c +++ b/drivers/dma/imx-dma.c @@ -366,7 +366,6 @@ static int __init imxdma_probe(struct platform_device *pdev) dma_cap_set(DMA_CYCLIC, imxdma->dma_device.cap_mask); imxdmac->chan.device = &imxdma->dma_device; - imxdmac->chan.chan_id = i; imxdmac->channel = i; /* Add the channel to the DMAC list */ From f8a356ff96a9070156f863e4f7716e2a0eb8c995 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Mon, 31 Jan 2011 11:35:59 +0100 Subject: [PATCH 034/277] dmaengine i.MX dma: initialize dma capabilities outside channel loop The capabilities are device specific fields, not channel specific fields. Signed-off-by: Sascha Hauer --- drivers/dma/imx-dma.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c index 82627087b550..e18eaabe92b9 100644 --- a/drivers/dma/imx-dma.c +++ b/drivers/dma/imx-dma.c @@ -345,6 +345,9 @@ static int __init imxdma_probe(struct platform_device *pdev) INIT_LIST_HEAD(&imxdma->dma_device.channels); + dma_cap_set(DMA_SLAVE, imxdma->dma_device.cap_mask); + dma_cap_set(DMA_CYCLIC, imxdma->dma_device.cap_mask); + /* Initialize channel parameters */ for (i = 0; i < MAX_DMA_CHANNELS; i++) { struct imxdma_channel *imxdmac = &imxdma->channel[i]; @@ -362,9 +365,6 @@ static int __init imxdma_probe(struct platform_device *pdev) imxdmac->imxdma = imxdma; spin_lock_init(&imxdmac->lock); - dma_cap_set(DMA_SLAVE, imxdma->dma_device.cap_mask); - dma_cap_set(DMA_CYCLIC, imxdma->dma_device.cap_mask); - imxdmac->chan.device = &imxdma->dma_device; imxdmac->channel = i; From 1797c33f0edcdcc9a483c06233a203786666a97f Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Thu, 20 Jan 2011 05:50:35 +0800 Subject: [PATCH 035/277] dmaengine: imx-sdma: remove IMX_DMA_SG_LOOP handling in sdma_prep_slave_sg() This is a leftover from the time that the driver did not have sdma_prep_dma_cyclic callback and implemented sound dma as a looped sg chain. And it can be removed now. Signed-off-by: Shawn Guo Signed-off-by: Sascha Hauer --- drivers/dma/imx-sdma.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index d5a5d4d9c19b..cf8cc0b8e7f7 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -931,12 +931,6 @@ static struct dma_async_tx_descriptor *sdma_prep_slave_sg( param = BD_DONE | BD_EXTD | BD_CONT; - if (sdmac->flags & IMX_DMA_SG_LOOP) { - param |= BD_INTR; - if (i + 1 == sg_len) - param |= BD_WRAP; - } - if (i + 1 == sg_len) param |= BD_INTR; From 4b2ce9ddb370c4eb573540611c347d78ac4b54a0 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Thu, 20 Jan 2011 05:50:36 +0800 Subject: [PATCH 036/277] dmaengine: imx-sdma: set sdmac->status to DMA_ERROR in err_out of sdma_prep_slave_sg() sdma_prep_dma_cyclic() sets sdmac->status to DMA_ERROR in err_out, and sdma_prep_slave_sg() needs to do the same. Otherwise, sdmac->status stays at DMA_IN_PROGRESS, which will make the function return immediately next time it gets called. Signed-off-by: Shawn Guo Signed-off-by: Sascha Hauer --- drivers/dma/imx-sdma.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index cf8cc0b8e7f7..6fc04d85be6b 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -947,6 +947,7 @@ static struct dma_async_tx_descriptor *sdma_prep_slave_sg( return &sdmac->desc; err_out: + sdmac->status = DMA_ERROR; return NULL; } From 8a9659114c7be6f88253618252881ea6fe0588b4 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Thu, 20 Jan 2011 05:50:37 +0800 Subject: [PATCH 037/277] dmaengine: imx-sdma: return sdmac->status in sdma_tx_status() The sdmac->status was designed to reflect the status of the tx, so simply return it in sdma_tx_status(). Then dma client can call dma_async_is_tx_complete() to know the status of the tx. Signed-off-by: Shawn Guo Signed-off-by: Sascha Hauer --- drivers/dma/imx-sdma.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 6fc04d85be6b..f331ae0f7ec3 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -1061,14 +1061,12 @@ static enum dma_status sdma_tx_status(struct dma_chan *chan, { struct sdma_channel *sdmac = to_sdma_chan(chan); dma_cookie_t last_used; - enum dma_status ret; last_used = chan->cookie; - ret = dma_async_is_complete(cookie, sdmac->last_completed, last_used); dma_set_tx_state(txstate, sdmac->last_completed, last_used, 0); - return ret; + return sdmac->status; } static void sdma_issue_pending(struct dma_chan *chan) From 1e9cebb42de57f1243261939c77ab5b0f9bcf311 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Thu, 20 Jan 2011 05:50:38 +0800 Subject: [PATCH 038/277] dmaengine: imx-sdma: correct sdmac->status in sdma_handle_channel_loop() sdma_handle_channel_loop() is the handler of cyclic tx. One period success does not really mean the success of the tx. Instead of DMA_SUCCESS, DMA_IN_PROGRESS should be the one to tell. Signed-off-by: Shawn Guo Signed-off-by: Sascha Hauer --- drivers/dma/imx-sdma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index f331ae0f7ec3..cf93d1737f1e 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -449,7 +449,7 @@ static void sdma_handle_channel_loop(struct sdma_channel *sdmac) if (bd->mode.status & BD_RROR) sdmac->status = DMA_ERROR; else - sdmac->status = DMA_SUCCESS; + sdmac->status = DMA_IN_PROGRESS; bd->mode.status |= BD_DONE; sdmac->buf_tail++; From 341b9419a8c0a4cdb75773c576870f1eb655516d Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Thu, 20 Jan 2011 05:50:39 +0800 Subject: [PATCH 039/277] dmaengine: imx-sdma: fix up param for the last BD in sdma_prep_slave_sg() As per the reference manual, bit "L" should be set while bit "C" should be cleared for the last buffer descriptor in the non-cyclic chain, so that sdma can stop trying to find the next BD and end the transfer. In case of sdma_prep_slave_sg(), BD_LAST needs to be set and BD_CONT be cleared for the last BD. Signed-off-by: Shawn Guo Signed-off-by: Sascha Hauer --- drivers/dma/imx-sdma.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index cf93d1737f1e..4535f98b3553 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -931,8 +931,11 @@ static struct dma_async_tx_descriptor *sdma_prep_slave_sg( param = BD_DONE | BD_EXTD | BD_CONT; - if (i + 1 == sg_len) + if (i + 1 == sg_len) { param |= BD_INTR; + param |= BD_LAST; + param &= ~BD_CONT; + } dev_dbg(sdma->dev, "entry %d: count: %d dma: 0x%08x %s%s\n", i, count, sg->dma_address, From cf4e5c6e8d2b87ae8e61168a7dc860d68c578745 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Mon, 31 Jan 2011 00:12:26 -0700 Subject: [PATCH 040/277] dt: Remove obsolete description of powerpc boot interface 32 and 64 bit powerpc support has been merged for a while now, but the booting-without-of.txt document still describes 32 bit as not supporting multiplatform, which is no longer true. This patch fixes the documentation. Also remove references to powerpc-specific details outside of section I in preparation to add details for other architectures. v3: cleaned up a lot more powerpc-isms and updated text to reflect current usage conventions. Signed-off-by: Grant Likely --- .../devicetree/booting-without-of.txt | 165 ++++++------------ 1 file changed, 54 insertions(+), 111 deletions(-) diff --git a/Documentation/devicetree/booting-without-of.txt b/Documentation/devicetree/booting-without-of.txt index 7400d7555dc3..28b1c9d3d351 100644 --- a/Documentation/devicetree/booting-without-of.txt +++ b/Documentation/devicetree/booting-without-of.txt @@ -13,7 +13,6 @@ Table of Contents I - Introduction 1) Entry point for arch/powerpc - 2) Board support II - The DT block format 1) Header @@ -41,13 +40,6 @@ Table of Contents VI - System-on-a-chip devices and nodes 1) Defining child nodes of an SOC 2) Representing devices without a current OF specification - a) PHY nodes - b) Interrupt controllers - c) 4xx/Axon EMAC ethernet nodes - d) Xilinx IP cores - e) USB EHCI controllers - f) MDIO on GPIOs - g) SPI busses VII - Specifying interrupt information for devices 1) interrupts property @@ -123,7 +115,7 @@ Revision Information I - Introduction ================ -During the recent development of the Linux/ppc64 kernel, and more +During the development of the Linux/ppc64 kernel, and more specifically, the addition of new platform types outside of the old IBM pSeries/iSeries pair, it was decided to enforce some strict rules regarding the kernel entry and bootloader <-> kernel interfaces, in @@ -146,7 +138,7 @@ section III, but, for example, the kernel does not require you to create a node for every PCI device in the system. It is a requirement to have a node for PCI host bridges in order to provide interrupt routing informations and memory/IO ranges, among others. It is also -recommended to define nodes for on chip devices and other busses that +recommended to define nodes for on chip devices and other buses that don't specifically fit in an existing OF specification. This creates a great flexibility in the way the kernel can then probe those and match drivers to device, without having to hard code all sorts of tables. It @@ -158,7 +150,7 @@ it with special cases. 1) Entry point for arch/powerpc ------------------------------- - There is one and one single entry point to the kernel, at the start + There is one single entry point to the kernel, at the start of the kernel image. That entry point supports two calling conventions: @@ -210,12 +202,6 @@ it with special cases. with all CPUs. The way to do that with method b) will be described in a later revision of this document. - -2) Board support ----------------- - -64-bit kernels: - Board supports (platforms) are not exclusive config options. An arbitrary set of board supports can be built in a single kernel image. The kernel will "know" what set of functions to use for a @@ -234,48 +220,11 @@ it with special cases. containing the various callbacks that the generic code will use to get to your platform specific code - c) Add a reference to your "ppc_md" structure in the - "machines" table in arch/powerpc/kernel/setup_64.c if you are - a 64-bit platform. - - d) request and get assigned a platform number (see PLATFORM_* - constants in arch/powerpc/include/asm/processor.h - -32-bit embedded kernels: - - Currently, board support is essentially an exclusive config option. - The kernel is configured for a single platform. Part of the reason - for this is to keep kernels on embedded systems small and efficient; - part of this is due to the fact the code is already that way. In the - future, a kernel may support multiple platforms, but only if the + A kernel image may support multiple platforms, but only if the platforms feature the same core architecture. A single kernel build cannot support both configurations with Book E and configurations with classic Powerpc architectures. - 32-bit embedded platforms that are moved into arch/powerpc using a - flattened device tree should adopt the merged tree practice of - setting ppc_md up dynamically, even though the kernel is currently - built with support for only a single platform at a time. This allows - unification of the setup code, and will make it easier to go to a - multiple-platform-support model in the future. - -NOTE: I believe the above will be true once Ben's done with the merge -of the boot sequences.... someone speak up if this is wrong! - - To add a 32-bit embedded platform support, follow the instructions - for 64-bit platforms above, with the exception that the Kconfig - option should be set up such that the kernel builds exclusively for - the platform selected. The processor type for the platform should - enable another config option to select the specific board - supported. - -NOTE: If Ben doesn't merge the setup files, may need to change this to -point to setup_32.c - - - I will describe later the boot process and various callbacks that - your platform should implement. - II - The DT block format ======================== @@ -300,8 +249,8 @@ the block to RAM before passing it to the kernel. 1) Header --------- - The kernel is entered with r3 pointing to an area of memory that is - roughly described in arch/powerpc/include/asm/prom.h by the structure + The kernel is passed the physical address pointing to an area of memory + that is roughly described in include/linux/of_fdt.h by the structure boot_param_header: struct boot_param_header { @@ -339,7 +288,7 @@ struct boot_param_header { All values in this header are in big endian format, the various fields in this header are defined more precisely below. All "offset" values are in bytes from the start of the header; that is - from the value of r3. + from the physical base address of the device tree block. - magic @@ -437,7 +386,7 @@ struct boot_param_header { ------------------------------ - r3 -> | struct boot_param_header | + base -> | struct boot_param_header | ------------------------------ | (alignment gap) (*) | ------------------------------ @@ -457,7 +406,7 @@ struct boot_param_header { -----> ------------------------------ | | - --- (r3 + totalsize) + --- (base + totalsize) (*) The alignment gaps are not necessarily present; their presence and size are dependent on the various alignment requirements of @@ -500,7 +449,7 @@ the device-tree structure. It is typically used to represent "path" in the device-tree. More details about the actual format of these will be below. -The kernel powerpc generic code does not make any formal use of the +The kernel generic code does not make any formal use of the unit address (though some board support code may do) so the only real requirement here for the unit address is to ensure uniqueness of the node unit name at a given level of the tree. Nodes with no notion @@ -518,20 +467,21 @@ path to the root node is "/". Every node which actually represents an actual device (that is, a node which isn't only a virtual "container" for more nodes, like "/cpus" -is) is also required to have a "device_type" property indicating the -type of node . +is) is also required to have a "compatible" property indicating the +specific hardware and an optional list of devices it is fully +backwards compatible with. Finally, every node that can be referenced from a property in another -node is required to have a "linux,phandle" property. Real open -firmware implementations provide a unique "phandle" value for every -node that the "prom_init()" trampoline code turns into -"linux,phandle" properties. However, this is made optional if the -flattened device tree is used directly. An example of a node +node is required to have either a "phandle" or a "linux,phandle" +property. Real Open Firmware implementations provide a unique +"phandle" value for every node that the "prom_init()" trampoline code +turns into "linux,phandle" properties. However, this is made optional +if the flattened device tree is used directly. An example of a node referencing another node via "phandle" is when laying out the interrupt tree which will be described in a further version of this document. -This "linux, phandle" property is a 32-bit value that uniquely +The "phandle" property is a 32-bit value that uniquely identifies a node. You are free to use whatever values or system of values, internal pointers, or whatever to generate these, the only requirement is that every node for which you provide that property has @@ -694,7 +644,7 @@ made of 3 cells, the bottom two containing the actual address itself while the top cell contains address space indication, flags, and pci bus & device numbers. -For busses that support dynamic allocation, it's the accepted practice +For buses that support dynamic allocation, it's the accepted practice to then not provide the address in "reg" (keep it 0) though while providing a flag indicating the address is dynamically allocated, and then, to provide a separate "assigned-addresses" property that @@ -711,7 +661,7 @@ prom_parse.c file of the recent kernels for your bus type. The "reg" property only defines addresses and sizes (if #size-cells is non-0) within a given bus. In order to translate addresses upward (that is into parent bus addresses, and possibly into CPU physical -addresses), all busses must contain a "ranges" property. If the +addresses), all buses must contain a "ranges" property. If the "ranges" property is missing at a given level, it's assumed that translation isn't possible, i.e., the registers are not visible on the parent bus. The format of the "ranges" property for a bus is a list @@ -727,9 +677,9 @@ example, for a PCI host controller, that would be a CPU address. For a PCI<->ISA bridge, that would be a PCI address. It defines the base address in the parent bus where the beginning of that range is mapped. -For a new 64-bit powerpc board, I recommend either the 2/2 format or +For new 64-bit board support, I recommend either the 2/2 format or Apple's 2/1 format which is slightly more compact since sizes usually -fit in a single 32-bit word. New 32-bit powerpc boards should use a +fit in a single 32-bit word. New 32-bit board support should use a 1/1 format, unless the processor supports physical addresses greater than 32-bits, in which case a 2/1 format is recommended. @@ -754,7 +704,7 @@ of their actual names. While earlier users of Open Firmware like OldWorld macintoshes tended to use the actual device name for the "name" property, it's nowadays considered a good practice to use a name that is closer to the device -class (often equal to device_type). For example, nowadays, ethernet +class (often equal to device_type). For example, nowadays, Ethernet controllers are named "ethernet", an additional "model" property defining precisely the chip type/model, and "compatible" property defining the family in case a single driver can driver more than one @@ -772,7 +722,7 @@ is present). 4) Note about node and property names and character set ------------------------------------------------------- -While open firmware provides more flexible usage of 8859-1, this +While Open Firmware provides more flexible usage of 8859-1, this specification enforces more strict rules. Nodes and properties should be comprised only of ASCII characters 'a' to 'z', '0' to '9', ',', '.', '_', '+', '#', '?', and '-'. Node names additionally @@ -792,7 +742,7 @@ address which can extend beyond that limit. -------------------------------- These are all that are currently required. However, it is strongly recommended that you expose PCI host bridges as documented in the - PCI binding to open firmware, and your interrupt tree as documented + PCI binding to Open Firmware, and your interrupt tree as documented in OF interrupt tree specification. a) The root node @@ -802,20 +752,12 @@ address which can extend beyond that limit. - model : this is your board name/model - #address-cells : address representation for "root" devices - #size-cells: the size representation for "root" devices - - device_type : This property shouldn't be necessary. However, if - you decide to create a device_type for your root node, make sure it - is _not_ "chrp" unless your platform is a pSeries or PAPR compliant - one for 64-bit, or a CHRP-type machine for 32-bit as this will - matched by the kernel this way. - - Additionally, some recommended properties are: - - compatible : the board "family" generally finds its way here, for example, if you have 2 board models with a similar layout, that typically get driven by the same platform code in the - kernel, you would use a different "model" property but put a - value in "compatible". The kernel doesn't directly use that - value but it is generally useful. + kernel, you would specify the exact board model in the + compatible property followed by an entry that represents the SoC + model. The root node is also generally where you add additional properties specific to your board like the serial number if any, that sort of @@ -841,8 +783,11 @@ address which can extend beyond that limit. So under /cpus, you are supposed to create a node for every CPU on the machine. There is no specific restriction on the name of the - CPU, though It's common practice to call it PowerPC,. For + CPU, though it's common to call it ,. For example, Apple uses PowerPC,G5 while IBM uses PowerPC,970FX. + However, the Generic Names convention suggests that it would be + better to simply use 'cpu' for each cpu node and use the compatible + property to identify the specific cpu core. Required properties: @@ -923,7 +868,7 @@ compatibility. e) The /chosen node - This node is a bit "special". Normally, that's where open firmware + This node is a bit "special". Normally, that's where Open Firmware puts some variable environment information, like the arguments, or the default input/output devices. @@ -940,11 +885,7 @@ compatibility. console device if any. Typically, if you have serial devices on your board, you may want to put the full path to the one set as the default console in the firmware here, for the kernel to pick - it up as its own default console. If you look at the function - set_preferred_console() in arch/ppc64/kernel/setup.c, you'll see - that the kernel tries to find out the default console and has - knowledge of various types like 8250 serial ports. You may want - to extend this function to add your own. + it up as its own default console. Note that u-boot creates and fills in the chosen node for platforms that use it. @@ -955,23 +896,23 @@ compatibility. f) the /soc node - This node is used to represent a system-on-a-chip (SOC) and must be - present if the processor is a SOC. The top-level soc node contains - information that is global to all devices on the SOC. The node name - should contain a unit address for the SOC, which is the base address - of the memory-mapped register set for the SOC. The name of an soc + This node is used to represent a system-on-a-chip (SoC) and must be + present if the processor is a SoC. The top-level soc node contains + information that is global to all devices on the SoC. The node name + should contain a unit address for the SoC, which is the base address + of the memory-mapped register set for the SoC. The name of an SoC node should start with "soc", and the remainder of the name should represent the part number for the soc. For example, the MPC8540's soc node would be called "soc8540". Required properties: - - device_type : Should be "soc" - ranges : Should be defined as specified in 1) to describe the - translation of SOC addresses for memory mapped SOC registers. - - bus-frequency: Contains the bus frequency for the SOC node. + translation of SoC addresses for memory mapped SoC registers. + - bus-frequency: Contains the bus frequency for the SoC node. Typically, the value of this field is filled in by the boot loader. + - compatible : Exact model of the SoC Recommended properties: @@ -1155,12 +1096,13 @@ while all this has been defined and implemented. - An example of code for iterating nodes & retrieving properties directly from the flattened tree format can be found in the kernel - file arch/ppc64/kernel/prom.c, look at scan_flat_dt() function, + file drivers/of/fdt.c. Look at the of_scan_flat_dt() function, its usage in early_init_devtree(), and the corresponding various early_init_dt_scan_*() callbacks. That code can be re-used in a GPL bootloader, and as the author of that code, I would be happy to discuss possible free licensing to any vendor who wishes to integrate all or part of this code into a non-GPL bootloader. + (reference needed; who is 'I' here? ---gcl Jan 31, 2011) @@ -1203,18 +1145,19 @@ MPC8540. 2) Representing devices without a current OF specification ---------------------------------------------------------- -Currently, there are many devices on SOCs that do not have a standard -representation pre-defined as part of the open firmware -specifications, mainly because the boards that contain these SOCs are -not currently booted using open firmware. This section contains -descriptions for the SOC devices for which new nodes have been -defined; this list will expand as more and more SOC-containing -platforms are moved over to use the flattened-device-tree model. +Currently, there are many devices on SoCs that do not have a standard +representation defined as part of the Open Firmware specifications, +mainly because the boards that contain these SoCs are not currently +booted using Open Firmware. Binding documentation for new devices +should be added to the Documentation/devicetree/bindings directory. +That directory will expand as device tree support is added to more and +more SoCs. + VII - Specifying interrupt information for devices =================================================== -The device tree represents the busses and devices of a hardware +The device tree represents the buses and devices of a hardware system in a form similar to the physical bus topology of the hardware. From 9830fcd6f6a4781d8b46d2b35c13b39f30915c63 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Mon, 31 Jan 2011 00:09:58 -0700 Subject: [PATCH 041/277] dt: add documentation of ARM dt boot interface v3: added details to Documentation/arm/Booting Signed-off-by: Grant Likely --- Documentation/arm/Booting | 33 +++++++++++++-- .../devicetree/booting-without-of.txt | 40 +++++++++++++++++++ 2 files changed, 69 insertions(+), 4 deletions(-) diff --git a/Documentation/arm/Booting b/Documentation/arm/Booting index 76850295af8f..4e686a2ed91e 100644 --- a/Documentation/arm/Booting +++ b/Documentation/arm/Booting @@ -65,13 +65,19 @@ looks at the connected hardware is beyond the scope of this document. The boot loader must ultimately be able to provide a MACH_TYPE_xxx value to the kernel. (see linux/arch/arm/tools/mach-types). - -4. Setup the kernel tagged list -------------------------------- +4. Setup boot data +------------------ Existing boot loaders: OPTIONAL, HIGHLY RECOMMENDED New boot loaders: MANDATORY +The boot loader must provide either a tagged list or a dtb image for +passing configuration data to the kernel. The physical address of the +boot data is passed to the kernel in register r2. + +4a. Setup the kernel tagged list +-------------------------------- + The boot loader must create and initialise the kernel tagged list. A valid tagged list starts with ATAG_CORE and ends with ATAG_NONE. The ATAG_CORE tag may or may not be empty. An empty ATAG_CORE tag @@ -101,6 +107,24 @@ The tagged list must be placed in a region of memory where neither the kernel decompressor nor initrd 'bootp' program will overwrite it. The recommended placement is in the first 16KiB of RAM. +4b. Setup the device tree +------------------------- + +The boot loader must load a device tree image (dtb) into system ram +at a 64bit aligned address and initialize it with the boot data. The +dtb format is documented in Documentation/devicetree/booting-without-of.txt. +The kernel will look for the dtb magic value of 0xd00dfeed at the dtb +physical address to determine if a dtb has been passed instead of a +tagged list. + +The boot loader must pass at a minimum the size and location of the +system memory, and the root filesystem location. The dtb must be +placed in a region of memory where the kernel decompressor will not +overwrite it. The recommended placement is in the first 16KiB of RAM +with the caveat that it may not be located at physical address 0 since +the kernel interprets a value of 0 in r2 to mean neither a tagged list +nor a dtb were passed. + 5. Calling the kernel image --------------------------- @@ -125,7 +149,8 @@ In either case, the following conditions must be met: - CPU register settings r0 = 0, r1 = machine type number discovered in (3) above. - r2 = physical address of tagged list in system RAM. + r2 = physical address of tagged list in system RAM, or + physical address of device tree block (dtb) in system RAM - CPU mode All forms of interrupts must be disabled (IRQs and FIQs) diff --git a/Documentation/devicetree/booting-without-of.txt b/Documentation/devicetree/booting-without-of.txt index 28b1c9d3d351..9381a1481027 100644 --- a/Documentation/devicetree/booting-without-of.txt +++ b/Documentation/devicetree/booting-without-of.txt @@ -13,6 +13,7 @@ Table of Contents I - Introduction 1) Entry point for arch/powerpc + 2) Entry point for arch/arm II - The DT block format 1) Header @@ -225,6 +226,45 @@ it with special cases. cannot support both configurations with Book E and configurations with classic Powerpc architectures. +2) Entry point for arch/arm +--------------------------- + + There is one single entry point to the kernel, at the start + of the kernel image. That entry point supports two calling + conventions. A summary of the interface is described here. A full + description of the boot requirements is documented in + Documentation/arm/Booting + + a) ATAGS interface. Minimal information is passed from firmware + to the kernel with a tagged list of predefined parameters. + + r0 : 0 + + r1 : Machine type number + + r2 : Physical address of tagged list in system RAM + + b) Entry with a flattened device-tree block. Firmware loads the + physical address of the flattened device tree block (dtb) into r2, + r1 is not used, but it is considered good practise to use a valid + machine number as described in Documentation/arm/Booting. + + r0 : 0 + + r1 : Valid machine type number. When using a device tree, + a single machine type number will often be assigned to + represent a class or family of SoCs. + + r2 : physical pointer to the device-tree block + (defined in chapter II) in RAM. Device tree can be located + anywhere in system RAM, but it should be aligned on a 32 bit + boundary. + + The kernel will differentiate between ATAGS and device tree booting by + reading the memory pointed to by r1 and looking for either the flattened + device tree block magic value (0xd00dfeed) or the ATAG_CORE value at + offset 0x4 from r2 (0x54410001). + II - The DT block format ======================== From 28a1bc1c0a5a15e72afae1050b227761227b6af2 Mon Sep 17 00:00:00 2001 From: Ping Cheng Date: Mon, 31 Jan 2011 21:06:38 -0800 Subject: [PATCH 042/277] Input: wacom_w8001 - report resolution to userland Serial devices send both pen and touch data through the same logical port. Since we scaled touch to pen maximum, we use pen resolution for touch as well here. This is under the assumption that pen and touch share the same physical surface. In the case when a small physical dimensional difference occurs between pen and touch, we assume the tolerance for touch point precision is higher than pen and the difference is within touch point tolerance. A per-MT tool based resolution mechanism should be introduced if the above assumption does not hold true for the pen and touch devices any more. Signed-off-by: Ping Cheng Reviewed-by: Henrik Rydberg Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/wacom_w8001.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/input/touchscreen/wacom_w8001.c b/drivers/input/touchscreen/wacom_w8001.c index 5cb8449c909d..c14412ef4648 100644 --- a/drivers/input/touchscreen/wacom_w8001.c +++ b/drivers/input/touchscreen/wacom_w8001.c @@ -51,6 +51,10 @@ MODULE_LICENSE("GPL"); #define W8001_PKTLEN_TPCCTL 11 /* control packet */ #define W8001_PKTLEN_TOUCH2FG 13 +/* resolution in points/mm */ +#define W8001_PEN_RESOLUTION 100 +#define W8001_TOUCH_RESOLUTION 10 + struct w8001_coord { u8 rdy; u8 tsw; @@ -198,7 +202,7 @@ static void parse_touchquery(u8 *data, struct w8001_touch_query *query) query->y = 1024; if (query->panel_res) query->x = query->y = (1 << query->panel_res); - query->panel_res = 10; + query->panel_res = W8001_TOUCH_RESOLUTION; } } @@ -394,6 +398,8 @@ static int w8001_setup(struct w8001 *w8001) input_set_abs_params(dev, ABS_X, 0, coord.x, 0, 0); input_set_abs_params(dev, ABS_Y, 0, coord.y, 0, 0); + input_abs_set_res(dev, ABS_X, W8001_PEN_RESOLUTION); + input_abs_set_res(dev, ABS_Y, W8001_PEN_RESOLUTION); input_set_abs_params(dev, ABS_PRESSURE, 0, coord.pen_pressure, 0, 0); if (coord.tilt_x && coord.tilt_y) { input_set_abs_params(dev, ABS_TILT_X, 0, coord.tilt_x, 0, 0); @@ -418,14 +424,17 @@ static int w8001_setup(struct w8001 *w8001) w8001->max_touch_x = touch.x; w8001->max_touch_y = touch.y; - /* scale to pen maximum */ if (w8001->max_pen_x && w8001->max_pen_y) { + /* if pen is supported scale to pen maximum */ touch.x = w8001->max_pen_x; touch.y = w8001->max_pen_y; + touch.panel_res = W8001_PEN_RESOLUTION; } input_set_abs_params(dev, ABS_X, 0, touch.x, 0, 0); input_set_abs_params(dev, ABS_Y, 0, touch.y, 0, 0); + input_abs_set_res(dev, ABS_X, touch.panel_res); + input_abs_set_res(dev, ABS_Y, touch.panel_res); switch (touch.sensor_id) { case 0: From 456bb1697ec08c034449c81e03094fe26bedb9e9 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Tue, 21 Dec 2010 21:16:11 +0800 Subject: [PATCH 043/277] usb: musb: fix kernel panic during s2ram(v2) This patch fixes kernel panic during s2ram, which is caused by the below: - musb is not put into drv data of musb platform device if CONFIG_USB_MUSB_HDRC_HCD is defined - glue layer driver always get musb instance via platform_get_drvdata. The patch fixes the issue by always puting musb into drv data of musb platform device, which is doable even the platform device is a host controller device. Cc: Alan Stern Cc: Sergei Shtylyov Signed-off-by: Ming Lei Signed-off-by: Felipe Balbi --- drivers/usb/musb/musb_core.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 07cf394e491b..12b515b3b69e 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -128,12 +128,7 @@ MODULE_ALIAS("platform:" MUSB_DRIVER_NAME); static inline struct musb *dev_to_musb(struct device *dev) { -#ifdef CONFIG_USB_MUSB_HDRC_HCD - /* usbcore insists dev->driver_data is a "struct hcd *" */ - return hcd_to_musb(dev_get_drvdata(dev)); -#else return dev_get_drvdata(dev); -#endif } /*-------------------------------------------------------------------------*/ @@ -1876,10 +1871,9 @@ allocate_instance(struct device *dev, musb = kzalloc(sizeof *musb, GFP_KERNEL); if (!musb) return NULL; - dev_set_drvdata(dev, musb); #endif - + dev_set_drvdata(dev, musb); musb->mregs = mbase; musb->ctrl_base = mbase; musb->nIrq = -ENODEV; From 541079de88735152a993ff93e90096643730a054 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Fri, 10 Dec 2010 21:03:29 +0300 Subject: [PATCH 044/277] usb: musb: core: fix IRQ check musb_probe() only regards 0 as a wrong IRQ number, despite platform_get_irq() that it calls returns -ENXIO in that case. It leads to musb_init_controller() calling request_irq() with a negative IRQ number, and when it naturally fails, the following is printed to the console: request_irq -6 failed! musb_init_controller failed with status -19 Fix musb_probe() to filter out the error values as well as 0. Signed-off-by: Sergei Shtylyov Signed-off-by: Felipe Balbi --- drivers/usb/musb/musb_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 12b515b3b69e..54a8bd1047d6 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -2185,7 +2185,7 @@ static int __init musb_probe(struct platform_device *pdev) void __iomem *base; iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!iomem || irq == 0) + if (!iomem || irq <= 0) return -ENODEV; base = ioremap(iomem->start, resource_size(iomem)); From 9c668079c864c3b49d8deb56dafedf916b2a72d0 Mon Sep 17 00:00:00 2001 From: Bob Liu Date: Wed, 5 Jan 2011 17:36:41 +0800 Subject: [PATCH 045/277] usb: musb: hsdma: change back to use musb_read/writew Blackfin platform doesn't support 32bits musbdma registers, so change back to use musb_read/writew instead of musb_read/writel and simply some format casts. Signed-off-by: Bob Liu Signed-off-by: Felipe Balbi --- drivers/usb/musb/musbhsdma.h | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/drivers/usb/musb/musbhsdma.h b/drivers/usb/musb/musbhsdma.h index f763d62f151c..21056c924c74 100644 --- a/drivers/usb/musb/musbhsdma.h +++ b/drivers/usb/musb/musbhsdma.h @@ -94,24 +94,33 @@ static inline void musb_write_hsdma_addr(void __iomem *mbase, { musb_writew(mbase, MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_ADDR_LOW), - ((u16)((u32) dma_addr & 0xFFFF))); + dma_addr); musb_writew(mbase, MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_ADDR_HIGH), - ((u16)(((u32) dma_addr >> 16) & 0xFFFF))); + (dma_addr >> 16)); } static inline u32 musb_read_hsdma_count(void __iomem *mbase, u8 bchannel) { - return musb_readl(mbase, + u32 count = musb_readw(mbase, MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_COUNT_HIGH)); + + count = count << 16; + + count |= musb_readw(mbase, + MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_COUNT_LOW)); + + return count; } static inline void musb_write_hsdma_count(void __iomem *mbase, u8 bchannel, u32 len) { - musb_writel(mbase, + musb_writew(mbase, + MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_COUNT_LOW),len); + musb_writew(mbase, MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_COUNT_HIGH), - len); + (len >> 16)); } #endif /* CONFIG_BLACKFIN */ From 0662481855c389b75a0a54c32870cc90563d80a9 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Fri, 21 Jan 2011 13:39:20 +0800 Subject: [PATCH 046/277] usb: musb: disable double buffering when it's broken We know that blackfin doesn't support double buffering feature as of today. So we add a flag set by musb_platform_init() to forcefully disable that feature. Such flag is created and marked as deprecated to force us to find a solution for the missing double buffering support on blackfin. Signed-off-by: Felipe Balbi --- drivers/usb/musb/blackfin.c | 1 + drivers/usb/musb/musb_core.h | 12 ++++++++++++ drivers/usb/musb/musb_gadget.c | 12 ++++++++++-- drivers/usb/musb/musb_host.c | 11 +++++------ 4 files changed, 28 insertions(+), 8 deletions(-) diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c index eeba228eb2af..9d49d1cd7ce2 100644 --- a/drivers/usb/musb/blackfin.c +++ b/drivers/usb/musb/blackfin.c @@ -404,6 +404,7 @@ static int bfin_musb_init(struct musb *musb) musb->xceiv->set_power = bfin_musb_set_power; musb->isr = blackfin_interrupt; + musb->double_buffer_not_ok = true; return 0; } diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index d0c236f8e191..d74a8113ae74 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -488,6 +488,18 @@ struct musb { unsigned set_address:1; unsigned test_mode:1; unsigned softconnect:1; + /* + * FIXME: Remove this flag. + * + * This is only added to allow Blackfin to work + * with current driver. For some unknown reason + * Blackfin doesn't work with double buffering + * and that's enabled by default. + * + * We added this flag to forcefully disable double + * buffering until we get it working. + */ + unsigned double_buffer_not_ok:1 __deprecated; u8 address; u8 test_mode_nr; diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index ed58c6c8f15c..23dad4c8785d 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -989,7 +989,11 @@ static int musb_gadget_enable(struct usb_ep *ep, /* Set TXMAXP with the FIFO size of the endpoint * to disable double buffering mode. */ - musb_writew(regs, MUSB_TXMAXP, musb_ep->packet_sz | (musb_ep->hb_mult << 11)); + if (musb->double_buffer_not_ok) + musb_writew(regs, MUSB_TXMAXP, hw_ep->max_packet_sz_tx); + else + musb_writew(regs, MUSB_TXMAXP, musb_ep->packet_sz + | (musb_ep->hb_mult << 11)); csr = MUSB_TXCSR_MODE | MUSB_TXCSR_CLRDATATOG; if (musb_readw(regs, MUSB_TXCSR) @@ -1025,7 +1029,11 @@ static int musb_gadget_enable(struct usb_ep *ep, /* Set RXMAXP with the FIFO size of the endpoint * to disable double buffering mode. */ - musb_writew(regs, MUSB_RXMAXP, musb_ep->packet_sz | (musb_ep->hb_mult << 11)); + if (musb->double_buffer_not_ok) + musb_writew(regs, MUSB_RXMAXP, hw_ep->max_packet_sz_tx); + else + musb_writew(regs, MUSB_RXMAXP, musb_ep->packet_sz + | (musb_ep->hb_mult << 11)); /* force shared fifo to OUT-only mode */ if (hw_ep->is_shared_fifo) { diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 4d5bcb4e14d2..0f523d7db57b 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -609,7 +609,7 @@ musb_rx_reinit(struct musb *musb, struct musb_qh *qh, struct musb_hw_ep *ep) /* Set RXMAXP with the FIFO size of the endpoint * to disable double buffer mode. */ - if (musb->hwvers < MUSB_HWVERS_2000) + if (musb->double_buffer_not_ok) musb_writew(ep->regs, MUSB_RXMAXP, ep->max_packet_sz_rx); else musb_writew(ep->regs, MUSB_RXMAXP, @@ -784,14 +784,13 @@ static void musb_ep_program(struct musb *musb, u8 epnum, /* protocol/endpoint/interval/NAKlimit */ if (epnum) { musb_writeb(epio, MUSB_TXTYPE, qh->type_reg); - if (can_bulk_split(musb, qh->type)) + if (musb->double_buffer_not_ok) musb_writew(epio, MUSB_TXMAXP, - packet_sz - | ((hw_ep->max_packet_sz_tx / - packet_sz) - 1) << 11); + hw_ep->max_packet_sz_tx); else musb_writew(epio, MUSB_TXMAXP, - packet_sz); + qh->maxpacket | + ((qh->hb_mult - 1) << 11)); musb_writeb(epio, MUSB_TXINTERVAL, qh->intv_reg); } else { musb_writeb(epio, MUSB_NAKLIMIT0, qh->intv_reg); From c65bfa62b7185bdeb063c2a637f501f00997d068 Mon Sep 17 00:00:00 2001 From: Mian Yousaf Kaukab Date: Tue, 4 Jan 2011 12:47:02 +0100 Subject: [PATCH 047/277] usb: musb: maintain three states for buffer mappings instead of two If dma buffers are mapped by a higher layer, with a boolean musb_request.mapped it is still possible to call dma_sync_single_for_device() from musb_g_giveback(), even if txstate()/rxstate() has called unmap_dma_buffer() before falling back to pio mode. Moreover, check for musb_ep->dma is moved within map_dma_buffer() so where applicable checks for it are removed. And where possible, checks for is_dma_capable() are merged with buffer map state check. Signed-off-by: Mian Yousaf Kaukab Signed-off-by: Felipe Balbi --- drivers/usb/musb/musb_gadget.c | 45 +++++++++++++++++++--------------- drivers/usb/musb/musb_gadget.h | 8 +++++- 2 files changed, 32 insertions(+), 21 deletions(-) diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index 23dad4c8785d..65775039d6b3 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -92,11 +92,19 @@ /* ----------------------------------------------------------------------- */ +#define is_buffer_mapped(req) (is_dma_capable() && \ + (req->map_state != UN_MAPPED)) + /* Maps the buffer to dma */ static inline void map_dma_buffer(struct musb_request *request, - struct musb *musb) + struct musb *musb, struct musb_ep *musb_ep) { + request->map_state = UN_MAPPED; + + if (!is_dma_capable() || !musb_ep->dma) + return; + if (request->request.dma == DMA_ADDR_INVALID) { request->request.dma = dma_map_single( musb->controller, @@ -105,7 +113,7 @@ static inline void map_dma_buffer(struct musb_request *request, request->tx ? DMA_TO_DEVICE : DMA_FROM_DEVICE); - request->mapped = 1; + request->map_state = MUSB_MAPPED; } else { dma_sync_single_for_device(musb->controller, request->request.dma, @@ -113,7 +121,7 @@ static inline void map_dma_buffer(struct musb_request *request, request->tx ? DMA_TO_DEVICE : DMA_FROM_DEVICE); - request->mapped = 0; + request->map_state = PRE_MAPPED; } } @@ -121,11 +129,14 @@ static inline void map_dma_buffer(struct musb_request *request, static inline void unmap_dma_buffer(struct musb_request *request, struct musb *musb) { + if (!is_buffer_mapped(request)) + return; + if (request->request.dma == DMA_ADDR_INVALID) { DBG(20, "not unmapping a never mapped buffer\n"); return; } - if (request->mapped) { + if (request->map_state == MUSB_MAPPED) { dma_unmap_single(musb->controller, request->request.dma, request->request.length, @@ -133,16 +144,15 @@ static inline void unmap_dma_buffer(struct musb_request *request, ? DMA_TO_DEVICE : DMA_FROM_DEVICE); request->request.dma = DMA_ADDR_INVALID; - request->mapped = 0; - } else { + } else { /* PRE_MAPPED */ dma_sync_single_for_cpu(musb->controller, request->request.dma, request->request.length, request->tx ? DMA_TO_DEVICE : DMA_FROM_DEVICE); - } + request->map_state = UN_MAPPED; } /* @@ -172,8 +182,7 @@ __acquires(ep->musb->lock) ep->busy = 1; spin_unlock(&musb->lock); - if (is_dma_capable() && ep->dma) - unmap_dma_buffer(req, musb); + unmap_dma_buffer(req, musb); if (request->status == 0) DBG(5, "%s done request %p, %d/%d\n", ep->end_point.name, request, @@ -335,7 +344,7 @@ static void txstate(struct musb *musb, struct musb_request *req) csr); #ifndef CONFIG_MUSB_PIO_ONLY - if (is_dma_capable() && musb_ep->dma) { + if (is_buffer_mapped(req)) { struct dma_controller *c = musb->dma_controller; size_t request_size; @@ -436,8 +445,7 @@ static void txstate(struct musb *musb, struct musb_request *req) * Unmap the dma buffer back to cpu if dma channel * programming fails */ - if (is_dma_capable() && musb_ep->dma) - unmap_dma_buffer(req, musb); + unmap_dma_buffer(req, musb); musb_write_fifo(musb_ep->hw_ep, fifo_count, (u8 *) (request->buf + request->actual)); @@ -627,7 +635,7 @@ static void rxstate(struct musb *musb, struct musb_request *req) return; } - if (is_cppi_enabled() && musb_ep->dma) { + if (is_cppi_enabled() && is_buffer_mapped(req)) { struct dma_controller *c = musb->dma_controller; struct dma_channel *channel = musb_ep->dma; @@ -658,7 +666,7 @@ static void rxstate(struct musb *musb, struct musb_request *req) len = musb_readw(epio, MUSB_RXCOUNT); if (request->actual < request->length) { #ifdef CONFIG_USB_INVENTRA_DMA - if (is_dma_capable() && musb_ep->dma) { + if (is_buffer_mapped(req)) { struct dma_controller *c; struct dma_channel *channel; int use_dma = 0; @@ -742,7 +750,7 @@ static void rxstate(struct musb *musb, struct musb_request *req) fifo_count = min_t(unsigned, len, fifo_count); #ifdef CONFIG_USB_TUSB_OMAP_DMA - if (tusb_dma_omap() && musb_ep->dma) { + if (tusb_dma_omap() && is_buffer_mapped(req)) { struct dma_controller *c = musb->dma_controller; struct dma_channel *channel = musb_ep->dma; u32 dma_addr = request->dma + request->actual; @@ -762,7 +770,7 @@ static void rxstate(struct musb *musb, struct musb_request *req) * programming fails. This buffer is mapped if the * channel allocation is successful */ - if (is_dma_capable() && musb_ep->dma) { + if (is_buffer_mapped(req)) { unmap_dma_buffer(req, musb); /* @@ -1222,10 +1230,7 @@ static int musb_gadget_queue(struct usb_ep *ep, struct usb_request *req, request->epnum = musb_ep->current_epnum; request->tx = musb_ep->is_in; - if (is_dma_capable() && musb_ep->dma) - map_dma_buffer(request, musb); - else - request->mapped = 0; + map_dma_buffer(request, musb, musb_ep); spin_lock_irqsave(&musb->lock, lockflags); diff --git a/drivers/usb/musb/musb_gadget.h b/drivers/usb/musb/musb_gadget.h index dec8dc008191..a55354fbccf5 100644 --- a/drivers/usb/musb/musb_gadget.h +++ b/drivers/usb/musb/musb_gadget.h @@ -35,13 +35,19 @@ #ifndef __MUSB_GADGET_H #define __MUSB_GADGET_H +enum buffer_map_state { + UN_MAPPED = 0, + PRE_MAPPED, + MUSB_MAPPED +}; + struct musb_request { struct usb_request request; struct musb_ep *ep; struct musb *musb; u8 tx; /* endpoint direction */ u8 epnum; - u8 mapped; + enum buffer_map_state map_state; }; static inline struct musb_request *to_musb_request(struct usb_request *req) From 5f5761cb8e77f2f2321b7847eef9629e6896cd47 Mon Sep 17 00:00:00 2001 From: Mian Yousaf Kaukab Date: Tue, 4 Jan 2011 12:47:03 +0100 Subject: [PATCH 048/277] usb: musb: introduce api for dma code to check compatibility with usb request Gadget MUSB driver handles dma mappings in musb_gadget_queue(). Where as it is possible for dma code to reject the usb request later at ->channel_program() called from txstate()/rxstate() For example ->channel_program in tusb6010_omap.c: static int tusb_omap_dma_program(struct dma_channel *channel, u16 packet_sz, u8 rndis_mode, dma_addr_t dma_addr, u32 len) { ... if (unlikely(dma_addr & 0x1) || (len < 32) || (len > packet_sz)) return false; ... if (dma_addr & 0x2) return false; ... } In this case, usb request will be handled in PIO mode which renders dma mapping operations unnecessary. This patch adds an api to allow dma code to indicate incompatibility with usb request. Gadget musb driver call this api, if available, before dma mappings to avoid any unnecessary mapping operations. Signed-off-by: Mian Yousaf Kaukab Signed-off-by: Felipe Balbi --- drivers/usb/musb/musb_dma.h | 3 +++ drivers/usb/musb/musb_gadget.c | 14 ++++++++++++++ 2 files changed, 17 insertions(+) diff --git a/drivers/usb/musb/musb_dma.h b/drivers/usb/musb/musb_dma.h index 916065ba9e70..3a97c4e2d4f5 100644 --- a/drivers/usb/musb/musb_dma.h +++ b/drivers/usb/musb/musb_dma.h @@ -169,6 +169,9 @@ struct dma_controller { dma_addr_t dma_addr, u32 length); int (*channel_abort)(struct dma_channel *); + int (*is_compatible)(struct dma_channel *channel, + u16 maxpacket, + void *buf, u32 length); }; /* called after channel_program(), may indicate a fault */ diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index 65775039d6b3..2fe304611dcf 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -100,11 +100,25 @@ static inline void map_dma_buffer(struct musb_request *request, struct musb *musb, struct musb_ep *musb_ep) { + int compatible = true; + struct dma_controller *dma = musb->dma_controller; + request->map_state = UN_MAPPED; if (!is_dma_capable() || !musb_ep->dma) return; + /* Check if DMA engine can handle this request. + * DMA code must reject the USB request explicitly. + * Default behaviour is to map the request. + */ + if (dma->is_compatible) + compatible = dma->is_compatible(musb_ep->dma, + musb_ep->packet_sz, request->request.buf, + request->request.length); + if (!compatible) + return; + if (request->request.dma == DMA_ADDR_INVALID) { request->request.dma = dma_map_single( musb->controller, From 3e434a86cb21fba95d86b8d756997c235eade037 Mon Sep 17 00:00:00 2001 From: Jarkko Nikula Date: Fri, 7 Jan 2011 11:19:52 +0200 Subject: [PATCH 049/277] usb: ehci-omap: Show fatal probing time errors to end user There are a few error paths in ehci_hcd_omap_probe that can be triggered because of memory allocation or hw failure. Change those dev_dbg error prints to dev_err with an error code printed so that the end users are able to notice the issue. Signed-off-by: Jarkko Nikula Signed-off-by: Felipe Balbi --- drivers/usb/host/ehci-omap.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index 680f2ef4e59f..f784ceb862a3 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -796,7 +796,7 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) hcd = usb_create_hcd(&ehci_omap_hc_driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { - dev_dbg(&pdev->dev, "failed to create hcd with err %d\n", ret); + dev_err(&pdev->dev, "failed to create hcd with err %d\n", ret); ret = -ENOMEM; goto err_create_hcd; } @@ -864,7 +864,7 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) ret = omap_start_ehc(omap, hcd); if (ret) { - dev_dbg(&pdev->dev, "failed to start ehci\n"); + dev_err(&pdev->dev, "failed to start ehci with err %d\n", ret); goto err_start; } @@ -879,7 +879,7 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED); if (ret) { - dev_dbg(&pdev->dev, "failed to add hcd with err %d\n", ret); + dev_err(&pdev->dev, "failed to add hcd with err %d\n", ret); goto err_add_hcd; } From c6751b2bde477f56ceef67aa1d298ce44e8e2e23 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 2 Feb 2011 11:57:13 +1100 Subject: [PATCH 050/277] md: Don't allow slot_store while resync/recovery is happening. Activating a spare in an array while resync/recovery is already happening can lead the that spare being marked in-sync when it isn't really. So don't allow the 'slot' to be set (this activating the device) while resync/recovery is happening. Signed-off-by: NeilBrown --- drivers/md/md.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/md/md.c b/drivers/md/md.c index f2d5628d51cb..1138d1053e9a 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -2463,6 +2463,9 @@ slot_store(mdk_rdev_t *rdev, const char *buf, size_t len) if (rdev->raid_disk != -1) return -EBUSY; + if (test_bit(MD_RECOVERY_RUNNING, &rdev->mddev->recovery)) + return -EBUSY; + if (rdev->mddev->pers->hot_add_disk == NULL) return -EINVAL; From 71a77e07d0e33b57d4a50c173e5ce4fabceddbec Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 2 Feb 2011 12:13:49 +0000 Subject: [PATCH 051/277] drm/i915: Invalidate TLB caches on SNB BLT/BSD rings Signed-off-by: Chris Wilson Cc: stable@kernel.org --- drivers/gpu/drm/i915/i915_reg.h | 4 +++- drivers/gpu/drm/i915/intel_ringbuffer.c | 26 +++++++++++++++---------- 2 files changed, 19 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 5cfc68940f17..15d94c63918c 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -174,7 +174,9 @@ * address/value pairs. Don't overdue it, though, x <= 2^4 must hold! */ #define MI_LOAD_REGISTER_IMM(x) MI_INSTR(0x22, 2*x-1) -#define MI_FLUSH_DW MI_INSTR(0x26, 2) /* for GEN6 */ +#define MI_FLUSH_DW MI_INSTR(0x26, 1) /* for GEN6 */ +#define MI_INVALIDATE_TLB (1<<18) +#define MI_INVALIDATE_BSD (1<<7) #define MI_BATCH_BUFFER MI_INSTR(0x30, 1) #define MI_BATCH_NON_SECURE (1) #define MI_BATCH_NON_SECURE_I965 (1<<8) diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 6218fa97aa1e..445f27efe677 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -1059,22 +1059,25 @@ static void gen6_bsd_ring_write_tail(struct intel_ring_buffer *ring, } static int gen6_ring_flush(struct intel_ring_buffer *ring, - u32 invalidate_domains, - u32 flush_domains) + u32 invalidate, u32 flush) { + uint32_t cmd; int ret; - if ((flush_domains & I915_GEM_DOMAIN_RENDER) == 0) + if (((invalidate | flush) & I915_GEM_GPU_DOMAINS) == 0) return 0; ret = intel_ring_begin(ring, 4); if (ret) return ret; - intel_ring_emit(ring, MI_FLUSH_DW); - intel_ring_emit(ring, 0); + cmd = MI_FLUSH_DW; + if (invalidate & I915_GEM_GPU_DOMAINS) + cmd |= MI_INVALIDATE_TLB | MI_INVALIDATE_BSD; + intel_ring_emit(ring, cmd); intel_ring_emit(ring, 0); intel_ring_emit(ring, 0); + intel_ring_emit(ring, MI_NOOP); intel_ring_advance(ring); return 0; } @@ -1230,22 +1233,25 @@ static int blt_ring_begin(struct intel_ring_buffer *ring, } static int blt_ring_flush(struct intel_ring_buffer *ring, - u32 invalidate_domains, - u32 flush_domains) + u32 invalidate, u32 flush) { + uint32_t cmd; int ret; - if ((flush_domains & I915_GEM_DOMAIN_RENDER) == 0) + if (((invalidate | flush) & I915_GEM_DOMAIN_RENDER) == 0) return 0; ret = blt_ring_begin(ring, 4); if (ret) return ret; - intel_ring_emit(ring, MI_FLUSH_DW); - intel_ring_emit(ring, 0); + cmd = MI_FLUSH_DW; + if (invalidate & I915_GEM_DOMAIN_RENDER) + cmd |= MI_INVALIDATE_TLB; + intel_ring_emit(ring, cmd); intel_ring_emit(ring, 0); intel_ring_emit(ring, 0); + intel_ring_emit(ring, MI_NOOP); intel_ring_advance(ring); return 0; } From 0962bb217ac74c4b8fae34c5367ebc63131c962c Mon Sep 17 00:00:00 2001 From: Janusz Krzysztofik Date: Wed, 2 Feb 2011 21:11:41 +0100 Subject: [PATCH 052/277] ASoC: fill in snd_soc_pcm_runtime.card before calling snd_soc_dai_link.init() The .card member of the snd_soc_pcm_runtime structure pointed to by the snd_soc_dai_link.init() argument used to be initialized before the function being called. This has changed, probably unintentionally, after recent refactorings. Since the function implementations are free to make use of this pointer, move its assignment back before the function is called to avoid NULL pointer dereferences. Created and tested on Amstrad Delta againts linux-2.6.38-rc2 Signed-off-by: Janusz Krzysztofik Signed-off-by: Mark Brown --- sound/soc/soc-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index c4b60610beb0..c3f6f1e72790 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1449,6 +1449,7 @@ static int soc_post_component_init(struct snd_soc_card *card, rtd = &card->rtd_aux[num]; name = aux_dev->name; } + rtd->card = card; /* machine controls, routes and widgets are not prefixed */ temp = codec->name_prefix; @@ -1471,7 +1472,6 @@ static int soc_post_component_init(struct snd_soc_card *card, /* register the rtd device */ rtd->codec = codec; - rtd->card = card; rtd->dev.parent = card->dev; rtd->dev.release = rtd_release; rtd->dev.init_name = name; From ff458edc0c5ec42b299547fb7eb9790a4aecc632 Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Mon, 31 Jan 2011 13:56:03 -0800 Subject: [PATCH 053/277] iwlagn: overwrite EEPROM chain setting for 6250 devices 6250 2x2 devices have 2 tx chain and 2 rx chain. For some reason, the EEPROM contain incorrect information and indicate it only has single tx chain. overwrite it with .cfg parameter to make sure both chain 'A' and chain 'B' can be used for transmit and receive Signed-off-by: Wey-Yi Guy Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-6000.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c index af505bcd7ae0..ef36aff1bb43 100644 --- a/drivers/net/wireless/iwlwifi/iwl-6000.c +++ b/drivers/net/wireless/iwlwifi/iwl-6000.c @@ -681,6 +681,8 @@ struct iwl_cfg iwl6000i_2bg_cfg = { .fw_name_pre = IWL6050_FW_PRE, \ .ucode_api_max = IWL6050_UCODE_API_MAX, \ .ucode_api_min = IWL6050_UCODE_API_MIN, \ + .valid_tx_ant = ANT_AB, /* .cfg overwrite */ \ + .valid_rx_ant = ANT_AB, /* .cfg overwrite */ \ .ops = &iwl6050_ops, \ .eeprom_ver = EEPROM_6050_EEPROM_VERSION, \ .eeprom_calib_ver = EEPROM_6050_TX_POWER_VERSION, \ From 4334ec8518cec3f7a4feeb3dacb46acfb24904d4 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 2 Feb 2011 16:58:06 +0100 Subject: [PATCH 054/277] mac80211: fix TX status cookie in HW offload case When the off-channel TX is done with remain-on-channel offloaded to hardware, the reported cookie is wrong as in that case we shouldn't use the SKB as the cookie but need to instead use the corresponding r-o-c cookie (XOR'ed with 2 to prevent API mismatches). Fix this by keeping track of the hw_roc_skb pointer just for the status processing and use the correct cookie to report in this case. We can't use the hw_roc_skb pointer itself because it is NULL'ed when the frame is transmitted to prevent it being used twice. This fixes a bug where the P2P state machine in the supplicant gets stuck because it never gets a correct result for its transmitted frame. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/cfg.c | 2 ++ net/mac80211/ieee80211_i.h | 2 +- net/mac80211/status.c | 7 ++++++- 3 files changed, 9 insertions(+), 2 deletions(-) diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 4bc8a9250cfd..9cd73b11506e 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -1822,6 +1822,7 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev, *cookie ^= 2; IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN; local->hw_roc_skb = skb; + local->hw_roc_skb_for_status = skb; mutex_unlock(&local->mtx); return 0; @@ -1875,6 +1876,7 @@ static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, if (ret == 0) { kfree_skb(local->hw_roc_skb); local->hw_roc_skb = NULL; + local->hw_roc_skb_for_status = NULL; } mutex_unlock(&local->mtx); diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index c47d7c0e48a4..533fd32f49ff 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -953,7 +953,7 @@ struct ieee80211_local { struct ieee80211_channel *hw_roc_channel; struct net_device *hw_roc_dev; - struct sk_buff *hw_roc_skb; + struct sk_buff *hw_roc_skb, *hw_roc_skb_for_status; struct work_struct hw_roc_start, hw_roc_done; enum nl80211_channel_type hw_roc_channel_type; unsigned int hw_roc_duration; diff --git a/net/mac80211/status.c b/net/mac80211/status.c index 38a797217a91..071ac95c4aa0 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -323,6 +323,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX) { struct ieee80211_work *wk; + u64 cookie = (unsigned long)skb; rcu_read_lock(); list_for_each_entry_rcu(wk, &local->work_list, list) { @@ -334,8 +335,12 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) break; } rcu_read_unlock(); + if (local->hw_roc_skb_for_status == skb) { + cookie = local->hw_roc_cookie ^ 2; + local->hw_roc_skb_for_status = NULL; + } cfg80211_mgmt_tx_status( - skb->dev, (unsigned long) skb, skb->data, skb->len, + skb->dev, cookie, skb->data, skb->len, !!(info->flags & IEEE80211_TX_STAT_ACK), GFP_ATOMIC); } From 7c161d0b900ea9bd9fc5ea5d3fa9916e9eb0dd88 Mon Sep 17 00:00:00 2001 From: Haiyang Zhang Date: Wed, 2 Feb 2011 13:42:58 -0800 Subject: [PATCH 055/277] staging: hv: Enable sending GARP packet after live migration The hv_netvsc gets RNDIS_STATUS_MEDIA_CONNECT event after the VM is live migrated. Adding call to netif_notify_peers() for this event to send GARP (Gratuitous ARP) to notify network peers. Otherwise, the VM's network connection may stop after a live migration. This patch should also be applied to stable kernel 2.6.32 and later. Signed-off-by: Haiyang Zhang Signed-off-by: Hank Janssen Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/staging/hv/netvsc_drv.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/staging/hv/netvsc_drv.c b/drivers/staging/hv/netvsc_drv.c index 54706a16dc0a..b41c9640b72d 100644 --- a/drivers/staging/hv/netvsc_drv.c +++ b/drivers/staging/hv/netvsc_drv.c @@ -236,6 +236,7 @@ static void netvsc_linkstatus_callback(struct hv_device *device_obj, if (status == 1) { netif_carrier_on(net); netif_wake_queue(net); + netif_notify_peers(net); } else { netif_carrier_off(net); netif_stop_queue(net); From 454f1419f14a459b31af83e512adcc714fa0e5e5 Mon Sep 17 00:00:00 2001 From: Harsha Priya Date: Tue, 25 Jan 2011 14:29:20 +0000 Subject: [PATCH 056/277] staging: sst: Fix for dmic capture on v2 pmic currently capture through dmic captures only silence This patch configurs the dmic registers to capture properly Signed-off-by: Harsha Priya Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman --- drivers/staging/intel_sst/intelmid_v2_control.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/staging/intel_sst/intelmid_v2_control.c b/drivers/staging/intel_sst/intelmid_v2_control.c index e38e89df6e84..e2f6d6a3c850 100644 --- a/drivers/staging/intel_sst/intelmid_v2_control.c +++ b/drivers/staging/intel_sst/intelmid_v2_control.c @@ -874,7 +874,10 @@ static int nc_set_selected_input_dev(u8 value) sc_access[3].reg_addr = 0x109; sc_access[3].mask = MASK6; sc_access[3].value = 0x00; - num_val = 4; + sc_access[4].reg_addr = 0x104; + sc_access[4].value = 0x3C; + sc_access[4].mask = 0xff; + num_val = 5; break; default: return -EINVAL; From 6a3be6e6e7feb4cb35275475d6a863b748d59cc3 Mon Sep 17 00:00:00 2001 From: Roland Vossen Date: Tue, 25 Jan 2011 11:51:56 +0100 Subject: [PATCH 057/277] staging: brcm80211: bugfix for softmac crash on multi cpu configurations Solved a locking issue that resulted in driver crashes with the 43224 and 43225 chips. The problem has been reported on several fora. Root cause was two fold: hardware was being manipulated by two unsynchronized threads, and a scan operation could interfere with an ongoing dynamic calibration process. Fix was to invoke a lock on wl_ops_config() operation and to set internal flags when a scan operation is started and stopped. Please add this to the staging-linus branch. Reviewed-by: Arend van Spriel Signed-off-by: Roland Vossen Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/staging/brcm80211/sys/wl_mac80211.c | 12 ++++++++++-- drivers/staging/brcm80211/sys/wlc_mac80211.c | 13 +++++++++++++ drivers/staging/brcm80211/sys/wlc_pub.h | 2 ++ 3 files changed, 25 insertions(+), 2 deletions(-) diff --git a/drivers/staging/brcm80211/sys/wl_mac80211.c b/drivers/staging/brcm80211/sys/wl_mac80211.c index f1235884cc5d..cd8392badff0 100644 --- a/drivers/staging/brcm80211/sys/wl_mac80211.c +++ b/drivers/staging/brcm80211/sys/wl_mac80211.c @@ -263,9 +263,7 @@ ieee_set_channel(struct ieee80211_hw *hw, struct ieee80211_channel *chan, switch (type) { case NL80211_CHAN_HT20: case NL80211_CHAN_NO_HT: - WL_LOCK(wl); err = wlc_set(wl->wlc, WLC_SET_CHANNEL, chan->hw_value); - WL_UNLOCK(wl); break; case NL80211_CHAN_HT40MINUS: case NL80211_CHAN_HT40PLUS: @@ -285,6 +283,7 @@ static int wl_ops_config(struct ieee80211_hw *hw, u32 changed) int err = 0; int new_int; + WL_LOCK(wl); if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) { WL_NONE("%s: Setting listen interval to %d\n", __func__, conf->listen_interval); @@ -341,6 +340,7 @@ static int wl_ops_config(struct ieee80211_hw *hw, u32 changed) } config_out: + WL_UNLOCK(wl); return err; } @@ -459,13 +459,21 @@ wl_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set) static void wl_ops_sw_scan_start(struct ieee80211_hw *hw) { + struct wl_info *wl = hw->priv; WL_NONE("Scan Start\n"); + WL_LOCK(wl); + wlc_scan_start(wl->wlc); + WL_UNLOCK(wl); return; } static void wl_ops_sw_scan_complete(struct ieee80211_hw *hw) { + struct wl_info *wl = hw->priv; WL_NONE("Scan Complete\n"); + WL_LOCK(wl); + wlc_scan_stop(wl->wlc); + WL_UNLOCK(wl); return; } diff --git a/drivers/staging/brcm80211/sys/wlc_mac80211.c b/drivers/staging/brcm80211/sys/wlc_mac80211.c index a1303863686c..e37e8058e2b8 100644 --- a/drivers/staging/brcm80211/sys/wlc_mac80211.c +++ b/drivers/staging/brcm80211/sys/wlc_mac80211.c @@ -8461,3 +8461,16 @@ static void wlc_txq_free(struct wlc_info *wlc, struct osl_info *osh, kfree(qi); } + +/* + * Flag 'scan in progress' to withold dynamic phy calibration + */ +void wlc_scan_start(struct wlc_info *wlc) +{ + wlc_phy_hold_upd(wlc->band->pi, PHY_HOLD_FOR_SCAN, true); +} + +void wlc_scan_stop(struct wlc_info *wlc) +{ + wlc_phy_hold_upd(wlc->band->pi, PHY_HOLD_FOR_SCAN, false); +} diff --git a/drivers/staging/brcm80211/sys/wlc_pub.h b/drivers/staging/brcm80211/sys/wlc_pub.h index 146a6904a39b..aff413001b70 100644 --- a/drivers/staging/brcm80211/sys/wlc_pub.h +++ b/drivers/staging/brcm80211/sys/wlc_pub.h @@ -570,6 +570,8 @@ extern void wlc_enable_mac(struct wlc_info *wlc); extern u16 wlc_rate_shm_offset(struct wlc_info *wlc, u8 rate); extern u32 wlc_get_rspec_history(struct wlc_bsscfg *cfg); extern u32 wlc_get_current_highest_rate(struct wlc_bsscfg *cfg); +extern void wlc_scan_start(struct wlc_info *wlc); +extern void wlc_scan_stop(struct wlc_info *wlc); static inline int wlc_iovar_getuint(struct wlc_info *wlc, const char *name, uint *arg) From e0d5f4c31d4769b8574dfd8c61a1f753f7cfbc2f Mon Sep 17 00:00:00 2001 From: Alexander Stein Date: Wed, 2 Feb 2011 22:59:54 -0800 Subject: [PATCH 058/277] Input: rotary_encoder - use proper irqflags IORESOURCE_IRQ_* is wrong for irq_request, use the correct IRQF_* instead. Signed-off-by: Alexander Stein Signed-off-by: Dmitry Torokhov --- drivers/input/misc/rotary_encoder.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/input/misc/rotary_encoder.c b/drivers/input/misc/rotary_encoder.c index 1f8e0108962e..7e64d01da2be 100644 --- a/drivers/input/misc/rotary_encoder.c +++ b/drivers/input/misc/rotary_encoder.c @@ -176,7 +176,7 @@ static int __devinit rotary_encoder_probe(struct platform_device *pdev) /* request the IRQs */ err = request_irq(encoder->irq_a, &rotary_encoder_irq, - IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE, + IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, DRV_NAME, encoder); if (err) { dev_err(&pdev->dev, "unable to request IRQ %d\n", @@ -185,7 +185,7 @@ static int __devinit rotary_encoder_probe(struct platform_device *pdev) } err = request_irq(encoder->irq_b, &rotary_encoder_irq, - IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE, + IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, DRV_NAME, encoder); if (err) { dev_err(&pdev->dev, "unable to request IRQ %d\n", From 19e955415398687b79fbf1c072a84c9874b8d576 Mon Sep 17 00:00:00 2001 From: Duncan Laurie Date: Wed, 2 Feb 2011 22:59:54 -0800 Subject: [PATCH 059/277] Input: serio - clear pending rescans after sysfs driver rebind When rebinding a serio driver via sysfs drvctl interface it is possible for an interrupt to trigger after the disconnect of the existing driver and before the binding of the new driver. This will cause the serio interrupt handler to queue a rescan event which will disconnect the new driver immediately after it is attached. This change removes pending rescans from the serio event queue after processing the drvctl request but before releasing the serio mutex. Reproduction involves issuing a rebind of device port from psmouse driver to serio_raw driver while generating input to trigger interrupts. Then checking to see if the corresponding i8042/serio4/driver is correctly attached to the serio_raw driver instead of psmouse. Signed-off-by: Duncan Laurie Signed-off-by: Dmitry Torokhov --- drivers/input/serio/serio.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c index db5b0bca1a1a..7c38d1fbabf2 100644 --- a/drivers/input/serio/serio.c +++ b/drivers/input/serio/serio.c @@ -188,7 +188,8 @@ static void serio_free_event(struct serio_event *event) kfree(event); } -static void serio_remove_duplicate_events(struct serio_event *event) +static void serio_remove_duplicate_events(void *object, + enum serio_event_type type) { struct serio_event *e, *next; unsigned long flags; @@ -196,13 +197,13 @@ static void serio_remove_duplicate_events(struct serio_event *event) spin_lock_irqsave(&serio_event_lock, flags); list_for_each_entry_safe(e, next, &serio_event_list, node) { - if (event->object == e->object) { + if (object == e->object) { /* * If this event is of different type we should not * look further - we only suppress duplicate events * that were sent back-to-back. */ - if (event->type != e->type) + if (type != e->type) break; list_del_init(&e->node); @@ -245,7 +246,7 @@ static void serio_handle_event(struct work_struct *work) break; } - serio_remove_duplicate_events(event); + serio_remove_duplicate_events(event->object, event->type); serio_free_event(event); } @@ -436,10 +437,12 @@ static ssize_t serio_rebind_driver(struct device *dev, struct device_attribute * } else if (!strncmp(buf, "rescan", count)) { serio_disconnect_port(serio); serio_find_driver(serio); + serio_remove_duplicate_events(serio, SERIO_RESCAN_PORT); } else if ((drv = driver_find(buf, &serio_bus)) != NULL) { serio_disconnect_port(serio); error = serio_bind_driver(serio, to_serio_driver(drv)); put_driver(drv); + serio_remove_duplicate_events(serio, SERIO_RESCAN_PORT); } else { error = -EINVAL; } From 7ab7b5adfb923978a2cab7bd3fac9ccf7d21cc3f Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Wed, 2 Feb 2011 22:59:54 -0800 Subject: [PATCH 060/277] Input: sysrq - rework re-inject logic Internally 'disable' the filter when re-injecting Alt-SysRq instead of relying on input core to suppress delivery of injected events to the originating handler. This allows to revert commit 5fdbe44d033d059cc56c2803e6b4dbd8cb4e5e39 which causes problems with existing userspace programs trying to loopback the events via evdev. Reported-by: Kristen Carlson Accardi Cc: stable@kernel.org Signed-off-by: Dmitry Torokhov --- drivers/char/sysrq.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c index 8e0dd254eb11..81f13958e751 100644 --- a/drivers/char/sysrq.c +++ b/drivers/char/sysrq.c @@ -571,6 +571,7 @@ struct sysrq_state { unsigned int alt_use; bool active; bool need_reinject; + bool reinjecting; }; static void sysrq_reinject_alt_sysrq(struct work_struct *work) @@ -581,6 +582,10 @@ static void sysrq_reinject_alt_sysrq(struct work_struct *work) unsigned int alt_code = sysrq->alt_use; if (sysrq->need_reinject) { + /* we do not want the assignment to be reordered */ + sysrq->reinjecting = true; + mb(); + /* Simulate press and release of Alt + SysRq */ input_inject_event(handle, EV_KEY, alt_code, 1); input_inject_event(handle, EV_KEY, KEY_SYSRQ, 1); @@ -589,6 +594,9 @@ static void sysrq_reinject_alt_sysrq(struct work_struct *work) input_inject_event(handle, EV_KEY, KEY_SYSRQ, 0); input_inject_event(handle, EV_KEY, alt_code, 0); input_inject_event(handle, EV_SYN, SYN_REPORT, 1); + + mb(); + sysrq->reinjecting = false; } } @@ -599,6 +607,13 @@ static bool sysrq_filter(struct input_handle *handle, bool was_active = sysrq->active; bool suppress; + /* + * Do not filter anything if we are in the process of re-injecting + * Alt+SysRq combination. + */ + if (sysrq->reinjecting) + return false; + switch (type) { case EV_SYN: @@ -629,7 +644,7 @@ static bool sysrq_filter(struct input_handle *handle, sysrq->alt_use = sysrq->alt; /* * If nothing else will be pressed we'll need - * to * re-inject Alt-SysRq keysroke. + * to re-inject Alt-SysRq keysroke. */ sysrq->need_reinject = true; } From 9ae4345a46bdb148e32a547e89ff29563a11e127 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Wed, 2 Feb 2011 23:04:27 -0800 Subject: [PATCH 061/277] Revert "Input: do not pass injected events back to the originating handler" This reverts commit 5fdbe44d033d059cc56c2803e6b4dbd8cb4e5e39. Apparently there exist userspace programs that expect to be able to "loop back" and distribute to readers events written into /dev/input/eventX and this change made for the benefit of SysRq handler broke them. Now that SysRq uses alternative method to suppress filtering of the events it re-injects we can safely revert this change. Reported-by: Kristen Carlson Accardi Cc: stable@kernel.org Signed-off-by: Dmitry Torokhov --- drivers/input/input.c | 37 +++++++++++-------------------------- 1 file changed, 11 insertions(+), 26 deletions(-) diff --git a/drivers/input/input.c b/drivers/input/input.c index f37da09a5e4c..b8894a059f87 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -76,7 +76,6 @@ static int input_defuzz_abs_event(int value, int old_val, int fuzz) * dev->event_lock held and interrupts disabled. */ static void input_pass_event(struct input_dev *dev, - struct input_handler *src_handler, unsigned int type, unsigned int code, int value) { struct input_handler *handler; @@ -95,15 +94,6 @@ static void input_pass_event(struct input_dev *dev, continue; handler = handle->handler; - - /* - * If this is the handler that injected this - * particular event we want to skip it to avoid - * filters firing again and again. - */ - if (handler == src_handler) - continue; - if (!handler->filter) { if (filtered) break; @@ -133,7 +123,7 @@ static void input_repeat_key(unsigned long data) if (test_bit(dev->repeat_key, dev->key) && is_event_supported(dev->repeat_key, dev->keybit, KEY_MAX)) { - input_pass_event(dev, NULL, EV_KEY, dev->repeat_key, 2); + input_pass_event(dev, EV_KEY, dev->repeat_key, 2); if (dev->sync) { /* @@ -142,7 +132,7 @@ static void input_repeat_key(unsigned long data) * Otherwise assume that the driver will send * SYN_REPORT once it's done. */ - input_pass_event(dev, NULL, EV_SYN, SYN_REPORT, 1); + input_pass_event(dev, EV_SYN, SYN_REPORT, 1); } if (dev->rep[REP_PERIOD]) @@ -175,7 +165,6 @@ static void input_stop_autorepeat(struct input_dev *dev) #define INPUT_PASS_TO_ALL (INPUT_PASS_TO_HANDLERS | INPUT_PASS_TO_DEVICE) static int input_handle_abs_event(struct input_dev *dev, - struct input_handler *src_handler, unsigned int code, int *pval) { bool is_mt_event; @@ -219,15 +208,13 @@ static int input_handle_abs_event(struct input_dev *dev, /* Flush pending "slot" event */ if (is_mt_event && dev->slot != input_abs_get_val(dev, ABS_MT_SLOT)) { input_abs_set_val(dev, ABS_MT_SLOT, dev->slot); - input_pass_event(dev, src_handler, - EV_ABS, ABS_MT_SLOT, dev->slot); + input_pass_event(dev, EV_ABS, ABS_MT_SLOT, dev->slot); } return INPUT_PASS_TO_HANDLERS; } static void input_handle_event(struct input_dev *dev, - struct input_handler *src_handler, unsigned int type, unsigned int code, int value) { int disposition = INPUT_IGNORE_EVENT; @@ -280,8 +267,7 @@ static void input_handle_event(struct input_dev *dev, case EV_ABS: if (is_event_supported(code, dev->absbit, ABS_MAX)) - disposition = input_handle_abs_event(dev, src_handler, - code, &value); + disposition = input_handle_abs_event(dev, code, &value); break; @@ -339,7 +325,7 @@ static void input_handle_event(struct input_dev *dev, dev->event(dev, type, code, value); if (disposition & INPUT_PASS_TO_HANDLERS) - input_pass_event(dev, src_handler, type, code, value); + input_pass_event(dev, type, code, value); } /** @@ -368,7 +354,7 @@ void input_event(struct input_dev *dev, spin_lock_irqsave(&dev->event_lock, flags); add_input_randomness(type, code, value); - input_handle_event(dev, NULL, type, code, value); + input_handle_event(dev, type, code, value); spin_unlock_irqrestore(&dev->event_lock, flags); } } @@ -398,8 +384,7 @@ void input_inject_event(struct input_handle *handle, rcu_read_lock(); grab = rcu_dereference(dev->grab); if (!grab || grab == handle) - input_handle_event(dev, handle->handler, - type, code, value); + input_handle_event(dev, type, code, value); rcu_read_unlock(); spin_unlock_irqrestore(&dev->event_lock, flags); @@ -612,10 +597,10 @@ static void input_dev_release_keys(struct input_dev *dev) for (code = 0; code <= KEY_MAX; code++) { if (is_event_supported(code, dev->keybit, KEY_MAX) && __test_and_clear_bit(code, dev->key)) { - input_pass_event(dev, NULL, EV_KEY, code, 0); + input_pass_event(dev, EV_KEY, code, 0); } } - input_pass_event(dev, NULL, EV_SYN, SYN_REPORT, 1); + input_pass_event(dev, EV_SYN, SYN_REPORT, 1); } } @@ -890,9 +875,9 @@ int input_set_keycode(struct input_dev *dev, !is_event_supported(old_keycode, dev->keybit, KEY_MAX) && __test_and_clear_bit(old_keycode, dev->key)) { - input_pass_event(dev, NULL, EV_KEY, old_keycode, 0); + input_pass_event(dev, EV_KEY, old_keycode, 0); if (dev->sync) - input_pass_event(dev, NULL, EV_SYN, SYN_REPORT, 1); + input_pass_event(dev, EV_SYN, SYN_REPORT, 1); } out: From 8f1f745331c1b560f53c0d60e55a4f4f43f7cce5 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Thu, 3 Feb 2011 14:33:15 -0500 Subject: [PATCH 062/277] ext4: fix panic on module unload when stopping lazyinit thread https://bugzilla.kernel.org/show_bug.cgi?id=27652 If the lazyinit thread is running, the teardown function ext4_destroy_lazyinit_thread() has problems: ext4_clear_request_list(); while (ext4_li_info->li_task) { wake_up(&ext4_li_info->li_wait_daemon); wait_event(ext4_li_info->li_wait_task, ext4_li_info->li_task == NULL); } Clearing the request list will cause the thread to exit and free ext4_li_info, so then we're waiting on something which is getting freed. Fix this up by making the thread respond to kthread_stop, and exit, without the need to wait for that exit in some other homegrown way. Cc: stable@kernel.org Reported-and-Tested-by: Tao Ma Signed-off-by: Eric Sandeen Signed-off-by: "Theodore Ts'o" --- fs/ext4/super.c | 27 ++++++++++++++------------- 1 file changed, 14 insertions(+), 13 deletions(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 48ce561fafac..3d8cf2cab379 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -77,6 +77,7 @@ static struct dentry *ext4_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *data); static void ext4_destroy_lazyinit_thread(void); static void ext4_unregister_li_request(struct super_block *sb); +static void ext4_clear_request_list(void); #if !defined(CONFIG_EXT3_FS) && !defined(CONFIG_EXT3_FS_MODULE) && defined(CONFIG_EXT4_USE_FOR_EXT23) static struct file_system_type ext3_fs_type = { @@ -2716,6 +2717,8 @@ static void ext4_unregister_li_request(struct super_block *sb) mutex_unlock(&ext4_li_info->li_list_mtx); } +static struct task_struct *ext4_lazyinit_task; + /* * This is the function where ext4lazyinit thread lives. It walks * through the request list searching for next scheduled filesystem. @@ -2784,6 +2787,10 @@ cont_thread: if (time_before(jiffies, next_wakeup)) schedule(); finish_wait(&eli->li_wait_daemon, &wait); + if (kthread_should_stop()) { + ext4_clear_request_list(); + goto exit_thread; + } } exit_thread: @@ -2808,6 +2815,7 @@ exit_thread: wake_up(&eli->li_wait_task); kfree(ext4_li_info); + ext4_lazyinit_task = NULL; ext4_li_info = NULL; mutex_unlock(&ext4_li_mtx); @@ -2830,11 +2838,10 @@ static void ext4_clear_request_list(void) static int ext4_run_lazyinit_thread(void) { - struct task_struct *t; - - t = kthread_run(ext4_lazyinit_thread, ext4_li_info, "ext4lazyinit"); - if (IS_ERR(t)) { - int err = PTR_ERR(t); + ext4_lazyinit_task = kthread_run(ext4_lazyinit_thread, + ext4_li_info, "ext4lazyinit"); + if (IS_ERR(ext4_lazyinit_task)) { + int err = PTR_ERR(ext4_lazyinit_task); ext4_clear_request_list(); del_timer_sync(&ext4_li_info->li_timer); kfree(ext4_li_info); @@ -2985,16 +2992,10 @@ static void ext4_destroy_lazyinit_thread(void) * If thread exited earlier * there's nothing to be done. */ - if (!ext4_li_info) + if (!ext4_li_info || !ext4_lazyinit_task) return; - ext4_clear_request_list(); - - while (ext4_li_info->li_task) { - wake_up(&ext4_li_info->li_wait_daemon); - wait_event(ext4_li_info->li_wait_task, - ext4_li_info->li_task == NULL); - } + kthread_stop(ext4_lazyinit_task); } static int ext4_fill_super(struct super_block *sb, void *data, int silent) From 8f021222c1e2756ea4c9dde93b23e1d2a0a4ec37 Mon Sep 17 00:00:00 2001 From: Lukas Czerner Date: Thu, 3 Feb 2011 14:33:33 -0500 Subject: [PATCH 063/277] ext4: unregister features interface on module unload Ext4 features interface was not properly unregistered which led to problems while unloading/reloading ext4 module. This commit fixes that by adding proper kobject unregistration code into ext4_exit_fs() as well as fail-path of ext4_init_fs() Reported-by: Eric Sandeen Signed-off-by: Lukas Czerner Signed-off-by: "Theodore Ts'o" Cc: stable@kernel.org --- fs/ext4/super.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 3d8cf2cab379..4898cb1ff606 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -4769,7 +4769,7 @@ static struct file_system_type ext4_fs_type = { .fs_flags = FS_REQUIRES_DEV, }; -int __init ext4_init_feat_adverts(void) +static int __init ext4_init_feat_adverts(void) { struct ext4_features *ef; int ret = -ENOMEM; @@ -4793,6 +4793,13 @@ out: return ret; } +static void ext4_exit_feat_adverts(void) +{ + kobject_put(&ext4_feat->f_kobj); + wait_for_completion(&ext4_feat->f_kobj_unregister); + kfree(ext4_feat); +} + static int __init ext4_init_fs(void) { int err; @@ -4839,7 +4846,7 @@ out1: out2: ext4_exit_mballoc(); out3: - kfree(ext4_feat); + ext4_exit_feat_adverts(); remove_proc_entry("fs/ext4", NULL); kset_unregister(ext4_kset); out4: @@ -4858,6 +4865,7 @@ static void __exit ext4_exit_fs(void) destroy_inodecache(); ext4_exit_xattr(); ext4_exit_mballoc(); + ext4_exit_feat_adverts(); remove_proc_entry("fs/ext4", NULL); kset_unregister(ext4_kset); ext4_exit_system_zone(); From dd68314ccf3fb918c1fb6471817edbc60ece4b52 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Thu, 3 Feb 2011 14:33:49 -0500 Subject: [PATCH 064/277] ext4: fix up ext4 error handling Make sure we the correct cleanup happens if we die while trying to load the ext4 file system. Signed-off-by: "Theodore Ts'o" --- fs/ext4/super.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 4898cb1ff606..86b05486dc63 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -4810,13 +4810,17 @@ static int __init ext4_init_fs(void) return err; err = ext4_init_system_zone(); if (err) - goto out5; + goto out7; ext4_kset = kset_create_and_add("ext4", NULL, fs_kobj); if (!ext4_kset) - goto out4; + goto out6; ext4_proc_root = proc_mkdir("fs/ext4", NULL); + if (!ext4_proc_root) + goto out5; err = ext4_init_feat_adverts(); + if (err) + goto out4; err = ext4_init_mballoc(); if (err) @@ -4847,11 +4851,13 @@ out2: ext4_exit_mballoc(); out3: ext4_exit_feat_adverts(); - remove_proc_entry("fs/ext4", NULL); - kset_unregister(ext4_kset); out4: - ext4_exit_system_zone(); + remove_proc_entry("fs/ext4", NULL); out5: + kset_unregister(ext4_kset); +out6: + ext4_exit_system_zone(); +out7: ext4_exit_pageio(); return err; } From f9eb9dd14c2ca2a1f8d979637fb651512d16ad22 Mon Sep 17 00:00:00 2001 From: Vaibhav Bedia Date: Thu, 3 Feb 2011 16:42:25 +0530 Subject: [PATCH 065/277] asoc: davinci: da830/omap-l137: correct cpu_dai_name McASP1 is used on the DA830/OMAP-L137 platform for the codec. This is different from the DA850/OMAP-L138 platform which uses McASP0. This is fixed by adding a new snd_soc_dai_link struct. Signed-off-by: Vaibhav Bedia Acked-by: Liam Girdwood Signed-off-by: Mark Brown --- sound/soc/davinci/davinci-evm.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/sound/soc/davinci/davinci-evm.c b/sound/soc/davinci/davinci-evm.c index b36f0b39b090..fe7984221eb9 100644 --- a/sound/soc/davinci/davinci-evm.c +++ b/sound/soc/davinci/davinci-evm.c @@ -218,7 +218,19 @@ static struct snd_soc_dai_link dm6467_evm_dai[] = { .ops = &evm_spdif_ops, }, }; -static struct snd_soc_dai_link da8xx_evm_dai = { + +static struct snd_soc_dai_link da830_evm_dai = { + .name = "TLV320AIC3X", + .stream_name = "AIC3X", + .cpu_dai_name = "davinci-mcasp.1", + .codec_dai_name = "tlv320aic3x-hifi", + .codec_name = "tlv320aic3x-codec.1-0018", + .platform_name = "davinci-pcm-audio", + .init = evm_aic3x_init, + .ops = &evm_ops, +}; + +static struct snd_soc_dai_link da850_evm_dai = { .name = "TLV320AIC3X", .stream_name = "AIC3X", .cpu_dai_name= "davinci-mcasp.0", @@ -259,13 +271,13 @@ static struct snd_soc_card dm6467_snd_soc_card_evm = { static struct snd_soc_card da830_snd_soc_card = { .name = "DA830/OMAP-L137 EVM", - .dai_link = &da8xx_evm_dai, + .dai_link = &da830_evm_dai, .num_links = 1, }; static struct snd_soc_card da850_snd_soc_card = { .name = "DA850/OMAP-L138 EVM", - .dai_link = &da8xx_evm_dai, + .dai_link = &da850_evm_dai, .num_links = 1, }; From 7f94de483f4e37e14d646ad6e85a3c82f66fb487 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 3 Feb 2011 16:27:34 +0000 Subject: [PATCH 066/277] ASoC: Create an AIF1ADCDAT signal widget to match AIF2 Due to the different routing for AIF1 and AIF2 we weren't using a single widget to represent the ADCDAT signal. For consistency add one. Signed-off-by: Mark Brown Acked-by: Liam Girdwood Cc: stable@kernel.org --- sound/soc/codecs/wm8994.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c index 3351f77607b3..3e308ad97ddf 100644 --- a/sound/soc/codecs/wm8994.c +++ b/sound/soc/codecs/wm8994.c @@ -1287,9 +1287,9 @@ SND_SOC_DAPM_SUPPLY("DSPINTCLK", WM8994_CLOCKING_1, 1, 0, NULL, 0), SND_SOC_DAPM_SUPPLY("AIF1CLK", WM8994_AIF1_CLOCKING_1, 0, 0, NULL, 0), SND_SOC_DAPM_SUPPLY("AIF2CLK", WM8994_AIF2_CLOCKING_1, 0, 0, NULL, 0), -SND_SOC_DAPM_AIF_OUT("AIF1ADC1L", "AIF1 Capture", +SND_SOC_DAPM_AIF_OUT("AIF1ADC1L", NULL, 0, WM8994_POWER_MANAGEMENT_4, 9, 0), -SND_SOC_DAPM_AIF_OUT("AIF1ADC1R", "AIF1 Capture", +SND_SOC_DAPM_AIF_OUT("AIF1ADC1R", NULL, 0, WM8994_POWER_MANAGEMENT_4, 8, 0), SND_SOC_DAPM_AIF_IN_E("AIF1DAC1L", NULL, 0, WM8994_POWER_MANAGEMENT_5, 9, 0, wm8958_aif_ev, @@ -1298,9 +1298,9 @@ SND_SOC_DAPM_AIF_IN_E("AIF1DAC1R", NULL, 0, WM8994_POWER_MANAGEMENT_5, 8, 0, wm8958_aif_ev, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), -SND_SOC_DAPM_AIF_OUT("AIF1ADC2L", "AIF1 Capture", +SND_SOC_DAPM_AIF_OUT("AIF1ADC2L", NULL, 0, WM8994_POWER_MANAGEMENT_4, 11, 0), -SND_SOC_DAPM_AIF_OUT("AIF1ADC2R", "AIF1 Capture", +SND_SOC_DAPM_AIF_OUT("AIF1ADC2R", NULL, 0, WM8994_POWER_MANAGEMENT_4, 10, 0), SND_SOC_DAPM_AIF_IN_E("AIF1DAC2L", NULL, 0, WM8994_POWER_MANAGEMENT_5, 11, 0, wm8958_aif_ev, @@ -1345,6 +1345,7 @@ SND_SOC_DAPM_AIF_IN_E("AIF2DACR", NULL, 0, SND_SOC_DAPM_AIF_IN("AIF1DACDAT", "AIF1 Playback", 0, SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_AIF_IN("AIF2DACDAT", "AIF2 Playback", 0, SND_SOC_NOPM, 0, 0), +SND_SOC_DAPM_AIF_OUT("AIF1ADCDAT", "AIF1 Capture", 0, SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_AIF_OUT("AIF2ADCDAT", "AIF2 Capture", 0, SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_MUX("AIF1DAC Mux", SND_SOC_NOPM, 0, 0, &aif1dac_mux), @@ -1546,6 +1547,11 @@ static const struct snd_soc_dapm_route intercon[] = { { "AIF2DAC2R Mixer", "Left Sidetone Switch", "Left Sidetone" }, { "AIF2DAC2R Mixer", "Right Sidetone Switch", "Right Sidetone" }, + { "AIF1ADCDAT", NULL, "AIF1ADC1L" }, + { "AIF1ADCDAT", NULL, "AIF1ADC1R" }, + { "AIF1ADCDAT", NULL, "AIF1ADC2L" }, + { "AIF1ADCDAT", NULL, "AIF1ADC2R" }, + { "AIF2ADCDAT", NULL, "AIF2ADC Mux" }, /* AIF3 output */ From 6ed8f1485fc82d44ac464bc84a7dcdddd1fa096f Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 3 Feb 2011 16:27:35 +0000 Subject: [PATCH 067/277] ASoC: Improve WM8994 digital power sequencing On WM8994 revision D and earlier ensure optimal sequencing with simultaneous usage of AIF1 and AIF2 by tying the signals together so if paths through both are connected the streams are started simultaneously. Signed-off-by: Mark Brown Acked-by: Liam Girdwood Cc: stable@kernel.org --- sound/soc/codecs/wm8994.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c index 3e308ad97ddf..37b8aa8a680f 100644 --- a/sound/soc/codecs/wm8994.c +++ b/sound/soc/codecs/wm8994.c @@ -1584,6 +1584,13 @@ static const struct snd_soc_dapm_route intercon[] = { { "Right Headphone Mux", "DAC", "DAC1R" }, }; +static const struct snd_soc_dapm_route wm8994_revd_intercon[] = { + { "AIF1DACDAT", NULL, "AIF2DACDAT" }, + { "AIF2DACDAT", NULL, "AIF1DACDAT" }, + { "AIF1ADCDAT", NULL, "AIF2ADCDAT" }, + { "AIF2ADCDAT", NULL, "AIF1ADCDAT" }, +}; + static const struct snd_soc_dapm_route wm8994_intercon[] = { { "AIF2DACL", NULL, "AIF2DAC Mux" }, { "AIF2DACR", NULL, "AIF2DAC Mux" }, @@ -3135,6 +3142,11 @@ static int wm8994_codec_probe(struct snd_soc_codec *codec) case WM8994: snd_soc_dapm_add_routes(dapm, wm8994_intercon, ARRAY_SIZE(wm8994_intercon)); + + if (wm8994->revision < 4) + snd_soc_dapm_add_routes(dapm, wm8994_revd_intercon, + ARRAY_SIZE(wm8994_revd_intercon)); + break; case WM8958: snd_soc_dapm_add_routes(dapm, wm8958_intercon, From 4d048aac990d587c81fc1002e28502e6f95371ee Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Thu, 3 Feb 2011 21:14:01 +0100 Subject: [PATCH 068/277] wireless, wl1251: Fix potential NULL pointer dereference in wl1251_op_bss_info_changed() In drivers/net/wireless/wl1251/main.c:wl1251_op_bss_info_changed() we make a call to ieee80211_beacon_get() which may return NULL, but we do not check the return value before dereferencing the pointer. Signed-off-by: Jesper Juhl Signed-off-by: John W. Linville --- drivers/net/wireless/wl1251/main.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/wireless/wl1251/main.c b/drivers/net/wireless/wl1251/main.c index 012e1a4016fe..40372bac9482 100644 --- a/drivers/net/wireless/wl1251/main.c +++ b/drivers/net/wireless/wl1251/main.c @@ -1039,6 +1039,9 @@ static void wl1251_op_bss_info_changed(struct ieee80211_hw *hw, if (changed & BSS_CHANGED_BEACON) { beacon = ieee80211_beacon_get(hw, vif); + if (!beacon) + goto out_sleep; + ret = wl1251_cmd_template_set(wl, CMD_BEACON, beacon->data, beacon->len); From ac54cd2bd5b4db4f1c03392d63daf355627ea180 Mon Sep 17 00:00:00 2001 From: John Stultz Date: Wed, 2 Feb 2011 16:55:19 -0800 Subject: [PATCH 069/277] RTC: Fix rtc driver ioctl specific shortcutting Some RTC drivers enable functionality directly via their ioctl method instead of using the generic ioctl handling code. With the recent virtualization of the RTC layer, its now important that the generic layer always be used. This patch moved the rtc driver ioctl method call to after the generic ioctl processing is done. This allows hardware specific features or ioctls to still function, while relying on the generic code for handling everything else. This patch on its own may more obviously break rtc drivers that implement the alarm irq enablement via their ioctl method instead of implementing the alarm_irq_eanble method. Those drivers will be fixed in a following patch. Additionaly, those drivers are already likely to not be functioning reliably without this patch. CC: Alessandro Zummo CC: Marcelo Roberto Jimenez CC: Thomas Gleixner Reported-by: Marcelo Roberto Jimenez Tested-by: Marcelo Roberto Jimenez Signed-off-by: John Stultz --- drivers/rtc/rtc-dev.c | 21 +++++++-------------- 1 file changed, 7 insertions(+), 14 deletions(-) diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c index 212b16edafc0..37c3cc1b3dd5 100644 --- a/drivers/rtc/rtc-dev.c +++ b/drivers/rtc/rtc-dev.c @@ -154,19 +154,7 @@ static long rtc_dev_ioctl(struct file *file, if (err) goto done; - /* try the driver's ioctl interface */ - if (ops->ioctl) { - err = ops->ioctl(rtc->dev.parent, cmd, arg); - if (err != -ENOIOCTLCMD) { - mutex_unlock(&rtc->ops_lock); - return err; - } - } - - /* if the driver does not provide the ioctl interface - * or if that particular ioctl was not implemented - * (-ENOIOCTLCMD), we will try to emulate here. - * + /* * Drivers *SHOULD NOT* provide ioctl implementations * for these requests. Instead, provide methods to * support the following code, so that the RTC's main @@ -329,7 +317,12 @@ static long rtc_dev_ioctl(struct file *file, return err; default: - err = -ENOTTY; + /* Finally try the driver's ioctl interface */ + if (ops->ioctl) { + err = ops->ioctl(rtc->dev.parent, cmd, arg); + if (err == -ENOIOCTLCMD) + err = -ENOTTY; + } break; } From 16380c153a69c3784d2afaddfe0a22f353046cf6 Mon Sep 17 00:00:00 2001 From: John Stultz Date: Wed, 2 Feb 2011 17:02:41 -0800 Subject: [PATCH 070/277] RTC: Convert rtc drivers to use the alarm_irq_enable method Some rtc drivers use the ioctl method instead of the alarm_irq_enable method for enabling alarm interupts. With the new virtualized RTC rework, its important for drivers to use the alarm_irq_enable instead. This patch converts the drivers that use the AIE ioctl method to use the alarm_irq_enable method. Other ioctl cmds are left untouched. I have not been able to test or even compile most of these drivers. Any help to make sure this change is correct would be appreciated! CC: Alessandro Zummo CC: Thomas Gleixner CC: Marcelo Roberto Jimenez Reported-by: Marcelo Roberto Jimenez Tested-by: Marcelo Roberto Jimenez Signed-off-by: John Stultz --- drivers/rtc/rtc-at32ap700x.c | 19 +++++--------- drivers/rtc/rtc-at91rm9200.c | 20 +++++++++------ drivers/rtc/rtc-at91sam9.c | 20 ++++++++++----- drivers/rtc/rtc-bfin.c | 21 +++++++++------- drivers/rtc/rtc-ds1286.c | 41 +++++++++++++++++------------- drivers/rtc/rtc-ds1305.c | 43 ++++++++++--------------------- drivers/rtc/rtc-ds1307.c | 49 ++++++++++-------------------------- drivers/rtc/rtc-ds1374.c | 37 ++++++++------------------- drivers/rtc/rtc-m41t80.c | 30 ++++++---------------- drivers/rtc/rtc-m48t59.c | 21 +++++----------- drivers/rtc/rtc-mrst.c | 31 ++++------------------- drivers/rtc/rtc-mv.c | 20 ++++++--------- drivers/rtc/rtc-omap.c | 28 ++++++++++++++------- drivers/rtc/rtc-rs5c372.c | 48 ++++++++++++++++++++++++----------- drivers/rtc/rtc-sa1100.c | 22 ++++++++-------- drivers/rtc/rtc-sh.c | 11 +++++--- drivers/rtc/rtc-test.c | 21 +++------------- drivers/rtc/rtc-vr41xx.c | 38 +++++++++++++--------------- 18 files changed, 223 insertions(+), 297 deletions(-) diff --git a/drivers/rtc/rtc-at32ap700x.c b/drivers/rtc/rtc-at32ap700x.c index b2752b6e7a2f..e725d51e773d 100644 --- a/drivers/rtc/rtc-at32ap700x.c +++ b/drivers/rtc/rtc-at32ap700x.c @@ -134,36 +134,29 @@ static int at32_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) return ret; } -static int at32_rtc_ioctl(struct device *dev, unsigned int cmd, - unsigned long arg) +static int at32_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct rtc_at32ap700x *rtc = dev_get_drvdata(dev); int ret = 0; spin_lock_irq(&rtc->lock); - switch (cmd) { - case RTC_AIE_ON: + if(enabled) { if (rtc_readl(rtc, VAL) > rtc->alarm_time) { ret = -EINVAL; - break; + goto out; } rtc_writel(rtc, CTRL, rtc_readl(rtc, CTRL) | RTC_BIT(CTRL_TOPEN)); rtc_writel(rtc, ICR, RTC_BIT(ICR_TOPI)); rtc_writel(rtc, IER, RTC_BIT(IER_TOPI)); - break; - case RTC_AIE_OFF: + } else { rtc_writel(rtc, CTRL, rtc_readl(rtc, CTRL) & ~RTC_BIT(CTRL_TOPEN)); rtc_writel(rtc, IDR, RTC_BIT(IDR_TOPI)); rtc_writel(rtc, ICR, RTC_BIT(ICR_TOPI)); - break; - default: - ret = -ENOIOCTLCMD; - break; } - +out: spin_unlock_irq(&rtc->lock); return ret; @@ -195,11 +188,11 @@ static irqreturn_t at32_rtc_interrupt(int irq, void *dev_id) } static struct rtc_class_ops at32_rtc_ops = { - .ioctl = at32_rtc_ioctl, .read_time = at32_rtc_readtime, .set_time = at32_rtc_settime, .read_alarm = at32_rtc_readalarm, .set_alarm = at32_rtc_setalarm, + .alarm_irq_enable = at32_rtc_alarm_irq_enable, }; static int __init at32_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c index bc8bbca9a2e2..26d1cf5d19ae 100644 --- a/drivers/rtc/rtc-at91rm9200.c +++ b/drivers/rtc/rtc-at91rm9200.c @@ -195,13 +195,6 @@ static int at91_rtc_ioctl(struct device *dev, unsigned int cmd, /* important: scrub old status before enabling IRQs */ switch (cmd) { - case RTC_AIE_OFF: /* alarm off */ - at91_sys_write(AT91_RTC_IDR, AT91_RTC_ALARM); - break; - case RTC_AIE_ON: /* alarm on */ - at91_sys_write(AT91_RTC_SCCR, AT91_RTC_ALARM); - at91_sys_write(AT91_RTC_IER, AT91_RTC_ALARM); - break; case RTC_UIE_OFF: /* update off */ at91_sys_write(AT91_RTC_IDR, AT91_RTC_SECEV); break; @@ -217,6 +210,18 @@ static int at91_rtc_ioctl(struct device *dev, unsigned int cmd, return ret; } +static int at91_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) +{ + pr_debug("%s(): cmd=%08x\n", __func__, enabled); + + if (enabled) { + at91_sys_write(AT91_RTC_SCCR, AT91_RTC_ALARM); + at91_sys_write(AT91_RTC_IER, AT91_RTC_ALARM); + } else + at91_sys_write(AT91_RTC_IDR, AT91_RTC_ALARM); + + return 0; +} /* * Provide additional RTC information in /proc/driver/rtc */ @@ -270,6 +275,7 @@ static const struct rtc_class_ops at91_rtc_ops = { .read_alarm = at91_rtc_readalarm, .set_alarm = at91_rtc_setalarm, .proc = at91_rtc_proc, + .alarm_irq_enable = at91_rtc_alarm_irq_enable, }; /* diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c index f677e0710ca1..c36749e4c926 100644 --- a/drivers/rtc/rtc-at91sam9.c +++ b/drivers/rtc/rtc-at91sam9.c @@ -229,12 +229,6 @@ static int at91_rtc_ioctl(struct device *dev, unsigned int cmd, dev_dbg(dev, "ioctl: cmd=%08x, arg=%08lx, mr %08x\n", cmd, arg, mr); switch (cmd) { - case RTC_AIE_OFF: /* alarm off */ - rtt_writel(rtc, MR, mr & ~AT91_RTT_ALMIEN); - break; - case RTC_AIE_ON: /* alarm on */ - rtt_writel(rtc, MR, mr | AT91_RTT_ALMIEN); - break; case RTC_UIE_OFF: /* update off */ rtt_writel(rtc, MR, mr & ~AT91_RTT_RTTINCIEN); break; @@ -249,6 +243,19 @@ static int at91_rtc_ioctl(struct device *dev, unsigned int cmd, return ret; } +static int at91_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) +{ + struct sam9_rtc *rtc = dev_get_drvdata(dev); + u32 mr = rtt_readl(rtc, MR); + + dev_dbg(dev, "alarm_irq_enable: enabled=%08x, mr %08x\n", enabled, mr); + if (enabled) + rtt_writel(rtc, MR, mr | AT91_RTT_ALMIEN); + else + rtt_writel(rtc, MR, mr & ~AT91_RTT_ALMIEN); + return 0; +} + /* * Provide additional RTC information in /proc/driver/rtc */ @@ -302,6 +309,7 @@ static const struct rtc_class_ops at91_rtc_ops = { .read_alarm = at91_rtc_readalarm, .set_alarm = at91_rtc_setalarm, .proc = at91_rtc_proc, + .alarm_irq_enabled = at91_rtc_alarm_irq_enable, }; /* diff --git a/drivers/rtc/rtc-bfin.c b/drivers/rtc/rtc-bfin.c index b4b6087f2234..17971d93354d 100644 --- a/drivers/rtc/rtc-bfin.c +++ b/drivers/rtc/rtc-bfin.c @@ -259,15 +259,6 @@ static int bfin_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long ar bfin_rtc_int_clear(~RTC_ISTAT_SEC); break; - case RTC_AIE_ON: - dev_dbg_stamp(dev); - bfin_rtc_int_set_alarm(rtc); - break; - case RTC_AIE_OFF: - dev_dbg_stamp(dev); - bfin_rtc_int_clear(~(RTC_ISTAT_ALARM | RTC_ISTAT_ALARM_DAY)); - break; - default: dev_dbg_stamp(dev); ret = -ENOIOCTLCMD; @@ -276,6 +267,17 @@ static int bfin_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long ar return ret; } +static int bfin_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) +{ + struct bfin_rtc *rtc = dev_get_drvdata(dev); + + dev_dbg_stamp(dev); + if (enabled) + bfin_rtc_int_set_alarm(rtc); + else + bfin_rtc_int_clear(~(RTC_ISTAT_ALARM | RTC_ISTAT_ALARM_DAY)); +} + static int bfin_rtc_read_time(struct device *dev, struct rtc_time *tm) { struct bfin_rtc *rtc = dev_get_drvdata(dev); @@ -362,6 +364,7 @@ static struct rtc_class_ops bfin_rtc_ops = { .read_alarm = bfin_rtc_read_alarm, .set_alarm = bfin_rtc_set_alarm, .proc = bfin_rtc_proc, + .alarm_irq_enable = bfin_rtc_alarm_irq_enable, }; static int __devinit bfin_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-ds1286.c b/drivers/rtc/rtc-ds1286.c index bf430f9091ed..60ce69600828 100644 --- a/drivers/rtc/rtc-ds1286.c +++ b/drivers/rtc/rtc-ds1286.c @@ -40,6 +40,26 @@ static inline void ds1286_rtc_write(struct ds1286_priv *priv, u8 data, int reg) __raw_writel(data, &priv->rtcregs[reg]); } + +static int ds1286_alarm_irq_enable(struct device *dev, unsigned int enabled) +{ + struct ds1286_priv *priv = dev_get_drvdata(dev); + unsigned long flags; + unsigned char val; + + /* Allow or mask alarm interrupts */ + spin_lock_irqsave(&priv->lock, flags); + val = ds1286_rtc_read(priv, RTC_CMD); + if (enabled) + val &= ~RTC_TDM; + else + val |= RTC_TDM; + ds1286_rtc_write(priv, val, RTC_CMD); + spin_unlock_irqrestore(&priv->lock, flags); + + return 0; +} + #ifdef CONFIG_RTC_INTF_DEV static int ds1286_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) @@ -49,22 +69,6 @@ static int ds1286_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) unsigned char val; switch (cmd) { - case RTC_AIE_OFF: - /* Mask alarm int. enab. bit */ - spin_lock_irqsave(&priv->lock, flags); - val = ds1286_rtc_read(priv, RTC_CMD); - val |= RTC_TDM; - ds1286_rtc_write(priv, val, RTC_CMD); - spin_unlock_irqrestore(&priv->lock, flags); - break; - case RTC_AIE_ON: - /* Allow alarm interrupts. */ - spin_lock_irqsave(&priv->lock, flags); - val = ds1286_rtc_read(priv, RTC_CMD); - val &= ~RTC_TDM; - ds1286_rtc_write(priv, val, RTC_CMD); - spin_unlock_irqrestore(&priv->lock, flags); - break; case RTC_WIE_OFF: /* Mask watchdog int. enab. bit */ spin_lock_irqsave(&priv->lock, flags); @@ -316,12 +320,13 @@ static int ds1286_set_alarm(struct device *dev, struct rtc_wkalrm *alm) } static const struct rtc_class_ops ds1286_ops = { - .ioctl = ds1286_ioctl, - .proc = ds1286_proc, + .ioctl = ds1286_ioctl, + .proc = ds1286_proc, .read_time = ds1286_read_time, .set_time = ds1286_set_time, .read_alarm = ds1286_read_alarm, .set_alarm = ds1286_set_alarm, + .alarm_irq_enable = ds1286_alarm_irq_enable, }; static int __devinit ds1286_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-ds1305.c b/drivers/rtc/rtc-ds1305.c index 077af1d7b9e4..57fbcc149ba7 100644 --- a/drivers/rtc/rtc-ds1305.c +++ b/drivers/rtc/rtc-ds1305.c @@ -139,49 +139,32 @@ static u8 hour2bcd(bool hr12, int hour) * Interface to RTC framework */ -#ifdef CONFIG_RTC_INTF_DEV - -/* - * Context: caller holds rtc->ops_lock (to protect ds1305->ctrl) - */ -static int ds1305_ioctl(struct device *dev, unsigned cmd, unsigned long arg) +static int ds1305_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct ds1305 *ds1305 = dev_get_drvdata(dev); u8 buf[2]; - int status = -ENOIOCTLCMD; + long err = -EINVAL; buf[0] = DS1305_WRITE | DS1305_CONTROL; buf[1] = ds1305->ctrl[0]; - switch (cmd) { - case RTC_AIE_OFF: - status = 0; - if (!(buf[1] & DS1305_AEI0)) - goto done; - buf[1] &= ~DS1305_AEI0; - break; - - case RTC_AIE_ON: - status = 0; + if (enabled) { if (ds1305->ctrl[0] & DS1305_AEI0) goto done; buf[1] |= DS1305_AEI0; - break; + } else { + if (!(buf[1] & DS1305_AEI0)) + goto done; + buf[1] &= ~DS1305_AEI0; } - if (status == 0) { - status = spi_write_then_read(ds1305->spi, buf, sizeof buf, - NULL, 0); - if (status >= 0) - ds1305->ctrl[0] = buf[1]; - } - + err = spi_write_then_read(ds1305->spi, buf, sizeof buf, NULL, 0); + if (err >= 0) + ds1305->ctrl[0] = buf[1]; done: - return status; + return err; + } -#else -#define ds1305_ioctl NULL -#endif /* * Get/set of date and time is pretty normal. @@ -460,12 +443,12 @@ done: #endif static const struct rtc_class_ops ds1305_ops = { - .ioctl = ds1305_ioctl, .read_time = ds1305_get_time, .set_time = ds1305_set_time, .read_alarm = ds1305_get_alarm, .set_alarm = ds1305_set_alarm, .proc = ds1305_proc, + .alarm_irq_enable = ds1305_alarm_irq_enable, }; static void ds1305_work(struct work_struct *work) diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c index 0d559b6416dd..4724ba3acf1a 100644 --- a/drivers/rtc/rtc-ds1307.c +++ b/drivers/rtc/rtc-ds1307.c @@ -495,50 +495,27 @@ static int ds1337_set_alarm(struct device *dev, struct rtc_wkalrm *t) return 0; } -static int ds1307_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) +static int ds1307_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct i2c_client *client = to_i2c_client(dev); struct ds1307 *ds1307 = i2c_get_clientdata(client); int ret; - switch (cmd) { - case RTC_AIE_OFF: - if (!test_bit(HAS_ALARM, &ds1307->flags)) - return -ENOTTY; + if (!test_bit(HAS_ALARM, &ds1307->flags)) + return -ENOTTY; - ret = i2c_smbus_read_byte_data(client, DS1337_REG_CONTROL); - if (ret < 0) - return ret; + ret = i2c_smbus_read_byte_data(client, DS1337_REG_CONTROL); + if (ret < 0) + return ret; + if (enabled) + ret |= DS1337_BIT_A1IE; + else ret &= ~DS1337_BIT_A1IE; - ret = i2c_smbus_write_byte_data(client, - DS1337_REG_CONTROL, ret); - if (ret < 0) - return ret; - - break; - - case RTC_AIE_ON: - if (!test_bit(HAS_ALARM, &ds1307->flags)) - return -ENOTTY; - - ret = i2c_smbus_read_byte_data(client, DS1337_REG_CONTROL); - if (ret < 0) - return ret; - - ret |= DS1337_BIT_A1IE; - - ret = i2c_smbus_write_byte_data(client, - DS1337_REG_CONTROL, ret); - if (ret < 0) - return ret; - - break; - - default: - return -ENOIOCTLCMD; - } + ret = i2c_smbus_write_byte_data(client, DS1337_REG_CONTROL, ret); + if (ret < 0) + return ret; return 0; } @@ -548,7 +525,7 @@ static const struct rtc_class_ops ds13xx_rtc_ops = { .set_time = ds1307_set_time, .read_alarm = ds1337_read_alarm, .set_alarm = ds1337_set_alarm, - .ioctl = ds1307_ioctl, + .alarm_irq_enable = ds1307_alarm_irq_enable, }; /*----------------------------------------------------------------------*/ diff --git a/drivers/rtc/rtc-ds1374.c b/drivers/rtc/rtc-ds1374.c index 47fb6357c346..d834a63ec4b0 100644 --- a/drivers/rtc/rtc-ds1374.c +++ b/drivers/rtc/rtc-ds1374.c @@ -307,42 +307,25 @@ unlock: mutex_unlock(&ds1374->mutex); } -static int ds1374_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) +static int ds1374_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct i2c_client *client = to_i2c_client(dev); struct ds1374 *ds1374 = i2c_get_clientdata(client); - int ret = -ENOIOCTLCMD; + int ret; mutex_lock(&ds1374->mutex); - switch (cmd) { - case RTC_AIE_OFF: - ret = i2c_smbus_read_byte_data(client, DS1374_REG_CR); - if (ret < 0) - goto out; - - ret &= ~DS1374_REG_CR_WACE; - - ret = i2c_smbus_write_byte_data(client, DS1374_REG_CR, ret); - if (ret < 0) - goto out; - - break; - - case RTC_AIE_ON: - ret = i2c_smbus_read_byte_data(client, DS1374_REG_CR); - if (ret < 0) - goto out; + ret = i2c_smbus_read_byte_data(client, DS1374_REG_CR); + if (ret < 0) + goto out; + if (enabled) { ret |= DS1374_REG_CR_WACE | DS1374_REG_CR_AIE; ret &= ~DS1374_REG_CR_WDALM; - - ret = i2c_smbus_write_byte_data(client, DS1374_REG_CR, ret); - if (ret < 0) - goto out; - - break; + } else { + ret &= ~DS1374_REG_CR_WACE; } + ret = i2c_smbus_write_byte_data(client, DS1374_REG_CR, ret); out: mutex_unlock(&ds1374->mutex); @@ -354,7 +337,7 @@ static const struct rtc_class_ops ds1374_rtc_ops = { .set_time = ds1374_set_time, .read_alarm = ds1374_read_alarm, .set_alarm = ds1374_set_alarm, - .ioctl = ds1374_ioctl, + .alarm_irq_enable = ds1374_alarm_irq_enable, }; static int ds1374_probe(struct i2c_client *client, diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c index 5a8daa358066..69fe664a2228 100644 --- a/drivers/rtc/rtc-m41t80.c +++ b/drivers/rtc/rtc-m41t80.c @@ -213,41 +213,27 @@ static int m41t80_rtc_set_time(struct device *dev, struct rtc_time *tm) return m41t80_set_datetime(to_i2c_client(dev), tm); } -#if defined(CONFIG_RTC_INTF_DEV) || defined(CONFIG_RTC_INTF_DEV_MODULE) -static int -m41t80_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) +static int m41t80_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct i2c_client *client = to_i2c_client(dev); int rc; - switch (cmd) { - case RTC_AIE_OFF: - case RTC_AIE_ON: - break; - default: - return -ENOIOCTLCMD; - } - rc = i2c_smbus_read_byte_data(client, M41T80_REG_ALARM_MON); if (rc < 0) goto err; - switch (cmd) { - case RTC_AIE_OFF: - rc &= ~M41T80_ALMON_AFE; - break; - case RTC_AIE_ON: + + if (enabled) rc |= M41T80_ALMON_AFE; - break; - } + else + rc &= ~M41T80_ALMON_AFE; + if (i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON, rc) < 0) goto err; + return 0; err: return -EIO; } -#else -#define m41t80_rtc_ioctl NULL -#endif static int m41t80_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *t) { @@ -374,7 +360,7 @@ static struct rtc_class_ops m41t80_rtc_ops = { .read_alarm = m41t80_rtc_read_alarm, .set_alarm = m41t80_rtc_set_alarm, .proc = m41t80_rtc_proc, - .ioctl = m41t80_rtc_ioctl, + .alarm_irq_enable = m41t80_rtc_alarm_irq_enable, }; #if defined(CONFIG_RTC_INTF_SYSFS) || defined(CONFIG_RTC_INTF_SYSFS_MODULE) diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c index a99a0b554eb8..3978f4caf724 100644 --- a/drivers/rtc/rtc-m48t59.c +++ b/drivers/rtc/rtc-m48t59.c @@ -263,30 +263,21 @@ static int m48t59_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) /* * Handle commands from user-space */ -static int m48t59_rtc_ioctl(struct device *dev, unsigned int cmd, - unsigned long arg) +static int m48t59_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct platform_device *pdev = to_platform_device(dev); struct m48t59_plat_data *pdata = pdev->dev.platform_data; struct m48t59_private *m48t59 = platform_get_drvdata(pdev); unsigned long flags; - int ret = 0; spin_lock_irqsave(&m48t59->lock, flags); - switch (cmd) { - case RTC_AIE_OFF: /* alarm interrupt off */ - M48T59_WRITE(0x00, M48T59_INTR); - break; - case RTC_AIE_ON: /* alarm interrupt on */ + if (enabled) M48T59_WRITE(M48T59_INTR_AFE, M48T59_INTR); - break; - default: - ret = -ENOIOCTLCMD; - break; - } + else + M48T59_WRITE(0x00, M48T59_INTR); spin_unlock_irqrestore(&m48t59->lock, flags); - return ret; + return 0; } static int m48t59_rtc_proc(struct device *dev, struct seq_file *seq) @@ -330,12 +321,12 @@ static irqreturn_t m48t59_rtc_interrupt(int irq, void *dev_id) } static const struct rtc_class_ops m48t59_rtc_ops = { - .ioctl = m48t59_rtc_ioctl, .read_time = m48t59_rtc_read_time, .set_time = m48t59_rtc_set_time, .read_alarm = m48t59_rtc_readalarm, .set_alarm = m48t59_rtc_setalarm, .proc = m48t59_rtc_proc, + .alarm_irq_enable = m48t59_rtc_alarm_irq_enable, }; static const struct rtc_class_ops m48t02_rtc_ops = { diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c index bcd0cf63eb16..1db62db8469d 100644 --- a/drivers/rtc/rtc-mrst.c +++ b/drivers/rtc/rtc-mrst.c @@ -255,42 +255,21 @@ static int mrst_irq_set_state(struct device *dev, int enabled) return 0; } -#if defined(CONFIG_RTC_INTF_DEV) || defined(CONFIG_RTC_INTF_DEV_MODULE) - /* Currently, the vRTC doesn't support UIE ON/OFF */ -static int -mrst_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) +static int mrst_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct mrst_rtc *mrst = dev_get_drvdata(dev); unsigned long flags; - switch (cmd) { - case RTC_AIE_OFF: - case RTC_AIE_ON: - if (!mrst->irq) - return -EINVAL; - break; - default: - /* PIE ON/OFF is handled by mrst_irq_set_state() */ - return -ENOIOCTLCMD; - } - spin_lock_irqsave(&rtc_lock, flags); - switch (cmd) { - case RTC_AIE_OFF: /* alarm off */ - mrst_irq_disable(mrst, RTC_AIE); - break; - case RTC_AIE_ON: /* alarm on */ + if (enabled) mrst_irq_enable(mrst, RTC_AIE); - break; - } + else + mrst_irq_disable(mrst, RTC_AIE); spin_unlock_irqrestore(&rtc_lock, flags); return 0; } -#else -#define mrst_rtc_ioctl NULL -#endif #if defined(CONFIG_RTC_INTF_PROC) || defined(CONFIG_RTC_INTF_PROC_MODULE) @@ -317,13 +296,13 @@ static int mrst_procfs(struct device *dev, struct seq_file *seq) #endif static const struct rtc_class_ops mrst_rtc_ops = { - .ioctl = mrst_rtc_ioctl, .read_time = mrst_read_time, .set_time = mrst_set_time, .read_alarm = mrst_read_alarm, .set_alarm = mrst_set_alarm, .proc = mrst_procfs, .irq_set_state = mrst_irq_set_state, + .alarm_irq_enable = mrst_rtc_alarm_irq_enable, }; static struct mrst_rtc mrst_rtc; diff --git a/drivers/rtc/rtc-mv.c b/drivers/rtc/rtc-mv.c index bcca47298554..60627a764514 100644 --- a/drivers/rtc/rtc-mv.c +++ b/drivers/rtc/rtc-mv.c @@ -169,25 +169,19 @@ static int mv_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm) return 0; } -static int mv_rtc_ioctl(struct device *dev, unsigned int cmd, - unsigned long arg) +static int mv_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct platform_device *pdev = to_platform_device(dev); struct rtc_plat_data *pdata = platform_get_drvdata(pdev); void __iomem *ioaddr = pdata->ioaddr; if (pdata->irq < 0) - return -ENOIOCTLCMD; /* fall back into rtc-dev's emulation */ - switch (cmd) { - case RTC_AIE_OFF: - writel(0, ioaddr + RTC_ALARM_INTERRUPT_MASK_REG_OFFS); - break; - case RTC_AIE_ON: + return -EINVAL; /* fall back into rtc-dev's emulation */ + + if (enabled) writel(1, ioaddr + RTC_ALARM_INTERRUPT_MASK_REG_OFFS); - break; - default: - return -ENOIOCTLCMD; - } + else + writel(0, ioaddr + RTC_ALARM_INTERRUPT_MASK_REG_OFFS); return 0; } @@ -216,7 +210,7 @@ static const struct rtc_class_ops mv_rtc_alarm_ops = { .set_time = mv_rtc_set_time, .read_alarm = mv_rtc_read_alarm, .set_alarm = mv_rtc_set_alarm, - .ioctl = mv_rtc_ioctl, + .alarm_irq_enable = mv_rtc_alarm_irq_enable, }; static int __devinit mv_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c index e72b523c79a5..b4dbf3a319b3 100644 --- a/drivers/rtc/rtc-omap.c +++ b/drivers/rtc/rtc-omap.c @@ -143,8 +143,6 @@ omap_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) u8 reg; switch (cmd) { - case RTC_AIE_OFF: - case RTC_AIE_ON: case RTC_UIE_OFF: case RTC_UIE_ON: break; @@ -156,13 +154,6 @@ omap_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) rtc_wait_not_busy(); reg = rtc_read(OMAP_RTC_INTERRUPTS_REG); switch (cmd) { - /* AIE = Alarm Interrupt Enable */ - case RTC_AIE_OFF: - reg &= ~OMAP_RTC_INTERRUPTS_IT_ALARM; - break; - case RTC_AIE_ON: - reg |= OMAP_RTC_INTERRUPTS_IT_ALARM; - break; /* UIE = Update Interrupt Enable (1/second) */ case RTC_UIE_OFF: reg &= ~OMAP_RTC_INTERRUPTS_IT_TIMER; @@ -182,6 +173,24 @@ omap_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) #define omap_rtc_ioctl NULL #endif +static int omap_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) +{ + u8 reg; + + local_irq_disable(); + rtc_wait_not_busy(); + reg = rtc_read(OMAP_RTC_INTERRUPTS_REG); + if (enabled) + reg |= OMAP_RTC_INTERRUPTS_IT_ALARM; + else + reg &= ~OMAP_RTC_INTERRUPTS_IT_ALARM; + rtc_wait_not_busy(); + rtc_write(reg, OMAP_RTC_INTERRUPTS_REG); + local_irq_enable(); + + return 0; +} + /* this hardware doesn't support "don't care" alarm fields */ static int tm2bcd(struct rtc_time *tm) { @@ -309,6 +318,7 @@ static struct rtc_class_ops omap_rtc_ops = { .set_time = omap_rtc_set_time, .read_alarm = omap_rtc_read_alarm, .set_alarm = omap_rtc_set_alarm, + .alarm_irq_enable = omap_rtc_alarm_irq_enable, }; static int omap_rtc_alarm; diff --git a/drivers/rtc/rtc-rs5c372.c b/drivers/rtc/rtc-rs5c372.c index dd14e202c2c8..6aaa1550e3b1 100644 --- a/drivers/rtc/rtc-rs5c372.c +++ b/drivers/rtc/rtc-rs5c372.c @@ -299,14 +299,6 @@ rs5c_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) if (rs5c->type == rtc_rs5c372a && (buf & RS5C372A_CTRL1_SL1)) return -ENOIOCTLCMD; - case RTC_AIE_OFF: - case RTC_AIE_ON: - /* these irq management calls only make sense for chips - * which are wired up to an IRQ. - */ - if (!rs5c->has_irq) - return -ENOIOCTLCMD; - break; default: return -ENOIOCTLCMD; } @@ -317,12 +309,6 @@ rs5c_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) addr = RS5C_ADDR(RS5C_REG_CTRL1); switch (cmd) { - case RTC_AIE_OFF: /* alarm off */ - buf &= ~RS5C_CTRL1_AALE; - break; - case RTC_AIE_ON: /* alarm on */ - buf |= RS5C_CTRL1_AALE; - break; case RTC_UIE_OFF: /* update off */ buf &= ~RS5C_CTRL1_CT_MASK; break; @@ -347,6 +333,39 @@ rs5c_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) #endif +static int rs5c_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) +{ + struct i2c_client *client = to_i2c_client(dev); + struct rs5c372 *rs5c = i2c_get_clientdata(client); + unsigned char buf; + int status, addr; + + buf = rs5c->regs[RS5C_REG_CTRL1]; + + if (!rs5c->has_irq) + return -EINVAL; + + status = rs5c_get_regs(rs5c); + if (status < 0) + return status; + + addr = RS5C_ADDR(RS5C_REG_CTRL1); + if (enabled) + buf |= RS5C_CTRL1_AALE; + else + buf &= ~RS5C_CTRL1_AALE; + + if (i2c_smbus_write_byte_data(client, addr, buf) < 0) { + printk(KERN_WARNING "%s: can't update alarm\n", + rs5c->rtc->name); + status = -EIO; + } else + rs5c->regs[RS5C_REG_CTRL1] = buf; + + return status; +} + + /* NOTE: Since RTC_WKALM_{RD,SET} were originally defined for EFI, * which only exposes a polled programming interface; and since * these calls map directly to those EFI requests; we don't demand @@ -466,6 +485,7 @@ static const struct rtc_class_ops rs5c372_rtc_ops = { .set_time = rs5c372_rtc_set_time, .read_alarm = rs5c_read_alarm, .set_alarm = rs5c_set_alarm, + .alarm_irq_enable = rs5c_rtc_alarm_irq_enable, }; #if defined(CONFIG_RTC_INTF_SYSFS) || defined(CONFIG_RTC_INTF_SYSFS_MODULE) diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c index 88ea52b8647a..5dfe5ffcb0d3 100644 --- a/drivers/rtc/rtc-sa1100.c +++ b/drivers/rtc/rtc-sa1100.c @@ -314,16 +314,6 @@ static int sa1100_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) { switch (cmd) { - case RTC_AIE_OFF: - spin_lock_irq(&sa1100_rtc_lock); - RTSR &= ~RTSR_ALE; - spin_unlock_irq(&sa1100_rtc_lock); - return 0; - case RTC_AIE_ON: - spin_lock_irq(&sa1100_rtc_lock); - RTSR |= RTSR_ALE; - spin_unlock_irq(&sa1100_rtc_lock); - return 0; case RTC_UIE_OFF: spin_lock_irq(&sa1100_rtc_lock); RTSR &= ~RTSR_HZE; @@ -338,6 +328,17 @@ static int sa1100_rtc_ioctl(struct device *dev, unsigned int cmd, return -ENOIOCTLCMD; } +static int sa1100_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) +{ + spin_lock_irq(&sa1100_rtc_lock); + if (enabled) + RTSR |= RTSR_ALE; + else + RTSR &= ~RTSR_ALE; + spin_unlock_irq(&sa1100_rtc_lock); + return 0; +} + static int sa1100_rtc_read_time(struct device *dev, struct rtc_time *tm) { rtc_time_to_tm(RCNR, tm); @@ -410,6 +411,7 @@ static const struct rtc_class_ops sa1100_rtc_ops = { .proc = sa1100_rtc_proc, .irq_set_freq = sa1100_irq_set_freq, .irq_set_state = sa1100_irq_set_state, + .alarm_irq_enable = sa1100_rtc_alarm_irq_enable, }; static int sa1100_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c index 06e41ed93230..93314a9e7fa9 100644 --- a/drivers/rtc/rtc-sh.c +++ b/drivers/rtc/rtc-sh.c @@ -350,10 +350,6 @@ static int sh_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) unsigned int ret = 0; switch (cmd) { - case RTC_AIE_OFF: - case RTC_AIE_ON: - sh_rtc_setaie(dev, cmd == RTC_AIE_ON); - break; case RTC_UIE_OFF: rtc->periodic_freq &= ~PF_OXS; sh_rtc_setcie(dev, 0); @@ -369,6 +365,12 @@ static int sh_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) return ret; } +static int sh_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) +{ + sh_rtc_setaie(dev, enabled); + return 0; +} + static int sh_rtc_read_time(struct device *dev, struct rtc_time *tm) { struct platform_device *pdev = to_platform_device(dev); @@ -604,6 +606,7 @@ static struct rtc_class_ops sh_rtc_ops = { .irq_set_state = sh_rtc_irq_set_state, .irq_set_freq = sh_rtc_irq_set_freq, .proc = sh_rtc_proc, + .alarm_irq_enable = sh_rtc_alarm_irq_enable, }; static int __init sh_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-test.c b/drivers/rtc/rtc-test.c index 51725f7755b0..a82d6fe97076 100644 --- a/drivers/rtc/rtc-test.c +++ b/drivers/rtc/rtc-test.c @@ -50,24 +50,9 @@ static int test_rtc_proc(struct device *dev, struct seq_file *seq) return 0; } -static int test_rtc_ioctl(struct device *dev, unsigned int cmd, - unsigned long arg) +static int test_rtc_alarm_irq_enable(struct device *dev, unsigned int enable) { - /* We do support interrupts, they're generated - * using the sysfs interface. - */ - switch (cmd) { - case RTC_PIE_ON: - case RTC_PIE_OFF: - case RTC_UIE_ON: - case RTC_UIE_OFF: - case RTC_AIE_ON: - case RTC_AIE_OFF: - return 0; - - default: - return -ENOIOCTLCMD; - } + return 0; } static const struct rtc_class_ops test_rtc_ops = { @@ -76,7 +61,7 @@ static const struct rtc_class_ops test_rtc_ops = { .read_alarm = test_rtc_read_alarm, .set_alarm = test_rtc_set_alarm, .set_mmss = test_rtc_set_mmss, - .ioctl = test_rtc_ioctl, + .alarm_irq_enable = test_rtc_alarm_irq_enable, }; static ssize_t test_irq_show(struct device *dev, diff --git a/drivers/rtc/rtc-vr41xx.c b/drivers/rtc/rtc-vr41xx.c index c3244244e8cf..769190ac6d11 100644 --- a/drivers/rtc/rtc-vr41xx.c +++ b/drivers/rtc/rtc-vr41xx.c @@ -240,26 +240,6 @@ static int vr41xx_rtc_irq_set_state(struct device *dev, int enabled) static int vr41xx_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) { switch (cmd) { - case RTC_AIE_ON: - spin_lock_irq(&rtc_lock); - - if (!alarm_enabled) { - enable_irq(aie_irq); - alarm_enabled = 1; - } - - spin_unlock_irq(&rtc_lock); - break; - case RTC_AIE_OFF: - spin_lock_irq(&rtc_lock); - - if (alarm_enabled) { - disable_irq(aie_irq); - alarm_enabled = 0; - } - - spin_unlock_irq(&rtc_lock); - break; case RTC_EPOCH_READ: return put_user(epoch, (unsigned long __user *)arg); case RTC_EPOCH_SET: @@ -275,6 +255,24 @@ static int vr41xx_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long return 0; } +static int vr41xx_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) +{ + spin_lock_irq(&rtc_lock); + if (enabled) { + if (!alarm_enabled) { + enable_irq(aie_irq); + alarm_enabled = 1; + } + } else { + if (alarm_enabled) { + disable_irq(aie_irq); + alarm_enabled = 0; + } + } + spin_unlock_irq(&rtc_lock); + return 0; +} + static irqreturn_t elapsedtime_interrupt(int irq, void *dev_id) { struct platform_device *pdev = (struct platform_device *)dev_id; From d8ce1481ee8770ef2314eb7984a2228dbf64ad06 Mon Sep 17 00:00:00 2001 From: John Stultz Date: Wed, 2 Feb 2011 17:53:42 -0800 Subject: [PATCH 071/277] RTC: Fix minor compile warning Two rtc drivers return values from void functions. This patch fixes that. CC: Thomas Gleixner CC: Alessandro Zummo CC: Marcelo Roberto Jimenez Signed-off-by: John Stultz --- drivers/rtc/rtc-msm6242.c | 2 +- drivers/rtc/rtc-rp5c01.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/rtc/rtc-msm6242.c b/drivers/rtc/rtc-msm6242.c index b2fff0ca49f8..67820626e18f 100644 --- a/drivers/rtc/rtc-msm6242.c +++ b/drivers/rtc/rtc-msm6242.c @@ -82,7 +82,7 @@ static inline unsigned int msm6242_read(struct msm6242_priv *priv, static inline void msm6242_write(struct msm6242_priv *priv, unsigned int val, unsigned int reg) { - return __raw_writel(val, &priv->regs[reg]); + __raw_writel(val, &priv->regs[reg]); } static inline void msm6242_set(struct msm6242_priv *priv, unsigned int val, diff --git a/drivers/rtc/rtc-rp5c01.c b/drivers/rtc/rtc-rp5c01.c index 36eb66184461..694da39b6dd2 100644 --- a/drivers/rtc/rtc-rp5c01.c +++ b/drivers/rtc/rtc-rp5c01.c @@ -76,7 +76,7 @@ static inline unsigned int rp5c01_read(struct rp5c01_priv *priv, static inline void rp5c01_write(struct rp5c01_priv *priv, unsigned int val, unsigned int reg) { - return __raw_writel(val, &priv->regs[reg]); + __raw_writel(val, &priv->regs[reg]); } static void rp5c01_lock(struct rp5c01_priv *priv) From 51df0acc3d76cf41d5496ef044cc5717ab5c7f71 Mon Sep 17 00:00:00 2001 From: Amit Shah Date: Tue, 1 Feb 2011 09:31:25 +0530 Subject: [PATCH 072/277] virtio: console: Move file back to drivers/char/ Commit 728674a7e466628df2aeec6d11a2ae1ef968fb67 moved virtio_console.c to drivers/tty/hvc/ under the perception of this being an hvc driver. It was such once, but these days it has generic communication capabilities as well, so move it to drivers/char/. In the future, the hvc part from this file can be split off and moved under drivers/tty/hvc/. Signed-off-by: Amit Shah CC: Rusty Russell Acked-by: Arnd Bergmann Signed-off-by: Greg Kroah-Hartman --- drivers/char/Makefile | 1 + drivers/{tty/hvc => char}/virtio_console.c | 2 +- drivers/tty/hvc/Makefile | 1 - 3 files changed, 2 insertions(+), 2 deletions(-) rename drivers/{tty/hvc => char}/virtio_console.c (99%) diff --git a/drivers/char/Makefile b/drivers/char/Makefile index 5bc765d4c3ca..8238f89f73c9 100644 --- a/drivers/char/Makefile +++ b/drivers/char/Makefile @@ -30,6 +30,7 @@ obj-$(CONFIG_SYNCLINK_GT) += synclink_gt.o obj-$(CONFIG_AMIGA_BUILTIN_SERIAL) += amiserial.o obj-$(CONFIG_SX) += sx.o generic_serial.o obj-$(CONFIG_RIO) += rio/ generic_serial.o +obj-$(CONFIG_VIRTIO_CONSOLE) += virtio_console.o obj-$(CONFIG_RAW_DRIVER) += raw.o obj-$(CONFIG_SGI_SNSC) += snsc.o snsc_event.o obj-$(CONFIG_MSPEC) += mspec.o diff --git a/drivers/tty/hvc/virtio_console.c b/drivers/char/virtio_console.c similarity index 99% rename from drivers/tty/hvc/virtio_console.c rename to drivers/char/virtio_console.c index 896a2ced1d27..5feadeefef3f 100644 --- a/drivers/tty/hvc/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -31,7 +31,7 @@ #include #include #include -#include "hvc_console.h" +#include "../tty/hvc/hvc_console.h" /* * This is a global struct for storing common data for all the devices diff --git a/drivers/tty/hvc/Makefile b/drivers/tty/hvc/Makefile index e6bed5f177ff..d79e7e9bf9d2 100644 --- a/drivers/tty/hvc/Makefile +++ b/drivers/tty/hvc/Makefile @@ -10,4 +10,3 @@ obj-$(CONFIG_HVC_XEN) += hvc_xen.o obj-$(CONFIG_HVC_IUCV) += hvc_iucv.o obj-$(CONFIG_HVC_UDBG) += hvc_udbg.o obj-$(CONFIG_HVCS) += hvcs.o -obj-$(CONFIG_VIRTIO_CONSOLE) += virtio_console.o From 91f78f36694b8748fda855b1f9e3614b027a744f Mon Sep 17 00:00:00 2001 From: Ken Mills Date: Tue, 25 Jan 2011 14:17:45 +0000 Subject: [PATCH 073/277] n_gsm: copy mtu over when configuring via ioctl interface This field is settable but did not get copied. Signed-off-by: Ken Mills Signed-off-by: Alan Cox Cc: stable@kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/tty/n_gsm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index 44b8412a04e8..aa2e5d3eb01a 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -2414,6 +2414,7 @@ static int gsmld_config(struct tty_struct *tty, struct gsm_mux *gsm, gsm->initiator = c->initiator; gsm->mru = c->mru; + gsm->mtu = c->mtu; gsm->encoding = c->encapsulation; gsm->adaption = c->adaption; gsm->n2 = c->n2; From 3e517f4b1de4787ecff87a73a9865a0b1aa2b10b Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Sun, 16 Jan 2011 05:16:14 +0000 Subject: [PATCH 074/277] 68360serial: Plumb in rs_360_get_icount() Commit 0587102cf9f427c185bfdeb2cef41e13ee0264b1 replaced a direct implementation of SIOCGICOUNT with an implementation of tty_operations::get_icount, but it did not actually set rs_360_ops.get_icount. Signed-off-by: Ben Hutchings Cc: stable@kernel.org [2.6.37] Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/68360serial.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/tty/serial/68360serial.c b/drivers/tty/serial/68360serial.c index 88b13356ec10..bc21eeae8fde 100644 --- a/drivers/tty/serial/68360serial.c +++ b/drivers/tty/serial/68360serial.c @@ -2428,6 +2428,7 @@ static const struct tty_operations rs_360_ops = { /* .read_proc = rs_360_read_proc, */ .tiocmget = rs_360_tiocmget, .tiocmset = rs_360_tiocmset, + .get_icount = rs_360_get_icount, }; static int __init rs_360_init(void) From 0f66e50af53d39edebf4bc64ef90077e738c171f Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Tue, 11 Jan 2011 00:16:43 -0500 Subject: [PATCH 075/277] serial: bfin_5xx: split uart RX lock from uart port lock to avoid deadlock The RX lock is used to protect the RX buffer from concurrent access in DMA mode between the timer and RX interrupt routines. It is independent from the uart lock which is used to protect the TX buffer. It is possible for a uart TX transfer to be started up from the RX interrupt handler if low latency is enabled. So we need to split the locks to avoid deadlocking in this situation. In PIO mode, the RX lock is not necessary because the handle_simple_irq and handle_level_irq functions ensure driver interrupt handlers are called once on one core. And now that the RX path has its own lock, the TX interrupt has nothing to do with the RX path, so disabling it at the same time. Signed-off-by: Sonic Zhang Signed-off-by: Mike Frysinger Signed-off-by: Greg Kroah-Hartman --- arch/blackfin/include/asm/bfin_serial.h | 2 ++ drivers/tty/serial/bfin_5xx.c | 15 ++++++--------- 2 files changed, 8 insertions(+), 9 deletions(-) diff --git a/arch/blackfin/include/asm/bfin_serial.h b/arch/blackfin/include/asm/bfin_serial.h index 1ff9f1468c02..7dbc664eab1e 100644 --- a/arch/blackfin/include/asm/bfin_serial.h +++ b/arch/blackfin/include/asm/bfin_serial.h @@ -10,6 +10,7 @@ #define __BFIN_ASM_SERIAL_H__ #include +#include #include #include @@ -41,6 +42,7 @@ struct bfin_serial_port { struct circ_buf rx_dma_buf; struct timer_list rx_dma_timer; int rx_dma_nrows; + spinlock_t rx_lock; unsigned int tx_dma_channel; unsigned int rx_dma_channel; struct work_struct tx_dma_workqueue; diff --git a/drivers/tty/serial/bfin_5xx.c b/drivers/tty/serial/bfin_5xx.c index e381b895b04d..9b1ff2b6bb37 100644 --- a/drivers/tty/serial/bfin_5xx.c +++ b/drivers/tty/serial/bfin_5xx.c @@ -370,10 +370,8 @@ static irqreturn_t bfin_serial_rx_int(int irq, void *dev_id) { struct bfin_serial_port *uart = dev_id; - spin_lock(&uart->port.lock); while (UART_GET_LSR(uart) & DR) bfin_serial_rx_chars(uart); - spin_unlock(&uart->port.lock); return IRQ_HANDLED; } @@ -490,9 +488,8 @@ void bfin_serial_rx_dma_timeout(struct bfin_serial_port *uart) { int x_pos, pos; - dma_disable_irq(uart->tx_dma_channel); - dma_disable_irq(uart->rx_dma_channel); - spin_lock_bh(&uart->port.lock); + dma_disable_irq_nosync(uart->rx_dma_channel); + spin_lock_bh(&uart->rx_lock); /* 2D DMA RX buffer ring is used. Because curr_y_count and * curr_x_count can't be read as an atomic operation, @@ -523,8 +520,7 @@ void bfin_serial_rx_dma_timeout(struct bfin_serial_port *uart) uart->rx_dma_buf.tail = uart->rx_dma_buf.head; } - spin_unlock_bh(&uart->port.lock); - dma_enable_irq(uart->tx_dma_channel); + spin_unlock_bh(&uart->rx_lock); dma_enable_irq(uart->rx_dma_channel); mod_timer(&(uart->rx_dma_timer), jiffies + DMA_RX_FLUSH_JIFFIES); @@ -571,7 +567,7 @@ static irqreturn_t bfin_serial_dma_rx_int(int irq, void *dev_id) unsigned short irqstat; int x_pos, pos; - spin_lock(&uart->port.lock); + spin_lock(&uart->rx_lock); irqstat = get_dma_curr_irqstat(uart->rx_dma_channel); clear_dma_irqstat(uart->rx_dma_channel); @@ -589,7 +585,7 @@ static irqreturn_t bfin_serial_dma_rx_int(int irq, void *dev_id) uart->rx_dma_buf.tail = uart->rx_dma_buf.head; } - spin_unlock(&uart->port.lock); + spin_unlock(&uart->rx_lock); return IRQ_HANDLED; } @@ -1332,6 +1328,7 @@ static int bfin_serial_probe(struct platform_device *pdev) } #ifdef CONFIG_SERIAL_BFIN_DMA + spin_lock_init(&uart->rx_lock); uart->tx_done = 1; uart->tx_count = 0; From 271c1150b4f8e1685e5a8cbf76e329ec894481da Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Mon, 17 Jan 2011 14:19:37 +0100 Subject: [PATCH 076/277] USB: io_edgeport: fix the reported firmware major and minor MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The major and minor number saved in the product_info structure were copied from the address instead of the data, causing an inconsistency in the reported versions during firmware loading: usb 4-1: firmware: requesting edgeport/down.fw /usr/src/linux/drivers/usb/serial/io_edgeport.c: downloading firmware version (930) 1.16.4 [..] /usr/src/linux/drivers/usb/serial/io_edgeport.c: edge_startup - time 3 4328191260 /usr/src/linux/drivers/usb/serial/io_edgeport.c: FirmwareMajorVersion 0.0.4 This can cause some confusion whether firmware loaded successfully or not. Cc: stable@kernel.org Signed-off-by: Bjørn Mork Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/io_edgeport.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c index cd769ef24f8a..3b246d93cf22 100644 --- a/drivers/usb/serial/io_edgeport.c +++ b/drivers/usb/serial/io_edgeport.c @@ -2889,8 +2889,8 @@ static void load_application_firmware(struct edgeport_serial *edge_serial) dbg("%s %d.%d.%d", fw_info, rec->data[0], rec->data[1], build); - edge_serial->product_info.FirmwareMajorVersion = fw->data[0]; - edge_serial->product_info.FirmwareMinorVersion = fw->data[1]; + edge_serial->product_info.FirmwareMajorVersion = rec->data[0]; + edge_serial->product_info.FirmwareMinorVersion = rec->data[1]; edge_serial->product_info.FirmwareBuildNumber = cpu_to_le16(build); for (rec = ihex_next_binrec(rec); rec; From b14de3857227cd978f515247853fd15cc2425d3e Mon Sep 17 00:00:00 2001 From: Ionut Nicu Date: Tue, 28 Dec 2010 22:21:08 +0200 Subject: [PATCH 077/277] USB: ti_usb: fix module removal If usb_deregister() is called after usb_serial_deregister() when the device is plugged in, the following Oops occurs: [ 95.337377] BUG: unable to handle kernel NULL pointer dereference at 00000010 [ 95.338236] IP: [] klist_put+0x12/0x62 [ 95.338356] *pdpt = 000000003001a001 *pde = 0000000000000000 [ 95.338356] Oops: 0000 [#1] SMP [ 95.340499] last sysfs file: /sys/devices/pci0000:00/0000:00:1d.2/usb8/idVendor [ 95.340499] Modules linked in: ti_usb_3410_5052(-) usbserial cpufreq_ondemand acpi_cpufreq mperf iptable_nat nf_nat iptable_mangle ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables ipv6 uinput arc4 ecb iwlagn iwlcore mac80211 cfg80211 microcode pcspkr acer_wmi joydev wmi sky2 [last unloaded: scsi_wait_scan] [ 95.341908] [ 95.341908] Pid: 1532, comm: modprobe Not tainted 2.6.37-rc7+ #6 Eiger /Aspire 5930 [ 95.341908] EIP: 0060:[] EFLAGS: 00010246 CPU: 0 [ 95.341908] EIP is at klist_put+0x12/0x62 [ 95.341908] EAX: 00000000 EBX: eedc0c84 ECX: c09c21b4 EDX: 00000001 [ 95.341908] ESI: 00000000 EDI: efaa0c1c EBP: f214fe2c ESP: f214fe1c [ 95.341908] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [ 95.341908] Process modprobe (pid: 1532, ti=f214e000 task=efaaf080 task.ti=f214e000) [ 95.341908] Stack: [ 95.341908] f214fe24 eedc0c84 efaaf080 efaa0c1c f214fe34 c0776ba8 f214fe5c c0776c76 [ 95.341908] c09c21b4 c09c21b4 eedc0c84 efaaf080 00000000 c0634398 eafe2d1c f7b515f0 [ 95.341908] f214fe6c c0631b5c eafe2d50 eafe2d1c f214fe7c c0631ba2 eafe2d1c eafe2c00 [ 95.341908] Call Trace: [ 95.341908] [] ? klist_del+0xd/0xf [ 95.341908] [] ? klist_remove+0x48/0x74 [ 95.341908] [] ? devres_release_all+0x49/0x51 [ 95.341908] [] ? __device_release_driver+0x7b/0xa4 [ 95.341908] [] ? device_release_driver+0x1d/0x28 [ 95.341908] [] ? bus_remove_device+0x92/0xa1 [ 95.341908] [] ? device_del+0xf9/0x13e [ 95.341908] [] ? usb_serial_disconnect+0xd9/0x116 [usbserial] [ 95.341908] [] ? usb_disable_interface+0x32/0x40 [ 95.341908] [] ? usb_unbind_interface+0x48/0xfd [ 95.341908] [] ? __device_release_driver+0x62/0xa4 [ 95.341908] [] ? driver_detach+0x62/0x81 [ 95.341908] [] ? bus_remove_driver+0x8f/0xae [ 95.341908] [] ? driver_unregister+0x50/0x57 [ 95.341908] [] ? usb_deregister+0x77/0x84 [ 95.341908] [] ? ti_exit+0x26/0x28 [ti_usb_3410_5052] [ 95.341908] [] ? sys_delete_module+0x181/0x1de [ 95.341908] [] ? path_put+0x1a/0x1d [ 95.341908] [] ? audit_syscall_entry+0x116/0x138 [ 95.341908] [] ? sysenter_do_call+0x12/0x28 [ 95.341908] Code: 00 83 7d f0 00 74 09 85 f6 74 05 89 f0 ff 55 f0 8b 43 04 5a 5b 5e 5f 5d c3 55 89 e5 57 56 53 89 c3 83 ec 04 8b 30 83 e6 fe 89 f0 <8b> 7e 10 88 55 f0 e8 47 26 01 00 8a 55 f0 84 d2 74 17 f6 03 01 [ 95.341908] EIP: [] klist_put+0x12/0x62 SS:ESP 0068:f214fe1c [ 95.341908] CR2: 0000000000000010 [ 95.342357] ---[ end trace 8124d00ad871ad18 ]--- Signed-off-by: Ionut Nicu Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ti_usb_3410_5052.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index b2902f307b47..a910004f4079 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -369,9 +369,9 @@ failed_1port: static void __exit ti_exit(void) { + usb_deregister(&ti_usb_driver); usb_serial_deregister(&ti_1port_device); usb_serial_deregister(&ti_2port_device); - usb_deregister(&ti_usb_driver); } From 2bd15f1f49629f110bbbbc5a2a226bec892de87c Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Sun, 23 Jan 2011 23:08:31 +0100 Subject: [PATCH 078/277] USB SL811HS HCD: Fix memory leak in sl811h_urb_enqueue() In drivers/usb/host/sl811-hcd.c::sl811h_urb_enqueue(), memory is allocated with kzalloc() and assigned to 'ep'. If we leave via the 'fail' label due to 'if (ep->maxpacket > H_MAXPACKET)', then 'ep' will go out of scope without having been assigned to anything, so we'll leak the memory we allocated. This patch fixes the leak by simply calling kfree(ep); before jumping to the 'fail' label. Signed-off-by: Jesper Juhl Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/sl811-hcd.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index 990f06b89eaa..2e9602a10e9b 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -861,6 +861,7 @@ static int sl811h_urb_enqueue( DBG("dev %d ep%d maxpacket %d\n", udev->devnum, epnum, ep->maxpacket); retval = -EINVAL; + kfree(ep); goto fail; } From c25f6b1591b158f7ae3b9132367d0fa6d632e70e Mon Sep 17 00:00:00 2001 From: Nick Holloway Date: Wed, 26 Jan 2011 21:47:43 +0000 Subject: [PATCH 079/277] USB: Storage: Add unusual_devs entry for VTech Kidizoom This device suffers from the off-by-one error when reporting the capacity, so add entry with US_FL_FIX_CAPACITY. Signed-off-by: Nick Holloway Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/unusual_devs.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index 24bd5d7c3deb..79d76da91da0 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -1397,6 +1397,13 @@ UNUSUAL_DEV( 0x0f19, 0x0105, 0x0100, 0x0100, USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_IGNORE_RESIDUE ), +/* Submitted by Nick Holloway */ +UNUSUAL_DEV( 0x0f88, 0x042e, 0x0100, 0x0100, + "VTech", + "Kidizoom", + USB_SC_DEVICE, USB_PR_DEVICE, NULL, + US_FL_FIX_CAPACITY ), + /* Reported by Michael Stattmann */ UNUSUAL_DEV( 0x0fce, 0xd008, 0x0000, 0x0000, "Sony Ericsson", From 6ec2f46c4b4abf48c88c0ae7c476f347b97e1105 Mon Sep 17 00:00:00 2001 From: Jean-Christophe PLAGNIOL-VILLARD Date: Sat, 29 Jan 2011 15:32:52 +0100 Subject: [PATCH 080/277] USB: ftdi_sio: add ST Micro Connect Lite uart support on ST Micro Connect Lite we have 4 port Part A and B for the JTAG Port C Uart Port D for PIO Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ftdi_sio.c | 26 ++++++++++++++++++++++++++ drivers/usb/serial/ftdi_sio_ids.h | 6 ++++++ 2 files changed, 32 insertions(+) diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 4787c0cd063f..b1b03fb55b6b 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -100,6 +100,7 @@ struct ftdi_sio_quirk { static int ftdi_jtag_probe(struct usb_serial *serial); static int ftdi_mtxorb_hack_setup(struct usb_serial *serial); static int ftdi_NDI_device_setup(struct usb_serial *serial); +static int ftdi_stmclite_probe(struct usb_serial *serial); static void ftdi_USB_UIRT_setup(struct ftdi_private *priv); static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv); @@ -123,6 +124,10 @@ static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = { .port_probe = ftdi_HE_TIRA1_setup, }; +static struct ftdi_sio_quirk ftdi_stmclite_quirk = { + .probe = ftdi_stmclite_probe, +}; + /* * The 8U232AM has the same API as the sio except for: * - it can support MUCH higher baudrates; up to: @@ -810,6 +815,8 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_DOTEC_PID) }, { USB_DEVICE(QIHARDWARE_VID, MILKYMISTONE_JTAGSERIAL_PID), .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, + { USB_DEVICE(ST_VID, ST_STMCLT1030_PID), + .driver_info = (kernel_ulong_t)&ftdi_stmclite_quirk }, { }, /* Optional parameter entry */ { } /* Terminating entry */ }; @@ -1708,6 +1715,25 @@ static int ftdi_jtag_probe(struct usb_serial *serial) return 0; } +/* + * First and second port on STMCLiteadaptors is reserved for JTAG interface + * and the forth port for pio + */ +static int ftdi_stmclite_probe(struct usb_serial *serial) +{ + struct usb_device *udev = serial->dev; + struct usb_interface *interface = serial->interface; + + dbg("%s", __func__); + + if (interface == udev->actconfig->interface[2]) + return 0; + + dev_info(&udev->dev, "Ignoring serial port reserved for JTAG\n"); + + return -ENODEV; +} + /* * The Matrix Orbital VK204-25-USB has an invalid IN endpoint. * We have to correct it if we want to read from it. diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h index ed160def8584..0637e21bd4f3 100644 --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -1033,6 +1033,12 @@ #define STB_PID 0x0001 /* Sensor Terminal Board */ #define WHT_PID 0x0004 /* Wireless Handheld Terminal */ +/* + * STMicroelectonics + */ +#define ST_VID 0x0483 +#define ST_STMCLT1030_PID 0x3747 /* ST Micro Connect Lite STMCLT1030 */ + /* * Papouch products (http://www.papouch.com/) * Submitted by Folkert van Heusden From 6d86d52a33cfe6338efd007cfcca895b18c1d84b Mon Sep 17 00:00:00 2001 From: Yusuke Goda Date: Mon, 31 Jan 2011 15:49:34 +0900 Subject: [PATCH 081/277] usb: r8a66597-udc: Fixed bufnum of Bulk Signed-off-by: Yusuke Goda Acked-by: Yoshihiro Shimoda Cc: Paul Mundt Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/r8a66597-udc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c index 20d43da319ae..015118535f77 100644 --- a/drivers/usb/gadget/r8a66597-udc.c +++ b/drivers/usb/gadget/r8a66597-udc.c @@ -258,7 +258,7 @@ static int pipe_buffer_setting(struct r8a66597 *r8a66597, break; case R8A66597_BULK: /* isochronous pipes may be used as bulk pipes */ - if (info->pipe > R8A66597_BASE_PIPENUM_BULK) + if (info->pipe >= R8A66597_BASE_PIPENUM_BULK) bufnum = info->pipe - R8A66597_BASE_PIPENUM_BULK; else bufnum = info->pipe - R8A66597_BASE_PIPENUM_ISOC; From d199c96d41d80a567493e12b8e96ea056a1350c1 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Mon, 31 Jan 2011 10:56:37 -0500 Subject: [PATCH 082/277] USB: prevent buggy hubs from crashing the USB stack If anyone comes across a high-speed hub that (by mistake or by design) claims to have no Transaction Translators, plugging a full- or low-speed device into it will cause the USB stack to crash. This patch (as1446) prevents the problem by ignoring such devices, since the kernel has no way to communicate with them. Signed-off-by: Alan Stern Tested-by: Perry Neben CC: Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/hub.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 4310cc4b1cb5..d041c6826e43 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2753,6 +2753,11 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, udev->ttport = hdev->ttport; } else if (udev->speed != USB_SPEED_HIGH && hdev->speed == USB_SPEED_HIGH) { + if (!hub->tt.hub) { + dev_err(&udev->dev, "parent hub has no TT\n"); + retval = -EINVAL; + goto fail; + } udev->tt = &hub->tt; udev->ttport = port1; } From bf3d7d40e42a85ca73a34e1385ff34f092a384eb Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Wed, 2 Feb 2011 13:59:33 -0500 Subject: [PATCH 083/277] USB: fix race between root-hub resume and wakeup requests The USB core keeps track of pending resume requests for root hubs, in order to resolve races between wakeup requests and suspends. However the code that does this is subject to another race (between wakeup requests and resumes) because the WAKEUP_PENDING flag is cleared before the resume occurs, leaving a window in which another wakeup request might arrive. This patch (as1447) fixes the problem by clearing the WAKEUP_PENDING flag after the resume instead of before it. This fixes Bugzilla #24952. Signed-off-by: Alan Stern Tested-by: Paul Bender Tested-by: warpme Cc: stable [.36+] Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/hcd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 6a95017fa62b..e935f71d7a34 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -1955,7 +1955,6 @@ int hcd_bus_resume(struct usb_device *rhdev, pm_message_t msg) dev_dbg(&rhdev->dev, "usb %s%s\n", (msg.event & PM_EVENT_AUTO ? "auto-" : ""), "resume"); - clear_bit(HCD_FLAG_WAKEUP_PENDING, &hcd->flags); if (!hcd->driver->bus_resume) return -ENOENT; if (hcd->state == HC_STATE_RUNNING) @@ -1963,6 +1962,7 @@ int hcd_bus_resume(struct usb_device *rhdev, pm_message_t msg) hcd->state = HC_STATE_RESUMING; status = hcd->driver->bus_resume(hcd); + clear_bit(HCD_FLAG_WAKEUP_PENDING, &hcd->flags); if (status == 0) { /* TRSMRCY = 10 msec */ msleep(10); From 28fe2eb0162a1d23370dd99ff7d0e35632b1ee91 Mon Sep 17 00:00:00 2001 From: Michael Williamson Date: Thu, 27 Jan 2011 18:36:19 -0600 Subject: [PATCH 084/277] USB: ftdi_sio: Add VID=0x0647, PID=0x0100 for Acton Research spectrograph Add the USB Vendor ID and Product ID for a Acton Research Corp. spectrograph device with a FTDI chip for serial I/O. Signed-off-by: Michael H Williamson Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ftdi_sio.c | 1 + drivers/usb/serial/ftdi_sio_ids.h | 6 ++++++ 2 files changed, 7 insertions(+) diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index b1b03fb55b6b..f349a3629d00 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -621,6 +621,7 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) }, { USB_DEVICE(TTI_VID, TTI_QL355P_PID) }, { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) }, + { USB_DEVICE(ACTON_VID, ACTON_SPECTRAPRO_PID) }, { USB_DEVICE(CONTEC_VID, CONTEC_COM1USBH_PID) }, { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) }, { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) }, diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h index 0637e21bd4f3..117e8e6f93c6 100644 --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -517,6 +517,12 @@ #define RATOC_VENDOR_ID 0x0584 #define RATOC_PRODUCT_ID_USB60F 0xb020 +/* + * Acton Research Corp. + */ +#define ACTON_VID 0x0647 /* Vendor ID */ +#define ACTON_SPECTRAPRO_PID 0x0100 + /* * Contec products (http://www.contec.com) * Submitted by Daniel Sangorrin From 3ea3c9b5a8464ec8223125f95e5dddb3bfd02a39 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Tue, 25 Jan 2011 13:07:04 -0500 Subject: [PATCH 085/277] USB: usb-storage: unusual_devs entry for Coby MP3 player This patch (as1444) adds an unusual_devs entry for an MP3 player from Coby electronics. The device has two nasty bugs. Signed-off-by: Alan Stern Tested-by: Jasper Mackenzie Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/unusual_devs.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index 79d76da91da0..c1602b8c5594 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -1897,6 +1897,13 @@ UNUSUAL_DEV( 0x1e68, 0x001b, 0x0000, 0x0000, USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_IGNORE_RESIDUE | US_FL_SANE_SENSE ), +/* Reported by Jasper Mackenzie */ +UNUSUAL_DEV( 0x1e74, 0x4621, 0x0000, 0x0000, + "Coby Electronics", + "MP3 Player", + USB_SC_DEVICE, USB_PR_DEVICE, NULL, + US_FL_BULK_IGNORE_TAG | US_FL_MAX_SECTORS_64 ), + UNUSUAL_DEV( 0x2116, 0x0320, 0x0001, 0x0001, "ST", "2A", From 148fc55fd0449683a1d15bf219ad8d8b6fa17545 Mon Sep 17 00:00:00 2001 From: Yin Kangkai Date: Fri, 28 Jan 2011 12:04:35 +0800 Subject: [PATCH 086/277] USB: EHCI: fix scheduling while atomic during suspend There is a msleep with spin lock held during ehci pci suspend, which will cause kernel BUG: scheduling while atomic. Fix that. [ 184.139620] BUG: scheduling while atomic: kworker/u:11/416/0x00000002 [ 184.139632] 4 locks held by kworker/u:11/416: [ 184.139640] #0: (events_unbound){+.+.+.}, at: [] process_one_work+0x1b3/0x4cb [ 184.139669] #1: ((&entry->work)){+.+.+.}, at: [] process_one_work+0x1b3/0x4cb [ 184.139686] #2: (&__lockdep_no_validate__){+.+.+.}, at: [] __device_suspend+0x2c/0x154 [ 184.139706] #3: (&(&ehci->lock)->rlock){-.-...}, at: [] ehci_pci_suspend+0x35/0x7b [ 184.139725] Modules linked in: serio_raw pegasus joydev mrst_gfx(C) battery [ 184.139748] irq event stamp: 52 [ 184.139753] hardirqs last enabled at (51): [] mutex_lock_nested+0x258/0x293 [ 184.139766] hardirqs last disabled at (52): [] _raw_spin_lock_irqsave+0xf/0x3e [ 184.139777] softirqs last enabled at (0): [] copy_process+0x3d2/0x109d [ 184.139789] softirqs last disabled at (0): [< (null)>] (null) [ 184.139802] Pid: 416, comm: kworker/u:11 Tainted: G C 2.6.37-6.3-adaptation-oaktrail #37 [ 184.139809] Call Trace: [ 184.139820] [] __schedule_bug+0x5e/0x65 [ 184.139829] [] schedule+0xac/0xc4c [ 184.139840] [] ? string+0x37/0x8b [ 184.139853] [] ? lock_timer_base+0x1f/0x3e [ 184.139863] [] ? _raw_spin_lock_irqsave+0x35/0x3e [ 184.139876] [] ? trace_hardirqs_off+0xb/0xd [ 184.139885] [] schedule_timeout+0x283/0x2d9 [ 184.139896] [] ? process_timeout+0x0/0xa [ 184.139906] [] schedule_timeout_uninterruptible+0x15/0x17 [ 184.139916] [] msleep+0x10/0x16 [ 184.139926] [] ehci_adjust_port_wakeup_flags+0x69/0xf6 [ 184.139937] [] ehci_pci_suspend+0x48/0x7b [ 184.139946] [] suspend_common+0x52/0xbb [ 184.139956] [] hcd_pci_suspend+0x26/0x28 [ 184.139967] [] pci_pm_suspend+0x5f/0xd0 [ 184.139976] [] pm_op+0x5d/0xf0 [ 184.139986] [] __device_suspend+0xf5/0x154 [ 184.139996] [] async_suspend+0x16/0x3a [ 184.140006] [] async_run_entry_fn+0x89/0x111 [ 184.140016] [] process_one_work+0x295/0x4cb [ 184.140026] [] ? async_run_entry_fn+0x0/0x111 [ 184.140036] [] worker_thread+0x17f/0x298 [ 184.140045] [] ? worker_thread+0x0/0x298 [ 184.140055] [] kthread+0x64/0x69 [ 184.140064] [] ? kthread+0x0/0x69 [ 184.140075] [] kernel_thread_helper+0x6/0x1a Signed-off-by: Yin Kangkai Acked-by: Alan Stern CC: David Brownell CC: stable@kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-au1xxx.c | 2 +- drivers/usb/host/ehci-hub.c | 7 +++++++ drivers/usb/host/ehci-pci.c | 2 +- 3 files changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/usb/host/ehci-au1xxx.c b/drivers/usb/host/ehci-au1xxx.c index 2baf8a849086..a869e3c103d3 100644 --- a/drivers/usb/host/ehci-au1xxx.c +++ b/drivers/usb/host/ehci-au1xxx.c @@ -227,8 +227,8 @@ static int ehci_hcd_au1xxx_drv_suspend(struct device *dev) * mark HW unaccessible. The PM and USB cores make sure that * the root hub is either suspended or stopped. */ - spin_lock_irqsave(&ehci->lock, flags); ehci_prepare_ports_for_controller_suspend(ehci, device_may_wakeup(dev)); + spin_lock_irqsave(&ehci->lock, flags); ehci_writel(ehci, 0, &ehci->regs->intr_enable); (void)ehci_readl(ehci, &ehci->regs->intr_enable); diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index 796ea0c8900f..8a515f0d5988 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -111,6 +111,7 @@ static void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci, { int port; u32 temp; + unsigned long flags; /* If remote wakeup is enabled for the root hub but disabled * for the controller, we must adjust all the port wakeup flags @@ -120,6 +121,8 @@ static void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci, if (!ehci_to_hcd(ehci)->self.root_hub->do_remote_wakeup || do_wakeup) return; + spin_lock_irqsave(&ehci->lock, flags); + /* clear phy low-power mode before changing wakeup flags */ if (ehci->has_hostpc) { port = HCS_N_PORTS(ehci->hcs_params); @@ -131,7 +134,9 @@ static void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci, temp = ehci_readl(ehci, hostpc_reg); ehci_writel(ehci, temp & ~HOSTPC_PHCD, hostpc_reg); } + spin_unlock_irqrestore(&ehci->lock, flags); msleep(5); + spin_lock_irqsave(&ehci->lock, flags); } port = HCS_N_PORTS(ehci->hcs_params); @@ -170,6 +175,8 @@ static void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci, /* Does the root hub have a port wakeup pending? */ if (!suspending && (ehci_readl(ehci, &ehci->regs->status) & STS_PCD)) usb_hcd_resume_root_hub(ehci_to_hcd(ehci)); + + spin_unlock_irqrestore(&ehci->lock, flags); } static int ehci_bus_suspend (struct usb_hcd *hcd) diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index bed07d4aab06..07bb982e59f6 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -367,8 +367,8 @@ static int ehci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup) * mark HW unaccessible. The PM and USB cores make sure that * the root hub is either suspended or stopped. */ - spin_lock_irqsave (&ehci->lock, flags); ehci_prepare_ports_for_controller_suspend(ehci, do_wakeup); + spin_lock_irqsave (&ehci->lock, flags); ehci_writel(ehci, 0, &ehci->regs->intr_enable); (void)ehci_readl(ehci, &ehci->regs->intr_enable); From 9b4ce7bce5f30712fd926ab4599a803314a07719 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Nicolas=20de=20Peslo=C3=BCan?= Date: Mon, 24 Jan 2011 14:41:41 +0100 Subject: [PATCH 087/277] deb-pkg: Fix building outside of source tree (O=...). MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When building linux-headers package using deb-pkg, builddeb erroneously assume current directory is the source tree. This is not true if building in another directory, using make O=... deb-pkg. This patch fix this problem. Signed-off-by: Nicolas de Pesloüan Tested-by: Nikolai Kondrashov Acked-by: maximilian attems Signed-off-by: Michal Marek --- scripts/package/builddeb | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/scripts/package/builddeb b/scripts/package/builddeb index ebc6d6e9d778..f6cbc3ddb68b 100644 --- a/scripts/package/builddeb +++ b/scripts/package/builddeb @@ -238,12 +238,12 @@ EOF fi # Build header package -find . -name Makefile -o -name Kconfig\* -o -name \*.pl > /tmp/files$$ -find arch/$SRCARCH/include include scripts -type f >> /tmp/files$$ +(cd $srctree; find . -name Makefile -o -name Kconfig\* -o -name \*.pl > /tmp/files$$) +(cd $srctree; find arch/$SRCARCH/include include scripts -type f >> /tmp/files$$) (cd $objtree; find .config Module.symvers include scripts -type f >> /tmp/objfiles$$) destdir=$kernel_headers_dir/usr/src/linux-headers-$version mkdir -p "$destdir" -tar -c -f - -T /tmp/files$$ | (cd $destdir; tar -xf -) +(cd $srctree; tar -c -f - -T /tmp/files$$) | (cd $destdir; tar -xf -) (cd $objtree; tar -c -f - -T /tmp/objfiles$$) | (cd $destdir; tar -xf -) rm -f /tmp/files$$ /tmp/objfiles$$ arch=$(dpkg --print-architecture) From 8cf28f1f4de58c70e6af657bb46ca8f304c073d4 Mon Sep 17 00:00:00 2001 From: Pavankumar Kondeti Date: Fri, 4 Feb 2011 10:08:18 +0530 Subject: [PATCH 088/277] USB: Fix trout build failure with ci13xxx_msm gadget This patch fixes the below compilation errors. CC drivers/usb/gadget/ci13xxx_msm.o CC net/mac80211/led.o drivers/usb/gadget/ci13xxx_msm.c: In function 'ci13xxx_msm_notify_event': drivers/usb/gadget/ci13xxx_msm.c:42: error: 'USB_AHBBURST' undeclared (first use in this function) drivers/usb/gadget/ci13xxx_msm.c:42: error: (Each undeclared identifier is reported only once drivers/usb/gadget/ci13xxx_msm.c:42: error: for each function it appears in.) drivers/usb/gadget/ci13xxx_msm.c:43: error: 'USB_AHBMODE' undeclared (first use in this function) make[4]: *** [drivers/usb/gadget/ci13xxx_msm.o] Error 1 make[3]: *** [drivers/usb/gadget] Error 2 MSM USB driver is not supported on boards like trout (MSM7201) which has an external PHY. Signed-off-by: Pavankumar Kondeti Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/Kconfig | 2 ++ drivers/usb/host/Kconfig | 2 ++ drivers/usb/otg/Kconfig | 2 ++ include/linux/usb/msm_hsusb_hw.h | 4 ---- 4 files changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 06bb9d4587e9..d50099675f28 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -546,6 +546,8 @@ config USB_GADGET_CI13XXX_MSM ci13xxx_udc core. This driver depends on OTG driver for PHY initialization, clock management, powering up VBUS, and power management. + This driver is not supported on boards like trout which + has an external PHY. Say "y" to link the driver statically, or "m" to build a dynamically linked module called "ci13xxx_msm" and force all diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 24046c0f5878..0e6afa260ed8 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -151,6 +151,8 @@ config USB_EHCI_MSM Qualcomm chipsets. Root Hub has inbuilt TT. This driver depends on OTG driver for PHY initialization, clock management, powering up VBUS, and power management. + This driver is not supported on boards like trout which + has an external PHY. config USB_EHCI_HCD_PPC_OF bool "EHCI support for PPC USB controller on OF platform bus" diff --git a/drivers/usb/otg/Kconfig b/drivers/usb/otg/Kconfig index 9fb875d5f09c..9ffc8237fb4b 100644 --- a/drivers/usb/otg/Kconfig +++ b/drivers/usb/otg/Kconfig @@ -103,6 +103,8 @@ config USB_MSM_OTG_72K required after resetting the hardware and power management. This driver is required even for peripheral only or host only mode configurations. + This driver is not supported on boards like trout which + has an external PHY. config AB8500_USB tristate "AB8500 USB Transceiver Driver" diff --git a/include/linux/usb/msm_hsusb_hw.h b/include/linux/usb/msm_hsusb_hw.h index b92e17349c7b..7d1babbff071 100644 --- a/include/linux/usb/msm_hsusb_hw.h +++ b/include/linux/usb/msm_hsusb_hw.h @@ -16,12 +16,8 @@ #ifndef __LINUX_USB_GADGET_MSM72K_UDC_H__ #define __LINUX_USB_GADGET_MSM72K_UDC_H__ -#ifdef CONFIG_ARCH_MSM7X00A -#define USB_SBUSCFG (MSM_USB_BASE + 0x0090) -#else #define USB_AHBBURST (MSM_USB_BASE + 0x0090) #define USB_AHBMODE (MSM_USB_BASE + 0x0098) -#endif #define USB_CAPLENGTH (MSM_USB_BASE + 0x0100) /* 8 bit */ #define USB_USBCMD (MSM_USB_BASE + 0x0140) From a283c03a3a7a8cd3f8836ffd1b1d6cc8f778492c Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Sat, 29 Jan 2011 02:26:51 +0100 Subject: [PATCH 089/277] USB, Mass Storage, composite, gadget: Fix build failure and memset of a struct MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Trying to compile drivers/usb/gadget/f_mass_storage.o currently fails and spews a ton of warnings : CC drivers/usb/gadget/f_mass_storage.o drivers/usb/gadget/f_mass_storage.c:436:22: error: field ‘function’ has incomplete type drivers/usb/gadget/f_mass_storage.c: In function ‘fsg_from_func’: drivers/usb/gadget/f_mass_storage.c:466:9: warning: type defaults to ‘int’ in declaration of ‘__mptr’ drivers/usb/gadget/f_mass_storage.c:466:9: warning: initialization from incompatible pointer type drivers/usb/gadget/f_mass_storage.c: At top level: drivers/usb/gadget/f_mass_storage.c:2743:15: warning: ‘struct usb_composite_dev’ declared inside parameter list drivers/usb/gadget/f_mass_storage.c:2743:15: warning: its scope is only this definition or declaration, which is probably not what you want drivers/usb/gadget/f_mass_storage.c: In function ‘fsg_common_init’: drivers/usb/gadget/f_mass_storage.c:2745:34: error: dereferencing pointer to incomplete type drivers/usb/gadget/f_mass_storage.c:2775:23: error: dereferencing pointer to incomplete type drivers/usb/gadget/f_mass_storage.c:2779:3: error: implicit declaration of function ‘usb_string_id’ drivers/usb/gadget/f_mass_storage.c: At top level: drivers/usb/gadget/f_mass_storage.c:2984:60: warning: ‘struct usb_configuration’ declared inside parameter list drivers/usb/gadget/f_mass_storage.c:3003:57: warning: ‘struct usb_configuration’ declared inside parameter list drivers/usb/gadget/f_mass_storage.c: In function ‘fsg_bind’: drivers/usb/gadget/f_mass_storage.c:3006:31: error: dereferencing pointer to incomplete type drivers/usb/gadget/f_mass_storage.c:3013:2: error: implicit declaration of function ‘usb_interface_id’ drivers/usb/gadget/f_mass_storage.c:3033:3: error: dereferencing pointer to incomplete type drivers/usb/gadget/f_mass_storage.c:3034:6: error: dereferencing pointer to incomplete type drivers/usb/gadget/f_mass_storage.c:3043:4: error: dereferencing pointer to incomplete type drivers/usb/gadget/f_mass_storage.c:3044:7: error: dereferencing pointer to incomplete type drivers/usb/gadget/f_mass_storage.c:3045:26: error: dereferencing pointer to incomplete type drivers/usb/gadget/f_mass_storage.c: At top level: drivers/usb/gadget/f_mass_storage.c:3067:14: warning: ‘struct usb_configuration’ declared inside parameter list drivers/usb/gadget/f_mass_storage.c:3067:14: warning: ‘struct usb_composite_dev’ declared inside parameter list drivers/usb/gadget/f_mass_storage.c: In function ‘fsg_bind_config’: drivers/usb/gadget/f_mass_storage.c:3093:2: error: implicit declaration of function ‘usb_add_function’ drivers/usb/gadget/f_mass_storage.c: At top level: drivers/usb/gadget/f_mass_storage.c:3103:9: warning: ‘struct usb_configuration’ declared inside parameter list drivers/usb/gadget/f_mass_storage.c:3103:9: warning: ‘struct usb_composite_dev’ declared inside parameter list drivers/usb/gadget/f_mass_storage.c: In function ‘fsg_add’: drivers/usb/gadget/f_mass_storage.c:3105:2: warning: passing argument 1 of ‘fsg_bind_config’ from incompatible pointer type drivers/usb/gadget/f_mass_storage.c:3065:12: note: expected ‘struct usb_composite_dev *’ but argument is of type ‘struct usb_composite_dev *’ drivers/usb/gadget/f_mass_storage.c:3105:2: warning: passing argument 2 of ‘fsg_bind_config’ from incompatible pointer type drivers/usb/gadget/f_mass_storage.c:3065:12: note: expected ‘struct usb_configuration *’ but argument is of type ‘struct usb_configuration *’ drivers/usb/gadget/f_mass_storage.c: At top level: drivers/usb/gadget/f_mass_storage.c:3190:23: warning: ‘struct usb_composite_dev’ declared inside parameter list drivers/usb/gadget/f_mass_storage.c:3195:23: warning: ‘struct usb_composite_dev’ declared inside parameter list drivers/usb/gadget/f_mass_storage.c:3193:1: error: conflicting types for ‘fsg_common_from_params’ drivers/usb/gadget/f_mass_storage.c:3188:1: note: previous declaration of ‘fsg_common_from_params’ was here drivers/usb/gadget/f_mass_storage.c: In function ‘fsg_common_from_params’: drivers/usb/gadget/f_mass_storage.c:3199:2: warning: passing argument 2 of ‘fsg_common_init’ from incompatible pointer type drivers/usb/gadget/f_mass_storage.c:2741:27: note: expected ‘struct usb_composite_dev *’ but argument is of type ‘struct usb_composite_dev *’ make[1]: *** [drivers/usb/gadget/f_mass_storage.o] Error 1 make: *** [drivers/usb/gadget/f_mass_storage.o] Error 2 This is due to the missing include of linux/usb/composite.h - this patch adds the missing include. In addition there's also a problem in fsg_common_init() where we memset 'common', but we use the size of a pointer to 'struct fsg_common' as the size argument to memset(), not the actual size of the struct. This patch fixes the sizeof so we zero the entire struct as intended. Signed-off-by: Jesper Juhl Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/f_mass_storage.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index b5dbb2308f56..6d8e533949eb 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -293,6 +293,7 @@ #include #include +#include #include "gadget_chips.h" @@ -2763,7 +2764,7 @@ static struct fsg_common *fsg_common_init(struct fsg_common *common, return ERR_PTR(-ENOMEM); common->free_storage_on_release = 1; } else { - memset(common, 0, sizeof common); + memset(common, 0, sizeof *common); common->free_storage_on_release = 0; } From 721d92fc6373dee15846216f9d178ec240ec0fd7 Mon Sep 17 00:00:00 2001 From: Arvid Ephraim Picciani Date: Tue, 25 Jan 2011 15:58:40 +0100 Subject: [PATCH 090/277] USB: cdc-acm: Adding second ACM channel support for Nokia N8 This adds the N8 to the list of devices in cdc-acm, in order to get the secondary ACM device exposed. In the spirit of: http://kerneltrap.org/mailarchive/linux-usb/2010/9/4/6264554 Signed-off-by: Arvid Ephraim Picciani Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-acm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index d6ede989ff22..4ab49d4eebf4 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1607,6 +1607,7 @@ static const struct usb_device_id acm_ids[] = { { NOKIA_PCSUITE_ACM_INFO(0x0154), }, /* Nokia 5800 XpressMusic */ { NOKIA_PCSUITE_ACM_INFO(0x04ce), }, /* Nokia E90 */ { NOKIA_PCSUITE_ACM_INFO(0x01d4), }, /* Nokia E55 */ + { NOKIA_PCSUITE_ACM_INFO(0x0302), }, /* Nokia N8 */ { SAMSUNG_PCSUITE_ACM_INFO(0x6651), }, /* Samsung GTi8510 (INNOV8) */ /* NOTE: non-Nokia COMM/ACM/0xff is likely MSFT RNDIS... NOT a modem! */ From 5820de5303f73d48dcc3a053c875d1f0da7eef67 Mon Sep 17 00:00:00 2001 From: Christian Lamparter Date: Thu, 3 Feb 2011 22:22:55 +0100 Subject: [PATCH 091/277] carl9170: fix typo in PS code This patch fixes a off-by-one bug which bugged the driver's PS-POLL capability. Cc: Signed-off-by: Christian Lamparter Signed-off-by: John W. Linville --- drivers/net/wireless/ath/carl9170/rx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/carl9170/rx.c b/drivers/net/wireless/ath/carl9170/rx.c index 939a0e96ed1f..84866a4b8350 100644 --- a/drivers/net/wireless/ath/carl9170/rx.c +++ b/drivers/net/wireless/ath/carl9170/rx.c @@ -564,7 +564,7 @@ static void carl9170_ps_beacon(struct ar9170 *ar, void *data, unsigned int len) cam = ieee80211_check_tim(tim_ie, tim_len, ar->common.curaid); /* 2. Maybe the AP wants to send multicast/broadcast data? */ - cam = !!(tim_ie->bitmap_ctrl & 0x01); + cam |= !!(tim_ie->bitmap_ctrl & 0x01); if (!cam) { /* back to low-power land. */ From 9cf04dcc9c5ef884e952b2f461f39f682ef5c051 Mon Sep 17 00:00:00 2001 From: Mohammed Shafi Shajakhan Date: Fri, 4 Feb 2011 18:38:23 +0530 Subject: [PATCH 092/277] ath9k: Fix possible double free of PAPRD skb's This patch reverts the following commit ath9k: remove bfs_paprd_timestamp from struct ath_buf_state Under high interference/noisy environment conditions where PAPRD frames fails heavily introduces a possibility of double freeing skb's and causes kernel panic after some time.This patch reverts back to the original approach of using paprd_timestamp before freeing the PAPRD frame skb's [ 194.193705] Pid: 0, comm: swapper Tainted: G D WC 2.6.35-22-generic #33-Ubuntu [ 194.193712] Call Trace: [ 194.193722] [] ? printk+0x2d/0x35 [ 194.193732] [] panic+0x5a/0xd2 [ 194.193741] [] oops_end+0xcd/0xd0 [ 194.193750] [] die+0x54/0x80 [ 194.193758] [] do_trap+0x96/0xc0 [ 194.193837] [] ? do_invalid_op+0x0/0xa0 [ 194.193846] [] do_invalid_op+0x8b/0xa0 [ 194.193856] [] ? kfree+0xec/0xf0 [ 194.193866] [] ? default_spin_lock_flags+0x8/0x10 [ 194.193877] [] ? free_one_page+0x12a/0x2d0 [ 194.193888] [] ? __free_pages+0x1c/0x40 [ 194.193897] [] error_code+0x73/0x78 [ 194.193906] [] ? kfree+0xec/0xf0 [ 194.193915] [] ? skb_release_data+0x70/0xa0 [ 194.193924] [] skb_release_data+0x70/0xa0 [ 194.193933] [] __kfree_skb+0x17/0x90 [ 194.193941] [] consume_skb+0x21/0x40 [ 194.193964] [] ieee80211_tx_status+0x760/0x860 [mac80211] [ 194.193979] [] ath_tx_complete_buf+0x1bf/0x2c0 [ath9k] [ 194.193988] [] ? _raw_spin_lock_irqsave+0x2f/0x50 [ 194.193997] [] ? skb_queue_tail+0x3e/0x50 [ 194.194010] [] ath_tx_complete_aggr+0x823/0x940 [ath9k] [ 194.194021] [] ? sched_clock+0x8/0x10 [ 194.194030] [] ? sched_clock_local+0xa4/0x180 [ 194.194040] [] ? enqueue_sleeper+0x1e7/0x2b0 [ 194.194051] [] ? enqueue_entity+0x174/0x200 [ 194.194064] [] ath_tx_edma_tasklet+0x2bd/0x3b0 [ath9k] [ 194.194074] [] ? _raw_spin_lock_irqsave+0x2f/0x50 [ 194.194088] [] ath9k_tasklet+0x9f/0x190 [ath9k] [ 194.194097] [] tasklet_action+0xa7/0xb0 [ 194.194107] [] __do_softirq+0x9c/0x1b0 [ 194.194117] [] ? irq_to_desc+0x14/0x20 [ 194.194126] [] ? ack_apic_level+0x64/0x1f0 [ 194.194136] [] do_softirq+0x45/0x50 [ 194.194145] [] irq_exit+0x65/0x70 [ 194.194153] [] do_IRQ+0x55/0xc0 [ 194.194162] [] ? hrtimer_start+0x27/0x30 [ 194.194171] [] common_interrupt+0x30/0x38 [ 194.194181] [] ? native_safe_halt+0xa/0x10 [ 194.194268] [] default_idle+0x49/0xb0 [ 194.194277] [] cpu_idle+0x8c/0xd0 [ 194.194286] [] rest_init+0x71/0x80 [ 194.194295] [] start_kernel+0x36e/0x374 [ 194.194305] [] ? pass_all_bootoptions+0x0/0xa [ 194.194314] [] i386_start_kernel+0xd7/0xdf [ 194.194364] panic occurred, switching back to text console Signed-off-by: Mohammed Shafi Shajakhan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ath9k.h | 2 +- drivers/net/wireless/ath/ath9k/main.c | 2 -- drivers/net/wireless/ath/ath9k/xmit.c | 7 ++++++- 3 files changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 3681caf54282..23838e37d45f 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -218,6 +218,7 @@ struct ath_frame_info { struct ath_buf_state { u8 bf_type; u8 bfs_paprd; + unsigned long bfs_paprd_timestamp; enum ath9k_internal_frame_type bfs_ftype; }; @@ -593,7 +594,6 @@ struct ath_softc { struct work_struct paprd_work; struct work_struct hw_check_work; struct completion paprd_complete; - bool paprd_pending; u32 intrstatus; u32 sc_flags; /* SC_OP_* */ diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 9040c2ff1909..da5c64597c1f 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -342,7 +342,6 @@ static bool ath_paprd_send_frame(struct ath_softc *sc, struct sk_buff *skb, int tx_info->control.rates[1].idx = -1; init_completion(&sc->paprd_complete); - sc->paprd_pending = true; txctl.paprd = BIT(chain); if (ath_tx_start(hw, skb, &txctl) != 0) { @@ -353,7 +352,6 @@ static bool ath_paprd_send_frame(struct ath_softc *sc, struct sk_buff *skb, int time_left = wait_for_completion_timeout(&sc->paprd_complete, msecs_to_jiffies(ATH_PAPRD_TIMEOUT)); - sc->paprd_pending = false; if (!time_left) ath_dbg(ath9k_hw_common(sc->sc_ah), ATH_DBG_CALIBRATE, diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 33a37edbaf79..07b7804aec5b 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1725,6 +1725,9 @@ static void ath_tx_start_dma(struct ath_softc *sc, struct ath_buf *bf, ar9003_hw_set_paprd_txdesc(sc->sc_ah, bf->bf_desc, bf->bf_state.bfs_paprd); + if (txctl->paprd) + bf->bf_state.bfs_paprd_timestamp = jiffies; + ath_tx_send_normal(sc, txctl->txq, tid, &bf_head); } @@ -1886,7 +1889,9 @@ static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf, bf->bf_buf_addr = 0; if (bf->bf_state.bfs_paprd) { - if (!sc->paprd_pending) + if (time_after(jiffies, + bf->bf_state.bfs_paprd_timestamp + + msecs_to_jiffies(ATH_PAPRD_TIMEOUT))) dev_kfree_skb_any(skb); else complete(&sc->paprd_complete); From e45ff01d3f79bc71e6f514302a776cc8815eaecc Mon Sep 17 00:00:00 2001 From: Ajit Khaparde Date: Fri, 4 Feb 2011 17:18:28 +0000 Subject: [PATCH 093/277] benet: Avoid potential null deref in be_cmd_get_seeprom_data() Found by: Jesper Juhl Signed-off-by: Ajit Khaparde Signed-off-by: David S. Miller --- drivers/net/benet/be_cmds.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c index 0c7811faf72c..a179cc6d79f2 100644 --- a/drivers/net/benet/be_cmds.c +++ b/drivers/net/benet/be_cmds.c @@ -1786,6 +1786,10 @@ int be_cmd_get_seeprom_data(struct be_adapter *adapter, spin_lock_bh(&adapter->mcc_lock); wrb = wrb_from_mccq(adapter); + if (!wrb) { + status = -EBUSY; + goto err; + } req = nonemb_cmd->va; sge = nonembedded_sgl(wrb); @@ -1801,6 +1805,7 @@ int be_cmd_get_seeprom_data(struct be_adapter *adapter, status = be_mcc_notify_wait(adapter); +err: spin_unlock_bh(&adapter->mcc_lock); return status; } From bf1f9ae05036e12035f8e9a48f3dcf4dd14fdada Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Sat, 5 Feb 2011 10:41:53 +0000 Subject: [PATCH 094/277] sis900: Fix mem leak in sis900_rx error path Fix memory leak in error path of sis900_rx(). If we don't do this we'll leak the skb we dev_alloc_skb()'ed just a few lines above when the variable goes out of scope. Signed-off-by: Jesper Juhl Signed-off-by: David S. Miller --- drivers/net/sis900.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/sis900.c b/drivers/net/sis900.c index 5976d1d51df1..640e368ebeee 100644 --- a/drivers/net/sis900.c +++ b/drivers/net/sis900.c @@ -1777,6 +1777,7 @@ static int sis900_rx(struct net_device *net_dev) "cur_rx:%4.4d, dirty_rx:%4.4d\n", net_dev->name, sis_priv->cur_rx, sis_priv->dirty_rx); + dev_kfree_skb(skb); break; } From 72389a33b8878e6091f7ab8080f5ed07054c7c39 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Sun, 6 Feb 2011 15:50:52 +0000 Subject: [PATCH 095/277] drm/i915/lvds: Restore dithering on native modes for gen2/3 A regression introduced in bee17e5 cleared the dithering bit for native modes on gen2/3. Bugzilla: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/711568 Signed-off-by: Chris Wilson --- drivers/gpu/drm/i915/intel_lvds.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index ace8d5d30dd2..bcdba7bd5cfa 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -261,12 +261,6 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder, return true; } - /* Make sure pre-965s set dither correctly */ - if (INTEL_INFO(dev)->gen < 4) { - if (dev_priv->lvds_dither) - pfit_control |= PANEL_8TO6_DITHER_ENABLE; - } - /* Native modes don't need fitting */ if (adjusted_mode->hdisplay == mode->hdisplay && adjusted_mode->vdisplay == mode->vdisplay) @@ -374,10 +368,16 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder, } out: + /* If not enabling scaling, be consistent and always use 0. */ if ((pfit_control & PFIT_ENABLE) == 0) { pfit_control = 0; pfit_pgm_ratios = 0; } + + /* Make sure pre-965 set dither correctly */ + if (INTEL_INFO(dev)->gen < 4 && dev_priv->lvds_dither) + pfit_control |= PANEL_8TO6_DITHER_ENABLE; + if (pfit_control != intel_lvds->pfit_control || pfit_pgm_ratios != intel_lvds->pfit_pgm_ratios) { intel_lvds->pfit_control = pfit_control; From 711c914688163dbe757c174788e20695088478e5 Mon Sep 17 00:00:00 2001 From: Vladislav Zolotarov Date: Sun, 6 Feb 2011 11:21:49 -0800 Subject: [PATCH 096/277] bnx2x: Duplication in promisc mode Prevent packets duplication for frames targeting FCoE L2 ring: packets were arriving to stack from both L2 RSS and from FCoE L2 in a promiscuous mode. Configure FCoE L2 ring to DROP_ALL rx mode, when interface is configured to PROMISC, and to accept only unicast frames, when interface is configured to ALL_MULTI. Signed-off-by: Vladislav Zolotarov Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller --- drivers/net/bnx2x/bnx2x_main.c | 32 +++++++++++++++++++++++--------- 1 file changed, 23 insertions(+), 9 deletions(-) diff --git a/drivers/net/bnx2x/bnx2x_main.c b/drivers/net/bnx2x/bnx2x_main.c index f40740e68ea5..d584d32c747d 100644 --- a/drivers/net/bnx2x/bnx2x_main.c +++ b/drivers/net/bnx2x/bnx2x_main.c @@ -4276,9 +4276,12 @@ void bnx2x_set_storm_rx_mode(struct bnx2x *bp) def_q_filters |= BNX2X_ACCEPT_UNICAST | BNX2X_ACCEPT_BROADCAST | BNX2X_ACCEPT_MULTICAST; #ifdef BCM_CNIC - cl_id = bnx2x_fcoe(bp, cl_id); - bnx2x_rxq_set_mac_filters(bp, cl_id, BNX2X_ACCEPT_UNICAST | - BNX2X_ACCEPT_MULTICAST); + if (!NO_FCOE(bp)) { + cl_id = bnx2x_fcoe(bp, cl_id); + bnx2x_rxq_set_mac_filters(bp, cl_id, + BNX2X_ACCEPT_UNICAST | + BNX2X_ACCEPT_MULTICAST); + } #endif break; @@ -4286,18 +4289,29 @@ void bnx2x_set_storm_rx_mode(struct bnx2x *bp) def_q_filters |= BNX2X_ACCEPT_UNICAST | BNX2X_ACCEPT_BROADCAST | BNX2X_ACCEPT_ALL_MULTICAST; #ifdef BCM_CNIC - cl_id = bnx2x_fcoe(bp, cl_id); - bnx2x_rxq_set_mac_filters(bp, cl_id, BNX2X_ACCEPT_UNICAST | - BNX2X_ACCEPT_MULTICAST); + /* + * Prevent duplication of multicast packets by configuring FCoE + * L2 Client to receive only matched unicast frames. + */ + if (!NO_FCOE(bp)) { + cl_id = bnx2x_fcoe(bp, cl_id); + bnx2x_rxq_set_mac_filters(bp, cl_id, + BNX2X_ACCEPT_UNICAST); + } #endif break; case BNX2X_RX_MODE_PROMISC: def_q_filters |= BNX2X_PROMISCUOUS_MODE; #ifdef BCM_CNIC - cl_id = bnx2x_fcoe(bp, cl_id); - bnx2x_rxq_set_mac_filters(bp, cl_id, BNX2X_ACCEPT_UNICAST | - BNX2X_ACCEPT_MULTICAST); + /* + * Prevent packets duplication by configuring DROP_ALL for FCoE + * L2 Client. + */ + if (!NO_FCOE(bp)) { + cl_id = bnx2x_fcoe(bp, cl_id); + bnx2x_rxq_set_mac_filters(bp, cl_id, BNX2X_ACCEPT_NONE); + } #endif /* pass management unicast packets as well */ llh_mask |= NIG_LLH0_BRB1_DRV_MASK_REG_LLH0_BRB1_DRV_MASK_UNCST; From 460c92fa38ff140f83c269e948e2aaab071d0af0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C5=81ukasz=20Wojni=C5=82owicz?= Date: Mon, 7 Feb 2011 13:13:27 +0100 Subject: [PATCH 097/277] ALSA: hda - switch lfe with side in mixer for 4930g MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Built-in sub-woofer can now be controlled by lfe slider instead of side slider on Acer Aspire 5930g Signed-off-by: Łukasz Wojniłowicz Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 25 ++++++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 2fa9ed99c32f..2571d977df22 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -2290,6 +2290,29 @@ static struct snd_kcontrol_new alc888_base_mixer[] = { { } /* end */ }; +static struct snd_kcontrol_new alc888_acer_aspire_4930g_mixer[] = { + HDA_CODEC_VOLUME("Front Playback Volume", 0x0c, 0x0, HDA_OUTPUT), + HDA_BIND_MUTE("Front Playback Switch", 0x0c, 2, HDA_INPUT), + HDA_CODEC_VOLUME("Surround Playback Volume", 0x0d, 0x0, HDA_OUTPUT), + HDA_BIND_MUTE("Surround Playback Switch", 0x0d, 2, HDA_INPUT), + HDA_CODEC_VOLUME_MONO("Center Playback Volume", 0x0f, 2, 0x0, + HDA_OUTPUT), + HDA_BIND_MUTE_MONO("Center Playback Switch", 0x0f, 2, 2, HDA_INPUT), + HDA_CODEC_VOLUME_MONO("LFE Playback Volume", 0x0f, 1, 0x0, HDA_OUTPUT), + HDA_BIND_MUTE_MONO("LFE Playback Switch", 0x0f, 1, 2, HDA_INPUT), + HDA_CODEC_VOLUME("Side Playback Volume", 0x0e, 0x0, HDA_OUTPUT), + HDA_BIND_MUTE("Side Playback Switch", 0x0e, 2, HDA_INPUT), + HDA_CODEC_VOLUME("CD Playback Volume", 0x0b, 0x04, HDA_INPUT), + HDA_CODEC_MUTE("CD Playback Switch", 0x0b, 0x04, HDA_INPUT), + HDA_CODEC_VOLUME("Line Playback Volume", 0x0b, 0x02, HDA_INPUT), + HDA_CODEC_MUTE("Line Playback Switch", 0x0b, 0x02, HDA_INPUT), + HDA_CODEC_VOLUME("Mic Playback Volume", 0x0b, 0x0, HDA_INPUT), + HDA_CODEC_VOLUME("Mic Boost Volume", 0x18, 0, HDA_INPUT), + HDA_CODEC_MUTE("Mic Playback Switch", 0x0b, 0x0, HDA_INPUT), + { } /* end */ +}; + + static struct snd_kcontrol_new alc889_acer_aspire_8930g_mixer[] = { HDA_CODEC_VOLUME("Front Playback Volume", 0x0c, 0x0, HDA_OUTPUT), HDA_BIND_MUTE("Front Playback Switch", 0x0c, 2, HDA_INPUT), @@ -10359,7 +10382,7 @@ static struct alc_config_preset alc882_presets[] = { .init_hook = alc_automute_amp, }, [ALC888_ACER_ASPIRE_4930G] = { - .mixers = { alc888_base_mixer, + .mixers = { alc888_acer_aspire_4930g_mixer, alc883_chmode_mixer }, .init_verbs = { alc883_init_verbs, alc880_gpio1_init_verbs, alc888_acer_aspire_4930g_verbs }, From d50bdd5aa55127635fd8a5c74bd2abb256bd34e3 Mon Sep 17 00:00:00 2001 From: Curt Wohlgemuth Date: Mon, 7 Feb 2011 12:46:14 -0500 Subject: [PATCH 098/277] ext4: Fix data corruption with multi-block writepages support This fixes a corruption problem with the multi-block writepages submittal change for ext4, from commit bd2d0210cf22f2bd0cef72eb97cf94fc7d31d8cc ("ext4: use bio layer instead of buffer layer in mpage_da_submit_io"). (Note that this corruption is not present in 2.6.37 on ext4, because the corruption was detected after the feature was merged in 2.6.37-rc1, and so it was turned off by adding a non-default mount option, mblk_io_submit. With this commit, which hopefully fixes the last of the bugs with this feature, we'll be able to turn on this performance feature by default in 2.6.38, and remove the mblk_io_submit option.) The ext4 code path to bundle multiple pages for writeback in ext4_bio_write_page() had a bug: we should be clearing buffer head dirty flags *before* we submit the bio, not in the completion routine. The patch below was tested on 2.6.37 under KVM with the postgresql script which was submitted by Jon Nelson as documented in commit 1449032be1. Without the patch, I'd hit the corruption problem about 50-70% of the time. With the patch, I executed the script > 100 times with no corruption seen. I also fixed a bug to make sure ext4_end_bio() doesn't dereference the bio after the bio_put() call. Reported-by: Jon Nelson Reported-by: Matthias Bayer Signed-off-by: Curt Wohlgemuth Signed-off-by: "Theodore Ts'o" Cc: stable@kernel.org --- fs/ext4/page-io.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c index 7270dcfca92a..4e9b0a242f4c 100644 --- a/fs/ext4/page-io.c +++ b/fs/ext4/page-io.c @@ -190,6 +190,7 @@ static void ext4_end_bio(struct bio *bio, int error) struct inode *inode; unsigned long flags; int i; + sector_t bi_sector = bio->bi_sector; BUG_ON(!io_end); bio->bi_private = NULL; @@ -207,9 +208,7 @@ static void ext4_end_bio(struct bio *bio, int error) if (error) SetPageError(page); BUG_ON(!head); - if (head->b_size == PAGE_CACHE_SIZE) - clear_buffer_dirty(head); - else { + if (head->b_size != PAGE_CACHE_SIZE) { loff_t offset; loff_t io_end_offset = io_end->offset + io_end->size; @@ -221,7 +220,6 @@ static void ext4_end_bio(struct bio *bio, int error) if (error) buffer_io_error(bh); - clear_buffer_dirty(bh); } if (buffer_delay(bh)) partial_write = 1; @@ -257,7 +255,7 @@ static void ext4_end_bio(struct bio *bio, int error) (unsigned long long) io_end->offset, (long) io_end->size, (unsigned long long) - bio->bi_sector >> (inode->i_blkbits - 9)); + bi_sector >> (inode->i_blkbits - 9)); } /* Add the io_end to per-inode completed io list*/ @@ -380,6 +378,7 @@ int ext4_bio_write_page(struct ext4_io_submit *io, blocksize = 1 << inode->i_blkbits; + BUG_ON(!PageLocked(page)); BUG_ON(PageWriteback(page)); set_page_writeback(page); ClearPageError(page); @@ -397,12 +396,14 @@ int ext4_bio_write_page(struct ext4_io_submit *io, for (bh = head = page_buffers(page), block_start = 0; bh != head || !block_start; block_start = block_end, bh = bh->b_this_page) { + block_end = block_start + blocksize; if (block_start >= len) { clear_buffer_dirty(bh); set_buffer_uptodate(bh); continue; } + clear_buffer_dirty(bh); ret = io_submit_add_bh(io, io_page, inode, wbc, bh); if (ret) { /* From 12dfc73e1ddb44b2d23e0ca614b6ec50596adae0 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Mon, 7 Feb 2011 13:32:55 +0100 Subject: [PATCH 099/277] microblaze: Fix IRQ flag handling for MSR=0 Patch: Fix IRQ flag handling naming (sha1: f9ee29270c11dba7d0fe0b83ce47a4d8e8d2101) introduced problem on system with MSR=0. Signed-off-by: Michal Simek --- arch/microblaze/include/asm/irqflags.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/microblaze/include/asm/irqflags.h b/arch/microblaze/include/asm/irqflags.h index 5fd31905775d..c4532f032b3b 100644 --- a/arch/microblaze/include/asm/irqflags.h +++ b/arch/microblaze/include/asm/irqflags.h @@ -12,7 +12,7 @@ #include #include -#ifdef CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR +#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR static inline unsigned long arch_local_irq_save(void) { From 1649700408531ec64ae33af55a1091db50d1f7da Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Mon, 7 Feb 2011 11:29:43 +0100 Subject: [PATCH 100/277] microblaze: Fix asm compilation warning Microblaze ASM doesn't support hex values for mfs instructions. /tmp/ccwiXVmt.s: Assembler messages: /tmp/ccwiXVmt.s:19: Warning: ignoring operands: x00 Signed-off-by: Michal Simek --- arch/microblaze/kernel/cpu/pvr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/microblaze/kernel/cpu/pvr.c b/arch/microblaze/kernel/cpu/pvr.c index e01afa68273e..488c1ed24e38 100644 --- a/arch/microblaze/kernel/cpu/pvr.c +++ b/arch/microblaze/kernel/cpu/pvr.c @@ -27,7 +27,7 @@ register unsigned tmp __asm__("r3"); \ tmp = 0x0; /* Prevent warning about unused */ \ __asm__ __volatile__ ( \ - "mfs %0, rpvr" #pvrid ";" \ + "mfs %0, rpvr" #pvrid ";" \ : "=r" (tmp) : : "memory"); \ val = tmp; \ } @@ -54,7 +54,7 @@ int cpu_has_pvr(void) if (!(flags & PVR_MSR_BIT)) return 0; - get_single_pvr(0x00, pvr0); + get_single_pvr(0, pvr0); pr_debug("%s: pvr0 is 0x%08x\n", __func__, pvr0); if (pvr0 & PVR0_PVR_FULL_MASK) From 1f80a67da2da4180355bc36b2691f16684b194fd Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Mon, 7 Feb 2011 18:51:54 +0100 Subject: [PATCH 101/277] microblaze: Fix pte_update function Do not disable irq in asm but use irq macros. Systems with MSR=0 couldn't use pte_update function because msrclr was hardcoded. Signed-off-by: Michal Simek --- arch/microblaze/include/asm/pgtable.h | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-) diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h index b23f68075879..885574a73f01 100644 --- a/arch/microblaze/include/asm/pgtable.h +++ b/arch/microblaze/include/asm/pgtable.h @@ -411,20 +411,19 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) static inline unsigned long pte_update(pte_t *p, unsigned long clr, unsigned long set) { - unsigned long old, tmp, msr; + unsigned long flags, old, tmp; - __asm__ __volatile__("\ - msrclr %2, 0x2\n\ - nop\n\ - lw %0, %4, r0\n\ - andn %1, %0, %5\n\ - or %1, %1, %6\n\ - sw %1, %4, r0\n\ - mts rmsr, %2\n\ - nop" - : "=&r" (old), "=&r" (tmp), "=&r" (msr), "=m" (*p) - : "r" ((unsigned long)(p + 1) - 4), "r" (clr), "r" (set), "m" (*p) - : "cc"); + raw_local_irq_save(flags); + + __asm__ __volatile__( "lw %0, %2, r0 \n" + "andn %1, %0, %3 \n" + "or %1, %1, %4 \n" + "sw %1, %2, r0 \n" + : "=&r" (old), "=&r" (tmp) + : "r" ((unsigned long)(p + 1) - 4), "r" (clr), "r" (set) + : "cc"); + + raw_local_irq_restore(flags); return old; } From 0eb6aaf52965c14ba3ea245448c4806cfcd1d18c Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Fri, 4 Feb 2011 15:24:11 +0100 Subject: [PATCH 102/277] microblaze: Fix msr instruction detection Fix msr instructions detection. The current code just use msrclr for loading msr content and compare it with proper MSR content. If msrclr is not implemented r8 contains pc address. Previous code wanted to use MSR carry bit but if msrclr wasn't implemented carry wasn't cleared. Signed-off-by: Michal Simek --- arch/microblaze/kernel/head.S | 15 +++++++-------- arch/microblaze/kernel/setup.c | 4 ++-- 2 files changed, 9 insertions(+), 10 deletions(-) diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S index 0db20b5abb54..778a5ce2e4fc 100644 --- a/arch/microblaze/kernel/head.S +++ b/arch/microblaze/kernel/head.S @@ -62,15 +62,14 @@ real_start: andi r1, r1, ~2 mts rmsr, r1 /* - * Here is checking mechanism which check if Microblaze has msr instructions - * We load msr and compare it with previous r1 value - if is the same, - * msr instructions works if not - cpu don't have them. + * According to Xilinx, msrclr instruction behaves like 'mfs rX,rpc' + * if the msrclr instruction is not enabled. We use this to detect + * if the opcode is available, by issuing msrclr and then testing the result. + * r8 == 0 - msr instructions are implemented + * r8 != 0 - msr instructions are not implemented */ - /* r8=0 - I have msr instr, 1 - I don't have them */ - rsubi r0, r0, 1 /* set the carry bit */ - msrclr r0, 0x4 /* try to clear it */ - /* read the carry bit, r8 will be '0' if msrclr exists */ - addik r8, r0, 0 + msrclr r8, 0 /* clear nothing - just read msr for test */ + cmpu r8, r8, r1 /* r1 must contain msr reg content */ /* r7 may point to an FDT, or there may be one linked in. if it's in r7, we've got to save it away ASAP. diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c index bb1558e4b283..9312fbb37efd 100644 --- a/arch/microblaze/kernel/setup.c +++ b/arch/microblaze/kernel/setup.c @@ -161,11 +161,11 @@ void __init machine_early_init(const char *cmdline, unsigned int ram, #if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR if (msr) eprintk("!!!Your kernel has setup MSR instruction but " - "CPU don't have it %d\n", msr); + "CPU don't have it %x\n", msr); #else if (!msr) eprintk("!!!Your kernel not setup MSR instruction but " - "CPU have it %d\n", msr); + "CPU have it %x\n", msr); #endif for (src = __ivt_start; src < __ivt_end; src++, dst++) From dd3cb633078fb12e06ce6cebbdfbf55a7562e929 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Michael=20B=C3=BCsch?= Date: Fri, 4 Feb 2011 23:34:45 +0100 Subject: [PATCH 103/277] ssb-pcmcia: Fix parsing of invariants tuples This fixes parsing of the device invariants (MAC address) for PCMCIA SSB devices. ssb_pcmcia_do_get_invariants expects an iv pointer as data argument. Tested-by: dylan cristiani Signed-off-by: Michael Buesch Cc: stable@kernel.org Signed-off-by: John W. Linville --- drivers/ssb/pcmcia.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/ssb/pcmcia.c b/drivers/ssb/pcmcia.c index c7345dbf43fa..f8533795ee7f 100644 --- a/drivers/ssb/pcmcia.c +++ b/drivers/ssb/pcmcia.c @@ -733,7 +733,7 @@ int ssb_pcmcia_get_invariants(struct ssb_bus *bus, /* Fetch the vendor specific tuples. */ res = pcmcia_loop_tuple(bus->host_pcmcia, SSB_PCMCIA_CIS, - ssb_pcmcia_do_get_invariants, sprom); + ssb_pcmcia_do_get_invariants, iv); if ((res == 0) || (res == -ENOSPC)) return 0; From 3dd823e6b86407aed1a025041d8f1df77e43a9c8 Mon Sep 17 00:00:00 2001 From: Don Fry Date: Sun, 6 Feb 2011 09:29:45 -0800 Subject: [PATCH 104/277] iwlagn: Re-enable RF_KILL interrupt when down With commit 554d1d027b19265c4aa3f718b3126d2b86e09a08 only one RF_KILL interrupt will be seen by the driver when the interface is down. Re-enable the interrupt when it occurs to see all transitions. Signed-off-by: Don Fry Signed-off-by: Wey-Yi Guy Cc: stable@kernel.org Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-agn.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index f13a83a7e62b..a236b8b14da1 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -1157,6 +1157,9 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv) /* only Re-enable if diabled by irq */ if (test_bit(STATUS_INT_ENABLED, &priv->status)) iwl_enable_interrupts(priv); + /* Re-enable RF_KILL if it occurred */ + else if (handled & CSR_INT_BIT_RF_KILL) + iwl_enable_rfkill_int(priv); #ifdef CONFIG_IWLWIFI_DEBUG if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) { @@ -1371,6 +1374,9 @@ static void iwl_irq_tasklet(struct iwl_priv *priv) /* only Re-enable if diabled by irq */ if (test_bit(STATUS_INT_ENABLED, &priv->status)) iwl_enable_interrupts(priv); + /* Re-enable RF_KILL if it occurred */ + else if (handled & CSR_INT_BIT_RF_KILL) + iwl_enable_rfkill_int(priv); } /* the threshold ratio of actual_ack_cnt to expected_ack_cnt in percent */ From fc7c976dc7a565213393ce700d4a6105f037bf20 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 7 Feb 2011 12:05:00 +0100 Subject: [PATCH 105/277] mac80211: fix the skb cloned check in the tx path Using skb_header_cloned to check if it's safe to write to the skb is not enough - mac80211 also touches the tailroom of the skb. Initially this check was only used to increase a counter, however this commit changed the code to also skip skb data reallocation if no extra head/tailroom was needed: commit 4cd06a344db752f513437138953af191cbe9a691 mac80211: skip unnecessary pskb_expand_head calls It added a regression at least with iwl3945, which is fixed by this patch. Reported-by: Dmitry Torokhov Signed-off-by: Felix Fietkau Tested-by: Dmitry Torokhov Signed-off-by: John W. Linville --- net/mac80211/tx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index b64b42bc774b..b0beaa58246b 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1547,7 +1547,7 @@ static int ieee80211_skb_resize(struct ieee80211_local *local, skb_orphan(skb); } - if (skb_header_cloned(skb)) + if (skb_cloned(skb)) I802_DEBUG_INC(local->tx_expand_skb_head_cloned); else if (head_need || tail_need) I802_DEBUG_INC(local->tx_expand_skb_head); From 95c3043008ca8449feb96aba5481fe31c2ea750b Mon Sep 17 00:00:00 2001 From: andrew hendry Date: Mon, 7 Feb 2011 00:08:15 +0000 Subject: [PATCH 106/277] x25: possible skb leak on bad facilities Originally x25_parse_facilities returned -1 for an error 0 meaning 0 length facilities >0 the length of the facilities parsed. 5ef41308f94dc ("x25: Prevent crashing when parsing bad X.25 facilities") introduced more error checking in x25_parse_facilities however used 0 to indicate bad parsing a6331d6f9a429 ("memory corruption in X.25 facilities parsing") followed this further for DTE facilities, again using 0 for bad parsing. The meaning of 0 got confused in the callers. If the facilities are messed up we can't determine where the data starts. So patch makes all parsing errors return -1 and ensures callers close and don't use the skb further. Reported-by: Andy Whitcroft Signed-off-by: Andrew Hendry Signed-off-by: David S. Miller --- net/x25/x25_facilities.c | 28 +++++++++++++++++++--------- net/x25/x25_in.c | 14 +++++++++++--- 2 files changed, 30 insertions(+), 12 deletions(-) diff --git a/net/x25/x25_facilities.c b/net/x25/x25_facilities.c index 55187c8f6420..406207515b5e 100644 --- a/net/x25/x25_facilities.c +++ b/net/x25/x25_facilities.c @@ -27,9 +27,19 @@ #include #include -/* - * Parse a set of facilities into the facilities structures. Unrecognised - * facilities are written to the debug log file. +/** + * x25_parse_facilities - Parse facilities from skb into the facilities structs + * + * @skb: sk_buff to parse + * @facilities: Regular facilites, updated as facilities are found + * @dte_facs: ITU DTE facilities, updated as DTE facilities are found + * @vc_fac_mask: mask is updated with all facilities found + * + * Return codes: + * -1 - Parsing error, caller should drop call and clean up + * 0 - Parse OK, this skb has no facilities + * >0 - Parse OK, returns the length of the facilities header + * */ int x25_parse_facilities(struct sk_buff *skb, struct x25_facilities *facilities, struct x25_dte_facilities *dte_facs, unsigned long *vc_fac_mask) @@ -62,7 +72,7 @@ int x25_parse_facilities(struct sk_buff *skb, struct x25_facilities *facilities, switch (*p & X25_FAC_CLASS_MASK) { case X25_FAC_CLASS_A: if (len < 2) - return 0; + return -1; switch (*p) { case X25_FAC_REVERSE: if((p[1] & 0x81) == 0x81) { @@ -107,7 +117,7 @@ int x25_parse_facilities(struct sk_buff *skb, struct x25_facilities *facilities, break; case X25_FAC_CLASS_B: if (len < 3) - return 0; + return -1; switch (*p) { case X25_FAC_PACKET_SIZE: facilities->pacsize_in = p[1]; @@ -130,7 +140,7 @@ int x25_parse_facilities(struct sk_buff *skb, struct x25_facilities *facilities, break; case X25_FAC_CLASS_C: if (len < 4) - return 0; + return -1; printk(KERN_DEBUG "X.25: unknown facility %02X, " "values %02X, %02X, %02X\n", p[0], p[1], p[2], p[3]); @@ -139,18 +149,18 @@ int x25_parse_facilities(struct sk_buff *skb, struct x25_facilities *facilities, break; case X25_FAC_CLASS_D: if (len < p[1] + 2) - return 0; + return -1; switch (*p) { case X25_FAC_CALLING_AE: if (p[1] > X25_MAX_DTE_FACIL_LEN || p[1] <= 1) - return 0; + return -1; dte_facs->calling_len = p[2]; memcpy(dte_facs->calling_ae, &p[3], p[1] - 1); *vc_fac_mask |= X25_MASK_CALLING_AE; break; case X25_FAC_CALLED_AE: if (p[1] > X25_MAX_DTE_FACIL_LEN || p[1] <= 1) - return 0; + return -1; dte_facs->called_len = p[2]; memcpy(dte_facs->called_ae, &p[3], p[1] - 1); *vc_fac_mask |= X25_MASK_CALLED_AE; diff --git a/net/x25/x25_in.c b/net/x25/x25_in.c index f729f022be69..15de65f04719 100644 --- a/net/x25/x25_in.c +++ b/net/x25/x25_in.c @@ -91,10 +91,10 @@ static int x25_state1_machine(struct sock *sk, struct sk_buff *skb, int frametyp { struct x25_address source_addr, dest_addr; int len; + struct x25_sock *x25 = x25_sk(sk); switch (frametype) { case X25_CALL_ACCEPTED: { - struct x25_sock *x25 = x25_sk(sk); x25_stop_timer(sk); x25->condition = 0x00; @@ -113,14 +113,16 @@ static int x25_state1_machine(struct sock *sk, struct sk_buff *skb, int frametyp &dest_addr); if (len > 0) skb_pull(skb, len); + else if (len < 0) + goto out_clear; len = x25_parse_facilities(skb, &x25->facilities, &x25->dte_facilities, &x25->vc_facil_mask); if (len > 0) skb_pull(skb, len); - else - return -1; + else if (len < 0) + goto out_clear; /* * Copy any Call User Data. */ @@ -144,6 +146,12 @@ static int x25_state1_machine(struct sock *sk, struct sk_buff *skb, int frametyp } return 0; + +out_clear: + x25_write_internal(sk, X25_CLEAR_REQUEST); + x25->state = X25_STATE_2; + x25_start_t23timer(sk); + return 0; } /* From e91ece5590b3c728624ab57043fc7a05069c604a Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Mon, 7 Feb 2011 19:21:48 -0500 Subject: [PATCH 107/277] md_make_request: don't touch the bio after calling make_request md_make_request was calling bio_sectors() for part_stat_add after it was calling the make_request function. This is bad because the make_request function can free the bio and because the bi_size field can change around. The fix here was suggested by Jens Axboe. It saves the sector count before the make_request call. I hit this with CONFIG_DEBUG_PAGEALLOC turned on while trying to break his pretty fusionio card. Cc: Signed-off-by: Chris Mason Signed-off-by: NeilBrown --- drivers/md/md.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index 1138d1053e9a..0cc30ecda4c1 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -287,6 +287,7 @@ static int md_make_request(struct request_queue *q, struct bio *bio) mddev_t *mddev = q->queuedata; int rv; int cpu; + unsigned int sectors; if (mddev == NULL || mddev->pers == NULL || !mddev->ready) { @@ -311,12 +312,16 @@ static int md_make_request(struct request_queue *q, struct bio *bio) atomic_inc(&mddev->active_io); rcu_read_unlock(); + /* + * save the sectors now since our bio can + * go away inside make_request + */ + sectors = bio_sectors(bio); rv = mddev->pers->make_request(mddev, bio); cpu = part_stat_lock(); part_stat_inc(cpu, &mddev->gendisk->part0, ios[rw]); - part_stat_add(cpu, &mddev->gendisk->part0, sectors[rw], - bio_sectors(bio)); + part_stat_add(cpu, &mddev->gendisk->part0, sectors[rw], sectors); part_stat_unlock(); if (atomic_dec_and_test(&mddev->active_io) && mddev->suspended) From 531c9da8c854c5b075383253a57fdd4e0be82e99 Mon Sep 17 00:00:00 2001 From: Sven Eckelmann Date: Sun, 6 Feb 2011 23:26:43 +0000 Subject: [PATCH 108/277] batman-adv: Linearize fragment packets before merge We access the data inside the skbs of two fragments directly using memmove during the merge. The data of the skb could span over multiple skb pages. An direct access without knowledge about the pages would lead to an invalid memory access. Signed-off-by: Sven Eckelmann [lindner_marek@yahoo.de: Move return from function to the end] Signed-off-by: Marek Lindner --- net/batman-adv/unicast.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/net/batman-adv/unicast.c b/net/batman-adv/unicast.c index ee41fef04b21..d1a611322549 100644 --- a/net/batman-adv/unicast.c +++ b/net/batman-adv/unicast.c @@ -50,12 +50,12 @@ static struct sk_buff *frag_merge_packet(struct list_head *head, skb = tfp->skb; } + if (skb_linearize(skb) < 0 || skb_linearize(tmp_skb) < 0) + goto err; + skb_pull(tmp_skb, sizeof(struct unicast_frag_packet)); - if (pskb_expand_head(skb, 0, tmp_skb->len, GFP_ATOMIC) < 0) { - /* free buffered skb, skb will be freed later */ - kfree_skb(tfp->skb); - return NULL; - } + if (pskb_expand_head(skb, 0, tmp_skb->len, GFP_ATOMIC) < 0) + goto err; /* move free entry to end */ tfp->skb = NULL; @@ -70,6 +70,11 @@ static struct sk_buff *frag_merge_packet(struct list_head *head, unicast_packet->packet_type = BAT_UNICAST; return skb; + +err: + /* free buffered skb, skb will be freed later */ + kfree_skb(tfp->skb); + return NULL; } static void frag_create_entry(struct list_head *head, struct sk_buff *skb) From 02214dc5461c36da26a34014cab4e1bb484edba2 Mon Sep 17 00:00:00 2001 From: Krzysztof Wojcik Date: Fri, 4 Feb 2011 14:18:26 +0100 Subject: [PATCH 109/277] FIX: md: process hangs at wait_barrier after 0->10 takeover Following symptoms were observed: 1. After raid0->raid10 takeover operation we have array with 2 missing disks. When we add disk for rebuild, recovery process starts as expected but it does not finish- it stops at about 90%, md126_resync process hangs in "D" state. 2. Similar behavior is when we have mounted raid0 array and we execute takeover to raid10. After this when we try to unmount array- it causes process umount hangs in "D" In scenarios above processes hang at the same function- wait_barrier in raid10.c. Process waits in macro "wait_event_lock_irq" until the "!conf->barrier" condition will be true. In scenarios above it never happens. Reason was that at the end of level_store, after calling pers->run, we call mddev_resume. This calls pers->quiesce(mddev, 0) with RAID10, that calls lower_barrier. However raise_barrier hadn't been called on that 'conf' yet, so conf->barrier becomes negative, which is bad. This patch introduces setting conf->barrier=1 after takeover operation. It prevents to become barrier negative after call lower_barrier(). Signed-off-by: Krzysztof Wojcik Signed-off-by: NeilBrown --- drivers/md/raid10.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 69b659544390..3b607b28741b 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -2463,11 +2463,13 @@ static void *raid10_takeover_raid0(mddev_t *mddev) mddev->recovery_cp = MaxSector; conf = setup_conf(mddev); - if (!IS_ERR(conf)) + if (!IS_ERR(conf)) { list_for_each_entry(rdev, &mddev->disks, same_set) if (rdev->raid_disk >= 0) rdev->new_raid_disk = rdev->raid_disk * 2; - + conf->barrier = 1; + } + return conf; } From 73020415564a3fe4931f3f70f500a5db13eea946 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Sat, 22 Jan 2011 22:35:38 +0100 Subject: [PATCH 110/277] m68knommu: Remove dependencies on nonexistent M68KNOMMU M68KNOMMU is set nowhere. Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Ungerer --- drivers/net/can/mscan/Kconfig | 2 +- lib/Kconfig.debug | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/can/mscan/Kconfig b/drivers/net/can/mscan/Kconfig index 27d1d398e25e..d38706958af6 100644 --- a/drivers/net/can/mscan/Kconfig +++ b/drivers/net/can/mscan/Kconfig @@ -1,5 +1,5 @@ config CAN_MSCAN - depends on CAN_DEV && (PPC || M68K || M68KNOMMU) + depends on CAN_DEV && (PPC || M68K) tristate "Support for Freescale MSCAN based chips" ---help--- The Motorola Scalable Controller Area Network (MSCAN) definition diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 3967c2356e37..2b97418c67e2 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -805,7 +805,7 @@ config ARCH_WANT_FRAME_POINTERS config FRAME_POINTER bool "Compile the kernel with frame pointers" depends on DEBUG_KERNEL && \ - (CRIS || M68K || M68KNOMMU || FRV || UML || \ + (CRIS || M68K || FRV || UML || \ AVR32 || SUPERH || BLACKFIN || MN10300) || \ ARCH_WANT_FRAME_POINTERS default y if (DEBUG_INFO && UML) || ARCH_WANT_FRAME_POINTERS From 9b9c63ff1f3b09af8e0c66180a904bdbebe92634 Mon Sep 17 00:00:00 2001 From: Philippe De Muyter Date: Sat, 22 Jan 2011 00:21:24 +0100 Subject: [PATCH 111/277] m68knommu: fix m548x_wdt.c compilation after headers renaming m548x headers were renamed to m54xx, but m548x_wdt.c still uses the old names. Fix that. Signed-off-by: Philippe De Muyter Signed-off-by: Greg Ungerer --- drivers/watchdog/m548x_wdt.c | 50 ++++++++++++++++++------------------ 1 file changed, 25 insertions(+), 25 deletions(-) diff --git a/drivers/watchdog/m548x_wdt.c b/drivers/watchdog/m548x_wdt.c index cabbcfe1c847..4d43286074aa 100644 --- a/drivers/watchdog/m548x_wdt.c +++ b/drivers/watchdog/m548x_wdt.c @@ -1,7 +1,7 @@ /* - * drivers/watchdog/m548x_wdt.c + * drivers/watchdog/m54xx_wdt.c * - * Watchdog driver for ColdFire MCF548x processors + * Watchdog driver for ColdFire MCF547x & MCF548x processors * Copyright 2010 (c) Philippe De Muyter * * Adapted from the IXP4xx watchdog driver, which carries these notices: @@ -29,8 +29,8 @@ #include #include -#include -#include +#include +#include static int nowayout = WATCHDOG_NOWAYOUT; static unsigned int heartbeat = 30; /* (secs) Default is 0.5 minute */ @@ -76,7 +76,7 @@ static void wdt_keepalive(void) __raw_writel(gms0, MCF_MBAR + MCF_GPT_GMS0); } -static int m548x_wdt_open(struct inode *inode, struct file *file) +static int m54xx_wdt_open(struct inode *inode, struct file *file) { if (test_and_set_bit(WDT_IN_USE, &wdt_status)) return -EBUSY; @@ -86,7 +86,7 @@ static int m548x_wdt_open(struct inode *inode, struct file *file) return nonseekable_open(inode, file); } -static ssize_t m548x_wdt_write(struct file *file, const char *data, +static ssize_t m54xx_wdt_write(struct file *file, const char *data, size_t len, loff_t *ppos) { if (len) { @@ -112,10 +112,10 @@ static ssize_t m548x_wdt_write(struct file *file, const char *data, static const struct watchdog_info ident = { .options = WDIOF_MAGICCLOSE | WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING, - .identity = "Coldfire M548x Watchdog", + .identity = "Coldfire M54xx Watchdog", }; -static long m548x_wdt_ioctl(struct file *file, unsigned int cmd, +static long m54xx_wdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { int ret = -ENOTTY; @@ -161,7 +161,7 @@ static long m548x_wdt_ioctl(struct file *file, unsigned int cmd, return ret; } -static int m548x_wdt_release(struct inode *inode, struct file *file) +static int m54xx_wdt_release(struct inode *inode, struct file *file) { if (test_bit(WDT_OK_TO_CLOSE, &wdt_status)) wdt_disable(); @@ -177,45 +177,45 @@ static int m548x_wdt_release(struct inode *inode, struct file *file) } -static const struct file_operations m548x_wdt_fops = { +static const struct file_operations m54xx_wdt_fops = { .owner = THIS_MODULE, .llseek = no_llseek, - .write = m548x_wdt_write, - .unlocked_ioctl = m548x_wdt_ioctl, - .open = m548x_wdt_open, - .release = m548x_wdt_release, + .write = m54xx_wdt_write, + .unlocked_ioctl = m54xx_wdt_ioctl, + .open = m54xx_wdt_open, + .release = m54xx_wdt_release, }; -static struct miscdevice m548x_wdt_miscdev = { +static struct miscdevice m54xx_wdt_miscdev = { .minor = WATCHDOG_MINOR, .name = "watchdog", - .fops = &m548x_wdt_fops, + .fops = &m54xx_wdt_fops, }; -static int __init m548x_wdt_init(void) +static int __init m54xx_wdt_init(void) { if (!request_mem_region(MCF_MBAR + MCF_GPT_GCIR0, 4, - "Coldfire M548x Watchdog")) { + "Coldfire M54xx Watchdog")) { printk(KERN_WARNING - "Coldfire M548x Watchdog : I/O region busy\n"); + "Coldfire M54xx Watchdog : I/O region busy\n"); return -EBUSY; } printk(KERN_INFO "ColdFire watchdog driver is loaded.\n"); - return misc_register(&m548x_wdt_miscdev); + return misc_register(&m54xx_wdt_miscdev); } -static void __exit m548x_wdt_exit(void) +static void __exit m54xx_wdt_exit(void) { - misc_deregister(&m548x_wdt_miscdev); + misc_deregister(&m54xx_wdt_miscdev); release_mem_region(MCF_MBAR + MCF_GPT_GCIR0, 4); } -module_init(m548x_wdt_init); -module_exit(m548x_wdt_exit); +module_init(m54xx_wdt_init); +module_exit(m54xx_wdt_exit); MODULE_AUTHOR("Philippe De Muyter "); -MODULE_DESCRIPTION("Coldfire M548x Watchdog"); +MODULE_DESCRIPTION("Coldfire M54xx Watchdog"); module_param(heartbeat, int, 0); MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds (default 30s)"); From 4157a04d5d7def8661559cd98eb285a520d50075 Mon Sep 17 00:00:00 2001 From: Philippe De Muyter Date: Sat, 22 Jan 2011 00:21:25 +0100 Subject: [PATCH 112/277] m68knommu: Rename m548x_wdt.c to m54xx_wdt.c All m548x files were renamed to m54xx, except m548x_wdt.c. Fix that. Signed-off-by: Philippe De Muyter Signed-off-by: Greg Ungerer --- drivers/watchdog/Kconfig | 6 +++--- drivers/watchdog/Makefile | 2 +- drivers/watchdog/{m548x_wdt.c => m54xx_wdt.c} | 0 3 files changed, 4 insertions(+), 4 deletions(-) rename drivers/watchdog/{m548x_wdt.c => m54xx_wdt.c} (100%) diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index 2e2400e7322e..31649b7b672f 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -862,12 +862,12 @@ config SBC_EPX_C3_WATCHDOG # M68K Architecture -config M548x_WATCHDOG - tristate "MCF548x watchdog support" +config M54xx_WATCHDOG + tristate "MCF54xx watchdog support" depends on M548x help To compile this driver as a module, choose M here: the - module will be called m548x_wdt. + module will be called m54xx_wdt. # MIPS Architecture diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile index dd776651917c..20e44c4782b3 100644 --- a/drivers/watchdog/Makefile +++ b/drivers/watchdog/Makefile @@ -106,7 +106,7 @@ obj-$(CONFIG_SBC_EPX_C3_WATCHDOG) += sbc_epx_c3.o # M32R Architecture # M68K Architecture -obj-$(CONFIG_M548x_WATCHDOG) += m548x_wdt.o +obj-$(CONFIG_M54xx_WATCHDOG) += m54xx_wdt.o # MIPS Architecture obj-$(CONFIG_ATH79_WDT) += ath79_wdt.o diff --git a/drivers/watchdog/m548x_wdt.c b/drivers/watchdog/m54xx_wdt.c similarity index 100% rename from drivers/watchdog/m548x_wdt.c rename to drivers/watchdog/m54xx_wdt.c From b3e338de7e11d1e5bc4eca12833d894d1838b510 Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Thu, 3 Feb 2011 11:17:55 +1000 Subject: [PATCH 113/277] m68knommu: fix use of un-defined _TIF_WORK_MASK The _TIF_WORK_MASK definition was removed in the clean up of MMU and non-MMU arch/m68k/include/asm/thread_info*.h files (this was commit cddafa3500fde4a07e5bf899ec97a04069f8f7ce, "merge MMU and non-MMU thread_info.h"). It didn't get cleaned out of the entry.S code for the 68328 and 68360 based platforms. And it was replaced by a hard coded constant mask for coldfire platforms. There is currently no need to mask any of these bits, so fix all uses (and former uses) to check for any non-zero value. Signed-off-by: Greg Ungerer --- arch/m68knommu/platform/68328/entry.S | 1 - arch/m68knommu/platform/68360/entry.S | 1 - arch/m68knommu/platform/coldfire/entry.S | 1 - 3 files changed, 3 deletions(-) diff --git a/arch/m68knommu/platform/68328/entry.S b/arch/m68knommu/platform/68328/entry.S index 240a7a6e25c8..676960cf022a 100644 --- a/arch/m68knommu/platform/68328/entry.S +++ b/arch/m68knommu/platform/68328/entry.S @@ -108,7 +108,6 @@ Luser_return: movel %d1,%a2 1: move %a2@(TI_FLAGS),%d1 /* thread_info->flags */ - andl #_TIF_WORK_MASK,%d1 jne Lwork_to_do RESTORE_ALL diff --git a/arch/m68knommu/platform/68360/entry.S b/arch/m68knommu/platform/68360/entry.S index 8a28788c0eea..46c1b18c9dcb 100644 --- a/arch/m68knommu/platform/68360/entry.S +++ b/arch/m68knommu/platform/68360/entry.S @@ -104,7 +104,6 @@ Luser_return: movel %d1,%a2 1: move %a2@(TI_FLAGS),%d1 /* thread_info->flags */ - andl #_TIF_WORK_MASK,%d1 jne Lwork_to_do RESTORE_ALL diff --git a/arch/m68knommu/platform/coldfire/entry.S b/arch/m68knommu/platform/coldfire/entry.S index 4ddfc3da70d8..5837cf080b6d 100644 --- a/arch/m68knommu/platform/coldfire/entry.S +++ b/arch/m68knommu/platform/coldfire/entry.S @@ -138,7 +138,6 @@ Luser_return: andl #-THREAD_SIZE,%d1 /* at base of kernel stack */ movel %d1,%a0 movel %a0@(TI_FLAGS),%d1 /* get thread_info->flags */ - andl #0xefff,%d1 jne Lwork_to_do /* still work to do */ Lreturn: From 1cdfa9f34acb9780e0fe7b8a41fb1a885ab94735 Mon Sep 17 00:00:00 2001 From: Joseph Teichman Date: Tue, 8 Feb 2011 01:22:36 -0500 Subject: [PATCH 114/277] ALSA: usbaudio - Enable the E-MU 0204 USB Signed-off-by: Joseph Teichman Signed-off-by: Takashi Iwai --- sound/usb/mixer.c | 4 ++-- sound/usb/quirks-table.h | 7 +++++++ sound/usb/quirks.c | 3 ++- 3 files changed, 11 insertions(+), 3 deletions(-) diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index 7df89b3d7ded..85af6051b52d 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -95,7 +95,7 @@ enum { }; -/*E-mu 0202(0404) eXtension Unit(XU) control*/ +/*E-mu 0202/0404/0204 eXtension Unit(XU) control*/ enum { USB_XU_CLOCK_RATE = 0xe301, USB_XU_CLOCK_SOURCE = 0xe302, @@ -1566,7 +1566,7 @@ static int build_audio_procunit(struct mixer_build *state, int unitid, void *raw cval->initialized = 1; } else { if (type == USB_XU_CLOCK_RATE) { - /* E-Mu USB 0404/0202/TrackerPre + /* E-Mu USB 0404/0202/TrackerPre/0204 * samplerate control quirk */ cval->min = 0; diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h index 35999874d301..921a86fd9884 100644 --- a/sound/usb/quirks-table.h +++ b/sound/usb/quirks-table.h @@ -79,6 +79,13 @@ .idProduct = 0x3f0a, .bInterfaceClass = USB_CLASS_AUDIO, }, +{ + /* E-Mu 0204 USB */ + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x041e, + .idProduct = 0x3f19, + .bInterfaceClass = USB_CLASS_AUDIO, +}, /* * Logitech QuickCam: bDeviceClass is vendor-specific, so generic interface diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index cf8bf088394b..e314cdb85003 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -532,7 +532,7 @@ int snd_usb_is_big_endian_format(struct snd_usb_audio *chip, struct audioformat } /* - * For E-Mu 0404USB/0202USB/TrackerPre sample rate should be set for device, + * For E-Mu 0404USB/0202USB/TrackerPre/0204 sample rate should be set for device, * not for interface. */ @@ -589,6 +589,7 @@ void snd_usb_set_format_quirk(struct snd_usb_substream *subs, case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */ case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */ case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */ + case USB_ID(0x041e, 0x3f19): /* E-Mu 0204 USB */ set_format_emu_quirk(subs, fmt); break; } From 463342741222c79469303cdab8ce99c8bc2d80e8 Mon Sep 17 00:00:00 2001 From: Jesse Brandeburg Date: Wed, 2 Feb 2011 10:19:55 +0000 Subject: [PATCH 115/277] e1000e: tx_timeout should not increment for non-hang events Currently the driver increments the tx_timeout counter (an error counter) when simply resetting the part with outstanding transmit work pending. This is an unnecessary count of an error, when all we should be doing is just resetting the part and discarding the transmits. With this change the only increment of tx_timeout is when the stack calls the watchdog reset function due to a true Tx timeout. Signed-off-by: Jesse Brandeburg Reviewed-by: Bruce Allan Tested-by: Jeff Pieper Signed-off-by: Jeff Kirsher --- drivers/net/e1000e/netdev.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index 1c18f26b0812..3065870cf2a7 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -4309,7 +4309,6 @@ link_up: * to get done, so reset controller to flush Tx. * (Do the reset outside of interrupt context). */ - adapter->tx_timeout_count++; schedule_work(&adapter->reset_task); /* return immediately since reset is imminent */ return; From cf8e09b06d7ac05de4b6a3f1ee563979e36a46ed Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Mon, 24 Jan 2011 14:48:03 +0000 Subject: [PATCH 116/277] e1000: add support for Marvell Alaska M88E1118R PHY This patch adds support for Marvell Alask M88E188R PHY chips. Support for other M88* PHYs is already there, so there is nothing more to add than its PHY id. CC: Dirk Brandewie Signed-off-by: Florian Fainelli Acked-by: Jesse Brandeburg Signed-off-by: Jeff Kirsher --- drivers/net/e1000/e1000_hw.c | 4 +++- drivers/net/e1000/e1000_hw.h | 1 + 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/e1000/e1000_hw.c b/drivers/net/e1000/e1000_hw.c index aed223b1b897..7501d977d992 100644 --- a/drivers/net/e1000/e1000_hw.c +++ b/drivers/net/e1000/e1000_hw.c @@ -124,6 +124,7 @@ static s32 e1000_set_phy_type(struct e1000_hw *hw) case M88E1000_I_PHY_ID: case M88E1011_I_PHY_ID: case M88E1111_I_PHY_ID: + case M88E1118_E_PHY_ID: hw->phy_type = e1000_phy_m88; break; case IGP01E1000_I_PHY_ID: @@ -3222,7 +3223,8 @@ static s32 e1000_detect_gig_phy(struct e1000_hw *hw) break; case e1000_ce4100: if ((hw->phy_id == RTL8211B_PHY_ID) || - (hw->phy_id == RTL8201N_PHY_ID)) + (hw->phy_id == RTL8201N_PHY_ID) || + (hw->phy_id == M88E1118_E_PHY_ID)) match = true; break; case e1000_82541: diff --git a/drivers/net/e1000/e1000_hw.h b/drivers/net/e1000/e1000_hw.h index 196eeda2dd6c..c70b23d52284 100644 --- a/drivers/net/e1000/e1000_hw.h +++ b/drivers/net/e1000/e1000_hw.h @@ -2917,6 +2917,7 @@ struct e1000_host_command_info { #define M88E1000_14_PHY_ID M88E1000_E_PHY_ID #define M88E1011_I_REV_4 0x04 #define M88E1111_I_PHY_ID 0x01410CC0 +#define M88E1118_E_PHY_ID 0x01410E40 #define L1LXT971A_PHY_ID 0x001378E0 #define RTL8211B_PHY_ID 0x001CC910 From 2c4db944a29c624dd5e4b9c44fc6c9901831d2d5 Mon Sep 17 00:00:00 2001 From: Emil Tantilov Date: Wed, 5 Jan 2011 07:09:41 +0000 Subject: [PATCH 117/277] ixgbe: fix variable set but not used warnings by gcc 4.6 Caught with gcc 4.6 -Wunused-but-set-variable Remove unused napi_vectors variable. Fix the use of reset_bit in ixgbe_reset_hw_X540() Signed-off-by: Emil Tantilov Tested-by: Stephen Ko Signed-off-by: Jeff Kirsher --- drivers/net/ixgbe/ixgbe_main.c | 3 --- drivers/net/ixgbe/ixgbe_x540.c | 6 +++--- 2 files changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 602078b84892..44a1cf040c3e 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -4863,16 +4863,13 @@ static int ixgbe_alloc_q_vectors(struct ixgbe_adapter *adapter) { int q_idx, num_q_vectors; struct ixgbe_q_vector *q_vector; - int napi_vectors; int (*poll)(struct napi_struct *, int); if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; - napi_vectors = adapter->num_rx_queues; poll = &ixgbe_clean_rxtx_many; } else { num_q_vectors = 1; - napi_vectors = 1; poll = &ixgbe_poll; } diff --git a/drivers/net/ixgbe/ixgbe_x540.c b/drivers/net/ixgbe/ixgbe_x540.c index 3a8923993ce3..f2518b01067d 100644 --- a/drivers/net/ixgbe/ixgbe_x540.c +++ b/drivers/net/ixgbe/ixgbe_x540.c @@ -133,17 +133,17 @@ static s32 ixgbe_reset_hw_X540(struct ixgbe_hw *hw) } ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL); - IXGBE_WRITE_REG(hw, IXGBE_CTRL, (ctrl | IXGBE_CTRL_RST)); + IXGBE_WRITE_REG(hw, IXGBE_CTRL, (ctrl | reset_bit)); IXGBE_WRITE_FLUSH(hw); /* Poll for reset bit to self-clear indicating reset is complete */ for (i = 0; i < 10; i++) { udelay(1); ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL); - if (!(ctrl & IXGBE_CTRL_RST)) + if (!(ctrl & reset_bit)) break; } - if (ctrl & IXGBE_CTRL_RST) { + if (ctrl & reset_bit) { status = IXGBE_ERR_RESET_FAILED; hw_dbg(hw, "Reset polling failed to complete.\n"); } From a124339ad28389093ed15eca990d39c51c5736cc Mon Sep 17 00:00:00 2001 From: Don Skidmore Date: Tue, 18 Jan 2011 22:53:47 +0000 Subject: [PATCH 118/277] ixgbe: fix for 82599 erratum on Header Splitting We have found a hardware erratum on 82599 hardware that can lead to unpredictable behavior when Header Splitting mode is enabled. So we are no longer enabling this feature on affected hardware. Please see the 82599 Specification Update for more information. CC: stable@kernel.org Signed-off-by: Don Skidmore Tested-by: Stephen Ko Signed-off-by: Jeff Kirsher --- drivers/net/ixgbe/ixgbe_main.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 44a1cf040c3e..d6c21a386791 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -3176,9 +3176,16 @@ static void ixgbe_set_rx_buffer_len(struct ixgbe_adapter *adapter) u32 mhadd, hlreg0; /* Decide whether to use packet split mode or not */ + /* On by default */ + adapter->flags |= IXGBE_FLAG_RX_PS_ENABLED; + /* Do not use packet split if we're in SR-IOV Mode */ - if (!adapter->num_vfs) - adapter->flags |= IXGBE_FLAG_RX_PS_ENABLED; + if (adapter->num_vfs) + adapter->flags &= ~IXGBE_FLAG_RX_PS_ENABLED; + + /* Disable packet split due to 82599 erratum #45 */ + if (hw->mac.type == ixgbe_mac_82599EB) + adapter->flags &= ~IXGBE_FLAG_RX_PS_ENABLED; /* Set the RX buffer length according to the mode */ if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) { From 96cc637235892a102fb829218adac048bd730ab7 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Wed, 19 Jan 2011 18:33:05 +0000 Subject: [PATCH 119/277] ixgbe: limit VF access to network traffic This change fixes VM pool allocation issues based on MAC address filtering, as well as limits the scope of VF access to promiscuous mode. Signed-off-by: Alexander Duyck Acked-by: Greg Rose Signed-off-by: Jeff Kirsher --- drivers/net/ixgbe/ixgbe_common.c | 3 +++ drivers/net/ixgbe/ixgbe_sriov.c | 2 -- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/ixgbe/ixgbe_common.c b/drivers/net/ixgbe/ixgbe_common.c index d5ede2df3e42..ebbda7d15254 100644 --- a/drivers/net/ixgbe/ixgbe_common.c +++ b/drivers/net/ixgbe/ixgbe_common.c @@ -1370,6 +1370,9 @@ s32 ixgbe_init_rx_addrs_generic(struct ixgbe_hw *hw) hw_dbg(hw, " New MAC Addr =%pM\n", hw->mac.addr); hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV); + + /* clear VMDq pool/queue selection for RAR 0 */ + hw->mac.ops.clear_vmdq(hw, 0, IXGBE_CLEAR_VMDQ_ALL); } hw->addr_ctrl.overflow_promisc = 0; diff --git a/drivers/net/ixgbe/ixgbe_sriov.c b/drivers/net/ixgbe/ixgbe_sriov.c index 47b15738b009..187b3a16ec1f 100644 --- a/drivers/net/ixgbe/ixgbe_sriov.c +++ b/drivers/net/ixgbe/ixgbe_sriov.c @@ -110,12 +110,10 @@ static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid, return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add); } - static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe) { u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf)); vmolr |= (IXGBE_VMOLR_ROMPE | - IXGBE_VMOLR_ROPE | IXGBE_VMOLR_BAM); if (aupe) vmolr |= IXGBE_VMOLR_AUPE; From fbbea32b6ae2ecce4aa80207b5c1d29496c4778d Mon Sep 17 00:00:00 2001 From: Don Skidmore Date: Wed, 26 Jan 2011 06:04:17 +0000 Subject: [PATCH 120/277] ixgbe: cleanup variable initialization The ixgbe_fcoe_ddp_get function wasn't initializing one of its variables and this was producing compiler warnings. This patch cleans that up. Signed-off-by: Don Skidmore Tested-by: Stephen Ko Signed-off-by: Jeff Kirsher --- drivers/net/ixgbe/ixgbe_fcoe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ixgbe/ixgbe_fcoe.c b/drivers/net/ixgbe/ixgbe_fcoe.c index 6342d4859790..8753980668c7 100644 --- a/drivers/net/ixgbe/ixgbe_fcoe.c +++ b/drivers/net/ixgbe/ixgbe_fcoe.c @@ -165,7 +165,7 @@ int ixgbe_fcoe_ddp_get(struct net_device *netdev, u16 xid, unsigned int thisoff = 0; unsigned int thislen = 0; u32 fcbuff, fcdmarw, fcfltrw; - dma_addr_t addr; + dma_addr_t addr = 0; if (!netdev || !sgl) return 0; From 310e5ca82a6f2e39b55eed1d9e3137c350f0b3b0 Mon Sep 17 00:00:00 2001 From: Don Skidmore Date: Wed, 26 Jan 2011 06:04:37 +0000 Subject: [PATCH 121/277] ixgbe: update version string This will synchronize the version string with that of the latest source forge driver which shares its functionality. Signed-off-by: Don Skidmore Signed-off-by: Jeff Kirsher --- drivers/net/ixgbe/ixgbe_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index d6c21a386791..fbae703b46d7 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -52,7 +52,7 @@ char ixgbe_driver_name[] = "ixgbe"; static const char ixgbe_driver_string[] = "Intel(R) 10 Gigabit PCI Express Network Driver"; -#define DRV_VERSION "3.0.12-k2" +#define DRV_VERSION "3.2.9-k2" const char ixgbe_driver_version[] = DRV_VERSION; static char ixgbe_copyright[] = "Copyright (c) 1999-2010 Intel Corporation."; From 7ff207928eb0761fa6b6c39eda82ac07a5241acf Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Tue, 8 Feb 2011 15:18:00 +0100 Subject: [PATCH 122/277] Revert "lockdep, timer: Fix del_timer_sync() annotation" Both attempts at trying to allow softirq usage for del_timer_sync() failed (produced bogus warnings), so revert the commit for this release: f266a5110d45: lockdep, timer: Fix del_timer_sync() annotation and try again later. Reported-by: Borislav Petkov Signed-off-by: Peter Zijlstra Cc: Linus Torvalds Cc: Yong Zhang Cc: Thomas Gleixner LKML-Reference: <1297174680.13327.107.camel@laptop> Signed-off-by: Ingo Molnar --- kernel/timer.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/kernel/timer.c b/kernel/timer.c index d53ce66daea0..d6459923d245 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -959,7 +959,7 @@ EXPORT_SYMBOL(try_to_del_timer_sync); * * Synchronization rules: Callers must prevent restarting of the timer, * otherwise this function is meaningless. It must not be called from - * hardirq contexts. The caller must not hold locks which would prevent + * interrupt contexts. The caller must not hold locks which would prevent * completion of the timer's handler. The timer's handler must not call * add_timer_on(). Upon exit the timer is not queued and the handler is * not running on any CPU. @@ -971,12 +971,10 @@ int del_timer_sync(struct timer_list *timer) #ifdef CONFIG_LOCKDEP unsigned long flags; - raw_local_irq_save(flags); - local_bh_disable(); + local_irq_save(flags); lock_map_acquire(&timer->lockdep_map); lock_map_release(&timer->lockdep_map); - _local_bh_enable(); - raw_local_irq_restore(flags); + local_irq_restore(flags); #endif /* * don't use it in hardirq context, because it From 11839aed21881d7edd65dd79f22a8eb18426f672 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 8 Feb 2011 17:25:49 +0100 Subject: [PATCH 123/277] ALSA: hda - Fix missing CA initialization for HDMI/DP The commit 53d7d69d8ffdfa60c5b66cc2e9ee0774aaaef5c0 ALSA: hdmi - support infoframe for DisplayPort dropped the initialization of CA field accidentally. This resulted in only two-channel LPCM mode on Nvidia machines. Reference: kernel bug 28592 https://bugzilla.kernel.org/show_bug.cgi?id=28592 Signed-off-by: Takashi Iwai Cc: --- sound/pci/hda/patch_hdmi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 2d5b83fa8d24..a58767736727 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -642,6 +642,7 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec, hda_nid_t nid, hdmi_ai->ver = 0x01; hdmi_ai->len = 0x0a; hdmi_ai->CC02_CT47 = channels - 1; + hdmi_ai->CA = ca; hdmi_checksum_audio_infoframe(hdmi_ai); } else if (spec->sink_eld[i].conn_type == 1) { /* DisplayPort */ struct dp_audio_infoframe *dp_ai; @@ -651,6 +652,7 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec, hda_nid_t nid, dp_ai->len = 0x1b; dp_ai->ver = 0x11 << 2; dp_ai->CC02_CT47 = channels - 1; + dp_ai->CA = ca; } else { snd_printd("HDMI: unknown connection type at pin %d\n", pin_nid); From 2770c5ea501be69989a7acf54ec4cb3554c47191 Mon Sep 17 00:00:00 2001 From: Amit Shah Date: Mon, 31 Jan 2011 13:06:36 +0530 Subject: [PATCH 124/277] virtio: console: Wake up outvq on host notifications The outvq needs to be woken up on host notifications so that buffers consumed by the host can be reclaimed, outvq freed, and application writes may proceed again. The need for this is now finally noticed when I have qemu patches ready to use nonblocking IO and flow control. CC: Hans de Goede CC: stable@kernel.org Signed-off-by: Amit Shah Signed-off-by: Rusty Russell Acked-by: Hans de Goede --- drivers/tty/hvc/virtio_console.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/tty/hvc/virtio_console.c b/drivers/tty/hvc/virtio_console.c index 896a2ced1d27..ad2520b1e03f 100644 --- a/drivers/tty/hvc/virtio_console.c +++ b/drivers/tty/hvc/virtio_console.c @@ -1462,6 +1462,17 @@ static void control_work_handler(struct work_struct *work) spin_unlock(&portdev->cvq_lock); } +static void out_intr(struct virtqueue *vq) +{ + struct port *port; + + port = find_port_by_vq(vq->vdev->priv, vq); + if (!port) + return; + + wake_up_interruptible(&port->waitqueue); +} + static void in_intr(struct virtqueue *vq) { struct port *port; @@ -1566,7 +1577,7 @@ static int init_vqs(struct ports_device *portdev) */ j = 0; io_callbacks[j] = in_intr; - io_callbacks[j + 1] = NULL; + io_callbacks[j + 1] = out_intr; io_names[j] = "input"; io_names[j + 1] = "output"; j += 2; @@ -1580,7 +1591,7 @@ static int init_vqs(struct ports_device *portdev) for (i = 1; i < nr_ports; i++) { j += 2; io_callbacks[j] = in_intr; - io_callbacks[j + 1] = NULL; + io_callbacks[j + 1] = out_intr; io_names[j] = "input"; io_names[j + 1] = "output"; } From 5084f89303c0a138f66bf74662753f46878989bb Mon Sep 17 00:00:00 2001 From: Amit Shah Date: Mon, 31 Jan 2011 13:06:37 +0530 Subject: [PATCH 125/277] virtio: console: Update Copyright Signed-off-by: Amit Shah Signed-off-by: Rusty Russell --- drivers/tty/hvc/virtio_console.c | 3 ++- include/linux/virtio_console.h | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/tty/hvc/virtio_console.c b/drivers/tty/hvc/virtio_console.c index ad2520b1e03f..239d86f9d560 100644 --- a/drivers/tty/hvc/virtio_console.c +++ b/drivers/tty/hvc/virtio_console.c @@ -1,6 +1,7 @@ /* * Copyright (C) 2006, 2007, 2009 Rusty Russell, IBM Corporation - * Copyright (C) 2009, 2010 Red Hat, Inc. + * Copyright (C) 2009, 2010, 2011 Red Hat, Inc. + * Copyright (C) 2009, 2010, 2011 Amit Shah * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by diff --git a/include/linux/virtio_console.h b/include/linux/virtio_console.h index a85064db8f94..e4d333543a33 100644 --- a/include/linux/virtio_console.h +++ b/include/linux/virtio_console.h @@ -7,7 +7,8 @@ * This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so * anyone can use the definitions to implement compatible drivers/servers. * - * Copyright (C) Red Hat, Inc., 2009, 2010 + * Copyright (C) Red Hat, Inc., 2009, 2010, 2011 + * Copyright (C) Amit Shah , 2009, 2010, 2011 */ /* Feature bits */ From 3a9dda7602e566014a859faaf8490e6454683ab1 Mon Sep 17 00:00:00 2001 From: Alexey Orishko Date: Mon, 7 Feb 2011 09:45:09 +0000 Subject: [PATCH 126/277] CDC NCM errata updates for cdc.h Changes are based on the following documents: - CDC NCM errata: http://www.usb.org/developers/devclass_docs/NCM10_012011.zip - CDC and WMC errata link: http://www.usb.org/developers/devclass_docs/CDC1.2_WMC1.1_012011.zip Signed-off-by: Alexey Orishko Acked-by: Greg Kroah-Hartman Signed-off-by: David S. Miller --- include/linux/usb/cdc.h | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-) diff --git a/include/linux/usb/cdc.h b/include/linux/usb/cdc.h index 5e86dc771da4..81a927930bfd 100644 --- a/include/linux/usb/cdc.h +++ b/include/linux/usb/cdc.h @@ -89,7 +89,7 @@ struct usb_cdc_acm_descriptor { #define USB_CDC_COMM_FEATURE 0x01 #define USB_CDC_CAP_LINE 0x02 -#define USB_CDC_CAP_BRK 0x04 +#define USB_CDC_CAP_BRK 0x04 #define USB_CDC_CAP_NOTIFY 0x08 /* "Union Functional Descriptor" from CDC spec 5.2.3.8 */ @@ -271,6 +271,11 @@ struct usb_cdc_notification { __le16 wLength; } __attribute__ ((packed)); +struct usb_cdc_speed_change { + __le32 DLBitRRate; /* contains the downlink bit rate (IN pipe) */ + __le32 ULBitRate; /* contains the uplink bit rate (OUT pipe) */ +} __attribute__ ((packed)); + /*-------------------------------------------------------------------------*/ /* @@ -292,7 +297,7 @@ struct usb_cdc_ncm_ntb_parameters { __le16 wNdpOutDivisor; __le16 wNdpOutPayloadRemainder; __le16 wNdpOutAlignment; - __le16 wPadding2; + __le16 wNtbOutMaxDatagrams; } __attribute__ ((packed)); /* @@ -307,7 +312,7 @@ struct usb_cdc_ncm_nth16 { __le16 wHeaderLength; __le16 wSequence; __le16 wBlockLength; - __le16 wFpIndex; + __le16 wNdpIndex; } __attribute__ ((packed)); struct usb_cdc_ncm_nth32 { @@ -315,7 +320,7 @@ struct usb_cdc_ncm_nth32 { __le16 wHeaderLength; __le16 wSequence; __le32 dwBlockLength; - __le32 dwFpIndex; + __le32 dwNdpIndex; } __attribute__ ((packed)); /* @@ -337,7 +342,7 @@ struct usb_cdc_ncm_dpe16 { struct usb_cdc_ncm_ndp16 { __le32 dwSignature; __le16 wLength; - __le16 wNextFpIndex; + __le16 wNextNdpIndex; struct usb_cdc_ncm_dpe16 dpe16[0]; } __attribute__ ((packed)); @@ -375,6 +380,7 @@ struct usb_cdc_ncm_ndp32 { #define USB_CDC_NCM_NCAP_ENCAP_COMMAND (1 << 2) #define USB_CDC_NCM_NCAP_MAX_DATAGRAM_SIZE (1 << 3) #define USB_CDC_NCM_NCAP_CRC_MODE (1 << 4) +#define USB_CDC_NCM_NCAP_NTB_INPUT_SIZE (1 << 5) /* CDC NCM subclass Table 6-3: NTB Parameter Structure */ #define USB_CDC_NCM_NTB16_SUPPORTED (1 << 0) @@ -392,6 +398,13 @@ struct usb_cdc_ncm_ndp32 { #define USB_CDC_NCM_NTB_MIN_IN_SIZE 2048 #define USB_CDC_NCM_NTB_MIN_OUT_SIZE 2048 +/* NTB Input Size Structure */ +struct usb_cdc_ncm_ndp_input_size { + __le32 dwNtbInMaxSize; + __le16 wNtbInMaxDatagrams; + __le16 wReserved; +} __attribute__ ((packed)); + /* CDC NCM subclass 6.2.11 SetCrcMode */ #define USB_CDC_NCM_CRC_NOT_APPENDED 0x00 #define USB_CDC_NCM_CRC_APPENDED 0x01 From 84e77a8bc73cad2f910cc981f266904c66a17825 Mon Sep 17 00:00:00 2001 From: Alexey Orishko Date: Mon, 7 Feb 2011 09:45:10 +0000 Subject: [PATCH 127/277] USB CDC NCM errata updates for cdc_ncm host driver Specification links: - CDC NCM errata link: http://www.usb.org/developers/devclass_docs/NCM10_012011.zip - CDC and WMC errata link: http://www.usb.org/developers/devclass_docs/CDC1.2_WMC1.1_012011.zip Changes: - driver updated to match cdc.h header with errata changes - added support for USB_CDC_SET_NTB_INPUT_SIZE control request with 8 byte length - fixes to comply with specification: send only control requests supported by device, set number of datagrams for IN direction, connection speed structure update, etc. - packet loss fixed for tx direction; misleading flag renamed. - adjusted hard_mtu value. Signed-off-by: Alexey Orishko Signed-off-by: David S. Miller --- drivers/net/usb/cdc_ncm.c | 225 +++++++++++++++++++++++++------------- 1 file changed, 146 insertions(+), 79 deletions(-) diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index 04e8ce14a1d0..7113168473cf 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -1,7 +1,7 @@ /* * cdc_ncm.c * - * Copyright (C) ST-Ericsson 2010 + * Copyright (C) ST-Ericsson 2010-2011 * Contact: Alexey Orishko * Original author: Hans Petter Selasky * @@ -54,7 +54,7 @@ #include #include -#define DRIVER_VERSION "17-Jan-2011" +#define DRIVER_VERSION "7-Feb-2011" /* CDC NCM subclass 3.2.1 */ #define USB_CDC_NCM_NDP16_LENGTH_MIN 0x10 @@ -77,6 +77,9 @@ */ #define CDC_NCM_DPT_DATAGRAMS_MAX 32 +/* Maximum amount of IN datagrams in NTB */ +#define CDC_NCM_DPT_DATAGRAMS_IN_MAX 0 /* unlimited */ + /* Restart the timer, if amount of datagrams is less than given value */ #define CDC_NCM_RESTART_TIMER_DATAGRAM_CNT 3 @@ -85,11 +88,6 @@ (sizeof(struct usb_cdc_ncm_nth16) + sizeof(struct usb_cdc_ncm_ndp16) + \ (CDC_NCM_DPT_DATAGRAMS_MAX + 1) * sizeof(struct usb_cdc_ncm_dpe16)) -struct connection_speed_change { - __le32 USBitRate; /* holds 3GPP downlink value, bits per second */ - __le32 DSBitRate; /* holds 3GPP uplink value, bits per second */ -} __attribute__ ((packed)); - struct cdc_ncm_data { struct usb_cdc_ncm_nth16 nth16; struct usb_cdc_ncm_ndp16 ndp16; @@ -198,10 +196,10 @@ static u8 cdc_ncm_setup(struct cdc_ncm_ctx *ctx) { struct usb_cdc_notification req; u32 val; - __le16 max_datagram_size; u8 flags; u8 iface_no; int err; + u16 ntb_fmt_supported; iface_no = ctx->control->cur_altsetting->desc.bInterfaceNumber; @@ -223,6 +221,9 @@ static u8 cdc_ncm_setup(struct cdc_ncm_ctx *ctx) ctx->tx_remainder = le16_to_cpu(ctx->ncm_parm.wNdpOutPayloadRemainder); ctx->tx_modulus = le16_to_cpu(ctx->ncm_parm.wNdpOutDivisor); ctx->tx_ndp_modulus = le16_to_cpu(ctx->ncm_parm.wNdpOutAlignment); + /* devices prior to NCM Errata shall set this field to zero */ + ctx->tx_max_datagrams = le16_to_cpu(ctx->ncm_parm.wNtbOutMaxDatagrams); + ntb_fmt_supported = le16_to_cpu(ctx->ncm_parm.bmNtbFormatsSupported); if (ctx->func_desc != NULL) flags = ctx->func_desc->bmNetworkCapabilities; @@ -231,22 +232,58 @@ static u8 cdc_ncm_setup(struct cdc_ncm_ctx *ctx) pr_debug("dwNtbInMaxSize=%u dwNtbOutMaxSize=%u " "wNdpOutPayloadRemainder=%u wNdpOutDivisor=%u " - "wNdpOutAlignment=%u flags=0x%x\n", + "wNdpOutAlignment=%u wNtbOutMaxDatagrams=%u flags=0x%x\n", ctx->rx_max, ctx->tx_max, ctx->tx_remainder, ctx->tx_modulus, - ctx->tx_ndp_modulus, flags); + ctx->tx_ndp_modulus, ctx->tx_max_datagrams, flags); - /* max count of tx datagrams without terminating NULL entry */ - ctx->tx_max_datagrams = CDC_NCM_DPT_DATAGRAMS_MAX; + /* max count of tx datagrams */ + if ((ctx->tx_max_datagrams == 0) || + (ctx->tx_max_datagrams > CDC_NCM_DPT_DATAGRAMS_MAX)) + ctx->tx_max_datagrams = CDC_NCM_DPT_DATAGRAMS_MAX; /* verify maximum size of received NTB in bytes */ - if ((ctx->rx_max < - (CDC_NCM_MIN_HDR_SIZE + CDC_NCM_MIN_DATAGRAM_SIZE)) || - (ctx->rx_max > CDC_NCM_NTB_MAX_SIZE_RX)) { + if (ctx->rx_max < USB_CDC_NCM_NTB_MIN_IN_SIZE) { + pr_debug("Using min receive length=%d\n", + USB_CDC_NCM_NTB_MIN_IN_SIZE); + ctx->rx_max = USB_CDC_NCM_NTB_MIN_IN_SIZE; + } + + if (ctx->rx_max > CDC_NCM_NTB_MAX_SIZE_RX) { pr_debug("Using default maximum receive length=%d\n", CDC_NCM_NTB_MAX_SIZE_RX); ctx->rx_max = CDC_NCM_NTB_MAX_SIZE_RX; } + /* inform device about NTB input size changes */ + if (ctx->rx_max != le32_to_cpu(ctx->ncm_parm.dwNtbInMaxSize)) { + req.bmRequestType = USB_TYPE_CLASS | USB_DIR_OUT | + USB_RECIP_INTERFACE; + req.bNotificationType = USB_CDC_SET_NTB_INPUT_SIZE; + req.wValue = 0; + req.wIndex = cpu_to_le16(iface_no); + + if (flags & USB_CDC_NCM_NCAP_NTB_INPUT_SIZE) { + struct usb_cdc_ncm_ndp_input_size ndp_in_sz; + + req.wLength = 8; + ndp_in_sz.dwNtbInMaxSize = cpu_to_le32(ctx->rx_max); + ndp_in_sz.wNtbInMaxDatagrams = + cpu_to_le16(CDC_NCM_DPT_DATAGRAMS_MAX); + ndp_in_sz.wReserved = 0; + err = cdc_ncm_do_request(ctx, &req, &ndp_in_sz, 0, NULL, + 1000); + } else { + __le32 dwNtbInMaxSize = cpu_to_le32(ctx->rx_max); + + req.wLength = 4; + err = cdc_ncm_do_request(ctx, &req, &dwNtbInMaxSize, 0, + NULL, 1000); + } + + if (err) + pr_debug("Setting NTB Input Size failed\n"); + } + /* verify maximum size of transmitted NTB in bytes */ if ((ctx->tx_max < (CDC_NCM_MIN_HDR_SIZE + CDC_NCM_MIN_DATAGRAM_SIZE)) || @@ -297,47 +334,84 @@ static u8 cdc_ncm_setup(struct cdc_ncm_ctx *ctx) /* additional configuration */ /* set CRC Mode */ - req.bmRequestType = USB_TYPE_CLASS | USB_DIR_OUT | USB_RECIP_INTERFACE; - req.bNotificationType = USB_CDC_SET_CRC_MODE; - req.wValue = cpu_to_le16(USB_CDC_NCM_CRC_NOT_APPENDED); - req.wIndex = cpu_to_le16(iface_no); - req.wLength = 0; + if (flags & USB_CDC_NCM_NCAP_CRC_MODE) { + req.bmRequestType = USB_TYPE_CLASS | USB_DIR_OUT | + USB_RECIP_INTERFACE; + req.bNotificationType = USB_CDC_SET_CRC_MODE; + req.wValue = cpu_to_le16(USB_CDC_NCM_CRC_NOT_APPENDED); + req.wIndex = cpu_to_le16(iface_no); + req.wLength = 0; - err = cdc_ncm_do_request(ctx, &req, NULL, 0, NULL, 1000); - if (err) - pr_debug("Setting CRC mode off failed\n"); + err = cdc_ncm_do_request(ctx, &req, NULL, 0, NULL, 1000); + if (err) + pr_debug("Setting CRC mode off failed\n"); + } - /* set NTB format */ - req.bmRequestType = USB_TYPE_CLASS | USB_DIR_OUT | USB_RECIP_INTERFACE; - req.bNotificationType = USB_CDC_SET_NTB_FORMAT; - req.wValue = cpu_to_le16(USB_CDC_NCM_NTB16_FORMAT); - req.wIndex = cpu_to_le16(iface_no); - req.wLength = 0; + /* set NTB format, if both formats are supported */ + if (ntb_fmt_supported & USB_CDC_NCM_NTH32_SIGN) { + req.bmRequestType = USB_TYPE_CLASS | USB_DIR_OUT | + USB_RECIP_INTERFACE; + req.bNotificationType = USB_CDC_SET_NTB_FORMAT; + req.wValue = cpu_to_le16(USB_CDC_NCM_NTB16_FORMAT); + req.wIndex = cpu_to_le16(iface_no); + req.wLength = 0; - err = cdc_ncm_do_request(ctx, &req, NULL, 0, NULL, 1000); - if (err) - pr_debug("Setting NTB format to 16-bit failed\n"); + err = cdc_ncm_do_request(ctx, &req, NULL, 0, NULL, 1000); + if (err) + pr_debug("Setting NTB format to 16-bit failed\n"); + } + + ctx->max_datagram_size = CDC_NCM_MIN_DATAGRAM_SIZE; /* set Max Datagram Size (MTU) */ - req.bmRequestType = USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE; - req.bNotificationType = USB_CDC_GET_MAX_DATAGRAM_SIZE; - req.wValue = 0; - req.wIndex = cpu_to_le16(iface_no); - req.wLength = cpu_to_le16(2); + if (flags & USB_CDC_NCM_NCAP_MAX_DATAGRAM_SIZE) { + __le16 max_datagram_size; + u16 eth_max_sz = le16_to_cpu(ctx->ether_desc->wMaxSegmentSize); - err = cdc_ncm_do_request(ctx, &req, &max_datagram_size, 0, NULL, 1000); - if (err) { - pr_debug(" GET_MAX_DATAGRAM_SIZE failed, using size=%u\n", - CDC_NCM_MIN_DATAGRAM_SIZE); - /* use default */ - ctx->max_datagram_size = CDC_NCM_MIN_DATAGRAM_SIZE; - } else { - ctx->max_datagram_size = le16_to_cpu(max_datagram_size); + req.bmRequestType = USB_TYPE_CLASS | USB_DIR_IN | + USB_RECIP_INTERFACE; + req.bNotificationType = USB_CDC_GET_MAX_DATAGRAM_SIZE; + req.wValue = 0; + req.wIndex = cpu_to_le16(iface_no); + req.wLength = cpu_to_le16(2); + + err = cdc_ncm_do_request(ctx, &req, &max_datagram_size, 0, NULL, + 1000); + if (err) { + pr_debug("GET_MAX_DATAGRAM_SIZE failed, use size=%u\n", + CDC_NCM_MIN_DATAGRAM_SIZE); + } else { + ctx->max_datagram_size = le16_to_cpu(max_datagram_size); + /* Check Eth descriptor value */ + if (eth_max_sz < CDC_NCM_MAX_DATAGRAM_SIZE) { + if (ctx->max_datagram_size > eth_max_sz) + ctx->max_datagram_size = eth_max_sz; + } else { + if (ctx->max_datagram_size > + CDC_NCM_MAX_DATAGRAM_SIZE) + ctx->max_datagram_size = + CDC_NCM_MAX_DATAGRAM_SIZE; + } + + if (ctx->max_datagram_size < CDC_NCM_MIN_DATAGRAM_SIZE) + ctx->max_datagram_size = + CDC_NCM_MIN_DATAGRAM_SIZE; + + /* if value changed, update device */ + req.bmRequestType = USB_TYPE_CLASS | USB_DIR_OUT | + USB_RECIP_INTERFACE; + req.bNotificationType = USB_CDC_SET_MAX_DATAGRAM_SIZE; + req.wValue = 0; + req.wIndex = cpu_to_le16(iface_no); + req.wLength = 2; + max_datagram_size = cpu_to_le16(ctx->max_datagram_size); + + err = cdc_ncm_do_request(ctx, &req, &max_datagram_size, + 0, NULL, 1000); + if (err) + pr_debug("SET_MAX_DATAGRAM_SIZE failed\n"); + } - if (ctx->max_datagram_size < CDC_NCM_MIN_DATAGRAM_SIZE) - ctx->max_datagram_size = CDC_NCM_MIN_DATAGRAM_SIZE; - else if (ctx->max_datagram_size > CDC_NCM_MAX_DATAGRAM_SIZE) - ctx->max_datagram_size = CDC_NCM_MAX_DATAGRAM_SIZE; } if (ctx->netdev->mtu != (ctx->max_datagram_size - ETH_HLEN)) @@ -466,19 +540,13 @@ static int cdc_ncm_bind(struct usbnet *dev, struct usb_interface *intf) ctx->ether_desc = (const struct usb_cdc_ether_desc *)buf; - dev->hard_mtu = le16_to_cpu(ctx->ether_desc->wMaxSegmentSize); - if (dev->hard_mtu < - (CDC_NCM_MIN_DATAGRAM_SIZE - ETH_HLEN)) - dev->hard_mtu = - CDC_NCM_MIN_DATAGRAM_SIZE - ETH_HLEN; - - else if (dev->hard_mtu > - (CDC_NCM_MAX_DATAGRAM_SIZE - ETH_HLEN)) - dev->hard_mtu = - CDC_NCM_MAX_DATAGRAM_SIZE - ETH_HLEN; + if (dev->hard_mtu < CDC_NCM_MIN_DATAGRAM_SIZE) + dev->hard_mtu = CDC_NCM_MIN_DATAGRAM_SIZE; + else if (dev->hard_mtu > CDC_NCM_MAX_DATAGRAM_SIZE) + dev->hard_mtu = CDC_NCM_MAX_DATAGRAM_SIZE; break; case USB_CDC_NCM_TYPE: @@ -628,13 +696,13 @@ cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb) u32 offset; u32 last_offset; u16 n = 0; - u8 timeout = 0; + u8 ready2send = 0; /* if there is a remaining skb, it gets priority */ if (skb != NULL) swap(skb, ctx->tx_rem_skb); else - timeout = 1; + ready2send = 1; /* * +----------------+ @@ -682,9 +750,10 @@ cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb) for (; n < ctx->tx_max_datagrams; n++) { /* check if end of transmit buffer is reached */ - if (offset >= ctx->tx_max) + if (offset >= ctx->tx_max) { + ready2send = 1; break; - + } /* compute maximum buffer size */ rem = ctx->tx_max - offset; @@ -711,9 +780,7 @@ cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb) } ctx->tx_rem_skb = skb; skb = NULL; - - /* loop one more time */ - timeout = 1; + ready2send = 1; } break; } @@ -756,7 +823,7 @@ cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb) ctx->tx_curr_last_offset = last_offset; goto exit_no_skb; - } else if ((n < ctx->tx_max_datagrams) && (timeout == 0)) { + } else if ((n < ctx->tx_max_datagrams) && (ready2send == 0)) { /* wait for more frames */ /* push variables */ ctx->tx_curr_skb = skb_out; @@ -813,7 +880,7 @@ cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb) cpu_to_le16(sizeof(ctx->tx_ncm.nth16)); ctx->tx_ncm.nth16.wSequence = cpu_to_le16(ctx->tx_seq); ctx->tx_ncm.nth16.wBlockLength = cpu_to_le16(last_offset); - ctx->tx_ncm.nth16.wFpIndex = ALIGN(sizeof(struct usb_cdc_ncm_nth16), + ctx->tx_ncm.nth16.wNdpIndex = ALIGN(sizeof(struct usb_cdc_ncm_nth16), ctx->tx_ndp_modulus); memcpy(skb_out->data, &(ctx->tx_ncm.nth16), sizeof(ctx->tx_ncm.nth16)); @@ -825,13 +892,13 @@ cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb) rem = sizeof(ctx->tx_ncm.ndp16) + ((ctx->tx_curr_frame_num + 1) * sizeof(struct usb_cdc_ncm_dpe16)); ctx->tx_ncm.ndp16.wLength = cpu_to_le16(rem); - ctx->tx_ncm.ndp16.wNextFpIndex = 0; /* reserved */ + ctx->tx_ncm.ndp16.wNextNdpIndex = 0; /* reserved */ - memcpy(((u8 *)skb_out->data) + ctx->tx_ncm.nth16.wFpIndex, + memcpy(((u8 *)skb_out->data) + ctx->tx_ncm.nth16.wNdpIndex, &(ctx->tx_ncm.ndp16), sizeof(ctx->tx_ncm.ndp16)); - memcpy(((u8 *)skb_out->data) + ctx->tx_ncm.nth16.wFpIndex + + memcpy(((u8 *)skb_out->data) + ctx->tx_ncm.nth16.wNdpIndex + sizeof(ctx->tx_ncm.ndp16), &(ctx->tx_ncm.dpe16), (ctx->tx_curr_frame_num + 1) * @@ -961,7 +1028,7 @@ static int cdc_ncm_rx_fixup(struct usbnet *dev, struct sk_buff *skb_in) goto error; } - temp = le16_to_cpu(ctx->rx_ncm.nth16.wFpIndex); + temp = le16_to_cpu(ctx->rx_ncm.nth16.wNdpIndex); if ((temp + sizeof(ctx->rx_ncm.ndp16)) > actlen) { pr_debug("invalid DPT16 index\n"); goto error; @@ -1048,10 +1115,10 @@ error: static void cdc_ncm_speed_change(struct cdc_ncm_ctx *ctx, - struct connection_speed_change *data) + struct usb_cdc_speed_change *data) { - uint32_t rx_speed = le32_to_cpu(data->USBitRate); - uint32_t tx_speed = le32_to_cpu(data->DSBitRate); + uint32_t rx_speed = le32_to_cpu(data->DLBitRRate); + uint32_t tx_speed = le32_to_cpu(data->ULBitRate); /* * Currently the USB-NET API does not support reporting the actual @@ -1092,7 +1159,7 @@ static void cdc_ncm_status(struct usbnet *dev, struct urb *urb) /* test for split data in 8-byte chunks */ if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) { cdc_ncm_speed_change(ctx, - (struct connection_speed_change *)urb->transfer_buffer); + (struct usb_cdc_speed_change *)urb->transfer_buffer); return; } @@ -1120,12 +1187,12 @@ static void cdc_ncm_status(struct usbnet *dev, struct urb *urb) break; case USB_CDC_NOTIFY_SPEED_CHANGE: - if (urb->actual_length < - (sizeof(*event) + sizeof(struct connection_speed_change))) + if (urb->actual_length < (sizeof(*event) + + sizeof(struct usb_cdc_speed_change))) set_bit(EVENT_STS_SPLIT, &dev->flags); else cdc_ncm_speed_change(ctx, - (struct connection_speed_change *) &event[1]); + (struct usb_cdc_speed_change *) &event[1]); break; default: From b2df5a8446e135f7648736b8bec8179c88ce360d Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 8 Feb 2011 14:31:31 -0800 Subject: [PATCH 128/277] net/caif: Fix dangling list pointer in freed object on error. rtnl_link_ops->setup(), and the "setup" callback passed to alloc_netdev*(), cannot make state changes which need to be undone on failure. There is no cleanup mechanism available at this point. So we have to add the caif private instance to the global list once we are sure that register_netdev() has succedded in ->newlink(). Otherwise, if register_netdev() fails, the caller will invoke free_netdev() and we will have a reference to freed up memory on the chnl_net_list. Signed-off-by: David S. Miller --- net/caif/chnl_net.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/caif/chnl_net.c b/net/caif/chnl_net.c index fa9dab372b68..6008d6dc18a0 100644 --- a/net/caif/chnl_net.c +++ b/net/caif/chnl_net.c @@ -394,9 +394,7 @@ static void ipcaif_net_setup(struct net_device *dev) priv->conn_req.sockaddr.u.dgm.connection_id = -1; priv->flowenabled = false; - ASSERT_RTNL(); init_waitqueue_head(&priv->netmgmt_wq); - list_add(&priv->list_field, &chnl_net_list); } @@ -453,6 +451,8 @@ static int ipcaif_newlink(struct net *src_net, struct net_device *dev, ret = register_netdevice(dev); if (ret) pr_warn("device rtml registration failed\n"); + else + list_add(&caifdev->list_field, &chnl_net_list); return ret; } From 884b821fa27a5e3714d4871976d3e7c3abfa0d1b Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 8 Feb 2011 23:37:16 +0100 Subject: [PATCH 129/277] ACPI: Fix acpi_os_read_memory() and acpi_os_write_memory() (v2) The functions acpi_os_read_memory() and acpi_os_write_memory() do two wrong things. First, they shouldn't call rcu_read_unlock() before the looked up address is actually used for I/O, because in that case the iomap it belongs to may be removed before the I/O is done. Second, if they have to create a new mapping, they should check the returned virtual address and tell the caller that the operation failed if it is NULL (in fact, I think they even should not attempt to map an address that's not present in one of the existing ACPI iomaps, because that may cause problems to happen when they are called from nonpreemptible context and their callers ought to know what they are doing and map the requisite memory regions beforehand). Make these functions call rcu_read_unlock() when the I/O is complete (or if it's necessary to map the given address "on the fly") and return an error code if the requested physical address is not present in the existing ACPI iomaps and cannot be mapped. Signed-off-by: Rafael J. Wysocki --- drivers/acpi/osl.c | 25 ++++++++++++++++++------- 1 file changed, 18 insertions(+), 7 deletions(-) diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index b0931818cf98..c90c76aa7f8b 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -636,17 +636,21 @@ EXPORT_SYMBOL(acpi_os_write_port); acpi_status acpi_os_read_memory(acpi_physical_address phys_addr, u32 * value, u32 width) { - u32 dummy; void __iomem *virt_addr; - int size = width / 8, unmap = 0; + unsigned int size = width / 8; + bool unmap = false; + u32 dummy; rcu_read_lock(); virt_addr = acpi_map_vaddr_lookup(phys_addr, size); - rcu_read_unlock(); if (!virt_addr) { + rcu_read_unlock(); virt_addr = acpi_os_ioremap(phys_addr, size); - unmap = 1; + if (!virt_addr) + return AE_BAD_ADDRESS; + unmap = true; } + if (!value) value = &dummy; @@ -666,6 +670,8 @@ acpi_os_read_memory(acpi_physical_address phys_addr, u32 * value, u32 width) if (unmap) iounmap(virt_addr); + else + rcu_read_unlock(); return AE_OK; } @@ -674,14 +680,17 @@ acpi_status acpi_os_write_memory(acpi_physical_address phys_addr, u32 value, u32 width) { void __iomem *virt_addr; - int size = width / 8, unmap = 0; + unsigned int size = width / 8; + bool unmap = false; rcu_read_lock(); virt_addr = acpi_map_vaddr_lookup(phys_addr, size); - rcu_read_unlock(); if (!virt_addr) { + rcu_read_unlock(); virt_addr = acpi_os_ioremap(phys_addr, size); - unmap = 1; + if (!virt_addr) + return AE_BAD_ADDRESS; + unmap = true; } switch (width) { @@ -700,6 +709,8 @@ acpi_os_write_memory(acpi_physical_address phys_addr, u32 value, u32 width) if (unmap) iounmap(virt_addr); + else + rcu_read_unlock(); return AE_OK; } From 8d3bdbd55a7e2a3f2c148a4830aa26dd682b21c4 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 8 Feb 2011 15:02:50 -0800 Subject: [PATCH 130/277] net: Fix lockdep regression caused by initializing netdev queues too early. In commit aa9421041128abb4d269ee1dc502ff65fb3b7d69 ("net: init ingress queue") we moved the allocation and lock initialization of the queues into alloc_netdev_mq() since register_netdevice() is way too late. The problem is that dev->type is not setup until the setup() callback is invoked by alloc_netdev_mq(), and the dev->type is what determines the lockdep class to use for the locks in the queues. Fix this by doing the queue allocation after the setup() callback runs. This is safe because the setup() callback is not allowed to make any state changes that need to be undone on error (memory allocations, etc.). It may, however, make state changes that are undone by free_netdev() (such as netif_napi_add(), which is done by the ipoib driver's setup routine). The previous code also leaked a reference to the &init_net namespace object on RX/TX queue allocation failures. Signed-off-by: David S. Miller --- net/core/dev.c | 29 +++++++++++++++++------------ 1 file changed, 17 insertions(+), 12 deletions(-) diff --git a/net/core/dev.c b/net/core/dev.c index b6d0bf875a8e..8e726cb47ed7 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -5660,18 +5660,6 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name, dev_net_set(dev, &init_net); - dev->num_tx_queues = txqs; - dev->real_num_tx_queues = txqs; - if (netif_alloc_netdev_queues(dev)) - goto free_pcpu; - -#ifdef CONFIG_RPS - dev->num_rx_queues = rxqs; - dev->real_num_rx_queues = rxqs; - if (netif_alloc_rx_queues(dev)) - goto free_pcpu; -#endif - dev->gso_max_size = GSO_MAX_SIZE; INIT_LIST_HEAD(&dev->ethtool_ntuple_list.list); @@ -5681,9 +5669,26 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name, INIT_LIST_HEAD(&dev->link_watch_list); dev->priv_flags = IFF_XMIT_DST_RELEASE; setup(dev); + + dev->num_tx_queues = txqs; + dev->real_num_tx_queues = txqs; + if (netif_alloc_netdev_queues(dev)) + goto free_all; + +#ifdef CONFIG_RPS + dev->num_rx_queues = rxqs; + dev->real_num_rx_queues = rxqs; + if (netif_alloc_rx_queues(dev)) + goto free_all; +#endif + strcpy(dev->name, name); return dev; +free_all: + free_netdev(dev); + return NULL; + free_pcpu: free_percpu(dev->pcpu_refcnt); kfree(dev->_tx); From 7e90d705fc9f8c5e3a1549281dce0654d049243b Mon Sep 17 00:00:00 2001 From: Steve French Date: Tue, 8 Feb 2011 23:52:32 +0000 Subject: [PATCH 131/277] [CIFS] Do not send SMBEcho requests on new sockets until SMBNegotiate In order to determine whether an SMBEcho request can be sent we need to know that the socket is established (server tcpStatus == CifsGood) AND that an SMB NegotiateProtocol has been sent (server maxBuf != 0). Without the second check we can send an Echo request during reconnection before the server can accept it. CC: JG Reviewed-by: Jeff Layton Signed-off-by: Steve French --- fs/cifs/cifsglob.h | 2 ++ fs/cifs/connect.c | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index edd5b29b53c9..1ab33eb71d95 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -188,6 +188,8 @@ struct TCP_Server_Info { /* multiplexed reads or writes */ unsigned int maxBuf; /* maxBuf specifies the maximum */ /* message size the server can send or receive for non-raw SMBs */ + /* maxBuf is returned by SMB NegotiateProtocol so maxBuf is only 0 */ + /* when socket is setup (and during reconnect) before NegProt sent */ unsigned int max_rw; /* maxRw specifies the maximum */ /* message size the server can send or receive for */ /* SMB_COM_WRITE_RAW or SMB_COM_READ_RAW. */ diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 257b6d895e20..10011e99b34d 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -341,7 +341,7 @@ cifs_echo_request(struct work_struct *work) * We cannot send an echo until the NEGOTIATE_PROTOCOL request is done. * Also, no need to ping if we got a response recently */ - if (server->tcpStatus != CifsGood || + if ((server->tcpStatus != CifsGood) || (server->maxBuf == 0) || time_before(jiffies, server->lstrp + SMB_ECHO_INTERVAL - HZ)) goto requeue_echo; From eab743ede8c4a5e88533d022e9c5374ed08df4cb Mon Sep 17 00:00:00 2001 From: Tomoya Date: Mon, 7 Feb 2011 23:29:01 +0000 Subject: [PATCH 132/277] pch_can: fix 800k comms issue Currently, 800k comms fails since prop_seg set zero. (EG20T PCH CAN register of prop_seg must be set more than 1) To prevent prop_seg set to zero, change tseg2_min 1 to 2. Signed-off-by: Tomoya MORINAGA Signed-off-by: David S. Miller --- drivers/net/can/pch_can.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c index c42e97268248..9b171d12f793 100644 --- a/drivers/net/can/pch_can.c +++ b/drivers/net/can/pch_can.c @@ -187,7 +187,7 @@ static struct can_bittiming_const pch_can_bittiming_const = { .name = KBUILD_MODNAME, .tseg1_min = 1, .tseg1_max = 16, - .tseg2_min = 1, + .tseg2_min = 2, .tseg2_max = 8, .sjw_max = 4, .brp_min = 1, From ce9736d4fb48beed370e22ac156779746dda7b92 Mon Sep 17 00:00:00 2001 From: Tomoya Date: Mon, 7 Feb 2011 23:29:02 +0000 Subject: [PATCH 133/277] pch_can: fix rmmod issue Currently, when rmmod pch_can, kernel failure occurs. The cause is pci_iounmap executed before pch_can_reset. Thus pci_iounmap moves after pch_can_reset. Signed-off-by: Tomoya MORINAGA Signed-off-by: David S. Miller --- drivers/net/can/pch_can.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c index 9b171d12f793..342d514c5e84 100644 --- a/drivers/net/can/pch_can.c +++ b/drivers/net/can/pch_can.c @@ -959,13 +959,13 @@ static void __devexit pch_can_remove(struct pci_dev *pdev) struct pch_can_priv *priv = netdev_priv(ndev); unregister_candev(priv->ndev); - pci_iounmap(pdev, priv->regs); if (priv->use_msi) pci_disable_msi(priv->dev); pci_release_regions(pdev); pci_disable_device(pdev); pci_set_drvdata(pdev, NULL); pch_can_reset(priv); + pci_iounmap(pdev, priv->regs); free_candev(priv->ndev); } From c69b90920a36b88ab0d649963d81355d865eeb05 Mon Sep 17 00:00:00 2001 From: Tomoya Date: Mon, 7 Feb 2011 23:29:03 +0000 Subject: [PATCH 134/277] pch_can: fix module reload issue with MSI Currently, in case reload pch_can, pch_can not to be able to catch interrupt. The cause is bus-master is not set in pch_can. Thus, add enabling bus-master processing. Signed-off-by: Tomoya MORINAGA Signed-off-by: David S. Miller --- drivers/net/can/pch_can.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c index 342d514c5e84..7d8bc128044c 100644 --- a/drivers/net/can/pch_can.c +++ b/drivers/net/can/pch_can.c @@ -1238,6 +1238,7 @@ static int __devinit pch_can_probe(struct pci_dev *pdev, priv->use_msi = 0; } else { netdev_err(ndev, "PCH CAN opened with MSI\n"); + pci_set_master(pdev); priv->use_msi = 1; } From c317428644c0af137d80069ab178cd797da3be45 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Wed, 9 Feb 2011 08:08:20 +0100 Subject: [PATCH 135/277] netfilter: nf_conntrack: set conntrack templates again if we return NF_REPEAT The TCP tracking code has a special case that allows to return NF_REPEAT if we receive a new SYN packet while in TIME_WAIT state. In this situation, the TCP tracking code destroys the existing conntrack to start a new clean session. [DESTROY] tcp 6 src=192.168.0.2 dst=192.168.1.2 sport=38925 dport=8000 src=192.168.1.2 dst=192.168.1.100 sport=8000 dport=38925 [ASSURED] [NEW] tcp 6 120 SYN_SENT src=192.168.0.2 dst=192.168.1.2 sport=38925 dport=8000 [UNREPLIED] src=192.168.1.2 dst=192.168.1.100 sport=8000 dport=38925 However, this is a problem for the iptables' CT target event filtering which will not work in this case since the conntrack template will not be there for the new session. To fix this, we reassign the conntrack template to the packet if we return NF_REPEAT. Signed-off-by: Pablo Neira Ayuso Signed-off-by: Patrick McHardy --- net/netfilter/nf_conntrack_core.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index e61511929c66..84f4fcc5884b 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -942,8 +942,15 @@ nf_conntrack_in(struct net *net, u_int8_t pf, unsigned int hooknum, if (set_reply && !test_and_set_bit(IPS_SEEN_REPLY_BIT, &ct->status)) nf_conntrack_event_cache(IPCT_REPLY, ct); out: - if (tmpl) - nf_ct_put(tmpl); + if (tmpl) { + /* Special case: we have to repeat this hook, assign the + * template again to this packet. We assume that this packet + * has no conntrack assigned. This is used by nf_ct_tcp. */ + if (ret == NF_REPEAT) + skb->nfct = (struct nf_conntrack *)tmpl; + else + nf_ct_put(tmpl); + } return ret; } From 02a8f01b5a9f396d0327977af4c232d0f94c45fd Mon Sep 17 00:00:00 2001 From: Justin TerAvest Date: Wed, 9 Feb 2011 14:20:03 +0100 Subject: [PATCH 136/277] cfq-iosched: Don't wait if queue already has requests. Commit 7667aa0630407bc07dc38dcc79d29cc0a65553c1 added logic to wait for the last queue of the group to become busy (have at least one request), so that the group does not lose out for not being continuously backlogged. The commit did not check for the condition that the last queue already has some requests. As a result, if the queue already has requests, wait_busy is set. Later on, cfq_select_queue() checks the flag, and decides that since the queue has a request now and wait_busy is set, the queue is expired. This results in early expiration of the queue. This patch fixes the problem by adding a check to see if queue already has requests. If it does, wait_busy is not set. As a result, time slices do not expire early. The queues with more than one request are usually buffered writers. Testing shows improvement in isolation between buffered writers. Cc: stable@kernel.org Signed-off-by: Justin TerAvest Reviewed-by: Gui Jianfeng Acked-by: Vivek Goyal Signed-off-by: Jens Axboe --- block/cfq-iosched.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index ace168657136..7be4c7959625 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -3432,6 +3432,10 @@ static bool cfq_should_wait_busy(struct cfq_data *cfqd, struct cfq_queue *cfqq) { struct cfq_io_context *cic = cfqd->active_cic; + /* If the queue already has requests, don't wait */ + if (!RB_EMPTY_ROOT(&cfqq->sort_list)) + return false; + /* If there are other queues in the group, don't wait */ if (cfqq->cfqg->nr_cfqq > 1) return false; From b8cf0e0e552ca48e9a00f518aeb4f5e03984022b Mon Sep 17 00:00:00 2001 From: Simon Arlott Date: Wed, 9 Feb 2011 14:21:07 +0100 Subject: [PATCH 137/277] cdrom: support devices that have check_events but not media_changed Commit 93aae17af1172c40c6f74b7294e93a90c3cfaa5d ("sr: implement sr_check_events()") replaced the media_changed op with the check_events op in drivers/scsi/sr.c All users that check for the CDC_MEDIA_CHANGED capbility try both the check_events op and the media_changed op, but register_cdrom() was requiring media_changed. This patch fixes the capability checking. The cdrom_select_disc ioctl is also using the two operations, so they should be required for CDC_SELECT_DISC too. Signed-off-by: Simon Arlott Cc: Tejun Heo Cc: Kay Sievers Tested-by: Chris Clayton Signed-off-by: Jens Axboe --- drivers/cdrom/cdrom.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c index 14033a36bcd0..e2c48a7eccff 100644 --- a/drivers/cdrom/cdrom.c +++ b/drivers/cdrom/cdrom.c @@ -409,7 +409,8 @@ int register_cdrom(struct cdrom_device_info *cdi) } ENSURE(drive_status, CDC_DRIVE_STATUS ); - ENSURE(media_changed, CDC_MEDIA_CHANGED); + if (cdo->check_events == NULL && cdo->media_changed == NULL) + *change_capability = ~(CDC_MEDIA_CHANGED | CDC_SELECT_DISC); ENSURE(tray_move, CDC_CLOSE_TRAY | CDC_OPEN_TRAY); ENSURE(lock_door, CDC_LOCK); ENSURE(select_speed, CDC_SELECT_SPEED); From 0c7fbbe1a15e419eb2f1a687444330c4016fdb8f Mon Sep 17 00:00:00 2001 From: Yu Tang Date: Wed, 19 Jan 2011 22:18:54 +0800 Subject: [PATCH 138/277] ARM: pxa: fix mfpr_sync to read from valid offset Since mfpr_mmio_base[0] is not always valid on later SoCs, fixed mpfr_sync() to read back from valid mfp offset always. Signed-off-by: Yu Tang Signed-off-by: Eric Miao --- arch/arm/plat-pxa/mfp.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/arm/plat-pxa/mfp.c b/arch/arm/plat-pxa/mfp.c index b77e018d36c1..a9aa5ad3f4eb 100644 --- a/arch/arm/plat-pxa/mfp.c +++ b/arch/arm/plat-pxa/mfp.c @@ -139,10 +139,11 @@ static const unsigned long mfpr_edge[] = { #define mfp_configured(p) ((p)->config != -1) /* - * perform a read-back of any MFPR register to make sure the + * perform a read-back of any valid MFPR register to make sure the * previous writings are finished */ -#define mfpr_sync() (void)__raw_readl(mfpr_mmio_base + 0) +static unsigned long mfpr_off_readback; +#define mfpr_sync() (void)__raw_readl(mfpr_mmio_base + mfpr_off_readback) static inline void __mfp_config_run(struct mfp_pin *p) { @@ -248,6 +249,9 @@ void __init mfp_init_addr(struct mfp_addr_map *map) spin_lock_irqsave(&mfp_spin_lock, flags); + /* mfp offset for readback */ + mfpr_off_readback = map[0].offset; + for (p = map; p->start != MFP_PIN_INVALID; p++) { offset = p->offset; i = p->start; From 57834a722473848338b1967f7fdd9907c713b0a7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Forsman?= Date: Thu, 23 Dec 2010 16:01:02 +0100 Subject: [PATCH 139/277] ARM: pxa/colibri: use correct SD detect pin The use of wrong SD detect pin was introduced by this commit: ARM: pxa: Push Colibri evalboard MFP into module files This fixes it. Signed-off-by: Eric Miao --- arch/arm/mach-pxa/colibri-evalboard.c | 2 +- arch/arm/mach-pxa/colibri-pxa300.c | 2 +- arch/arm/mach-pxa/include/mach/colibri.h | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-pxa/colibri-evalboard.c b/arch/arm/mach-pxa/colibri-evalboard.c index 6b2c800a1133..28f667e52ef9 100644 --- a/arch/arm/mach-pxa/colibri-evalboard.c +++ b/arch/arm/mach-pxa/colibri-evalboard.c @@ -50,7 +50,7 @@ static void __init colibri_mmc_init(void) GPIO0_COLIBRI_PXA270_SD_DETECT; if (machine_is_colibri300()) /* PXA300 Colibri */ colibri_mci_platform_data.gpio_card_detect = - GPIO39_COLIBRI_PXA300_SD_DETECT; + GPIO13_COLIBRI_PXA300_SD_DETECT; else /* PXA320 Colibri */ colibri_mci_platform_data.gpio_card_detect = GPIO28_COLIBRI_PXA320_SD_DETECT; diff --git a/arch/arm/mach-pxa/colibri-pxa300.c b/arch/arm/mach-pxa/colibri-pxa300.c index fddb16d07eb0..66dd81cbc8a0 100644 --- a/arch/arm/mach-pxa/colibri-pxa300.c +++ b/arch/arm/mach-pxa/colibri-pxa300.c @@ -41,7 +41,7 @@ static mfp_cfg_t colibri_pxa300_evalboard_pin_config[] __initdata = { GPIO4_MMC1_DAT1, GPIO5_MMC1_DAT2, GPIO6_MMC1_DAT3, - GPIO39_GPIO, /* SD detect */ + GPIO13_GPIO, /* GPIO13_COLIBRI_PXA300_SD_DETECT */ /* UHC */ GPIO0_2_USBH_PEN, diff --git a/arch/arm/mach-pxa/include/mach/colibri.h b/arch/arm/mach-pxa/include/mach/colibri.h index 388a96f1ef93..cb4236e98a0f 100644 --- a/arch/arm/mach-pxa/include/mach/colibri.h +++ b/arch/arm/mach-pxa/include/mach/colibri.h @@ -60,7 +60,7 @@ static inline void colibri_pxa3xx_init_nand(void) {} #define GPIO113_COLIBRI_PXA270_TS_IRQ 113 /* GPIO definitions for Colibri PXA300/310 */ -#define GPIO39_COLIBRI_PXA300_SD_DETECT 39 +#define GPIO13_COLIBRI_PXA300_SD_DETECT 13 /* GPIO definitions for Colibri PXA320 */ #define GPIO28_COLIBRI_PXA320_SD_DETECT 28 From 3d9cb0eafd024d6fc1b1583ff9b17e5f60951fd9 Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Wed, 26 Jan 2011 05:04:00 +0800 Subject: [PATCH 140/277] ARM: pxa: only save/restore registers when pm functions are defined Reported-and-tested-by: Sven Neumann Signed-off-by: Eric Miao --- arch/arm/mach-pxa/pm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-pxa/pm.c b/arch/arm/mach-pxa/pm.c index 978e1b289544..1807c9abdde0 100644 --- a/arch/arm/mach-pxa/pm.c +++ b/arch/arm/mach-pxa/pm.c @@ -33,7 +33,7 @@ int pxa_pm_enter(suspend_state_t state) #endif /* skip registers saving for standby */ - if (state != PM_SUSPEND_STANDBY) { + if (state != PM_SUSPEND_STANDBY && pxa_cpu_pm_fns->save) { pxa_cpu_pm_fns->save(sleep_save); /* before sleeping, calculate and save a checksum */ for (i = 0; i < pxa_cpu_pm_fns->save_count - 1; i++) @@ -44,7 +44,7 @@ int pxa_pm_enter(suspend_state_t state) pxa_cpu_pm_fns->enter(state); cpu_init(); - if (state != PM_SUSPEND_STANDBY) { + if (state != PM_SUSPEND_STANDBY && pxa_cpu_pm_fns->restore) { /* after sleeping, validate the checksum */ for (i = 0; i < pxa_cpu_pm_fns->save_count - 1; i++) checksum += sleep_save[i]; From 285ca2ee31a5999e6498e6b2466f346bb5f0047c Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Mon, 31 Jan 2011 23:06:53 +0100 Subject: [PATCH 141/277] ARM: pxa: Properly configure PWM period for palm27x Signed-off-by: Marek Vasut Signed-off-by: Eric Miao --- arch/arm/mach-pxa/palm27x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-pxa/palm27x.c b/arch/arm/mach-pxa/palm27x.c index 405b92a29793..35572c427fa8 100644 --- a/arch/arm/mach-pxa/palm27x.c +++ b/arch/arm/mach-pxa/palm27x.c @@ -323,7 +323,7 @@ static struct platform_pwm_backlight_data palm27x_backlight_data = { .pwm_id = 0, .max_brightness = 0xfe, .dft_brightness = 0x7e, - .pwm_period_ns = 3500, + .pwm_period_ns = 3500 * 1024, .init = palm27x_backlight_init, .notify = palm27x_backlight_notify, .exit = palm27x_backlight_exit, From 893a5ab6ee7d51b231ed45aa844f8088642cb6bf Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Fri, 14 Jan 2011 16:45:01 +0100 Subject: [PATCH 142/277] KVM: SVM: Make sure KERNEL_GS_BASE is valid when loading gs_index The gs_index loading code uses the swapgs instruction to switch to the user gs_base temporarily. This is unsave in an lightweight exit-path in KVM on AMD because the KERNEL_GS_BASE MSR is switches lazily. An NMI happening in the critical path of load_gs_index may use the wrong GS_BASE value then leading to unpredictable behavior, e.g. a triple-fault. This patch fixes the issue by making sure that load_gs_index is called only with a valid KERNEL_GS_BASE value loaded in KVM. Signed-off-by: Joerg Roedel Signed-off-by: Avi Kivity --- arch/x86/kvm/svm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 25bd1bc5aad2..54ce246a383e 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1150,8 +1150,8 @@ static void svm_vcpu_put(struct kvm_vcpu *vcpu) kvm_load_ldt(svm->host.ldt); #ifdef CONFIG_X86_64 loadsegment(fs, svm->host.fs); - load_gs_index(svm->host.gs); wrmsrl(MSR_KERNEL_GS_BASE, current->thread.gs); + load_gs_index(svm->host.gs); #else loadsegment(gs, svm->host.gs); #endif From ac66808814036b4c33dd98091b2176ae6157f1a8 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 9 Feb 2011 16:15:32 +0000 Subject: [PATCH 143/277] drm/i915: Disable RC6 on Ironlake The automatic powersaving feature is once again causing havoc, with 100% reliable hangs on boot and resume on affected machines. Reported-by: Francesco Allertsen Reported-by: Gui Rui Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=28582 Signed-off-by: Chris Wilson --- drivers/gpu/drm/i915/i915_drv.c | 5 +- drivers/gpu/drm/i915/i915_drv.h | 1 + drivers/gpu/drm/i915/intel_display.c | 96 +++++++++++++++------------- drivers/gpu/drm/i915/intel_drv.h | 1 - 4 files changed, 57 insertions(+), 46 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index cfb56d0ff367..0ad533f06af9 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -46,6 +46,9 @@ module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400); unsigned int i915_powersave = 1; module_param_named(powersave, i915_powersave, int, 0600); +unsigned int i915_enable_rc6 = 0; +module_param_named(i915_enable_rc6, i915_enable_rc6, int, 0600); + unsigned int i915_lvds_downclock = 0; module_param_named(lvds_downclock, i915_lvds_downclock, int, 0400); @@ -360,7 +363,7 @@ static int i915_drm_thaw(struct drm_device *dev) /* Resume the modeset for every activated CRTC */ drm_helper_resume_force_mode(dev); - if (dev_priv->renderctx && dev_priv->pwrctx) + if (IS_IRONLAKE_M(dev)) ironlake_enable_rc6(dev); } diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index a0149c619cdd..65dfe81d0035 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -958,6 +958,7 @@ extern unsigned int i915_fbpercrtc; extern unsigned int i915_powersave; extern unsigned int i915_lvds_downclock; extern unsigned int i915_panel_use_ssc; +extern unsigned int i915_enable_rc6; extern int i915_suspend(struct drm_device *dev, pm_message_t state); extern int i915_resume(struct drm_device *dev); diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 7e42aa586504..94622e3a202e 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6463,29 +6463,19 @@ void intel_enable_clock_gating(struct drm_device *dev) } } -void intel_disable_clock_gating(struct drm_device *dev) +static void ironlake_teardown_rc6(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; if (dev_priv->renderctx) { - struct drm_i915_gem_object *obj = dev_priv->renderctx; - - I915_WRITE(CCID, 0); - POSTING_READ(CCID); - - i915_gem_object_unpin(obj); - drm_gem_object_unreference(&obj->base); + i915_gem_object_unpin(dev_priv->renderctx); + drm_gem_object_unreference(&dev_priv->renderctx->base); dev_priv->renderctx = NULL; } if (dev_priv->pwrctx) { - struct drm_i915_gem_object *obj = dev_priv->pwrctx; - - I915_WRITE(PWRCTXA, 0); - POSTING_READ(PWRCTXA); - - i915_gem_object_unpin(obj); - drm_gem_object_unreference(&obj->base); + i915_gem_object_unpin(dev_priv->pwrctx); + drm_gem_object_unreference(&dev_priv->pwrctx->base); dev_priv->pwrctx = NULL; } } @@ -6494,21 +6484,39 @@ static void ironlake_disable_rc6(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; - /* Wake the GPU, prevent RC6, then restore RSTDBYCTL */ - I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) | RCX_SW_EXIT); - wait_for(((I915_READ(RSTDBYCTL) & RSX_STATUS_MASK) == RSX_STATUS_ON), - 10); - POSTING_READ(CCID); - I915_WRITE(PWRCTXA, 0); - POSTING_READ(PWRCTXA); - I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) & ~RCX_SW_EXIT); - POSTING_READ(RSTDBYCTL); - i915_gem_object_unpin(dev_priv->renderctx); - drm_gem_object_unreference(&dev_priv->renderctx->base); - dev_priv->renderctx = NULL; - i915_gem_object_unpin(dev_priv->pwrctx); - drm_gem_object_unreference(&dev_priv->pwrctx->base); - dev_priv->pwrctx = NULL; + if (I915_READ(PWRCTXA)) { + /* Wake the GPU, prevent RC6, then restore RSTDBYCTL */ + I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) | RCX_SW_EXIT); + wait_for(((I915_READ(RSTDBYCTL) & RSX_STATUS_MASK) == RSX_STATUS_ON), + 50); + + I915_WRITE(PWRCTXA, 0); + POSTING_READ(PWRCTXA); + + I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) & ~RCX_SW_EXIT); + POSTING_READ(RSTDBYCTL); + } + + ironlake_disable_rc6(dev); +} + +static int ironlake_setup_rc6(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + + if (dev_priv->renderctx == NULL) + dev_priv->renderctx = intel_alloc_context_page(dev); + if (!dev_priv->renderctx) + return -ENOMEM; + + if (dev_priv->pwrctx == NULL) + dev_priv->pwrctx = intel_alloc_context_page(dev); + if (!dev_priv->pwrctx) { + ironlake_teardown_rc6(dev); + return -ENOMEM; + } + + return 0; } void ironlake_enable_rc6(struct drm_device *dev) @@ -6516,15 +6524,26 @@ void ironlake_enable_rc6(struct drm_device *dev) struct drm_i915_private *dev_priv = dev->dev_private; int ret; + /* rc6 disabled by default due to repeated reports of hanging during + * boot and resume. + */ + if (!i915_enable_rc6) + return; + + ret = ironlake_setup_rc6(dev); + if (ret) + return; + /* * GPU can automatically power down the render unit if given a page * to save state. */ ret = BEGIN_LP_RING(6); if (ret) { - ironlake_disable_rc6(dev); + ironlake_teardown_rc6(dev); return; } + OUT_RING(MI_SUSPEND_FLUSH | MI_SUSPEND_FLUSH_EN); OUT_RING(MI_SET_CONTEXT); OUT_RING(dev_priv->renderctx->gtt_offset | @@ -6541,6 +6560,7 @@ void ironlake_enable_rc6(struct drm_device *dev) I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) & ~RCX_SW_EXIT); } + /* Set up chip specific display functions */ static void intel_init_display(struct drm_device *dev) { @@ -6783,21 +6803,9 @@ void intel_modeset_init(struct drm_device *dev) if (IS_GEN6(dev)) gen6_enable_rps(dev_priv); - if (IS_IRONLAKE_M(dev)) { - dev_priv->renderctx = intel_alloc_context_page(dev); - if (!dev_priv->renderctx) - goto skip_rc6; - dev_priv->pwrctx = intel_alloc_context_page(dev); - if (!dev_priv->pwrctx) { - i915_gem_object_unpin(dev_priv->renderctx); - drm_gem_object_unreference(&dev_priv->renderctx->base); - dev_priv->renderctx = NULL; - goto skip_rc6; - } + if (IS_IRONLAKE_M(dev)) ironlake_enable_rc6(dev); - } -skip_rc6: INIT_WORK(&dev_priv->idle_work, intel_idle_update); setup_timer(&dev_priv->idle_timer, intel_gpu_idle_timer, (unsigned long)dev); diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 74db2557d644..2c431049963c 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -298,7 +298,6 @@ extern void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, extern void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, u16 *blue, int regno); extern void intel_enable_clock_gating(struct drm_device *dev); -extern void intel_disable_clock_gating(struct drm_device *dev); extern void ironlake_enable_drps(struct drm_device *dev); extern void ironlake_disable_drps(struct drm_device *dev); extern void gen6_enable_rps(struct drm_i915_private *dev_priv); From 15490ef8ff8fd22d677cb5d4f6a98e5a79118dba Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 9 Feb 2011 16:33:46 +0000 Subject: [PATCH 144/277] ARM: Avoid building unsafe kernels on OMAP2 and MX3 OMAP2 (armv6) and MX3 turn off support for the V6K instructions, which when they include support for SMP kernels means that the resulting kernel is unsafe on SMP and can result in corrupted filesystems as we end up using unsafe bitops. Re-enable the use of V6K instructions on such kernels, and let such kernels running on V6 CPUs eat undefined instruction faults which will be much safer than filesystem corruption. Next merge window we can fix this properly (as it requires a much bigger set of changes.) Acked-by: Tony Lindgren Signed-off-by: Russell King --- arch/arm/mm/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 9d30c6f804b9..c9d2d56feced 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -405,7 +405,7 @@ config CPU_V6 config CPU_32v6K bool "Support ARM V6K processor extensions" if !SMP depends on CPU_V6 || CPU_V7 - default y if SMP && !(ARCH_MX3 || ARCH_OMAP2) + default y if SMP help Say Y here if your ARMv6 processor supports the 'K' extension. This enables the kernel to use some instructions not present @@ -416,7 +416,7 @@ config CPU_32v6K # ARMv7 config CPU_V7 bool "Support ARM V7 processor" if ARCH_INTEGRATOR || MACH_REALVIEW_EB || MACH_REALVIEW_PBX - select CPU_32v6K if !ARCH_OMAP2 + select CPU_32v6K select CPU_32v7 select CPU_ABRT_EV7 select CPU_PABRT_V7 From 3c323c01b6bd5fd01be21a8f0cdc11e55997aa06 Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Mon, 7 Feb 2011 13:39:52 +0000 Subject: [PATCH 145/277] Staging: comedi: Add MODULE_LICENSE and similar to NI modules As mentioned by W. Trevor King on the devel@linuxdriverproject.org list on "Thu, 27 Jan 2011 18:52:15 -0500", "Message-ID: <20110127235214.GA5107@thialfi.dhcp.drexel.edu>", the ni_pcimio module is missing module metadata, including a license. This patch adds module metadata to all the NI comedi driver modules. It also removes a duplicate MODULE_LICENSE("GPL") line from the "mite" module. Signed-off-by: Ian Abbott Cc: W. Trevor King Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/mite.c | 2 -- drivers/staging/comedi/drivers/ni_6527.c | 4 ++++ drivers/staging/comedi/drivers/ni_65xx.c | 4 ++++ drivers/staging/comedi/drivers/ni_660x.c | 4 ++++ drivers/staging/comedi/drivers/ni_670x.c | 4 ++++ drivers/staging/comedi/drivers/ni_pcidio.c | 4 ++++ drivers/staging/comedi/drivers/ni_pcimio.c | 4 ++++ 7 files changed, 24 insertions(+), 2 deletions(-) diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index cd25b241cc1f..fd274e9c7b78 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -61,8 +61,6 @@ #define PCI_DAQ_SIZE 4096 #define PCI_DAQ_SIZE_660X 8192 -MODULE_LICENSE("GPL"); - struct mite_struct *mite_devices; EXPORT_SYMBOL(mite_devices); diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c index 14e716e99a5c..54741c9e1af5 100644 --- a/drivers/staging/comedi/drivers/ni_6527.c +++ b/drivers/staging/comedi/drivers/ni_6527.c @@ -527,3 +527,7 @@ static void __exit driver_ni6527_cleanup_module(void) module_init(driver_ni6527_init_module); module_exit(driver_ni6527_cleanup_module); + +MODULE_AUTHOR("Comedi http://www.comedi.org"); +MODULE_DESCRIPTION("Comedi low-level driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/staging/comedi/drivers/ni_65xx.c b/drivers/staging/comedi/drivers/ni_65xx.c index 8b8e2aaf77fb..403fc0997d37 100644 --- a/drivers/staging/comedi/drivers/ni_65xx.c +++ b/drivers/staging/comedi/drivers/ni_65xx.c @@ -871,3 +871,7 @@ static void __exit driver_ni_65xx_cleanup_module(void) module_init(driver_ni_65xx_init_module); module_exit(driver_ni_65xx_cleanup_module); + +MODULE_AUTHOR("Comedi http://www.comedi.org"); +MODULE_DESCRIPTION("Comedi low-level driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 6612b085c4ef..ca2aeaa9449c 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -1421,3 +1421,7 @@ static int ni_660x_dio_insn_config(struct comedi_device *dev, }; return 0; } + +MODULE_AUTHOR("Comedi http://www.comedi.org"); +MODULE_DESCRIPTION("Comedi low-level driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/staging/comedi/drivers/ni_670x.c b/drivers/staging/comedi/drivers/ni_670x.c index e9f034efdc6f..d8d91f90060e 100644 --- a/drivers/staging/comedi/drivers/ni_670x.c +++ b/drivers/staging/comedi/drivers/ni_670x.c @@ -384,3 +384,7 @@ static int ni_670x_find_device(struct comedi_device *dev, int bus, int slot) mite_list_devices(); return -EIO; } + +MODULE_AUTHOR("Comedi http://www.comedi.org"); +MODULE_DESCRIPTION("Comedi low-level driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c index 84a15c34e484..005d2fe86ee4 100644 --- a/drivers/staging/comedi/drivers/ni_pcidio.c +++ b/drivers/staging/comedi/drivers/ni_pcidio.c @@ -1354,3 +1354,7 @@ static void __exit driver_pcidio_cleanup_module(void) module_init(driver_pcidio_init_module); module_exit(driver_pcidio_cleanup_module); + +MODULE_AUTHOR("Comedi http://www.comedi.org"); +MODULE_DESCRIPTION("Comedi low-level driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/staging/comedi/drivers/ni_pcimio.c b/drivers/staging/comedi/drivers/ni_pcimio.c index 23a381247285..9148abdad074 100644 --- a/drivers/staging/comedi/drivers/ni_pcimio.c +++ b/drivers/staging/comedi/drivers/ni_pcimio.c @@ -1853,3 +1853,7 @@ static int pcimio_dio_change(struct comedi_device *dev, return 0; } + +MODULE_AUTHOR("Comedi http://www.comedi.org"); +MODULE_DESCRIPTION("Comedi low-level driver"); +MODULE_LICENSE("GPL"); From 0742cecbd431fd057b45fd8c0d60f0907e00e17f Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Tue, 8 Feb 2011 15:26:33 +0000 Subject: [PATCH 146/277] Staging: Comedi: Fix a few NI module dependencies The ni_tio and ni_tio modules do not depend on the 8255 module, but the ni_atmio, ni_mio_cs and ni_pcimio modules do need the 8255 module. The ni_pcimio module also needs the comedi_fc module. Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/Kconfig | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig index aad47326d6dc..1502d80f6f78 100644 --- a/drivers/staging/comedi/Kconfig +++ b/drivers/staging/comedi/Kconfig @@ -439,6 +439,7 @@ config COMEDI_NI_AT_AO config COMEDI_NI_ATMIO tristate "NI AT-MIO E series ISA-PNP card support" depends on ISAPNP && COMEDI_NI_TIO && COMEDI_NI_COMMON + select COMEDI_8255 default N ---help--- Enable support for National Instruments AT-MIO E series cards @@ -1040,6 +1041,8 @@ config COMEDI_NI_PCIDIO config COMEDI_NI_PCIMIO tristate "NI PCI-MIO-E series and M series support" depends on COMEDI_NI_TIO && COMEDI_NI_COMMON + select COMEDI_8255 + select COMEDI_FC default N ---help--- Enable support for National Instruments PCI-MIO-E series and M series @@ -1164,6 +1167,7 @@ config COMEDI_NI_LABPC_CS config COMEDI_NI_MIO_CS tristate "NI DAQCard E series PCMCIA support" depends on COMEDI_NI_TIO && COMEDI_NI_COMMON + select COMEDI_8255 select COMEDI_FC default N ---help--- @@ -1268,7 +1272,6 @@ config COMEDI_MITE config COMEDI_NI_TIO tristate "NI general purpose counter support" depends on COMEDI_MITE - select COMEDI_8255 default N ---help--- Enable support for National Instruments general purpose counters. From 5414e557fca545614ceedc3d3496f747457e2e3b Mon Sep 17 00:00:00 2001 From: Nitin Gupta Date: Sat, 5 Feb 2011 20:34:20 -0500 Subject: [PATCH 147/277] staging: zram: fix data corruption issue In zram_read() and zram_write() we were not incrementing the index number and thus were reading/writing values from/to incorrect sectors on zram disk, resulting in data corruption. Signed-off-by: Nitin Gupta Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/staging/zram/zram_drv.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c index 5415712f01f8..4bd8cbdaee76 100644 --- a/drivers/staging/zram/zram_drv.c +++ b/drivers/staging/zram/zram_drv.c @@ -227,6 +227,7 @@ static int zram_read(struct zram *zram, struct bio *bio) if (zram_test_flag(zram, index, ZRAM_ZERO)) { handle_zero_page(page); + index++; continue; } @@ -235,12 +236,14 @@ static int zram_read(struct zram *zram, struct bio *bio) pr_debug("Read before write: sector=%lu, size=%u", (ulong)(bio->bi_sector), bio->bi_size); /* Do nothing */ + index++; continue; } /* Page is stored uncompressed since it's incompressible */ if (unlikely(zram_test_flag(zram, index, ZRAM_UNCOMPRESSED))) { handle_uncompressed_page(zram, page, index); + index++; continue; } @@ -320,6 +323,7 @@ static int zram_write(struct zram *zram, struct bio *bio) mutex_unlock(&zram->lock); zram_stat_inc(&zram->stats.pages_zero); zram_set_flag(zram, index, ZRAM_ZERO); + index++; continue; } From 75d1a7522f8b3f4de3eea040fdcdb640deeda64d Mon Sep 17 00:00:00 2001 From: Toshiharu Okada Date: Wed, 9 Feb 2011 12:28:06 -0800 Subject: [PATCH 148/277] pch_gbe: Fix the issue which a driver locks when rx offload is set by ethtool This driver will be in a deadlock, When the rx offload is set by ethtool. The pch_gbe_reinit_locked function was modified. Signed-off-by: Toshiharu Okada Signed-off-by: David S. Miller --- drivers/net/pch_gbe/pch_gbe_main.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/net/pch_gbe/pch_gbe_main.c b/drivers/net/pch_gbe/pch_gbe_main.c index 1bf12339441b..4c9a7d4f3fca 100644 --- a/drivers/net/pch_gbe/pch_gbe_main.c +++ b/drivers/net/pch_gbe/pch_gbe_main.c @@ -519,7 +519,9 @@ static void pch_gbe_reset_task(struct work_struct *work) struct pch_gbe_adapter *adapter; adapter = container_of(work, struct pch_gbe_adapter, reset_task); + rtnl_lock(); pch_gbe_reinit_locked(adapter); + rtnl_unlock(); } /** @@ -528,14 +530,8 @@ static void pch_gbe_reset_task(struct work_struct *work) */ void pch_gbe_reinit_locked(struct pch_gbe_adapter *adapter) { - struct net_device *netdev = adapter->netdev; - - rtnl_lock(); - if (netif_running(netdev)) { - pch_gbe_down(adapter); - pch_gbe_up(adapter); - } - rtnl_unlock(); + pch_gbe_down(adapter); + pch_gbe_up(adapter); } /** From 69e6ed186009ce86cbf5da95f45227064134d694 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 9 Feb 2011 12:43:38 -0800 Subject: [PATCH 149/277] can: softing_cs needs slab.h From: Randy Dunlap softing_cs.c uses kzalloc & kfree, so it needs to include linux/slab.h. drivers/net/can/softing/softing_cs.c:234: error: implicit declaration of function 'kfree' drivers/net/can/softing/softing_cs.c:271: error: implicit declaration of function 'kzalloc' Signed-off-by: Randy Dunlap Signed-off-by: David S. Miller --- drivers/net/can/softing/softing_cs.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/can/softing/softing_cs.c b/drivers/net/can/softing/softing_cs.c index 300fe75dd1a7..c11bb4de8630 100644 --- a/drivers/net/can/softing/softing_cs.c +++ b/drivers/net/can/softing/softing_cs.c @@ -19,6 +19,7 @@ #include #include +#include #include #include From 139467433e50926d22338e9dc754feaaf94b9db0 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 9 Feb 2011 20:01:16 +0000 Subject: [PATCH 150/277] drm/i915/sdvo: If we have an EDID confirm it matches the mode of the connection If we have an EDID for a digital panel, but we are probing a non-TMDS connector then we know that this is a false detection, and vice versa. This should reduce the number of bogus outputs on multi-function adapters that report the same output on multiple connectors. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=34101 Reported-by: Sebastien Caty Tested-by: Sebastien Caty Signed-off-by: Chris Wilson Cc: stable@kernel.org --- drivers/gpu/drm/i915/intel_sdvo.c | 32 ++++++++++++++++++++++++++----- 1 file changed, 27 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index 6a09c1413d60..d2dd90a9a101 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -46,6 +46,7 @@ SDVO_TV_MASK) #define IS_TV(c) (c->output_flag & SDVO_TV_MASK) +#define IS_TMDS(c) (c->output_flag & SDVO_TMDS_MASK) #define IS_LVDS(c) (c->output_flag & SDVO_LVDS_MASK) #define IS_TV_OR_LVDS(c) (c->output_flag & (SDVO_TV_MASK | SDVO_LVDS_MASK)) @@ -1359,7 +1360,8 @@ intel_sdvo_hdmi_sink_detect(struct drm_connector *connector) intel_sdvo->has_hdmi_monitor = drm_detect_hdmi_monitor(edid); intel_sdvo->has_hdmi_audio = drm_detect_monitor_audio(edid); } - } + } else + status = connector_status_disconnected; connector->display_info.raw_edid = NULL; kfree(edid); } @@ -1407,10 +1409,25 @@ intel_sdvo_detect(struct drm_connector *connector, bool force) if ((intel_sdvo_connector->output_flag & response) == 0) ret = connector_status_disconnected; - else if (response & SDVO_TMDS_MASK) + else if (IS_TMDS(intel_sdvo_connector)) ret = intel_sdvo_hdmi_sink_detect(connector); - else - ret = connector_status_connected; + else { + struct edid *edid; + + /* if we have an edid check it matches the connection */ + edid = intel_sdvo_get_edid(connector); + if (edid == NULL) + edid = intel_sdvo_get_analog_edid(connector); + if (edid != NULL) { + if (edid->input & DRM_EDID_INPUT_DIGITAL) + ret = connector_status_disconnected; + else + ret = connector_status_connected; + connector->display_info.raw_edid = NULL; + kfree(edid); + } else + ret = connector_status_connected; + } /* May update encoder flag for like clock for SDVO TV, etc.*/ if (ret == connector_status_connected) { @@ -1446,10 +1463,15 @@ static void intel_sdvo_get_ddc_modes(struct drm_connector *connector) edid = intel_sdvo_get_analog_edid(connector); if (edid != NULL) { - if (edid->input & DRM_EDID_INPUT_DIGITAL) { + struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector); + bool monitor_is_digital = !!(edid->input & DRM_EDID_INPUT_DIGITAL); + bool connector_is_digital = !!IS_TMDS(intel_sdvo_connector); + + if (connector_is_digital == monitor_is_digital) { drm_mode_connector_update_edid_property(connector, edid); drm_add_edid_modes(connector, edid); } + connector->display_info.raw_edid = NULL; kfree(edid); } From 2778fb13ba0fed1b3e4a040e71f7881d399610a3 Mon Sep 17 00:00:00 2001 From: Dirk Eibach Date: Wed, 9 Feb 2011 04:51:34 -0500 Subject: [PATCH 151/277] hwmon: (lm63) Consider LM64 temperature offset LM64 has 16 degrees Celsius temperature offset on all remote sensor registers. This was not considered When LM64 support was added to lm63.c. Signed-off-by: Dirk Eibach Signed-off-by: Guenter Roeck Cc: stable@kernel.org --- drivers/hwmon/lm63.c | 59 +++++++++++++++++++++++++++++++++++--------- 1 file changed, 47 insertions(+), 12 deletions(-) diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c index 776aeb3019d2..508cb291f71b 100644 --- a/drivers/hwmon/lm63.c +++ b/drivers/hwmon/lm63.c @@ -98,6 +98,9 @@ static const unsigned short normal_i2c[] = { 0x18, 0x4c, 0x4e, I2C_CLIENT_END }; * value, it uses signed 8-bit values with LSB = 1 degree Celsius. * For remote temperature, low and high limits, it uses signed 11-bit values * with LSB = 0.125 degree Celsius, left-justified in 16-bit registers. + * For LM64 the actual remote diode temperature is 16 degree Celsius higher + * than the register reading. Remote temperature setpoints have to be + * adapted accordingly. */ #define FAN_FROM_REG(reg) ((reg) == 0xFFFC || (reg) == 0 ? 0 : \ @@ -165,6 +168,8 @@ struct lm63_data { struct mutex update_lock; char valid; /* zero until following fields are valid */ unsigned long last_updated; /* in jiffies */ + int kind; + int temp2_offset; /* registers values */ u8 config, config_fan; @@ -247,16 +252,34 @@ static ssize_t show_pwm1_enable(struct device *dev, struct device_attribute *dum return sprintf(buf, "%d\n", data->config_fan & 0x20 ? 1 : 2); } -static ssize_t show_temp8(struct device *dev, struct device_attribute *devattr, - char *buf) +/* + * There are 8bit registers for both local(temp1) and remote(temp2) sensor. + * For remote sensor registers temp2_offset has to be considered, + * for local sensor it must not. + * So we need separate 8bit accessors for local and remote sensor. + */ +static ssize_t show_local_temp8(struct device *dev, + struct device_attribute *devattr, + char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct lm63_data *data = lm63_update_device(dev); return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->temp8[attr->index])); } -static ssize_t set_temp8(struct device *dev, struct device_attribute *dummy, - const char *buf, size_t count) +static ssize_t show_remote_temp8(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct lm63_data *data = lm63_update_device(dev); + return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->temp8[attr->index]) + + data->temp2_offset); +} + +static ssize_t set_local_temp8(struct device *dev, + struct device_attribute *dummy, + const char *buf, size_t count) { struct i2c_client *client = to_i2c_client(dev); struct lm63_data *data = i2c_get_clientdata(client); @@ -274,7 +297,8 @@ static ssize_t show_temp11(struct device *dev, struct device_attribute *devattr, { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct lm63_data *data = lm63_update_device(dev); - return sprintf(buf, "%d\n", TEMP11_FROM_REG(data->temp11[attr->index])); + return sprintf(buf, "%d\n", TEMP11_FROM_REG(data->temp11[attr->index]) + + data->temp2_offset); } static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr, @@ -294,7 +318,7 @@ static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr, int nr = attr->index; mutex_lock(&data->update_lock); - data->temp11[nr] = TEMP11_TO_REG(val); + data->temp11[nr] = TEMP11_TO_REG(val - data->temp2_offset); i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2], data->temp11[nr] >> 8); i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2 + 1], @@ -310,6 +334,7 @@ static ssize_t show_temp2_crit_hyst(struct device *dev, struct device_attribute { struct lm63_data *data = lm63_update_device(dev); return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->temp8[2]) + + data->temp2_offset - TEMP8_FROM_REG(data->temp2_crit_hyst)); } @@ -324,7 +349,7 @@ static ssize_t set_temp2_crit_hyst(struct device *dev, struct device_attribute * long hyst; mutex_lock(&data->update_lock); - hyst = TEMP8_FROM_REG(data->temp8[2]) - val; + hyst = TEMP8_FROM_REG(data->temp8[2]) + data->temp2_offset - val; i2c_smbus_write_byte_data(client, LM63_REG_REMOTE_TCRIT_HYST, HYST_TO_REG(hyst)); mutex_unlock(&data->update_lock); @@ -355,16 +380,21 @@ static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan, static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm1, set_pwm1); static DEVICE_ATTR(pwm1_enable, S_IRUGO, show_pwm1_enable, NULL); -static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp8, NULL, 0); -static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp8, - set_temp8, 1); +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_local_temp8, NULL, 0); +static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_local_temp8, + set_local_temp8, 1); static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp11, NULL, 0); static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp11, set_temp11, 1); static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp11, set_temp11, 2); -static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO, show_temp8, NULL, 2); +/* + * On LM63, temp2_crit can be set only once, which should be job + * of the bootloader. + */ +static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO, show_remote_temp8, + NULL, 2); static DEVICE_ATTR(temp2_crit_hyst, S_IWUSR | S_IRUGO, show_temp2_crit_hyst, set_temp2_crit_hyst); @@ -479,7 +509,12 @@ static int lm63_probe(struct i2c_client *new_client, data->valid = 0; mutex_init(&data->update_lock); - /* Initialize the LM63 chip */ + /* Set the device type */ + data->kind = id->driver_data; + if (data->kind == lm64) + data->temp2_offset = 16000; + + /* Initialize chip */ lm63_init_client(new_client); /* Register sysfs hooks */ From bcf721d14d881da86a8defa96bdc9492abe191ae Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Wed, 9 Feb 2011 11:51:29 -0800 Subject: [PATCH 152/277] hwmon: (emc1403) Fix I2C address range I2C address range included 0x2a, which the chips do not support. Replace with 0x29 which is supported but was missing. Signed-off-by: Guenter Roeck Acked-by: Jean Delvare --- drivers/hwmon/emc1403.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwmon/emc1403.c b/drivers/hwmon/emc1403.c index 5dea9faa1656..cd2a6e437aec 100644 --- a/drivers/hwmon/emc1403.c +++ b/drivers/hwmon/emc1403.c @@ -344,7 +344,7 @@ static int emc1403_remove(struct i2c_client *client) } static const unsigned short emc1403_address_list[] = { - 0x18, 0x2a, 0x4c, 0x4d, I2C_CLIENT_END + 0x18, 0x29, 0x4c, 0x4d, I2C_CLIENT_END }; static const struct i2c_device_id emc1403_idtable[] = { From cd141eeea911029b248cecf2fc464a12fe575dcf Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 9 Feb 2011 13:54:26 -0800 Subject: [PATCH 153/277] isdn: hysdn: Kill (partially buggy) CVS regision log reporting. Some cases try to modify const strings, and in any event the CVS revision strings have not changed in over ten years making these printouts completely worthless. Just kill all of this stuff off. Reported-by: Randy Dunlap Signed-off-by: David S. Miller --- drivers/isdn/hysdn/hysdn_defs.h | 2 -- drivers/isdn/hysdn/hysdn_init.c | 26 +------------------------- drivers/isdn/hysdn/hysdn_net.c | 3 --- drivers/isdn/hysdn/hysdn_procconf.c | 3 +-- 4 files changed, 2 insertions(+), 32 deletions(-) diff --git a/drivers/isdn/hysdn/hysdn_defs.h b/drivers/isdn/hysdn/hysdn_defs.h index 729df4089385..18b801ad97a4 100644 --- a/drivers/isdn/hysdn/hysdn_defs.h +++ b/drivers/isdn/hysdn/hysdn_defs.h @@ -227,7 +227,6 @@ extern hysdn_card *card_root; /* pointer to first card */ /*************************/ /* im/exported functions */ /*************************/ -extern char *hysdn_getrev(const char *); /* hysdn_procconf.c */ extern int hysdn_procconf_init(void); /* init proc config filesys */ @@ -259,7 +258,6 @@ extern int hysdn_tx_cfgline(hysdn_card *, unsigned char *, /* hysdn_net.c */ extern unsigned int hynet_enable; -extern char *hysdn_net_revision; extern int hysdn_net_create(hysdn_card *); /* create a new net device */ extern int hysdn_net_release(hysdn_card *); /* delete the device */ extern char *hysdn_net_getname(hysdn_card *); /* get name of net interface */ diff --git a/drivers/isdn/hysdn/hysdn_init.c b/drivers/isdn/hysdn/hysdn_init.c index b7cc5c2f08c6..0ab42ace1692 100644 --- a/drivers/isdn/hysdn/hysdn_init.c +++ b/drivers/isdn/hysdn/hysdn_init.c @@ -36,7 +36,6 @@ MODULE_DESCRIPTION("ISDN4Linux: Driver for HYSDN cards"); MODULE_AUTHOR("Werner Cornelius"); MODULE_LICENSE("GPL"); -static char *hysdn_init_revision = "$Revision: 1.6.6.6 $"; static int cardmax; /* number of found cards */ hysdn_card *card_root = NULL; /* pointer to first card */ static hysdn_card *card_last = NULL; /* pointer to first card */ @@ -49,25 +48,6 @@ static hysdn_card *card_last = NULL; /* pointer to first card */ /* Additionally newer versions may be activated without rebooting. */ /****************************************************************************/ -/******************************************************/ -/* extract revision number from string for log output */ -/******************************************************/ -char * -hysdn_getrev(const char *revision) -{ - char *rev; - char *p; - - if ((p = strchr(revision, ':'))) { - rev = p + 2; - p = strchr(rev, '$'); - *--p = 0; - } else - rev = "???"; - return rev; -} - - /****************************************************************************/ /* init_module is called once when the module is loaded to do all necessary */ /* things like autodetect... */ @@ -175,13 +155,9 @@ static int hysdn_have_procfs; static int __init hysdn_init(void) { - char tmp[50]; int rc; - strcpy(tmp, hysdn_init_revision); - printk(KERN_NOTICE "HYSDN: module Rev: %s loaded\n", hysdn_getrev(tmp)); - strcpy(tmp, hysdn_net_revision); - printk(KERN_NOTICE "HYSDN: network interface Rev: %s \n", hysdn_getrev(tmp)); + printk(KERN_NOTICE "HYSDN: module loaded\n"); rc = pci_register_driver(&hysdn_pci_driver); if (rc) diff --git a/drivers/isdn/hysdn/hysdn_net.c b/drivers/isdn/hysdn/hysdn_net.c index feec8d89d719..11f2cce26005 100644 --- a/drivers/isdn/hysdn/hysdn_net.c +++ b/drivers/isdn/hysdn/hysdn_net.c @@ -26,9 +26,6 @@ unsigned int hynet_enable = 0xffffffff; module_param(hynet_enable, uint, 0); -/* store the actual version for log reporting */ -char *hysdn_net_revision = "$Revision: 1.8.6.4 $"; - #define MAX_SKB_BUFFERS 20 /* number of buffers for keeping TX-data */ /****************************************************************************/ diff --git a/drivers/isdn/hysdn/hysdn_procconf.c b/drivers/isdn/hysdn/hysdn_procconf.c index 96b3e39c3356..5fe83bd42061 100644 --- a/drivers/isdn/hysdn/hysdn_procconf.c +++ b/drivers/isdn/hysdn/hysdn_procconf.c @@ -23,7 +23,6 @@ #include "hysdn_defs.h" static DEFINE_MUTEX(hysdn_conf_mutex); -static char *hysdn_procconf_revision = "$Revision: 1.8.6.4 $"; #define INFO_OUT_LEN 80 /* length of info line including lf */ @@ -404,7 +403,7 @@ hysdn_procconf_init(void) card = card->next; /* next entry */ } - printk(KERN_NOTICE "HYSDN: procfs Rev. %s initialised\n", hysdn_getrev(hysdn_procconf_revision)); + printk(KERN_NOTICE "HYSDN: procfs initialised\n"); return (0); } /* hysdn_procconf_init */ From ebc02e9c524e9ff377dd8a3820522d381adf19c8 Mon Sep 17 00:00:00 2001 From: Tomoya MORINAGA Date: Wed, 9 Feb 2011 16:46:21 -0800 Subject: [PATCH 154/277] pch_can: fix tseg1/tseg2 setting issue Previous patch "[PATCH 1/3] pch_can: fix 800k comms issue" is wrong. I should have modified tseg1_min not tseg2_min. This patch reverts tseg2_min to 1 and set tseg1_min to 2. Signed-off-by: Tomoya MORINAGA Signed-off-by: David S. Miller --- drivers/net/can/pch_can.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c index 7d8bc128044c..e54712b22c27 100644 --- a/drivers/net/can/pch_can.c +++ b/drivers/net/can/pch_can.c @@ -185,9 +185,9 @@ struct pch_can_priv { static struct can_bittiming_const pch_can_bittiming_const = { .name = KBUILD_MODNAME, - .tseg1_min = 1, + .tseg1_min = 2, .tseg1_max = 16, - .tseg2_min = 2, + .tseg2_min = 1, .tseg2_max = 8, .sjw_max = 4, .brp_min = 1, From 195291e68c2ad59a046fc56d32bf59635b100e5c Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Wed, 9 Feb 2011 12:01:42 -0500 Subject: [PATCH 155/277] cifs: clean up checks in cifs_echo_request Follow-on patch to 7e90d705 which is already in Steve's tree... The check for tcpStatus == CifsGood is not meaningful since it doesn't indicate whether the NEGOTIATE request has been done. Also, clarify why we're checking for maxBuf == 0. Signed-off-by: Jeff Layton Signed-off-by: Steve French --- fs/cifs/connect.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 10011e99b34d..161f24ca4f6e 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -338,10 +338,11 @@ cifs_echo_request(struct work_struct *work) struct TCP_Server_Info, echo.work); /* - * We cannot send an echo until the NEGOTIATE_PROTOCOL request is done. - * Also, no need to ping if we got a response recently + * We cannot send an echo until the NEGOTIATE_PROTOCOL request is + * done, which is indicated by maxBuf != 0. Also, no need to ping if + * we got a response recently */ - if ((server->tcpStatus != CifsGood) || (server->maxBuf == 0) || + if (server->maxBuf == 0 || time_before(jiffies, server->lstrp + SMB_ECHO_INTERVAL - HZ)) goto requeue_echo; From 96642d42f076101ba98866363d908cab706d156c Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 9 Feb 2011 21:48:36 -0800 Subject: [PATCH 156/277] x25: Do not reference freed memory. In x25_link_free(), we destroy 'nb' before dereferencing 'nb->dev'. Don't do this, because 'nb' might be freed by then. Reported-by: Randy Dunlap Tested-by: Randy Dunlap Signed-off-by: David S. Miller --- net/x25/x25_link.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/x25/x25_link.c b/net/x25/x25_link.c index 4cbc942f762a..21306928d47f 100644 --- a/net/x25/x25_link.c +++ b/net/x25/x25_link.c @@ -396,9 +396,12 @@ void __exit x25_link_free(void) write_lock_bh(&x25_neigh_list_lock); list_for_each_safe(entry, tmp, &x25_neigh_list) { + struct net_device *dev; + nb = list_entry(entry, struct x25_neigh, node); + dev = nb->dev; __x25_remove_neigh(nb); - dev_put(nb->dev); + dev_put(dev); } write_unlock_bh(&x25_neigh_list_lock); } From 2fb270f3212a1e6a73f86f76c85caee93aae4386 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Wed, 9 Feb 2011 08:21:02 +0000 Subject: [PATCH 157/277] x86: Fix section mismatch in LAPIC initialization Additionally doing things conditionally upon smp_processor_id() being zero is generally a bad idea, as this means CPU 0 cannot be offlined and brought back online later again. While there may be other places where this is done, I think adding more of those should be avoided so that some day SMP can really become "symmetrical". Signed-off-by: Jan Beulich Cc: Cyrill Gorcunov LKML-Reference: <4D525C7E0200007800030EE1@vpn.id2.novell.com> Signed-off-by: Ingo Molnar --- arch/x86/include/asm/apic.h | 1 + arch/x86/kernel/apic/apic.c | 9 +++++++-- arch/x86/kernel/smpboot.c | 4 ++-- 3 files changed, 10 insertions(+), 4 deletions(-) diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h index 5e3969c36d7f..3c896946f4cc 100644 --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -233,6 +233,7 @@ extern void sync_Arb_IDs(void); extern void init_bsp_APIC(void); extern void setup_local_APIC(void); extern void end_local_APIC_setup(void); +extern void bsp_end_local_APIC_setup(void); extern void init_apic_mappings(void); void register_lapic_address(unsigned long address); extern void setup_boot_APIC_clock(void); diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index 06c196d7e59c..76b96d74978a 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -1381,12 +1381,17 @@ void __cpuinit end_local_APIC_setup(void) #endif apic_pm_activate(); +} + +void __init bsp_end_local_APIC_setup(void) +{ + end_local_APIC_setup(); /* * Now that local APIC setup is completed for BP, configure the fault * handling for interrupt remapping. */ - if (!smp_processor_id() && intr_remapping_enabled) + if (intr_remapping_enabled) enable_drhd_fault_handling(); } @@ -1756,7 +1761,7 @@ int __init APIC_init_uniprocessor(void) enable_IO_APIC(); #endif - end_local_APIC_setup(); + bsp_end_local_APIC_setup(); #ifdef CONFIG_X86_IO_APIC if (smp_found_config && !skip_ioapic_setup && nr_ioapics) diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 03273b6c272c..08776a953487 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -1060,7 +1060,7 @@ static int __init smp_sanity_check(unsigned max_cpus) connect_bsp_APIC(); setup_local_APIC(); - end_local_APIC_setup(); + bsp_end_local_APIC_setup(); return -1; } @@ -1137,7 +1137,7 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus) if (!skip_ioapic_setup && nr_ioapics) enable_IO_APIC(); - end_local_APIC_setup(); + bsp_end_local_APIC_setup(); map_cpu_to_logical_apicid(); From 0193c00e85a35ceee7856c89c25b34d5752e0baa Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 10 Feb 2011 13:05:13 +0000 Subject: [PATCH 158/277] ARM: make SWP emulation explicit on !CPU_USE_DOMAINS SWP emulation requires that CPU domain support is disabled in order to work safely. Make that explicit in the kernel configuration to prevent illegal configurations being generated. Signed-off-by: Russell King --- arch/arm/mm/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index c9d2d56feced..e4509bae8fc4 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -644,7 +644,7 @@ config ARM_THUMBEE config SWP_EMULATE bool "Emulate SWP/SWPB instructions" - depends on CPU_V7 && !CPU_V6 + depends on !CPU_USE_DOMAINS && CPU_V7 && !CPU_V6 select HAVE_PROC_CPU if PROC_FS default y if SMP help From 4d7963648f1666ce10cb52391682589af5a62f9a Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Thu, 3 Feb 2011 15:59:57 +0100 Subject: [PATCH 159/277] amd64_edac: Fix DIMMs per DCTs output amd64_debug_display_dimm_sizes() reports the distribution of the DIMMs on each DRAM controller and its chip select sizes. Thus, the last don't have anything to do with whether we're running in ganged DCT mode or not - their sizes don't change all of a sudden. Fix that by removing the ganged-check and dump DCT0's config for DCT1 when in ganged mode since they're identical. Reported-and-tested-by: Markus Trippelsdorf Signed-off-by: Borislav Petkov --- drivers/edac/amd64_edac.c | 28 ++++++++-------------------- 1 file changed, 8 insertions(+), 20 deletions(-) diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index 4a5ecc58025d..23e03554f0d3 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -826,8 +826,6 @@ static void amd64_dump_dramcfg_low(u32 dclr, int chan) /* Display and decode various NB registers for debug purposes. */ static void amd64_dump_misc_regs(struct amd64_pvt *pvt) { - int ganged; - debugf1("F3xE8 (NB Cap): 0x%08x\n", pvt->nbcap); debugf1(" NB two channel DRAM capable: %s\n", @@ -851,28 +849,19 @@ static void amd64_dump_misc_regs(struct amd64_pvt *pvt) debugf1(" DramHoleValid: %s\n", (pvt->dhar & DHAR_VALID) ? "yes" : "no"); + amd64_debug_display_dimm_sizes(0, pvt); + /* everything below this point is Fam10h and above */ - if (boot_cpu_data.x86 == 0xf) { - amd64_debug_display_dimm_sizes(0, pvt); + if (boot_cpu_data.x86 == 0xf) return; - } + + amd64_debug_display_dimm_sizes(1, pvt); amd64_info("using %s syndromes.\n", ((pvt->syn_type == 8) ? "x8" : "x4")); /* Only if NOT ganged does dclr1 have valid info */ if (!dct_ganging_enabled(pvt)) amd64_dump_dramcfg_low(pvt->dclr1, 1); - - /* - * Determine if ganged and then dump memory sizes for first controller, - * and if NOT ganged dump info for 2nd controller. - */ - ganged = dct_ganging_enabled(pvt); - - amd64_debug_display_dimm_sizes(0, pvt); - - if (!ganged) - amd64_debug_display_dimm_sizes(1, pvt); } /* Read in both of DBAM registers */ @@ -1644,11 +1633,10 @@ static void amd64_debug_display_dimm_sizes(int ctrl, struct amd64_pvt *pvt) WARN_ON(ctrl != 0); } - debugf1("F2x%d80 (DRAM Bank Address Mapping): 0x%08x\n", - ctrl, ctrl ? pvt->dbam1 : pvt->dbam0); + dbam = (ctrl && !dct_ganging_enabled(pvt)) ? pvt->dbam1 : pvt->dbam0; + dcsb = (ctrl && !dct_ganging_enabled(pvt)) ? pvt->dcsb1 : pvt->dcsb0; - dbam = ctrl ? pvt->dbam1 : pvt->dbam0; - dcsb = ctrl ? pvt->dcsb1 : pvt->dcsb0; + debugf1("F2x%d80 (DRAM Bank Address Mapping): 0x%08x\n", ctrl, dbam); edac_printk(KERN_DEBUG, EDAC_MC, "DCT%d chip selects:\n", ctrl); From 4a9cb360197684a861bc06f06d33d5fcc8ffcbf5 Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 10 Feb 2011 15:25:18 +0000 Subject: [PATCH 160/277] ARM: fixup SMP alternatives in modules With certain configurations, we inline the unlock functions in modules, which results in SMP alternatives being created in modules. We need to fix those up when loading a module to prevent undefined instruction faults. Signed-off-by: Russell King --- arch/arm/kernel/head.S | 40 +++++++++++++++++++++++++++------------- arch/arm/kernel/module.c | 22 +++++++++++++++++++++- 2 files changed, 48 insertions(+), 14 deletions(-) diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index c0225da3fb21..f06ff9feb0db 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -391,6 +391,7 @@ ENDPROC(__turn_mmu_on) #ifdef CONFIG_SMP_ON_UP + __INIT __fixup_smp: and r3, r9, #0x000f0000 @ architecture version teq r3, #0x000f0000 @ CPU ID supported? @@ -415,18 +416,7 @@ __fixup_smp_on_up: sub r3, r0, r3 add r4, r4, r3 add r5, r5, r3 -2: cmp r4, r5 - movhs pc, lr - ldmia r4!, {r0, r6} - ARM( str r6, [r0, r3] ) - THUMB( add r0, r0, r3 ) -#ifdef __ARMEB__ - THUMB( mov r6, r6, ror #16 ) @ Convert word order for big-endian. -#endif - THUMB( strh r6, [r0], #2 ) @ For Thumb-2, store as two halfwords - THUMB( mov r6, r6, lsr #16 ) @ to be robust against misaligned r3. - THUMB( strh r6, [r0] ) - b 2b + b __do_fixup_smp_on_up ENDPROC(__fixup_smp) .align @@ -440,7 +430,31 @@ smp_on_up: ALT_SMP(.long 1) ALT_UP(.long 0) .popsection - #endif + .text +__do_fixup_smp_on_up: + cmp r4, r5 + movhs pc, lr + ldmia r4!, {r0, r6} + ARM( str r6, [r0, r3] ) + THUMB( add r0, r0, r3 ) +#ifdef __ARMEB__ + THUMB( mov r6, r6, ror #16 ) @ Convert word order for big-endian. +#endif + THUMB( strh r6, [r0], #2 ) @ For Thumb-2, store as two halfwords + THUMB( mov r6, r6, lsr #16 ) @ to be robust against misaligned r3. + THUMB( strh r6, [r0] ) + b __do_fixup_smp_on_up +ENDPROC(__do_fixup_smp_on_up) + +ENTRY(fixup_smp) + stmfd sp!, {r4 - r6, lr} + mov r4, r0 + add r5, r0, r1 + mov r3, #0 + bl __do_fixup_smp_on_up + ldmfd sp!, {r4 - r6, pc} +ENDPROC(fixup_smp) + #include "head-common.S" diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c index 2cfe8161b478..6d4105e6872f 100644 --- a/arch/arm/kernel/module.c +++ b/arch/arm/kernel/module.c @@ -22,6 +22,7 @@ #include #include +#include #include #ifdef CONFIG_XIP_KERNEL @@ -268,12 +269,28 @@ struct mod_unwind_map { const Elf_Shdr *txt_sec; }; +static const Elf_Shdr *find_mod_section(const Elf32_Ehdr *hdr, + const Elf_Shdr *sechdrs, const char *name) +{ + const Elf_Shdr *s, *se; + const char *secstrs = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; + + for (s = sechdrs, se = sechdrs + hdr->e_shnum; s < se; s++) + if (strcmp(name, secstrs + s->sh_name) == 0) + return s; + + return NULL; +} + +extern void fixup_smp(const void *, unsigned long); + int module_finalize(const Elf32_Ehdr *hdr, const Elf_Shdr *sechdrs, struct module *mod) { + const Elf_Shdr * __maybe_unused s = NULL; #ifdef CONFIG_ARM_UNWIND const char *secstrs = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; - const Elf_Shdr *s, *sechdrs_end = sechdrs + hdr->e_shnum; + const Elf_Shdr *sechdrs_end = sechdrs + hdr->e_shnum; struct mod_unwind_map maps[ARM_SEC_MAX]; int i; @@ -315,6 +332,9 @@ int module_finalize(const Elf32_Ehdr *hdr, const Elf_Shdr *sechdrs, maps[i].txt_sec->sh_addr, maps[i].txt_sec->sh_size); #endif + s = find_mod_section(hdr, sechdrs, ".alt.smp.init"); + if (s && !is_smp()) + fixup_smp((void *)s->sh_addr, s->sh_size); return 0; } From cb06199b1df492fcfbaedd2256b5054f944b664f Mon Sep 17 00:00:00 2001 From: Rabin Vincent Date: Wed, 9 Feb 2011 11:35:12 +0100 Subject: [PATCH 161/277] ARM: 6654/1: perf/oprofile: fix off-by-one in stack check Since tail is the previous fp - 1, we need to compare the new fp with tail + 1 to ensure that we don't end up passing in the same tail again, in order to avoid a potential infinite loop in the perf interrupt handler (which has been observed to occur). A similar fix seems to be needed in the OProfile code. Acked-by: Will Deacon Signed-off-by: Rabin Vincent Signed-off-by: Russell King --- arch/arm/kernel/perf_event.c | 2 +- arch/arm/oprofile/common.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c index 5efa2647a2fb..d150ad1ccb5d 100644 --- a/arch/arm/kernel/perf_event.c +++ b/arch/arm/kernel/perf_event.c @@ -700,7 +700,7 @@ user_backtrace(struct frame_tail __user *tail, * Frame pointers should strictly progress back up the stack * (towards higher addresses). */ - if (tail >= buftail.fp) + if (tail + 1 >= buftail.fp) return NULL; return buftail.fp - 1; diff --git a/arch/arm/oprofile/common.c b/arch/arm/oprofile/common.c index 8aa974491dfc..6adda2b5fa31 100644 --- a/arch/arm/oprofile/common.c +++ b/arch/arm/oprofile/common.c @@ -85,7 +85,7 @@ static struct frame_tail* user_backtrace(struct frame_tail *tail) /* frame pointers should strictly progress back up the stack * (towards higher addresses) */ - if (tail >= buftail[0].fp) + if (tail + 1 >= buftail[0].fp) return NULL; return buftail[0].fp-1; From 41a63f18d339ae6aefe73d45a8147f63f3439b30 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 10 Feb 2011 17:39:20 +0100 Subject: [PATCH 162/277] ALSA: hda - Don't handle empty patch files When an empty string is passed to patch option, the driver should ignore it. Otherwise it gets an error by trying to load it. Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_intel.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 2e91a991eb15..0baffcdee8f9 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -2703,7 +2703,7 @@ static int __devinit azx_probe(struct pci_dev *pci, if (err < 0) goto out_free; #ifdef CONFIG_SND_HDA_PATCH_LOADER - if (patch[dev]) { + if (patch[dev] && *patch[dev]) { snd_printk(KERN_ERR SFX "Applying patch firmware '%s'\n", patch[dev]); err = snd_hda_load_patch(chip->bus, patch[dev]); From a6c47a85b8e7e4a8c47394607c5e5c43224b0892 Mon Sep 17 00:00:00 2001 From: David Henningsson Date: Thu, 10 Feb 2011 15:39:19 +0100 Subject: [PATCH 163/277] ALSA: HDA: Add subwoofer quirk for Acer Aspire 8942G According to the reporter, node 0x15 needs to be muted for subwoofer to stop sounding. This pin is marked as unused by BIOS, so fix that. BugLink: http://bugs.launchpad.net/bugs/715877 Cc: stable@kernel.org (2.6.37+) Reported-by: Hans Peter Signed-off-by: David Henningsson Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 2571d977df22..089a7de2439e 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -19517,6 +19517,7 @@ static const struct alc_fixup alc662_fixups[] = { }; static struct snd_pci_quirk alc662_fixup_tbl[] = { + SND_PCI_QUIRK(0x1025, 0x0308, "Acer Aspire 8942G", ALC662_FIXUP_ASPIRE), SND_PCI_QUIRK(0x1025, 0x038b, "Acer Aspire 8943G", ALC662_FIXUP_ASPIRE), SND_PCI_QUIRK(0x144d, 0xc051, "Samsung R720", ALC662_FIXUP_IDEAPAD), SND_PCI_QUIRK(0x17aa, 0x38af, "Lenovo Ideapad Y550P", ALC662_FIXUP_IDEAPAD), From b1d4f7f4bdcf9915c41ff8cfc4425c84dabb1fde Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Thu, 10 Feb 2011 16:15:44 +0100 Subject: [PATCH 164/277] ALSA: hrtimer: handle delayed timer interrupts If a timer interrupt was delayed too much, hrtimer_forward_now() will forward the timer expiry more than once. When this happens, the additional number of elapsed ALSA timer ticks must be passed to snd_timer_interrupt() to prevent the ALSA timer from falling behind. This mostly fixes MIDI slowdown problems on highly-loaded systems with badly behaved interrupt handlers. Signed-off-by: Clemens Ladisch Reported-and-tested-by: Arthur Marsh Cc: Signed-off-by: Takashi Iwai --- sound/core/hrtimer.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/sound/core/hrtimer.c b/sound/core/hrtimer.c index 7730575bfadd..07efa29dfd4a 100644 --- a/sound/core/hrtimer.c +++ b/sound/core/hrtimer.c @@ -45,12 +45,13 @@ static enum hrtimer_restart snd_hrtimer_callback(struct hrtimer *hrt) { struct snd_hrtimer *stime = container_of(hrt, struct snd_hrtimer, hrt); struct snd_timer *t = stime->timer; + unsigned long oruns; if (!atomic_read(&stime->running)) return HRTIMER_NORESTART; - hrtimer_forward_now(hrt, ns_to_ktime(t->sticks * resolution)); - snd_timer_interrupt(stime->timer, t->sticks); + oruns = hrtimer_forward_now(hrt, ns_to_ktime(t->sticks * resolution)); + snd_timer_interrupt(stime->timer, t->sticks * oruns); if (!atomic_read(&stime->running)) return HRTIMER_NORESTART; From 2243c4d0727ad85aff3f54be9d178632cc9234b2 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Thu, 10 Feb 2011 16:16:32 +0100 Subject: [PATCH 165/277] ALSA: hrtimer: remove superfluous tasklet invocation Commit bb758e9637e5ddc removed snd_hrtimer_callback() from the hardware interrupt handler, thus moving it into a tasklet, but did not tell the ALSA timer framework about this, so the timer handling would now be done in the ALSA timer tasklet scheduled from another tasklet. To fix this, add the flag to tell the ALSA timer framework that the timer handler is already being invoked in a tasklet. Signed-off-by: Clemens Ladisch Signed-off-by: Takashi Iwai --- sound/core/hrtimer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/core/hrtimer.c b/sound/core/hrtimer.c index 07efa29dfd4a..b8b31c433d64 100644 --- a/sound/core/hrtimer.c +++ b/sound/core/hrtimer.c @@ -105,7 +105,7 @@ static int snd_hrtimer_stop(struct snd_timer *t) } static struct snd_timer_hardware hrtimer_hw = { - .flags = SNDRV_TIMER_HW_AUTO, + .flags = SNDRV_TIMER_HW_AUTO | SNDRV_TIMER_HW_TASKLET, .open = snd_hrtimer_open, .close = snd_hrtimer_close, .start = snd_hrtimer_start, From 70a062286b9dfcbd24d2e11601aecfead5cf709a Mon Sep 17 00:00:00 2001 From: Tim Deegan Date: Thu, 10 Feb 2011 08:50:41 +0000 Subject: [PATCH 166/277] fix jiffy calculations in calibrate_delay_direct to handle overflow Fixes a hang when booting as dom0 under Xen, when jiffies can be quite large by the time the kernel init gets this far. Signed-off-by: Tim Deegan [jbeulich@novell.com: !time_after() -> time_before_eq() as suggested by Jiri Slaby] Signed-off-by: Jan Beulich Cc: Jiri Slaby Cc: Jeremy Fitzhardinge Cc: stable@kernel.org Signed-off-by: Linus Torvalds --- init/calibrate.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/init/calibrate.c b/init/calibrate.c index 6eb48e53d61c..24fe022c55f9 100644 --- a/init/calibrate.c +++ b/init/calibrate.c @@ -66,7 +66,7 @@ static unsigned long __cpuinit calibrate_delay_direct(void) pre_start = 0; read_current_timer(&start); start_jiffies = jiffies; - while (jiffies <= (start_jiffies + 1)) { + while (time_before_eq(jiffies, start_jiffies + 1)) { pre_start = start; read_current_timer(&start); } @@ -74,8 +74,8 @@ static unsigned long __cpuinit calibrate_delay_direct(void) pre_end = 0; end = post_start; - while (jiffies <= - (start_jiffies + 1 + DELAY_CALIBRATION_TICKS)) { + while (time_before_eq(jiffies, start_jiffies + 1 + + DELAY_CALIBRATION_TICKS)) { pre_end = end; read_current_timer(&end); } From 3e9d08ec0a68f6faf718d5a7e050fe5ca0ba004f Mon Sep 17 00:00:00 2001 From: Bruce Rogers Date: Thu, 10 Feb 2011 11:03:31 -0800 Subject: [PATCH 167/277] virtio_net: Add schedule check to napi_enable call Under harsh testing conditions, including low memory, the guest would stop receiving packets. With this patch applied we no longer see any problems in the driver while performing these tests for extended periods of time. Make sure napi is scheduled subsequent to each napi_enable. Signed-off-by: Bruce Rogers Signed-off-by: Olaf Kirch Cc: stable@kernel.org Signed-off-by: Rusty Russell Signed-off-by: David S. Miller --- drivers/net/virtio_net.c | 27 ++++++++++++++++----------- 1 file changed, 16 insertions(+), 11 deletions(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 90a23e410d1b..82dba5aaf423 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -446,6 +446,20 @@ static void skb_recv_done(struct virtqueue *rvq) } } +static void virtnet_napi_enable(struct virtnet_info *vi) +{ + napi_enable(&vi->napi); + + /* If all buffers were filled by other side before we napi_enabled, we + * won't get another interrupt, so process any outstanding packets + * now. virtnet_poll wants re-enable the queue, so we disable here. + * We synchronize against interrupts via NAPI_STATE_SCHED */ + if (napi_schedule_prep(&vi->napi)) { + virtqueue_disable_cb(vi->rvq); + __napi_schedule(&vi->napi); + } +} + static void refill_work(struct work_struct *work) { struct virtnet_info *vi; @@ -454,7 +468,7 @@ static void refill_work(struct work_struct *work) vi = container_of(work, struct virtnet_info, refill.work); napi_disable(&vi->napi); still_empty = !try_fill_recv(vi, GFP_KERNEL); - napi_enable(&vi->napi); + virtnet_napi_enable(vi); /* In theory, this can happen: if we don't get any buffers in * we will *never* try to fill again. */ @@ -638,16 +652,7 @@ static int virtnet_open(struct net_device *dev) { struct virtnet_info *vi = netdev_priv(dev); - napi_enable(&vi->napi); - - /* If all buffers were filled by other side before we napi_enabled, we - * won't get another interrupt, so process any outstanding packets - * now. virtnet_poll wants re-enable the queue, so we disable here. - * We synchronize against interrupts via NAPI_STATE_SCHED */ - if (napi_schedule_prep(&vi->napi)) { - virtqueue_disable_cb(vi->rvq); - __napi_schedule(&vi->napi); - } + virtnet_napi_enable(vi); return 0; } From 3de04984c62559b7d59ecb3ad010fd148f90f030 Mon Sep 17 00:00:00 2001 From: Thomas Abraham Date: Tue, 25 Jan 2011 08:37:49 +0900 Subject: [PATCH 168/277] ARM: S5PV310: Add support System MMU on SMDKV310 The 's5pv310_device_sysmmu' is used on SMDKV310. But since it is not compiled now, there is a build error. To fix this compilation error, S5PV310_DEV_SYSMMU needs to be selected for SMDKV310 board. This patch enables System MMU support on SMDKV310. Signed-off-by: Thomas Abraham [kgene.kim@samsung.com: Adding description] Signed-off-by: Kukjin Kim --- arch/arm/mach-s5pv310/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-s5pv310/Kconfig b/arch/arm/mach-s5pv310/Kconfig index 09c4c21b70cc..b2a9acc5185f 100644 --- a/arch/arm/mach-s5pv310/Kconfig +++ b/arch/arm/mach-s5pv310/Kconfig @@ -122,6 +122,7 @@ config MACH_SMDKV310 select S3C_DEV_HSMMC2 select S3C_DEV_HSMMC3 select S5PV310_DEV_PD + select S5PV310_DEV_SYSMMU select S5PV310_SETUP_I2C1 select S5PV310_SETUP_SDHCI help From 401945212b8a5c3a66218771745e6cfca16e5157 Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Tue, 1 Feb 2011 15:08:53 +0900 Subject: [PATCH 169/277] ARM: S5PV310: Cleanup System MMU This patch cleans following up. - Moved definition of System MMU IPNUM into mach/sysmmu.h - Removed useless SYSMMU_DEBUG configuration - Removed useless header file plat/sysmmu.h Signed-off-by: Kukjin Kim --- arch/arm/mach-s5pv310/include/mach/map.h | 2 -- arch/arm/mach-s5pv310/include/mach/sysmmu.h | 5 ++++- arch/arm/plat-s5p/Kconfig | 24 +++++++-------------- arch/arm/plat-s5p/Makefile | 2 +- arch/arm/plat-s5p/include/plat/sysmmu.h | 23 -------------------- arch/arm/plat-s5p/sysmmu.c | 4 +--- 6 files changed, 14 insertions(+), 46 deletions(-) delete mode 100644 arch/arm/plat-s5p/include/plat/sysmmu.h diff --git a/arch/arm/mach-s5pv310/include/mach/map.h b/arch/arm/mach-s5pv310/include/mach/map.h index 74d400625a23..3060f78e12ab 100644 --- a/arch/arm/mach-s5pv310/include/mach/map.h +++ b/arch/arm/mach-s5pv310/include/mach/map.h @@ -124,8 +124,6 @@ #define S5PV310_PA_SYSMMU_TV 0x12E20000 #define S5PV310_PA_SYSMMU_MFC_L 0x13620000 #define S5PV310_PA_SYSMMU_MFC_R 0x13630000 -#define S5PV310_SYSMMU_TOTAL_IPNUM 16 -#define S5P_SYSMMU_TOTAL_IPNUM S5PV310_SYSMMU_TOTAL_IPNUM /* compatibiltiy defines. */ #define S3C_PA_UART S5PV310_PA_UART diff --git a/arch/arm/mach-s5pv310/include/mach/sysmmu.h b/arch/arm/mach-s5pv310/include/mach/sysmmu.h index 662fe85ff4d5..598fc5c9211b 100644 --- a/arch/arm/mach-s5pv310/include/mach/sysmmu.h +++ b/arch/arm/mach-s5pv310/include/mach/sysmmu.h @@ -13,6 +13,9 @@ #ifndef __ASM_ARM_ARCH_SYSMMU_H #define __ASM_ARM_ARCH_SYSMMU_H __FILE__ +#define S5PV310_SYSMMU_TOTAL_IPNUM 16 +#define S5P_SYSMMU_TOTAL_IPNUM S5PV310_SYSMMU_TOTAL_IPNUM + enum s5pv310_sysmmu_ips { SYSMMU_MDMA, SYSMMU_SSS, @@ -32,7 +35,7 @@ enum s5pv310_sysmmu_ips { SYSMMU_MFC_R, }; -static char *sysmmu_ips_name[S5P_SYSMMU_TOTAL_IPNUM] = { +static char *sysmmu_ips_name[S5PV310_SYSMMU_TOTAL_IPNUM] = { "SYSMMU_MDMA" , "SYSMMU_SSS" , "SYSMMU_FIMC0" , diff --git a/arch/arm/plat-s5p/Kconfig b/arch/arm/plat-s5p/Kconfig index deb39951a22e..557f8c507f6d 100644 --- a/arch/arm/plat-s5p/Kconfig +++ b/arch/arm/plat-s5p/Kconfig @@ -37,6 +37,14 @@ config S5P_GPIO_INT help Common code for the GPIO interrupts (other than external interrupts.) +comment "System MMU" + +config S5P_SYSTEM_MMU + bool "S5P SYSTEM MMU" + depends on ARCH_S5PV310 + help + Say Y here if you want to enable System MMU + config S5P_DEV_FIMC0 bool help @@ -66,19 +74,3 @@ config S5P_DEV_CSIS1 bool help Compile in platform device definitions for MIPI-CSIS channel 1 - -menuconfig S5P_SYSMMU - bool "SYSMMU support" - depends on ARCH_S5PV310 - help - This is a System MMU driver for Samsung ARM based Soc. - -if S5P_SYSMMU - -config S5P_SYSMMU_DEBUG - bool "Enables debug messages" - depends on S5P_SYSMMU - help - This enables SYSMMU driver debug massages. - -endif diff --git a/arch/arm/plat-s5p/Makefile b/arch/arm/plat-s5p/Makefile index 92efe1adcfd6..4bd5cf908977 100644 --- a/arch/arm/plat-s5p/Makefile +++ b/arch/arm/plat-s5p/Makefile @@ -19,6 +19,7 @@ obj-y += clock.o obj-y += irq.o obj-$(CONFIG_S5P_EXT_INT) += irq-eint.o obj-$(CONFIG_S5P_GPIO_INT) += irq-gpioint.o +obj-$(CONFIG_S5P_SYSTEM_MMU) += sysmmu.o obj-$(CONFIG_PM) += pm.o obj-$(CONFIG_PM) += irq-pm.o @@ -30,4 +31,3 @@ obj-$(CONFIG_S5P_DEV_FIMC2) += dev-fimc2.o obj-$(CONFIG_S5P_DEV_ONENAND) += dev-onenand.o obj-$(CONFIG_S5P_DEV_CSIS0) += dev-csis0.o obj-$(CONFIG_S5P_DEV_CSIS1) += dev-csis1.o -obj-$(CONFIG_S5P_SYSMMU) += sysmmu.o diff --git a/arch/arm/plat-s5p/include/plat/sysmmu.h b/arch/arm/plat-s5p/include/plat/sysmmu.h deleted file mode 100644 index db298fc5438a..000000000000 --- a/arch/arm/plat-s5p/include/plat/sysmmu.h +++ /dev/null @@ -1,23 +0,0 @@ -/* linux/arch/arm/plat-s5p/include/plat/sysmmu.h - * - * Copyright (c) 2010 Samsung Electronics Co., Ltd. - * http://www.samsung.com/ - * - * Samsung sysmmu driver - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#ifndef __ASM_PLAT_S5P_SYSMMU_H -#define __ASM_PLAT_S5P_SYSMMU_H __FILE__ - -/* debug macro */ -#ifdef CONFIG_S5P_SYSMMU_DEBUG -#define sysmmu_debug(fmt, arg...) printk(KERN_INFO "[%s] " fmt, __func__, ## arg) -#else -#define sysmmu_debug(fmt, arg...) do { } while (0) -#endif - -#endif /* __ASM_PLAT_S5P_SYSMMU_H */ diff --git a/arch/arm/plat-s5p/sysmmu.c b/arch/arm/plat-s5p/sysmmu.c index d804914dc2e2..ffe8a48bc3c1 100644 --- a/arch/arm/plat-s5p/sysmmu.c +++ b/arch/arm/plat-s5p/sysmmu.c @@ -16,8 +16,6 @@ #include #include -#include - struct sysmmu_controller s5p_sysmmu_cntlrs[S5P_SYSMMU_TOTAL_IPNUM]; void s5p_sysmmu_register(struct sysmmu_controller *sysmmuconp) @@ -123,7 +121,7 @@ static int s5p_sysmmu_set_tablebase(sysmmu_ips ips) : "=r" (pg) : : "cc"); \ pg &= ~0x3fff; - sysmmu_debug("CP15 TTBR0 : 0x%x\n", pg); + printk(KERN_INFO "%s: CP15 TTBR0 : 0x%x\n", __func__, pg); /* Set sysmmu page table base address */ __raw_writel(pg, sysmmuconp->regs + S5P_PT_BASE_ADDR); From a09e2b21cab92e98728c16f0e6f456f723dadf8b Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 7 Feb 2011 10:51:04 +0900 Subject: [PATCH 170/277] ARM: SAMSUNG: Ensure struct sys_device is declared in plat/pm.h Previously we were relying on it being pulled in by other headers for the prototype of s3c24xx_irq_suspend() and s3c24xx_irq_resume(). Signed-off-by: Mark Brown Signed-off-by: Kukjin Kim --- arch/arm/plat-samsung/include/plat/pm.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/plat-samsung/include/plat/pm.h b/arch/arm/plat-samsung/include/plat/pm.h index d9025e377675..30518cc9a67c 100644 --- a/arch/arm/plat-samsung/include/plat/pm.h +++ b/arch/arm/plat-samsung/include/plat/pm.h @@ -17,6 +17,8 @@ #include +struct sys_device; + #ifdef CONFIG_PM extern __init int s3c_pm_init(void); From ee24aebffb75a7f940cf52c8cf6910947b3130c0 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Thu, 10 Feb 2011 17:53:55 -0800 Subject: [PATCH 171/277] cap_syslog: accept CAP_SYS_ADMIN for now In commit ce6ada35bdf7 ("security: Define CAP_SYSLOG") Serge Hallyn introduced CAP_SYSLOG, but broke backwards compatibility by no longer accepting CAP_SYS_ADMIN as an override (it would cause a warning and then reject the operation). Re-instate CAP_SYS_ADMIN - but keeping the warning - as an acceptable capability until any legacy applications have been updated. There are apparently applications out there that drop all capabilities except for CAP_SYS_ADMIN in order to access the syslog. (This is a re-implementation of a patch by Serge, cleaning the logic up and making the code more readable) Acked-by: Serge Hallyn Reviewed-by: James Morris Signed-off-by: Linus Torvalds --- kernel/printk.c | 54 ++++++++++++++++++++++++++++++++----------------- 1 file changed, 35 insertions(+), 19 deletions(-) diff --git a/kernel/printk.c b/kernel/printk.c index 2ddbdc73aade..36231525e22f 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -262,25 +262,47 @@ int dmesg_restrict = 1; int dmesg_restrict; #endif +static int syslog_action_restricted(int type) +{ + if (dmesg_restrict) + return 1; + /* Unless restricted, we allow "read all" and "get buffer size" for everybody */ + return type != SYSLOG_ACTION_READ_ALL && type != SYSLOG_ACTION_SIZE_BUFFER; +} + +static int check_syslog_permissions(int type, bool from_file) +{ + /* + * If this is from /proc/kmsg and we've already opened it, then we've + * already done the capabilities checks at open time. + */ + if (from_file && type != SYSLOG_ACTION_OPEN) + return 0; + + if (syslog_action_restricted(type)) { + if (capable(CAP_SYSLOG)) + return 0; + /* For historical reasons, accept CAP_SYS_ADMIN too, with a warning */ + if (capable(CAP_SYS_ADMIN)) { + WARN_ONCE(1, "Attempt to access syslog with CAP_SYS_ADMIN " + "but no CAP_SYSLOG (deprecated).\n"); + return 0; + } + return -EPERM; + } + return 0; +} + int do_syslog(int type, char __user *buf, int len, bool from_file) { unsigned i, j, limit, count; int do_clear = 0; char c; - int error = 0; + int error; - /* - * If this is from /proc/kmsg we only do the capabilities checks - * at open time. - */ - if (type == SYSLOG_ACTION_OPEN || !from_file) { - if (dmesg_restrict && !capable(CAP_SYSLOG)) - goto warn; /* switch to return -EPERM after 2.6.39 */ - if ((type != SYSLOG_ACTION_READ_ALL && - type != SYSLOG_ACTION_SIZE_BUFFER) && - !capable(CAP_SYSLOG)) - goto warn; /* switch to return -EPERM after 2.6.39 */ - } + error = check_syslog_permissions(type, from_file); + if (error) + goto out; error = security_syslog(type); if (error) @@ -423,12 +445,6 @@ int do_syslog(int type, char __user *buf, int len, bool from_file) } out: return error; -warn: - /* remove after 2.6.39 */ - if (capable(CAP_SYS_ADMIN)) - WARN_ONCE(1, "Attempt to access syslog with CAP_SYS_ADMIN " - "but no CAP_SYSLOG (deprecated and denied).\n"); - return -EPERM; } SYSCALL_DEFINE3(syslog, int, type, char __user *, buf, int, len) From d2478521afc20227658a10a8c5c2bf1a2aa615b3 Mon Sep 17 00:00:00 2001 From: Corey Minyard Date: Thu, 10 Feb 2011 16:08:38 -0600 Subject: [PATCH 172/277] char/ipmi: fix OOPS caused by pnp_unregister_driver on unregistered driver This patch fixes an OOPS triggered when calling modprobe ipmi_si a second time after the first modprobe returned without finding any ipmi devices. This can happen if you reload the module after having the first module load fail. The driver was not deregistering from PNP in that case. Peter Huewe originally reported this patch and supplied a fix, I have a different patch based on Linus' suggestion that cleans things up a bit more. Cc: stable@kernel.org Cc: openipmi-developer@lists.sourceforge.net Reviewed-by: Peter Huewe Cc: Randy Dunlap Signed-off-by: Corey Minyard Signed-off-by: Linus Torvalds --- drivers/char/ipmi/ipmi_si_intf.c | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-) diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index b6ae6e9a9c5f..7855f9f45b8e 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -320,6 +320,7 @@ static int unload_when_empty = 1; static int add_smi(struct smi_info *smi); static int try_smi_init(struct smi_info *smi); static void cleanup_one_si(struct smi_info *to_clean); +static void cleanup_ipmi_si(void); static ATOMIC_NOTIFIER_HEAD(xaction_notifier_list); static int register_xaction_notifier(struct notifier_block *nb) @@ -3450,16 +3451,7 @@ static int __devinit init_ipmi_si(void) mutex_lock(&smi_infos_lock); if (unload_when_empty && list_empty(&smi_infos)) { mutex_unlock(&smi_infos_lock); -#ifdef CONFIG_PCI - if (pci_registered) - pci_unregister_driver(&ipmi_pci_driver); -#endif - -#ifdef CONFIG_PPC_OF - if (of_registered) - of_unregister_platform_driver(&ipmi_of_platform_driver); -#endif - driver_unregister(&ipmi_driver.driver); + cleanup_ipmi_si(); printk(KERN_WARNING PFX "Unable to find any System Interface(s)\n"); return -ENODEV; From 9b29050f8f75916f974a2d231ae5d3cd59792296 Mon Sep 17 00:00:00 2001 From: Stefan Berger Date: Tue, 11 Jan 2011 14:37:29 -0500 Subject: [PATCH 173/277] tpm_tis: Use timeouts returned from TPM The current TPM TIS driver in git discards the timeout values returned from the TPM. The check of the response packet needs to consider that the return_code field is 0 on success and the size of the expected packet is equivalent to the header size + u32 length indicator for the TPM_GetCapability() result + 3 timeout indicators of type u32. I am also adding a sysfs entry 'timeouts' showing the timeouts that are being used. Signed-off-by: Stefan Berger Tested-by: Guillaume Chazarain Signed-off-by: Rajiv Andrade --- drivers/char/tpm/tpm.c | 18 ++++++++++++++++-- drivers/char/tpm/tpm.h | 2 ++ drivers/char/tpm/tpm_tis.c | 4 +++- 3 files changed, 21 insertions(+), 3 deletions(-) diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c index 36e0fa161c2b..faf5a2c65926 100644 --- a/drivers/char/tpm/tpm.c +++ b/drivers/char/tpm/tpm.c @@ -577,9 +577,11 @@ duration: if (rc) return; - if (be32_to_cpu(tpm_cmd.header.out.return_code) - != 3 * sizeof(u32)) + if (be32_to_cpu(tpm_cmd.header.out.return_code) != 0 || + be32_to_cpu(tpm_cmd.header.out.length) + != sizeof(tpm_cmd.header.out) + sizeof(u32) + 3 * sizeof(u32)) return; + duration_cap = &tpm_cmd.params.getcap_out.cap.duration; chip->vendor.duration[TPM_SHORT] = usecs_to_jiffies(be32_to_cpu(duration_cap->tpm_short)); @@ -939,6 +941,18 @@ ssize_t tpm_show_caps_1_2(struct device * dev, } EXPORT_SYMBOL_GPL(tpm_show_caps_1_2); +ssize_t tpm_show_timeouts(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct tpm_chip *chip = dev_get_drvdata(dev); + + return sprintf(buf, "%d %d %d\n", + jiffies_to_usecs(chip->vendor.duration[TPM_SHORT]), + jiffies_to_usecs(chip->vendor.duration[TPM_MEDIUM]), + jiffies_to_usecs(chip->vendor.duration[TPM_LONG])); +} +EXPORT_SYMBOL_GPL(tpm_show_timeouts); + ssize_t tpm_store_cancel(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h index 72ddb031b69a..d84ff772c26f 100644 --- a/drivers/char/tpm/tpm.h +++ b/drivers/char/tpm/tpm.h @@ -56,6 +56,8 @@ extern ssize_t tpm_show_owned(struct device *, struct device_attribute *attr, char *); extern ssize_t tpm_show_temp_deactivated(struct device *, struct device_attribute *attr, char *); +extern ssize_t tpm_show_timeouts(struct device *, + struct device_attribute *attr, char *); struct tpm_chip; diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c index dd21df55689d..0d1d38e5f266 100644 --- a/drivers/char/tpm/tpm_tis.c +++ b/drivers/char/tpm/tpm_tis.c @@ -376,6 +376,7 @@ static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated, NULL); static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps_1_2, NULL); static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel); +static DEVICE_ATTR(timeouts, S_IRUGO, tpm_show_timeouts, NULL); static struct attribute *tis_attrs[] = { &dev_attr_pubek.attr, @@ -385,7 +386,8 @@ static struct attribute *tis_attrs[] = { &dev_attr_owned.attr, &dev_attr_temp_deactivated.attr, &dev_attr_caps.attr, - &dev_attr_cancel.attr, NULL, + &dev_attr_cancel.attr, + &dev_attr_timeouts.attr, NULL, }; static struct attribute_group tis_attr_grp = { From 71823baff1978be892e7a36eddf6170e1cc6650d Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Thu, 10 Feb 2011 08:03:50 -0500 Subject: [PATCH 174/277] cifs: don't always drop malformed replies on the floor (try #3) Slight revision to this patch...use min_t() instead of conditional assignment. Also, remove the FIXME comment and replace it with the explanation that Steve gave earlier. After receiving a packet, we currently check the header. If it's no good, then we toss it out and continue the loop, leaving the caller waiting on that response. In cases where the packet has length inconsistencies, but the MID is valid, this leads to unneeded delays. That's especially problematic now that the client waits indefinitely for responses. Instead, don't immediately discard the packet if checkSMB fails. Try to find a matching mid_q_entry, mark it as having a malformed response and issue the callback. Signed-off-by: Jeff Layton Signed-off-by: Steve French --- fs/cifs/cifsglob.h | 2 +- fs/cifs/connect.c | 30 ++++++++++++++++++++++++------ fs/cifs/transport.c | 3 +++ 3 files changed, 28 insertions(+), 7 deletions(-) diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 1ab33eb71d95..17afb0fbcaed 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -654,7 +654,7 @@ static inline void free_dfs_info_array(struct dfs_info3_param *param, #define MID_REQUEST_SUBMITTED 2 #define MID_RESPONSE_RECEIVED 4 #define MID_RETRY_NEEDED 8 /* session closed while this request out */ -#define MID_NO_RESP_NEEDED 0x10 +#define MID_RESPONSE_MALFORMED 0x10 /* Types of response buffer returned from SendReceive2 */ #define CIFS_NO_BUFFER 0 /* Response buffer not returned */ diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 161f24ca4f6e..8d6c17ab593d 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -586,11 +586,20 @@ incomplete_rcv: total_read += 4; /* account for rfc1002 hdr */ dump_smb(smb_buffer, total_read); - if (checkSMB(smb_buffer, smb_buffer->Mid, total_read)) { + + /* + * We know that we received enough to get to the MID as we + * checked the pdu_length earlier. Now check to see + * if the rest of the header is OK. We borrow the length + * var for the rest of the loop to avoid a new stack var. + * + * 48 bytes is enough to display the header and a little bit + * into the payload for debugging purposes. + */ + length = checkSMB(smb_buffer, smb_buffer->Mid, total_read); + if (length != 0) cifs_dump_mem("Bad SMB: ", smb_buffer, - total_read < 48 ? total_read : 48); - continue; - } + min_t(unsigned int, total_read, 48)); mid_entry = NULL; server->lstrp = jiffies; @@ -602,7 +611,8 @@ incomplete_rcv: if ((mid_entry->mid == smb_buffer->Mid) && (mid_entry->midState == MID_REQUEST_SUBMITTED) && (mid_entry->command == smb_buffer->Command)) { - if (check2ndT2(smb_buffer,server->maxBuf) > 0) { + if (length == 0 && + check2ndT2(smb_buffer, server->maxBuf) > 0) { /* We have a multipart transact2 resp */ isMultiRsp = true; if (mid_entry->resp_buf) { @@ -637,7 +647,12 @@ incomplete_rcv: mid_entry->resp_buf = smb_buffer; mid_entry->largeBuf = isLargeBuf; multi_t2_fnd: - mid_entry->midState = MID_RESPONSE_RECEIVED; + if (length == 0) + mid_entry->midState = + MID_RESPONSE_RECEIVED; + else + mid_entry->midState = + MID_RESPONSE_MALFORMED; #ifdef CONFIG_CIFS_STATS2 mid_entry->when_received = jiffies; #endif @@ -658,6 +673,9 @@ multi_t2_fnd: else smallbuf = NULL; } + } else if (length != 0) { + /* response sanity checks failed */ + continue; } else if (!is_valid_oplock_break(smb_buffer, server) && !isMultiRsp) { cERROR(1, "No task to wake, unknown frame received! " diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index fbc5aace54b1..46d8756f2b24 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -457,6 +457,9 @@ sync_mid_result(struct mid_q_entry *mid, struct TCP_Server_Info *server) case MID_RETRY_NEEDED: rc = -EAGAIN; break; + case MID_RESPONSE_MALFORMED: + rc = -EIO; + break; default: cERROR(1, "%s: invalid mid state mid=%d state=%d", __func__, mid->mid, mid->midState); From 8209e054b6bd0805a25b8c4af971160fa146bf22 Mon Sep 17 00:00:00 2001 From: Thomas Renninger Date: Fri, 21 Jan 2011 15:11:19 +0100 Subject: [PATCH 175/277] tools: turbostat: fix bitwise and operand bug could cause false positive on indicating presence of invarient TSC or APERF support. Signed-off-by: Thomas Renninger Signed-off-by: Len Brown --- tools/power/x86/turbostat/turbostat.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index 4c6983de6fd9..a96248f19264 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -892,7 +892,7 @@ void check_cpuid() * this check is valid for both Intel and AMD */ asm("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x80000007)); - has_invariant_tsc = edx && (1 << 8); + has_invariant_tsc = edx & (1 << 8); if (!has_invariant_tsc) { fprintf(stderr, "No invariant TSC\n"); @@ -905,7 +905,7 @@ void check_cpuid() */ asm("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x6)); - has_aperf = ecx && (1 << 0); + has_aperf = ecx & (1 << 0); if (!has_aperf) { fprintf(stderr, "No APERF MSR\n"); exit(1); From a829eb4d7e08b316e2d48880ecab3630497f300f Mon Sep 17 00:00:00 2001 From: Len Brown Date: Thu, 10 Feb 2011 23:36:34 -0500 Subject: [PATCH 176/277] tools: turbostat: style updates Follow kernel coding style traditions more closely. Delete typedef, re-name "per cpu counters" to simply be counters etc. This patch changes no functionality. Suggested-by: Thiago Farina Signed-off-by: Len Brown --- tools/power/x86/turbostat/turbostat.c | 196 +++++++++++++------------- 1 file changed, 96 insertions(+), 100 deletions(-) diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index a96248f19264..362a0cb448db 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -72,7 +72,7 @@ int need_reinitialize; int num_cpus; -typedef struct per_cpu_counters { +struct counters { unsigned long long tsc; /* per thread */ unsigned long long aperf; /* per thread */ unsigned long long mperf; /* per thread */ @@ -88,13 +88,13 @@ typedef struct per_cpu_counters { int pkg; int core; int cpu; - struct per_cpu_counters *next; -} PCC; + struct counters *next; +}; -PCC *pcc_even; -PCC *pcc_odd; -PCC *pcc_delta; -PCC *pcc_average; +struct counters *cnt_even; +struct counters *cnt_odd; +struct counters *cnt_delta; +struct counters *cnt_average; struct timeval tv_even; struct timeval tv_odd; struct timeval tv_delta; @@ -125,7 +125,7 @@ unsigned long long get_msr(int cpu, off_t offset) return msr; } -void print_header() +void print_header(void) { if (show_pkg) fprintf(stderr, "pkg "); @@ -160,39 +160,39 @@ void print_header() putc('\n', stderr); } -void dump_pcc(PCC *pcc) +void dump_cnt(struct counters *cnt) { - fprintf(stderr, "package: %d ", pcc->pkg); - fprintf(stderr, "core:: %d ", pcc->core); - fprintf(stderr, "CPU: %d ", pcc->cpu); - fprintf(stderr, "TSC: %016llX\n", pcc->tsc); - fprintf(stderr, "c3: %016llX\n", pcc->c3); - fprintf(stderr, "c6: %016llX\n", pcc->c6); - fprintf(stderr, "c7: %016llX\n", pcc->c7); - fprintf(stderr, "aperf: %016llX\n", pcc->aperf); - fprintf(stderr, "pc2: %016llX\n", pcc->pc2); - fprintf(stderr, "pc3: %016llX\n", pcc->pc3); - fprintf(stderr, "pc6: %016llX\n", pcc->pc6); - fprintf(stderr, "pc7: %016llX\n", pcc->pc7); - fprintf(stderr, "msr0x%x: %016llX\n", extra_msr_offset, pcc->extra_msr); + fprintf(stderr, "package: %d ", cnt->pkg); + fprintf(stderr, "core:: %d ", cnt->core); + fprintf(stderr, "CPU: %d ", cnt->cpu); + fprintf(stderr, "TSC: %016llX\n", cnt->tsc); + fprintf(stderr, "c3: %016llX\n", cnt->c3); + fprintf(stderr, "c6: %016llX\n", cnt->c6); + fprintf(stderr, "c7: %016llX\n", cnt->c7); + fprintf(stderr, "aperf: %016llX\n", cnt->aperf); + fprintf(stderr, "pc2: %016llX\n", cnt->pc2); + fprintf(stderr, "pc3: %016llX\n", cnt->pc3); + fprintf(stderr, "pc6: %016llX\n", cnt->pc6); + fprintf(stderr, "pc7: %016llX\n", cnt->pc7); + fprintf(stderr, "msr0x%x: %016llX\n", extra_msr_offset, cnt->extra_msr); } -void dump_list(PCC *pcc) +void dump_list(struct counters *cnt) { - printf("dump_list 0x%p\n", pcc); + printf("dump_list 0x%p\n", cnt); - for (; pcc; pcc = pcc->next) - dump_pcc(pcc); + for (; cnt; cnt = cnt->next) + dump_cnt(cnt); } -void print_pcc(PCC *p) +void print_cnt(struct counters *p) { double interval_float; interval_float = tv_delta.tv_sec + tv_delta.tv_usec/1000000.0; /* topology columns, print blanks on 1st (average) line */ - if (p == pcc_average) { + if (p == cnt_average) { if (show_pkg) fprintf(stderr, " "); if (show_core) @@ -262,24 +262,24 @@ void print_pcc(PCC *p) putc('\n', stderr); } -void print_counters(PCC *cnt) +void print_counters(struct counters *counters) { - PCC *pcc; + struct counters *cnt; print_header(); if (num_cpus > 1) - print_pcc(pcc_average); + print_cnt(cnt_average); - for (pcc = cnt; pcc != NULL; pcc = pcc->next) - print_pcc(pcc); + for (cnt = counters; cnt != NULL; cnt = cnt->next) + print_cnt(cnt); } #define SUBTRACT_COUNTER(after, before, delta) (delta = (after - before), (before > after)) - -int compute_delta(PCC *after, PCC *before, PCC *delta) +int compute_delta(struct counters *after, + struct counters *before, struct counters *delta) { int errors = 0; int perf_err = 0; @@ -391,20 +391,20 @@ int compute_delta(PCC *after, PCC *before, PCC *delta) delta->extra_msr = after->extra_msr; if (errors) { fprintf(stderr, "ERROR cpu%d before:\n", before->cpu); - dump_pcc(before); + dump_cnt(before); fprintf(stderr, "ERROR cpu%d after:\n", before->cpu); - dump_pcc(after); + dump_cnt(after); errors = 0; } } return 0; } -void compute_average(PCC *delta, PCC *avg) +void compute_average(struct counters *delta, struct counters *avg) { - PCC *sum; + struct counters *sum; - sum = calloc(1, sizeof(PCC)); + sum = calloc(1, sizeof(struct counters)); if (sum == NULL) { perror("calloc sum"); exit(1); @@ -438,35 +438,34 @@ void compute_average(PCC *delta, PCC *avg) free(sum); } -void get_counters(PCC *pcc) +void get_counters(struct counters *cnt) { - for ( ; pcc; pcc = pcc->next) { - pcc->tsc = get_msr(pcc->cpu, MSR_TSC); + for ( ; cnt; cnt = cnt->next) { + cnt->tsc = get_msr(cnt->cpu, MSR_TSC); if (do_nhm_cstates) - pcc->c3 = get_msr(pcc->cpu, MSR_CORE_C3_RESIDENCY); + cnt->c3 = get_msr(cnt->cpu, MSR_CORE_C3_RESIDENCY); if (do_nhm_cstates) - pcc->c6 = get_msr(pcc->cpu, MSR_CORE_C6_RESIDENCY); + cnt->c6 = get_msr(cnt->cpu, MSR_CORE_C6_RESIDENCY); if (do_snb_cstates) - pcc->c7 = get_msr(pcc->cpu, MSR_CORE_C7_RESIDENCY); + cnt->c7 = get_msr(cnt->cpu, MSR_CORE_C7_RESIDENCY); if (has_aperf) - pcc->aperf = get_msr(pcc->cpu, MSR_APERF); + cnt->aperf = get_msr(cnt->cpu, MSR_APERF); if (has_aperf) - pcc->mperf = get_msr(pcc->cpu, MSR_MPERF); + cnt->mperf = get_msr(cnt->cpu, MSR_MPERF); if (do_snb_cstates) - pcc->pc2 = get_msr(pcc->cpu, MSR_PKG_C2_RESIDENCY); + cnt->pc2 = get_msr(cnt->cpu, MSR_PKG_C2_RESIDENCY); if (do_nhm_cstates) - pcc->pc3 = get_msr(pcc->cpu, MSR_PKG_C3_RESIDENCY); + cnt->pc3 = get_msr(cnt->cpu, MSR_PKG_C3_RESIDENCY); if (do_nhm_cstates) - pcc->pc6 = get_msr(pcc->cpu, MSR_PKG_C6_RESIDENCY); + cnt->pc6 = get_msr(cnt->cpu, MSR_PKG_C6_RESIDENCY); if (do_snb_cstates) - pcc->pc7 = get_msr(pcc->cpu, MSR_PKG_C7_RESIDENCY); + cnt->pc7 = get_msr(cnt->cpu, MSR_PKG_C7_RESIDENCY); if (extra_msr_offset) - pcc->extra_msr = get_msr(pcc->cpu, extra_msr_offset); + cnt->extra_msr = get_msr(cnt->cpu, extra_msr_offset); } } - -void print_nehalem_info() +void print_nehalem_info(void) { unsigned long long msr; unsigned int ratio; @@ -514,38 +513,38 @@ void print_nehalem_info() } -void free_counter_list(PCC *list) +void free_counter_list(struct counters *list) { - PCC *p; + struct counters *p; for (p = list; p; ) { - PCC *free_me; + struct counters *free_me; free_me = p; p = p->next; free(free_me); } - return; } void free_all_counters(void) { - free_counter_list(pcc_even); - pcc_even = NULL; + free_counter_list(cnt_even); + cnt_even = NULL; - free_counter_list(pcc_odd); - pcc_odd = NULL; + free_counter_list(cnt_odd); + cnt_odd = NULL; - free_counter_list(pcc_delta); - pcc_delta = NULL; + free_counter_list(cnt_delta); + cnt_delta = NULL; - free_counter_list(pcc_average); - pcc_average = NULL; + free_counter_list(cnt_average); + cnt_average = NULL; } -void insert_cpu_counters(PCC **list, PCC *new) +void insert_counters(struct counters **list, + struct counters *new) { - PCC *prev; + struct counters *prev; /* * list was empty @@ -594,18 +593,16 @@ void insert_cpu_counters(PCC **list, PCC *new) */ new->next = prev->next; prev->next = new; - - return; } -void alloc_new_cpu_counters(int pkg, int core, int cpu) +void alloc_new_counters(int pkg, int core, int cpu) { - PCC *new; + struct counters *new; if (verbose > 1) printf("pkg%d core%d, cpu%d\n", pkg, core, cpu); - new = (PCC *)calloc(1, sizeof(PCC)); + new = (struct counters *)calloc(1, sizeof(struct counters)); if (new == NULL) { perror("calloc"); exit(1); @@ -613,9 +610,10 @@ void alloc_new_cpu_counters(int pkg, int core, int cpu) new->pkg = pkg; new->core = core; new->cpu = cpu; - insert_cpu_counters(&pcc_odd, new); + insert_counters(&cnt_odd, new); - new = (PCC *)calloc(1, sizeof(PCC)); + new = (struct counters *)calloc(1, + sizeof(struct counters)); if (new == NULL) { perror("calloc"); exit(1); @@ -623,9 +621,9 @@ void alloc_new_cpu_counters(int pkg, int core, int cpu) new->pkg = pkg; new->core = core; new->cpu = cpu; - insert_cpu_counters(&pcc_even, new); + insert_counters(&cnt_even, new); - new = (PCC *)calloc(1, sizeof(PCC)); + new = (struct counters *)calloc(1, sizeof(struct counters)); if (new == NULL) { perror("calloc"); exit(1); @@ -633,9 +631,9 @@ void alloc_new_cpu_counters(int pkg, int core, int cpu) new->pkg = pkg; new->core = core; new->cpu = cpu; - insert_cpu_counters(&pcc_delta, new); + insert_counters(&cnt_delta, new); - new = (PCC *)calloc(1, sizeof(PCC)); + new = (struct counters *)calloc(1, sizeof(struct counters)); if (new == NULL) { perror("calloc"); exit(1); @@ -643,7 +641,7 @@ void alloc_new_cpu_counters(int pkg, int core, int cpu) new->pkg = pkg; new->core = core; new->cpu = cpu; - pcc_average = new; + cnt_average = new; } int get_physical_package_id(int cpu) @@ -719,7 +717,7 @@ void re_initialize(void) { printf("turbostat: topology changed, re-initializing.\n"); free_all_counters(); - num_cpus = for_all_cpus(alloc_new_cpu_counters); + num_cpus = for_all_cpus(alloc_new_counters); need_reinitialize = 0; printf("num_cpus is now %d\n", num_cpus); } @@ -728,7 +726,7 @@ void dummy(int pkg, int core, int cpu) { return; } /* * check to see if a cpu came on-line */ -void verify_num_cpus() +void verify_num_cpus(void) { int new_num_cpus; @@ -740,14 +738,12 @@ void verify_num_cpus() num_cpus, new_num_cpus); need_reinitialize = 1; } - - return; } void turbostat_loop() { restart: - get_counters(pcc_even); + get_counters(cnt_even); gettimeofday(&tv_even, (struct timezone *)NULL); while (1) { @@ -757,24 +753,24 @@ restart: goto restart; } sleep(interval_sec); - get_counters(pcc_odd); + get_counters(cnt_odd); gettimeofday(&tv_odd, (struct timezone *)NULL); - compute_delta(pcc_odd, pcc_even, pcc_delta); + compute_delta(cnt_odd, cnt_even, cnt_delta); timersub(&tv_odd, &tv_even, &tv_delta); - compute_average(pcc_delta, pcc_average); - print_counters(pcc_delta); + compute_average(cnt_delta, cnt_average); + print_counters(cnt_delta); if (need_reinitialize) { re_initialize(); goto restart; } sleep(interval_sec); - get_counters(pcc_even); + get_counters(cnt_even); gettimeofday(&tv_even, (struct timezone *)NULL); - compute_delta(pcc_even, pcc_odd, pcc_delta); + compute_delta(cnt_even, cnt_odd, cnt_delta); timersub(&tv_even, &tv_odd, &tv_delta); - compute_average(pcc_delta, pcc_average); - print_counters(pcc_delta); + compute_average(cnt_delta, cnt_average); + print_counters(cnt_delta); } } @@ -952,7 +948,7 @@ void turbostat_init() check_dev_msr(); check_super_user(); - num_cpus = for_all_cpus(alloc_new_cpu_counters); + num_cpus = for_all_cpus(alloc_new_counters); if (verbose) print_nehalem_info(); @@ -962,7 +958,7 @@ int fork_it(char **argv) { int retval; pid_t child_pid; - get_counters(pcc_even); + get_counters(cnt_even); gettimeofday(&tv_even, (struct timezone *)NULL); child_pid = fork(); @@ -985,14 +981,14 @@ int fork_it(char **argv) exit(1); } } - get_counters(pcc_odd); + get_counters(cnt_odd); gettimeofday(&tv_odd, (struct timezone *)NULL); - retval = compute_delta(pcc_odd, pcc_even, pcc_delta); + retval = compute_delta(cnt_odd, cnt_even, cnt_delta); timersub(&tv_odd, &tv_even, &tv_delta); - compute_average(pcc_delta, pcc_average); + compute_average(cnt_delta, cnt_average); if (!retval) - print_counters(pcc_delta); + print_counters(cnt_delta); fprintf(stderr, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0);; From 6037b715d6fab139742c3df8851db4c823081561 Mon Sep 17 00:00:00 2001 From: Chris Wright Date: Wed, 9 Feb 2011 22:11:51 -0800 Subject: [PATCH 177/277] security: add cred argument to security_capable() Expand security_capable() to include cred, so that it can be usable in a wider range of call sites. Signed-off-by: Chris Wright Acked-by: Serge Hallyn Signed-off-by: James Morris --- include/linux/security.h | 6 +++--- kernel/capability.c | 2 +- security/security.c | 5 ++--- 3 files changed, 6 insertions(+), 7 deletions(-) diff --git a/include/linux/security.h b/include/linux/security.h index c642bb8b8f5a..b2b7f9749f5e 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -1662,7 +1662,7 @@ int security_capset(struct cred *new, const struct cred *old, const kernel_cap_t *effective, const kernel_cap_t *inheritable, const kernel_cap_t *permitted); -int security_capable(int cap); +int security_capable(const struct cred *cred, int cap); int security_real_capable(struct task_struct *tsk, int cap); int security_real_capable_noaudit(struct task_struct *tsk, int cap); int security_sysctl(struct ctl_table *table, int op); @@ -1856,9 +1856,9 @@ static inline int security_capset(struct cred *new, return cap_capset(new, old, effective, inheritable, permitted); } -static inline int security_capable(int cap) +static inline int security_capable(const struct cred *cred, int cap) { - return cap_capable(current, current_cred(), cap, SECURITY_CAP_AUDIT); + return cap_capable(current, cred, cap, SECURITY_CAP_AUDIT); } static inline int security_real_capable(struct task_struct *tsk, int cap) diff --git a/kernel/capability.c b/kernel/capability.c index 2f05303715a5..9e9385f132c8 100644 --- a/kernel/capability.c +++ b/kernel/capability.c @@ -306,7 +306,7 @@ int capable(int cap) BUG(); } - if (security_capable(cap) == 0) { + if (security_capable(current_cred(), cap) == 0) { current->flags |= PF_SUPERPRIV; return 1; } diff --git a/security/security.c b/security/security.c index 739e40362f44..7b7308ace8c5 100644 --- a/security/security.c +++ b/security/security.c @@ -154,10 +154,9 @@ int security_capset(struct cred *new, const struct cred *old, effective, inheritable, permitted); } -int security_capable(int cap) +int security_capable(const struct cred *cred, int cap) { - return security_ops->capable(current, current_cred(), cap, - SECURITY_CAP_AUDIT); + return security_ops->capable(current, cred, cap, SECURITY_CAP_AUDIT); } int security_real_capable(struct task_struct *tsk, int cap) From 47970b1b2aa64464bc0a9543e86361a622ae7c03 Mon Sep 17 00:00:00 2001 From: Chris Wright Date: Thu, 10 Feb 2011 15:58:56 -0800 Subject: [PATCH 178/277] pci: use security_capable() when checking capablities during config space read Eric Paris noted that commit de139a3 ("pci: check caps from sysfs file open to read device dependent config space") caused the capability check to bypass security modules and potentially auditing. Rectify this by calling security_capable() when checking the open file's capabilities for config space reads. Reported-by: Eric Paris Signed-off-by: Chris Wright Signed-off-by: James Morris --- drivers/pci/pci-sysfs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 8ecaac983923..f7771f336b7d 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include #include "pci.h" @@ -368,7 +369,7 @@ pci_read_config(struct file *filp, struct kobject *kobj, u8 *data = (u8*) buf; /* Several chips lock up trying to read undefined config space */ - if (cap_raised(filp->f_cred->cap_effective, CAP_SYS_ADMIN)) { + if (security_capable(filp->f_cred, CAP_SYS_ADMIN)) { size = dev->cfg_size; } else if (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS) { size = 128; From 965b76d23ea354848dea8d34059d04e150dcd464 Mon Sep 17 00:00:00 2001 From: Anisse Astier Date: Thu, 10 Feb 2011 13:14:44 +0100 Subject: [PATCH 179/277] ALSA: hda - add quirk for Ordissimo EVE using a realtek ALC662 This netbook has a only one jack output and an internal mic. By default, mic and jack sense aren't working. Using lenovo-101e parameters makes both work. The device seems based on a Sharetronic Q70, so this should fix audio for this model too. Signed-off-by: Anisse Astier Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 089a7de2439e..3328a259a242 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -18825,6 +18825,7 @@ static struct snd_pci_quirk alc662_cfg_tbl[] = { ALC662_3ST_6ch_DIG), SND_PCI_QUIRK_MASK(0x1854, 0xf000, 0x2000, "ASUS H13-200x", ALC663_ASUS_H13), + SND_PCI_QUIRK(0x1991, 0x5628, "Ordissimo EVE", ALC662_LENOVO_101E), {} }; From 0fbc9fdb7e747500111dcc4a5f5f3ceed0360d71 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Fri, 4 Feb 2011 00:37:26 -0800 Subject: [PATCH 180/277] Input: ads7846 - check proper condition when freeing gpio When driver uses custom pendown detection method gpio_pendown is not set up and so we should not try to free it, otherwise we are presented with: ------------[ cut here ]------------ WARNING: at drivers/gpio/gpiolib.c:1258 gpio_free+0x100/0x12c() Modules linked in: [] (unwind_backtrace+0x0/0xe4) from [](warn_slowpath_common+0x4c/0x64) [] (warn_slowpath_common+0x4c/0x64) from [](warn_slowpath_null+0x18/0x1c) [] (warn_slowpath_null+0x18/0x1c) from [](gpio_free+0x100/0x12c) [] (gpio_free+0x100/0x12c) from [](ads7846_probe+0xa38/0xc5c) [] (ads7846_probe+0xa38/0xc5c) from [](spi_drv_probe+0x18/0x1c) [] (spi_drv_probe+0x18/0x1c) from [](driver_probe_device+0xc8/0x184) [] (driver_probe_device+0xc8/0x184) from [](__driver_attach+0x68/0x8c) [] (__driver_attach+0x68/0x8c) from [](bus_for_each_dev+0x48/0x74) [] (bus_for_each_dev+0x48/0x74) from [](bus_add_driver+0xa0/0x220) [] (bus_add_driver+0xa0/0x220) from [](driver_register+0xa8/0x134) [] (driver_register+0xa8/0x134) from [](do_one_initcall+0xcc/0x1a4) [] (do_one_initcall+0xcc/0x1a4) from [](kernel_init+0x14c/0x214) [] (kernel_init+0x14c/0x214) from [](kernel_thread_exit+0x0/0x8) ---[ end trace 4053287f8a5ec18f ]--- Also rearrange ads7846_setup_pendown() to have only one exit point returning success. Reported-by: Sourav Poddar Acked-by: Wolfram Sang Reviewed-by: Charulatha V Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/ads7846.c | 38 +++++++++++++++++------------ 1 file changed, 22 insertions(+), 16 deletions(-) diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index 14ea54b78e46..4bf2316e3284 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -941,28 +941,29 @@ static int __devinit ads7846_setup_pendown(struct spi_device *spi, struct ads784 struct ads7846_platform_data *pdata = spi->dev.platform_data; int err; - /* REVISIT when the irq can be triggered active-low, or if for some + /* + * REVISIT when the irq can be triggered active-low, or if for some * reason the touchscreen isn't hooked up, we don't need to access * the pendown state. */ - if (!pdata->get_pendown_state && !gpio_is_valid(pdata->gpio_pendown)) { - dev_err(&spi->dev, "no get_pendown_state nor gpio_pendown?\n"); - return -EINVAL; - } if (pdata->get_pendown_state) { ts->get_pendown_state = pdata->get_pendown_state; - return 0; - } + } else if (gpio_is_valid(pdata->gpio_pendown)) { - err = gpio_request(pdata->gpio_pendown, "ads7846_pendown"); - if (err) { - dev_err(&spi->dev, "failed to request pendown GPIO%d\n", - pdata->gpio_pendown); - return err; - } + err = gpio_request(pdata->gpio_pendown, "ads7846_pendown"); + if (err) { + dev_err(&spi->dev, "failed to request pendown GPIO%d\n", + pdata->gpio_pendown); + return err; + } - ts->gpio_pendown = pdata->gpio_pendown; + ts->gpio_pendown = pdata->gpio_pendown; + + } else { + dev_err(&spi->dev, "no get_pendown_state nor gpio_pendown?\n"); + return -EINVAL; + } return 0; } @@ -1353,7 +1354,7 @@ static int __devinit ads7846_probe(struct spi_device *spi) err_put_regulator: regulator_put(ts->reg); err_free_gpio: - if (ts->gpio_pendown != -1) + if (!ts->get_pendown_state) gpio_free(ts->gpio_pendown); err_cleanup_filter: if (ts->filter_cleanup) @@ -1383,8 +1384,13 @@ static int __devexit ads7846_remove(struct spi_device *spi) regulator_disable(ts->reg); regulator_put(ts->reg); - if (ts->gpio_pendown != -1) + if (!ts->get_pendown_state) { + /* + * If we are not using specialized pendown method we must + * have been relying on gpio we set up ourselves. + */ gpio_free(ts->gpio_pendown); + } if (ts->filter_cleanup) ts->filter_cleanup(ts->filter_data); From 4b6d44344000ff3e62faf595e5f89fd8d9e52a94 Mon Sep 17 00:00:00 2001 From: Alexander Strakh Date: Fri, 11 Feb 2011 00:44:41 -0800 Subject: [PATCH 181/277] Input: wacom - fix error path in wacom_probe() If we fail to retrieve HID descriptor we need to free allocated URB so jump to proper label to do that. Signed-off-by: Alexander Strakh Acked-by: Henrik Rydberg Signed-off-by: Dmitry Torokhov --- drivers/input/tablet/wacom_sys.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c index fc381498b798..cf8fb9f5d4a8 100644 --- a/drivers/input/tablet/wacom_sys.c +++ b/drivers/input/tablet/wacom_sys.c @@ -519,7 +519,7 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i /* Retrieve the physical and logical size for OEM devices */ error = wacom_retrieve_hid_descriptor(intf, features); if (error) - goto fail2; + goto fail3; wacom_setup_device_quirks(features); From cfaea56741360311d0dabcb6603fa78c2e3de155 Mon Sep 17 00:00:00 2001 From: Trilok Soni Date: Fri, 11 Feb 2011 00:44:41 -0800 Subject: [PATCH 182/277] Input: matrix_keypad - increase the limit of rows and columns Some keyboard controllers support more than 16 columns and rows. Increase the limit to 32. Signed-off-by: Trilok Soni Acked-by: Eric Miao Signed-off-by: Dmitry Torokhov --- include/linux/input/matrix_keypad.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/input/matrix_keypad.h b/include/linux/input/matrix_keypad.h index 80352ad6581a..b67feb8513a6 100644 --- a/include/linux/input/matrix_keypad.h +++ b/include/linux/input/matrix_keypad.h @@ -4,8 +4,8 @@ #include #include -#define MATRIX_MAX_ROWS 16 -#define MATRIX_MAX_COLS 16 +#define MATRIX_MAX_ROWS 32 +#define MATRIX_MAX_COLS 32 #define KEY(row, col, val) ((((row) & (MATRIX_MAX_ROWS - 1)) << 24) |\ (((col) & (MATRIX_MAX_COLS - 1)) << 16) |\ From 1aad7ac0458f40e2d0365d488620084f3965f6e7 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 9 Feb 2011 18:46:58 +0000 Subject: [PATCH 183/277] drm/i915: Trigger modesetting if force-audio changes If the user changes the force-audio property and it no longer reflects the current configuration, then we need to trigger a mode set in order to update the registers. Signed-off-by: Chris Wilson --- drivers/gpu/drm/i915/intel_dp.c | 36 +++++++++++++++++++++++----- drivers/gpu/drm/i915/intel_hdmi.c | 39 ++++++++++++++++++++++++++----- drivers/gpu/drm/i915/intel_sdvo.c | 34 ++++++++++++++++++++++----- 3 files changed, 91 insertions(+), 18 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 1f4242b682c8..51cb4e36997f 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1639,6 +1639,24 @@ static int intel_dp_get_modes(struct drm_connector *connector) return 0; } +static bool +intel_dp_detect_audio(struct drm_connector *connector) +{ + struct intel_dp *intel_dp = intel_attached_dp(connector); + struct edid *edid; + bool has_audio = false; + + edid = drm_get_edid(connector, &intel_dp->adapter); + if (edid) { + has_audio = drm_detect_monitor_audio(edid); + + connector->display_info.raw_edid = NULL; + kfree(edid); + } + + return has_audio; +} + static int intel_dp_set_property(struct drm_connector *connector, struct drm_property *property, @@ -1652,17 +1670,23 @@ intel_dp_set_property(struct drm_connector *connector, return ret; if (property == intel_dp->force_audio_property) { - if (val == intel_dp->force_audio) + int i = val; + bool has_audio; + + if (i == intel_dp->force_audio) return 0; - intel_dp->force_audio = val; + intel_dp->force_audio = i; - if (val > 0 && intel_dp->has_audio) - return 0; - if (val < 0 && !intel_dp->has_audio) + if (i == 0) + has_audio = intel_dp_detect_audio(connector); + else + has_audio = i > 0; + + if (has_audio == intel_dp->has_audio) return 0; - intel_dp->has_audio = val > 0; + intel_dp->has_audio = has_audio; goto done; } diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 0d0273e7b029..c635c9e357b9 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -251,6 +251,27 @@ static int intel_hdmi_get_modes(struct drm_connector *connector) &dev_priv->gmbus[intel_hdmi->ddc_bus].adapter); } +static bool +intel_hdmi_detect_audio(struct drm_connector *connector) +{ + struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector); + struct drm_i915_private *dev_priv = connector->dev->dev_private; + struct edid *edid; + bool has_audio = false; + + edid = drm_get_edid(connector, + &dev_priv->gmbus[intel_hdmi->ddc_bus].adapter); + if (edid) { + if (edid->input & DRM_EDID_INPUT_DIGITAL) + has_audio = drm_detect_monitor_audio(edid); + + connector->display_info.raw_edid = NULL; + kfree(edid); + } + + return has_audio; +} + static int intel_hdmi_set_property(struct drm_connector *connector, struct drm_property *property, @@ -264,17 +285,23 @@ intel_hdmi_set_property(struct drm_connector *connector, return ret; if (property == intel_hdmi->force_audio_property) { - if (val == intel_hdmi->force_audio) + int i = val; + bool has_audio; + + if (i == intel_hdmi->force_audio) return 0; - intel_hdmi->force_audio = val; + intel_hdmi->force_audio = i; - if (val > 0 && intel_hdmi->has_audio) - return 0; - if (val < 0 && !intel_hdmi->has_audio) + if (i == 0) + has_audio = intel_hdmi_detect_audio(connector); + else + has_audio = i > 0; + + if (has_audio == intel_hdmi->has_audio) return 0; - intel_hdmi->has_audio = val > 0; + intel_hdmi->has_audio = has_audio; goto done; } diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index d2dd90a9a101..7c50cdce84f0 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -1690,6 +1690,22 @@ static void intel_sdvo_destroy(struct drm_connector *connector) kfree(connector); } +static bool intel_sdvo_detect_hdmi_audio(struct drm_connector *connector) +{ + struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector); + struct edid *edid; + bool has_audio = false; + + if (!intel_sdvo->is_hdmi) + return false; + + edid = intel_sdvo_get_edid(connector); + if (edid != NULL && edid->input & DRM_EDID_INPUT_DIGITAL) + has_audio = drm_detect_monitor_audio(edid); + + return has_audio; +} + static int intel_sdvo_set_property(struct drm_connector *connector, struct drm_property *property, @@ -1706,17 +1722,23 @@ intel_sdvo_set_property(struct drm_connector *connector, return ret; if (property == intel_sdvo_connector->force_audio_property) { - if (val == intel_sdvo_connector->force_audio) + int i = val; + bool has_audio; + + if (i == intel_sdvo_connector->force_audio) return 0; - intel_sdvo_connector->force_audio = val; + intel_sdvo_connector->force_audio = i; - if (val > 0 && intel_sdvo->has_hdmi_audio) - return 0; - if (val < 0 && !intel_sdvo->has_hdmi_audio) + if (i == 0) + has_audio = intel_sdvo_detect_hdmi_audio(connector); + else + has_audio = i > 0; + + if (has_audio == intel_sdvo->has_hdmi_audio) return 0; - intel_sdvo->has_hdmi_audio = val > 0; + intel_sdvo->has_hdmi_audio = has_audio; goto done; } From 8102e126c0827b5336065fd86d3d313b60fde23a Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Thu, 10 Feb 2011 10:05:35 +0000 Subject: [PATCH 184/277] drm/i915/tv: Use polling rather than interrupt-based hotplug The documentation recommends that we should use a polling method for TV detection as this is more power efficient than the interrupt based mechanism (as the encoder can be completely switched off). A secondary effect is that leaving the hotplug enabled seems to be causing pipe underruns as reported by Hugh Dickins on his Crestline. Tested-by: Hugh Dickins Signed-off-by: Chris Wilson [This is a candidate for stable, but needs minor porting to 2.6.37] --- drivers/gpu/drm/i915/intel_tv.c | 43 +++++++++++++++++++++++---------- 1 file changed, 30 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c index 93206e4eaa6f..fe4a53a50b83 100644 --- a/drivers/gpu/drm/i915/intel_tv.c +++ b/drivers/gpu/drm/i915/intel_tv.c @@ -1234,7 +1234,8 @@ static const struct drm_display_mode reported_modes[] = { * \return false if TV is disconnected. */ static int -intel_tv_detect_type (struct intel_tv *intel_tv) +intel_tv_detect_type (struct intel_tv *intel_tv, + struct drm_connector *connector) { struct drm_encoder *encoder = &intel_tv->base.base; struct drm_device *dev = encoder->dev; @@ -1245,11 +1246,13 @@ intel_tv_detect_type (struct intel_tv *intel_tv) int type; /* Disable TV interrupts around load detect or we'll recurse */ - spin_lock_irqsave(&dev_priv->irq_lock, irqflags); - i915_disable_pipestat(dev_priv, 0, - PIPE_HOTPLUG_INTERRUPT_ENABLE | - PIPE_HOTPLUG_TV_INTERRUPT_ENABLE); - spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); + if (connector->polled & DRM_CONNECTOR_POLL_HPD) { + spin_lock_irqsave(&dev_priv->irq_lock, irqflags); + i915_disable_pipestat(dev_priv, 0, + PIPE_HOTPLUG_INTERRUPT_ENABLE | + PIPE_HOTPLUG_TV_INTERRUPT_ENABLE); + spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); + } save_tv_dac = tv_dac = I915_READ(TV_DAC); save_tv_ctl = tv_ctl = I915_READ(TV_CTL); @@ -1302,11 +1305,13 @@ intel_tv_detect_type (struct intel_tv *intel_tv) I915_WRITE(TV_CTL, save_tv_ctl); /* Restore interrupt config */ - spin_lock_irqsave(&dev_priv->irq_lock, irqflags); - i915_enable_pipestat(dev_priv, 0, - PIPE_HOTPLUG_INTERRUPT_ENABLE | - PIPE_HOTPLUG_TV_INTERRUPT_ENABLE); - spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); + if (connector->polled & DRM_CONNECTOR_POLL_HPD) { + spin_lock_irqsave(&dev_priv->irq_lock, irqflags); + i915_enable_pipestat(dev_priv, 0, + PIPE_HOTPLUG_INTERRUPT_ENABLE | + PIPE_HOTPLUG_TV_INTERRUPT_ENABLE); + spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags); + } return type; } @@ -1356,7 +1361,7 @@ intel_tv_detect(struct drm_connector *connector, bool force) drm_mode_set_crtcinfo(&mode, CRTC_INTERLACE_HALVE_V); if (intel_tv->base.base.crtc && intel_tv->base.base.crtc->enabled) { - type = intel_tv_detect_type(intel_tv); + type = intel_tv_detect_type(intel_tv, connector); } else if (force) { struct drm_crtc *crtc; int dpms_mode; @@ -1364,7 +1369,7 @@ intel_tv_detect(struct drm_connector *connector, bool force) crtc = intel_get_load_detect_pipe(&intel_tv->base, connector, &mode, &dpms_mode); if (crtc) { - type = intel_tv_detect_type(intel_tv); + type = intel_tv_detect_type(intel_tv, connector); intel_release_load_detect_pipe(&intel_tv->base, connector, dpms_mode); } else @@ -1658,6 +1663,18 @@ intel_tv_init(struct drm_device *dev) intel_encoder = &intel_tv->base; connector = &intel_connector->base; + /* The documentation, for the older chipsets at least, recommend + * using a polling method rather than hotplug detection for TVs. + * This is because in order to perform the hotplug detection, the PLLs + * for the TV must be kept alive increasing power drain and starving + * bandwidth from other encoders. Notably for instance, it causes + * pipe underruns on Crestline when this encoder is supposedly idle. + * + * More recent chipsets favour HDMI rather than integrated S-Video. + */ + connector->polled = + DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT; + drm_connector_init(dev, connector, &intel_tv_connector_funcs, DRM_MODE_CONNECTOR_SVIDEO); From 04dbff52600719017598f7439bf42e5a72e7de3b Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Thu, 10 Feb 2011 17:38:35 +0000 Subject: [PATCH 185/277] drm/i915: Fix resume regression from 5d1d0cc MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The irony of the patch to fix the resume regression on PineView causing a further regression on Ironlake is not lost on me. Reported-by: Jeff Chua Reported-by: Björn Schließmann Tested-by: Björn Schließmann Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=28802 Signed-off-by: Chris Wilson --- drivers/gpu/drm/i915/intel_display.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 94622e3a202e..3b006536b3d2 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5558,9 +5558,7 @@ static void intel_crtc_reset(struct drm_crtc *crtc) /* Reset flags back to the 'unknown' status so that they * will be correctly set on the initial modeset. */ - intel_crtc->cursor_addr = 0; intel_crtc->dpms_mode = -1; - intel_crtc->active = true; /* force the pipe off on setup_init_config */ } static struct drm_crtc_helper_funcs intel_helper_funcs = { @@ -5666,6 +5664,7 @@ static void intel_crtc_init(struct drm_device *dev, int pipe) dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base; intel_crtc_reset(&intel_crtc->base); + intel_crtc->active = true; /* force the pipe off on setup_init_config */ if (HAS_PCH_SPLIT(dev)) { intel_helper_funcs.prepare = ironlake_crtc_prepare; From 6b155c8fd4d239f7d883d455bbad1be47724bbfc Mon Sep 17 00:00:00 2001 From: David Teigland Date: Fri, 11 Feb 2011 16:44:31 -0600 Subject: [PATCH 186/277] dlm: use single thread workqueues The recent commit to use cmwq for send and recv threads dcce240ead802d42b1e45ad2fcb2ed4a399cb255 introduced problems, apparently due to multiple workqueue threads. Single threads make the problems go away, so return to that until we fully understand the concurrency issues with multiple threads. Signed-off-by: David Teigland --- fs/dlm/lowcomms.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c index 9c64ae9e4c1a..2d8c87b951c2 100644 --- a/fs/dlm/lowcomms.c +++ b/fs/dlm/lowcomms.c @@ -1468,15 +1468,13 @@ static void work_stop(void) static int work_start(void) { - recv_workqueue = alloc_workqueue("dlm_recv", WQ_MEM_RECLAIM | - WQ_HIGHPRI | WQ_FREEZEABLE, 0); + recv_workqueue = create_singlethread_workqueue("dlm_recv"); if (!recv_workqueue) { log_print("can't start dlm_recv"); return -ENOMEM; } - send_workqueue = alloc_workqueue("dlm_send", WQ_MEM_RECLAIM | - WQ_HIGHPRI | WQ_FREEZEABLE, 0); + send_workqueue = create_singlethread_workqueue("dlm_send"); if (!send_workqueue) { log_print("can't start dlm_send"); destroy_workqueue(recv_workqueue); From 9bc433a1db702138371c565526232e9159f14497 Mon Sep 17 00:00:00 2001 From: Dave Martin Date: Fri, 11 Feb 2011 16:41:20 +0100 Subject: [PATCH 187/277] ARM: 6659/1: Thumb-2: Make CONFIG_OABI_COMPAT depend on !CONFIG_THUMB2_KERNEL rmk says: "You might as well make OABI_COMPAT depend on !THUMB2_KERNEL. OABI userland is useless without FPA support." nwfpe doesn't work with Thumb-2 anyway and will probably never get ported, so I can't argue with that. This patch implements the dependency change. Signed-off-by: Dave Martin Acked-by: Nicolas Pitre Signed-off-by: Russell King --- arch/arm/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 5cff165b7eb0..26d45e5b636b 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1391,7 +1391,7 @@ config AEABI config OABI_COMPAT bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)" - depends on AEABI && EXPERIMENTAL + depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL default y help This option preserves the old syscall interface along with the From 34cd2d38db423a991a36d14e9f79e98993addd07 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Fri, 11 Feb 2011 16:26:10 +0100 Subject: [PATCH 188/277] ARM: 6658/1: collie: do actually pass locomo_info to locomo driver MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit locomo_info isn't actually used as a platform_data on collie platform: arm/mach-sa1100/collie.c:237: warning: ‘locomo_info’ defined but not used So locomo driver doesn't setup IRQs correctly. Pass locomo_info to the driver. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Russell King --- arch/arm/mach-sa1100/collie.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/mach-sa1100/collie.c b/arch/arm/mach-sa1100/collie.c index d43c5ef58eb6..bd3e1bfdd6aa 100644 --- a/arch/arm/mach-sa1100/collie.c +++ b/arch/arm/mach-sa1100/collie.c @@ -241,6 +241,9 @@ static struct locomo_platform_data locomo_info = { struct platform_device collie_locomo_device = { .name = "locomo", .id = 0, + .dev = { + .platform_data = &locomo_info, + }, .num_resources = ARRAY_SIZE(locomo_resources), .resource = locomo_resources, }; From ed19b739c5c76ad241d30f6c6a5ee96fb284f4cf Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 11 Feb 2011 15:55:12 +0100 Subject: [PATCH 189/277] ARM: 6656/1: hw_breakpoint: avoid UNPREDICTABLE behaviour when reading DBGDSCR Reading baseline CP14 registers, other than DBGDIDR, when the OS Lock is set leads to UNPREDICTABLE behaviour. This patch ensures that we clear the OS lock before accessing anything other than the DBGDIDR, thereby avoiding this behaviour. Signed-off-by: Will Deacon Signed-off-by: Russell King --- arch/arm/kernel/hw_breakpoint.c | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c index c9f3f0467570..ab02d8aadb77 100644 --- a/arch/arm/kernel/hw_breakpoint.c +++ b/arch/arm/kernel/hw_breakpoint.c @@ -834,11 +834,11 @@ static void reset_ctrl_regs(void *unused) /* * v7 debug contains save and restore registers so that debug state - * can be maintained across low-power modes without leaving - * the debug logic powered up. It is IMPLEMENTATION DEFINED whether - * we can write to the debug registers out of reset, so we must - * unlock the OS Lock Access Register to avoid taking undefined - * instruction exceptions later on. + * can be maintained across low-power modes without leaving the debug + * logic powered up. It is IMPLEMENTATION DEFINED whether we can access + * the debug registers out of reset, so we must unlock the OS Lock + * Access Register to avoid taking undefined instruction exceptions + * later on. */ if (debug_arch >= ARM_DEBUG_ARCH_V7_ECP14) { /* @@ -899,18 +899,18 @@ static int __init arch_hw_breakpoint_init(void) pr_info("%d breakpoint(s) reserved for watchpoint " "single-step.\n", core_num_reserved_brps); + /* + * Reset the breakpoint resources. We assume that a halting + * debugger will leave the world in a nice state for us. + */ + on_each_cpu(reset_ctrl_regs, NULL, 1); + ARM_DBG_READ(c1, 0, dscr); if (dscr & ARM_DSCR_HDBGEN) { + max_watchpoint_len = 4; pr_warning("halting debug mode enabled. Assuming maximum " - "watchpoint size of 4 bytes."); + "watchpoint size of %u bytes.", max_watchpoint_len); } else { - /* - * Reset the breakpoint resources. We assume that a halting - * debugger will leave the world in a nice state for us. - */ - smp_call_function(reset_ctrl_regs, NULL, 1); - reset_ctrl_regs(NULL); - /* Work out the maximum supported watchpoint length. */ max_watchpoint_len = get_max_wp_len(); pr_info("maximum watchpoint size is %u bytes.\n", From 66e1cfe6d52c69d317e9df76ebc8538a34af0d51 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 11 Feb 2011 16:01:42 +0100 Subject: [PATCH 190/277] ARM: 6657/1: hw_breakpoint: fix ptrace breakpoint advertising on unsupported arch The ptrace debug information register was advertising breakpoint and watchpoint resources for unsupported debug architectures. This meant that setting breakpoints on these architectures would appear to succeed, although they would never fire in reality. This patch fixes the breakpoint slot probing so that it returns 0 when running on an unsupported debug architecture. Reported-by: Ulrich Weigand Signed-off-by: Will Deacon Signed-off-by: Russell King --- arch/arm/kernel/hw_breakpoint.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c index ab02d8aadb77..d600bd350704 100644 --- a/arch/arm/kernel/hw_breakpoint.c +++ b/arch/arm/kernel/hw_breakpoint.c @@ -137,11 +137,10 @@ static u8 get_debug_arch(void) u32 didr; /* Do we implement the extended CPUID interface? */ - if (((read_cpuid_id() >> 16) & 0xf) != 0xf) { - pr_warning("CPUID feature registers not supported. " - "Assuming v6 debug is present.\n"); + if (WARN_ONCE((((read_cpuid_id() >> 16) & 0xf) != 0xf), + "CPUID feature registers not supported. " + "Assuming v6 debug is present.\n")) return ARM_DEBUG_ARCH_V6; - } ARM_DBG_READ(c0, 0, didr); return (didr >> 16) & 0xf; @@ -152,6 +151,12 @@ u8 arch_get_debug_arch(void) return debug_arch; } +static int debug_arch_supported(void) +{ + u8 arch = get_debug_arch(); + return arch >= ARM_DEBUG_ARCH_V6 && arch <= ARM_DEBUG_ARCH_V7_ECP14; +} + /* Determine number of BRP register available. */ static int get_num_brp_resources(void) { @@ -268,6 +273,9 @@ out: int hw_breakpoint_slots(int type) { + if (!debug_arch_supported()) + return 0; + /* * We can be called early, so don't rely on * our static variables being initialised. @@ -882,7 +890,7 @@ static int __init arch_hw_breakpoint_init(void) debug_arch = get_debug_arch(); - if (debug_arch > ARM_DEBUG_ARCH_V7_ECP14) { + if (!debug_arch_supported()) { pr_info("debug architecture 0x%x unsupported.\n", debug_arch); return 0; } From 2dab597441667d6c04451a7dcf215241ad4c74f6 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 11 Feb 2011 15:53:38 -0800 Subject: [PATCH 191/277] Fix possible filp_cachep memory corruption In commit 31e6b01f4183 ("fs: rcu-walk for path lookup") we started doing path lookup using RCU, which then falls back to a careful non-RCU lookup in case of problems (LOOKUP_REVAL). So do_filp_open() has this "re-do the lookup carefully" looping case. However, that means that we must not release the open-intent file data if we are going to loop around and use it once more! Fix this by moving the release of the open-intent data to the function that allocates it (do_filp_open() itself) rather than the helper functions that can get called multiple times (finish_open() and do_last()). This makes the logic for the lifetime of that field much more obvious, and avoids the possible double free. Reported-by: J. R. Okajima Acked-by: Al Viro Cc: Nick Piggin Cc: Andrew Morton Signed-off-by: Linus Torvalds --- fs/namei.c | 20 ++++++++++---------- fs/open.c | 2 ++ 2 files changed, 12 insertions(+), 10 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 7d77f24d32a9..ec4b2d0190a8 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -561,10 +561,14 @@ static inline int nameidata_drop_rcu_last_maybe(struct nameidata *nd) */ void release_open_intent(struct nameidata *nd) { - if (nd->intent.open.file->f_path.dentry == NULL) - put_filp(nd->intent.open.file); - else - fput(nd->intent.open.file); + struct file *file = nd->intent.open.file; + + if (file && !IS_ERR(file)) { + if (file->f_path.dentry == NULL) + put_filp(file); + else + fput(file); + } } /* @@ -2265,8 +2269,6 @@ static struct file *finish_open(struct nameidata *nd, return filp; exit: - if (!IS_ERR(nd->intent.open.file)) - release_open_intent(nd); path_put(&nd->path); return ERR_PTR(error); } @@ -2389,8 +2391,6 @@ exit_mutex_unlock: exit_dput: path_put_conditional(path, nd); exit: - if (!IS_ERR(nd->intent.open.file)) - release_open_intent(nd); path_put(&nd->path); return ERR_PTR(error); } @@ -2477,6 +2477,7 @@ struct file *do_filp_open(int dfd, const char *pathname, } audit_inode(pathname, nd.path.dentry); filp = finish_open(&nd, open_flag, acc_mode); + release_open_intent(&nd); return filp; creat: @@ -2553,6 +2554,7 @@ out: path_put(&nd.root); if (filp == ERR_PTR(-ESTALE) && !(flags & LOOKUP_REVAL)) goto reval; + release_open_intent(&nd); return filp; exit_dput: @@ -2560,8 +2562,6 @@ exit_dput: out_path: path_put(&nd.path); out_filp: - if (!IS_ERR(nd.intent.open.file)) - release_open_intent(&nd); filp = ERR_PTR(error); goto out; } diff --git a/fs/open.c b/fs/open.c index e52389e1f05b..5a2c6ebc22b5 100644 --- a/fs/open.c +++ b/fs/open.c @@ -790,6 +790,8 @@ struct file *nameidata_to_filp(struct nameidata *nd) /* Pick up the filp from the open intent */ filp = nd->intent.open.file; + nd->intent.open.file = NULL; + /* Has the filesystem initialised the file for us? */ if (filp->f_path.dentry == NULL) { path_get(&nd->path); From d863b50ab01333659314c2034890cb76d9fdc3c7 Mon Sep 17 00:00:00 2001 From: Boaz Harrosh Date: Thu, 10 Feb 2011 15:01:20 -0800 Subject: [PATCH 192/277] vfs: call rcu_barrier after ->kill_sb() In commit fa0d7e3de6d6 ("fs: icache RCU free inodes"), we use rcu free inode instead of freeing the inode directly. It causes a crash when we rmmod immediately after we umount the volume[1]. So we need to call rcu_barrier after we kill_sb so that the inode is freed before we do rmmod. The idea is inspired by Aneesh Kumar. rcu_barrier will wait for all callbacks to end before preceding. The original patch was done by Tao Ma, but synchronize_rcu() is not enough here. 1. http://marc.info/?l=linux-fsdevel&m=129680863330185&w=2 Tested-by: Tao Ma Signed-off-by: Boaz Harrosh Cc: Nick Piggin Cc: Al Viro Cc: Chris Mason Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/super.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/super.c b/fs/super.c index 74e149efed81..7e9dd4cc2c01 100644 --- a/fs/super.c +++ b/fs/super.c @@ -177,6 +177,11 @@ void deactivate_locked_super(struct super_block *s) struct file_system_type *fs = s->s_type; if (atomic_dec_and_test(&s->s_active)) { fs->kill_sb(s); + /* + * We need to call rcu_barrier so all the delayed rcu free + * inodes are flushed before we release the fs module. + */ + rcu_barrier(); put_filesystem(fs); put_super(s); } else { From 01e05e9a90b8f4c3997ae0537e87720eb475e532 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 10 Feb 2011 15:01:22 -0800 Subject: [PATCH 193/277] ptrace: use safer wake up on ptrace_detach() The wake_up_process() call in ptrace_detach() is spurious and not interlocked with the tracee state. IOW, the tracee could be running or sleeping in any place in the kernel by the time wake_up_process() is called. This can lead to the tracee waking up unexpectedly which can be dangerous. The wake_up is spurious and should be removed but for now reduce its toxicity by only waking up if the tracee is in TRACED or STOPPED state. This bug can possibly be used as an attack vector. I don't think it will take too much effort to come up with an attack which triggers oops somewhere. Most sleeps are wrapped in condition test loops and should be safe but we have quite a number of places where sleep and wakeup conditions are expected to be interlocked. Although the window of opportunity is tiny, ptrace can be used by non-privileged users and with some loading the window can definitely be extended and exploited. Signed-off-by: Tejun Heo Acked-by: Roland McGrath Acked-by: Oleg Nesterov Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/ptrace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/ptrace.c b/kernel/ptrace.c index 99bbaa3e5b0d..1708b1e2972d 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -313,7 +313,7 @@ int ptrace_detach(struct task_struct *child, unsigned int data) child->exit_code = data; dead = __ptrace_detach(current, child); if (!child->exit_state) - wake_up_process(child); + wake_up_state(child, TASK_TRACED | TASK_STOPPED); } write_unlock_irq(&tasklist_lock); From 6e20fb18054c179d7e64c0af43d855b9310a3394 Mon Sep 17 00:00:00 2001 From: Roland Stigge Date: Thu, 10 Feb 2011 15:01:23 -0800 Subject: [PATCH 194/277] drivers/gpio/pca953x.c: add a mutex to fix race condition Add a mutex to register communication and handling. Without the mutex, GPIOs didn't switch as expected when toggled in a fast sequence of status changes of multiple outputs. Signed-off-by: Roland Stigge Acked-by: Eric Miao Cc: Grant Likely Cc: Marc Zyngier Cc: Ben Gardner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/gpio/pca953x.c | 28 ++++++++++++++++++++++------ 1 file changed, 22 insertions(+), 6 deletions(-) diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c index a261972f603d..b473429eee75 100644 --- a/drivers/gpio/pca953x.c +++ b/drivers/gpio/pca953x.c @@ -60,6 +60,7 @@ struct pca953x_chip { unsigned gpio_start; uint16_t reg_output; uint16_t reg_direction; + struct mutex i2c_lock; #ifdef CONFIG_GPIO_PCA953X_IRQ struct mutex irq_lock; @@ -119,13 +120,17 @@ static int pca953x_gpio_direction_input(struct gpio_chip *gc, unsigned off) chip = container_of(gc, struct pca953x_chip, gpio_chip); + mutex_lock(&chip->i2c_lock); reg_val = chip->reg_direction | (1u << off); ret = pca953x_write_reg(chip, PCA953X_DIRECTION, reg_val); if (ret) - return ret; + goto exit; chip->reg_direction = reg_val; - return 0; + ret = 0; +exit: + mutex_unlock(&chip->i2c_lock); + return ret; } static int pca953x_gpio_direction_output(struct gpio_chip *gc, @@ -137,6 +142,7 @@ static int pca953x_gpio_direction_output(struct gpio_chip *gc, chip = container_of(gc, struct pca953x_chip, gpio_chip); + mutex_lock(&chip->i2c_lock); /* set output level */ if (val) reg_val = chip->reg_output | (1u << off); @@ -145,7 +151,7 @@ static int pca953x_gpio_direction_output(struct gpio_chip *gc, ret = pca953x_write_reg(chip, PCA953X_OUTPUT, reg_val); if (ret) - return ret; + goto exit; chip->reg_output = reg_val; @@ -153,10 +159,13 @@ static int pca953x_gpio_direction_output(struct gpio_chip *gc, reg_val = chip->reg_direction & ~(1u << off); ret = pca953x_write_reg(chip, PCA953X_DIRECTION, reg_val); if (ret) - return ret; + goto exit; chip->reg_direction = reg_val; - return 0; + ret = 0; +exit: + mutex_unlock(&chip->i2c_lock); + return ret; } static int pca953x_gpio_get_value(struct gpio_chip *gc, unsigned off) @@ -167,7 +176,9 @@ static int pca953x_gpio_get_value(struct gpio_chip *gc, unsigned off) chip = container_of(gc, struct pca953x_chip, gpio_chip); + mutex_lock(&chip->i2c_lock); ret = pca953x_read_reg(chip, PCA953X_INPUT, ®_val); + mutex_unlock(&chip->i2c_lock); if (ret < 0) { /* NOTE: diagnostic already emitted; that's all we should * do unless gpio_*_value_cansleep() calls become different @@ -187,6 +198,7 @@ static void pca953x_gpio_set_value(struct gpio_chip *gc, unsigned off, int val) chip = container_of(gc, struct pca953x_chip, gpio_chip); + mutex_lock(&chip->i2c_lock); if (val) reg_val = chip->reg_output | (1u << off); else @@ -194,9 +206,11 @@ static void pca953x_gpio_set_value(struct gpio_chip *gc, unsigned off, int val) ret = pca953x_write_reg(chip, PCA953X_OUTPUT, reg_val); if (ret) - return; + goto exit; chip->reg_output = reg_val; +exit: + mutex_unlock(&chip->i2c_lock); } static void pca953x_setup_gpio(struct pca953x_chip *chip, int gpios) @@ -517,6 +531,8 @@ static int __devinit pca953x_probe(struct i2c_client *client, chip->names = pdata->names; + mutex_init(&chip->i2c_lock); + /* initialize cached registers from their original values. * we can't share this chip with another i2c master. */ From 24a6f5b8589d2abfbf523c59ab1258726edc164f Mon Sep 17 00:00:00 2001 From: Alexander Strakh Date: Thu, 10 Feb 2011 15:01:25 -0800 Subject: [PATCH 195/277] drivers/rtc/rtc-proc.c: add module_put on error path in rtc_proc_open() In file drivers/rtc/rtc-proc.c seq_open() can return -ENOMEM. 86 if (!try_module_get(THIS_MODULE)) 87 return -ENODEV; 88 89 return single_open(file, rtc_proc_show, rtc); In this case before exiting (line 89) from rtc_proc_open the module_put(THIS_MODULE) must be called. Found by Linux Device Drivers Verification Project Signed-off-by: Alexander Strakh Cc: Alessandro Zummo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/rtc/rtc-proc.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/rtc/rtc-proc.c b/drivers/rtc/rtc-proc.c index c086fc30a84c..242bbf86c74a 100644 --- a/drivers/rtc/rtc-proc.c +++ b/drivers/rtc/rtc-proc.c @@ -81,12 +81,16 @@ static int rtc_proc_show(struct seq_file *seq, void *offset) static int rtc_proc_open(struct inode *inode, struct file *file) { + int ret; struct rtc_device *rtc = PDE(inode)->data; if (!try_module_get(THIS_MODULE)) return -ENODEV; - return single_open(file, rtc_proc_show, rtc); + ret = single_open(file, rtc_proc_show, rtc); + if (ret) + module_put(THIS_MODULE); + return ret; } static int rtc_proc_release(struct inode *inode, struct file *file) From de1f016f882e52facc3c8609599f827bcdd14af9 Mon Sep 17 00:00:00 2001 From: Soren Hansen Date: Thu, 10 Feb 2011 15:01:28 -0800 Subject: [PATCH 196/277] nbd: remove module-level ioctl mutex Commit 2a48fc0ab242417 ("block: autoconvert trivial BKL users to private mutex") replaced uses of the BKL in the nbd driver with mutex operations. Since then, I've been been seeing these lock ups: INFO: task qemu-nbd:16115 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. qemu-nbd D 0000000000000001 0 16115 16114 0x00000004 ffff88007d775d98 0000000000000082 ffff88007d775fd8 ffff88007d774000 0000000000013a80 ffff8800020347e0 ffff88007d775fd8 0000000000013a80 ffff880133730000 ffff880002034440 ffffea0004333db8 ffffffffa071c020 Call Trace: [] __mutex_lock_slowpath+0xf7/0x180 [] mutex_lock+0x2b/0x50 [] nbd_ioctl+0x6c/0x1c0 [nbd] [] blkdev_ioctl+0x230/0x730 [] block_ioctl+0x41/0x50 [] do_vfs_ioctl+0x93/0x370 [] sys_ioctl+0x81/0xa0 [] system_call_fastpath+0x16/0x1b Instrumenting the nbd module's ioctl handler with some extra logging clearly shows the NBD_DO_IT ioctl being invoked which is a long-lived ioctl in the sense that it doesn't return until another ioctl asks the driver to disconnect. However, that other ioctl blocks, waiting for the module-level mutex that replaced the BKL, and then we're stuck. This patch removes the module-level mutex altogether. It's clearly wrong, and as far as I can see, it's entirely unnecessary, since the nbd driver maintains per-device mutexes, and I don't see anything that would require a module-level (or kernel-level, for that matter) mutex. Signed-off-by: Soren Hansen Acked-by: Serge Hallyn Acked-by: Paul Clements Cc: Arnd Bergmann Cc: Jens Axboe Cc: [2.6.37.x] Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/block/nbd.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index a32fb41246f8..e6fc716aca45 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -53,7 +53,6 @@ #define DBG_BLKDEV 0x0100 #define DBG_RX 0x0200 #define DBG_TX 0x0400 -static DEFINE_MUTEX(nbd_mutex); static unsigned int debugflags; #endif /* NDEBUG */ @@ -718,11 +717,9 @@ static int nbd_ioctl(struct block_device *bdev, fmode_t mode, dprintk(DBG_IOCTL, "%s: nbd_ioctl cmd=%s(0x%x) arg=%lu\n", lo->disk->disk_name, ioctl_cmd_to_ascii(cmd), cmd, arg); - mutex_lock(&nbd_mutex); mutex_lock(&lo->tx_lock); error = __nbd_ioctl(bdev, lo, cmd, arg); mutex_unlock(&lo->tx_lock); - mutex_unlock(&nbd_mutex); return error; } From e6d2e2b2b1e1455df16d68a78f4a3874c7b3ad20 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Thu, 10 Feb 2011 15:01:30 -0800 Subject: [PATCH 197/277] memblock: don't adjust size in memblock_find_base() While applying patch to use memblock to find aperture for 64bit x86. Ingo found system with 1g + force_iommu > No AGP bridge found > Node 0: aperture @ 38000000 size 32 MB > Aperture pointing to e820 RAM. Ignoring. > Your BIOS doesn't leave a aperture memory hole > Please enable the IOMMU option in the BIOS setup > This costs you 64 MB of RAM > Cannot allocate aperture memory hole (0,65536K) the corresponding code: addr = memblock_find_in_range(0, 1ULL<<32, aper_size, 512ULL<<20); if (addr == MEMBLOCK_ERROR || addr + aper_size > 0xffffffff) { printk(KERN_ERR "Cannot allocate aperture memory hole (%lx,%uK)\n", addr, aper_size>>10); return 0; } memblock_x86_reserve_range(addr, addr + aper_size, "aperture64") fails because memblock core code align the size with 512M. That could make size way too big. So don't align the size in that case. actually __memblock_alloc_base, the another caller already align that before calling that function. BTW. x86 does not use __memblock_alloc_base... Signed-off-by: Yinghai Lu Cc: Ingo Molnar Cc: David Miller Cc: "H. Peter Anvin" Cc: Benjamin Herrenschmidt Cc: Dave Airlie Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memblock.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/mm/memblock.c b/mm/memblock.c index bdba245d8afd..4618fda975a0 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -137,8 +137,6 @@ static phys_addr_t __init_memblock memblock_find_base(phys_addr_t size, BUG_ON(0 == size); - size = memblock_align_up(size, align); - /* Pump up max_addr */ if (end == MEMBLOCK_ALLOC_ACCESSIBLE) end = memblock.current_limit; From e15f8c01af924e611bc7be1e45449c4a74e5dfdd Mon Sep 17 00:00:00 2001 From: Michel Lespinasse Date: Thu, 10 Feb 2011 15:01:32 -0800 Subject: [PATCH 198/277] mlock: fix race when munlocking pages in do_wp_page() vmscan can lazily find pages that are mapped within VM_LOCKED vmas, and set the PageMlocked bit on these pages, transfering them onto the unevictable list. When do_wp_page() breaks COW within a VM_LOCKED vma, it may need to clear PageMlocked on the old page and set it on the new page instead. This change fixes an issue where do_wp_page() was clearing PageMlocked on the old page while the pte was still pointing to it (as well as rmap). Therefore, we were not protected against vmscan immediately transfering the old page back onto the unevictable list. This could cause pages to get stranded there forever. I propose to move the corresponding code to the end of do_wp_page(), after the pte (and rmap) have been pointed to the new page. Additionally, we can use munlock_vma_page() instead of clear_page_mlock(), so that the old page stays mlocked if there are still other VM_LOCKED vmas mapping it. Signed-off-by: Michel Lespinasse Reviewed-by: KAMEZAWA Hiroyuki Acked-by: Hugh Dickins Cc: Rik van Riel Cc: Andrea Arcangeli Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memory.c | 26 ++++++++++++-------------- 1 file changed, 12 insertions(+), 14 deletions(-) diff --git a/mm/memory.c b/mm/memory.c index 31250faff390..32df03cf13a5 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2219,7 +2219,6 @@ static int do_wp_page(struct mm_struct *mm, struct vm_area_struct *vma, &ptl); if (!pte_same(*page_table, orig_pte)) { unlock_page(old_page); - page_cache_release(old_page); goto unlock; } page_cache_release(old_page); @@ -2289,7 +2288,6 @@ static int do_wp_page(struct mm_struct *mm, struct vm_area_struct *vma, &ptl); if (!pte_same(*page_table, orig_pte)) { unlock_page(old_page); - page_cache_release(old_page); goto unlock; } @@ -2367,16 +2365,6 @@ gotten: } __SetPageUptodate(new_page); - /* - * Don't let another task, with possibly unlocked vma, - * keep the mlocked page. - */ - if ((vma->vm_flags & VM_LOCKED) && old_page) { - lock_page(old_page); /* for LRU manipulation */ - clear_page_mlock(old_page); - unlock_page(old_page); - } - if (mem_cgroup_newpage_charge(new_page, mm, GFP_KERNEL)) goto oom_free_new; @@ -2444,10 +2432,20 @@ gotten: if (new_page) page_cache_release(new_page); - if (old_page) - page_cache_release(old_page); unlock: pte_unmap_unlock(page_table, ptl); + if (old_page) { + /* + * Don't let another task, with possibly unlocked vma, + * keep the mlocked page. + */ + if ((ret & VM_FAULT_WRITE) && (vma->vm_flags & VM_LOCKED)) { + lock_page(old_page); /* LRU manipulation */ + munlock_vma_page(old_page); + unlock_page(old_page); + } + page_cache_release(old_page); + } return ret; oom_free_new: page_cache_release(new_page); From 419d8c96dbfa558f00e623023917d0a5afc46129 Mon Sep 17 00:00:00 2001 From: Michel Lespinasse Date: Thu, 10 Feb 2011 15:01:33 -0800 Subject: [PATCH 199/277] mlock: do not munlock pages in __do_fault() If the page is going to be written to, __do_page needs to break COW. However, the old page (before breaking COW) was never mapped mapped into the current pte (__do_fault is only called when the pte is not present), so vmscan can't have marked the old page as PageMlocked due to being mapped in __do_fault's VMA. Therefore, __do_fault() does not need to worry about clearing PageMlocked() on the old page. Signed-off-by: Michel Lespinasse Reviewed-by: KAMEZAWA Hiroyuki Acked-by: Hugh Dickins Cc: Rik van Riel Cc: Andrea Arcangeli Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memory.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/mm/memory.c b/mm/memory.c index 32df03cf13a5..8e8c18324863 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3051,12 +3051,6 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma, goto out; } charged = 1; - /* - * Don't let another task, with possibly unlocked vma, - * keep the mlocked page. - */ - if (vma->vm_flags & VM_LOCKED) - clear_page_mlock(vmf.page); copy_user_highpage(page, vmf.page, address, vma); __SetPageUptodate(page); } else { From f0fdc5e8e6f579310458aef43d1610a0bb5e81a4 Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Thu, 10 Feb 2011 15:01:34 -0800 Subject: [PATCH 200/277] vmscan: fix zone shrinking exit when scan work is done Commit 3e7d34497067 ("mm: vmscan: reclaim order-0 and use compaction instead of lumpy reclaim") introduced an indefinite loop in shrink_zone(). It meant to break out of this loop when no pages had been reclaimed and not a single page was even scanned. The way it would detect the latter is by taking a snapshot of sc->nr_scanned at the beginning of the function and comparing it against the new sc->nr_scanned after the scan loop. But it would re-iterate without updating that snapshot, looping forever if sc->nr_scanned changed at least once since shrink_zone() was invoked. This is not the sole condition that would exit that loop, but it requires other processes to change the zone state, as the reclaimer that is stuck obviously can not anymore. This is only happening for higher-order allocations, where reclaim is run back to back with compaction. Signed-off-by: Johannes Weiner Reported-by: Michal Hocko Tested-by: Kent Overstreet Reported-by: Kent Overstreet Acked-by: Mel Gorman Cc: Andrea Arcangeli Cc: Rik van Riel Reviewed-by: Minchan Kim Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/vmscan.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 148c6e630df2..17497d0cd8b9 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1882,12 +1882,12 @@ static void shrink_zone(int priority, struct zone *zone, unsigned long nr[NR_LRU_LISTS]; unsigned long nr_to_scan; enum lru_list l; - unsigned long nr_reclaimed; + unsigned long nr_reclaimed, nr_scanned; unsigned long nr_to_reclaim = sc->nr_to_reclaim; - unsigned long nr_scanned = sc->nr_scanned; restart: nr_reclaimed = 0; + nr_scanned = sc->nr_scanned; get_scan_count(zone, sc, nr, priority); while (nr[LRU_INACTIVE_ANON] || nr[LRU_ACTIVE_FILE] || From 678ff896a37afdbca292c7846ec895463aed35a5 Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Thu, 10 Feb 2011 15:01:36 -0800 Subject: [PATCH 201/277] memcg: fix leak of accounting at failure path of hugepage collapsing mem_cgroup_uncharge_page() should be called in all failure cases after mem_cgroup_charge_newpage() is called in huge_memory.c::collapse_huge_page() [ 4209.076861] BUG: Bad page state in process khugepaged pfn:1e9800 [ 4209.077601] page:ffffea0006b14000 count:0 mapcount:0 mapping: (null) index:0x2800 [ 4209.078674] page flags: 0x40000000004000(head) [ 4209.079294] pc:ffff880214a30000 pc->flags:2146246697418756 pc->mem_cgroup:ffffc9000177a000 [ 4209.082177] (/A) [ 4209.082500] Pid: 31, comm: khugepaged Not tainted 2.6.38-rc3-mm1 #1 [ 4209.083412] Call Trace: [ 4209.083678] [] ? bad_page+0xe4/0x140 [ 4209.084240] [] ? free_pages_prepare+0xd6/0x120 [ 4209.084837] [] ? rwsem_down_failed_common+0xbd/0x150 [ 4209.085509] [] ? __free_pages_ok+0x32/0xe0 [ 4209.086110] [] ? free_compound_page+0x1b/0x20 [ 4209.086699] [] ? __put_compound_page+0x1c/0x30 [ 4209.087333] [] ? put_compound_page+0x4d/0x200 [ 4209.087935] [] ? put_page+0x45/0x50 [ 4209.097361] [] ? khugepaged+0x9e9/0x1430 [ 4209.098364] [] ? autoremove_wake_function+0x0/0x40 [ 4209.099121] [] ? khugepaged+0x0/0x1430 [ 4209.099780] [] ? kthread+0x96/0xa0 [ 4209.100452] [] ? kernel_thread_helper+0x4/0x10 [ 4209.101214] [] ? kthread+0x0/0xa0 [ 4209.101842] [] ? kernel_thread_helper+0x0/0x10 Signed-off-by: KAMEZAWA Hiroyuki Acked-by: Daisuke Nishimura Reviewed-by: Johannes Weiner Cc: Andrea Arcangeli Reviewed-by: Minchan Kim Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/huge_memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/huge_memory.c b/mm/huge_memory.c index b6c1ce3c53b5..e62ddb8f24b6 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -1852,7 +1852,6 @@ static void collapse_huge_page(struct mm_struct *mm, set_pmd_at(mm, address, pmd, _pmd); spin_unlock(&mm->page_table_lock); anon_vma_unlock(vma->anon_vma); - mem_cgroup_uncharge_page(new_page); goto out; } @@ -1898,6 +1897,7 @@ out_up_write: return; out: + mem_cgroup_uncharge_page(new_page); #ifdef CONFIG_NUMA put_page(new_page); #endif From 80d02d273641d515269c016d9e8da5882e4432e4 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Thu, 10 Feb 2011 15:01:37 -0800 Subject: [PATCH 202/277] drivers/w1/masters/omap_hdq.c: add missing clk_put This code makes two calls to clk_get, then test both return values and fails if either failed. The problem is that in the first inner if, where the first call to clk_get has failed, it don't know if the second call has failed as well. So it don't know whether clk_get should be called on the result of the second call. Of course, it would be possible to test that value again. A simpler solution is just to test the result of calling clk_get directly after each call. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @r@ position p1,p2; expression e; statement S; @@ e = clk_get@p1(...) ... if@p2 (IS_ERR(e)) S @@ expression e; statement S; identifier l; position r.p1, p2 != r.p2; @@ *e = clk_get@p1(...) ... when != clk_put(e) *if@p2 (...) { ... when != clk_put(e) * return ...; }// Signed-off-by: Julia Lawall Cc: Evgeniy Polyakov Acked-by: Tony Lindgren Acked-by: Amit Kucheria Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/w1/masters/omap_hdq.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c index 3a7e9ff8a746..38e96ab90945 100644 --- a/drivers/w1/masters/omap_hdq.c +++ b/drivers/w1/masters/omap_hdq.c @@ -593,19 +593,17 @@ static int __devinit omap_hdq_probe(struct platform_device *pdev) /* get interface & functional clock objects */ hdq_data->hdq_ick = clk_get(&pdev->dev, "ick"); - hdq_data->hdq_fck = clk_get(&pdev->dev, "fck"); + if (IS_ERR(hdq_data->hdq_ick)) { + dev_dbg(&pdev->dev, "Can't get HDQ ick clock object\n"); + ret = PTR_ERR(hdq_data->hdq_ick); + goto err_ick; + } - if (IS_ERR(hdq_data->hdq_ick) || IS_ERR(hdq_data->hdq_fck)) { - dev_dbg(&pdev->dev, "Can't get HDQ clock objects\n"); - if (IS_ERR(hdq_data->hdq_ick)) { - ret = PTR_ERR(hdq_data->hdq_ick); - goto err_clk; - } - if (IS_ERR(hdq_data->hdq_fck)) { - ret = PTR_ERR(hdq_data->hdq_fck); - clk_put(hdq_data->hdq_ick); - goto err_clk; - } + hdq_data->hdq_fck = clk_get(&pdev->dev, "fck"); + if (IS_ERR(hdq_data->hdq_fck)) { + dev_dbg(&pdev->dev, "Can't get HDQ fck clock object\n"); + ret = PTR_ERR(hdq_data->hdq_fck); + goto err_fck; } hdq_data->hdq_usecount = 0; @@ -665,10 +663,12 @@ err_fnclk: clk_disable(hdq_data->hdq_ick); err_intfclk: - clk_put(hdq_data->hdq_ick); clk_put(hdq_data->hdq_fck); -err_clk: +err_fck: + clk_put(hdq_data->hdq_ick); + +err_ick: iounmap(hdq_data->hdq_base); err_ioremap: From 2d55951368faa32ff098398c56780ebb6405a3d9 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sat, 12 Feb 2011 01:39:15 +0100 Subject: [PATCH 203/277] ACPI / ACPICA: Avoid crashing if _PRW is defined for the root object Some ACPI BIOSes define _PRW for the root object which causes acpi_setup_gpe_for_wake() to crash when trying to dereference the bogus device_node pointer. Avoid the crash by checking if wake_device is not the root object before attempting to set up the "implicit notify" mechanism for it. The problem was introduced by commit bba63a296ffab20e08d9e8252d2f0d99 (ACPICA: Implicit notify support) that added the wake_device argument to acpi_setup_gpe_for_wake(). Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpica/evxfgpe.c | 51 ++++++++++++++++++----------------- 1 file changed, 27 insertions(+), 24 deletions(-) diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c index e9562a7cb2f9..3b20a3401b64 100644 --- a/drivers/acpi/acpica/evxfgpe.c +++ b/drivers/acpi/acpica/evxfgpe.c @@ -212,37 +212,40 @@ acpi_setup_gpe_for_wake(acpi_handle wake_device, return_ACPI_STATUS(AE_BAD_PARAMETER); } - /* Validate wake_device is of type Device */ - - device_node = ACPI_CAST_PTR(struct acpi_namespace_node, wake_device); - if (device_node->type != ACPI_TYPE_DEVICE) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); /* Ensure that we have a valid GPE number */ gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); - if (gpe_event_info) { - /* - * If there is no method or handler for this GPE, then the - * wake_device will be notified whenever this GPE fires (aka - * "implicit notify") Note: The GPE is assumed to be - * level-triggered (for windows compatibility). - */ - if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == - ACPI_GPE_DISPATCH_NONE) { - gpe_event_info->flags = - (ACPI_GPE_DISPATCH_NOTIFY | - ACPI_GPE_LEVEL_TRIGGERED); - gpe_event_info->dispatch.device_node = device_node; - } - - gpe_event_info->flags |= ACPI_GPE_CAN_WAKE; - status = AE_OK; + if (!gpe_event_info) { + goto unlock_and_exit; } + /* + * If there is no method or handler for this GPE, then the + * wake_device will be notified whenever this GPE fires (aka + * "implicit notify") Note: The GPE is assumed to be + * level-triggered (for windows compatibility). + */ + if (((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == + ACPI_GPE_DISPATCH_NONE) && (wake_device != ACPI_ROOT_OBJECT)) { + + /* Validate wake_device is of type Device */ + + device_node = ACPI_CAST_PTR(struct acpi_namespace_node, + wake_device); + if (device_node->type != ACPI_TYPE_DEVICE) { + goto unlock_and_exit; + } + gpe_event_info->flags = (ACPI_GPE_DISPATCH_NOTIFY | + ACPI_GPE_LEVEL_TRIGGERED); + gpe_event_info->dispatch.device_node = device_node; + } + + gpe_event_info->flags |= ACPI_GPE_CAN_WAKE; + status = AE_OK; + + unlock_and_exit: acpi_os_release_lock(acpi_gbl_gpe_lock, flags); return_ACPI_STATUS(status); } From 2a5d24286e8bdafdc272b37ec5bdd9e977b3767c Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sat, 12 Feb 2011 01:39:53 +0100 Subject: [PATCH 204/277] ACPI / Wakeup: Enable button GPEs unconditionally during initialization MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit 9630bdd (ACPI: Use GPE reference counting to support shared GPEs) introduced a suspend regression where boxes resume immediately after being suspended due to the lid or sleep button wakeup status not being cleared properly. This happens if the GPEs corresponding to those devices are not enabled all the time, which apparently is expected by some BIOSes. To fix this problem, enable button and lid GPEs unconditionally during initialization and keep them enabled all the time, regardless of whether or not the ACPI button driver is used. References: https://bugzilla.kernel.org/show_bug.cgi?id=27372 Reported-and-tested-by: Ferenc Wágner Cc: stable@kernel.org Signed-off-by: Rafael J. Wysocki --- drivers/acpi/wakeup.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/acpi/wakeup.c b/drivers/acpi/wakeup.c index ed6501452507..7bfbe40bc43b 100644 --- a/drivers/acpi/wakeup.c +++ b/drivers/acpi/wakeup.c @@ -86,8 +86,12 @@ int __init acpi_wakeup_device_init(void) struct acpi_device *dev = container_of(node, struct acpi_device, wakeup_list); - if (device_can_wakeup(&dev->dev)) + if (device_can_wakeup(&dev->dev)) { + /* Button GPEs are supposed to be always enabled. */ + acpi_enable_gpe(dev->wakeup.gpe_device, + dev->wakeup.gpe_number); device_set_wakeup_enable(&dev->dev, true); + } } mutex_unlock(&acpi_device_lock); return 0; From ed764e7ca042dbf4cc1c7f4e12cd842c7789f133 Mon Sep 17 00:00:00 2001 From: Michael Karcher Date: Sat, 12 Feb 2011 01:40:16 +0100 Subject: [PATCH 205/277] ACPI / Video: Probe for output switch method when searching video devices. This patch reverts one hunk of 677bd810eedce61edf15452491781ff046b92edc "ACPI video: remove output switching control", namely the removal of probing for _DOS/_DOD when searching for video devices. This is needed on some Fujitsu Laptops (at least S7110, P8010) for the ACPI backlight interface to work, as an these machines, neither ROM nor posting methods are available, and after removal of output switching, none of the caps triggers, which prevents the backlight search from being entered. Tested on a Fujitsu Lifebook S7110 and Fujitsu Lifebook P8010. This probably fixes https://bugzilla.kernel.org/show_bug.cgi?id=27312 for the people who have no entry in /sys/class/backlight. This is the complete list of public (starting with "_") methods implemented on the S7110, BIOS rev 1.34: \_SB_.PCI0.GFX0._ADR \_SB_.PCI0.GFX0._DOS \_SB_.PCI0.GFX0._DOD \_SB_.PCI0.GFX0.CRT._ADR \_SB_.PCI0.GFX0.CRT._DCS \_SB_.PCI0.GFX0.CRT._DGS \_SB_.PCI0.GFX0.CRT._DSS \_SB_.PCI0.GFX0.LCD._ADR \_SB_.PCI0.GFX0.LCD._BCL \_SB_.PCI0.GFX0.LCD._BCM \_SB_.PCI0.GFX0.LCD._BQC \_SB_.PCI0.GFX0.LCD._DCS \_SB_.PCI0.GFX0.LCD._DGS \_SB_.PCI0.GFX0.LCD._DSS \_SB_.PCI0.GFX0.LCD._PS0 \_SB_.PCI0.GFX0.LCD._PS3 \_SB_.PCI0.GFX0.TV._ADR \_SB_.PCI0.GFX0.TV._DCS \_SB_.PCI0.GFX0.TV._DGS \_SB_.PCI0.GFX0.TV._DSS \_SB_.PCI0.GFX0.DVI._ADR \_SB_.PCI0.GFX0.DVI._DCS \_SB_.PCI0.GFX0.DVI._DGS \_SB_.PCI0.GFX0.DVI._DSS Signed-off-by: Michael Karcher Acked-by: Zhang Rui Signed-off-by: Rafael J. Wysocki --- drivers/acpi/video_detect.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index 42d3d72dae85..5af3479714f6 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -82,6 +82,11 @@ long acpi_is_video_device(struct acpi_device *device) if (!device) return 0; + /* Is this device able to support video switching ? */ + if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOD", &h_dummy)) || + ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOS", &h_dummy))) + video_caps |= ACPI_VIDEO_OUTPUT_SWITCHING; + /* Is this device able to retrieve a video ROM ? */ if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_ROM", &h_dummy))) video_caps |= ACPI_VIDEO_ROM_AVAILABLE; From d91309f69b7bdb64aeb30106fde8d18c5dd354b5 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Fri, 11 Feb 2011 22:07:46 +0100 Subject: [PATCH 206/277] x86: Fix text_poke_smp_batch() deadlock Fix this deadlock - we are already holding the mutex: ======================================================= [ INFO: possible circular locking dependency detected ] 2.6.38-rc4-test+ #1 ------------------------------------------------------- bash/1850 is trying to acquire lock: (text_mutex){+.+.+.}, at: [] return_to_handler+0x0/0x2f but task is already holding lock: (smp_alt){+.+...}, at: [] return_to_handler+0x0/0x2f which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (smp_alt){+.+...}: [] lock_acquire+0xcd/0xf8 [] __mutex_lock_common+0x4c/0x339 [] mutex_lock_nested+0x3e/0x43 [] alternatives_smp_switch+0x77/0x1d8 [] do_boot_cpu+0xd7/0x762 [] native_cpu_up+0xe6/0x16a [] _cpu_up+0x9d/0xee [] cpu_up+0xd3/0xe7 [] kernel_init+0xe8/0x20a [] kernel_thread_helper+0x4/0x10 -> #1 (cpu_hotplug.lock){+.+.+.}: [] lock_acquire+0xcd/0xf8 [] __mutex_lock_common+0x4c/0x339 [] mutex_lock_nested+0x3e/0x43 [] get_online_cpus+0x41/0x55 [] stop_machine+0x1e/0x3e [] text_poke_smp_batch+0x3a/0x3c [] arch_optimize_kprobes+0x10d/0x11c [] kprobe_optimizer+0x152/0x222 [] process_one_work+0x1d3/0x335 [] worker_thread+0x104/0x1a4 [] kthread+0x9d/0xa5 [] kernel_thread_helper+0x4/0x10 -> #0 (text_mutex){+.+.+.}: other info that might help us debug this: 6 locks held by bash/1850: #0: (&buffer->mutex){+.+.+.}, at: [] return_to_handler+0x0/0x2f #1: (s_active#75){.+.+.+}, at: [] return_to_handler+0x0/0x2f #2: (x86_cpu_hotplug_driver_mutex){+.+.+.}, at: [] return_to_handler+0x0/0x2f #3: (cpu_add_remove_lock){+.+.+.}, at: [] return_to_handler+0x0/0x2f #4: (cpu_hotplug.lock){+.+.+.}, at: [] return_to_handler+0x0/0x2f #5: (smp_alt){+.+...}, at: [] return_to_handler+0x0/0x2f stack backtrace: Pid: 1850, comm: bash Not tainted 2.6.38-rc4-test+ #1 Call Trace: [] print_circular_bug+0xa8/0xb7 [] mutex_lock_nested+0x3e/0x43 [] alternatives_smp_unlock+0x3d/0x93 [] alternatives_smp_switch+0x198/0x1d8 [] native_cpu_die+0x65/0x95 [] _cpu_down+0x13e/0x202 [] sysfs_write_file+0x108/0x144 [] vfs_write+0xac/0xff [] sys_write+0x4a/0x6e Reported-by: Steven Rostedt Tested-by: Steven Rostedt Signed-off-by: Peter Zijlstra Cc: mathieu.desnoyers@efficios.com Cc: rusty@rustcorp.com.au Cc: ananth@in.ibm.com Cc: masami.hiramatsu.pt@hitachi.com Cc: fweisbec@gmail.com Cc: jbeulich@novell.com Cc: jbaron@redhat.com Cc: mhiramat@redhat.com LKML-Reference: <1297458466.5226.93.camel@laptop> Signed-off-by: Ingo Molnar --- arch/x86/kernel/alternative.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c index 123608531c8f..7038b95d363f 100644 --- a/arch/x86/kernel/alternative.c +++ b/arch/x86/kernel/alternative.c @@ -671,7 +671,7 @@ void __kprobes text_poke_smp_batch(struct text_poke_param *params, int n) atomic_set(&stop_machine_first, 1); wrote_text = 0; - stop_machine(stop_machine_text_poke, (void *)&tpp, NULL); + __stop_machine(stop_machine_text_poke, (void *)&tpp, NULL); } #if defined(CONFIG_DYNAMIC_FTRACE) || defined(HAVE_JUMP_LABEL) From 557218e2d662574bc58d840fe116c7fd8d57aed8 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Sat, 12 Feb 2011 01:45:55 -0700 Subject: [PATCH 207/277] MAINTAINERS: Add entry for GPIO subsystem I'll probably regret this.... Signed-off-by: Grant Likely --- MAINTAINERS | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 1af022e63668..2f61f678249a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2768,6 +2768,15 @@ F: Documentation/isdn/README.gigaset F: drivers/isdn/gigaset/ F: include/linux/gigaset_dev.h +GPIO SUBSYSTEM +M: Grant Likely +L: linux-kernel@vger.kernel.org +S: Maintained +T: git git://git.secretlab.ca/git/linux-2.6.git +F: Documentation/gpio/gpio.txt +F: drivers/gpio/ +F: include/linux/gpio* + GRETH 10/100/1G Ethernet MAC device driver M: Kristoffer Glembo L: netdev@vger.kernel.org From 5117348dea5e3ecbb785cfa1271386fb49332b41 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 12 Feb 2011 11:51:03 +0100 Subject: [PATCH 208/277] x86: Readd missing irq_to_desc() in fixup_irq() commit a3c08e5d(x86: Convert irq_chip access to new functions) accidentally zapped desc = irq_to_desc(irq); in the vector loop. So we lock some random irq descriptor. Add it back. Signed-off-by: Thomas Gleixner Cc: # .37 --- arch/x86/kernel/irq.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index 52945da52a94..387b6a0c9e81 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -367,7 +367,8 @@ void fixup_irqs(void) if (irr & (1 << (vector % 32))) { irq = __this_cpu_read(vector_irq[vector]); - data = irq_get_irq_data(irq); + desc = irq_to_desc(irq); + data = &desc->irq_data; raw_spin_lock(&desc->lock); if (data->chip->irq_retrigger) data->chip->irq_retrigger(data); From f590308536db432e4747f562b29e5858123938e9 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Fri, 11 Feb 2011 19:21:25 -0800 Subject: [PATCH 209/277] timer debug: Hide kernel addresses via %pK in /proc/timer_list In the continuing effort to avoid kernel addresses leaking to unprivileged users, this patch switches to %pK for /proc/timer_list reporting. Signed-off-by: Kees Cook Cc: John Stultz Cc: Dan Rosenberg Cc: Eugene Teo Cc: Linus Torvalds LKML-Reference: <20110212032125.GA23571@outflux.net> Signed-off-by: Ingo Molnar --- kernel/time/timer_list.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c index 32a19f9397fc..3258455549f4 100644 --- a/kernel/time/timer_list.c +++ b/kernel/time/timer_list.c @@ -41,7 +41,7 @@ static void print_name_offset(struct seq_file *m, void *sym) char symname[KSYM_NAME_LEN]; if (lookup_symbol_name((unsigned long)sym, symname) < 0) - SEQ_printf(m, "<%p>", sym); + SEQ_printf(m, "<%pK>", sym); else SEQ_printf(m, "%s", symname); } @@ -112,7 +112,7 @@ next_one: static void print_base(struct seq_file *m, struct hrtimer_clock_base *base, u64 now) { - SEQ_printf(m, " .base: %p\n", base); + SEQ_printf(m, " .base: %pK\n", base); SEQ_printf(m, " .index: %d\n", base->index); SEQ_printf(m, " .resolution: %Lu nsecs\n", From 2892c15ddda6a76dc10b7499e56c0f3b892e5a69 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Sat, 12 Feb 2011 08:12:18 -0500 Subject: [PATCH 210/277] ext4: make grpinfo slab cache names static In 2.6.37 I was running into oopses with repeated module loads & unloads. I tracked this down to: fb1813f4 ext4: use dedicated slab caches for group_info structures (this was in addition to the features advert unload problem) The kstrdup & subsequent kfree of the cache name was causing a double free. In slub, at least, if I read it right it allocates & frees the name itself, slab seems to do something different... so in slub I think we were leaking -our- cachep->name, and double freeing the one allocated by slub. After getting lost in slab/slub/slob a bit, I just looked at other sized-caches that get allocated. jbd2, biovec, sgpool all do it more or less the way jbd2 does. Below patch follows the jbd2 method of dynamically allocating a cache at mount time from a list of static names. (This might also possibly fix a race creating the caches with parallel mounts running). [Folded in a fix from Dan Carpenter which fixed an off-by-one error in the original patch] Cc: stable@kernel.org Signed-off-by: Eric Sandeen Signed-off-by: "Theodore Ts'o" --- fs/ext4/mballoc.c | 100 +++++++++++++++++++++++++++------------------- 1 file changed, 60 insertions(+), 40 deletions(-) diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 851f49b2f9d2..d1fe09aea73d 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -342,10 +342,15 @@ static struct kmem_cache *ext4_free_ext_cachep; /* We create slab caches for groupinfo data structures based on the * superblock block size. There will be one per mounted filesystem for * each unique s_blocksize_bits */ -#define NR_GRPINFO_CACHES \ - (EXT4_MAX_BLOCK_LOG_SIZE - EXT4_MIN_BLOCK_LOG_SIZE + 1) +#define NR_GRPINFO_CACHES 8 static struct kmem_cache *ext4_groupinfo_caches[NR_GRPINFO_CACHES]; +static const char *ext4_groupinfo_slab_names[NR_GRPINFO_CACHES] = { + "ext4_groupinfo_1k", "ext4_groupinfo_2k", "ext4_groupinfo_4k", + "ext4_groupinfo_8k", "ext4_groupinfo_16k", "ext4_groupinfo_32k", + "ext4_groupinfo_64k", "ext4_groupinfo_128k" +}; + static void ext4_mb_generate_from_pa(struct super_block *sb, void *bitmap, ext4_group_t group); static void ext4_mb_generate_from_freelist(struct super_block *sb, void *bitmap, @@ -2414,6 +2419,55 @@ err_freesgi: return -ENOMEM; } +static void ext4_groupinfo_destroy_slabs(void) +{ + int i; + + for (i = 0; i < NR_GRPINFO_CACHES; i++) { + if (ext4_groupinfo_caches[i]) + kmem_cache_destroy(ext4_groupinfo_caches[i]); + ext4_groupinfo_caches[i] = NULL; + } +} + +static int ext4_groupinfo_create_slab(size_t size) +{ + static DEFINE_MUTEX(ext4_grpinfo_slab_create_mutex); + int slab_size; + int blocksize_bits = order_base_2(size); + int cache_index = blocksize_bits - EXT4_MIN_BLOCK_LOG_SIZE; + struct kmem_cache *cachep; + + if (cache_index >= NR_GRPINFO_CACHES) + return -EINVAL; + + if (unlikely(cache_index < 0)) + cache_index = 0; + + mutex_lock(&ext4_grpinfo_slab_create_mutex); + if (ext4_groupinfo_caches[cache_index]) { + mutex_unlock(&ext4_grpinfo_slab_create_mutex); + return 0; /* Already created */ + } + + slab_size = offsetof(struct ext4_group_info, + bb_counters[blocksize_bits + 2]); + + cachep = kmem_cache_create(ext4_groupinfo_slab_names[cache_index], + slab_size, 0, SLAB_RECLAIM_ACCOUNT, + NULL); + + mutex_unlock(&ext4_grpinfo_slab_create_mutex); + if (!cachep) { + printk(KERN_EMERG "EXT4: no memory for groupinfo slab cache\n"); + return -ENOMEM; + } + + ext4_groupinfo_caches[cache_index] = cachep; + + return 0; +} + int ext4_mb_init(struct super_block *sb, int needs_recovery) { struct ext4_sb_info *sbi = EXT4_SB(sb); @@ -2421,9 +2475,6 @@ int ext4_mb_init(struct super_block *sb, int needs_recovery) unsigned offset; unsigned max; int ret; - int cache_index; - struct kmem_cache *cachep; - char *namep = NULL; i = (sb->s_blocksize_bits + 2) * sizeof(*sbi->s_mb_offsets); @@ -2440,30 +2491,9 @@ int ext4_mb_init(struct super_block *sb, int needs_recovery) goto out; } - cache_index = sb->s_blocksize_bits - EXT4_MIN_BLOCK_LOG_SIZE; - cachep = ext4_groupinfo_caches[cache_index]; - if (!cachep) { - char name[32]; - int len = offsetof(struct ext4_group_info, - bb_counters[sb->s_blocksize_bits + 2]); - - sprintf(name, "ext4_groupinfo_%d", sb->s_blocksize_bits); - namep = kstrdup(name, GFP_KERNEL); - if (!namep) { - ret = -ENOMEM; - goto out; - } - - /* Need to free the kmem_cache_name() when we - * destroy the slab */ - cachep = kmem_cache_create(namep, len, 0, - SLAB_RECLAIM_ACCOUNT, NULL); - if (!cachep) { - ret = -ENOMEM; - goto out; - } - ext4_groupinfo_caches[cache_index] = cachep; - } + ret = ext4_groupinfo_create_slab(sb->s_blocksize); + if (ret < 0) + goto out; /* order 0 is regular bitmap */ sbi->s_mb_maxs[0] = sb->s_blocksize << 3; @@ -2520,7 +2550,6 @@ out: if (ret) { kfree(sbi->s_mb_offsets); kfree(sbi->s_mb_maxs); - kfree(namep); } return ret; } @@ -2734,7 +2763,6 @@ int __init ext4_init_mballoc(void) void ext4_exit_mballoc(void) { - int i; /* * Wait for completion of call_rcu()'s on ext4_pspace_cachep * before destroying the slab cache. @@ -2743,15 +2771,7 @@ void ext4_exit_mballoc(void) kmem_cache_destroy(ext4_pspace_cachep); kmem_cache_destroy(ext4_ac_cachep); kmem_cache_destroy(ext4_free_ext_cachep); - - for (i = 0; i < NR_GRPINFO_CACHES; i++) { - struct kmem_cache *cachep = ext4_groupinfo_caches[i]; - if (cachep) { - char *name = (char *)kmem_cache_name(cachep); - kmem_cache_destroy(cachep); - kfree(name); - } - } + ext4_groupinfo_destroy_slabs(); ext4_remove_debugfs_entry(); } From e9e3bcecf44c04b9e6b505fd8e2eb9cea58fb94d Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Sat, 12 Feb 2011 08:17:34 -0500 Subject: [PATCH 211/277] ext4: serialize unaligned asynchronous DIO ext4 has a data corruption case when doing non-block-aligned asynchronous direct IO into a sparse file, as demonstrated by xfstest 240. The root cause is that while ext4 preallocates space in the hole, mappings of that space still look "new" and dio_zero_block() will zero out the unwritten portions. When more than one AIO thread is going, they both find this "new" block and race to zero out their portion; this is uncoordinated and causes data corruption. Dave Chinner fixed this for xfs by simply serializing all unaligned asynchronous direct IO. I've done the same here. The difference is that we only wait on conversions, not all IO. This is a very big hammer, and I'm not very pleased with stuffing this into ext4_file_write(). But since ext4 is DIO_LOCKING, we need to serialize it at this high level. I tried to move this into ext4_ext_direct_IO, but by then we have the i_mutex already, and we will wait on the work queue to do conversions - which must also take the i_mutex. So that won't work. This was originally exposed by qemu-kvm installing to a raw disk image with a normal sector-63 alignment. I've tested a backport of this patch with qemu, and it does avoid the corruption. It is also quite a lot slower (14 min for package installs, vs. 8 min for well-aligned) but I'll take slow correctness over fast corruption any day. Mingming suggested that we can track outstanding conversions, and wait on those so that non-sparse files won't be affected, and I've implemented that here; unaligned AIO to nonsparse files won't take a perf hit. [tytso@mit.edu: Keep the mutex as a hashed array instead of bloating the ext4 inode] [tytso@mit.edu: Fix up namespace issues so that global variables are protected with an "ext4_" prefix.] Signed-off-by: Eric Sandeen Signed-off-by: "Theodore Ts'o" --- fs/ext4/ext4.h | 10 ++++++++ fs/ext4/extents.c | 10 ++++---- fs/ext4/file.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++- fs/ext4/page-io.c | 25 ++++++++++---------- fs/ext4/super.c | 13 +++++++++- 5 files changed, 100 insertions(+), 18 deletions(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 0c8d97b56f34..3aa0b72b3b94 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -848,6 +848,7 @@ struct ext4_inode_info { atomic_t i_ioend_count; /* Number of outstanding io_end structs */ /* current io_end structure for async DIO write*/ ext4_io_end_t *cur_aio_dio; + atomic_t i_aiodio_unwritten; /* Nr. of inflight conversions pending */ spinlock_t i_block_reservation_lock; @@ -2119,6 +2120,15 @@ static inline void set_bitmap_uptodate(struct buffer_head *bh) #define in_range(b, first, len) ((b) >= (first) && (b) <= (first) + (len) - 1) +/* For ioend & aio unwritten conversion wait queues */ +#define EXT4_WQ_HASH_SZ 37 +#define ext4_ioend_wq(v) (&ext4__ioend_wq[((unsigned long)(v)) %\ + EXT4_WQ_HASH_SZ]) +#define ext4_aio_mutex(v) (&ext4__aio_mutex[((unsigned long)(v)) %\ + EXT4_WQ_HASH_SZ]) +extern wait_queue_head_t ext4__ioend_wq[EXT4_WQ_HASH_SZ]; +extern struct mutex ext4__aio_mutex[EXT4_WQ_HASH_SZ]; + #endif /* __KERNEL__ */ #endif /* _EXT4_H */ diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 63a75810b7c3..ccce8a7e94ed 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -3174,9 +3174,10 @@ ext4_ext_handle_uninitialized_extents(handle_t *handle, struct inode *inode, * that this IO needs to convertion to written when IO is * completed */ - if (io) + if (io && !(io->flag & EXT4_IO_END_UNWRITTEN)) { io->flag = EXT4_IO_END_UNWRITTEN; - else + atomic_inc(&EXT4_I(inode)->i_aiodio_unwritten); + } else ext4_set_inode_state(inode, EXT4_STATE_DIO_UNWRITTEN); if (ext4_should_dioread_nolock(inode)) map->m_flags |= EXT4_MAP_UNINIT; @@ -3463,9 +3464,10 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode, * that we need to perform convertion when IO is done. */ if ((flags & EXT4_GET_BLOCKS_PRE_IO)) { - if (io) + if (io && !(io->flag & EXT4_IO_END_UNWRITTEN)) { io->flag = EXT4_IO_END_UNWRITTEN; - else + atomic_inc(&EXT4_I(inode)->i_aiodio_unwritten); + } else ext4_set_inode_state(inode, EXT4_STATE_DIO_UNWRITTEN); } diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 2e8322c8aa88..7b80d543b89e 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -55,11 +55,47 @@ static int ext4_release_file(struct inode *inode, struct file *filp) return 0; } +static void ext4_aiodio_wait(struct inode *inode) +{ + wait_queue_head_t *wq = ext4_ioend_wq(inode); + + wait_event(*wq, (atomic_read(&EXT4_I(inode)->i_aiodio_unwritten) == 0)); +} + +/* + * This tests whether the IO in question is block-aligned or not. + * Ext4 utilizes unwritten extents when hole-filling during direct IO, and they + * are converted to written only after the IO is complete. Until they are + * mapped, these blocks appear as holes, so dio_zero_block() will assume that + * it needs to zero out portions of the start and/or end block. If 2 AIO + * threads are at work on the same unwritten block, they must be synchronized + * or one thread will zero the other's data, causing corruption. + */ +static int +ext4_unaligned_aio(struct inode *inode, const struct iovec *iov, + unsigned long nr_segs, loff_t pos) +{ + struct super_block *sb = inode->i_sb; + int blockmask = sb->s_blocksize - 1; + size_t count = iov_length(iov, nr_segs); + loff_t final_size = pos + count; + + if (pos >= inode->i_size) + return 0; + + if ((pos & blockmask) || (final_size & blockmask)) + return 1; + + return 0; +} + static ssize_t ext4_file_write(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, loff_t pos) { struct inode *inode = iocb->ki_filp->f_path.dentry->d_inode; + int unaligned_aio = 0; + int ret; /* * If we have encountered a bitmap-format file, the size limit @@ -78,9 +114,31 @@ ext4_file_write(struct kiocb *iocb, const struct iovec *iov, nr_segs = iov_shorten((struct iovec *)iov, nr_segs, sbi->s_bitmap_maxbytes - pos); } + } else if (unlikely((iocb->ki_filp->f_flags & O_DIRECT) && + !is_sync_kiocb(iocb))) { + unaligned_aio = ext4_unaligned_aio(inode, iov, nr_segs, pos); } - return generic_file_aio_write(iocb, iov, nr_segs, pos); + /* Unaligned direct AIO must be serialized; see comment above */ + if (unaligned_aio) { + static unsigned long unaligned_warn_time; + + /* Warn about this once per day */ + if (printk_timed_ratelimit(&unaligned_warn_time, 60*60*24*HZ)) + ext4_msg(inode->i_sb, KERN_WARNING, + "Unaligned AIO/DIO on inode %ld by %s; " + "performance will be poor.", + inode->i_ino, current->comm); + mutex_lock(ext4_aio_mutex(inode)); + ext4_aiodio_wait(inode); + } + + ret = generic_file_aio_write(iocb, iov, nr_segs, pos); + + if (unaligned_aio) + mutex_unlock(ext4_aio_mutex(inode)); + + return ret; } static const struct vm_operations_struct ext4_file_vm_ops = { diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c index 4e9b0a242f4c..955cc309142f 100644 --- a/fs/ext4/page-io.c +++ b/fs/ext4/page-io.c @@ -32,14 +32,8 @@ static struct kmem_cache *io_page_cachep, *io_end_cachep; -#define WQ_HASH_SZ 37 -#define to_ioend_wq(v) (&ioend_wq[((unsigned long)v) % WQ_HASH_SZ]) -static wait_queue_head_t ioend_wq[WQ_HASH_SZ]; - int __init ext4_init_pageio(void) { - int i; - io_page_cachep = KMEM_CACHE(ext4_io_page, SLAB_RECLAIM_ACCOUNT); if (io_page_cachep == NULL) return -ENOMEM; @@ -48,9 +42,6 @@ int __init ext4_init_pageio(void) kmem_cache_destroy(io_page_cachep); return -ENOMEM; } - for (i = 0; i < WQ_HASH_SZ; i++) - init_waitqueue_head(&ioend_wq[i]); - return 0; } @@ -62,7 +53,7 @@ void ext4_exit_pageio(void) void ext4_ioend_wait(struct inode *inode) { - wait_queue_head_t *wq = to_ioend_wq(inode); + wait_queue_head_t *wq = ext4_ioend_wq(inode); wait_event(*wq, (atomic_read(&EXT4_I(inode)->i_ioend_count) == 0)); } @@ -87,7 +78,7 @@ void ext4_free_io_end(ext4_io_end_t *io) for (i = 0; i < io->num_io_pages; i++) put_io_page(io->pages[i]); io->num_io_pages = 0; - wq = to_ioend_wq(io->inode); + wq = ext4_ioend_wq(io->inode); if (atomic_dec_and_test(&EXT4_I(io->inode)->i_ioend_count) && waitqueue_active(wq)) wake_up_all(wq); @@ -102,6 +93,7 @@ int ext4_end_io_nolock(ext4_io_end_t *io) struct inode *inode = io->inode; loff_t offset = io->offset; ssize_t size = io->size; + wait_queue_head_t *wq; int ret = 0; ext4_debug("ext4_end_io_nolock: io 0x%p from inode %lu,list->next 0x%p," @@ -126,7 +118,16 @@ int ext4_end_io_nolock(ext4_io_end_t *io) if (io->iocb) aio_complete(io->iocb, io->result, 0); /* clear the DIO AIO unwritten flag */ - io->flag &= ~EXT4_IO_END_UNWRITTEN; + if (io->flag & EXT4_IO_END_UNWRITTEN) { + io->flag &= ~EXT4_IO_END_UNWRITTEN; + /* Wake up anyone waiting on unwritten extent conversion */ + wq = ext4_ioend_wq(io->inode); + if (atomic_dec_and_test(&EXT4_I(inode)->i_aiodio_unwritten) && + waitqueue_active(wq)) { + wake_up_all(wq); + } + } + return ret; } diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 86b05486dc63..f6a318f836b2 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -833,6 +833,7 @@ static struct inode *ext4_alloc_inode(struct super_block *sb) ei->i_sync_tid = 0; ei->i_datasync_tid = 0; atomic_set(&ei->i_ioend_count, 0); + atomic_set(&ei->i_aiodio_unwritten, 0); return &ei->vfs_inode; } @@ -4800,11 +4801,21 @@ static void ext4_exit_feat_adverts(void) kfree(ext4_feat); } +/* Shared across all ext4 file systems */ +wait_queue_head_t ext4__ioend_wq[EXT4_WQ_HASH_SZ]; +struct mutex ext4__aio_mutex[EXT4_WQ_HASH_SZ]; + static int __init ext4_init_fs(void) { - int err; + int i, err; ext4_check_flag_values(); + + for (i = 0; i < EXT4_WQ_HASH_SZ; i++) { + mutex_init(&ext4__aio_mutex[i]); + init_waitqueue_head(&ext4__ioend_wq[i]); + } + err = ext4_init_pageio(); if (err) return err; From e44718318004a5618d1dfe2d080e2862532d8e5f Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Sat, 12 Feb 2011 08:18:24 -0500 Subject: [PATCH 212/277] jbd2: call __jbd2_log_start_commit with j_state_lock write locked On an SMP ARM system running ext4, I've received a report that the first J_ASSERT in jbd2_journal_commit_transaction has been triggering: J_ASSERT(journal->j_running_transaction != NULL); While investigating possible causes for this problem, I noticed that __jbd2_log_start_commit() is getting called with j_state_lock only read-locked, in spite of the fact that it's possible for it might j_commit_request. Fix this by grabbing the necessary information so we can test to see if we need to start a new transaction before dropping the read lock, and then calling jbd2_log_start_commit() which will grab the write lock. Signed-off-by: "Theodore Ts'o" --- fs/jbd2/journal.c | 9 +++++++-- fs/jbd2/transaction.c | 21 ++++++++++++++------- 2 files changed, 21 insertions(+), 9 deletions(-) diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index 9e4686900f18..97e73469b2c4 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -473,7 +473,8 @@ int __jbd2_log_space_left(journal_t *journal) } /* - * Called under j_state_lock. Returns true if a transaction commit was started. + * Called with j_state_lock locked for writing. + * Returns true if a transaction commit was started. */ int __jbd2_log_start_commit(journal_t *journal, tid_t target) { @@ -520,11 +521,13 @@ int jbd2_journal_force_commit_nested(journal_t *journal) { transaction_t *transaction = NULL; tid_t tid; + int need_to_start = 0; read_lock(&journal->j_state_lock); if (journal->j_running_transaction && !current->journal_info) { transaction = journal->j_running_transaction; - __jbd2_log_start_commit(journal, transaction->t_tid); + if (!tid_geq(journal->j_commit_request, transaction->t_tid)) + need_to_start = 1; } else if (journal->j_committing_transaction) transaction = journal->j_committing_transaction; @@ -535,6 +538,8 @@ int jbd2_journal_force_commit_nested(journal_t *journal) tid = transaction->t_tid; read_unlock(&journal->j_state_lock); + if (need_to_start) + jbd2_log_start_commit(journal, tid); jbd2_log_wait_commit(journal, tid); return 1; } diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c index faad2bd787c7..1d1191050f99 100644 --- a/fs/jbd2/transaction.c +++ b/fs/jbd2/transaction.c @@ -117,10 +117,10 @@ static inline void update_t_max_wait(transaction_t *transaction) static int start_this_handle(journal_t *journal, handle_t *handle, int gfp_mask) { - transaction_t *transaction; - int needed; - int nblocks = handle->h_buffer_credits; - transaction_t *new_transaction = NULL; + transaction_t *transaction, *new_transaction = NULL; + tid_t tid; + int needed, need_to_start; + int nblocks = handle->h_buffer_credits; if (nblocks > journal->j_max_transaction_buffers) { printk(KERN_ERR "JBD: %s wants too many credits (%d > %d)\n", @@ -222,8 +222,11 @@ repeat: atomic_sub(nblocks, &transaction->t_outstanding_credits); prepare_to_wait(&journal->j_wait_transaction_locked, &wait, TASK_UNINTERRUPTIBLE); - __jbd2_log_start_commit(journal, transaction->t_tid); + tid = transaction->t_tid; + need_to_start = !tid_geq(journal->j_commit_request, tid); read_unlock(&journal->j_state_lock); + if (need_to_start) + jbd2_log_start_commit(journal, tid); schedule(); finish_wait(&journal->j_wait_transaction_locked, &wait); goto repeat; @@ -442,7 +445,8 @@ int jbd2__journal_restart(handle_t *handle, int nblocks, int gfp_mask) { transaction_t *transaction = handle->h_transaction; journal_t *journal = transaction->t_journal; - int ret; + tid_t tid; + int need_to_start, ret; /* If we've had an abort of any type, don't even think about * actually doing the restart! */ @@ -465,8 +469,11 @@ int jbd2__journal_restart(handle_t *handle, int nblocks, int gfp_mask) spin_unlock(&transaction->t_handle_lock); jbd_debug(2, "restarting handle %p\n", handle); - __jbd2_log_start_commit(journal, transaction->t_tid); + tid = transaction->t_tid; + need_to_start = !tid_geq(journal->j_commit_request, tid); read_unlock(&journal->j_state_lock); + if (need_to_start) + jbd2_log_start_commit(journal, tid); lock_map_release(&handle->h_lockdep_map); handle->h_buffer_credits = nblocks; From a0dc00b430b7f515904aa6dd62296b577e94c7aa Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Sat, 12 Feb 2011 01:48:14 -0700 Subject: [PATCH 213/277] MAINTAINERS: Add entry for GPIO subsystem I'll probably regret this.... Signed-off-by: Grant Likely Signed-off-by: Linus Torvalds --- MAINTAINERS | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 531c5cf150ba..0eff34bf0644 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2774,6 +2774,15 @@ F: Documentation/isdn/README.gigaset F: drivers/isdn/gigaset/ F: include/linux/gigaset_dev.h +GPIO SUBSYSTEM +M: Grant Likely +L: linux-kernel@vger.kernel.org +S: Maintained +T: git git://git.secretlab.ca/git/linux-2.6.git +F: Documentation/gpio/gpio.txt +F: drivers/gpio/ +F: include/linux/gpio* + GRETH 10/100/1G Ethernet MAC device driver M: Kristoffer Glembo L: netdev@vger.kernel.org From 78bba987bc025a7263248501b453476e77b93331 Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Sat, 12 Feb 2011 12:33:59 +0100 Subject: [PATCH 214/277] devicetree-discuss is moderated for non-subscribers Signed-off-by: Paul Bolle Signed-off-by: Grant Likely --- MAINTAINERS | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index 55592f8b672c..d29839e46a69 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4562,7 +4562,7 @@ F: drivers/i2c/busses/i2c-ocores.c OPEN FIRMWARE AND FLATTENED DEVICE TREE M: Grant Likely -L: devicetree-discuss@lists.ozlabs.org +L: devicetree-discuss@lists.ozlabs.org (moderated for non-subscribers) W: http://fdt.secretlab.ca T: git git://git.secretlab.ca/git/linux-2.6.git S: Maintained From f00eaeea7a42b5ea327e9ce8839cb0b53d3bdb4e Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 13 Feb 2011 07:50:50 -0800 Subject: [PATCH 215/277] Revert "pci: use security_capable() when checking capablities during config space read" This reverts commit 47970b1b2aa64464bc0a9543e86361a622ae7c03. It turns out it breaks several distributions. Looks like the stricter selinux checks fail due to selinux policies not being set to allow the access - breaking X, but also lspci. So while the change was clearly the RightThing(tm) to do in theory, in practice we have backwards compatibility issues making it not work. Reported-by: Dave Young Acked-by: David Airlie Acked-by: Alex Riesen Cc: Eric Paris Cc: Chris Wright Cc: James Morris Signed-off-by: Linus Torvalds --- drivers/pci/pci-sysfs.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index f7771f336b7d..8ecaac983923 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -23,7 +23,6 @@ #include #include #include -#include #include #include #include "pci.h" @@ -369,7 +368,7 @@ pci_read_config(struct file *filp, struct kobject *kobj, u8 *data = (u8*) buf; /* Several chips lock up trying to read undefined config space */ - if (security_capable(filp->f_cred, CAP_SYS_ADMIN)) { + if (cap_raised(filp->f_cred->cap_effective, CAP_SYS_ADMIN)) { size = dev->cfg_size; } else if (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS) { size = 128; From 16f9fdcbcce74102bed9a4b7ccc1fb05b5dd6ca3 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 7 Feb 2011 12:00:51 +1000 Subject: [PATCH 216/277] drm/radeon: fix memory debugging since d961db75ce86a84f1f04e91ad1014653ed7d9f46 The old code dereferenced a value, the new code just needs to pass the ptr. fixes an oops looking at files in debugfs. cc: stable@kernel.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_ttm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index 1272e4b6a1d4..e5b2cf10cbf4 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -787,9 +787,9 @@ static int radeon_ttm_debugfs_init(struct radeon_device *rdev) radeon_mem_types_list[i].show = &radeon_mm_dump_table; radeon_mem_types_list[i].driver_features = 0; if (i == 0) - radeon_mem_types_list[i].data = &rdev->mman.bdev.man[TTM_PL_VRAM].priv; + radeon_mem_types_list[i].data = rdev->mman.bdev.man[TTM_PL_VRAM].priv; else - radeon_mem_types_list[i].data = &rdev->mman.bdev.man[TTM_PL_TT].priv; + radeon_mem_types_list[i].data = rdev->mman.bdev.man[TTM_PL_TT].priv; } /* Add ttm page pool to debugfs */ From c9417bdd4c6b1b92a21608c07e83afa419c7bb62 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Sun, 6 Feb 2011 14:23:26 -0500 Subject: [PATCH 217/277] drm/radeon/kms: fix interlaced modes on dce4+ - set scaler table clears the interleave bit, need to reset it in encoder quirks, this was already done for pre-dce4. - remove the interleave settings from set_base() functions this is now handled in the encoder quirks functions, and isn't technically part of the display base setup. - rename evergreen_do_set_base() to dce4_do_set_base() since it's used on both evergreen and NI asics. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=28182 Signed-off-by: Alex Deucher Cc: stable@kernel.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/atombios_crtc.c | 22 +++++----------------- drivers/gpu/drm/radeon/radeon_encoders.c | 20 +++++++++++++++----- 2 files changed, 20 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index b1537000a104..dd4e3acf79c0 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -995,9 +995,9 @@ static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode } } -static int evergreen_crtc_do_set_base(struct drm_crtc *crtc, - struct drm_framebuffer *fb, - int x, int y, int atomic) +static int dce4_crtc_do_set_base(struct drm_crtc *crtc, + struct drm_framebuffer *fb, + int x, int y, int atomic) { struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); struct drm_device *dev = crtc->dev; @@ -1137,12 +1137,6 @@ static int evergreen_crtc_do_set_base(struct drm_crtc *crtc, WREG32(EVERGREEN_VIEWPORT_SIZE + radeon_crtc->crtc_offset, (crtc->mode.hdisplay << 16) | crtc->mode.vdisplay); - if (crtc->mode.flags & DRM_MODE_FLAG_INTERLACE) - WREG32(EVERGREEN_DATA_FORMAT + radeon_crtc->crtc_offset, - EVERGREEN_INTERLEAVE_EN); - else - WREG32(EVERGREEN_DATA_FORMAT + radeon_crtc->crtc_offset, 0); - if (!atomic && fb && fb != crtc->fb) { radeon_fb = to_radeon_framebuffer(fb); rbo = radeon_fb->obj->driver_private; @@ -1300,12 +1294,6 @@ static int avivo_crtc_do_set_base(struct drm_crtc *crtc, WREG32(AVIVO_D1MODE_VIEWPORT_SIZE + radeon_crtc->crtc_offset, (crtc->mode.hdisplay << 16) | crtc->mode.vdisplay); - if (crtc->mode.flags & DRM_MODE_FLAG_INTERLACE) - WREG32(AVIVO_D1MODE_DATA_FORMAT + radeon_crtc->crtc_offset, - AVIVO_D1MODE_INTERLEAVE_EN); - else - WREG32(AVIVO_D1MODE_DATA_FORMAT + radeon_crtc->crtc_offset, 0); - if (!atomic && fb && fb != crtc->fb) { radeon_fb = to_radeon_framebuffer(fb); rbo = radeon_fb->obj->driver_private; @@ -1329,7 +1317,7 @@ int atombios_crtc_set_base(struct drm_crtc *crtc, int x, int y, struct radeon_device *rdev = dev->dev_private; if (ASIC_IS_DCE4(rdev)) - return evergreen_crtc_do_set_base(crtc, old_fb, x, y, 0); + return dce4_crtc_do_set_base(crtc, old_fb, x, y, 0); else if (ASIC_IS_AVIVO(rdev)) return avivo_crtc_do_set_base(crtc, old_fb, x, y, 0); else @@ -1344,7 +1332,7 @@ int atombios_crtc_set_base_atomic(struct drm_crtc *crtc, struct radeon_device *rdev = dev->dev_private; if (ASIC_IS_DCE4(rdev)) - return evergreen_crtc_do_set_base(crtc, fb, x, y, 1); + return dce4_crtc_do_set_base(crtc, fb, x, y, 1); else if (ASIC_IS_AVIVO(rdev)) return avivo_crtc_do_set_base(crtc, fb, x, y, 1); else diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c index d4a542247618..5b38b73ccd12 100644 --- a/drivers/gpu/drm/radeon/radeon_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_encoders.c @@ -1570,11 +1570,21 @@ atombios_apply_encoder_quirks(struct drm_encoder *encoder, } /* set scaler clears this on some chips */ - /* XXX check DCE4 */ - if (!(radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT))) { - if (ASIC_IS_AVIVO(rdev) && (mode->flags & DRM_MODE_FLAG_INTERLACE)) - WREG32(AVIVO_D1MODE_DATA_FORMAT + radeon_crtc->crtc_offset, - AVIVO_D1MODE_INTERLEAVE_EN); + if (ASIC_IS_AVIVO(rdev) && + (!(radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT)))) { + if (ASIC_IS_DCE4(rdev)) { + if (mode->flags & DRM_MODE_FLAG_INTERLACE) + WREG32(EVERGREEN_DATA_FORMAT + radeon_crtc->crtc_offset, + EVERGREEN_INTERLEAVE_EN); + else + WREG32(EVERGREEN_DATA_FORMAT + radeon_crtc->crtc_offset, 0); + } else { + if (mode->flags & DRM_MODE_FLAG_INTERLACE) + WREG32(AVIVO_D1MODE_DATA_FORMAT + radeon_crtc->crtc_offset, + AVIVO_D1MODE_INTERLEAVE_EN); + else + WREG32(AVIVO_D1MODE_DATA_FORMAT + radeon_crtc->crtc_offset, 0); + } } } From e917fd39eb35e5b2c464e67a80e759f3eb468e48 Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Sat, 5 Feb 2011 20:51:53 +0100 Subject: [PATCH 218/277] radeon mkregtable: Add missing fclose() calls drivers/gpu/drm/radeon/mkregtable.c:parser_auth() almost always remembers to fclose(file) before returning, but it misses two spots. This is not really important since the process will exit shortly after and thus close the file for us, but being explicit prevents static analysis tools from complaining about leaked memory and missing fclose() calls and it also seems to be the prefered style of the existing code to explicitly close the file. So, here's a patch to add the two missing fclose() calls. Signed-off-by: Jesper Juhl Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/mkregtable.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/mkregtable.c b/drivers/gpu/drm/radeon/mkregtable.c index 607241c6a8a9..5a82b6b75849 100644 --- a/drivers/gpu/drm/radeon/mkregtable.c +++ b/drivers/gpu/drm/radeon/mkregtable.c @@ -673,8 +673,10 @@ static int parser_auth(struct table *t, const char *filename) last_reg = strtol(last_reg_s, NULL, 16); do { - if (fgets(buf, 1024, file) == NULL) + if (fgets(buf, 1024, file) == NULL) { + fclose(file); return -1; + } len = strlen(buf); if (ftell(file) == end) done = 1; @@ -685,6 +687,7 @@ static int parser_auth(struct table *t, const char *filename) fprintf(stderr, "Error matching regular expression %d in %s\n", r, filename); + fclose(file); return -1; } else { buf[match[0].rm_eo] = 0; From 9fad321ac6bedd96f449754a1a25289ea1789a49 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 7 Feb 2011 13:15:28 -0500 Subject: [PATCH 219/277] drm/radeon/kms: add connector table for mac g5 9600 PPC Mac cards do not provide connector tables in their vbios. Their connector/encoder configurations must be hardcoded in the driver. verified by nyef on #radeon Signed-off-by: Alex Deucher Cc: stable@kernel.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_combios.c | 47 +++++++++++++++++++++++++ drivers/gpu/drm/radeon/radeon_mode.h | 1 + 2 files changed, 48 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index d27ef74590cd..cf7c8d5b4ec2 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -1504,6 +1504,11 @@ bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev) (rdev->pdev->subsystem_device == 0x4a48)) { /* Mac X800 */ rdev->mode_info.connector_table = CT_MAC_X800; + } else if ((rdev->pdev->device == 0x4150) && + (rdev->pdev->subsystem_vendor == 0x1002) && + (rdev->pdev->subsystem_device == 0x4150)) { + /* Mac G5 9600 */ + rdev->mode_info.connector_table = CT_MAC_G5_9600; } else #endif /* CONFIG_PPC_PMAC */ #ifdef CONFIG_PPC64 @@ -2022,6 +2027,48 @@ bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev) CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I, &hpd); break; + case CT_MAC_G5_9600: + DRM_INFO("Connector Table: %d (mac g5 9600)\n", + rdev->mode_info.connector_table); + /* DVI - tv dac, dvo */ + ddc_i2c = combios_setup_i2c_bus(rdev, DDC_DVI, 0, 0); + hpd.hpd = RADEON_HPD_1; /* ??? */ + radeon_add_legacy_encoder(dev, + radeon_get_encoder_enum(dev, + ATOM_DEVICE_DFP2_SUPPORT, + 0), + ATOM_DEVICE_DFP2_SUPPORT); + radeon_add_legacy_encoder(dev, + radeon_get_encoder_enum(dev, + ATOM_DEVICE_CRT2_SUPPORT, + 2), + ATOM_DEVICE_CRT2_SUPPORT); + radeon_add_legacy_connector(dev, 0, + ATOM_DEVICE_DFP2_SUPPORT | + ATOM_DEVICE_CRT2_SUPPORT, + DRM_MODE_CONNECTOR_DVII, &ddc_i2c, + CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I, + &hpd); + /* ADC - primary dac, internal tmds */ + ddc_i2c = combios_setup_i2c_bus(rdev, DDC_VGA, 0, 0); + hpd.hpd = RADEON_HPD_2; /* ??? */ + radeon_add_legacy_encoder(dev, + radeon_get_encoder_enum(dev, + ATOM_DEVICE_DFP1_SUPPORT, + 0), + ATOM_DEVICE_DFP1_SUPPORT); + radeon_add_legacy_encoder(dev, + radeon_get_encoder_enum(dev, + ATOM_DEVICE_CRT1_SUPPORT, + 1), + ATOM_DEVICE_CRT1_SUPPORT); + radeon_add_legacy_connector(dev, 1, + ATOM_DEVICE_DFP1_SUPPORT | + ATOM_DEVICE_CRT1_SUPPORT, + DRM_MODE_CONNECTOR_DVII, &ddc_i2c, + CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I, + &hpd); + break; default: DRM_INFO("Connector table: %d (invalid)\n", rdev->mode_info.connector_table); diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h index 6794cdf91f28..a670caaee29e 100644 --- a/drivers/gpu/drm/radeon/radeon_mode.h +++ b/drivers/gpu/drm/radeon/radeon_mode.h @@ -209,6 +209,7 @@ enum radeon_connector_table { CT_EMAC, CT_RN50_POWER, CT_MAC_X800, + CT_MAC_G5_9600, }; enum radeon_dvo_chip { From 01e2f533a234dc62d16c0d3d4fb9d71cf1ce50c3 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Fri, 11 Feb 2011 19:29:44 -0800 Subject: [PATCH 220/277] drm: do not leak kernel addresses via /proc/dri/*/vma In the continuing effort to avoid kernel addresses leaking to unprivileged users, this patch switches to %pK for /proc/dri/*/vma. Signed-off-by: Kees Cook Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_info.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/drm_info.c b/drivers/gpu/drm/drm_info.c index 3cdbaf379bb5..be9a9c07d152 100644 --- a/drivers/gpu/drm/drm_info.c +++ b/drivers/gpu/drm/drm_info.c @@ -283,17 +283,18 @@ int drm_vma_info(struct seq_file *m, void *data) #endif mutex_lock(&dev->struct_mutex); - seq_printf(m, "vma use count: %d, high_memory = %p, 0x%08llx\n", + seq_printf(m, "vma use count: %d, high_memory = %pK, 0x%pK\n", atomic_read(&dev->vma_count), - high_memory, (u64)virt_to_phys(high_memory)); + high_memory, (void *)virt_to_phys(high_memory)); list_for_each_entry(pt, &dev->vmalist, head) { vma = pt->vma; if (!vma) continue; seq_printf(m, - "\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx000", - pt->pid, vma->vm_start, vma->vm_end, + "\n%5d 0x%pK-0x%pK %c%c%c%c%c%c 0x%08lx000", + pt->pid, + (void *)vma->vm_start, (void *)vma->vm_end, vma->vm_flags & VM_READ ? 'r' : '-', vma->vm_flags & VM_WRITE ? 'w' : '-', vma->vm_flags & VM_EXEC ? 'x' : '-', From 40b4a7599d5555b408e594f4c8dae8015ccaae8f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marek=20Ol=C5=A1=C3=A1k?= Date: Sat, 12 Feb 2011 19:21:35 +0100 Subject: [PATCH 221/277] drm/radeon/kms: optimize CS state checking for r100->r500 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The colorbuffer, zbuffer, and texture states are checked only once when they get changed. This improves performance in the apps which emit lots of draw packets and few state changes. This drops performance in glxgears by a 1% or so, but glxgears is not a benchmark we care about. The time spent in the kernel when running Torcs dropped from 33% to 23% and the frame rate is higher, which is a good thing. r600 might need something like this as well. Signed-off-by: Marek Olšák Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r100.c | 40 ++++++++++++++++++++++++++--- drivers/gpu/drm/radeon/r100_track.h | 11 +++----- drivers/gpu/drm/radeon/r200.c | 18 +++++++++++++ drivers/gpu/drm/radeon/r300.c | 20 ++++++++++++++- 4 files changed, 77 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index 5f15820efe12..fdf4bc67ae58 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -1427,6 +1427,7 @@ static int r100_packet0_check(struct radeon_cs_parser *p, } track->zb.robj = reloc->robj; track->zb.offset = idx_value; + track->zb_dirty = true; ib[idx] = idx_value + ((u32)reloc->lobj.gpu_offset); break; case RADEON_RB3D_COLOROFFSET: @@ -1439,6 +1440,7 @@ static int r100_packet0_check(struct radeon_cs_parser *p, } track->cb[0].robj = reloc->robj; track->cb[0].offset = idx_value; + track->cb_dirty = true; ib[idx] = idx_value + ((u32)reloc->lobj.gpu_offset); break; case RADEON_PP_TXOFFSET_0: @@ -1454,6 +1456,7 @@ static int r100_packet0_check(struct radeon_cs_parser *p, } ib[idx] = idx_value + ((u32)reloc->lobj.gpu_offset); track->textures[i].robj = reloc->robj; + track->tex_dirty = true; break; case RADEON_PP_CUBIC_OFFSET_T0_0: case RADEON_PP_CUBIC_OFFSET_T0_1: @@ -1471,6 +1474,7 @@ static int r100_packet0_check(struct radeon_cs_parser *p, track->textures[0].cube_info[i].offset = idx_value; ib[idx] = idx_value + ((u32)reloc->lobj.gpu_offset); track->textures[0].cube_info[i].robj = reloc->robj; + track->tex_dirty = true; break; case RADEON_PP_CUBIC_OFFSET_T1_0: case RADEON_PP_CUBIC_OFFSET_T1_1: @@ -1488,6 +1492,7 @@ static int r100_packet0_check(struct radeon_cs_parser *p, track->textures[1].cube_info[i].offset = idx_value; ib[idx] = idx_value + ((u32)reloc->lobj.gpu_offset); track->textures[1].cube_info[i].robj = reloc->robj; + track->tex_dirty = true; break; case RADEON_PP_CUBIC_OFFSET_T2_0: case RADEON_PP_CUBIC_OFFSET_T2_1: @@ -1505,9 +1510,12 @@ static int r100_packet0_check(struct radeon_cs_parser *p, track->textures[2].cube_info[i].offset = idx_value; ib[idx] = idx_value + ((u32)reloc->lobj.gpu_offset); track->textures[2].cube_info[i].robj = reloc->robj; + track->tex_dirty = true; break; case RADEON_RE_WIDTH_HEIGHT: track->maxy = ((idx_value >> 16) & 0x7FF); + track->cb_dirty = true; + track->zb_dirty = true; break; case RADEON_RB3D_COLORPITCH: r = r100_cs_packet_next_reloc(p, &reloc); @@ -1528,9 +1536,11 @@ static int r100_packet0_check(struct radeon_cs_parser *p, ib[idx] = tmp; track->cb[0].pitch = idx_value & RADEON_COLORPITCH_MASK; + track->cb_dirty = true; break; case RADEON_RB3D_DEPTHPITCH: track->zb.pitch = idx_value & RADEON_DEPTHPITCH_MASK; + track->zb_dirty = true; break; case RADEON_RB3D_CNTL: switch ((idx_value >> RADEON_RB3D_COLOR_FORMAT_SHIFT) & 0x1f) { @@ -1555,6 +1565,8 @@ static int r100_packet0_check(struct radeon_cs_parser *p, return -EINVAL; } track->z_enabled = !!(idx_value & RADEON_Z_ENABLE); + track->cb_dirty = true; + track->zb_dirty = true; break; case RADEON_RB3D_ZSTENCILCNTL: switch (idx_value & 0xf) { @@ -1572,6 +1584,7 @@ static int r100_packet0_check(struct radeon_cs_parser *p, default: break; } + track->zb_dirty = true; break; case RADEON_RB3D_ZPASS_ADDR: r = r100_cs_packet_next_reloc(p, &reloc); @@ -1588,6 +1601,7 @@ static int r100_packet0_check(struct radeon_cs_parser *p, uint32_t temp = idx_value >> 4; for (i = 0; i < track->num_texture; i++) track->textures[i].enabled = !!(temp & (1 << i)); + track->tex_dirty = true; } break; case RADEON_SE_VF_CNTL: @@ -1602,12 +1616,14 @@ static int r100_packet0_check(struct radeon_cs_parser *p, i = (reg - RADEON_PP_TEX_SIZE_0) / 8; track->textures[i].width = (idx_value & RADEON_TEX_USIZE_MASK) + 1; track->textures[i].height = ((idx_value & RADEON_TEX_VSIZE_MASK) >> RADEON_TEX_VSIZE_SHIFT) + 1; + track->tex_dirty = true; break; case RADEON_PP_TEX_PITCH_0: case RADEON_PP_TEX_PITCH_1: case RADEON_PP_TEX_PITCH_2: i = (reg - RADEON_PP_TEX_PITCH_0) / 8; track->textures[i].pitch = idx_value + 32; + track->tex_dirty = true; break; case RADEON_PP_TXFILTER_0: case RADEON_PP_TXFILTER_1: @@ -1621,6 +1637,7 @@ static int r100_packet0_check(struct radeon_cs_parser *p, tmp = (idx_value >> 27) & 0x7; if (tmp == 2 || tmp == 6) track->textures[i].roundup_h = false; + track->tex_dirty = true; break; case RADEON_PP_TXFORMAT_0: case RADEON_PP_TXFORMAT_1: @@ -1673,6 +1690,7 @@ static int r100_packet0_check(struct radeon_cs_parser *p, } track->textures[i].cube_info[4].width = 1 << ((idx_value >> 16) & 0xf); track->textures[i].cube_info[4].height = 1 << ((idx_value >> 20) & 0xf); + track->tex_dirty = true; break; case RADEON_PP_CUBIC_FACES_0: case RADEON_PP_CUBIC_FACES_1: @@ -1683,6 +1701,7 @@ static int r100_packet0_check(struct radeon_cs_parser *p, track->textures[i].cube_info[face].width = 1 << ((tmp >> (face * 8)) & 0xf); track->textures[i].cube_info[face].height = 1 << ((tmp >> ((face * 8) + 4)) & 0xf); } + track->tex_dirty = true; break; default: printk(KERN_ERR "Forbidden register 0x%04X in cs at %d\n", @@ -3318,9 +3337,9 @@ int r100_cs_track_check(struct radeon_device *rdev, struct r100_cs_track *track) unsigned long size; unsigned prim_walk; unsigned nverts; - unsigned num_cb = track->num_cb; + unsigned num_cb = track->cb_dirty ? track->num_cb : 0; - if (!track->zb_cb_clear && !track->color_channel_mask && + if (num_cb && !track->zb_cb_clear && !track->color_channel_mask && !track->blend_read_enable) num_cb = 0; @@ -3341,7 +3360,9 @@ int r100_cs_track_check(struct radeon_device *rdev, struct r100_cs_track *track) return -EINVAL; } } - if (track->z_enabled) { + track->cb_dirty = false; + + if (track->zb_dirty && track->z_enabled) { if (track->zb.robj == NULL) { DRM_ERROR("[drm] No buffer for z buffer !\n"); return -EINVAL; @@ -3358,6 +3379,8 @@ int r100_cs_track_check(struct radeon_device *rdev, struct r100_cs_track *track) return -EINVAL; } } + track->zb_dirty = false; + prim_walk = (track->vap_vf_cntl >> 4) & 0x3; if (track->vap_vf_cntl & (1 << 14)) { nverts = track->vap_alt_nverts; @@ -3417,13 +3440,22 @@ int r100_cs_track_check(struct radeon_device *rdev, struct r100_cs_track *track) prim_walk); return -EINVAL; } - return r100_cs_track_texture_check(rdev, track); + + if (track->tex_dirty) { + track->tex_dirty = false; + return r100_cs_track_texture_check(rdev, track); + } + return 0; } void r100_cs_track_clear(struct radeon_device *rdev, struct r100_cs_track *track) { unsigned i, face; + track->cb_dirty = true; + track->zb_dirty = true; + track->tex_dirty = true; + if (rdev->family < CHIP_R300) { track->num_cb = 1; if (rdev->family <= CHIP_RS200) diff --git a/drivers/gpu/drm/radeon/r100_track.h b/drivers/gpu/drm/radeon/r100_track.h index af65600e6564..ee85c4a1fc08 100644 --- a/drivers/gpu/drm/radeon/r100_track.h +++ b/drivers/gpu/drm/radeon/r100_track.h @@ -52,14 +52,7 @@ struct r100_cs_track_texture { unsigned compress_format; }; -struct r100_cs_track_limits { - unsigned num_cb; - unsigned num_texture; - unsigned max_levels; -}; - struct r100_cs_track { - struct radeon_device *rdev; unsigned num_cb; unsigned num_texture; unsigned maxy; @@ -78,6 +71,10 @@ struct r100_cs_track { bool separate_cube; bool zb_cb_clear; bool blend_read_enable; + + bool cb_dirty; + bool zb_dirty; + bool tex_dirty; }; int r100_cs_track_check(struct radeon_device *rdev, struct r100_cs_track *track); diff --git a/drivers/gpu/drm/radeon/r200.c b/drivers/gpu/drm/radeon/r200.c index d2408c395619..f24058300413 100644 --- a/drivers/gpu/drm/radeon/r200.c +++ b/drivers/gpu/drm/radeon/r200.c @@ -184,6 +184,7 @@ int r200_packet0_check(struct radeon_cs_parser *p, } track->zb.robj = reloc->robj; track->zb.offset = idx_value; + track->zb_dirty = true; ib[idx] = idx_value + ((u32)reloc->lobj.gpu_offset); break; case RADEON_RB3D_COLOROFFSET: @@ -196,6 +197,7 @@ int r200_packet0_check(struct radeon_cs_parser *p, } track->cb[0].robj = reloc->robj; track->cb[0].offset = idx_value; + track->cb_dirty = true; ib[idx] = idx_value + ((u32)reloc->lobj.gpu_offset); break; case R200_PP_TXOFFSET_0: @@ -214,6 +216,7 @@ int r200_packet0_check(struct radeon_cs_parser *p, } ib[idx] = idx_value + ((u32)reloc->lobj.gpu_offset); track->textures[i].robj = reloc->robj; + track->tex_dirty = true; break; case R200_PP_CUBIC_OFFSET_F1_0: case R200_PP_CUBIC_OFFSET_F2_0: @@ -257,9 +260,12 @@ int r200_packet0_check(struct radeon_cs_parser *p, track->textures[i].cube_info[face - 1].offset = idx_value; ib[idx] = idx_value + ((u32)reloc->lobj.gpu_offset); track->textures[i].cube_info[face - 1].robj = reloc->robj; + track->tex_dirty = true; break; case RADEON_RE_WIDTH_HEIGHT: track->maxy = ((idx_value >> 16) & 0x7FF); + track->cb_dirty = true; + track->zb_dirty = true; break; case RADEON_RB3D_COLORPITCH: r = r100_cs_packet_next_reloc(p, &reloc); @@ -280,9 +286,11 @@ int r200_packet0_check(struct radeon_cs_parser *p, ib[idx] = tmp; track->cb[0].pitch = idx_value & RADEON_COLORPITCH_MASK; + track->cb_dirty = true; break; case RADEON_RB3D_DEPTHPITCH: track->zb.pitch = idx_value & RADEON_DEPTHPITCH_MASK; + track->zb_dirty = true; break; case RADEON_RB3D_CNTL: switch ((idx_value >> RADEON_RB3D_COLOR_FORMAT_SHIFT) & 0x1f) { @@ -312,6 +320,8 @@ int r200_packet0_check(struct radeon_cs_parser *p, } track->z_enabled = !!(idx_value & RADEON_Z_ENABLE); + track->cb_dirty = true; + track->zb_dirty = true; break; case RADEON_RB3D_ZSTENCILCNTL: switch (idx_value & 0xf) { @@ -329,6 +339,7 @@ int r200_packet0_check(struct radeon_cs_parser *p, default: break; } + track->zb_dirty = true; break; case RADEON_RB3D_ZPASS_ADDR: r = r100_cs_packet_next_reloc(p, &reloc); @@ -345,6 +356,7 @@ int r200_packet0_check(struct radeon_cs_parser *p, uint32_t temp = idx_value >> 4; for (i = 0; i < track->num_texture; i++) track->textures[i].enabled = !!(temp & (1 << i)); + track->tex_dirty = true; } break; case RADEON_SE_VF_CNTL: @@ -369,6 +381,7 @@ int r200_packet0_check(struct radeon_cs_parser *p, i = (reg - R200_PP_TXSIZE_0) / 32; track->textures[i].width = (idx_value & RADEON_TEX_USIZE_MASK) + 1; track->textures[i].height = ((idx_value & RADEON_TEX_VSIZE_MASK) >> RADEON_TEX_VSIZE_SHIFT) + 1; + track->tex_dirty = true; break; case R200_PP_TXPITCH_0: case R200_PP_TXPITCH_1: @@ -378,6 +391,7 @@ int r200_packet0_check(struct radeon_cs_parser *p, case R200_PP_TXPITCH_5: i = (reg - R200_PP_TXPITCH_0) / 32; track->textures[i].pitch = idx_value + 32; + track->tex_dirty = true; break; case R200_PP_TXFILTER_0: case R200_PP_TXFILTER_1: @@ -394,6 +408,7 @@ int r200_packet0_check(struct radeon_cs_parser *p, tmp = (idx_value >> 27) & 0x7; if (tmp == 2 || tmp == 6) track->textures[i].roundup_h = false; + track->tex_dirty = true; break; case R200_PP_TXMULTI_CTL_0: case R200_PP_TXMULTI_CTL_1: @@ -432,6 +447,7 @@ int r200_packet0_check(struct radeon_cs_parser *p, track->textures[i].tex_coord_type = 1; break; } + track->tex_dirty = true; break; case R200_PP_TXFORMAT_0: case R200_PP_TXFORMAT_1: @@ -488,6 +504,7 @@ int r200_packet0_check(struct radeon_cs_parser *p, } track->textures[i].cube_info[4].width = 1 << ((idx_value >> 16) & 0xf); track->textures[i].cube_info[4].height = 1 << ((idx_value >> 20) & 0xf); + track->tex_dirty = true; break; case R200_PP_CUBIC_FACES_0: case R200_PP_CUBIC_FACES_1: @@ -501,6 +518,7 @@ int r200_packet0_check(struct radeon_cs_parser *p, track->textures[i].cube_info[face].width = 1 << ((tmp >> (face * 8)) & 0xf); track->textures[i].cube_info[face].height = 1 << ((tmp >> ((face * 8) + 4)) & 0xf); } + track->tex_dirty = true; break; default: printk(KERN_ERR "Forbidden register 0x%04X in cs at %d\n", diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c index 55fe5ba7def3..15f94648f274 100644 --- a/drivers/gpu/drm/radeon/r300.c +++ b/drivers/gpu/drm/radeon/r300.c @@ -667,6 +667,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p, } track->cb[i].robj = reloc->robj; track->cb[i].offset = idx_value; + track->cb_dirty = true; ib[idx] = idx_value + ((u32)reloc->lobj.gpu_offset); break; case R300_ZB_DEPTHOFFSET: @@ -679,6 +680,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p, } track->zb.robj = reloc->robj; track->zb.offset = idx_value; + track->zb_dirty = true; ib[idx] = idx_value + ((u32)reloc->lobj.gpu_offset); break; case R300_TX_OFFSET_0: @@ -717,6 +719,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p, tmp |= tile_flags; ib[idx] = tmp; track->textures[i].robj = reloc->robj; + track->tex_dirty = true; break; /* Tracked registers */ case 0x2084: @@ -743,6 +746,8 @@ static int r300_packet0_check(struct radeon_cs_parser *p, if (p->rdev->family < CHIP_RV515) { track->maxy -= 1440; } + track->cb_dirty = true; + track->zb_dirty = true; break; case 0x4E00: /* RB3D_CCTL */ @@ -752,6 +757,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p, return -EINVAL; } track->num_cb = ((idx_value >> 5) & 0x3) + 1; + track->cb_dirty = true; break; case 0x4E38: case 0x4E3C: @@ -814,6 +820,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p, ((idx_value >> 21) & 0xF)); return -EINVAL; } + track->cb_dirty = true; break; case 0x4F00: /* ZB_CNTL */ @@ -822,6 +829,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p, } else { track->z_enabled = false; } + track->zb_dirty = true; break; case 0x4F10: /* ZB_FORMAT */ @@ -838,6 +846,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p, (idx_value & 0xF)); return -EINVAL; } + track->zb_dirty = true; break; case 0x4F24: /* ZB_DEPTHPITCH */ @@ -861,6 +870,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p, ib[idx] = tmp; track->zb.pitch = idx_value & 0x3FFC; + track->zb_dirty = true; break; case 0x4104: for (i = 0; i < 16; i++) { @@ -869,6 +879,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p, enabled = !!(idx_value & (1 << i)); track->textures[i].enabled = enabled; } + track->tex_dirty = true; break; case 0x44C0: case 0x44C4: @@ -951,8 +962,8 @@ static int r300_packet0_check(struct radeon_cs_parser *p, DRM_ERROR("Invalid texture format %u\n", (idx_value & 0x1F)); return -EINVAL; - break; } + track->tex_dirty = true; break; case 0x4400: case 0x4404: @@ -980,6 +991,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p, if (tmp == 2 || tmp == 4 || tmp == 6) { track->textures[i].roundup_h = false; } + track->tex_dirty = true; break; case 0x4500: case 0x4504: @@ -1017,6 +1029,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p, DRM_ERROR("Forbidden bit TXFORMAT_MSB\n"); return -EINVAL; } + track->tex_dirty = true; break; case 0x4480: case 0x4484: @@ -1046,6 +1059,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p, track->textures[i].use_pitch = !!tmp; tmp = (idx_value >> 22) & 0xF; track->textures[i].txdepth = tmp; + track->tex_dirty = true; break; case R300_ZB_ZPASS_ADDR: r = r100_cs_packet_next_reloc(p, &reloc); @@ -1060,6 +1074,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p, case 0x4e0c: /* RB3D_COLOR_CHANNEL_MASK */ track->color_channel_mask = idx_value; + track->cb_dirty = true; break; case 0x43a4: /* SC_HYPERZ_EN */ @@ -1073,6 +1088,8 @@ static int r300_packet0_check(struct radeon_cs_parser *p, case 0x4f1c: /* ZB_BW_CNTL */ track->zb_cb_clear = !!(idx_value & (1 << 5)); + track->cb_dirty = true; + track->zb_dirty = true; if (p->rdev->hyperz_filp != p->filp) { if (idx_value & (R300_HIZ_ENABLE | R300_RD_COMP_ENABLE | @@ -1084,6 +1101,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p, case 0x4e04: /* RB3D_BLENDCNTL */ track->blend_read_enable = !!(idx_value & (1 << 2)); + track->cb_dirty = true; break; case 0x4f28: /* ZB_DEPTHCLEARVALUE */ break; From dee54c40a1a9898bcd156436a1d3524f530b5a90 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Cano?= Date: Fri, 11 Feb 2011 19:45:36 -0500 Subject: [PATCH 222/277] drm/radeon: 6xx/7xx non-kms endian fixes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit agd5f: minor cleanups Signed-off-by: Cédric Cano Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r600_blit.c | 11 ++++++++-- drivers/gpu/drm/radeon/r600_cp.c | 31 ++++++++++++++++++++++------- drivers/gpu/drm/radeon/radeon_drv.h | 1 + 3 files changed, 34 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/radeon/r600_blit.c b/drivers/gpu/drm/radeon/r600_blit.c index ca5c29f70779..7f1043448d25 100644 --- a/drivers/gpu/drm/radeon/r600_blit.c +++ b/drivers/gpu/drm/radeon/r600_blit.c @@ -137,9 +137,9 @@ set_shaders(struct drm_device *dev) ps = (u32 *) ((char *)dev->agp_buffer_map->handle + dev_priv->blit_vb->offset + 256); for (i = 0; i < r6xx_vs_size; i++) - vs[i] = r6xx_vs[i]; + vs[i] = cpu_to_le32(r6xx_vs[i]); for (i = 0; i < r6xx_ps_size; i++) - ps[i] = r6xx_ps[i]; + ps[i] = cpu_to_le32(r6xx_ps[i]); dev_priv->blit_vb->used = 512; @@ -192,6 +192,9 @@ set_vtx_resource(drm_radeon_private_t *dev_priv, u64 gpu_addr) DRM_DEBUG("\n"); sq_vtx_constant_word2 = (((gpu_addr >> 32) & 0xff) | (16 << 8)); +#ifdef __BIG_ENDIAN + sq_vtx_constant_word2 |= (2 << 30); +#endif BEGIN_RING(9); OUT_RING(CP_PACKET3(R600_IT_SET_RESOURCE, 7)); @@ -291,7 +294,11 @@ draw_auto(drm_radeon_private_t *dev_priv) OUT_RING(DI_PT_RECTLIST); OUT_RING(CP_PACKET3(R600_IT_INDEX_TYPE, 0)); +#ifdef __BIG_ENDIAN + OUT_RING((2 << 2) | DI_INDEX_SIZE_16_BIT); +#else OUT_RING(DI_INDEX_SIZE_16_BIT); +#endif OUT_RING(CP_PACKET3(R600_IT_NUM_INSTANCES, 0)); OUT_RING(1); diff --git a/drivers/gpu/drm/radeon/r600_cp.c b/drivers/gpu/drm/radeon/r600_cp.c index 4f4cd8b286d5..c3ab959bdc7c 100644 --- a/drivers/gpu/drm/radeon/r600_cp.c +++ b/drivers/gpu/drm/radeon/r600_cp.c @@ -396,6 +396,9 @@ static void r600_cp_load_microcode(drm_radeon_private_t *dev_priv) r600_do_cp_stop(dev_priv); RADEON_WRITE(R600_CP_RB_CNTL, +#ifdef __BIG_ENDIAN + R600_BUF_SWAP_32BIT | +#endif R600_RB_NO_UPDATE | R600_RB_BLKSZ(15) | R600_RB_BUFSZ(3)); @@ -486,9 +489,12 @@ static void r700_cp_load_microcode(drm_radeon_private_t *dev_priv) r600_do_cp_stop(dev_priv); RADEON_WRITE(R600_CP_RB_CNTL, +#ifdef __BIG_ENDIAN + R600_BUF_SWAP_32BIT | +#endif R600_RB_NO_UPDATE | - (15 << 8) | - (3 << 0)); + R600_RB_BLKSZ(15) | + R600_RB_BUFSZ(3)); RADEON_WRITE(R600_GRBM_SOFT_RESET, R600_SOFT_RESET_CP); RADEON_READ(R600_GRBM_SOFT_RESET); @@ -550,8 +556,12 @@ static void r600_test_writeback(drm_radeon_private_t *dev_priv) if (!dev_priv->writeback_works) { /* Disable writeback to avoid unnecessary bus master transfer */ - RADEON_WRITE(R600_CP_RB_CNTL, RADEON_READ(R600_CP_RB_CNTL) | - RADEON_RB_NO_UPDATE); + RADEON_WRITE(R600_CP_RB_CNTL, +#ifdef __BIG_ENDIAN + R600_BUF_SWAP_32BIT | +#endif + RADEON_READ(R600_CP_RB_CNTL) | + R600_RB_NO_UPDATE); RADEON_WRITE(R600_SCRATCH_UMSK, 0); } } @@ -575,7 +585,11 @@ int r600_do_engine_reset(struct drm_device *dev) RADEON_WRITE(R600_CP_RB_WPTR_DELAY, 0); cp_rb_cntl = RADEON_READ(R600_CP_RB_CNTL); - RADEON_WRITE(R600_CP_RB_CNTL, R600_RB_RPTR_WR_ENA); + RADEON_WRITE(R600_CP_RB_CNTL, +#ifdef __BIG_ENDIAN + R600_BUF_SWAP_32BIT | +#endif + R600_RB_RPTR_WR_ENA); RADEON_WRITE(R600_CP_RB_RPTR_WR, cp_ptr); RADEON_WRITE(R600_CP_RB_WPTR, cp_ptr); @@ -1838,7 +1852,10 @@ static void r600_cp_init_ring_buffer(struct drm_device *dev, + dev_priv->gart_vm_start; } RADEON_WRITE(R600_CP_RB_RPTR_ADDR, - rptr_addr & 0xffffffff); +#ifdef __BIG_ENDIAN + (2 << 0) | +#endif + (rptr_addr & 0xfffffffc)); RADEON_WRITE(R600_CP_RB_RPTR_ADDR_HI, upper_32_bits(rptr_addr)); @@ -1889,7 +1906,7 @@ static void r600_cp_init_ring_buffer(struct drm_device *dev, { u64 scratch_addr; - scratch_addr = RADEON_READ(R600_CP_RB_RPTR_ADDR); + scratch_addr = RADEON_READ(R600_CP_RB_RPTR_ADDR) & 0xFFFFFFFC; scratch_addr |= ((u64)RADEON_READ(R600_CP_RB_RPTR_ADDR_HI)) << 32; scratch_addr += R600_SCRATCH_REG_OFFSET; scratch_addr >>= 8; diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h index 448eba89d1e6..5cba46b9779a 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.h +++ b/drivers/gpu/drm/radeon/radeon_drv.h @@ -1524,6 +1524,7 @@ extern u32 radeon_get_scratch(drm_radeon_private_t *dev_priv, int index); #define R600_CP_RB_CNTL 0xc104 # define R600_RB_BUFSZ(x) ((x) << 0) # define R600_RB_BLKSZ(x) ((x) << 8) +# define R600_BUF_SWAP_32BIT (2 << 16) # define R600_RB_NO_UPDATE (1 << 27) # define R600_RB_RPTR_WR_ENA (1 << 31) #define R600_CP_RB_RPTR_WR 0xc108 From 4589433c57bd34b7e49068549e07a43c8d41e39d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Cano?= Date: Fri, 11 Feb 2011 19:45:37 -0500 Subject: [PATCH 223/277] drm/radeon/kms: atombios big endian fixes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit agd5f: additional cleanups/fixes Signed-off-by: Cédric Cano Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/atombios_crtc.c | 52 ++++++++++++------------ drivers/gpu/drm/radeon/radeon_atombios.c | 48 +++++++++++----------- drivers/gpu/drm/radeon/radeon_encoders.c | 4 +- 3 files changed, 52 insertions(+), 52 deletions(-) diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index dd4e3acf79c0..1bf61220a450 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -48,29 +48,29 @@ static void atombios_overscan_setup(struct drm_crtc *crtc, switch (radeon_crtc->rmx_type) { case RMX_CENTER: - args.usOverscanTop = (adjusted_mode->crtc_vdisplay - mode->crtc_vdisplay) / 2; - args.usOverscanBottom = (adjusted_mode->crtc_vdisplay - mode->crtc_vdisplay) / 2; - args.usOverscanLeft = (adjusted_mode->crtc_hdisplay - mode->crtc_hdisplay) / 2; - args.usOverscanRight = (adjusted_mode->crtc_hdisplay - mode->crtc_hdisplay) / 2; + args.usOverscanTop = cpu_to_le16((adjusted_mode->crtc_vdisplay - mode->crtc_vdisplay) / 2); + args.usOverscanBottom = cpu_to_le16((adjusted_mode->crtc_vdisplay - mode->crtc_vdisplay) / 2); + args.usOverscanLeft = cpu_to_le16((adjusted_mode->crtc_hdisplay - mode->crtc_hdisplay) / 2); + args.usOverscanRight = cpu_to_le16((adjusted_mode->crtc_hdisplay - mode->crtc_hdisplay) / 2); break; case RMX_ASPECT: a1 = mode->crtc_vdisplay * adjusted_mode->crtc_hdisplay; a2 = adjusted_mode->crtc_vdisplay * mode->crtc_hdisplay; if (a1 > a2) { - args.usOverscanLeft = (adjusted_mode->crtc_hdisplay - (a2 / mode->crtc_vdisplay)) / 2; - args.usOverscanRight = (adjusted_mode->crtc_hdisplay - (a2 / mode->crtc_vdisplay)) / 2; + args.usOverscanLeft = cpu_to_le16((adjusted_mode->crtc_hdisplay - (a2 / mode->crtc_vdisplay)) / 2); + args.usOverscanRight = cpu_to_le16((adjusted_mode->crtc_hdisplay - (a2 / mode->crtc_vdisplay)) / 2); } else if (a2 > a1) { - args.usOverscanLeft = (adjusted_mode->crtc_vdisplay - (a1 / mode->crtc_hdisplay)) / 2; - args.usOverscanRight = (adjusted_mode->crtc_vdisplay - (a1 / mode->crtc_hdisplay)) / 2; + args.usOverscanLeft = cpu_to_le16((adjusted_mode->crtc_vdisplay - (a1 / mode->crtc_hdisplay)) / 2); + args.usOverscanRight = cpu_to_le16((adjusted_mode->crtc_vdisplay - (a1 / mode->crtc_hdisplay)) / 2); } break; case RMX_FULL: default: - args.usOverscanRight = radeon_crtc->h_border; - args.usOverscanLeft = radeon_crtc->h_border; - args.usOverscanBottom = radeon_crtc->v_border; - args.usOverscanTop = radeon_crtc->v_border; + args.usOverscanRight = cpu_to_le16(radeon_crtc->h_border); + args.usOverscanLeft = cpu_to_le16(radeon_crtc->h_border); + args.usOverscanBottom = cpu_to_le16(radeon_crtc->v_border); + args.usOverscanTop = cpu_to_le16(radeon_crtc->v_border); break; } atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); @@ -419,23 +419,23 @@ static void atombios_crtc_program_ss(struct drm_crtc *crtc, memset(&args, 0, sizeof(args)); if (ASIC_IS_DCE5(rdev)) { - args.v3.usSpreadSpectrumAmountFrac = 0; + args.v3.usSpreadSpectrumAmountFrac = cpu_to_le16(0); args.v3.ucSpreadSpectrumType = ss->type; switch (pll_id) { case ATOM_PPLL1: args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_P1PLL; - args.v3.usSpreadSpectrumAmount = ss->amount; - args.v3.usSpreadSpectrumStep = ss->step; + args.v3.usSpreadSpectrumAmount = cpu_to_le16(ss->amount); + args.v3.usSpreadSpectrumStep = cpu_to_le16(ss->step); break; case ATOM_PPLL2: args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_P2PLL; - args.v3.usSpreadSpectrumAmount = ss->amount; - args.v3.usSpreadSpectrumStep = ss->step; + args.v3.usSpreadSpectrumAmount = cpu_to_le16(ss->amount); + args.v3.usSpreadSpectrumStep = cpu_to_le16(ss->step); break; case ATOM_DCPLL: args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_DCPLL; - args.v3.usSpreadSpectrumAmount = 0; - args.v3.usSpreadSpectrumStep = 0; + args.v3.usSpreadSpectrumAmount = cpu_to_le16(0); + args.v3.usSpreadSpectrumStep = cpu_to_le16(0); break; case ATOM_PPLL_INVALID: return; @@ -447,18 +447,18 @@ static void atombios_crtc_program_ss(struct drm_crtc *crtc, switch (pll_id) { case ATOM_PPLL1: args.v2.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V2_P1PLL; - args.v2.usSpreadSpectrumAmount = ss->amount; - args.v2.usSpreadSpectrumStep = ss->step; + args.v2.usSpreadSpectrumAmount = cpu_to_le16(ss->amount); + args.v2.usSpreadSpectrumStep = cpu_to_le16(ss->step); break; case ATOM_PPLL2: args.v2.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V2_P2PLL; - args.v2.usSpreadSpectrumAmount = ss->amount; - args.v2.usSpreadSpectrumStep = ss->step; + args.v2.usSpreadSpectrumAmount = cpu_to_le16(ss->amount); + args.v2.usSpreadSpectrumStep = cpu_to_le16(ss->step); break; case ATOM_DCPLL: args.v2.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V2_DCPLL; - args.v2.usSpreadSpectrumAmount = 0; - args.v2.usSpreadSpectrumStep = 0; + args.v2.usSpreadSpectrumAmount = cpu_to_le16(0); + args.v2.usSpreadSpectrumStep = cpu_to_le16(0); break; case ATOM_PPLL_INVALID: return; @@ -721,7 +721,7 @@ static void atombios_crtc_set_dcpll(struct drm_crtc *crtc, * SetPixelClock provides the dividers */ args.v5.ucCRTC = ATOM_CRTC_INVALID; - args.v5.usPixelClock = dispclk; + args.v5.usPixelClock = cpu_to_le16(dispclk); args.v5.ucPpll = ATOM_DCPLL; break; case 6: diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index 5c1cc7ad9a15..02d5c415f499 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -88,7 +88,7 @@ static inline struct radeon_i2c_bus_rec radeon_lookup_i2c_gpio(struct radeon_dev /* some evergreen boards have bad data for this entry */ if (ASIC_IS_DCE4(rdev)) { if ((i == 7) && - (gpio->usClkMaskRegisterIndex == 0x1936) && + (le16_to_cpu(gpio->usClkMaskRegisterIndex) == 0x1936) && (gpio->sucI2cId.ucAccess == 0)) { gpio->sucI2cId.ucAccess = 0x97; gpio->ucDataMaskShift = 8; @@ -101,7 +101,7 @@ static inline struct radeon_i2c_bus_rec radeon_lookup_i2c_gpio(struct radeon_dev /* some DCE3 boards have bad data for this entry */ if (ASIC_IS_DCE3(rdev)) { if ((i == 4) && - (gpio->usClkMaskRegisterIndex == 0x1fda) && + (le16_to_cpu(gpio->usClkMaskRegisterIndex) == 0x1fda) && (gpio->sucI2cId.ucAccess == 0x94)) gpio->sucI2cId.ucAccess = 0x14; } @@ -172,7 +172,7 @@ void radeon_atombios_i2c_init(struct radeon_device *rdev) /* some evergreen boards have bad data for this entry */ if (ASIC_IS_DCE4(rdev)) { if ((i == 7) && - (gpio->usClkMaskRegisterIndex == 0x1936) && + (le16_to_cpu(gpio->usClkMaskRegisterIndex) == 0x1936) && (gpio->sucI2cId.ucAccess == 0)) { gpio->sucI2cId.ucAccess = 0x97; gpio->ucDataMaskShift = 8; @@ -185,7 +185,7 @@ void radeon_atombios_i2c_init(struct radeon_device *rdev) /* some DCE3 boards have bad data for this entry */ if (ASIC_IS_DCE3(rdev)) { if ((i == 4) && - (gpio->usClkMaskRegisterIndex == 0x1fda) && + (le16_to_cpu(gpio->usClkMaskRegisterIndex) == 0x1fda) && (gpio->sucI2cId.ucAccess == 0x94)) gpio->sucI2cId.ucAccess = 0x14; } @@ -252,7 +252,7 @@ static inline struct radeon_gpio_rec radeon_lookup_gpio(struct radeon_device *rd pin = &gpio_info->asGPIO_Pin[i]; if (id == pin->ucGPIO_ID) { gpio.id = pin->ucGPIO_ID; - gpio.reg = pin->usGpioPin_AIndex * 4; + gpio.reg = le16_to_cpu(pin->usGpioPin_AIndex) * 4; gpio.mask = (1 << pin->ucGpioPinBitShift); gpio.valid = true; break; @@ -1274,11 +1274,11 @@ bool radeon_atombios_sideport_present(struct radeon_device *rdev) data_offset); switch (crev) { case 1: - if (igp_info->info.ulBootUpMemoryClock) + if (le32_to_cpu(igp_info->info.ulBootUpMemoryClock)) return true; break; case 2: - if (igp_info->info_2.ulBootUpSidePortClock) + if (le32_to_cpu(igp_info->info_2.ulBootUpSidePortClock)) return true; break; default: @@ -1442,7 +1442,7 @@ bool radeon_atombios_get_asic_ss_info(struct radeon_device *rdev, for (i = 0; i < num_indices; i++) { if ((ss_info->info.asSpreadSpectrum[i].ucClockIndication == id) && - (clock <= ss_info->info.asSpreadSpectrum[i].ulTargetClockRange)) { + (clock <= le32_to_cpu(ss_info->info.asSpreadSpectrum[i].ulTargetClockRange))) { ss->percentage = le16_to_cpu(ss_info->info.asSpreadSpectrum[i].usSpreadSpectrumPercentage); ss->type = ss_info->info.asSpreadSpectrum[i].ucSpreadSpectrumMode; @@ -1456,7 +1456,7 @@ bool radeon_atombios_get_asic_ss_info(struct radeon_device *rdev, sizeof(ATOM_ASIC_SS_ASSIGNMENT_V2); for (i = 0; i < num_indices; i++) { if ((ss_info->info_2.asSpreadSpectrum[i].ucClockIndication == id) && - (clock <= ss_info->info_2.asSpreadSpectrum[i].ulTargetClockRange)) { + (clock <= le32_to_cpu(ss_info->info_2.asSpreadSpectrum[i].ulTargetClockRange))) { ss->percentage = le16_to_cpu(ss_info->info_2.asSpreadSpectrum[i].usSpreadSpectrumPercentage); ss->type = ss_info->info_2.asSpreadSpectrum[i].ucSpreadSpectrumMode; @@ -1470,7 +1470,7 @@ bool radeon_atombios_get_asic_ss_info(struct radeon_device *rdev, sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3); for (i = 0; i < num_indices; i++) { if ((ss_info->info_3.asSpreadSpectrum[i].ucClockIndication == id) && - (clock <= ss_info->info_3.asSpreadSpectrum[i].ulTargetClockRange)) { + (clock <= le32_to_cpu(ss_info->info_3.asSpreadSpectrum[i].ulTargetClockRange))) { ss->percentage = le16_to_cpu(ss_info->info_3.asSpreadSpectrum[i].usSpreadSpectrumPercentage); ss->type = ss_info->info_3.asSpreadSpectrum[i].ucSpreadSpectrumMode; @@ -1553,8 +1553,8 @@ struct radeon_encoder_atom_dig *radeon_atombios_get_lvds_info(struct if (misc & ATOM_DOUBLE_CLOCK_MODE) lvds->native_mode.flags |= DRM_MODE_FLAG_DBLSCAN; - lvds->native_mode.width_mm = lvds_info->info.sLCDTiming.usImageHSize; - lvds->native_mode.height_mm = lvds_info->info.sLCDTiming.usImageVSize; + lvds->native_mode.width_mm = le16_to_cpu(lvds_info->info.sLCDTiming.usImageHSize); + lvds->native_mode.height_mm = le16_to_cpu(lvds_info->info.sLCDTiming.usImageVSize); /* set crtc values */ drm_mode_set_crtcinfo(&lvds->native_mode, CRTC_INTERLACE_HALVE_V); @@ -1569,13 +1569,13 @@ struct radeon_encoder_atom_dig *radeon_atombios_get_lvds_info(struct lvds->linkb = false; /* parse the lcd record table */ - if (lvds_info->info.usModePatchTableOffset) { + if (le16_to_cpu(lvds_info->info.usModePatchTableOffset)) { ATOM_FAKE_EDID_PATCH_RECORD *fake_edid_record; ATOM_PANEL_RESOLUTION_PATCH_RECORD *panel_res_record; bool bad_record = false; u8 *record = (u8 *)(mode_info->atom_context->bios + data_offset + - lvds_info->info.usModePatchTableOffset); + le16_to_cpu(lvds_info->info.usModePatchTableOffset)); while (*record != ATOM_RECORD_END_TYPE) { switch (*record) { case LCD_MODE_PATCH_RECORD_MODE_TYPE: @@ -2189,7 +2189,7 @@ static u16 radeon_atombios_get_default_vddc(struct radeon_device *rdev) firmware_info = (union firmware_info *)(mode_info->atom_context->bios + data_offset); - vddc = firmware_info->info_14.usBootUpVDDCVoltage; + vddc = le16_to_cpu(firmware_info->info_14.usBootUpVDDCVoltage); } return vddc; @@ -2284,7 +2284,7 @@ static bool radeon_atombios_parse_pplib_clock_info(struct radeon_device *rdev, rdev->pm.power_state[state_index].clock_info[mode_index].voltage.type = VOLTAGE_SW; rdev->pm.power_state[state_index].clock_info[mode_index].voltage.voltage = - clock_info->evergreen.usVDDC; + le16_to_cpu(clock_info->evergreen.usVDDC); } else { sclk = le16_to_cpu(clock_info->r600.usEngineClockLow); sclk |= clock_info->r600.ucEngineClockHigh << 16; @@ -2295,7 +2295,7 @@ static bool radeon_atombios_parse_pplib_clock_info(struct radeon_device *rdev, rdev->pm.power_state[state_index].clock_info[mode_index].voltage.type = VOLTAGE_SW; rdev->pm.power_state[state_index].clock_info[mode_index].voltage.voltage = - clock_info->r600.usVDDC; + le16_to_cpu(clock_info->r600.usVDDC); } if (rdev->flags & RADEON_IS_IGP) { @@ -2408,13 +2408,13 @@ static int radeon_atombios_parse_power_table_6(struct radeon_device *rdev) radeon_atombios_add_pplib_thermal_controller(rdev, &power_info->pplib.sThermalController); state_array = (struct StateArray *) (mode_info->atom_context->bios + data_offset + - power_info->pplib.usStateArrayOffset); + le16_to_cpu(power_info->pplib.usStateArrayOffset)); clock_info_array = (struct ClockInfoArray *) (mode_info->atom_context->bios + data_offset + - power_info->pplib.usClockInfoArrayOffset); + le16_to_cpu(power_info->pplib.usClockInfoArrayOffset)); non_clock_info_array = (struct NonClockInfoArray *) (mode_info->atom_context->bios + data_offset + - power_info->pplib.usNonClockInfoArrayOffset); + le16_to_cpu(power_info->pplib.usNonClockInfoArrayOffset)); rdev->pm.power_state = kzalloc(sizeof(struct radeon_power_state) * state_array->ucNumEntries, GFP_KERNEL); if (!rdev->pm.power_state) @@ -2533,7 +2533,7 @@ uint32_t radeon_atom_get_engine_clock(struct radeon_device *rdev) int index = GetIndexIntoMasterTable(COMMAND, GetEngineClock); atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); - return args.ulReturnEngineClock; + return le32_to_cpu(args.ulReturnEngineClock); } uint32_t radeon_atom_get_memory_clock(struct radeon_device *rdev) @@ -2542,7 +2542,7 @@ uint32_t radeon_atom_get_memory_clock(struct radeon_device *rdev) int index = GetIndexIntoMasterTable(COMMAND, GetMemoryClock); atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); - return args.ulReturnMemoryClock; + return le32_to_cpu(args.ulReturnMemoryClock); } void radeon_atom_set_engine_clock(struct radeon_device *rdev, @@ -2551,7 +2551,7 @@ void radeon_atom_set_engine_clock(struct radeon_device *rdev, SET_ENGINE_CLOCK_PS_ALLOCATION args; int index = GetIndexIntoMasterTable(COMMAND, SetEngineClock); - args.ulTargetEngineClock = eng_clock; /* 10 khz */ + args.ulTargetEngineClock = cpu_to_le32(eng_clock); /* 10 khz */ atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); } @@ -2565,7 +2565,7 @@ void radeon_atom_set_memory_clock(struct radeon_device *rdev, if (rdev->flags & RADEON_IS_IGP) return; - args.ulTargetMemoryClock = mem_clock; /* 10 khz */ + args.ulTargetMemoryClock = cpu_to_le32(mem_clock); /* 10 khz */ atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); } diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c index 5b38b73ccd12..b4274883227f 100644 --- a/drivers/gpu/drm/radeon/radeon_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_encoders.c @@ -910,7 +910,7 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t args.v1.ucAction = action; if (action == ATOM_TRANSMITTER_ACTION_INIT) { - args.v1.usInitInfo = connector_object_id; + args.v1.usInitInfo = cpu_to_le16(connector_object_id); } else if (action == ATOM_TRANSMITTER_ACTION_SETUP_VSEMPH) { args.v1.asMode.ucLaneSel = lane_num; args.v1.asMode.ucLaneSet = lane_set; @@ -1140,7 +1140,7 @@ atombios_external_encoder_setup(struct drm_encoder *encoder, case 3: args.v3.sExtEncoder.ucAction = action; if (action == EXTERNAL_ENCODER_ACTION_V3_ENCODER_INIT) - args.v3.sExtEncoder.usConnectorId = connector_object_id; + args.v3.sExtEncoder.usConnectorId = cpu_to_le16(connector_object_id); else args.v3.sExtEncoder.usPixelClock = cpu_to_le16(radeon_encoder->pixel_clock / 10); args.v3.sExtEncoder.ucEncoderMode = atombios_get_encoder_mode(encoder); From 4eace7fdfa1f8ac2f0a833e12bd07eeb453ec9ef Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Cano?= Date: Fri, 11 Feb 2011 19:45:38 -0500 Subject: [PATCH 224/277] drm/radeon/kms: 6xx/7xx big endian fixes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit agd5f: minor cleanups Signed-off-by: Cédric Cano Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r600.c | 22 ++++++++++++++----- drivers/gpu/drm/radeon/r600_blit_kms.c | 25 ++++++++++++++++------ drivers/gpu/drm/radeon/r600_blit_shaders.c | 4 ++++ drivers/gpu/drm/radeon/r600d.h | 9 ++++---- drivers/gpu/drm/radeon/rv770.c | 6 +++++- drivers/gpu/drm/radeon/rv770d.h | 8 +++---- 6 files changed, 54 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 650672a0f5ad..de88624d5f87 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -2105,7 +2105,11 @@ static int r600_cp_load_microcode(struct radeon_device *rdev) r600_cp_stop(rdev); - WREG32(CP_RB_CNTL, RB_NO_UPDATE | RB_BLKSZ(15) | RB_BUFSZ(3)); + WREG32(CP_RB_CNTL, +#ifdef __BIG_ENDIAN + BUF_SWAP_32BIT | +#endif + RB_NO_UPDATE | RB_BLKSZ(15) | RB_BUFSZ(3)); /* Reset cp */ WREG32(GRBM_SOFT_RESET, SOFT_RESET_CP); @@ -2192,7 +2196,11 @@ int r600_cp_resume(struct radeon_device *rdev) WREG32(CP_RB_WPTR, 0); /* set the wb address whether it's enabled or not */ - WREG32(CP_RB_RPTR_ADDR, (rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFFFFFFFC); + WREG32(CP_RB_RPTR_ADDR, +#ifdef __BIG_ENDIAN + RB_RPTR_SWAP(2) | +#endif + ((rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFFFFFFFC)); WREG32(CP_RB_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFF); WREG32(SCRATCH_ADDR, ((rdev->wb.gpu_addr + RADEON_WB_SCRATCH_OFFSET) >> 8) & 0xFFFFFFFF); @@ -2628,7 +2636,11 @@ void r600_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib) { /* FIXME: implement */ radeon_ring_write(rdev, PACKET3(PACKET3_INDIRECT_BUFFER, 2)); - radeon_ring_write(rdev, ib->gpu_addr & 0xFFFFFFFC); + radeon_ring_write(rdev, +#ifdef __BIG_ENDIAN + (2 << 0) | +#endif + (ib->gpu_addr & 0xFFFFFFFC)); radeon_ring_write(rdev, upper_32_bits(ib->gpu_addr) & 0xFF); radeon_ring_write(rdev, ib->length_dw); } @@ -3297,8 +3309,8 @@ restart_ih: while (rptr != wptr) { /* wptr/rptr are in bytes! */ ring_index = rptr / 4; - src_id = rdev->ih.ring[ring_index] & 0xff; - src_data = rdev->ih.ring[ring_index + 1] & 0xfffffff; + src_id = le32_to_cpu(rdev->ih.ring[ring_index]) & 0xff; + src_data = le32_to_cpu(rdev->ih.ring[ring_index + 1]) & 0xfffffff; switch (src_id) { case 1: /* D1 vblank/vline */ diff --git a/drivers/gpu/drm/radeon/r600_blit_kms.c b/drivers/gpu/drm/radeon/r600_blit_kms.c index 86e5aa07f0db..69d94dd4db21 100644 --- a/drivers/gpu/drm/radeon/r600_blit_kms.c +++ b/drivers/gpu/drm/radeon/r600_blit_kms.c @@ -165,6 +165,9 @@ set_vtx_resource(struct radeon_device *rdev, u64 gpu_addr) u32 sq_vtx_constant_word2; sq_vtx_constant_word2 = ((upper_32_bits(gpu_addr) & 0xff) | (16 << 8)); +#ifdef __BIG_ENDIAN + sq_vtx_constant_word2 |= (2 << 30); +#endif radeon_ring_write(rdev, PACKET3(PACKET3_SET_RESOURCE, 7)); radeon_ring_write(rdev, 0x460); @@ -253,7 +256,11 @@ draw_auto(struct radeon_device *rdev) radeon_ring_write(rdev, DI_PT_RECTLIST); radeon_ring_write(rdev, PACKET3(PACKET3_INDEX_TYPE, 0)); - radeon_ring_write(rdev, DI_INDEX_SIZE_16_BIT); + radeon_ring_write(rdev, +#ifdef __BIG_ENDIAN + (2 << 2) | +#endif + DI_INDEX_SIZE_16_BIT); radeon_ring_write(rdev, PACKET3(PACKET3_NUM_INSTANCES, 0)); radeon_ring_write(rdev, 1); @@ -424,7 +431,11 @@ set_default_state(struct radeon_device *rdev) dwords = ALIGN(rdev->r600_blit.state_len, 0x10); gpu_addr = rdev->r600_blit.shader_gpu_addr + rdev->r600_blit.state_offset; radeon_ring_write(rdev, PACKET3(PACKET3_INDIRECT_BUFFER, 2)); - radeon_ring_write(rdev, gpu_addr & 0xFFFFFFFC); + radeon_ring_write(rdev, +#ifdef __BIG_ENDIAN + (2 << 0) | +#endif + (gpu_addr & 0xFFFFFFFC)); radeon_ring_write(rdev, upper_32_bits(gpu_addr) & 0xFF); radeon_ring_write(rdev, dwords); @@ -467,7 +478,7 @@ static inline uint32_t i2f(uint32_t input) int r600_blit_init(struct radeon_device *rdev) { u32 obj_size; - int r, dwords; + int i, r, dwords; void *ptr; u32 packet2s[16]; int num_packet2s = 0; @@ -486,7 +497,7 @@ int r600_blit_init(struct radeon_device *rdev) dwords = rdev->r600_blit.state_len; while (dwords & 0xf) { - packet2s[num_packet2s++] = PACKET2(0); + packet2s[num_packet2s++] = cpu_to_le32(PACKET2(0)); dwords++; } @@ -529,8 +540,10 @@ int r600_blit_init(struct radeon_device *rdev) if (num_packet2s) memcpy_toio(ptr + rdev->r600_blit.state_offset + (rdev->r600_blit.state_len * 4), packet2s, num_packet2s * 4); - memcpy(ptr + rdev->r600_blit.vs_offset, r6xx_vs, r6xx_vs_size * 4); - memcpy(ptr + rdev->r600_blit.ps_offset, r6xx_ps, r6xx_ps_size * 4); + for (i = 0; i < r6xx_vs_size; i++) + *(u32 *)((unsigned long)ptr + rdev->r600_blit.vs_offset + i * 4) = cpu_to_le32(r6xx_vs[i]); + for (i = 0; i < r6xx_ps_size; i++) + *(u32 *)((unsigned long)ptr + rdev->r600_blit.ps_offset + i * 4) = cpu_to_le32(r6xx_ps[i]); radeon_bo_kunmap(rdev->r600_blit.shader_obj); radeon_bo_unreserve(rdev->r600_blit.shader_obj); diff --git a/drivers/gpu/drm/radeon/r600_blit_shaders.c b/drivers/gpu/drm/radeon/r600_blit_shaders.c index e8151c1d55b2..2d1f6c5ee2a7 100644 --- a/drivers/gpu/drm/radeon/r600_blit_shaders.c +++ b/drivers/gpu/drm/radeon/r600_blit_shaders.c @@ -684,7 +684,11 @@ const u32 r6xx_vs[] = 0x00000000, 0x3c000000, 0x68cd1000, +#ifdef __BIG_ENDIAN + 0x000a0000, +#else 0x00080000, +#endif 0x00000000, }; diff --git a/drivers/gpu/drm/radeon/r600d.h b/drivers/gpu/drm/radeon/r600d.h index a5d898b4bad2..04bac0bbd3ec 100644 --- a/drivers/gpu/drm/radeon/r600d.h +++ b/drivers/gpu/drm/radeon/r600d.h @@ -154,13 +154,14 @@ #define ROQ_IB2_START(x) ((x) << 8) #define CP_RB_BASE 0xC100 #define CP_RB_CNTL 0xC104 -#define RB_BUFSZ(x) ((x)<<0) -#define RB_BLKSZ(x) ((x)<<8) -#define RB_NO_UPDATE (1<<27) -#define RB_RPTR_WR_ENA (1<<31) +#define RB_BUFSZ(x) ((x) << 0) +#define RB_BLKSZ(x) ((x) << 8) +#define RB_NO_UPDATE (1 << 27) +#define RB_RPTR_WR_ENA (1 << 31) #define BUF_SWAP_32BIT (2 << 16) #define CP_RB_RPTR 0x8700 #define CP_RB_RPTR_ADDR 0xC10C +#define RB_RPTR_SWAP(x) ((x) << 0) #define CP_RB_RPTR_ADDR_HI 0xC110 #define CP_RB_RPTR_WR 0xC108 #define CP_RB_WPTR 0xC114 diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index 2211a323db41..d8ba67690656 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -321,7 +321,11 @@ static int rv770_cp_load_microcode(struct radeon_device *rdev) return -EINVAL; r700_cp_stop(rdev); - WREG32(CP_RB_CNTL, RB_NO_UPDATE | (15 << 8) | (3 << 0)); + WREG32(CP_RB_CNTL, +#ifdef __BIG_ENDIAN + BUF_SWAP_32BIT | +#endif + RB_NO_UPDATE | RB_BLKSZ(15) | RB_BUFSZ(3)); /* Reset cp */ WREG32(GRBM_SOFT_RESET, SOFT_RESET_CP); diff --git a/drivers/gpu/drm/radeon/rv770d.h b/drivers/gpu/drm/radeon/rv770d.h index abc8cf5a3672..79fa588e9ed5 100644 --- a/drivers/gpu/drm/radeon/rv770d.h +++ b/drivers/gpu/drm/radeon/rv770d.h @@ -76,10 +76,10 @@ #define ROQ_IB1_START(x) ((x) << 0) #define ROQ_IB2_START(x) ((x) << 8) #define CP_RB_CNTL 0xC104 -#define RB_BUFSZ(x) ((x)<<0) -#define RB_BLKSZ(x) ((x)<<8) -#define RB_NO_UPDATE (1<<27) -#define RB_RPTR_WR_ENA (1<<31) +#define RB_BUFSZ(x) ((x) << 0) +#define RB_BLKSZ(x) ((x) << 8) +#define RB_NO_UPDATE (1 << 27) +#define RB_RPTR_WR_ENA (1 << 31) #define BUF_SWAP_32BIT (2 << 16) #define CP_RB_RPTR 0x8700 #define CP_RB_RPTR_ADDR 0xC10C From 0f234f5fdca1e31c7a6333c3633edc653cf3e598 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Sun, 13 Feb 2011 19:06:33 -0500 Subject: [PATCH 225/277] drm/radeon/kms: evergreen/ni big endian fixes (v2) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Based on 6xx/7xx endian fixes from Cédric Cano. v2: fix typo in shader Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/evergreen.c | 22 ++++++++++++++----- drivers/gpu/drm/radeon/evergreen_blit_kms.c | 19 +++++++++++----- .../gpu/drm/radeon/evergreen_blit_shaders.c | 8 +++++++ drivers/gpu/drm/radeon/evergreend.h | 1 + 4 files changed, 40 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index ffdc8332b76e..d270b3ff896b 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -1192,7 +1192,11 @@ void evergreen_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib) radeon_ring_write(rdev, 1); /* FIXME: implement */ radeon_ring_write(rdev, PACKET3(PACKET3_INDIRECT_BUFFER, 2)); - radeon_ring_write(rdev, ib->gpu_addr & 0xFFFFFFFC); + radeon_ring_write(rdev, +#ifdef __BIG_ENDIAN + (2 << 0) | +#endif + (ib->gpu_addr & 0xFFFFFFFC)); radeon_ring_write(rdev, upper_32_bits(ib->gpu_addr) & 0xFF); radeon_ring_write(rdev, ib->length_dw); } @@ -1207,7 +1211,11 @@ static int evergreen_cp_load_microcode(struct radeon_device *rdev) return -EINVAL; r700_cp_stop(rdev); - WREG32(CP_RB_CNTL, RB_NO_UPDATE | (15 << 8) | (3 << 0)); + WREG32(CP_RB_CNTL, +#ifdef __BIG_ENDIAN + BUF_SWAP_32BIT | +#endif + RB_NO_UPDATE | RB_BLKSZ(15) | RB_BUFSZ(3)); fw_data = (const __be32 *)rdev->pfp_fw->data; WREG32(CP_PFP_UCODE_ADDR, 0); @@ -1326,7 +1334,11 @@ int evergreen_cp_resume(struct radeon_device *rdev) WREG32(CP_RB_WPTR, 0); /* set the wb address wether it's enabled or not */ - WREG32(CP_RB_RPTR_ADDR, (rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFFFFFFFC); + WREG32(CP_RB_RPTR_ADDR, +#ifdef __BIG_ENDIAN + RB_RPTR_SWAP(2) | +#endif + ((rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFFFFFFFC)); WREG32(CP_RB_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFF); WREG32(SCRATCH_ADDR, ((rdev->wb.gpu_addr + RADEON_WB_SCRATCH_OFFSET) >> 8) & 0xFFFFFFFF); @@ -2627,8 +2639,8 @@ restart_ih: while (rptr != wptr) { /* wptr/rptr are in bytes! */ ring_index = rptr / 4; - src_id = rdev->ih.ring[ring_index] & 0xff; - src_data = rdev->ih.ring[ring_index + 1] & 0xfffffff; + src_id = le32_to_cpu(rdev->ih.ring[ring_index]) & 0xff; + src_data = le32_to_cpu(rdev->ih.ring[ring_index + 1]) & 0xfffffff; switch (src_id) { case 1: /* D1 vblank/vline */ diff --git a/drivers/gpu/drm/radeon/evergreen_blit_kms.c b/drivers/gpu/drm/radeon/evergreen_blit_kms.c index a1ba4b3053d0..a7b7a33eaf3a 100644 --- a/drivers/gpu/drm/radeon/evergreen_blit_kms.c +++ b/drivers/gpu/drm/radeon/evergreen_blit_kms.c @@ -133,6 +133,9 @@ set_vtx_resource(struct radeon_device *rdev, u64 gpu_addr) /* high addr, stride */ sq_vtx_constant_word2 = ((upper_32_bits(gpu_addr) & 0xff) | (16 << 8)); +#ifdef __BIG_ENDIAN + sq_vtx_constant_word2 |= (2 << 30); +#endif /* xyzw swizzles */ sq_vtx_constant_word3 = (0 << 3) | (1 << 6) | (2 << 9) | (3 << 12); @@ -221,7 +224,11 @@ draw_auto(struct radeon_device *rdev) radeon_ring_write(rdev, DI_PT_RECTLIST); radeon_ring_write(rdev, PACKET3(PACKET3_INDEX_TYPE, 0)); - radeon_ring_write(rdev, DI_INDEX_SIZE_16_BIT); + radeon_ring_write(rdev, +#ifdef __BIG_ENDIAN + (2 << 2) | +#endif + DI_INDEX_SIZE_16_BIT); radeon_ring_write(rdev, PACKET3(PACKET3_NUM_INSTANCES, 0)); radeon_ring_write(rdev, 1); @@ -541,7 +548,7 @@ static inline uint32_t i2f(uint32_t input) int evergreen_blit_init(struct radeon_device *rdev) { u32 obj_size; - int r, dwords; + int i, r, dwords; void *ptr; u32 packet2s[16]; int num_packet2s = 0; @@ -557,7 +564,7 @@ int evergreen_blit_init(struct radeon_device *rdev) dwords = rdev->r600_blit.state_len; while (dwords & 0xf) { - packet2s[num_packet2s++] = PACKET2(0); + packet2s[num_packet2s++] = cpu_to_le32(PACKET2(0)); dwords++; } @@ -598,8 +605,10 @@ int evergreen_blit_init(struct radeon_device *rdev) if (num_packet2s) memcpy_toio(ptr + rdev->r600_blit.state_offset + (rdev->r600_blit.state_len * 4), packet2s, num_packet2s * 4); - memcpy(ptr + rdev->r600_blit.vs_offset, evergreen_vs, evergreen_vs_size * 4); - memcpy(ptr + rdev->r600_blit.ps_offset, evergreen_ps, evergreen_ps_size * 4); + for (i = 0; i < evergreen_vs_size; i++) + *(u32 *)((unsigned long)ptr + rdev->r600_blit.vs_offset + i * 4) = cpu_to_le32(evergreen_vs[i]); + for (i = 0; i < evergreen_ps_size; i++) + *(u32 *)((unsigned long)ptr + rdev->r600_blit.ps_offset + i * 4) = cpu_to_le32(evergreen_ps[i]); radeon_bo_kunmap(rdev->r600_blit.shader_obj); radeon_bo_unreserve(rdev->r600_blit.shader_obj); diff --git a/drivers/gpu/drm/radeon/evergreen_blit_shaders.c b/drivers/gpu/drm/radeon/evergreen_blit_shaders.c index ef1d28c07fbf..3a10399e0066 100644 --- a/drivers/gpu/drm/radeon/evergreen_blit_shaders.c +++ b/drivers/gpu/drm/radeon/evergreen_blit_shaders.c @@ -311,11 +311,19 @@ const u32 evergreen_vs[] = 0x00000000, 0x3c000000, 0x67961001, +#ifdef __BIG_ENDIAN + 0x000a0000, +#else 0x00080000, +#endif 0x00000000, 0x1c000000, 0x67961000, +#ifdef __BIG_ENDIAN + 0x00020008, +#else 0x00000008, +#endif 0x00000000, }; diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h index afec1aca2a73..eb4acf4528ff 100644 --- a/drivers/gpu/drm/radeon/evergreend.h +++ b/drivers/gpu/drm/radeon/evergreend.h @@ -98,6 +98,7 @@ #define BUF_SWAP_32BIT (2 << 16) #define CP_RB_RPTR 0x8700 #define CP_RB_RPTR_ADDR 0xC10C +#define RB_RPTR_SWAP(x) ((x) << 0) #define CP_RB_RPTR_ADDR_HI 0xC110 #define CP_RB_RPTR_WR 0xC108 #define CP_RB_WPTR 0xC114 From 8fd1b84cc9d32e7e5c44e990a9c9e27504b232ed Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 10 Feb 2011 14:46:06 +1000 Subject: [PATCH 226/277] drm/radeon: fix race between GPU reset and TTM delayed delete thread. My evergreen has been in a remote PC for week and reset has never once saved me from certain doom, I finally relocated to the box with a serial cable and noticed an oops when the GPU resets, and the TTM delayed delete thread tries to remove something from the GTT. This stops the delayed delete thread from executing across the GPU reset handler, and woot I can GPU reset now. Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_device.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 0d478932b1a9..4954e2d6ffa2 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -936,8 +936,11 @@ int radeon_resume_kms(struct drm_device *dev) int radeon_gpu_reset(struct radeon_device *rdev) { int r; + int resched; radeon_save_bios_scratch_regs(rdev); + /* block TTM */ + resched = ttm_bo_lock_delayed_workqueue(&rdev->mman.bdev); radeon_suspend(rdev); r = radeon_asic_reset(rdev); @@ -946,6 +949,7 @@ int radeon_gpu_reset(struct radeon_device *rdev) radeon_resume(rdev); radeon_restore_bios_scratch_regs(rdev); drm_helper_resume_force_mode(rdev->ddev); + ttm_bo_unlock_delayed_workqueue(&rdev->mman.bdev, resched); return 0; } /* bad news, how to tell it to userspace ? */ From 1ea9dbf250ae6706400dc0e3d6e1cc7540830731 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 10 Feb 2011 14:51:33 -0500 Subject: [PATCH 227/277] drm/radeon/kms: use linear aligned for 6xx/7xx bo blits Not only is linear aligned supposedly more performant, linear general is only supported by the CB in single slice mode. The texture hardware doesn't support linear general, but I think the hw automatically upgrades it to linear aligned. Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r600_blit_kms.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/radeon/r600_blit_kms.c b/drivers/gpu/drm/radeon/r600_blit_kms.c index 69d94dd4db21..41f7aafc97c4 100644 --- a/drivers/gpu/drm/radeon/r600_blit_kms.c +++ b/drivers/gpu/drm/radeon/r600_blit_kms.c @@ -54,7 +54,7 @@ set_render_target(struct radeon_device *rdev, int format, if (h < 8) h = 8; - cb_color_info = ((format << 2) | (1 << 27)); + cb_color_info = ((format << 2) | (1 << 27) | (1 << 8)); pitch = (w / 8) - 1; slice = ((w * h) / 64) - 1; @@ -202,7 +202,7 @@ set_tex_resource(struct radeon_device *rdev, if (h < 1) h = 1; - sq_tex_resource_word0 = (1 << 0); + sq_tex_resource_word0 = (1 << 0) | (1 << 3); sq_tex_resource_word0 |= ((((pitch >> 3) - 1) << 8) | ((w - 1) << 19)); From 27dcfc102279867ef0080d3b27e0f8306cac53d1 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 10 Feb 2011 14:51:34 -0500 Subject: [PATCH 228/277] drm/radeon/kms: use linear aligned for evergreen/ni bo blits Not only is linear aligned supposedly more performant, linear general is only supported by the CB in single slice mode. The texture hardware doesn't support linear general, but I think the hw automatically upgrades it to linear aligned. Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/evergreen_blit_kms.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/radeon/evergreen_blit_kms.c b/drivers/gpu/drm/radeon/evergreen_blit_kms.c index a7b7a33eaf3a..2adfb03f479b 100644 --- a/drivers/gpu/drm/radeon/evergreen_blit_kms.c +++ b/drivers/gpu/drm/radeon/evergreen_blit_kms.c @@ -55,7 +55,7 @@ set_render_target(struct radeon_device *rdev, int format, if (h < 8) h = 8; - cb_color_info = ((format << 2) | (1 << 24)); + cb_color_info = ((format << 2) | (1 << 24) | (1 << 8)); pitch = (w / 8) - 1; slice = ((w * h) / 64) - 1; @@ -176,7 +176,7 @@ set_tex_resource(struct radeon_device *rdev, sq_tex_resource_word0 = (1 << 0); /* 2D */ sq_tex_resource_word0 |= ((((pitch >> 3) - 1) << 6) | ((w - 1) << 18)); - sq_tex_resource_word1 = ((h - 1) << 0); + sq_tex_resource_word1 = ((h - 1) << 0) | (1 << 28); /* xyzw swizzles */ sq_tex_resource_word4 = (0 << 16) | (1 << 19) | (2 << 22) | (3 << 25); From 501834349e872ed4115eea3beef65ca9eeb5528e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marek=20Ol=C5=A1=C3=A1k?= Date: Mon, 14 Feb 2011 01:01:09 +0100 Subject: [PATCH 229/277] drm/radeon/kms: fix tracking of BLENDCNTL, COLOR_CHANNEL_MASK, and GB_Z on r300 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Also move ZB_DEPTHCLEARVALUE to the list of safe regs. Signed-off-by: Marek Olšák Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r300.c | 3 +-- drivers/gpu/drm/radeon/reg_srcs/r300 | 3 +-- drivers/gpu/drm/radeon/reg_srcs/r420 | 4 +--- drivers/gpu/drm/radeon/reg_srcs/rs600 | 3 +-- drivers/gpu/drm/radeon/reg_srcs/rv515 | 4 +--- 5 files changed, 5 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c index 15f94648f274..862b61742b82 100644 --- a/drivers/gpu/drm/radeon/r300.c +++ b/drivers/gpu/drm/radeon/r300.c @@ -873,6 +873,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p, track->zb_dirty = true; break; case 0x4104: + /* TX_ENABLE */ for (i = 0; i < 16; i++) { bool enabled; @@ -1103,8 +1104,6 @@ static int r300_packet0_check(struct radeon_cs_parser *p, track->blend_read_enable = !!(idx_value & (1 << 2)); track->cb_dirty = true; break; - case 0x4f28: /* ZB_DEPTHCLEARVALUE */ - break; case 0x4f30: /* ZB_MASK_OFFSET */ case 0x4f34: /* ZB_ZMASK_PITCH */ case 0x4f44: /* ZB_HIZ_OFFSET */ diff --git a/drivers/gpu/drm/radeon/reg_srcs/r300 b/drivers/gpu/drm/radeon/reg_srcs/r300 index b506ec1cab4b..13a94e2ee03b 100644 --- a/drivers/gpu/drm/radeon/reg_srcs/r300 +++ b/drivers/gpu/drm/radeon/reg_srcs/r300 @@ -683,9 +683,7 @@ r300 0x4f60 0x4DF4 US_ALU_CONST_G_31 0x4DF8 US_ALU_CONST_B_31 0x4DFC US_ALU_CONST_A_31 -0x4E04 RB3D_BLENDCNTL_R3 0x4E08 RB3D_ABLENDCNTL_R3 -0x4E0C RB3D_COLOR_CHANNEL_MASK 0x4E10 RB3D_CONSTANT_COLOR 0x4E14 RB3D_COLOR_CLEAR_VALUE 0x4E18 RB3D_ROPCNTL_R3 @@ -715,4 +713,5 @@ r300 0x4f60 0x4F08 ZB_STENCILREFMASK 0x4F14 ZB_ZTOP 0x4F18 ZB_ZCACHE_CTLSTAT +0x4F28 ZB_DEPTHCLEARVALUE 0x4F58 ZB_ZPASS_DATA diff --git a/drivers/gpu/drm/radeon/reg_srcs/r420 b/drivers/gpu/drm/radeon/reg_srcs/r420 index 8c1214c2390f..5c95cf87f7f2 100644 --- a/drivers/gpu/drm/radeon/reg_srcs/r420 +++ b/drivers/gpu/drm/radeon/reg_srcs/r420 @@ -130,7 +130,6 @@ r420 0x4f60 0x401C GB_SELECT 0x4020 GB_AA_CONFIG 0x4024 GB_FIFO_SIZE -0x4028 GB_Z_PEQ_CONFIG 0x4100 TX_INVALTAGS 0x4200 GA_POINT_S0 0x4204 GA_POINT_T0 @@ -750,9 +749,7 @@ r420 0x4f60 0x4DF4 US_ALU_CONST_G_31 0x4DF8 US_ALU_CONST_B_31 0x4DFC US_ALU_CONST_A_31 -0x4E04 RB3D_BLENDCNTL_R3 0x4E08 RB3D_ABLENDCNTL_R3 -0x4E0C RB3D_COLOR_CHANNEL_MASK 0x4E10 RB3D_CONSTANT_COLOR 0x4E14 RB3D_COLOR_CLEAR_VALUE 0x4E18 RB3D_ROPCNTL_R3 @@ -782,4 +779,5 @@ r420 0x4f60 0x4F08 ZB_STENCILREFMASK 0x4F14 ZB_ZTOP 0x4F18 ZB_ZCACHE_CTLSTAT +0x4F28 ZB_DEPTHCLEARVALUE 0x4F58 ZB_ZPASS_DATA diff --git a/drivers/gpu/drm/radeon/reg_srcs/rs600 b/drivers/gpu/drm/radeon/reg_srcs/rs600 index 0828d80396f2..263109c1d0c8 100644 --- a/drivers/gpu/drm/radeon/reg_srcs/rs600 +++ b/drivers/gpu/drm/radeon/reg_srcs/rs600 @@ -749,9 +749,7 @@ rs600 0x6d40 0x4DF4 US_ALU_CONST_G_31 0x4DF8 US_ALU_CONST_B_31 0x4DFC US_ALU_CONST_A_31 -0x4E04 RB3D_BLENDCNTL_R3 0x4E08 RB3D_ABLENDCNTL_R3 -0x4E0C RB3D_COLOR_CHANNEL_MASK 0x4E10 RB3D_CONSTANT_COLOR 0x4E14 RB3D_COLOR_CLEAR_VALUE 0x4E18 RB3D_ROPCNTL_R3 @@ -781,4 +779,5 @@ rs600 0x6d40 0x4F08 ZB_STENCILREFMASK 0x4F14 ZB_ZTOP 0x4F18 ZB_ZCACHE_CTLSTAT +0x4F28 ZB_DEPTHCLEARVALUE 0x4F58 ZB_ZPASS_DATA diff --git a/drivers/gpu/drm/radeon/reg_srcs/rv515 b/drivers/gpu/drm/radeon/reg_srcs/rv515 index ef422bbacfc1..eeed003f14c7 100644 --- a/drivers/gpu/drm/radeon/reg_srcs/rv515 +++ b/drivers/gpu/drm/radeon/reg_srcs/rv515 @@ -164,7 +164,6 @@ rv515 0x6d40 0x401C GB_SELECT 0x4020 GB_AA_CONFIG 0x4024 GB_FIFO_SIZE -0x4028 GB_Z_PEQ_CONFIG 0x4100 TX_INVALTAGS 0x4114 SU_TEX_WRAP_PS3 0x4118 PS3_ENABLE @@ -461,9 +460,7 @@ rv515 0x6d40 0x4DF4 US_ALU_CONST_G_31 0x4DF8 US_ALU_CONST_B_31 0x4DFC US_ALU_CONST_A_31 -0x4E04 RB3D_BLENDCNTL_R3 0x4E08 RB3D_ABLENDCNTL_R3 -0x4E0C RB3D_COLOR_CHANNEL_MASK 0x4E10 RB3D_CONSTANT_COLOR 0x4E14 RB3D_COLOR_CLEAR_VALUE 0x4E18 RB3D_ROPCNTL_R3 @@ -496,4 +493,5 @@ rv515 0x6d40 0x4F14 ZB_ZTOP 0x4F18 ZB_ZCACHE_CTLSTAT 0x4F58 ZB_ZPASS_DATA +0x4F28 ZB_DEPTHCLEARVALUE 0x4FD4 ZB_STENCILREFMASK_BF From fff1ce4dc6113b6fdc4e3a815ca5fd229408f8ef Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marek=20Ol=C5=A1=C3=A1k?= Date: Mon, 14 Feb 2011 01:01:10 +0100 Subject: [PATCH 230/277] drm/radeon/kms: check AA resolve registers on r300 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is an important security fix because we allowed arbitrary values to be passed to AARESOLVE_OFFSET. This also puts the right buffer address in the register. Signed-off-by: Marek Olšák Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r100.c | 23 +++++++++++++++++++++++ drivers/gpu/drm/radeon/r100_track.h | 4 +++- drivers/gpu/drm/radeon/r300.c | 21 +++++++++++++++++++++ drivers/gpu/drm/radeon/r300_reg.h | 2 ++ drivers/gpu/drm/radeon/reg_srcs/r300 | 3 --- drivers/gpu/drm/radeon/reg_srcs/r420 | 3 --- drivers/gpu/drm/radeon/reg_srcs/rs600 | 3 --- drivers/gpu/drm/radeon/reg_srcs/rv515 | 3 --- 8 files changed, 49 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index fdf4bc67ae58..56deae5bf02e 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -3381,6 +3381,26 @@ int r100_cs_track_check(struct radeon_device *rdev, struct r100_cs_track *track) } track->zb_dirty = false; + if (track->aa_dirty && track->aaresolve) { + if (track->aa.robj == NULL) { + DRM_ERROR("[drm] No buffer for AA resolve buffer %d !\n", i); + return -EINVAL; + } + /* I believe the format comes from colorbuffer0. */ + size = track->aa.pitch * track->cb[0].cpp * track->maxy; + size += track->aa.offset; + if (size > radeon_bo_size(track->aa.robj)) { + DRM_ERROR("[drm] Buffer too small for AA resolve buffer %d " + "(need %lu have %lu) !\n", i, size, + radeon_bo_size(track->aa.robj)); + DRM_ERROR("[drm] AA resolve buffer %d (%u %u %u %u)\n", + i, track->aa.pitch, track->cb[0].cpp, + track->aa.offset, track->maxy); + return -EINVAL; + } + } + track->aa_dirty = false; + prim_walk = (track->vap_vf_cntl >> 4) & 0x3; if (track->vap_vf_cntl & (1 << 14)) { nverts = track->vap_alt_nverts; @@ -3455,6 +3475,7 @@ void r100_cs_track_clear(struct radeon_device *rdev, struct r100_cs_track *track track->cb_dirty = true; track->zb_dirty = true; track->tex_dirty = true; + track->aa_dirty = true; if (rdev->family < CHIP_R300) { track->num_cb = 1; @@ -3469,6 +3490,8 @@ void r100_cs_track_clear(struct radeon_device *rdev, struct r100_cs_track *track track->num_texture = 16; track->maxy = 4096; track->separate_cube = 0; + track->aaresolve = true; + track->aa.robj = NULL; } for (i = 0; i < track->num_cb; i++) { diff --git a/drivers/gpu/drm/radeon/r100_track.h b/drivers/gpu/drm/radeon/r100_track.h index ee85c4a1fc08..2fef9de7f363 100644 --- a/drivers/gpu/drm/radeon/r100_track.h +++ b/drivers/gpu/drm/radeon/r100_track.h @@ -66,15 +66,17 @@ struct r100_cs_track { struct r100_cs_track_array arrays[11]; struct r100_cs_track_cb cb[R300_MAX_CB]; struct r100_cs_track_cb zb; + struct r100_cs_track_cb aa; struct r100_cs_track_texture textures[R300_TRACK_MAX_TEXTURE]; bool z_enabled; bool separate_cube; bool zb_cb_clear; bool blend_read_enable; - bool cb_dirty; bool zb_dirty; bool tex_dirty; + bool aa_dirty; + bool aaresolve; }; int r100_cs_track_check(struct radeon_device *rdev, struct r100_cs_track *track); diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c index 862b61742b82..768c60ee4ab6 100644 --- a/drivers/gpu/drm/radeon/r300.c +++ b/drivers/gpu/drm/radeon/r300.c @@ -1104,6 +1104,27 @@ static int r300_packet0_check(struct radeon_cs_parser *p, track->blend_read_enable = !!(idx_value & (1 << 2)); track->cb_dirty = true; break; + case R300_RB3D_AARESOLVE_OFFSET: + r = r100_cs_packet_next_reloc(p, &reloc); + if (r) { + DRM_ERROR("No reloc for ib[%d]=0x%04X\n", + idx, reg); + r100_cs_dump_packet(p, pkt); + return r; + } + track->aa.robj = reloc->robj; + track->aa.offset = idx_value; + track->aa_dirty = true; + ib[idx] = idx_value + ((u32)reloc->lobj.gpu_offset); + break; + case R300_RB3D_AARESOLVE_PITCH: + track->aa.pitch = idx_value & 0x3FFE; + track->aa_dirty = true; + break; + case R300_RB3D_AARESOLVE_CTL: + track->aaresolve = idx_value & 0x1; + track->aa_dirty = true; + break; case 0x4f30: /* ZB_MASK_OFFSET */ case 0x4f34: /* ZB_ZMASK_PITCH */ case 0x4f44: /* ZB_HIZ_OFFSET */ diff --git a/drivers/gpu/drm/radeon/r300_reg.h b/drivers/gpu/drm/radeon/r300_reg.h index 1a0d5362cd79..f0bce399c9f3 100644 --- a/drivers/gpu/drm/radeon/r300_reg.h +++ b/drivers/gpu/drm/radeon/r300_reg.h @@ -1371,6 +1371,8 @@ #define R300_RB3D_COLORPITCH2 0x4E40 /* GUESS */ #define R300_RB3D_COLORPITCH3 0x4E44 /* GUESS */ +#define R300_RB3D_AARESOLVE_OFFSET 0x4E80 +#define R300_RB3D_AARESOLVE_PITCH 0x4E84 #define R300_RB3D_AARESOLVE_CTL 0x4E88 /* gap */ diff --git a/drivers/gpu/drm/radeon/reg_srcs/r300 b/drivers/gpu/drm/radeon/reg_srcs/r300 index 13a94e2ee03b..e8a1786b6426 100644 --- a/drivers/gpu/drm/radeon/reg_srcs/r300 +++ b/drivers/gpu/drm/radeon/reg_srcs/r300 @@ -704,9 +704,6 @@ r300 0x4f60 0x4E74 RB3D_CMASK_WRINDEX 0x4E78 RB3D_CMASK_DWORD 0x4E7C RB3D_CMASK_RDINDEX -0x4E80 RB3D_AARESOLVE_OFFSET -0x4E84 RB3D_AARESOLVE_PITCH -0x4E88 RB3D_AARESOLVE_CTL 0x4EA0 RB3D_DISCARD_SRC_PIXEL_LTE_THRESHOLD 0x4EA4 RB3D_DISCARD_SRC_PIXEL_GTE_THRESHOLD 0x4F04 ZB_ZSTENCILCNTL diff --git a/drivers/gpu/drm/radeon/reg_srcs/r420 b/drivers/gpu/drm/radeon/reg_srcs/r420 index 5c95cf87f7f2..722074e21e2f 100644 --- a/drivers/gpu/drm/radeon/reg_srcs/r420 +++ b/drivers/gpu/drm/radeon/reg_srcs/r420 @@ -770,9 +770,6 @@ r420 0x4f60 0x4E74 RB3D_CMASK_WRINDEX 0x4E78 RB3D_CMASK_DWORD 0x4E7C RB3D_CMASK_RDINDEX -0x4E80 RB3D_AARESOLVE_OFFSET -0x4E84 RB3D_AARESOLVE_PITCH -0x4E88 RB3D_AARESOLVE_CTL 0x4EA0 RB3D_DISCARD_SRC_PIXEL_LTE_THRESHOLD 0x4EA4 RB3D_DISCARD_SRC_PIXEL_GTE_THRESHOLD 0x4F04 ZB_ZSTENCILCNTL diff --git a/drivers/gpu/drm/radeon/reg_srcs/rs600 b/drivers/gpu/drm/radeon/reg_srcs/rs600 index 263109c1d0c8..d9f62866bbc1 100644 --- a/drivers/gpu/drm/radeon/reg_srcs/rs600 +++ b/drivers/gpu/drm/radeon/reg_srcs/rs600 @@ -770,9 +770,6 @@ rs600 0x6d40 0x4E74 RB3D_CMASK_WRINDEX 0x4E78 RB3D_CMASK_DWORD 0x4E7C RB3D_CMASK_RDINDEX -0x4E80 RB3D_AARESOLVE_OFFSET -0x4E84 RB3D_AARESOLVE_PITCH -0x4E88 RB3D_AARESOLVE_CTL 0x4EA0 RB3D_DISCARD_SRC_PIXEL_LTE_THRESHOLD 0x4EA4 RB3D_DISCARD_SRC_PIXEL_GTE_THRESHOLD 0x4F04 ZB_ZSTENCILCNTL diff --git a/drivers/gpu/drm/radeon/reg_srcs/rv515 b/drivers/gpu/drm/radeon/reg_srcs/rv515 index eeed003f14c7..911a8fbd32bb 100644 --- a/drivers/gpu/drm/radeon/reg_srcs/rv515 +++ b/drivers/gpu/drm/radeon/reg_srcs/rv515 @@ -481,9 +481,6 @@ rv515 0x6d40 0x4E74 RB3D_CMASK_WRINDEX 0x4E78 RB3D_CMASK_DWORD 0x4E7C RB3D_CMASK_RDINDEX -0x4E80 RB3D_AARESOLVE_OFFSET -0x4E84 RB3D_AARESOLVE_PITCH -0x4E88 RB3D_AARESOLVE_CTL 0x4EA0 RB3D_DISCARD_SRC_PIXEL_LTE_THRESHOLD 0x4EA4 RB3D_DISCARD_SRC_PIXEL_GTE_THRESHOLD 0x4EF8 RB3D_CONSTANT_COLOR_AR From c2049b3d29f47ed3750226dc51251a3404c85876 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Sun, 13 Feb 2011 18:42:41 -0500 Subject: [PATCH 231/277] drm/radeon/kms: improve 6xx/7xx CS error output Makes debugging CS rejections much easier. Signed-off-by: Alex Deucher Cc: stable@kernel.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r600_cs.c | 46 ++++++++++++++++++-------------- 1 file changed, 26 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c index 7831e0890210..153095fba62f 100644 --- a/drivers/gpu/drm/radeon/r600_cs.c +++ b/drivers/gpu/drm/radeon/r600_cs.c @@ -295,17 +295,18 @@ static inline int r600_cs_track_validate_cb(struct radeon_cs_parser *p, int i) } if (!IS_ALIGNED(pitch, pitch_align)) { - dev_warn(p->dev, "%s:%d cb pitch (%d) invalid\n", - __func__, __LINE__, pitch); + dev_warn(p->dev, "%s:%d cb pitch (%d, 0x%x, %d) invalid\n", + __func__, __LINE__, pitch, pitch_align, array_mode); return -EINVAL; } if (!IS_ALIGNED(height, height_align)) { - dev_warn(p->dev, "%s:%d cb height (%d) invalid\n", - __func__, __LINE__, height); + dev_warn(p->dev, "%s:%d cb height (%d, 0x%x, %d) invalid\n", + __func__, __LINE__, height, height_align, array_mode); return -EINVAL; } if (!IS_ALIGNED(base_offset, base_align)) { - dev_warn(p->dev, "%s offset[%d] 0x%llx not aligned\n", __func__, i, base_offset); + dev_warn(p->dev, "%s offset[%d] 0x%llx 0x%llx, %d not aligned\n", __func__, i, + base_offset, base_align, array_mode); return -EINVAL; } @@ -320,7 +321,10 @@ static inline int r600_cs_track_validate_cb(struct radeon_cs_parser *p, int i) * broken userspace. */ } else { - dev_warn(p->dev, "%s offset[%d] %d %d %lu too big\n", __func__, i, track->cb_color_bo_offset[i], tmp, radeon_bo_size(track->cb_color_bo[i])); + dev_warn(p->dev, "%s offset[%d] %d %d %d %lu too big\n", __func__, i, + array_mode, + track->cb_color_bo_offset[i], tmp, + radeon_bo_size(track->cb_color_bo[i])); return -EINVAL; } } @@ -455,17 +459,18 @@ static int r600_cs_track_check(struct radeon_cs_parser *p) } if (!IS_ALIGNED(pitch, pitch_align)) { - dev_warn(p->dev, "%s:%d db pitch (%d) invalid\n", - __func__, __LINE__, pitch); + dev_warn(p->dev, "%s:%d db pitch (%d, 0x%x, %d) invalid\n", + __func__, __LINE__, pitch, pitch_align, array_mode); return -EINVAL; } if (!IS_ALIGNED(height, height_align)) { - dev_warn(p->dev, "%s:%d db height (%d) invalid\n", - __func__, __LINE__, height); + dev_warn(p->dev, "%s:%d db height (%d, 0x%x, %d) invalid\n", + __func__, __LINE__, height, height_align, array_mode); return -EINVAL; } if (!IS_ALIGNED(base_offset, base_align)) { - dev_warn(p->dev, "%s offset[%d] 0x%llx not aligned\n", __func__, i, base_offset); + dev_warn(p->dev, "%s offset[%d] 0x%llx, 0x%llx, %d not aligned\n", __func__, i, + base_offset, base_align, array_mode); return -EINVAL; } @@ -473,9 +478,10 @@ static int r600_cs_track_check(struct radeon_cs_parser *p) nviews = G_028004_SLICE_MAX(track->db_depth_view) + 1; tmp = ntiles * bpe * 64 * nviews; if ((tmp + track->db_offset) > radeon_bo_size(track->db_bo)) { - dev_warn(p->dev, "z/stencil buffer too small (0x%08X %d %d %d -> %u have %lu)\n", - track->db_depth_size, ntiles, nviews, bpe, tmp + track->db_offset, - radeon_bo_size(track->db_bo)); + dev_warn(p->dev, "z/stencil buffer (%d) too small (0x%08X %d %d %d -> %u have %lu)\n", + array_mode, + track->db_depth_size, ntiles, nviews, bpe, tmp + track->db_offset, + radeon_bo_size(track->db_bo)); return -EINVAL; } } @@ -1227,18 +1233,18 @@ static inline int r600_check_texture_resource(struct radeon_cs_parser *p, u32 i /* XXX check height as well... */ if (!IS_ALIGNED(pitch, pitch_align)) { - dev_warn(p->dev, "%s:%d tex pitch (%d) invalid\n", - __func__, __LINE__, pitch); + dev_warn(p->dev, "%s:%d tex pitch (%d, 0x%x, %d) invalid\n", + __func__, __LINE__, pitch, pitch_align, G_038000_TILE_MODE(word0)); return -EINVAL; } if (!IS_ALIGNED(base_offset, base_align)) { - dev_warn(p->dev, "%s:%d tex base offset (0x%llx) invalid\n", - __func__, __LINE__, base_offset); + dev_warn(p->dev, "%s:%d tex base offset (0x%llx, 0x%llx, %d) invalid\n", + __func__, __LINE__, base_offset, base_align, G_038000_TILE_MODE(word0)); return -EINVAL; } if (!IS_ALIGNED(mip_offset, base_align)) { - dev_warn(p->dev, "%s:%d tex mip offset (0x%llx) invalid\n", - __func__, __LINE__, mip_offset); + dev_warn(p->dev, "%s:%d tex mip offset (0x%llx, 0x%llx, %d) invalid\n", + __func__, __LINE__, mip_offset, base_align, G_038000_TILE_MODE(word0)); return -EINVAL; } From 795abaf1e4e188c4171e3cd3dbb11a9fcacaf505 Mon Sep 17 00:00:00 2001 From: David Miller Date: Sun, 13 Feb 2011 16:37:07 -0800 Subject: [PATCH 232/277] klist: Fix object alignment on 64-bit. Commit c0e69a5bbc6f ("klist.c: bit 0 in pointer can't be used as flag") intended to make sure that all klist objects were at least pointer size aligned, but used the constant "4" which only works on 32-bit. Use "sizeof(void *)" which is correct in all cases. Signed-off-by: David S. Miller Acked-by: Jesper Nilsson Cc: stable Cc: Greg Kroah-Hartman Signed-off-by: Linus Torvalds --- include/linux/klist.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/klist.h b/include/linux/klist.h index e91a4e59b771..a370ce57cf1d 100644 --- a/include/linux/klist.h +++ b/include/linux/klist.h @@ -22,7 +22,7 @@ struct klist { struct list_head k_list; void (*get)(struct klist_node *); void (*put)(struct klist_node *); -} __attribute__ ((aligned (4))); +} __attribute__ ((aligned (sizeof(void *)))); #define KLIST_INIT(_name, _get, _put) \ { .k_lock = __SPIN_LOCK_UNLOCKED(_name.k_lock), \ From a646bd7f0824d3e0f02ff8d7410704f965de01bc Mon Sep 17 00:00:00 2001 From: Anatolij Gustschin Date: Mon, 31 Jan 2011 13:22:29 +0100 Subject: [PATCH 233/277] dma: ipu_idmac: do not lose valid received data in the irq handler Currently when two or more buffers are queued by the camera driver and so the double buffering is enabled in the idmac, we lose one frame comming from CSI since the reporting of arrival of the first frame is deferred by the DMAIC_7_EOF interrupt handler and reporting of the arrival of the last frame is not done at all. So when requesting N frames from the image sensor we actually receive N - 1 frames in user space. The reason for this behaviour is that the DMAIC_7_EOF interrupt handler misleadingly assumes that the CUR_BUF flag is pointing to the buffer used by the IDMAC. Actually it is not the case since the CUR_BUF flag will be flipped by the FSU when the FSU is sending the _NEW_FRM_RDY signal when new frame data is delivered by the CSI. When sending this singal, FSU updates the DMA_CUR_BUF and the DMA_BUFx_RDY flags: the DMA_CUR_BUF is flipped, the DMA_BUFx_RDY is cleared, indicating that the frame data is beeing written by the IDMAC to the pointed buffer. DMA_BUFx_RDY is supposed to be set to the ready state again by the MCU, when it has handled the received data. DMAIC_7_CUR_BUF flag won't be flipped here by the IPU, so waiting for this event in the EOF interrupt handler is wrong. Actually there is no spurious interrupt as described in the comments, this is the valid DMAIC_7_EOF interrupt indicating reception of the frame from CSI. The patch removes code that waits for flipping of the DMAIC_7_CUR_BUF flag in the DMAIC_7_EOF interrupt handler. As the comment in the current code denotes, this waiting doesn't help anyway. As a result of this removal the reporting of the first arrived frame is not deferred to the time of arrival of the next frame and the drivers software flag 'ichan->active_buffer' is in sync with DMAIC_7_CUR_BUF flag, so the reception of all requested frames works. This has been verified on the hardware which is triggering the image sensor by the programmable state machine, allowing to obtain exact number of frames. On this hardware we do not tolerate losing frames. This patch also removes resetting the DMA_BUFx_RDY flags of all channels in ipu_disable_channel() since transfers on other DMA channels might be triggered by other running tasks and the buffers should always be ready for data sending or reception. Signed-off-by: Anatolij Gustschin Reviewed-by: Guennadi Liakhovetski Tested-by: Guennadi Liakhovetski Signed-off-by: Dan Williams --- drivers/dma/ipu/ipu_idmac.c | 50 ------------------------------------- 1 file changed, 50 deletions(-) diff --git a/drivers/dma/ipu/ipu_idmac.c b/drivers/dma/ipu/ipu_idmac.c index cb26ee9773d6..c1a125e7d1df 100644 --- a/drivers/dma/ipu/ipu_idmac.c +++ b/drivers/dma/ipu/ipu_idmac.c @@ -1145,29 +1145,6 @@ static int ipu_disable_channel(struct idmac *idmac, struct idmac_channel *ichan, reg = idmac_read_icreg(ipu, IDMAC_CHA_EN); idmac_write_icreg(ipu, reg & ~chan_mask, IDMAC_CHA_EN); - /* - * Problem (observed with channel DMAIC_7): after enabling the channel - * and initialising buffers, there comes an interrupt with current still - * pointing at buffer 0, whereas it should use buffer 0 first and only - * generate an interrupt when it is done, then current should already - * point to buffer 1. This spurious interrupt also comes on channel - * DMASDC_0. With DMAIC_7 normally, is we just leave the ISR after the - * first interrupt, there comes the second with current correctly - * pointing to buffer 1 this time. But sometimes this second interrupt - * doesn't come and the channel hangs. Clearing BUFx_RDY when disabling - * the channel seems to prevent the channel from hanging, but it doesn't - * prevent the spurious interrupt. This might also be unsafe. Think - * about the IDMAC controller trying to switch to a buffer, when we - * clear the ready bit, and re-enable it a moment later. - */ - reg = idmac_read_ipureg(ipu, IPU_CHA_BUF0_RDY); - idmac_write_ipureg(ipu, 0, IPU_CHA_BUF0_RDY); - idmac_write_ipureg(ipu, reg & ~(1UL << channel), IPU_CHA_BUF0_RDY); - - reg = idmac_read_ipureg(ipu, IPU_CHA_BUF1_RDY); - idmac_write_ipureg(ipu, 0, IPU_CHA_BUF1_RDY); - idmac_write_ipureg(ipu, reg & ~(1UL << channel), IPU_CHA_BUF1_RDY); - spin_unlock_irqrestore(&ipu->lock, flags); return 0; @@ -1246,33 +1223,6 @@ static irqreturn_t idmac_interrupt(int irq, void *dev_id) /* Other interrupts do not interfere with this channel */ spin_lock(&ichan->lock); - if (unlikely(chan_id != IDMAC_SDC_0 && chan_id != IDMAC_SDC_1 && - ((curbuf >> chan_id) & 1) == ichan->active_buffer && - !list_is_last(ichan->queue.next, &ichan->queue))) { - int i = 100; - - /* This doesn't help. See comment in ipu_disable_channel() */ - while (--i) { - curbuf = idmac_read_ipureg(&ipu_data, IPU_CHA_CUR_BUF); - if (((curbuf >> chan_id) & 1) != ichan->active_buffer) - break; - cpu_relax(); - } - - if (!i) { - spin_unlock(&ichan->lock); - dev_dbg(dev, - "IRQ on active buffer on channel %x, active " - "%d, ready %x, %x, current %x!\n", chan_id, - ichan->active_buffer, ready0, ready1, curbuf); - return IRQ_NONE; - } else - dev_dbg(dev, - "Buffer deactivated on channel %x, active " - "%d, ready %x, %x, current %x, rest %d!\n", chan_id, - ichan->active_buffer, ready0, ready1, curbuf, i); - } - if (unlikely((ichan->active_buffer && (ready1 >> chan_id) & 1) || (!ichan->active_buffer && (ready0 >> chan_id) & 1) )) { From 4abed0af1e9bc911f28bb525eece522d94d047f2 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Mon, 14 Feb 2011 00:42:08 -0800 Subject: [PATCH 234/277] dmaengine: add slave-dma maintainer Slave-dma has become the predominant usage model for dmaengine and needs special attention. Memory-to-memory dma usage cases will continue to be maintained by Dan. Cc: Alan Cox Acked-by: Vinod Koul Signed-off-by: Dan Williams --- MAINTAINERS | 1 + 1 file changed, 1 insertion(+) diff --git a/MAINTAINERS b/MAINTAINERS index 55592f8b672c..e2f0992ea4a5 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2124,6 +2124,7 @@ S: Supported F: fs/dlm/ DMA GENERIC OFFLOAD ENGINE SUBSYSTEM +M: Vinod Koul M: Dan Williams S: Supported F: drivers/dma/ From 1c9d16e35911090dee3f9313e6af13af623d66ee Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Fri, 11 Feb 2011 18:17:54 +0100 Subject: [PATCH 235/277] x86: Fix mwait_usable section mismatch We use it in non __cpuinit code now too so drop marker. Signed-off-by: Borislav Petkov LKML-Reference: <20110211171754.GA21047@aftab> Signed-off-by: Ingo Molnar --- arch/x86/include/asm/cpu.h | 2 +- arch/x86/kernel/process.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/include/asm/cpu.h b/arch/x86/include/asm/cpu.h index 6e6e7558e702..4564c8e28a33 100644 --- a/arch/x86/include/asm/cpu.h +++ b/arch/x86/include/asm/cpu.h @@ -32,6 +32,6 @@ extern void arch_unregister_cpu(int); DECLARE_PER_CPU(int, cpu_state); -int __cpuinit mwait_usable(const struct cpuinfo_x86 *); +int mwait_usable(const struct cpuinfo_x86 *); #endif /* _ASM_X86_CPU_H */ diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index e764fc05d700..3c189e9accd3 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -506,7 +506,7 @@ static void poll_idle(void) #define MWAIT_ECX_EXTENDED_INFO 0x01 #define MWAIT_EDX_C1 0xf0 -int __cpuinit mwait_usable(const struct cpuinfo_x86 *c) +int mwait_usable(const struct cpuinfo_x86 *c) { u32 eax, ebx, ecx, edx; From 7211da17785536bacd3171a28bc6a3853c8bb477 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Mon, 14 Feb 2011 08:13:20 -0700 Subject: [PATCH 236/277] Revert "dt: add documentation of ARM dt boot interface" This reverts commit 9830fcd6f6a4781d8b46d2b35c13b39f30915c63. The ARM dt support has not been merged yet; this documentation update was premature. Signed-off-by: Grant Likely --- Documentation/arm/Booting | 33 ++------------- .../devicetree/booting-without-of.txt | 40 ------------------- 2 files changed, 4 insertions(+), 69 deletions(-) diff --git a/Documentation/arm/Booting b/Documentation/arm/Booting index 4e686a2ed91e..76850295af8f 100644 --- a/Documentation/arm/Booting +++ b/Documentation/arm/Booting @@ -65,19 +65,13 @@ looks at the connected hardware is beyond the scope of this document. The boot loader must ultimately be able to provide a MACH_TYPE_xxx value to the kernel. (see linux/arch/arm/tools/mach-types). -4. Setup boot data ------------------- + +4. Setup the kernel tagged list +------------------------------- Existing boot loaders: OPTIONAL, HIGHLY RECOMMENDED New boot loaders: MANDATORY -The boot loader must provide either a tagged list or a dtb image for -passing configuration data to the kernel. The physical address of the -boot data is passed to the kernel in register r2. - -4a. Setup the kernel tagged list --------------------------------- - The boot loader must create and initialise the kernel tagged list. A valid tagged list starts with ATAG_CORE and ends with ATAG_NONE. The ATAG_CORE tag may or may not be empty. An empty ATAG_CORE tag @@ -107,24 +101,6 @@ The tagged list must be placed in a region of memory where neither the kernel decompressor nor initrd 'bootp' program will overwrite it. The recommended placement is in the first 16KiB of RAM. -4b. Setup the device tree -------------------------- - -The boot loader must load a device tree image (dtb) into system ram -at a 64bit aligned address and initialize it with the boot data. The -dtb format is documented in Documentation/devicetree/booting-without-of.txt. -The kernel will look for the dtb magic value of 0xd00dfeed at the dtb -physical address to determine if a dtb has been passed instead of a -tagged list. - -The boot loader must pass at a minimum the size and location of the -system memory, and the root filesystem location. The dtb must be -placed in a region of memory where the kernel decompressor will not -overwrite it. The recommended placement is in the first 16KiB of RAM -with the caveat that it may not be located at physical address 0 since -the kernel interprets a value of 0 in r2 to mean neither a tagged list -nor a dtb were passed. - 5. Calling the kernel image --------------------------- @@ -149,8 +125,7 @@ In either case, the following conditions must be met: - CPU register settings r0 = 0, r1 = machine type number discovered in (3) above. - r2 = physical address of tagged list in system RAM, or - physical address of device tree block (dtb) in system RAM + r2 = physical address of tagged list in system RAM. - CPU mode All forms of interrupts must be disabled (IRQs and FIQs) diff --git a/Documentation/devicetree/booting-without-of.txt b/Documentation/devicetree/booting-without-of.txt index 9381a1481027..28b1c9d3d351 100644 --- a/Documentation/devicetree/booting-without-of.txt +++ b/Documentation/devicetree/booting-without-of.txt @@ -13,7 +13,6 @@ Table of Contents I - Introduction 1) Entry point for arch/powerpc - 2) Entry point for arch/arm II - The DT block format 1) Header @@ -226,45 +225,6 @@ it with special cases. cannot support both configurations with Book E and configurations with classic Powerpc architectures. -2) Entry point for arch/arm ---------------------------- - - There is one single entry point to the kernel, at the start - of the kernel image. That entry point supports two calling - conventions. A summary of the interface is described here. A full - description of the boot requirements is documented in - Documentation/arm/Booting - - a) ATAGS interface. Minimal information is passed from firmware - to the kernel with a tagged list of predefined parameters. - - r0 : 0 - - r1 : Machine type number - - r2 : Physical address of tagged list in system RAM - - b) Entry with a flattened device-tree block. Firmware loads the - physical address of the flattened device tree block (dtb) into r2, - r1 is not used, but it is considered good practise to use a valid - machine number as described in Documentation/arm/Booting. - - r0 : 0 - - r1 : Valid machine type number. When using a device tree, - a single machine type number will often be assigned to - represent a class or family of SoCs. - - r2 : physical pointer to the device-tree block - (defined in chapter II) in RAM. Device tree can be located - anywhere in system RAM, but it should be aligned on a 32 bit - boundary. - - The kernel will differentiate between ATAGS and device tree booting by - reading the memory pointed to by r1 and looking for either the flattened - device tree block magic value (0xd00dfeed) or the ATAG_CORE value at - offset 0x4 from r2 (0x54410001). - II - The DT block format ======================== From 541ce98c10111dae7604543dda6c6f7e7a6015d8 Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Fri, 14 Jan 2011 20:00:02 -0500 Subject: [PATCH 237/277] nfsd: don't leak dentry count on mnt_want_write failure The exit cleanup isn't quite right here. Signed-off-by: J. Bruce Fields --- fs/nfsd/vfs.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 641117f2188d..fda3be237773 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -1812,22 +1812,22 @@ nfsd_unlink(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, host_err = mnt_want_write(fhp->fh_export->ex_path.mnt); if (host_err) - goto out_nfserr; + goto out_put; host_err = nfsd_break_lease(rdentry->d_inode); if (host_err) - goto out_put; + goto out_drop_write; if (type != S_IFDIR) host_err = vfs_unlink(dirp, rdentry); else host_err = vfs_rmdir(dirp, rdentry); + if (!host_err) + host_err = commit_metadata(fhp); +out_drop_write: + mnt_drop_write(fhp->fh_export->ex_path.mnt); out_put: dput(rdentry); - if (!host_err) - host_err = commit_metadata(fhp); - - mnt_drop_write(fhp->fh_export->ex_path.mnt); out_nfserr: err = nfserrno(host_err); out: From 0af3f814ccf0a13d3e01e8115b96f1824379fc72 Mon Sep 17 00:00:00 2001 From: Benny Halevy Date: Thu, 13 Jan 2011 11:25:31 +0200 Subject: [PATCH 238/277] NFSD: use nfserr for status after decode_cb_op_status Bugs introduced in 85a56480191ca9f08fc775c129b9eb5c8c1f2c05 "NFSD: Update XDR decoders in NFSv4 callback client" Cc: Chuck Lever Signed-off-by: Benny Halevy Signed-off-by: J. Bruce Fields --- fs/nfsd/nfs4callback.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c index 3be975e18919..cde36cb0f348 100644 --- a/fs/nfsd/nfs4callback.c +++ b/fs/nfsd/nfs4callback.c @@ -484,7 +484,7 @@ static int decode_cb_sequence4res(struct xdr_stream *xdr, out: return status; out_default: - return nfs_cb_stat_to_errno(status); + return nfs_cb_stat_to_errno(nfserr); } /* @@ -564,11 +564,9 @@ static int nfs4_xdr_dec_cb_recall(struct rpc_rqst *rqstp, if (unlikely(status)) goto out; if (unlikely(nfserr != NFS4_OK)) - goto out_default; + status = nfs_cb_stat_to_errno(nfserr); out: return status; -out_default: - return nfs_cb_stat_to_errno(status); } /* From 3aa6e0aa8ab3e64bbfba092c64d42fd1d006b124 Mon Sep 17 00:00:00 2001 From: Konstantin Khorenko Date: Tue, 1 Feb 2011 17:16:29 +0300 Subject: [PATCH 239/277] NFSD: memory corruption due to writing beyond the stat array If nfsd fails to find an exported via NFS file in the readahead cache, it should increment corresponding nfsdstats counter (ra_depth[10]), but due to a bug it may instead write to ra_depth[11], corrupting the following field. In a kernel with NFSDv4 compiled in the corruption takes the form of an increment of a counter of the number of NFSv4 operation 0's received; since there is no operation 0, this is harmless. In a kernel with NFSDv4 disabled it corrupts whatever happens to be in the memory beyond nfsdstats. Signed-off-by: Konstantin Khorenko Cc: stable@kernel.org Signed-off-by: J. Bruce Fields --- fs/nfsd/vfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index fda3be237773..30c73f8a5791 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -808,7 +808,7 @@ nfsd_get_raparms(dev_t dev, ino_t ino) if (ra->p_count == 0) frap = rap; } - depth = nfsdstats.ra_size*11/10; + depth = nfsdstats.ra_size; if (!frap) { spin_unlock(&rab->pb_lock); return NULL; From 6b57d9c86d0ab11c091b6db2edff8b5553fd445b Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Mon, 31 Jan 2011 11:54:04 -0500 Subject: [PATCH 240/277] nfsd4: split up nfsd_break_deleg_cb We'll be adding some more code here soon. Signed-off-by: J. Bruce Fields --- fs/nfsd/nfs4state.c | 34 ++++++++++++++++------------------ 1 file changed, 16 insertions(+), 18 deletions(-) diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index d98d0213285d..ceb66170fda3 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -2329,23 +2329,8 @@ nfs4_file_downgrade(struct nfs4_file *fp, unsigned int share_access) nfs4_file_put_access(fp, O_RDONLY); } -/* - * Spawn a thread to perform a recall on the delegation represented - * by the lease (file_lock) - * - * Called from break_lease() with lock_flocks() held. - * Note: we assume break_lease will only call this *once* for any given - * lease. - */ -static -void nfsd_break_deleg_cb(struct file_lock *fl) +static void nfsd_break_one_deleg(struct nfs4_delegation *dp) { - struct nfs4_delegation *dp = (struct nfs4_delegation *)fl->fl_owner; - - dprintk("NFSD nfsd_break_deleg_cb: dp %p fl %p\n",dp,fl); - if (!dp) - return; - /* We're assuming the state code never drops its reference * without first removing the lease. Since we're in this lease * callback (and since the lease code is serialized by the kernel @@ -2360,15 +2345,28 @@ void nfsd_break_deleg_cb(struct file_lock *fl) /* only place dl_time is set. protected by lock_flocks*/ dp->dl_time = get_seconds(); + nfsd4_cb_recall(dp); +} + +/* + * Called from break_lease() with lock_flocks() held. + * Note: we assume break_lease will only call this *once* for any given + * lease. + */ +static void nfsd_break_deleg_cb(struct file_lock *fl) +{ + struct nfs4_delegation *dp = (struct nfs4_delegation *)fl->fl_owner; + + BUG_ON(!dp); /* * We don't want the locks code to timeout the lease for us; * we'll remove it ourself if the delegation isn't returned - * in time. + * in time: */ fl->fl_break_time = 0; + nfsd_break_one_deleg(dp); dp->dl_file->fi_had_conflict = true; - nfsd4_cb_recall(dp); } static From 22d38c4c10e8344aa406897d99a35d585d2cb77d Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Mon, 31 Jan 2011 11:55:12 -0500 Subject: [PATCH 241/277] nfsd4: add helper function for lease setup Signed-off-by: J. Bruce Fields --- fs/nfsd/nfs4state.c | 33 +++++++++++++++++++++------------ 1 file changed, 21 insertions(+), 12 deletions(-) diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index ceb66170fda3..65978a9aa877 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -2639,6 +2639,26 @@ static bool nfsd4_cb_channel_good(struct nfs4_client *clp) return clp->cl_minorversion && clp->cl_cb_state == NFSD4_CB_UNKNOWN; } +static struct file_lock *nfs4_alloc_init_lease(struct nfs4_delegation *dp, int flag) +{ + struct file_lock *fl; + + fl = locks_alloc_lock(); + if (!fl) + return NULL; + locks_init_lock(fl); + fl->fl_lmops = &nfsd_lease_mng_ops; + fl->fl_flags = FL_LEASE; + fl->fl_type = flag == NFS4_OPEN_DELEGATE_READ? F_RDLCK: F_WRLCK; + fl->fl_end = OFFSET_MAX; + fl->fl_owner = (fl_owner_t)dp; + fl->fl_file = dp->dl_vfs_file; + BUG_ON(!fl->fl_file); + fl->fl_pid = current->tgid; + dp->dl_flock = fl; + return fl; +} + /* * Attempt to hand out a delegation. */ @@ -2684,20 +2704,9 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_sta goto out; } status = -ENOMEM; - fl = locks_alloc_lock(); + fl = nfs4_alloc_init_lease(dp, flag); if (!fl) goto out; - locks_init_lock(fl); - fl->fl_lmops = &nfsd_lease_mng_ops; - fl->fl_flags = FL_LEASE; - fl->fl_type = flag == NFS4_OPEN_DELEGATE_READ? F_RDLCK: F_WRLCK; - fl->fl_end = OFFSET_MAX; - fl->fl_owner = (fl_owner_t)dp; - fl->fl_file = find_readable_file(stp->st_file); - BUG_ON(!fl->fl_file); - fl->fl_pid = current->tgid; - dp->dl_flock = fl; - /* vfs_setlease checks to see if delegation should be handed out. * the lock_manager callback fl_change is used */ From dd239cc05f0ad9f582dd83d88a4fb5edcc57a026 Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Mon, 31 Jan 2011 17:14:55 -0500 Subject: [PATCH 242/277] nfsd4: fix leak on allocation error Also share some common exit code. Signed-off-by: J. Bruce Fields --- fs/nfsd/nfs4state.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 65978a9aa877..099d6fa64f7f 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -2699,14 +2699,12 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_sta } dp = alloc_init_deleg(sop->so_client, stp, fh, flag); - if (dp == NULL) { - flag = NFS4_OPEN_DELEGATE_NONE; - goto out; - } + if (dp == NULL) + goto out_no_deleg; status = -ENOMEM; fl = nfs4_alloc_init_lease(dp, flag); if (!fl) - goto out; + goto out_free; /* vfs_setlease checks to see if delegation should be handed out. * the lock_manager callback fl_change is used */ @@ -2714,9 +2712,7 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_sta dprintk("NFSD: setlease failed [%d], no delegation\n", status); dp->dl_flock = NULL; locks_free_lock(fl); - unhash_delegation(dp); - flag = NFS4_OPEN_DELEGATE_NONE; - goto out; + goto out_free; } memcpy(&open->op_delegate_stateid, &dp->dl_stateid, sizeof(dp->dl_stateid)); @@ -2729,6 +2725,12 @@ out: && open->op_delegate_type != NFS4_OPEN_DELEGATE_NONE) dprintk("NFSD: WARNING: refusing delegation reclaim\n"); open->op_delegate_type = flag; + return; +out_free: + unhash_delegation(dp); +out_no_deleg: + flag = NFS4_OPEN_DELEGATE_NONE; + goto out; } /* From edab9782b5a16abb8d139d261e81e13ef0be35a9 Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Mon, 31 Jan 2011 17:58:10 -0500 Subject: [PATCH 243/277] nfsd4: split lease setting into separate function Splitting some code into a separate function which we'll be adding some more to. Signed-off-by: J. Bruce Fields --- fs/nfsd/nfs4state.c | 32 +++++++++++++++++++------------- 1 file changed, 19 insertions(+), 13 deletions(-) diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 099d6fa64f7f..dbb2141cf88f 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -2659,6 +2659,23 @@ static struct file_lock *nfs4_alloc_init_lease(struct nfs4_delegation *dp, int f return fl; } +static int nfs4_setlease(struct nfs4_delegation *dp, int flag) +{ + struct file_lock *fl; + int status; + + fl = nfs4_alloc_init_lease(dp, flag); + if (!fl) + return -ENOMEM; + status = vfs_setlease(dp->dl_vfs_file, fl->fl_type, &fl); + if (status) { + dp->dl_flock = NULL; + locks_free_lock(fl); + return -ENOMEM; + } + return 0; +} + /* * Attempt to hand out a delegation. */ @@ -2668,7 +2685,6 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_sta struct nfs4_delegation *dp; struct nfs4_stateowner *sop = stp->st_stateowner; int cb_up; - struct file_lock *fl; int status, flag = 0; cb_up = nfsd4_cb_channel_good(sop->so_client); @@ -2701,19 +2717,9 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_sta dp = alloc_init_deleg(sop->so_client, stp, fh, flag); if (dp == NULL) goto out_no_deleg; - status = -ENOMEM; - fl = nfs4_alloc_init_lease(dp, flag); - if (!fl) + status = nfs4_setlease(dp, flag); + if (status) goto out_free; - /* vfs_setlease checks to see if delegation should be handed out. - * the lock_manager callback fl_change is used - */ - if ((status = vfs_setlease(fl->fl_file, fl->fl_type, &fl))) { - dprintk("NFSD: setlease failed [%d], no delegation\n", status); - dp->dl_flock = NULL; - locks_free_lock(fl); - goto out_free; - } memcpy(&open->op_delegate_stateid, &dp->dl_stateid, sizeof(dp->dl_stateid)); From 65bc58f5187e2ff4011ef1bd3082e83cd1b036f1 Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Mon, 7 Feb 2011 15:44:12 -0500 Subject: [PATCH 244/277] nfsd4: remove unused deleg dprintk's. These aren't all that useful, and get in the way of the next steps. Signed-off-by: J. Bruce Fields --- fs/nfsd/nfs4state.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index dbb2141cf88f..d978192838a3 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -958,8 +958,6 @@ expire_client(struct nfs4_client *clp) spin_lock(&recall_lock); while (!list_empty(&clp->cl_delegations)) { dp = list_entry(clp->cl_delegations.next, struct nfs4_delegation, dl_perclnt); - dprintk("NFSD: expire client. dp %p, fp %p\n", dp, - dp->dl_flock); list_del_init(&dp->dl_perclnt); list_move(&dp->dl_recall_lru, &reaplist); } @@ -2931,8 +2929,6 @@ nfs4_laundromat(void) test_val = u; break; } - dprintk("NFSD: purging unused delegation dp %p, fp %p\n", - dp, dp->dl_flock); list_move(&dp->dl_recall_lru, &reaplist); } spin_unlock(&recall_lock); From 5d926e8c2f46dc09f4ddde86644a5f1d0726a470 Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Mon, 7 Feb 2011 16:53:46 -0500 Subject: [PATCH 245/277] nfsd4: modify fi_delegations under recall_lock Modify fi_delegations only under the recall_lock, allowing us to use that list on lease breaks. Also some trivial cleanup to simplify later changes. Signed-off-by: J. Bruce Fields --- fs/nfsd/nfs4state.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index d978192838a3..8b6cd3cf4835 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -277,9 +277,9 @@ nfs4_close_delegation(struct nfs4_delegation *dp) static void unhash_delegation(struct nfs4_delegation *dp) { - list_del_init(&dp->dl_perfile); list_del_init(&dp->dl_perclnt); spin_lock(&recall_lock); + list_del_init(&dp->dl_perfile); list_del_init(&dp->dl_recall_lru); spin_unlock(&recall_lock); nfs4_close_delegation(dp); @@ -2336,9 +2336,7 @@ static void nfsd_break_one_deleg(struct nfs4_delegation *dp) * it's safe to take a reference: */ atomic_inc(&dp->dl_count); - spin_lock(&recall_lock); list_add_tail(&dp->dl_recall_lru, &del_recall_lru); - spin_unlock(&recall_lock); /* only place dl_time is set. protected by lock_flocks*/ dp->dl_time = get_seconds(); @@ -2363,8 +2361,10 @@ static void nfsd_break_deleg_cb(struct file_lock *fl) */ fl->fl_break_time = 0; - nfsd_break_one_deleg(dp); + spin_lock(&recall_lock); dp->dl_file->fi_had_conflict = true; + nfsd_break_one_deleg(dp); + spin_unlock(&recall_lock); } static From acfdf5c383b38f7f4dddae41b97c97f1ae058f49 Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Mon, 31 Jan 2011 19:20:39 -0500 Subject: [PATCH 246/277] nfsd4: acquire only one lease per file Instead of acquiring one lease each time another client opens a file, nfsd can acquire just one lease to represent all of them, and reference count it to determine when to release it. This fixes a regression introduced by c45821d263a8a5109d69a9e8942b8d65bcd5f31a "locks: eliminate fl_mylease callback": after that patch, only the struct file * is used to determine who owns a given lease. But since we recently converted the server to share a single struct file per open, if we acquire multiple leases on the same file from nfsd, it then becomes impossible on unlocking a lease to determine which of those leases (all of whom share the same struct file *) we meant to remove. Thanks to Takashi Iwai for catching a bug in a previous version of this patch. Tested-by: Takashi Iwai Signed-off-by: J. Bruce Fields --- fs/nfsd/nfs4state.c | 95 ++++++++++++++++++++++++++------------------- fs/nfsd/state.h | 5 ++- 2 files changed, 58 insertions(+), 42 deletions(-) diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 8b6cd3cf4835..54b60bfceb8d 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -230,9 +230,6 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_stateid *stp, struct svc_f dp->dl_client = clp; get_nfs4_file(fp); dp->dl_file = fp; - dp->dl_vfs_file = find_readable_file(fp); - get_file(dp->dl_vfs_file); - dp->dl_flock = NULL; dp->dl_type = type; dp->dl_stateid.si_boot = boot_time; dp->dl_stateid.si_stateownerid = current_delegid++; @@ -241,8 +238,6 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_stateid *stp, struct svc_f fh_copy_shallow(&dp->dl_fh, ¤t_fh->fh_handle); dp->dl_time = 0; atomic_set(&dp->dl_count, 1); - list_add(&dp->dl_perfile, &fp->fi_delegations); - list_add(&dp->dl_perclnt, &clp->cl_delegations); INIT_WORK(&dp->dl_recall.cb_work, nfsd4_do_callback_rpc); return dp; } @@ -253,24 +248,18 @@ nfs4_put_delegation(struct nfs4_delegation *dp) if (atomic_dec_and_test(&dp->dl_count)) { dprintk("NFSD: freeing dp %p\n",dp); put_nfs4_file(dp->dl_file); - fput(dp->dl_vfs_file); kmem_cache_free(deleg_slab, dp); num_delegations--; } } -/* Remove the associated file_lock first, then remove the delegation. - * lease_modify() is called to remove the FS_LEASE file_lock from - * the i_flock list, eventually calling nfsd's lock_manager - * fl_release_callback. - */ -static void -nfs4_close_delegation(struct nfs4_delegation *dp) +static void nfs4_put_deleg_lease(struct nfs4_file *fp) { - dprintk("NFSD: close_delegation dp %p\n",dp); - /* XXX: do we even need this check?: */ - if (dp->dl_flock) - vfs_setlease(dp->dl_vfs_file, F_UNLCK, &dp->dl_flock); + if (atomic_dec_and_test(&fp->fi_delegees)) { + vfs_setlease(fp->fi_deleg_file, F_UNLCK, &fp->fi_lease); + fp->fi_lease = NULL; + fp->fi_deleg_file = NULL; + } } /* Called under the state lock. */ @@ -282,7 +271,7 @@ unhash_delegation(struct nfs4_delegation *dp) list_del_init(&dp->dl_perfile); list_del_init(&dp->dl_recall_lru); spin_unlock(&recall_lock); - nfs4_close_delegation(dp); + nfs4_put_deleg_lease(dp->dl_file); nfs4_put_delegation(dp); } @@ -2076,6 +2065,7 @@ alloc_init_file(struct inode *ino) fp->fi_inode = igrab(ino); fp->fi_id = current_fileid++; fp->fi_had_conflict = false; + fp->fi_lease = NULL; memset(fp->fi_fds, 0, sizeof(fp->fi_fds)); memset(fp->fi_access, 0, sizeof(fp->fi_access)); spin_lock(&recall_lock); @@ -2344,26 +2334,26 @@ static void nfsd_break_one_deleg(struct nfs4_delegation *dp) nfsd4_cb_recall(dp); } -/* - * Called from break_lease() with lock_flocks() held. - * Note: we assume break_lease will only call this *once* for any given - * lease. - */ +/* Called from break_lease() with lock_flocks() held. */ static void nfsd_break_deleg_cb(struct file_lock *fl) { - struct nfs4_delegation *dp = (struct nfs4_delegation *)fl->fl_owner; + struct nfs4_file *fp = (struct nfs4_file *)fl->fl_owner; + struct nfs4_delegation *dp; - BUG_ON(!dp); + BUG_ON(!fp); + /* We assume break_lease is only called once per lease: */ + BUG_ON(fp->fi_had_conflict); /* * We don't want the locks code to timeout the lease for us; - * we'll remove it ourself if the delegation isn't returned + * we'll remove it ourself if a delegation isn't returned * in time: */ fl->fl_break_time = 0; spin_lock(&recall_lock); - dp->dl_file->fi_had_conflict = true; - nfsd_break_one_deleg(dp); + fp->fi_had_conflict = true; + list_for_each_entry(dp, &fp->fi_delegations, dl_perfile) + nfsd_break_one_deleg(dp); spin_unlock(&recall_lock); } @@ -2455,13 +2445,15 @@ nfs4_check_delegmode(struct nfs4_delegation *dp, int flags) static struct nfs4_delegation * find_delegation_file(struct nfs4_file *fp, stateid_t *stid) { - struct nfs4_delegation *dp; + struct nfs4_delegation *dp = NULL; + spin_lock(&recall_lock); list_for_each_entry(dp, &fp->fi_delegations, dl_perfile) { if (dp->dl_stateid.si_stateownerid == stid->si_stateownerid) - return dp; + break; } - return NULL; + spin_unlock(&recall_lock); + return dp; } int share_access_to_flags(u32 share_access) @@ -2649,28 +2641,51 @@ static struct file_lock *nfs4_alloc_init_lease(struct nfs4_delegation *dp, int f fl->fl_flags = FL_LEASE; fl->fl_type = flag == NFS4_OPEN_DELEGATE_READ? F_RDLCK: F_WRLCK; fl->fl_end = OFFSET_MAX; - fl->fl_owner = (fl_owner_t)dp; - fl->fl_file = dp->dl_vfs_file; - BUG_ON(!fl->fl_file); + fl->fl_owner = (fl_owner_t)(dp->dl_file); fl->fl_pid = current->tgid; - dp->dl_flock = fl; return fl; } static int nfs4_setlease(struct nfs4_delegation *dp, int flag) { + struct nfs4_file *fp = dp->dl_file; struct file_lock *fl; int status; fl = nfs4_alloc_init_lease(dp, flag); if (!fl) return -ENOMEM; - status = vfs_setlease(dp->dl_vfs_file, fl->fl_type, &fl); + fl->fl_file = find_readable_file(fp); + list_add(&dp->dl_perclnt, &dp->dl_client->cl_delegations); + status = vfs_setlease(fl->fl_file, fl->fl_type, &fl); if (status) { - dp->dl_flock = NULL; + list_del_init(&dp->dl_perclnt); locks_free_lock(fl); return -ENOMEM; } + fp->fi_lease = fl; + fp->fi_deleg_file = fl->fl_file; + get_file(fp->fi_deleg_file); + atomic_set(&fp->fi_delegees, 1); + list_add(&dp->dl_perfile, &fp->fi_delegations); + return 0; +} + +static int nfs4_set_delegation(struct nfs4_delegation *dp, int flag) +{ + struct nfs4_file *fp = dp->dl_file; + + if (!fp->fi_lease) + return nfs4_setlease(dp, flag); + spin_lock(&recall_lock); + if (fp->fi_had_conflict) { + spin_unlock(&recall_lock); + return -EAGAIN; + } + atomic_inc(&fp->fi_delegees); + list_add(&dp->dl_perfile, &fp->fi_delegations); + spin_unlock(&recall_lock); + list_add(&dp->dl_perclnt, &dp->dl_client->cl_delegations); return 0; } @@ -2715,7 +2730,7 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_sta dp = alloc_init_deleg(sop->so_client, stp, fh, flag); if (dp == NULL) goto out_no_deleg; - status = nfs4_setlease(dp, flag); + status = nfs4_set_delegation(dp, flag); if (status) goto out_free; @@ -2731,7 +2746,7 @@ out: open->op_delegate_type = flag; return; out_free: - unhash_delegation(dp); + nfs4_put_delegation(dp); out_no_deleg: flag = NFS4_OPEN_DELEGATE_NONE; goto out; @@ -3139,7 +3154,7 @@ nfs4_preprocess_stateid_op(struct nfsd4_compound_state *cstate, goto out; renew_client(dp->dl_client); if (filpp) { - *filpp = find_readable_file(dp->dl_file); + *filpp = dp->dl_file->fi_deleg_file; BUG_ON(!*filpp); } } else { /* open or lock stateid */ diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h index 3074656ba7bf..2d31224b07bf 100644 --- a/fs/nfsd/state.h +++ b/fs/nfsd/state.h @@ -83,8 +83,6 @@ struct nfs4_delegation { atomic_t dl_count; /* ref count */ struct nfs4_client *dl_client; struct nfs4_file *dl_file; - struct file *dl_vfs_file; - struct file_lock *dl_flock; u32 dl_type; time_t dl_time; /* For recall: */ @@ -379,6 +377,9 @@ struct nfs4_file { */ atomic_t fi_readers; atomic_t fi_writers; + struct file *fi_deleg_file; + struct file_lock *fi_lease; + atomic_t fi_delegees; struct inode *fi_inode; u32 fi_id; /* used with stateowner->so_id * for stateid_hashtbl hash */ From 83f6b0c18204f68961f58b9f69e5dba0d36056a2 Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Sun, 6 Feb 2011 16:46:30 -0500 Subject: [PATCH 247/277] nfsd: break lease on unlink due to rename 4795bb37effb7b8fe77e2d2034545d062d3788a8 "nfsd: break lease on unlink, link, and rename", only broke the lease on the file that was being renamed, and didn't handle the case where the target path refers to an already-existing file that will be unlinked by a rename--in that case the target file should have any leases broken as well. Signed-off-by: J. Bruce Fields --- fs/nfsd/vfs.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 30c73f8a5791..da1d9701f8e4 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -1742,6 +1742,13 @@ nfsd_rename(struct svc_rqst *rqstp, struct svc_fh *ffhp, char *fname, int flen, goto out_dput_new; host_err = nfsd_break_lease(odentry->d_inode); + if (host_err) + goto out_drop_write; + if (ndentry->d_inode) { + host_err = nfsd_break_lease(ndentry->d_inode); + if (host_err) + goto out_drop_write; + } if (host_err) goto out_drop_write; host_err = vfs_rename(fdir, odentry, tdir, ndentry); From eb14ab8ed24a0405fd056068b28c33a1cd846024 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Thu, 10 Feb 2011 12:35:00 -0500 Subject: [PATCH 248/277] Btrfs: fix page->private races There is a race where btrfs_releasepage can drop the page->private contents just as alloc_extent_buffer is setting up pages for metadata. Because of how the Btrfs page flags work, this results in us skipping the crc on the page during IO. This patch sovles the race by waiting until after the extent buffer is inserted into the radix tree before it sets page private. Signed-off-by: Chris Mason --- fs/btrfs/disk-io.c | 8 ++++++-- fs/btrfs/extent_io.c | 38 +++++++++++++++++++++++++++++++++++--- 2 files changed, 41 insertions(+), 5 deletions(-) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index b36eeef19194..3e1ea3e0477e 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -359,10 +359,14 @@ static int csum_dirty_buffer(struct btrfs_root *root, struct page *page) tree = &BTRFS_I(page->mapping->host)->io_tree; - if (page->private == EXTENT_PAGE_PRIVATE) + if (page->private == EXTENT_PAGE_PRIVATE) { + WARN_ON(1); goto out; - if (!page->private) + } + if (!page->private) { + WARN_ON(1); goto out; + } len = page->private >> 2; WARN_ON(len == 0); diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 8862dda46ff6..0418bf2c9757 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -1946,6 +1946,7 @@ void set_page_extent_mapped(struct page *page) static void set_page_extent_head(struct page *page, unsigned long len) { + WARN_ON(!PagePrivate(page)); set_page_private(page, EXTENT_PAGE_PRIVATE_FIRST_PAGE | len << 2); } @@ -3195,7 +3196,13 @@ struct extent_buffer *alloc_extent_buffer(struct extent_io_tree *tree, } if (!PageUptodate(p)) uptodate = 0; - unlock_page(p); + + /* + * see below about how we avoid a nasty race with release page + * and why we unlock later + */ + if (i != 0) + unlock_page(p); } if (uptodate) set_bit(EXTENT_BUFFER_UPTODATE, &eb->bflags); @@ -3219,9 +3226,26 @@ struct extent_buffer *alloc_extent_buffer(struct extent_io_tree *tree, atomic_inc(&eb->refs); spin_unlock(&tree->buffer_lock); radix_tree_preload_end(); + + /* + * there is a race where release page may have + * tried to find this extent buffer in the radix + * but failed. It will tell the VM it is safe to + * reclaim the, and it will clear the page private bit. + * We must make sure to set the page private bit properly + * after the extent buffer is in the radix tree so + * it doesn't get lost + */ + set_page_extent_mapped(eb->first_page); + set_page_extent_head(eb->first_page, eb->len); + if (!page0) + unlock_page(eb->first_page); return eb; free_eb: + if (eb->first_page && !page0) + unlock_page(eb->first_page); + if (!atomic_dec_and_test(&eb->refs)) return exists; btrfs_release_extent_buffer(eb); @@ -3272,10 +3296,11 @@ int clear_extent_buffer_dirty(struct extent_io_tree *tree, continue; lock_page(page); + WARN_ON(!PagePrivate(page)); + + set_page_extent_mapped(page); if (i == 0) set_page_extent_head(page, eb->len); - else - set_page_private(page, EXTENT_PAGE_PRIVATE); clear_page_dirty_for_io(page); spin_lock_irq(&page->mapping->tree_lock); @@ -3465,6 +3490,13 @@ int read_extent_buffer_pages(struct extent_io_tree *tree, for (i = start_i; i < num_pages; i++) { page = extent_buffer_page(eb, i); + + WARN_ON(!PagePrivate(page)); + + set_page_extent_mapped(page); + if (i == 0) + set_page_extent_head(page, eb->len); + if (inc_all_pages) page_cache_get(page); if (!PageUptodate(page)) { From e3f24cc521cb7ba60ac137abd1939e4e03435e80 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Mon, 14 Feb 2011 12:52:08 -0500 Subject: [PATCH 249/277] Btrfs: don't release pages when we can't clear the uptodate bits Btrfs tracks uptodate state in an rbtree as well as in the page bits. This is supposed to enable us to use block sizes other than the page size, but there are a few parts still missing before that completely works. But, our readpage routine trusts this additional range based tracking of uptodateness, much in the same way the buffer head up to date bits are trusted for the other filesystems. The problem is that sometimes we need to allocate memory in order to split records in the rbtree, even when we are just clearing bits. This can be difficult when our clearing function is called GFP_ATOMIC, which can happen in the releasepage path. So, what happens today looks like this: releasepage called with GFP_ATOMIC btrfs_releasepage calls clear_extent_bit clear_extent_bit fails to allocate ram, leaving the up to date bit set btrfs_releasepage returns success The end result is the page being gone, but btrfs thinking the range is up to date. Later on if someone tries to read that same page, the btrfs readpage code will return immediately thinking the page is already up to date. This commit fixes things to fail the releasepage when we can't clear the extent state bits. It covers both data pages and metadata tree blocks. Signed-off-by: Chris Mason --- fs/btrfs/extent_io.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 0418bf2c9757..e7aeba242701 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -2822,9 +2822,17 @@ int try_release_extent_state(struct extent_map_tree *map, * at this point we can safely clear everything except the * locked bit and the nodatasum bit */ - clear_extent_bit(tree, start, end, + ret = clear_extent_bit(tree, start, end, ~(EXTENT_LOCKED | EXTENT_NODATASUM), 0, 0, NULL, mask); + + /* if clear_extent_bit failed for enomem reasons, + * we can't allow the release to continue. + */ + if (ret < 0) + ret = 0; + else + ret = 1; } return ret; } From 6848ad6461e551849ba3c32d945d4f45e96453a6 Mon Sep 17 00:00:00 2001 From: "Yan, Zheng" Date: Mon, 14 Feb 2011 16:00:03 -0500 Subject: [PATCH 250/277] Btrfs: Fix balance panic Mark the cloned backref_node as checked in clone_backref_node() Signed-off-by: Yan, Zheng Signed-off-by: Chris Mason --- fs/btrfs/relocation.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index 1f5556acb530..0825e4ed9447 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -1157,6 +1157,7 @@ static int clone_backref_node(struct btrfs_trans_handle *trans, new_node->bytenr = dest->node->start; new_node->level = node->level; new_node->lowest = node->lowest; + new_node->checked = 1; new_node->root = dest; if (!node->lowest) { From 51788b1bdd0d68345bab0af4301e7fa429277228 Mon Sep 17 00:00:00 2001 From: Dan Rosenberg Date: Mon, 14 Feb 2011 16:04:23 -0500 Subject: [PATCH 251/277] btrfs: prevent heap corruption in btrfs_ioctl_space_info() Commit bf5fc093c5b625e4259203f1cee7ca73488a5620 refactored btrfs_ioctl_space_info() and introduced several security issues. space_args.space_slots is an unsigned 64-bit type controlled by a possibly unprivileged caller. The comparison as a signed int type allows providing values that are treated as negative and cause the subsequent allocation size calculation to wrap, or be truncated to 0. By providing a size that's truncated to 0, kmalloc() will return ZERO_SIZE_PTR. It's also possible to provide a value smaller than the slot count. The subsequent loop ignores the allocation size when copying data in, resulting in a heap overflow or write to ZERO_SIZE_PTR. The fix changes the slot count type and comparison typecast to u64, which prevents truncation or signedness errors, and also ensures that we don't copy more data than we've allocated in the subsequent loop. Note that zero-size allocations are no longer possible since there is already an explicit check for space_args.space_slots being 0 and truncation of this value is no longer an issue. Signed-off-by: Dan Rosenberg Signed-off-by: Josef Bacik Reviewed-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/ioctl.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 02d224e8c83f..be2d4f6aaa5e 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -2208,7 +2208,7 @@ long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg) int num_types = 4; int alloc_size; int ret = 0; - int slot_count = 0; + u64 slot_count = 0; int i, c; if (copy_from_user(&space_args, @@ -2247,7 +2247,7 @@ long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg) goto out; } - slot_count = min_t(int, space_args.space_slots, slot_count); + slot_count = min_t(u64, space_args.space_slots, slot_count); alloc_size = sizeof(*dest) * slot_count; @@ -2267,6 +2267,9 @@ long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg) for (i = 0; i < num_types; i++) { struct btrfs_space_info *tmp; + if (!slot_count) + break; + info = NULL; rcu_read_lock(); list_for_each_entry_rcu(tmp, &root->fs_info->space_info, @@ -2288,7 +2291,10 @@ long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg) memcpy(dest, &space, sizeof(space)); dest++; space_args.total_spaces++; + slot_count--; } + if (!slot_count) + break; } up_read(&info->groups_sem); } From 67100f255dba284bcbb5ce795355dad1cff35658 Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Sun, 6 Feb 2011 19:58:21 +0000 Subject: [PATCH 252/277] Btrfs - Fix memory leak in btrfs_init_new_device() Memory allocated by calling kstrdup() should be freed. Signed-off-by: Ilya Dryomov Signed-off-by: Chris Mason --- fs/btrfs/volumes.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 7cad59353b09..dadaaa8005c8 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -1603,12 +1603,14 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path) ret = find_next_devid(root, &device->devid); if (ret) { + kfree(device->name); kfree(device); goto error; } trans = btrfs_start_transaction(root, 0); if (IS_ERR(trans)) { + kfree(device->name); kfree(device); ret = PTR_ERR(trans); goto error; From c26a920373a983b52223eed5a13b97404d8b4158 Mon Sep 17 00:00:00 2001 From: Tsutomu Itoh Date: Mon, 14 Feb 2011 00:45:29 +0000 Subject: [PATCH 253/277] Btrfs: check return value of alloc_extent_map() I add the check on the return value of alloc_extent_map() to several places. In addition, alloc_extent_map() returns only the address or NULL. Therefore, check by IS_ERR() is unnecessary. So, I remove IS_ERR() checking. Signed-off-by: Tsutomu Itoh Signed-off-by: Chris Mason --- fs/btrfs/extent-tree.c | 2 +- fs/btrfs/extent_map.c | 4 ++-- fs/btrfs/file.c | 1 + fs/btrfs/inode.c | 3 +++ 4 files changed, 7 insertions(+), 3 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 565e22d77b1b..a7aaa10c5302 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -6584,7 +6584,7 @@ static noinline int relocate_data_extent(struct inode *reloc_inode, u64 end = start + extent_key->offset - 1; em = alloc_extent_map(GFP_NOFS); - BUG_ON(!em || IS_ERR(em)); + BUG_ON(!em); em->start = start; em->len = extent_key->offset; diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c index b0e1fce12530..2b6c12e983b3 100644 --- a/fs/btrfs/extent_map.c +++ b/fs/btrfs/extent_map.c @@ -51,8 +51,8 @@ struct extent_map *alloc_extent_map(gfp_t mask) { struct extent_map *em; em = kmem_cache_alloc(extent_map_cache, mask); - if (!em || IS_ERR(em)) - return em; + if (!em) + return NULL; em->in_tree = 0; em->flags = 0; em->compress_type = BTRFS_COMPRESS_NONE; diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index b0ff34b96607..65338a1d14ad 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -185,6 +185,7 @@ int btrfs_drop_extent_cache(struct inode *inode, u64 start, u64 end, split = alloc_extent_map(GFP_NOFS); if (!split2) split2 = alloc_extent_map(GFP_NOFS); + BUG_ON(!split || !split2); write_lock(&em_tree->lock); em = lookup_extent_mapping(em_tree, start, len); diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index c9bc0afdbfc6..8d392ed73d57 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -644,6 +644,7 @@ retry: async_extent->ram_size - 1, 0); em = alloc_extent_map(GFP_NOFS); + BUG_ON(!em); em->start = async_extent->start; em->len = async_extent->ram_size; em->orig_start = em->start; @@ -820,6 +821,7 @@ static noinline int cow_file_range(struct inode *inode, BUG_ON(ret); em = alloc_extent_map(GFP_NOFS); + BUG_ON(!em); em->start = start; em->orig_start = em->start; ram_size = ins.offset; @@ -1169,6 +1171,7 @@ out_check: struct extent_map_tree *em_tree; em_tree = &BTRFS_I(inode)->extent_tree; em = alloc_extent_map(GFP_NOFS); + BUG_ON(!em); em->start = cur_offset; em->orig_start = em->start; em->len = num_bytes; From 265aa6c8d8822c9074a2174e8c9f31a37fa02e50 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 14 Feb 2011 16:16:22 -0500 Subject: [PATCH 254/277] drm/radeon/kms: fix a few more atombios endian issues Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/atombios_crtc.c | 2 +- drivers/gpu/drm/radeon/rs690.c | 12 ++++++------ 2 files changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index 1bf61220a450..0b10b0e14945 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -728,7 +728,7 @@ static void atombios_crtc_set_dcpll(struct drm_crtc *crtc, /* if the default dcpll clock is specified, * SetPixelClock provides the dividers */ - args.v6.ulDispEngClkFreq = dispclk; + args.v6.ulDispEngClkFreq = cpu_to_le32(dispclk); args.v6.ucPpll = ATOM_DCPLL; break; default: diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c index 0137d3e3728d..6638c8e4c81b 100644 --- a/drivers/gpu/drm/radeon/rs690.c +++ b/drivers/gpu/drm/radeon/rs690.c @@ -77,9 +77,9 @@ void rs690_pm_info(struct radeon_device *rdev) switch (crev) { case 1: tmp.full = dfixed_const(100); - rdev->pm.igp_sideport_mclk.full = dfixed_const(info->info.ulBootUpMemoryClock); + rdev->pm.igp_sideport_mclk.full = dfixed_const(le32_to_cpu(info->info.ulBootUpMemoryClock)); rdev->pm.igp_sideport_mclk.full = dfixed_div(rdev->pm.igp_sideport_mclk, tmp); - if (info->info.usK8MemoryClock) + if (le16_to_cpu(info->info.usK8MemoryClock)) rdev->pm.igp_system_mclk.full = dfixed_const(le16_to_cpu(info->info.usK8MemoryClock)); else if (rdev->clock.default_mclk) { rdev->pm.igp_system_mclk.full = dfixed_const(rdev->clock.default_mclk); @@ -91,16 +91,16 @@ void rs690_pm_info(struct radeon_device *rdev) break; case 2: tmp.full = dfixed_const(100); - rdev->pm.igp_sideport_mclk.full = dfixed_const(info->info_v2.ulBootUpSidePortClock); + rdev->pm.igp_sideport_mclk.full = dfixed_const(le32_to_cpu(info->info_v2.ulBootUpSidePortClock)); rdev->pm.igp_sideport_mclk.full = dfixed_div(rdev->pm.igp_sideport_mclk, tmp); - if (info->info_v2.ulBootUpUMAClock) - rdev->pm.igp_system_mclk.full = dfixed_const(info->info_v2.ulBootUpUMAClock); + if (le32_to_cpu(info->info_v2.ulBootUpUMAClock)) + rdev->pm.igp_system_mclk.full = dfixed_const(le32_to_cpu(info->info_v2.ulBootUpUMAClock)); else if (rdev->clock.default_mclk) rdev->pm.igp_system_mclk.full = dfixed_const(rdev->clock.default_mclk); else rdev->pm.igp_system_mclk.full = dfixed_const(66700); rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp); - rdev->pm.igp_ht_link_clk.full = dfixed_const(info->info_v2.ulHTLinkFreq); + rdev->pm.igp_ht_link_clk.full = dfixed_const(le32_to_cpu(info->info_v2.ulHTLinkFreq)); rdev->pm.igp_ht_link_clk.full = dfixed_div(rdev->pm.igp_ht_link_clk, tmp); rdev->pm.igp_ht_link_width.full = dfixed_const(le16_to_cpu(info->info_v2.usMinHTLinkWidth)); break; From bd91572e77013aad242e2d2d565bd730c043f8b8 Mon Sep 17 00:00:00 2001 From: Xiao Jiang Date: Mon, 14 Feb 2011 17:58:23 +0800 Subject: [PATCH 255/277] drm: fix wrong usages of drm_device in DRM Developer's Guide A few wrong usages of drm_device, which should be drm_driver. Signed-off-by: Xiao Jiang Signed-off-by: Dave Airlie --- Documentation/DocBook/drm.tmpl | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/Documentation/DocBook/drm.tmpl b/Documentation/DocBook/drm.tmpl index 2861055afd7a..c27915893974 100644 --- a/Documentation/DocBook/drm.tmpl +++ b/Documentation/DocBook/drm.tmpl @@ -73,8 +73,8 @@ services. - The core of every DRM driver is struct drm_device. Drivers - will typically statically initialize a drm_device structure, + The core of every DRM driver is struct drm_driver. Drivers + will typically statically initialize a drm_driver structure, then pass it to drm_init() at load time. @@ -84,7 +84,7 @@ Driver initialization Before calling the DRM initialization routines, the driver must - first create and fill out a struct drm_device structure. + first create and fill out a struct drm_driver structure. static struct drm_driver driver = { From a4b40d5d97f5c9ad0b7f4bf2818291ca184bb433 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 14 Feb 2011 11:43:10 -0500 Subject: [PATCH 256/277] drm/radeon/kms: add bounds checking to avivo pll algo Prevent divider overflow. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=28932 Signed-off-by: Alex Deucher Cc: stable@kernel.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_display.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 2eff98cfd728..0e657095de7c 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -793,6 +793,11 @@ static void avivo_get_fb_div(struct radeon_pll *pll, tmp *= target_clock; *fb_div = tmp / pll->reference_freq; *frac_fb_div = tmp % pll->reference_freq; + + if (*fb_div > pll->max_feedback_div) + *fb_div = pll->max_feedback_div; + else if (*fb_div < pll->min_feedback_div) + *fb_div = pll->min_feedback_div; } static u32 avivo_get_post_div(struct radeon_pll *pll, @@ -826,6 +831,11 @@ static u32 avivo_get_post_div(struct radeon_pll *pll, post_div--; } + if (post_div > pll->max_post_div) + post_div = pll->max_post_div; + else if (post_div < pll->min_post_div) + post_div = pll->min_post_div; + return post_div; } From 5b40ddf888398ce4cccbf3b9d0a18d90149ed7ff Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 14 Feb 2011 11:43:11 -0500 Subject: [PATCH 257/277] drm/radeon/kms: hopefully fix pll issues for real (v3) The problematic boards have a recommended reference divider to be used when spread spectrum is enabled on the laptop panel. Enable the use of the recommended reference divider along with the new pll algo. v2: testing options v3: When using the fixed reference divider with LVDS, prefer min m to max p and use fractional feedback dividers. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=28852 https://bugzilla.kernel.org/show_bug.cgi?id=24462 https://bugzilla.kernel.org/show_bug.cgi?id=26552 MacbookPro issues reported by Justin Mattock Signed-off-by: Alex Deucher Cc: stable@kernel.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/atombios_crtc.c | 22 ++++++++-------------- 1 file changed, 8 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index 0b10b0e14945..095bc507fb16 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -538,7 +538,6 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc, pll->flags |= RADEON_PLL_PREFER_HIGH_FB_DIV; else pll->flags |= RADEON_PLL_PREFER_LOW_REF_DIV; - } list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { @@ -555,29 +554,28 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc, dp_clock = dig_connector->dp_clock; } } -/* this might work properly with the new pll algo */ -#if 0 /* doesn't work properly on some laptops */ + /* use recommended ref_div for ss */ if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) { + pll->flags |= RADEON_PLL_PREFER_MINM_OVER_MAXP; if (ss_enabled) { if (ss->refdiv) { pll->flags |= RADEON_PLL_USE_REF_DIV; pll->reference_div = ss->refdiv; + if (ASIC_IS_AVIVO(rdev)) + pll->flags |= RADEON_PLL_USE_FRAC_FB_DIV; } } } -#endif + if (ASIC_IS_AVIVO(rdev)) { /* DVO wants 2x pixel clock if the DVO chip is in 12 bit mode */ if (radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1) adjusted_clock = mode->clock * 2; if (radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT)) pll->flags |= RADEON_PLL_PREFER_CLOSEST_LOWER; - /* rv515 needs more testing with this option */ - if (rdev->family != CHIP_RV515) { - if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) - pll->flags |= RADEON_PLL_IS_LCD; - } + if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) + pll->flags |= RADEON_PLL_IS_LCD; } else { if (encoder->encoder_type != DRM_MODE_ENCODER_DAC) pll->flags |= RADEON_PLL_NO_ODD_POST_DIV; @@ -957,11 +955,7 @@ static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode /* adjust pixel clock as needed */ adjusted_clock = atombios_adjust_pll(crtc, mode, pll, ss_enabled, &ss); - /* rv515 seems happier with the old algo */ - if (rdev->family == CHIP_RV515) - radeon_compute_pll_legacy(pll, adjusted_clock, &pll_clock, &fb_div, &frac_fb_div, - &ref_div, &post_div); - else if (ASIC_IS_AVIVO(rdev)) + if (ASIC_IS_AVIVO(rdev)) radeon_compute_pll_avivo(pll, adjusted_clock, &pll_clock, &fb_div, &frac_fb_div, &ref_div, &post_div); else From 678301ecadec24ff77ab310eebf8a32ccddb1850 Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Mon, 14 Feb 2011 22:52:38 +0100 Subject: [PATCH 258/277] x86, ioapic: Don't warn about non-existing IOAPICs if we have none mp_find_ioapic() prints errors like: ERROR: Unable to locate IOAPIC for GSI 13 if it can't find the IOAPIC that manages that specific GSI. I see errors like that at every boot of a laptop that apparently doesn't have any IOAPICs. But if there are no IOAPICs it doesn't seem to be an error that none can be found. A solution that gets rid of this message is to directly return if nr_ioapics (still) is zero. (But keep returning -1 in that case, so nothing breaks from this change.) The call chain that generates this error is: pnpacpi_allocated_resource() case ACPI_RESOURCE_TYPE_IRQ: pnpacpi_parse_allocated_irqresource() acpi_get_override_irq() mp_find_ioapic() Signed-off-by: Paul Bolle Signed-off-by: Ingo Molnar --- arch/x86/kernel/apic/io_apic.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index 697dc34b7b87..ca9e2a3545a9 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -4002,6 +4002,9 @@ int mp_find_ioapic(u32 gsi) { int i = 0; + if (nr_ioapics == 0) + return -1; + /* Find the IOAPIC that manages this GSI. */ for (i = 0; i < nr_ioapics; i++) { if ((gsi >= mp_gsi_routing[i].gsi_base) From 84e383b322e5348db03be54ff64cc6da87003717 Mon Sep 17 00:00:00 2001 From: Naga Chumbalkar Date: Mon, 14 Feb 2011 22:47:17 +0000 Subject: [PATCH 259/277] x86, dmi, debug: Log board name (when present) in dmesg/oops output The "Type 2" SMBIOS record that contains Board Name is not strictly required and may be absent in the SMBIOS on some platforms. ( Please note that Type 2 is not listed in Table 3 in Sec 6.2 ("Required Structures and Data") of the SMBIOS v2.7 Specification. ) Use the Manufacturer Name (aka System Vendor) name. Print Board Name only when it is present. Before the fix: (i) dmesg output: DMI: /ProLiant DL380 G6, BIOS P62 01/29/2011 (ii) oops output: Pid: 2170, comm: bash Not tainted 2.6.38-rc4+ #3 /ProLiant DL380 G6 After the fix: (i) dmesg output: DMI: HP ProLiant DL380 G6, BIOS P62 01/29/2011 (ii) oops output: Pid: 2278, comm: bash Not tainted 2.6.38-rc4+ #4 HP ProLiant DL380 G6 Signed-off-by: Naga Chumbalkar Reviewed-by: Bjorn Helgaas Cc: # .3x - good for debugging, please apply as far back as it applies cleanly LKML-Reference: <20110214224423.2182.13929.sendpatchset@nchumbalkar.americas.hpqcorp.net> Signed-off-by: Ingo Molnar --- arch/x86/kernel/process.c | 22 ++++++++++++++++------ drivers/firmware/dmi_scan.c | 11 +++++++++-- 2 files changed, 25 insertions(+), 8 deletions(-) diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 3c189e9accd3..ff4554198981 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -92,21 +92,31 @@ void show_regs(struct pt_regs *regs) void show_regs_common(void) { - const char *board, *product; + const char *vendor, *product, *board; - board = dmi_get_system_info(DMI_BOARD_NAME); - if (!board) - board = ""; + vendor = dmi_get_system_info(DMI_SYS_VENDOR); + if (!vendor) + vendor = ""; product = dmi_get_system_info(DMI_PRODUCT_NAME); if (!product) product = ""; + /* Board Name is optional */ + board = dmi_get_system_info(DMI_BOARD_NAME); + printk(KERN_CONT "\n"); - printk(KERN_DEFAULT "Pid: %d, comm: %.20s %s %s %.*s %s/%s\n", + printk(KERN_DEFAULT "Pid: %d, comm: %.20s %s %s %.*s", current->pid, current->comm, print_tainted(), init_utsname()->release, (int)strcspn(init_utsname()->version, " "), - init_utsname()->version, board, product); + init_utsname()->version); + printk(KERN_CONT " "); + printk(KERN_CONT "%s %s", vendor, product); + if (board) { + printk(KERN_CONT "/"); + printk(KERN_CONT "%s", board); + } + printk(KERN_CONT "\n"); } void flush_thread(void) diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c index e28e41668177..bcb1126e3d00 100644 --- a/drivers/firmware/dmi_scan.c +++ b/drivers/firmware/dmi_scan.c @@ -378,10 +378,17 @@ static void __init print_filtered(const char *info) static void __init dmi_dump_ids(void) { + const char *board; /* Board Name is optional */ + printk(KERN_DEBUG "DMI: "); - print_filtered(dmi_get_system_info(DMI_BOARD_NAME)); - printk(KERN_CONT "/"); + print_filtered(dmi_get_system_info(DMI_SYS_VENDOR)); + printk(KERN_CONT " "); print_filtered(dmi_get_system_info(DMI_PRODUCT_NAME)); + board = dmi_get_system_info(DMI_BOARD_NAME); + if (board) { + printk(KERN_CONT "/"); + print_filtered(board); + } printk(KERN_CONT ", BIOS "); print_filtered(dmi_get_system_info(DMI_BIOS_VERSION)); printk(KERN_CONT " "); From 844a391799c25d9ba85cbce33e4697db06083ec6 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 15 Feb 2011 00:38:26 -0500 Subject: [PATCH 260/277] nothing in do_follow_link() is going to see RCU Signed-off-by: Al Viro --- fs/namei.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index ec4b2d0190a8..9ce6d272f4f2 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -668,9 +668,6 @@ force_reval_path(struct path *path, struct nameidata *nd) return 0; if (!status) { - /* Don't d_invalidate in rcu-walk mode */ - if (nameidata_drop_rcu(nd)) - return -ECHILD; d_invalidate(dentry); status = -ESTALE; } @@ -777,6 +774,8 @@ __do_follow_link(const struct path *link, struct nameidata *nd, void **p) int error; struct dentry *dentry = link->dentry; + BUG_ON(nd->flags & LOOKUP_RCU); + touch_atime(link->mnt, dentry); nd_set_link(nd, NULL); @@ -811,6 +810,11 @@ static inline int do_follow_link(struct path *path, struct nameidata *nd) { void *cookie; int err = -ELOOP; + + /* We drop rcu-walk here */ + if (nameidata_dentry_drop_rcu_maybe(nd, path->dentry)) + return -ECHILD; + if (current->link_count >= MAX_NESTED_LINKS) goto loop; if (current->total_link_count >= 40) @@ -1419,9 +1423,6 @@ exec_again: goto out_dput; if (inode->i_op->follow_link) { - /* We commonly drop rcu-walk here */ - if (nameidata_dentry_drop_rcu_maybe(nd, next.dentry)) - return -ECHILD; BUG_ON(inode != next.dentry->d_inode); err = do_follow_link(&next, nd); if (err) @@ -1467,8 +1468,6 @@ last_component: break; if (inode && unlikely(inode->i_op->follow_link) && (lookup_flags & LOOKUP_FOLLOW)) { - if (nameidata_dentry_drop_rcu_maybe(nd, next.dentry)) - return -ECHILD; BUG_ON(inode != next.dentry->d_inode); err = do_follow_link(&next, nd); if (err) From 24643087e748bf192f1182766716e522dc1c972f Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 15 Feb 2011 01:26:22 -0500 Subject: [PATCH 261/277] in do_lookup() split RCU and non-RCU cases of need_revalidate and use unlikely() instead of gotos, for fsck sake... Signed-off-by: Al Viro --- fs/namei.c | 31 ++++++++++++++++--------------- 1 file changed, 16 insertions(+), 15 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 9ce6d272f4f2..7609bacc7046 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -1259,9 +1259,15 @@ static int do_lookup(struct nameidata *nd, struct qstr *name, return -ECHILD; nd->seq = seq; - if (dentry->d_flags & DCACHE_OP_REVALIDATE) - goto need_revalidate; -done2: + if (unlikely(dentry->d_flags & DCACHE_OP_REVALIDATE)) { + dentry = do_revalidate(dentry, nd); + if (!dentry) + goto need_lookup; + if (IS_ERR(dentry)) + goto fail; + if (!(nd->flags & LOOKUP_RCU)) + goto done; + } path->mnt = mnt; path->dentry = dentry; if (likely(__follow_mount_rcu(nd, path, inode, false))) @@ -1274,8 +1280,13 @@ done2: if (!dentry) goto need_lookup; found: - if (dentry->d_flags & DCACHE_OP_REVALIDATE) - goto need_revalidate; + if (unlikely(dentry->d_flags & DCACHE_OP_REVALIDATE)) { + dentry = do_revalidate(dentry, nd); + if (!dentry) + goto need_lookup; + if (IS_ERR(dentry)) + goto fail; + } done: path->mnt = mnt; path->dentry = dentry; @@ -1317,16 +1328,6 @@ need_lookup: mutex_unlock(&dir->i_mutex); goto found; -need_revalidate: - dentry = do_revalidate(dentry, nd); - if (!dentry) - goto need_lookup; - if (IS_ERR(dentry)) - goto fail; - if (nd->flags & LOOKUP_RCU) - goto done2; - goto done; - fail: return PTR_ERR(dentry); } From f5e1c1c1afc1d979e2ac6a24cc99ba7143639f4d Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 15 Feb 2011 01:32:55 -0500 Subject: [PATCH 262/277] split do_revalidate() into RCU and non-RCU cases fixing oopsen in lookup_one_len() Signed-off-by: Al Viro --- fs/namei.c | 47 ++++++++++++++++++++++++++++++----------------- 1 file changed, 30 insertions(+), 17 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 7609bacc7046..a98f7f141780 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -592,12 +592,10 @@ static int d_revalidate(struct dentry *dentry, struct nameidata *nd) return status; } -static inline struct dentry * +static struct dentry * do_revalidate(struct dentry *dentry, struct nameidata *nd) { - int status; - - status = d_revalidate(dentry, nd); + int status = d_revalidate(dentry, nd); if (unlikely(status <= 0)) { /* * The dentry failed validation. @@ -606,24 +604,39 @@ do_revalidate(struct dentry *dentry, struct nameidata *nd) * to return a fail status. */ if (status < 0) { - /* If we're in rcu-walk, we don't have a ref */ - if (!(nd->flags & LOOKUP_RCU)) - dput(dentry); + dput(dentry); dentry = ERR_PTR(status); - - } else { - /* Don't d_invalidate in rcu-walk mode */ - if (nameidata_dentry_drop_rcu_maybe(nd, dentry)) - return ERR_PTR(-ECHILD); - if (!d_invalidate(dentry)) { - dput(dentry); - dentry = NULL; - } + } else if (!d_invalidate(dentry)) { + dput(dentry); + dentry = NULL; } } return dentry; } +static inline struct dentry * +do_revalidate_rcu(struct dentry *dentry, struct nameidata *nd) +{ + int status = dentry->d_op->d_revalidate(dentry, nd); + if (likely(status > 0)) + return dentry; + if (status == -ECHILD) { + if (nameidata_dentry_drop_rcu(nd, dentry)) + return ERR_PTR(-ECHILD); + return do_revalidate(dentry, nd); + } + if (status < 0) + return ERR_PTR(status); + /* Don't d_invalidate in rcu-walk mode */ + if (nameidata_dentry_drop_rcu(nd, dentry)) + return ERR_PTR(-ECHILD); + if (!d_invalidate(dentry)) { + dput(dentry); + dentry = NULL; + } + return dentry; +} + static inline int need_reval_dot(struct dentry *dentry) { if (likely(!(dentry->d_flags & DCACHE_OP_REVALIDATE))) @@ -1260,7 +1273,7 @@ static int do_lookup(struct nameidata *nd, struct qstr *name, nd->seq = seq; if (unlikely(dentry->d_flags & DCACHE_OP_REVALIDATE)) { - dentry = do_revalidate(dentry, nd); + dentry = do_revalidate_rcu(dentry, nd); if (!dentry) goto need_lookup; if (IS_ERR(dentry)) From f60aef7ec625236a6366722bb1be7b37596bf0ae Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 15 Feb 2011 01:35:28 -0500 Subject: [PATCH 263/277] drop out of RCU in return_reval ... thus killing the need to handle drop-from-RCU in d_revalidate() Signed-off-by: Al Viro --- fs/namei.c | 25 ++++++------------------- 1 file changed, 6 insertions(+), 19 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index a98f7f141780..10635d329175 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -571,25 +571,9 @@ void release_open_intent(struct nameidata *nd) } } -/* - * Call d_revalidate and handle filesystems that request rcu-walk - * to be dropped. This may be called and return in rcu-walk mode, - * regardless of success or error. If -ECHILD is returned, the caller - * must return -ECHILD back up the path walk stack so path walk may - * be restarted in ref-walk mode. - */ -static int d_revalidate(struct dentry *dentry, struct nameidata *nd) +static inline int d_revalidate(struct dentry *dentry, struct nameidata *nd) { - int status; - - status = dentry->d_op->d_revalidate(dentry, nd); - if (status == -ECHILD) { - if (nameidata_dentry_drop_rcu(nd, dentry)) - return status; - status = dentry->d_op->d_revalidate(dentry, nd); - } - - return status; + return dentry->d_op->d_revalidate(dentry, nd); } static struct dentry * @@ -617,7 +601,7 @@ do_revalidate(struct dentry *dentry, struct nameidata *nd) static inline struct dentry * do_revalidate_rcu(struct dentry *dentry, struct nameidata *nd) { - int status = dentry->d_op->d_revalidate(dentry, nd); + int status = d_revalidate(dentry, nd); if (likely(status > 0)) return dentry; if (status == -ECHILD) { @@ -1517,12 +1501,15 @@ return_reval: * We may need to check the cached dentry for staleness. */ if (need_reval_dot(nd->path.dentry)) { + if (nameidata_drop_rcu_last_maybe(nd)) + return -ECHILD; /* Note: we do not d_invalidate() */ err = d_revalidate(nd->path.dentry, nd); if (!err) err = -ESTALE; if (err < 0) break; + return 0; } return_base: if (nameidata_drop_rcu_last_maybe(nd)) From 4e924a4f53a0e1ea060bd50695a12a238b250322 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 15 Feb 2011 01:42:59 -0500 Subject: [PATCH 264/277] get rid of nameidata_dentry_drop_rcu() calling nameidata_drop_rcu() can't happen anymore and didn't work right anyway Signed-off-by: Al Viro --- fs/namei.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 10635d329175..9e701e28a329 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -455,14 +455,6 @@ static int nameidata_dentry_drop_rcu(struct nameidata *nd, struct dentry *dentry struct fs_struct *fs = current->fs; struct dentry *parent = nd->path.dentry; - /* - * It can be possible to revalidate the dentry that we started - * the path walk with. force_reval_path may also revalidate the - * dentry already committed to the nameidata. - */ - if (unlikely(parent == dentry)) - return nameidata_drop_rcu(nd); - BUG_ON(!(nd->flags & LOOKUP_RCU)); if (nd->root.mnt) { spin_lock(&fs->lock); From a628e7b87e100befac9702aa0c3b9848a7685e49 Mon Sep 17 00:00:00 2001 From: Chris Wright Date: Mon, 14 Feb 2011 17:21:49 -0800 Subject: [PATCH 265/277] pci: use security_capable() when checking capablities during config space read This reintroduces commit 47970b1b which was subsequently reverted as f00eaeea. The original change was broken and caused X startup failures and generally made privileged processes incapable of reading device dependent config space. The normal capable() interface returns true on success, but the LSM interface returns 0 on success. This thinko is now fixed in this patch, and has been confirmed to work properly. So, once again...Eric Paris noted that commit de139a3 ("pci: check caps from sysfs file open to read device dependent config space") caused the capability check to bypass security modules and potentially auditing. Rectify this by calling security_capable() when checking the open file's capabilities for config space reads. Reported-by: Eric Paris Tested-by: Dave Young Acked-by: James Morris Cc: Dave Airlie Cc: Alex Riesen Cc: Sedat Dilek Cc: Linus Torvalds Signed-off-by: Chris Wright Signed-off-by: James Morris --- drivers/pci/pci-sysfs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 8ecaac983923..ea25e5bfcf23 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include #include "pci.h" @@ -368,7 +369,7 @@ pci_read_config(struct file *filp, struct kobject *kobj, u8 *data = (u8*) buf; /* Several chips lock up trying to read undefined config space */ - if (cap_raised(filp->f_cred->cap_effective, CAP_SYS_ADMIN)) { + if (security_capable(filp->f_cred, CAP_SYS_ADMIN) == 0) { size = dev->cfg_size; } else if (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS) { size = 128; From 261cd298a8c363d7985e3482946edb4bfedacf98 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Tue, 15 Feb 2011 09:43:32 +0100 Subject: [PATCH 266/277] s390: remove task_show_regs task_show_regs used to be a debugging aid in the early bringup days of Linux on s390. /proc//status is a world readable file, it is not a good idea to show the registers of a process. The only correct fix is to remove task_show_regs. Reported-by: Al Viro Signed-off-by: Martin Schwidefsky Signed-off-by: Linus Torvalds --- arch/s390/include/asm/processor.h | 5 ----- arch/s390/kernel/traps.c | 37 ------------------------------- fs/proc/array.c | 3 --- 3 files changed, 45 deletions(-) diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index bf3de04170a7..2c79b6416271 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -148,11 +148,6 @@ extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); */ extern unsigned long thread_saved_pc(struct task_struct *t); -/* - * Print register of task into buffer. Used in fs/proc/array.c. - */ -extern void task_show_regs(struct seq_file *m, struct task_struct *task); - extern void show_code(struct pt_regs *regs); unsigned long get_wchan(struct task_struct *p); diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c index 5eb78dd584ce..b5a4a739b477 100644 --- a/arch/s390/kernel/traps.c +++ b/arch/s390/kernel/traps.c @@ -237,43 +237,6 @@ void show_regs(struct pt_regs *regs) show_last_breaking_event(regs); } -/* This is called from fs/proc/array.c */ -void task_show_regs(struct seq_file *m, struct task_struct *task) -{ - struct pt_regs *regs; - - regs = task_pt_regs(task); - seq_printf(m, "task: %p, ksp: %p\n", - task, (void *)task->thread.ksp); - seq_printf(m, "User PSW : %p %p\n", - (void *) regs->psw.mask, (void *)regs->psw.addr); - - seq_printf(m, "User GPRS: " FOURLONG, - regs->gprs[0], regs->gprs[1], - regs->gprs[2], regs->gprs[3]); - seq_printf(m, " " FOURLONG, - regs->gprs[4], regs->gprs[5], - regs->gprs[6], regs->gprs[7]); - seq_printf(m, " " FOURLONG, - regs->gprs[8], regs->gprs[9], - regs->gprs[10], regs->gprs[11]); - seq_printf(m, " " FOURLONG, - regs->gprs[12], regs->gprs[13], - regs->gprs[14], regs->gprs[15]); - seq_printf(m, "User ACRS: %08x %08x %08x %08x\n", - task->thread.acrs[0], task->thread.acrs[1], - task->thread.acrs[2], task->thread.acrs[3]); - seq_printf(m, " %08x %08x %08x %08x\n", - task->thread.acrs[4], task->thread.acrs[5], - task->thread.acrs[6], task->thread.acrs[7]); - seq_printf(m, " %08x %08x %08x %08x\n", - task->thread.acrs[8], task->thread.acrs[9], - task->thread.acrs[10], task->thread.acrs[11]); - seq_printf(m, " %08x %08x %08x %08x\n", - task->thread.acrs[12], task->thread.acrs[13], - task->thread.acrs[14], task->thread.acrs[15]); -} - static DEFINE_SPINLOCK(die_lock); void die(const char * str, struct pt_regs * regs, long err) diff --git a/fs/proc/array.c b/fs/proc/array.c index df2b703b9d0f..7c99c1cf7e5c 100644 --- a/fs/proc/array.c +++ b/fs/proc/array.c @@ -353,9 +353,6 @@ int proc_pid_status(struct seq_file *m, struct pid_namespace *ns, task_cap(m, task); task_cpus_allowed(m, task); cpuset_task_status_allowed(m, task); -#if defined(CONFIG_S390) - task_show_regs(m, task); -#endif task_context_switch_counts(m, task); return 0; } From a7d6e4ecdb7648478ddec76d30d87d03d6e22b31 Mon Sep 17 00:00:00 2001 From: Andrea Arcangeli Date: Tue, 15 Feb 2011 19:02:45 +0100 Subject: [PATCH 267/277] thp: prevent hugepages during args/env copying into the user stack Transparent hugepages can only be created if rmap is fully functional. So we must prevent hugepages to be created while is_vma_temporary_stack() is true. This also optmizes away some harmless but unnecessary setting of khugepaged_scan.address and it switches some BUG_ON to VM_BUG_ON. Signed-off-by: Andrea Arcangeli Acked-by: Rik van Riel Signed-off-by: Linus Torvalds --- include/linux/huge_mm.h | 3 ++- mm/huge_memory.c | 35 ++++++++++++++++------------------- 2 files changed, 18 insertions(+), 20 deletions(-) diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h index 8e6c8c42bc3c..df29c8fde36b 100644 --- a/include/linux/huge_mm.h +++ b/include/linux/huge_mm.h @@ -57,7 +57,8 @@ extern pmd_t *page_check_address_pmd(struct page *page, (transparent_hugepage_flags & \ (1<vm_flags & VM_HUGEPAGE))) && \ - !((__vma)->vm_flags & VM_NOHUGEPAGE)) + !((__vma)->vm_flags & VM_NOHUGEPAGE) && \ + !is_vma_temporary_stack(__vma)) #define transparent_hugepage_defrag(__vma) \ ((transparent_hugepage_flags & \ (1<anon_vma || vma->vm_ops || vma->vm_file) goto out; + if (is_vma_temporary_stack(vma)) + goto out; VM_BUG_ON(is_linear_pfn_mapping(vma) || is_pfn_mapping(vma)); pgd = pgd_offset(mm, address); @@ -2032,32 +2034,27 @@ static unsigned int khugepaged_scan_mm_slot(unsigned int pages, if ((!(vma->vm_flags & VM_HUGEPAGE) && !khugepaged_always()) || (vma->vm_flags & VM_NOHUGEPAGE)) { + skip: progress++; continue; } - /* VM_PFNMAP vmas may have vm_ops null but vm_file set */ - if (!vma->anon_vma || vma->vm_ops || vma->vm_file) { - khugepaged_scan.address = vma->vm_end; - progress++; - continue; - } + if (!vma->anon_vma || vma->vm_ops || vma->vm_file) + goto skip; + if (is_vma_temporary_stack(vma)) + goto skip; + VM_BUG_ON(is_linear_pfn_mapping(vma) || is_pfn_mapping(vma)); hstart = (vma->vm_start + ~HPAGE_PMD_MASK) & HPAGE_PMD_MASK; hend = vma->vm_end & HPAGE_PMD_MASK; - if (hstart >= hend) { - progress++; - continue; - } + if (hstart >= hend) + goto skip; + if (khugepaged_scan.address > hend) + goto skip; if (khugepaged_scan.address < hstart) khugepaged_scan.address = hstart; - if (khugepaged_scan.address > hend) { - khugepaged_scan.address = hend + HPAGE_PMD_SIZE; - progress++; - continue; - } - BUG_ON(khugepaged_scan.address & ~HPAGE_PMD_MASK); + VM_BUG_ON(khugepaged_scan.address & ~HPAGE_PMD_MASK); while (khugepaged_scan.address < hend) { int ret; @@ -2086,7 +2083,7 @@ breakouterloop: breakouterloop_mmap_sem: spin_lock(&khugepaged_mm_lock); - BUG_ON(khugepaged_scan.mm_slot != mm_slot); + VM_BUG_ON(khugepaged_scan.mm_slot != mm_slot); /* * Release the current mm_slot if this mm is about to die, or * if we scanned all vmas of this mm. @@ -2241,9 +2238,9 @@ static int khugepaged(void *none) for (;;) { mutex_unlock(&khugepaged_mutex); - BUG_ON(khugepaged_thread != current); + VM_BUG_ON(khugepaged_thread != current); khugepaged_loop(); - BUG_ON(khugepaged_thread != current); + VM_BUG_ON(khugepaged_thread != current); mutex_lock(&khugepaged_mutex); if (!khugepaged_enabled()) From f9d693d237a173915fcfbd86b28753f93b7d142f Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Thu, 3 Feb 2011 21:31:20 +1000 Subject: [PATCH 268/277] m68k: remove arch specific non-optimized memcmp() The m68k arch implements its own memcmp() function. It is not optimized in any way (it is the most strait forward coding of memcmp you can get). Remove it and use the kernels standard memcmp() implementation. This also goes part of the way to fixing a regression caused by commit ea61bc461d09e8d331a307916530aaae808c72a2 ("m68k/m68knommu: merge MMU and non-MMU string.h"), which breaks non-coldfire non-mmu builds (which is the 68x328 and 68360 families). They currently have no memcmp() function defined, since there is none in the m68knommu/lib functions. Signed-off-by: Greg Ungerer Acked-by: Geert Uytterhoeven --- arch/m68k/include/asm/string.h | 6 ++---- arch/m68k/lib/string.c | 11 ----------- 2 files changed, 2 insertions(+), 15 deletions(-) diff --git a/arch/m68k/include/asm/string.h b/arch/m68k/include/asm/string.h index 65b131282837..ffc3c3f61243 100644 --- a/arch/m68k/include/asm/string.h +++ b/arch/m68k/include/asm/string.h @@ -102,12 +102,10 @@ static inline int strcmp(const char *cs, const char *ct) #define __HAVE_ARCH_MEMMOVE extern void *memmove(void *, const void *, __kernel_size_t); - -#define __HAVE_ARCH_MEMCMP -extern int memcmp(const void *, const void *, __kernel_size_t); -#define memcmp(d, s, n) __builtin_memcmp(d, s, n) #endif /* CONFIG_COLDFIRE */ +#define memcmp(d, s, n) __builtin_memcmp(d, s, n) + #define __HAVE_ARCH_MEMSET extern void *memset(void *, int, __kernel_size_t); #define memset(d, c, n) __builtin_memset(d, c, n) diff --git a/arch/m68k/lib/string.c b/arch/m68k/lib/string.c index 4253f870e54f..d399c5f25636 100644 --- a/arch/m68k/lib/string.c +++ b/arch/m68k/lib/string.c @@ -243,14 +243,3 @@ void *memmove(void *dest, const void *src, size_t n) return xdest; } EXPORT_SYMBOL(memmove); - -int memcmp(const void *cs, const void *ct, size_t count) -{ - const unsigned char *su1, *su2; - - for (su1 = cs, su2 = ct; count > 0; ++su1, ++su2, count--) - if (*su1 != *su2) - return *su1 < *su2 ? -1 : +1; - return 0; -} -EXPORT_SYMBOL(memcmp); From 982cd252ca0b63c11fe398c09c6f2b41217c78c0 Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Thu, 3 Feb 2011 21:58:39 +1000 Subject: [PATCH 269/277] m68knommu: add optimize memmove() function Add an m68k/coldfire optimized memmove() function for the m68knommu arch. This is the same function as used by m68k. Simple speed tests show this is faster once buffers are larger than 4 bytes, and significantly faster on much larger buffers (4 times faster above about 100 bytes). This also goes part of the way to fixing a regression caused by commit ea61bc461d09e8d331a307916530aaae808c72a2 ("m68k/m68knommu: merge MMU and non-MMU string.h"), which breaks non-coldfire non-mmu builds (which is the 68x328 and 68360 families). They currently have no memmove() fucntion defined, since there was none in the m68knommu/lib functions. Signed-off-by: Greg Ungerer --- arch/m68k/include/asm/string.h | 2 +- arch/m68knommu/lib/Makefile | 2 +- arch/m68knommu/lib/memmove.c | 105 +++++++++++++++++++++++++++++++++ 3 files changed, 107 insertions(+), 2 deletions(-) create mode 100644 arch/m68knommu/lib/memmove.c diff --git a/arch/m68k/include/asm/string.h b/arch/m68k/include/asm/string.h index ffc3c3f61243..32198454da70 100644 --- a/arch/m68k/include/asm/string.h +++ b/arch/m68k/include/asm/string.h @@ -99,10 +99,10 @@ static inline int strcmp(const char *cs, const char *ct) : "+a" (cs), "+a" (ct), "=d" (res)); return res; } +#endif /* CONFIG_COLDFIRE */ #define __HAVE_ARCH_MEMMOVE extern void *memmove(void *, const void *, __kernel_size_t); -#endif /* CONFIG_COLDFIRE */ #define memcmp(d, s, n) __builtin_memcmp(d, s, n) diff --git a/arch/m68knommu/lib/Makefile b/arch/m68knommu/lib/Makefile index d94d709665aa..32d852e586d7 100644 --- a/arch/m68knommu/lib/Makefile +++ b/arch/m68knommu/lib/Makefile @@ -4,4 +4,4 @@ lib-y := ashldi3.o ashrdi3.o lshrdi3.o \ muldi3.o mulsi3.o divsi3.o udivsi3.o modsi3.o umodsi3.o \ - checksum.o memcpy.o memset.o delay.o + checksum.o memcpy.o memmove.o memset.o delay.o diff --git a/arch/m68knommu/lib/memmove.c b/arch/m68knommu/lib/memmove.c new file mode 100644 index 000000000000..b3dcfe9dab7e --- /dev/null +++ b/arch/m68knommu/lib/memmove.c @@ -0,0 +1,105 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +#define __IN_STRING_C + +#include +#include + +void *memmove(void *dest, const void *src, size_t n) +{ + void *xdest = dest; + size_t temp; + + if (!n) + return xdest; + + if (dest < src) { + if ((long)dest & 1) { + char *cdest = dest; + const char *csrc = src; + *cdest++ = *csrc++; + dest = cdest; + src = csrc; + n--; + } + if (n > 2 && (long)dest & 2) { + short *sdest = dest; + const short *ssrc = src; + *sdest++ = *ssrc++; + dest = sdest; + src = ssrc; + n -= 2; + } + temp = n >> 2; + if (temp) { + long *ldest = dest; + const long *lsrc = src; + temp--; + do + *ldest++ = *lsrc++; + while (temp--); + dest = ldest; + src = lsrc; + } + if (n & 2) { + short *sdest = dest; + const short *ssrc = src; + *sdest++ = *ssrc++; + dest = sdest; + src = ssrc; + } + if (n & 1) { + char *cdest = dest; + const char *csrc = src; + *cdest = *csrc; + } + } else { + dest = (char *)dest + n; + src = (const char *)src + n; + if ((long)dest & 1) { + char *cdest = dest; + const char *csrc = src; + *--cdest = *--csrc; + dest = cdest; + src = csrc; + n--; + } + if (n > 2 && (long)dest & 2) { + short *sdest = dest; + const short *ssrc = src; + *--sdest = *--ssrc; + dest = sdest; + src = ssrc; + n -= 2; + } + temp = n >> 2; + if (temp) { + long *ldest = dest; + const long *lsrc = src; + temp--; + do + *--ldest = *--lsrc; + while (temp--); + dest = ldest; + src = lsrc; + } + if (n & 2) { + short *sdest = dest; + const short *ssrc = src; + *--sdest = *--ssrc; + dest = sdest; + src = ssrc; + } + if (n & 1) { + char *cdest = dest; + const char *csrc = src; + *--cdest = *--csrc; + } + } + return xdest; +} +EXPORT_SYMBOL(memmove); From b14769d94f697b118d960d7f73eb60ff7fa59af0 Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Tue, 8 Feb 2011 14:40:44 +1000 Subject: [PATCH 270/277] m68knommu: fix mis-named variable int set_irq_chip loop MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Compiling for 68360 targets gives: CC arch/m68knommu/platform/68360/ints.o arch/m68knommu/platform/68360/ints.c: In function ‘init_IRQ’: arch/m68knommu/platform/68360/ints.c:135:16: error: ‘irq’ undeclared (first use in this function) arch/m68knommu/platform/68360/ints.c:135:16: note: each undeclared identifier is reported only once for each function it appears in Fix variable name used. Signed-off-by: Greg Ungerer --- arch/m68knommu/platform/68360/ints.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/m68knommu/platform/68360/ints.c b/arch/m68knommu/platform/68360/ints.c index ad96ab1051f0..a29041c1a8a0 100644 --- a/arch/m68knommu/platform/68360/ints.c +++ b/arch/m68knommu/platform/68360/ints.c @@ -132,8 +132,8 @@ void init_IRQ(void) pquicc->intr_cimr = 0x00000000; for (i = 0; (i < NR_IRQS); i++) { - set_irq_chip(irq, &intc_irq_chip); - set_irq_handler(irq, handle_level_irq); + set_irq_chip(i, &intc_irq_chip); + set_irq_handler(i, handle_level_irq); } } From 81174262e2e653e15c7ef23efa5f88fe31e91e2a Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Tue, 8 Feb 2011 14:45:59 +1000 Subject: [PATCH 271/277] m68knommu: add missing linker __modver section Add missing linker section __modver to fix: LD vmlinux /usr/local/bin/../m68k-uclinux/bin/ld.real: error: no memory region specified for loadable section `__modver' Signed-off-by: Greg Ungerer --- arch/m68knommu/kernel/vmlinux.lds.S | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/m68knommu/kernel/vmlinux.lds.S b/arch/m68knommu/kernel/vmlinux.lds.S index ef332136f96d..47e15ebfd893 100644 --- a/arch/m68knommu/kernel/vmlinux.lds.S +++ b/arch/m68knommu/kernel/vmlinux.lds.S @@ -141,6 +141,12 @@ SECTIONS { *(__param) __stop___param = .; + /* Built-in module versions */ + . = ALIGN(4) ; + __start___modver = .; + *(__modver) + __stop___modver = .; + . = ALIGN(4) ; _etext = . ; } > TEXT From bc0c36d3c831b5f33ca0dab39535f5deb8c55b62 Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Tue, 8 Feb 2011 21:32:36 +1000 Subject: [PATCH 272/277] m68knommu: fix dereference of port.tty The struct_tty associated with a port is now a direct pointer from within the local private driver info struct. So fix all uses of it. Signed-off-by: Greg Ungerer --- drivers/tty/serial/68328serial.c | 29 ++++++++++++++--------------- 1 file changed, 14 insertions(+), 15 deletions(-) diff --git a/drivers/tty/serial/68328serial.c b/drivers/tty/serial/68328serial.c index be0ebce36e54..de0160e3f8c4 100644 --- a/drivers/tty/serial/68328serial.c +++ b/drivers/tty/serial/68328serial.c @@ -262,7 +262,7 @@ static void status_handle(struct m68k_serial *info, unsigned short status) static void receive_chars(struct m68k_serial *info, unsigned short rx) { - struct tty_struct *tty = info->port.tty; + struct tty_struct *tty = info->tty; m68328_uart *uart = &uart_addr[info->line]; unsigned char ch, flag; @@ -329,7 +329,7 @@ static void transmit_chars(struct m68k_serial *info) goto clear_and_return; } - if((info->xmit_cnt <= 0) || info->port.tty->stopped) { + if((info->xmit_cnt <= 0) || info->tty->stopped) { /* That's peculiar... TX ints off */ uart->ustcnt &= ~USTCNT_TX_INTR_MASK; goto clear_and_return; @@ -383,7 +383,7 @@ static void do_softint(struct work_struct *work) struct m68k_serial *info = container_of(work, struct m68k_serial, tqueue); struct tty_struct *tty; - tty = info->port.tty; + tty = info->tty; if (!tty) return; #if 0 @@ -407,7 +407,7 @@ static void do_serial_hangup(struct work_struct *work) struct m68k_serial *info = container_of(work, struct m68k_serial, tqueue_hangup); struct tty_struct *tty; - tty = info->port.tty; + tty = info->tty; if (!tty) return; @@ -451,8 +451,8 @@ static int startup(struct m68k_serial * info) uart->ustcnt = USTCNT_UEN | USTCNT_RXEN | USTCNT_RX_INTR_MASK; #endif - if (info->port.tty) - clear_bit(TTY_IO_ERROR, &info->port.tty->flags); + if (info->tty) + clear_bit(TTY_IO_ERROR, &info->tty->flags); info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; /* @@ -486,8 +486,8 @@ static void shutdown(struct m68k_serial * info) info->xmit_buf = 0; } - if (info->port.tty) - set_bit(TTY_IO_ERROR, &info->port.tty->flags); + if (info->tty) + set_bit(TTY_IO_ERROR, &info->tty->flags); info->flags &= ~S_INITIALIZED; local_irq_restore(flags); @@ -553,9 +553,9 @@ static void change_speed(struct m68k_serial *info) unsigned cflag; int i; - if (!info->port.tty || !info->port.tty->termios) + if (!info->tty || !info->tty->termios) return; - cflag = info->port.tty->termios->c_cflag; + cflag = info->tty->termios->c_cflag; if (!(port = info->port)) return; @@ -970,7 +970,6 @@ static void send_break(struct m68k_serial * info, unsigned int duration) static int rs_ioctl(struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg) { - int error; struct m68k_serial * info = (struct m68k_serial *)tty->driver_data; int retval; @@ -1104,7 +1103,7 @@ static void rs_close(struct tty_struct *tty, struct file * filp) tty_ldisc_flush(tty); tty->closing = 0; info->event = 0; - info->port.tty = NULL; + info->tty = NULL; #warning "This is not and has never been valid so fix it" #if 0 if (tty->ldisc.num != ldiscs[N_TTY].num) { @@ -1142,7 +1141,7 @@ void rs_hangup(struct tty_struct *tty) info->event = 0; info->count = 0; info->flags &= ~S_NORMAL_ACTIVE; - info->port.tty = NULL; + info->tty = NULL; wake_up_interruptible(&info->open_wait); } @@ -1261,7 +1260,7 @@ int rs_open(struct tty_struct *tty, struct file * filp) info->count++; tty->driver_data = info; - info->port.tty = tty; + info->tty = tty; /* * Start up serial port @@ -1338,7 +1337,7 @@ rs68328_init(void) info = &m68k_soft[i]; info->magic = SERIAL_MAGIC; info->port = (int) &uart_addr[i]; - info->port.tty = NULL; + info->tty = NULL; info->irq = uart_irqs[i]; info->custom_divisor = 16; info->close_delay = 50; From 4531dab4294435d6f57ecd942831a79bab303287 Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Tue, 8 Feb 2011 21:40:11 +1000 Subject: [PATCH 273/277] m68knommu: remove use of IRQ_FLG_LOCK from 68360 platform support The m68knommu arch does not define or use IRQ_FLG_LOCK in its irq subsystem. Remove obsolete use of it. Signed-off-by: Greg Ungerer --- arch/m68knommu/platform/68360/commproc.c | 2 +- arch/m68knommu/platform/68360/config.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/m68knommu/platform/68360/commproc.c b/arch/m68knommu/platform/68360/commproc.c index f27e688c404e..8e4e10cc0080 100644 --- a/arch/m68knommu/platform/68360/commproc.c +++ b/arch/m68knommu/platform/68360/commproc.c @@ -210,7 +210,7 @@ void cpm_install_handler(int vec, void (*handler)(), void *dev_id) { - request_irq(vec, handler, IRQ_FLG_LOCK, "timer", dev_id); + request_irq(vec, handler, 0, "timer", dev_id); /* if (cpm_vecs[vec].handler != 0) */ /* printk(KERN_INFO "CPM interrupt %x replacing %x\n", */ diff --git a/arch/m68knommu/platform/68360/config.c b/arch/m68knommu/platform/68360/config.c index ac629fa30099..9dd5bca38749 100644 --- a/arch/m68knommu/platform/68360/config.c +++ b/arch/m68knommu/platform/68360/config.c @@ -75,7 +75,7 @@ void hw_timer_init(void) /* Set compare register 32Khz / 32 / 10 = 100 */ TCMP = 10; - request_irq(IRQ_MACHSPEC | 1, timer_routine, IRQ_FLG_LOCK, "timer", NULL); + request_irq(IRQ_MACHSPEC | 1, timer_routine, 0, "timer", NULL); #endif /* General purpose quicc timers: MC68360UM p7-20 */ From 86d306c96046be597147d9f8ff163a052b3845d8 Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Wed, 9 Feb 2011 13:43:58 +1000 Subject: [PATCH 274/277] m68knommu: set flow handler for secondary interrupt controller of 5249 The secondary interrupt controller of the ColdFire 5249 code is not setting the edge triggered flow handler. Set it. Signed-off-by: Greg Ungerer --- arch/m68knommu/platform/5249/intc2.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/m68knommu/platform/5249/intc2.c b/arch/m68knommu/platform/5249/intc2.c index d09d9da04537..c5151f846591 100644 --- a/arch/m68knommu/platform/5249/intc2.c +++ b/arch/m68knommu/platform/5249/intc2.c @@ -50,8 +50,10 @@ static int __init mcf_intc2_init(void) int irq; /* GPIO interrupt sources */ - for (irq = MCFINTC2_GPIOIRQ0; (irq <= MCFINTC2_GPIOIRQ7); irq++) + for (irq = MCFINTC2_GPIOIRQ0; (irq <= MCFINTC2_GPIOIRQ7); irq++) { irq_desc[irq].chip = &intc2_irq_gpio_chip; + set_irq_handler(irq, handle_edge_irq); + } return 0; } From 85e2efbb1db9a18d218006706d6e4fbeb0216213 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 15 Feb 2011 19:23:45 -0800 Subject: [PATCH 275/277] Linux 2.6.38-rc5 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index c9c8c8fd2591..5e40aa2acbff 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 38 -EXTRAVERSION = -rc4 +EXTRAVERSION = -rc5 NAME = Flesh-Eating Bats with Fangs # *DOCUMENTATION* From 7d44ec193d95416d1342cdd86392a1eeb7461186 Mon Sep 17 00:00:00 2001 From: Cyrill Gorcunov Date: Wed, 16 Feb 2011 14:08:02 +0300 Subject: [PATCH 276/277] perf, x86: P4 PMU: Fix spurious NMI messages Several people have reported spurious unknown NMI messages on some P4 CPUs. This patch fixes it by checking for an overflow (negative counter values) directly, instead of relying on the P4_CCCR_OVF bit. Reported-by: George Spelvin Reported-by: Meelis Roos Reported-by: Don Zickus Reported-by: Dave Airlie Signed-off-by: Cyrill Gorcunov Cc: Lin Ming Cc: Don Zickus Cc: Peter Zijlstra LKML-Reference: Signed-off-by: Ingo Molnar --- arch/x86/include/asm/perf_event_p4.h | 1 + arch/x86/kernel/cpu/perf_event_p4.c | 11 ++++++++--- 2 files changed, 9 insertions(+), 3 deletions(-) diff --git a/arch/x86/include/asm/perf_event_p4.h b/arch/x86/include/asm/perf_event_p4.h index e2f6a99f14ab..cc29086e30cd 100644 --- a/arch/x86/include/asm/perf_event_p4.h +++ b/arch/x86/include/asm/perf_event_p4.h @@ -22,6 +22,7 @@ #define ARCH_P4_CNTRVAL_BITS (40) #define ARCH_P4_CNTRVAL_MASK ((1ULL << ARCH_P4_CNTRVAL_BITS) - 1) +#define ARCH_P4_UNFLAGGED_BIT ((1ULL) << (ARCH_P4_CNTRVAL_BITS - 1)) #define P4_ESCR_EVENT_MASK 0x7e000000U #define P4_ESCR_EVENT_SHIFT 25 diff --git a/arch/x86/kernel/cpu/perf_event_p4.c b/arch/x86/kernel/cpu/perf_event_p4.c index f7a0993c1e7c..ff751a9f182b 100644 --- a/arch/x86/kernel/cpu/perf_event_p4.c +++ b/arch/x86/kernel/cpu/perf_event_p4.c @@ -770,9 +770,14 @@ static inline int p4_pmu_clear_cccr_ovf(struct hw_perf_event *hwc) return 1; } - /* it might be unflagged overflow */ - rdmsrl(hwc->event_base + hwc->idx, v); - if (!(v & ARCH_P4_CNTRVAL_MASK)) + /* + * In some circumstances the overflow might issue an NMI but did + * not set P4_CCCR_OVF bit. Because a counter holds a negative value + * we simply check for high bit being set, if it's cleared it means + * the counter has reached zero value and continued counting before + * real NMI signal was received: + */ + if (!(v & ARCH_P4_UNFLAGGED_BIT)) return 1; return 0; From 4fe757dd48a9e95e1a071291f15dda5421dacb66 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Tue, 15 Feb 2011 22:26:07 +0100 Subject: [PATCH 277/277] perf: Fix throttle logic It was possible to call pmu::start() on an already running event. In particular this lead so some wreckage as the hrtimer events would re-initialize active timers. This was due to throttled events being activated again by scheduling. Scheduling in a context would add and force start events, resulting in running events with a possible throttle status. The next tick to hit that task will then try to unthrottle the event and call ->start() on an already running event. Reported-by: Jeff Moyer Cc: Signed-off-by: Peter Zijlstra LKML-Reference: Signed-off-by: Ingo Molnar --- kernel/perf_event.c | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-) diff --git a/kernel/perf_event.c b/kernel/perf_event.c index 999835b6112b..656222fcf767 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -782,6 +782,10 @@ retry: raw_spin_unlock_irq(&ctx->lock); } +#define MAX_INTERRUPTS (~0ULL) + +static void perf_log_throttle(struct perf_event *event, int enable); + static int event_sched_in(struct perf_event *event, struct perf_cpu_context *cpuctx, @@ -794,6 +798,17 @@ event_sched_in(struct perf_event *event, event->state = PERF_EVENT_STATE_ACTIVE; event->oncpu = smp_processor_id(); + + /* + * Unthrottle events, since we scheduled we might have missed several + * ticks already, also for a heavily scheduling task there is little + * guarantee it'll get a tick in a timely manner. + */ + if (unlikely(event->hw.interrupts == MAX_INTERRUPTS)) { + perf_log_throttle(event, 1); + event->hw.interrupts = 0; + } + /* * The new state must be visible before we turn it on in the hardware: */ @@ -1596,10 +1611,6 @@ void __perf_event_task_sched_in(struct task_struct *task) } } -#define MAX_INTERRUPTS (~0ULL) - -static void perf_log_throttle(struct perf_event *event, int enable); - static u64 perf_calculate_period(struct perf_event *event, u64 nsec, u64 count) { u64 frequency = event->attr.sample_freq;