diff --git a/Documentation/DocBook/tracepoint.tmpl b/Documentation/DocBook/tracepoint.tmpl index 8bca1d5cec09..e8473eae2a20 100644 --- a/Documentation/DocBook/tracepoint.tmpl +++ b/Documentation/DocBook/tracepoint.tmpl @@ -16,6 +16,15 @@ + + William + Cohen + +
+ wcohen@redhat.com +
+
+
@@ -91,4 +100,8 @@ !Iinclude/trace/events/signal.h + + Block IO +!Iinclude/trace/events/block.h + diff --git a/Documentation/block/biodoc.txt b/Documentation/block/biodoc.txt index 6fab97ea7e6b..508b5b2b0289 100644 --- a/Documentation/block/biodoc.txt +++ b/Documentation/block/biodoc.txt @@ -1162,8 +1162,8 @@ where a driver received a request ala this before: As mentioned, there is no virtual mapping of a bio. For DMA, this is not a problem as the driver probably never will need a virtual mapping. -Instead it needs a bus mapping (pci_map_page for a single segment or -use blk_rq_map_sg for scatter gather) to be able to ship it to the driver. For +Instead it needs a bus mapping (dma_map_page for a single segment or +use dma_map_sg for scatter gather) to be able to ship it to the driver. For PIO drivers (or drivers that need to revert to PIO transfer once in a while (IDE for example)), where the CPU is doing the actual data transfer a virtual mapping is needed. If the driver supports highmem I/O, diff --git a/Documentation/connector/cn_test.c b/Documentation/connector/cn_test.c index b07add3467f1..7764594778d4 100644 --- a/Documentation/connector/cn_test.c +++ b/Documentation/connector/cn_test.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include diff --git a/Documentation/fb/imacfb.txt b/Documentation/fb/efifb.txt similarity index 66% rename from Documentation/fb/imacfb.txt rename to Documentation/fb/efifb.txt index 316ec9bb7deb..a59916c29b33 100644 --- a/Documentation/fb/imacfb.txt +++ b/Documentation/fb/efifb.txt @@ -1,9 +1,9 @@ -What is imacfb? +What is efifb? =============== This is a generic EFI platform driver for Intel based Apple computers. -Imacfb is only for EFI booted Intel Macs. +efifb is only for EFI booted Intel Macs. Supported Hardware ================== @@ -16,16 +16,16 @@ MacMini How to use it? ============== -Imacfb does not have any kind of autodetection of your machine. +efifb does not have any kind of autodetection of your machine. You have to add the following kernel parameters in your elilo.conf: Macbook : - video=imacfb:macbook + video=efifb:macbook MacMini : - video=imacfb:mini + video=efifb:mini Macbook Pro 15", iMac 17" : - video=imacfb:i17 + video=efifb:i17 Macbook Pro 17", iMac 20" : - video=imacfb:i20 + video=efifb:i20 -- Edgar Hucek diff --git a/Documentation/filesystems/9p.txt b/Documentation/filesystems/9p.txt index 57e0b80a5274..c0236e753bc8 100644 --- a/Documentation/filesystems/9p.txt +++ b/Documentation/filesystems/9p.txt @@ -37,6 +37,15 @@ For Plan 9 From User Space applications (http://swtch.com/plan9) mount -t 9p `namespace`/acme /mnt/9 -o trans=unix,uname=$USER +For server running on QEMU host with virtio transport: + + mount -t 9p -o trans=virtio /mnt/9 + +where mount_tag is the tag associated by the server to each of the exported +mount points. Each 9P export is seen by the client as a virtio device with an +associated "mount_tag" property. Available mount tags can be +seen by reading /sys/bus/virtio/drivers/9pnet_virtio/virtio/mount_tag files. + OPTIONS ======= @@ -47,7 +56,7 @@ OPTIONS fd - used passed file descriptors for connection (see rfdno and wfdno) virtio - connect to the next virtio channel available - (from lguest or KVM with trans_virtio module) + (from QEMU with trans_virtio module) rdma - connect to a specified RDMA channel uname=name user name to attempt mount as on the remote server. The @@ -85,7 +94,12 @@ OPTIONS port=n port to connect to on the remote server - noextend force legacy mode (no 9p2000.u semantics) + noextend force legacy mode (no 9p2000.u or 9p2000.L semantics) + + version=name Select 9P protocol version. Valid options are: + 9p2000 - Legacy mode (same as noextend) + 9p2000.u - Use 9P2000.u protocol + 9p2000.L - Use 9P2000.L protocol dfltuid attempt to mount as a particular uid diff --git a/Documentation/networking/stmmac.txt b/Documentation/networking/stmmac.txt new file mode 100644 index 000000000000..7ee770b5ef5f --- /dev/null +++ b/Documentation/networking/stmmac.txt @@ -0,0 +1,143 @@ + STMicroelectronics 10/100/1000 Synopsys Ethernet driver + +Copyright (C) 2007-2010 STMicroelectronics Ltd +Author: Giuseppe Cavallaro + +This is the driver for the MAC 10/100/1000 on-chip Ethernet controllers +(Synopsys IP blocks); it has been fully tested on STLinux platforms. + +Currently this network device driver is for all STM embedded MAC/GMAC +(7xxx SoCs). + +DWC Ether MAC 10/100/1000 Universal version 3.41a and DWC Ether MAC 10/100 +Universal version 4.0 have been used for developing the first code +implementation. + +Please, for more information also visit: www.stlinux.com + +1) Kernel Configuration +The kernel configuration option is STMMAC_ETH: + Device Drivers ---> Network device support ---> Ethernet (1000 Mbit) ---> + STMicroelectronics 10/100/1000 Ethernet driver (STMMAC_ETH) + +2) Driver parameters list: + debug: message level (0: no output, 16: all); + phyaddr: to manually provide the physical address to the PHY device; + dma_rxsize: DMA rx ring size; + dma_txsize: DMA tx ring size; + buf_sz: DMA buffer size; + tc: control the HW FIFO threshold; + tx_coe: Enable/Disable Tx Checksum Offload engine; + watchdog: transmit timeout (in milliseconds); + flow_ctrl: Flow control ability [on/off]; + pause: Flow Control Pause Time; + tmrate: timer period (only if timer optimisation is configured). + +3) Command line options +Driver parameters can be also passed in command line by using: + stmmaceth=dma_rxsize:128,dma_txsize:512 + +4) Driver information and notes + +4.1) Transmit process +The xmit method is invoked when the kernel needs to transmit a packet; it sets +the descriptors in the ring and informs the DMA engine that there is a packet +ready to be transmitted. +Once the controller has finished transmitting the packet, an interrupt is +triggered; So the driver will be able to release the socket buffers. +By default, the driver sets the NETIF_F_SG bit in the features field of the +net_device structure enabling the scatter/gather feature. + +4.2) Receive process +When one or more packets are received, an interrupt happens. The interrupts +are not queued so the driver has to scan all the descriptors in the ring during +the receive process. +This is based on NAPI so the interrupt handler signals only if there is work to be +done, and it exits. +Then the poll method will be scheduled at some future point. +The incoming packets are stored, by the DMA, in a list of pre-allocated socket +buffers in order to avoid the memcpy (Zero-copy). + +4.3) Timer-Driver Interrupt +Instead of having the device that asynchronously notifies the frame receptions, the +driver configures a timer to generate an interrupt at regular intervals. +Based on the granularity of the timer, the frames that are received by the device +will experience different levels of latency. Some NICs have dedicated timer +device to perform this task. STMMAC can use either the RTC device or the TMU +channel 2 on STLinux platforms. +The timers frequency can be passed to the driver as parameter; when change it, +take care of both hardware capability and network stability/performance impact. +Several performance tests on STM platforms showed this optimisation allows to spare +the CPU while having the maximum throughput. + +4.4) WOL +Wake up on Lan feature through Magic Frame is only supported for the GMAC +core. + +4.5) DMA descriptors +Driver handles both normal and enhanced descriptors. The latter has been only +tested on DWC Ether MAC 10/100/1000 Universal version 3.41a. + +4.6) Ethtool support +Ethtool is supported. Driver statistics and internal errors can be taken using: +ethtool -S ethX command. It is possible to dump registers etc. + +4.7) Jumbo and Segmentation Offloading +Jumbo frames are supported and tested for the GMAC. +The GSO has been also added but it's performed in software. +LRO is not supported. + +4.8) Physical +The driver is compatible with PAL to work with PHY and GPHY devices. + +4.9) Platform information +Several information came from the platform; please refer to the +driver's Header file in include/linux directory. + +struct plat_stmmacenet_data { + int bus_id; + int pbl; + int has_gmac; + void (*fix_mac_speed)(void *priv, unsigned int speed); + void (*bus_setup)(unsigned long ioaddr); +#ifdef CONFIG_STM_DRIVERS + struct stm_pad_config *pad_config; +#endif + void *bsp_priv; +}; + +Where: +- pbl (Programmable Burst Length) is maximum number of + beats to be transferred in one DMA transaction. + GMAC also enables the 4xPBL by default. +- fix_mac_speed and bus_setup are used to configure internal target + registers (on STM platforms); +- has_gmac: GMAC core is on board (get it at run-time in the next step); +- bus_id: bus identifier. + +struct plat_stmmacphy_data { + int bus_id; + int phy_addr; + unsigned int phy_mask; + int interface; + int (*phy_reset)(void *priv); + void *priv; +}; + +Where: +- bus_id: bus identifier; +- phy_addr: physical address used for the attached phy device; + set it to -1 to get it at run-time; +- interface: physical MII interface mode; +- phy_reset: hook to reset HW function. + +TODO: +- Continue to make the driver more generic and suitable for other Synopsys + Ethernet controllers used on other architectures (i.e. ARM). +- 10G controllers are not supported. +- MAC uses Normal descriptors and GMAC uses enhanced ones. + This is a limit that should be reviewed. MAC could want to + use the enhanced structure. +- Checksumming: Rx/Tx csum is done in HW in case of GMAC only. +- Review the timer optimisation code to use an embedded device that seems to be + available in new chip generations. diff --git a/Documentation/networking/timestamping.txt b/Documentation/networking/timestamping.txt index 0e58b4539176..e8c8f4f06c67 100644 --- a/Documentation/networking/timestamping.txt +++ b/Documentation/networking/timestamping.txt @@ -41,11 +41,12 @@ SOF_TIMESTAMPING_SOFTWARE: return system time stamp generated in SOF_TIMESTAMPING_TX/RX determine how time stamps are generated. SOF_TIMESTAMPING_RAW/SYS determine how they are reported in the following control message: - struct scm_timestamping { - struct timespec systime; - struct timespec hwtimetrans; - struct timespec hwtimeraw; - }; + +struct scm_timestamping { + struct timespec systime; + struct timespec hwtimetrans; + struct timespec hwtimeraw; +}; recvmsg() can be used to get this control message for regular incoming packets. For send time stamps the outgoing packet is looped back to @@ -87,12 +88,13 @@ by the network device and will be empty without that support. SIOCSHWTSTAMP: Hardware time stamping must also be initialized for each device driver -that is expected to do hardware time stamping. The parameter is: +that is expected to do hardware time stamping. The parameter is defined in +/include/linux/net_tstamp.h as: struct hwtstamp_config { - int flags; /* no flags defined right now, must be zero */ - int tx_type; /* HWTSTAMP_TX_* */ - int rx_filter; /* HWTSTAMP_FILTER_* */ + int flags; /* no flags defined right now, must be zero */ + int tx_type; /* HWTSTAMP_TX_* */ + int rx_filter; /* HWTSTAMP_FILTER_* */ }; Desired behavior is passed into the kernel and to a specific device by @@ -139,42 +141,56 @@ enum { /* time stamp any incoming packet */ HWTSTAMP_FILTER_ALL, - /* return value: time stamp all packets requested plus some others */ - HWTSTAMP_FILTER_SOME, + /* return value: time stamp all packets requested plus some others */ + HWTSTAMP_FILTER_SOME, /* PTP v1, UDP, any kind of event packet */ HWTSTAMP_FILTER_PTP_V1_L4_EVENT, - ... + /* for the complete list of values, please check + * the include file /include/linux/net_tstamp.h + */ }; DEVICE IMPLEMENTATION A driver which supports hardware time stamping must support the -SIOCSHWTSTAMP ioctl. Time stamps for received packets must be stored -in the skb with skb_hwtstamp_set(). +SIOCSHWTSTAMP ioctl and update the supplied struct hwtstamp_config with +the actual values as described in the section on SIOCSHWTSTAMP. + +Time stamps for received packets must be stored in the skb. To get a pointer +to the shared time stamp structure of the skb call skb_hwtstamps(). Then +set the time stamps in the structure: + +struct skb_shared_hwtstamps { + /* hardware time stamp transformed into duration + * since arbitrary point in time + */ + ktime_t hwtstamp; + ktime_t syststamp; /* hwtstamp transformed to system time base */ +}; Time stamps for outgoing packets are to be generated as follows: -- In hard_start_xmit(), check if skb_hwtstamp_check_tx_hardware() - returns non-zero. If yes, then the driver is expected - to do hardware time stamping. +- In hard_start_xmit(), check if skb_tx(skb)->hardware is set no-zero. + If yes, then the driver is expected to do hardware time stamping. - If this is possible for the skb and requested, then declare - that the driver is doing the time stamping by calling - skb_hwtstamp_tx_in_progress(). A driver not supporting - hardware time stamping doesn't do that. A driver must never - touch sk_buff::tstamp! It is used to store how time stamping - for an outgoing packets is to be done. + that the driver is doing the time stamping by setting the field + skb_tx(skb)->in_progress non-zero. You might want to keep a pointer + to the associated skb for the next step and not free the skb. A driver + not supporting hardware time stamping doesn't do that. A driver must + never touch sk_buff::tstamp! It is used to store software generated + time stamps by the network subsystem. - As soon as the driver has sent the packet and/or obtained a hardware time stamp for it, it passes the time stamp back by calling skb_hwtstamp_tx() with the original skb, the raw - hardware time stamp and a handle to the device (necessary - to convert the hardware time stamp to system time). If obtaining - the hardware time stamp somehow fails, then the driver should - not fall back to software time stamping. The rationale is that - this would occur at a later time in the processing pipeline - than other software time stamping and therefore could lead - to unexpected deltas between time stamps. -- If the driver did not call skb_hwtstamp_tx_in_progress(), then + hardware time stamp. skb_hwtstamp_tx() clones the original skb and + adds the timestamps, therefore the original skb has to be freed now. + If obtaining the hardware time stamp somehow fails, then the driver + should not fall back to software time stamping. The rationale is that + this would occur at a later time in the processing pipeline than other + software time stamping and therefore could lead to unexpected deltas + between time stamps. +- If the driver did not call set skb_tx(skb)->in_progress, then dev_hard_start_xmit() checks whether software time stamping is wanted as fallback and potentially generates the time stamp. diff --git a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/qe.txt b/Documentation/powerpc/dts-bindings/fsl/cpm_qe/qe.txt index 6e37be1eeb2d..4f8930263dd9 100644 --- a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/qe.txt +++ b/Documentation/powerpc/dts-bindings/fsl/cpm_qe/qe.txt @@ -21,6 +21,15 @@ Required properties: - fsl,qe-num-snums: define how many serial number(SNUM) the QE can use for the threads. +Optional properties: +- fsl,firmware-phandle: + Usage: required only if there is no fsl,qe-firmware child node + Value type: + Definition: Points to a firmware node (see "QE Firmware Node" below) + that contains the firmware that should be uploaded for this QE. + The compatible property for the firmware node should say, + "fsl,qe-firmware". + Recommended properties - brg-frequency : the internal clock source frequency for baud-rate generators in Hz. @@ -59,3 +68,48 @@ Example: reg = <0 c000>; }; }; + +* QE Firmware Node + +This node defines a firmware binary that is embedded in the device tree, for +the purpose of passing the firmware from bootloader to the kernel, or from +the hypervisor to the guest. + +The firmware node itself contains the firmware binary contents, a compatible +property, and any firmware-specific properties. The node should be placed +inside a QE node that needs it. Doing so eliminates the need for a +fsl,firmware-phandle property. Other QE nodes that need the same firmware +should define an fsl,firmware-phandle property that points to the firmware node +in the first QE node. + +The fsl,firmware property can be specified in the DTS (possibly using incbin) +or can be inserted by the boot loader at boot time. + +Required properties: + - compatible + Usage: required + Value type: + Definition: A standard property. Specify a string that indicates what + kind of firmware it is. For QE, this should be "fsl,qe-firmware". + + - fsl,firmware + Usage: required + Value type: , encoded as an array of bytes + Definition: A standard property. This property contains the firmware + binary "blob". + +Example: + qe1@e0080000 { + compatible = "fsl,qe"; + qe_firmware:qe-firmware { + compatible = "fsl,qe-firmware"; + fsl,firmware = [0x70 0xcd 0x00 0x00 0x01 0x46 0x45 ...]; + }; + ... + }; + + qe2@e0090000 { + compatible = "fsl,qe"; + fsl,firmware-phandle = <&qe_firmware>; + ... + }; diff --git a/Documentation/sound/alsa/HD-Audio.txt b/Documentation/sound/alsa/HD-Audio.txt index f4dd3bf99d12..98d14cb8a85d 100644 --- a/Documentation/sound/alsa/HD-Audio.txt +++ b/Documentation/sound/alsa/HD-Audio.txt @@ -119,10 +119,18 @@ the codec slots 0 and 1 no matter what the hardware reports. Interrupt Handling ~~~~~~~~~~~~~~~~~~ -In rare but some cases, the interrupt isn't properly handled as -default. You would notice this by the DMA transfer error reported by -ALSA PCM core, for example. Using MSI might help in such a case. -Pass `enable_msi=1` option for enabling MSI. +HD-audio driver uses MSI as default (if available) since 2.6.33 +kernel as MSI works better on some machines, and in general, it's +better for performance. However, Nvidia controllers showed bad +regressions with MSI (especially in a combination with AMD chipset), +thus we disabled MSI for them. + +There seem also still other devices that don't work with MSI. If you +see a regression wrt the sound quality (stuttering, etc) or a lock-up +in the recent kernel, try to pass `enable_msi=0` option to disable +MSI. If it works, you can add the known bad device to the blacklist +defined in hda_intel.c. In such a case, please report and give the +patch back to the upstream developer. HD-AUDIO CODEC diff --git a/Documentation/watchdog/src/watchdog-simple.c b/Documentation/watchdog/src/watchdog-simple.c index 4cf72f3fa8e9..ba45803a2216 100644 --- a/Documentation/watchdog/src/watchdog-simple.c +++ b/Documentation/watchdog/src/watchdog-simple.c @@ -17,9 +17,6 @@ int main(void) ret = -1; break; } - ret = fsync(fd); - if (ret) - break; sleep(10); } close(fd); diff --git a/Documentation/watchdog/src/watchdog-test.c b/Documentation/watchdog/src/watchdog-test.c index a750532ffcf8..63fdc34ceb98 100644 --- a/Documentation/watchdog/src/watchdog-test.c +++ b/Documentation/watchdog/src/watchdog-test.c @@ -31,6 +31,8 @@ static void keep_alive(void) */ int main(int argc, char *argv[]) { + int flags; + fd = open("/dev/watchdog", O_WRONLY); if (fd == -1) { @@ -41,12 +43,14 @@ int main(int argc, char *argv[]) if (argc > 1) { if (!strncasecmp(argv[1], "-d", 2)) { - ioctl(fd, WDIOC_SETOPTIONS, WDIOS_DISABLECARD); + flags = WDIOS_DISABLECARD; + ioctl(fd, WDIOC_SETOPTIONS, &flags); fprintf(stderr, "Watchdog card disabled.\n"); fflush(stderr); exit(0); } else if (!strncasecmp(argv[1], "-e", 2)) { - ioctl(fd, WDIOC_SETOPTIONS, WDIOS_ENABLECARD); + flags = WDIOS_ENABLECARD; + ioctl(fd, WDIOC_SETOPTIONS, &flags); fprintf(stderr, "Watchdog card enabled.\n"); fflush(stderr); exit(0); diff --git a/Documentation/watchdog/watchdog-api.txt b/Documentation/watchdog/watchdog-api.txt index 4cc4ba9d7150..eb7132ed8bbc 100644 --- a/Documentation/watchdog/watchdog-api.txt +++ b/Documentation/watchdog/watchdog-api.txt @@ -222,11 +222,10 @@ returned value is the temperature in degrees fahrenheit. ioctl(fd, WDIOC_GETTEMP, &temperature); Finally the SETOPTIONS ioctl can be used to control some aspects of -the cards operation; right now the pcwd driver is the only one -supporting this ioctl. +the cards operation. int options = 0; - ioctl(fd, WDIOC_SETOPTIONS, options); + ioctl(fd, WDIOC_SETOPTIONS, &options); The following options are available: diff --git a/MAINTAINERS b/MAINTAINERS index 3d29fa389888..5b422908d0f3 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -971,6 +971,16 @@ L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) W: http://www.mcuos.com S: Maintained +ARM/U300 MACHINE SUPPORT +M: Linus Walleij +L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) +S: Supported +F: arch/arm/mach-u300/ +F: drivers/i2c/busses/i2c-stu300.c +F: drivers/rtc/rtc-coh901331.c +F: drivers/watchdog/coh901327_wdt.c +F: drivers/dma/coh901318* + ARM/U8500 ARM ARCHITECTURE M: Srinidhi Kasagar L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) @@ -2474,12 +2484,6 @@ L: linuxppc-dev@ozlabs.org S: Odd Fixes F: drivers/char/hvc_* -VIRTIO CONSOLE DRIVER -M: Amit Shah -L: virtualization@lists.linux-foundation.org -S: Maintained -F: drivers/char/virtio_console.c - iSCSI BOOT FIRMWARE TABLE (iBFT) DRIVER M: Peter Jones M: Konrad Rzeszutek Wilk @@ -5971,6 +5975,13 @@ S: Maintained F: Documentation/filesystems/vfat.txt F: fs/fat/ +VIRTIO CONSOLE DRIVER +M: Amit Shah +L: virtualization@lists.linux-foundation.org +S: Maintained +F: drivers/char/virtio_console.c +F: include/linux/virtio_console.h + VIRTIO HOST (VHOST) M: "Michael S. Tsirkin" L: kvm@vger.kernel.org diff --git a/Makefile b/Makefile index 67c1001cfbf5..975461551531 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 34 -EXTRAVERSION = -rc3 +EXTRAVERSION = -rc4 NAME = Man-Eating Seals of Antiquity # *DOCUMENTATION* diff --git a/arch/alpha/boot/bootp.c b/arch/alpha/boot/bootp.c index 3c8d1b25c661..be61670d4096 100644 --- a/arch/alpha/boot/bootp.c +++ b/arch/alpha/boot/bootp.c @@ -8,6 +8,7 @@ * based significantly on the arch/alpha/boot/main.c of Linus Torvalds */ #include +#include #include #include #include diff --git a/arch/alpha/boot/bootpz.c b/arch/alpha/boot/bootpz.c index ade3f129dc27..c98865f21423 100644 --- a/arch/alpha/boot/bootpz.c +++ b/arch/alpha/boot/bootpz.c @@ -10,6 +10,7 @@ * and the decompression code from MILO. */ #include +#include #include #include #include diff --git a/arch/alpha/boot/main.c b/arch/alpha/boot/main.c index 644b7db55438..ded57d9a80e1 100644 --- a/arch/alpha/boot/main.c +++ b/arch/alpha/boot/main.c @@ -6,6 +6,7 @@ * This file is the bootloader for the Linux/AXP kernel */ #include +#include #include #include #include diff --git a/arch/alpha/boot/misc.c b/arch/alpha/boot/misc.c index 3047a1b3a517..3ff9a957a25c 100644 --- a/arch/alpha/boot/misc.c +++ b/arch/alpha/boot/misc.c @@ -19,6 +19,7 @@ */ #include +#include #include diff --git a/arch/alpha/kernel/irq.c b/arch/alpha/kernel/irq.c index 5f2cf23c4648..7f912ba3d9ad 100644 --- a/arch/alpha/kernel/irq.c +++ b/arch/alpha/kernel/irq.c @@ -18,7 +18,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c index 53c213f70fcb..de9d39717808 100644 --- a/arch/alpha/kernel/osf_sys.c +++ b/arch/alpha/kernel/osf_sys.c @@ -20,7 +20,6 @@ #include #include #include -#include #include #include #include @@ -37,6 +36,7 @@ #include #include #include +#include #include #include diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c index 823a540f9f5b..246100ef07c2 100644 --- a/arch/alpha/kernel/pci-noop.c +++ b/arch/alpha/kernel/pci-noop.c @@ -7,6 +7,7 @@ #include #include #include +#include #include #include #include diff --git a/arch/alpha/kernel/pci-sysfs.c b/arch/alpha/kernel/pci-sysfs.c index 6ea822e7f724..d979e7c7bc4b 100644 --- a/arch/alpha/kernel/pci-sysfs.c +++ b/arch/alpha/kernel/pci-sysfs.c @@ -10,6 +10,7 @@ */ #include +#include #include static int hose_mmap_page_range(struct pci_controller *hose, diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c index ce9e54c887fa..d1dbd9acd1df 100644 --- a/arch/alpha/kernel/pci_iommu.c +++ b/arch/alpha/kernel/pci_iommu.c @@ -5,7 +5,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c index 289039bb6bb2..395a464353b8 100644 --- a/arch/alpha/kernel/process.c +++ b/arch/alpha/kernel/process.c @@ -17,7 +17,6 @@ #include #include #include -#include #include #include #include @@ -28,6 +27,7 @@ #include #include #include +#include #include #include diff --git a/arch/alpha/kernel/ptrace.c b/arch/alpha/kernel/ptrace.c index 9acadc6b16a0..baa903602f6a 100644 --- a/arch/alpha/kernel/ptrace.c +++ b/arch/alpha/kernel/ptrace.c @@ -11,7 +11,6 @@ #include #include #include -#include #include #include diff --git a/arch/alpha/kernel/smc37c669.c b/arch/alpha/kernel/smc37c669.c index bca5bda90cde..0435921d41c6 100644 --- a/arch/alpha/kernel/smc37c669.c +++ b/arch/alpha/kernel/smc37c669.c @@ -3,7 +3,6 @@ */ #include -#include #include #include #include diff --git a/arch/alpha/kernel/smc37c93x.c b/arch/alpha/kernel/smc37c93x.c index 2636cc028d06..3e6a2893af9f 100644 --- a/arch/alpha/kernel/smc37c93x.c +++ b/arch/alpha/kernel/smc37c93x.c @@ -4,7 +4,6 @@ #include -#include #include #include #include diff --git a/arch/alpha/kernel/srm_env.c b/arch/alpha/kernel/srm_env.c index dbbf04f9230e..4afc1a1e2e5a 100644 --- a/arch/alpha/kernel/srm_env.c +++ b/arch/alpha/kernel/srm_env.c @@ -30,6 +30,7 @@ */ #include +#include #include #include #include diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c index a0902c20d677..86425ab53bf5 100644 --- a/arch/alpha/mm/init.c +++ b/arch/alpha/mm/init.c @@ -20,6 +20,7 @@ #include #include /* max_low_pfn */ #include +#include #include #include diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S index 0f23009170a1..6ab6b337a913 100644 --- a/arch/arm/boot/compressed/head.S +++ b/arch/arm/boot/compressed/head.S @@ -172,7 +172,7 @@ not_angel: adr r0, LC0 ARM( ldmia r0, {r1, r2, r3, r4, r5, r6, r11, ip, sp}) THUMB( ldmia r0, {r1, r2, r3, r4, r5, r6, r11, ip} ) - THUMB( ldr sp, [r0, #28] ) + THUMB( ldr sp, [r0, #32] ) subs r0, r0, r1 @ calculate the delta offset @ if delta is zero, we are diff --git a/arch/arm/common/clkdev.c b/arch/arm/common/clkdev.c index 6416d5b5020d..dba4c1da63ed 100644 --- a/arch/arm/common/clkdev.c +++ b/arch/arm/common/clkdev.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include diff --git a/arch/arm/common/it8152.c b/arch/arm/common/it8152.c index ee1d3b85eb65..7974baacafce 100644 --- a/arch/arm/common/it8152.c +++ b/arch/arm/common/it8152.c @@ -21,7 +21,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h index 72da7e045c6b..0d08d4170b64 100644 --- a/arch/arm/include/asm/cacheflush.h +++ b/arch/arm/include/asm/cacheflush.h @@ -15,6 +15,7 @@ #include #include #include +#include #define CACHE_COLOUR(vaddr) ((vaddr & (SHMLBA - 1)) >> PAGE_SHIFT) @@ -219,12 +220,6 @@ struct cpu_cache_fns { void (*dma_flush_range)(const void *, const void *); }; -struct outer_cache_fns { - void (*inv_range)(unsigned long, unsigned long); - void (*clean_range)(unsigned long, unsigned long); - void (*flush_range)(unsigned long, unsigned long); -}; - /* * Select the calling method */ @@ -281,37 +276,6 @@ extern void dmac_flush_range(const void *, const void *); #endif -#ifdef CONFIG_OUTER_CACHE - -extern struct outer_cache_fns outer_cache; - -static inline void outer_inv_range(unsigned long start, unsigned long end) -{ - if (outer_cache.inv_range) - outer_cache.inv_range(start, end); -} -static inline void outer_clean_range(unsigned long start, unsigned long end) -{ - if (outer_cache.clean_range) - outer_cache.clean_range(start, end); -} -static inline void outer_flush_range(unsigned long start, unsigned long end) -{ - if (outer_cache.flush_range) - outer_cache.flush_range(start, end); -} - -#else - -static inline void outer_inv_range(unsigned long start, unsigned long end) -{ } -static inline void outer_clean_range(unsigned long start, unsigned long end) -{ } -static inline void outer_flush_range(unsigned long start, unsigned long end) -{ } - -#endif - /* * Copy user data from/to a page which is mapped into a different * processes address space. Really, we want to allow our "user diff --git a/arch/arm/include/asm/clkdev.h b/arch/arm/include/asm/clkdev.h index 7a0690da5e63..b56c1389b6fa 100644 --- a/arch/arm/include/asm/clkdev.h +++ b/arch/arm/include/asm/clkdev.h @@ -13,6 +13,7 @@ #define __ASM_CLKDEV_H struct clk; +struct device; struct clk_lookup { struct list_head node; diff --git a/arch/arm/include/asm/irq.h b/arch/arm/include/asm/irq.h index 328f14a8b790..237282f7c762 100644 --- a/arch/arm/include/asm/irq.h +++ b/arch/arm/include/asm/irq.h @@ -17,6 +17,7 @@ #ifndef __ASSEMBLY__ struct irqaction; +struct pt_regs; extern void migrate_irqs(void); extern void asm_do_IRQ(unsigned int, struct pt_regs *); diff --git a/arch/arm/include/asm/outercache.h b/arch/arm/include/asm/outercache.h new file mode 100644 index 000000000000..25f76bae57ab --- /dev/null +++ b/arch/arm/include/asm/outercache.h @@ -0,0 +1,75 @@ +/* + * arch/arm/include/asm/outercache.h + * + * Copyright (C) 2010 ARM Ltd. + * Written by Catalin Marinas + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef __ASM_OUTERCACHE_H +#define __ASM_OUTERCACHE_H + +struct outer_cache_fns { + void (*inv_range)(unsigned long, unsigned long); + void (*clean_range)(unsigned long, unsigned long); + void (*flush_range)(unsigned long, unsigned long); +#ifdef CONFIG_OUTER_CACHE_SYNC + void (*sync)(void); +#endif +}; + +#ifdef CONFIG_OUTER_CACHE + +extern struct outer_cache_fns outer_cache; + +static inline void outer_inv_range(unsigned long start, unsigned long end) +{ + if (outer_cache.inv_range) + outer_cache.inv_range(start, end); +} +static inline void outer_clean_range(unsigned long start, unsigned long end) +{ + if (outer_cache.clean_range) + outer_cache.clean_range(start, end); +} +static inline void outer_flush_range(unsigned long start, unsigned long end) +{ + if (outer_cache.flush_range) + outer_cache.flush_range(start, end); +} + +#else + +static inline void outer_inv_range(unsigned long start, unsigned long end) +{ } +static inline void outer_clean_range(unsigned long start, unsigned long end) +{ } +static inline void outer_flush_range(unsigned long start, unsigned long end) +{ } + +#endif + +#ifdef CONFIG_OUTER_CACHE_SYNC +static inline void outer_sync(void) +{ + if (outer_cache.sync) + outer_cache.sync(); +} +#else +static inline void outer_sync(void) +{ } +#endif + +#endif /* __ASM_OUTERCACHE_H */ diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h index ca88e6a84707..4ace45ec3ef8 100644 --- a/arch/arm/include/asm/system.h +++ b/arch/arm/include/asm/system.h @@ -60,6 +60,8 @@ #include #include +#include + #define __exception __attribute__((section(".exception.text"))) struct thread_info; @@ -137,10 +139,12 @@ extern unsigned int user_debug; #define dmb() __asm__ __volatile__ ("" : : : "memory") #endif -#if __LINUX_ARM_ARCH__ >= 7 || defined(CONFIG_SMP) -#define mb() dmb() +#ifdef CONFIG_ARCH_HAS_BARRIERS +#include +#elif __LINUX_ARM_ARCH__ >= 7 || defined(CONFIG_SMP) +#define mb() do { dsb(); outer_sync(); } while (0) #define rmb() dmb() -#define wmb() dmb() +#define wmb() mb() #else #define mb() do { if (arch_is_coherent()) dmb(); else barrier(); } while (0) #define rmb() do { if (arch_is_coherent()) dmb(); else barrier(); } while (0) @@ -152,9 +156,9 @@ extern unsigned int user_debug; #define smp_rmb() barrier() #define smp_wmb() barrier() #else -#define smp_mb() mb() -#define smp_rmb() rmb() -#define smp_wmb() wmb() +#define smp_mb() dmb() +#define smp_rmb() dmb() +#define smp_wmb() dmb() #endif #define read_barrier_depends() do { } while(0) diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c index b7cb45bb91e8..3b3d2c80509c 100644 --- a/arch/arm/kernel/irq.c +++ b/arch/arm/kernel/irq.c @@ -27,7 +27,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/arm/kernel/kprobes.c b/arch/arm/kernel/kprobes.c index 60c62c377fa9..2ba7deb3072e 100644 --- a/arch/arm/kernel/kprobes.c +++ b/arch/arm/kernel/kprobes.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -393,6 +394,14 @@ void __kprobes jprobe_return(void) /* * Setup an empty pt_regs. Fill SP and PC fields as * they're needed by longjmp_break_handler. + * + * We allocate some slack between the original SP and start of + * our fabricated regs. To be precise we want to have worst case + * covered which is STMFD with all 16 regs so we allocate 2 * + * sizeof(struct_pt_regs)). + * + * This is to prevent any simulated instruction from writing + * over the regs when they are accessing the stack. */ "sub sp, %0, %1 \n\t" "ldr r0, ="__stringify(JPROBE_MAGIC_ADDR)"\n\t" @@ -410,7 +419,7 @@ void __kprobes jprobe_return(void) "ldmia sp, {r0 - pc} \n\t" : : "r" (kcb->jprobe_saved_regs.ARM_sp), - "I" (sizeof(struct pt_regs)), + "I" (sizeof(struct pt_regs) * 2), "J" (offsetof(struct pt_regs, ARM_sp)), "J" (offsetof(struct pt_regs, ARM_pc)), "J" (offsetof(struct pt_regs, ARM_cpsr)) diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c index f28c5e9c51ea..c628bdf6c430 100644 --- a/arch/arm/kernel/module.c +++ b/arch/arm/kernel/module.c @@ -16,9 +16,9 @@ #include #include #include -#include #include #include +#include #include #include diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index ba2adefa53f7..0e12e0acbf26 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -16,7 +16,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/arm/kernel/sys_arm.c b/arch/arm/kernel/sys_arm.c index 4350f75e578c..c23501842b98 100644 --- a/arch/arm/kernel/sys_arm.c +++ b/arch/arm/kernel/sys_arm.c @@ -15,7 +15,6 @@ #include #include #include -#include #include #include #include @@ -27,6 +26,7 @@ #include #include #include +#include /* Fork a new task - this creates a new program thread. * This is called indirectly via a small wrapper diff --git a/arch/arm/lib/memmove.S b/arch/arm/lib/memmove.S index 5025c863713d..938fc14f962d 100644 --- a/arch/arm/lib/memmove.S +++ b/arch/arm/lib/memmove.S @@ -74,7 +74,7 @@ ENTRY(memmove) rsb ip, ip, #32 addne pc, pc, ip @ C is always clear here b 7f -6: nop +6: W(nop) W(ldr) r3, [r1, #-4]! W(ldr) r4, [r1, #-4]! W(ldr) r5, [r1, #-4]! @@ -85,7 +85,7 @@ ENTRY(memmove) add pc, pc, ip nop - nop + W(nop) W(str) r3, [r0, #-4]! W(str) r4, [r0, #-4]! W(str) r5, [r0, #-4]! diff --git a/arch/arm/lib/uaccess_with_memcpy.c b/arch/arm/lib/uaccess_with_memcpy.c index 6b967ffb6552..e2d2f2cd0c4f 100644 --- a/arch/arm/lib/uaccess_with_memcpy.c +++ b/arch/arm/lib/uaccess_with_memcpy.c @@ -16,6 +16,7 @@ #include #include #include /* for in_atomic() */ +#include #include #include diff --git a/arch/arm/mach-aaec2000/core.c b/arch/arm/mach-aaec2000/core.c index b5c5fc6ba3a9..3ef68330452a 100644 --- a/arch/arm/mach-aaec2000/core.c +++ b/arch/arm/mach-aaec2000/core.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include diff --git a/arch/arm/mach-at91/pm_slowclock.S b/arch/arm/mach-at91/pm_slowclock.S index 987fab3d846a..9fcbd6ca0090 100644 --- a/arch/arm/mach-at91/pm_slowclock.S +++ b/arch/arm/mach-at91/pm_slowclock.S @@ -205,13 +205,25 @@ ENTRY(at91_slow_clock) ldr r3, .saved_pllbr str r3, [r1, #(AT91_CKGR_PLLBR - AT91_PMC)] + tst r3, #(AT91_PMC_MUL & 0xff0000) + bne 1f + tst r3, #(AT91_PMC_MUL & ~0xff0000) + beq 2f +1: wait_pllblock +2: /* Restore PLLA setting */ ldr r3, .saved_pllar str r3, [r1, #(AT91_CKGR_PLLAR - AT91_PMC)] + tst r3, #(AT91_PMC_MUL & 0xff0000) + bne 3f + tst r3, #(AT91_PMC_MUL & ~0xff0000) + beq 4f +3: wait_pllalock +4: #ifdef SLOWDOWN_MASTER_CLOCK /* diff --git a/arch/arm/mach-bcmring/dma.c b/arch/arm/mach-bcmring/dma.c index 7b20fccb9d4e..29c0a911df26 100644 --- a/arch/arm/mach-bcmring/dma.c +++ b/arch/arm/mach-bcmring/dma.c @@ -28,6 +28,7 @@ #include #include #include +#include #include @@ -2220,11 +2221,15 @@ EXPORT_SYMBOL(dma_map_create_descriptor_ring); int dma_unmap(DMA_MemMap_t *memMap, /* Stores state information about the map */ int dirtied /* non-zero if any of the pages were modified */ ) { + + int rc = 0; int regionIdx; int segmentIdx; DMA_Region_t *region; DMA_Segment_t *segment; + down(&memMap->lock); + for (regionIdx = 0; regionIdx < memMap->numRegionsUsed; regionIdx++) { region = &memMap->region[regionIdx]; @@ -2238,7 +2243,8 @@ int dma_unmap(DMA_MemMap_t *memMap, /* Stores state information about the map */ printk(KERN_ERR "%s: vmalloc'd pages are not yet supported\n", __func__); - return -EINVAL; + rc = -EINVAL; + goto out; } case DMA_MEM_TYPE_KMALLOC: @@ -2275,7 +2281,8 @@ int dma_unmap(DMA_MemMap_t *memMap, /* Stores state information about the map */ printk(KERN_ERR "%s: Unsupported memory type: %d\n", __func__, region->memType); - return -EINVAL; + rc = -EINVAL; + goto out; } } @@ -2313,9 +2320,10 @@ int dma_unmap(DMA_MemMap_t *memMap, /* Stores state information about the map */ memMap->numRegionsUsed = 0; memMap->inUse = 0; +out: up(&memMap->lock); - return 0; + return rc; } EXPORT_SYMBOL(dma_unmap); diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c index d15beceb632e..df4ab2105869 100644 --- a/arch/arm/mach-davinci/board-dm365-evm.c +++ b/arch/arm/mach-davinci/board-dm365-evm.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c index 27772e18e45b..0d6ee583f65c 100644 --- a/arch/arm/mach-davinci/dm365.c +++ b/arch/arm/mach-davinci/dm365.c @@ -758,7 +758,6 @@ static u8 dm365_default_priorities[DAVINCI_N_AINTC_IRQ] = { [IRQ_MMCINT] = 7, [IRQ_DM365_MMCINT1] = 7, [IRQ_DM365_PWMINT3] = 7, - [IRQ_DDRINT] = 4, [IRQ_AEMIFINT] = 2, [IRQ_DM365_SDIOINT1] = 2, [IRQ_TINT0_TINT12] = 7, diff --git a/arch/arm/mach-davinci/dma.c b/arch/arm/mach-davinci/dma.c index 15dd886df04c..53137387aee1 100644 --- a/arch/arm/mach-davinci/dma.c +++ b/arch/arm/mach-davinci/dma.c @@ -23,6 +23,7 @@ #include #include #include +#include #include @@ -1266,7 +1267,8 @@ int edma_start(unsigned channel) /* EDMA channel with event association */ pr_debug("EDMA: ER%d %08x\n", j, edma_shadow0_read_array(ctlr, SH_ER, j)); - /* Clear any pending error */ + /* Clear any pending event or error */ + edma_write_array(ctlr, EDMA_ECR, j, mask); edma_write_array(ctlr, EDMA_EMCR, j, mask); /* Clear any SER */ edma_shadow0_write_array(ctlr, SH_SECR, j, mask); diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h index cc9be7fee627..03acfd39042b 100644 --- a/arch/arm/mach-davinci/include/mach/da8xx.h +++ b/arch/arm/mach-davinci/include/mach/da8xx.h @@ -3,7 +3,7 @@ * * Author: Mark A. Greer * - * 2007, 2009 (c) MontaVista Software, Inc. This file is licensed under + * 2007, 2009-2010 (c) MontaVista Software, Inc. This file is licensed under * the terms of the GNU General Public License version 2. This program * is licensed "as is" without any warranty of any kind, whether express * or implied. @@ -13,7 +13,9 @@ #include