Commit Graph

65162 Commits

Author SHA1 Message Date
Linus Torvalds 9fc005c017 Remove dead code from entry.S which causes a build failure when using
a newer assembler (v2.22 complains about it, v2.20 ignores it).
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Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming

Pull c6x bugfix from Mark Salter:
 "Remove dead code from entry.S which causes a build failure when using
  a newer assembler (v2.22 complains about it, v2.20 ignores it)."

* tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming:
  C6X: remove dead code from entry.S
2012-03-16 17:03:15 -07:00
Mark Salter 6e780cf5c0 C6X: remove dead code from entry.S
The ENDPROC() on sys_fadvise64_c6x() in arch/c6x/kernel/entry.S is
outside of the conditional block with the matching ENTRY() macro. This
leads a newer (v2.22 vs. v2.20) assembler to complain:

  /tmp/ccGZBaPT.s: Assembler messages:
  /tmp/ccGZBaPT.s: Error: .size expression for sys_fadvise64_c6x does not evaluate to a constant

The conditional block became dead code when c6x switched to generic
unistd.h and should be removed along with the offending ENDPROC().

Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: David Howells <dhowells@redhat.com>
2012-03-16 09:27:57 -04:00
Linus Torvalds cc198126c5 Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull arch/tile update to run "make minconfig" on the tile defconfigs
from Chris Metcalf.

This removes almost three thousand lines of inane defconfig chatter.

* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  arch/tile/configs: convert to minimal configs via "make savedefconfig"
2012-03-14 17:13:49 -07:00
Chris Metcalf ce06b0f550 arch/tile/configs: convert to minimal configs via "make savedefconfig"
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2012-03-14 14:33:16 -04:00
David S. Miller e0adb9902f sparc32: Add -Av8 to assembler command line.
Newer version of binutils are more strict about specifying the
correct options to enable certain classes of instructions.

The sparc32 build is done for v7 in order to support sun4c systems
which lack hardware integer multiply and divide instructions.

So we have to pass -Av8 when building the assembler routines that
use these instructions and get patched into the kernel when we find
out that we have a v8 capable cpu.

Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-13 18:19:51 -07:00
Linus Torvalds 69539ab100 Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull arch/tile update from Chris Metcalf
 "These include a couple of queued-up minor bug fixes from the
  community, a fix to unbreak the sysfs hooks in tile, and syncing up
  the defconfigs."

Ugh.  defconfigs updates without "make minconfig".  Tons of ugly
pointless lines there, I suspect.

* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  tile: Use set_current_blocked() and block_sigmask()
  arch/tile: misplaced parens near likely
  arch/tile: sync up the defconfig files to the tip
  arch/tile: Fix up from commit 8a25a2fd12
2012-03-13 17:06:02 -07:00
Linus Torvalds 0a49aecaf4 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar.

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf record: Fix buffer overrun bug in tracepoint_id_to_path()
  perf/x86: Fix local vs remote memory events for NHM/WSM
2012-03-13 17:04:50 -07:00
Matt Fleming ad09233835 tile: Use set_current_blocked() and block_sigmask()
As described in e6fa16ab ("signal: sigprocmask() should do
retarget_shared_pending()") the modification of current->blocked is
incorrect as we need to check whether the signal we're about to block
is pending in the shared queue.

Also, use the new helper function introduced in commit 5e6292c0f2
("signal: add block_sigmask() for adding sigmask to current->blocked")
which centralises the code for updating current->blocked after
successfully delivering a signal and reduces the amount of duplicate
code across architectures. In the past some architectures got this
code wrong, so using this helper function should stop that from
happening again.

Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2012-03-13 16:42:05 -04:00
Linus Torvalds 212ad2f5f9 SuperH fixes for 3.3-rc.
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Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh

Pull SuperH fixes from Paul Mundt.

* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh:
  sh-sci / PM: Avoid deadlocking runtime PM
  sh: fix up the ubc clock definition for sh7785.
  sh: add parameter for RSPI in clock-sh7757
  sh: Fix sh2a vbr table for more than 255 irqs
2012-03-12 22:50:20 -07:00
Linus Torvalds a10a854365 SH/R-Mobile fixes for 3.3-rc.
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Merge tag 'rmobile-for-linus' of git://github.com/pmundt/linux-sh

Pull SH/R-Mobile fixes from Paul Mundt.

* tag 'rmobile-for-linus' of git://github.com/pmundt/linux-sh:
  ARM: mach-shmobile: ap4evb: fixup fsi2_ak4643_info typo
  ARM: mach-shmobile: mackerel: Reserve DMA memory for the frame buffer
  ARM: mach-shmobile: Fix ag5evm compilation by including linux/videodev2.h
  ARM: mach-shmobile: Fix bonito compile breakage
2012-03-12 22:47:20 -07:00
Peter Zijlstra 87e24f4b67 perf/x86: Fix local vs remote memory events for NHM/WSM
Verified using the below proglet.. before:

[root@westmere ~]# perf stat -e node-stores -e node-store-misses ./numa 0
remote write

 Performance counter stats for './numa 0':

         2,101,554 node-stores
         2,096,931 node-store-misses

       5.021546079 seconds time elapsed

[root@westmere ~]# perf stat -e node-stores -e node-store-misses ./numa 1
local write

 Performance counter stats for './numa 1':

           501,137 node-stores
               199 node-store-misses

       5.124451068 seconds time elapsed

After:

[root@westmere ~]# perf stat -e node-stores -e node-store-misses ./numa 0
remote write

 Performance counter stats for './numa 0':

         2,107,516 node-stores
         2,097,187 node-store-misses

       5.012755149 seconds time elapsed

[root@westmere ~]# perf stat -e node-stores -e node-store-misses ./numa 1
local write

 Performance counter stats for './numa 1':

         2,063,355 node-stores
               165 node-store-misses

       5.082091494 seconds time elapsed

#define _GNU_SOURCE

#include <sched.h>
#include <stdio.h>
#include <errno.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <dirent.h>
#include <signal.h>
#include <unistd.h>
#include <numaif.h>
#include <stdlib.h>

#define SIZE (32*1024*1024)

volatile int done;

void sig_done(int sig)
{
	done = 1;
}

int main(int argc, char **argv)
{
	cpu_set_t *mask, *mask2;
	size_t size;
	int i, err, t;
	int nrcpus = 1024;
	char *mem;
	unsigned long nodemask = 0x01; /* node 0 */
	DIR *node;
	struct dirent *de;
	int read = 0;
	int local = 0;

	if (argc < 2) {
		printf("usage: %s [0-3]\n", argv[0]);
		printf("  bit0 - local/remote\n");
		printf("  bit1 - read/write\n");
		exit(0);
	}

	switch (atoi(argv[1])) {
	case 0:
		printf("remote write\n");
		break;
	case 1:
		printf("local write\n");
		local = 1;
		break;
	case 2:
		printf("remote read\n");
		read = 1;
		break;
	case 3:
		printf("local read\n");
		local = 1;
		read = 1;
		break;
	}

	mask = CPU_ALLOC(nrcpus);
	size = CPU_ALLOC_SIZE(nrcpus);
	CPU_ZERO_S(size, mask);

	node = opendir("/sys/devices/system/node/node0/");
	if (!node)
		perror("opendir");
	while ((de = readdir(node))) {
		int cpu;

		if (sscanf(de->d_name, "cpu%d", &cpu) == 1)
			CPU_SET_S(cpu, size, mask);
	}
	closedir(node);

	mask2 = CPU_ALLOC(nrcpus);
	CPU_ZERO_S(size, mask2);
	for (i = 0; i < size; i++)
		CPU_SET_S(i, size, mask2);
	CPU_XOR_S(size, mask2, mask2, mask); // invert

	if (!local)
		mask = mask2;

	err = sched_setaffinity(0, size, mask);
	if (err)
		perror("sched_setaffinity");

	mem = mmap(0, SIZE, PROT_READ|PROT_WRITE,
			MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
	err = mbind(mem, SIZE, MPOL_BIND, &nodemask, 8*sizeof(nodemask), MPOL_MF_MOVE);
	if (err)
		perror("mbind");

	signal(SIGALRM, sig_done);
	alarm(5);

	if (!read) {
		while (!done) {
			for (i = 0; i < SIZE; i++)
				mem[i] = 0x01;
		}
	} else {
		while (!done) {
			for (i = 0; i < SIZE; i++)
				t += *(volatile char *)(mem + i);
		}
	}

	return 0;
}

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Cc: <stable@kernel.org>
Link: http://lkml.kernel.org/n/tip-tq73sxus35xmqpojf7ootxgs@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-03-12 20:43:41 +01:00
roel cf8c1dafe1 arch/tile: misplaced parens near likely
Parentheses were missing.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2012-03-12 15:32:18 -04:00
Chris Metcalf 7ed725cf5d arch/tile: sync up the defconfig files to the tip
This was inspired by mchehab@redhat.com's observation that we
didn't have EDAC configured on by default in both files.  In addition,
we were setting INITRAMFS_SOURCE to a non-empty string, which isn't
a very common default and required editing to do test builds.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2012-03-12 15:32:12 -04:00
Chris Metcalf 688b4db0d9 arch/tile: Fix up from commit 8a25a2fd12
This was Kay Siever's bombing to convert 'cpu' to a regular subsystem.
The change left a bogus second argument to sysfs_create_file().

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2012-03-12 15:31:37 -04:00
Thomas Gleixner a7f4255f90 x86: Derandom delay_tsc for 64 bit
Commit f0fbf0abc0 ("x86: integrate delay functions") converted
delay_tsc() into a random delay generator for 64 bit.  The reason is
that it merged the mostly identical versions of delay_32.c and
delay_64.c.  Though the subtle difference of the result was:

 static void delay_tsc(unsigned long loops)
 {
-	unsigned bclock, now;
+	unsigned long bclock, now;

Now the function uses rdtscl() which returns the lower 32bit of the
TSC. On 32bit that's not problematic as unsigned long is 32bit. On 64
bit this fails when the lower 32bit are close to wrap around when
bclock is read, because the following check

       if ((now - bclock) >= loops)
       	  	break;

evaluated to true on 64bit for e.g. bclock = 0xffffffff and now = 0
because the unsigned long (now - bclock) of these values results in
0xffffffff00000001 which is definitely larger than the loops
value. That explains Tvortkos observation:

"Because I am seeing udelay(500) (_occasionally_) being short, and
 that by delaying for some duration between 0us (yep) and 491us."

Make those variables explicitely u32 again, so this works for both 32
and 64 bit.

Reported-by: Tvrtko Ursulin <tvrtko.ursulin@onelan.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org # >= 2.6.27
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-09 12:43:27 -08:00
Linus Torvalds 0ab5d757db Fix for C6X KSTK_EIP and KSTK_ESP macros.
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Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming

Pull C6X fix from Mark Salter:
 "Fix for C6X KSTK_EIP and KSTK_ESP macros."

* tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming:
  C6X: fix KSTK_EIP and KSTK_ESP macros
2012-03-09 07:27:38 -08:00
Linus Torvalds 0cacaf51a0 IOMMU fixes for Linux v3.3-rc6
Two fixes are queued up. The first is an additional fix for the OMAP
 initialization order issue and the second patch fixes a possible section
 mismatch which can lead to a kernel crash in the AMD IOMMU driver when
 suspend/resume is used and the compiler has not inlined the
 iommu_set_device_table function.
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Merge tag 'iommu-fixes-v3.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull two IOMMU fixes from Joerg Roedel:
 "The first is an additional fix for the OMAP initialization order issue
  and the second patch fixes a possible section mismatch which can lead
  to a kernel crash in the AMD IOMMU driver when suspend/resume is used
  and the compiler has not inlined the iommu_set_device_table function."

* tag 'iommu-fixes-v3.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  x86/amd: iommu_set_device_table() must not be __init
  ARM: OMAP: fix iommu, not mailbox
2012-03-09 07:26:25 -08:00
Linus Torvalds 9f8050c4f9 Last minute fixes for 3.3
One samsung build fix due to a mis-applied patch, and a small set of OMAP fixes.
 This should be the last from arm-soc for 3.3, hopefully.
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Merge tag 'fixes-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull last minute fixes from Olof Johansson:
 "One samsung build fix due to a mis-applied patch, and a small set of
  OMAP fixes.  This should be the last from arm-soc for 3.3, hopefully."

* tag 'fixes-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: S3C2440: Fixed build error for s3c244x
  ARM: OMAP2+: Fix module build errors with CONFIG_OMAP4_ERRATA_I688
  ARM: OMAP: id: Add missing break statement in omap3xxx_check_revision
  ARM: OMAP2+: Remove apply_uV constraints for fixed regulator
  ARM: OMAP: irqs: Fix NR_IRQS value to handle PRCM interrupts
2012-03-08 17:32:42 -08:00
Linus Torvalds ee0849c911 Minor bug fixes and documentation updates for v3.3-rc5
Fixes up a duplicate #include, adds an empty implementation of
 of_find_compatible_node() and make git ignore .dtb files.  And fix
 up bus name on OF described PHYs.  Nothing exciting here.
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Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6

Pull minor devicetree bug fixes and documentation updates from Grant Likely:
 "Fixes up a duplicate #include, adds an empty implementation of
  of_find_compatible_node() and make git ignore .dtb files.  And fix up
  bus name on OF described PHYs.  Nothing exciting here."

* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  doc: dt: Fix broken reference in gpio-leds documentation
  of/mdio: fix fixed link bus name
  of/fdt.c: asm/setup.h included twice
  of: add picochip vendor prefix
  dt: add empty of_find_compatible_node function
  ARM: devicetree: Add .dtb files to arch/arm/boot/.gitignore
2012-03-08 17:24:27 -08:00
Olof Johansson c66fcfa938 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Fix module build errors with CONFIG_OMAP4_ERRATA_I688
  ARM: OMAP: id: Add missing break statement in omap3xxx_check_revision
  ARM: OMAP2+: Remove apply_uV constraints for fixed regulator
  ARM: OMAP: irqs: Fix NR_IRQS value to handle PRCM interrupts
2012-03-08 10:56:12 -08:00
Kukjin Kim 48546cc0a5 ARM: S3C2440: Fixed build error for s3c244x
Fixed following:
arch/arm/mach-s3c2440/s3c244x.c: In function 's3c244x_restart':
arch/arm/mach-s3c2440/s3c244x.c:209: error: expected declaration or statement at end of input
make[1]: *** [arch/arm/mach-s3c24xx/s3c244x.o] Error 1
make: *** [arch/arm/mach-s3c24xx] Error 2

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2012-03-08 08:57:29 -08:00
Linus Torvalds 4f262acfde Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM updates from Russell King.

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7358/1: perf: add PMU hotplug notifier
  ARM: 7357/1: perf: fix overflow handling for xscale2 PMUs
  ARM: 7356/1: perf: check that we have an event in the PMU IRQ handlers
  ARM: 7355/1: perf: clear overflow flag when disabling counter on ARMv7 PMU
  ARM: 7354/1: perf: limit sample_period to half max_period in non-sampling mode
  ARM: ecard: ensure fake vma vm_flags is setup
  ARM: 7346/1: errata: fix PL310 erratum #753970 workaround selection
  ARM: 7345/1: errata: update workaround for A9 erratum #743622
  ARM: 7348/1: arm/spear600: fix one-shot timer
  ARM: 7339/1: amba/serial.h: Include types.h for resolving dependency of type bool
2012-03-07 08:33:03 -08:00
Mark Salter 4cd7c0a03e C6X: fix KSTK_EIP and KSTK_ESP macros
There was a latent typo in the C6X KSTK_EIP and KSTK_ESP macros which
caused a problem with a new patch which used them. The broken definitions
were of the form:

  #define KSTK_FOO(tsk) (task_pt_regs(task)->foo)

Note the use of task vs tsk. This actually worked before because the
only place in the kernel which used these macros passed in a local
pointer named task.

Signed-off-by: Mark Salter <msalter@redhat.com>
2012-03-07 11:28:22 -05:00
Lorenzo Pieralisi a0feb6db0f ARM: 7358/1: perf: add PMU hotplug notifier
When a CPU is taken out of reset, either cold booted or hotplugged in,
some of its PMU registers can contain UNKNOWN values.

This patch adds a hotplug notifier to ARM core perf code so that upon
CPU restart the PMU unit is reset and becomes ready to use again.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-07 09:40:50 +00:00
Will Deacon 3f31ae1213 ARM: 7357/1: perf: fix overflow handling for xscale2 PMUs
xscale2 PMUs indicate overflow not via the PMU control register, but by
a separate overflow FLAG register instead.

This patch fixes the xscale2 PMU code to use this register to detect
to overflow and ensures that we clear any pending overflow when
disabling a counter.

Cc: <stable@vger.kernel.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-07 09:40:49 +00:00
Will Deacon f6f5a30c83 ARM: 7356/1: perf: check that we have an event in the PMU IRQ handlers
The PMU IRQ handlers in perf assume that if a counter has overflowed
then perf must be responsible. In the paranoid world of crazy hardware,
this could be false, so check that we do have a valid event before
attempting to dereference NULL in the interrupt path.

Cc: <stable@vger.kernel.org>
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-07 09:40:49 +00:00
Will Deacon 99c1745b9c ARM: 7355/1: perf: clear overflow flag when disabling counter on ARMv7 PMU
When disabling a counter on an ARMv7 PMU, we should also clear the
overflow flag in case an overflow occurred whilst stopping the counter.
This prevents a spurious overflow being picked up later and leading to
either false accounting or a NULL dereference.

Cc: <stable@vger.kernel.org>
Reported-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-07 09:40:49 +00:00
Will Deacon 5727347180 ARM: 7354/1: perf: limit sample_period to half max_period in non-sampling mode
On ARM, the PMU does not stop counting after an overflow and therefore
IRQ latency affects the new counter value read by the kernel. This is
significant for non-sampling runs where it is possible for the new value
to overtake the previous one, causing the delta to be out by up to
max_period events.

Commit a737823d ("ARM: 6835/1: perf: ensure overflows aren't missed due
to IRQ latency") attempted to fix this problem by allowing interrupt
handlers to pass an overflow flag to the event update function, causing
the overflow calculation to assume that the counter passed through zero
when going from prev to new. Unfortunately, this doesn't work when
overflow occurs on the perf_task_tick path because we have the flag
cleared and end up computing a large negative delta.

This patch removes the overflow flag from armpmu_event_update and
instead limits the sample_period to half of the max_period for
non-sampling profiling runs.

Cc: <stable@vger.kernel.org>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-07 09:40:48 +00:00
Kuninori Morimoto e49d603c18 ARM: mach-shmobile: ap4evb: fixup fsi2_ak4643_info typo
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-03-07 17:04:29 +09:00
Laurent Pinchart 1740d34480 ARM: mach-shmobile: mackerel: Reserve DMA memory for the frame buffer
The default 2MB size of DMA coherent memory isn't enough for allocate
frame buffer memory.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-03-07 17:04:29 +09:00
Laurent Pinchart e9db93a471 ARM: mach-shmobile: Fix ag5evm compilation by including linux/videodev2.h
The board file uses a 4CC defined in linux/videodev2.h. Include the
header to fix

arch/arm/mach-shmobile/board-ag5evm.c:262: error: 'V4L2_PIX_FMT_RGB565'
undeclared here (not in a function)

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-03-07 17:04:28 +09:00
Phil Edworthy 63d71126bc ARM: mach-shmobile: Fix bonito compile breakage
arch/arm/mach-shmobile/board-bonito.c:244:3: error: unknown field 'bpp' specified in initializer
make[2]: *** [arch/arm/mach-shmobile/board-bonito.o] Error 1

caused by commit "fbdev: sh_mobile_lcdc: Support FOURCC-based format API"

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-03-07 17:03:43 +09:00
Thomas Schwinge 948c46a195 sh: fix up the ubc clock definition for sh7785.
Presently the SH7785 code misdefines the UBC clock connection ID in
relation to the other CPUs. This makes it uniform, so that things like
single-stepping work again.

Signed-off-by: Thomas Schwinge <thomas@codesourcery.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-03-07 15:28:32 +09:00
Shimoda, Yoshihiro fb4340656f sh: add parameter for RSPI in clock-sh7757
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-03-07 15:26:04 +09:00
Phil Edworthy de3a49b8a4 sh: Fix sh2a vbr table for more than 255 irqs
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-03-07 15:26:03 +09:00
Linus Torvalds 55062d0617 x86: fix typo in recent find_vma_prev purge
It turns out that test-compiling this file on x86-64 doesn't really
help, because much of it is x86-32-specific.  And so I hadn't noticed
the slightly over-eager removal of the 'r' from 'addr' variable despite
thinking I had tested it.

Signed-off-by: Linus "oopsie" Torvalds <torvalds@linux-foundation.org>
2012-03-06 18:48:13 -08:00
Linus Torvalds 097d59106a vm: avoid using find_vma_prev() unnecessarily
Several users of "find_vma_prev()" were not in fact interested in the
previous vma if there was no primary vma to be found either.  And in
those cases, we're much better off just using the regular "find_vma()",
and then "prev" can be looked up by just checking vma->vm_prev.

The find_vma_prev() semantics are fairly subtle (see Mikulas' recent
commit 83cd904d271b: "mm: fix find_vma_prev"), and the whole "return
prev by reference" means that it generates worse code too.

Thus this "let's avoid using this inconvenient and clearly too subtle
interface when we don't really have to" patch.

Cc: Mikulas Patocka <mpatocka@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-06 18:23:36 -08:00
Linus Torvalds 917ec63b61 arm-soc fixes for v3.3-rc7
These fix mostly regressions on exynos, at91, pxa and ep93xx.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'fixes-3.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc bug fixes from Arnd Bergmann:
 "Here are all the fixes I got after sending the last pull request.
  These fix mostly regressions on exynos, at91, pxa and ep93xx.

  Signed-off-by: Arnd Bergmann <arnd@arndb.de>"

* tag 'fixes-3.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: ep93xx: convert vision_ep9307 to MULTI_IRQ_HANDLER
  ARM: EXYNOS: fix touchscreen IRQ setup on Universal C210 board
  ARM: pxa: fix invalid mfp pin issue
  ARM: pxa: remove duplicated registeration on pxa-gpio
  ARM: pxa: add dummy clock for pxa25x and pxa27x
  ARM: S3C24XX: DMA resume regression fix
  ARM: S3C24XX: Fix restart on S3C2442
  ARM: SAMSUNG: Fix memory size for hsotg
  ARM: at91/dma: DMA controller registering with DT support
  ARM: at91/dma: remove platform data from DMA controller
2012-03-06 09:10:31 -08:00
Arnd Bergmann 6b60805502 Merge branch 'fixes' of git://github.com/hzhuang1/linux into fixes
* 'fixes' of git://github.com/hzhuang1/linux: (3 commits)
  ARM: pxa: fix invalid mfp pin issue
  ARM: pxa: remove duplicated registeration on pxa-gpio
  ARM: pxa: add dummy clock for pxa25x and pxa27x

Includes an update to v3.3-rc6
2012-03-06 16:12:26 +00:00
Arnd Bergmann 4c75aab698 Merge branch 'v3.3-samsung-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
* 'v3.3-samsung-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: EXYNOS: fix touchscreen IRQ setup on Universal C210 board
  ARM: S3C24XX: DMA resume regression fix
  ARM: S3C24XX: Fix restart on S3C2442
  ARM: SAMSUNG: Fix memory size for hsotg
2012-03-06 16:11:56 +00:00
H Hartley Sweeten 1dbd02ec38 ARM: ep93xx: convert vision_ep9307 to MULTI_IRQ_HANDLER
As done for the other ep93xx machines in:

commit 9a6879bd90
ARM: ep93xx: convert to MULTI_IRQ_HANDLER

Now that there is a generic IRQ handler for multiple VIC devices use it
for vision_ep9307 to help building multi platform kernels.

Signed-off-by: Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Ryan Mallon <rmallon@gmail.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-03-06 15:57:56 +00:00
Bartlomiej Zolnierkiewicz 63f32b3893 ARM: EXYNOS: fix touchscreen IRQ setup on Universal C210 board
Fixes atmel_mxt_ts freeze on Universal C210.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-03-06 02:25:15 -08:00
Haojian Zhuang af829310e8 ARM: pxa: fix invalid mfp pin issue
Failure is reported on hx4700 with kernel v3.3-rc1.

__mfp_validate: GPIO20 is invalid pin
__mfp_validate: GPIO21 is invalid pin
__mfp_validate: GPIO15 is invalid pin
__mfp_validate: GPIO78 is invalid pin
__mfp_validate: GPIO79 is invalid pin
__mfp_validate: GPIO80 is invalid pin
__mfp_validate: GPIO33 is invalid pin
__mfp_validate: GPIO48 is invalid pin
__mfp_validate: GPIO49 is invalid pin
__mfp_validate: GPIO50 is invalid pin

Since pxa_last_gpio is used in mfp-pxa2xx driver. But it's only
updated in pxa-gpio driver that run after mfp-pxa2xx driver.

So update the pxa_last_gpio first in mfp-pxa2xx driver.

Reported-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
2012-03-06 14:57:16 +08:00
Haojian Zhuang 0c7de34be3 ARM: pxa: remove duplicated registeration on pxa-gpio
Both reboot (via reboot(RB_AUTOBOOT)) and suspend freeze on hx4700.

Registration of pxa_gpio_syscore_ops is moved into pxa-gpio driver,
but it still exists in arch-pxa directory. It resulsts failure on
reboot and suspend.

Now remove the registration code in arch-pxa.

Reported-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
2012-03-06 14:40:59 +08:00
Haojian Zhuang bbdc818b27 ARM: pxa: add dummy clock for pxa25x and pxa27x
gpio-pxa driver is shared among arch-pxa and arch-mmp. Clock is the
essential component on pxa3xx/pxa95x and arch-mmp. So we need to
define dummy clock in pxa25x/pxa27x instead.

This regression was introduced by the commit "ARM: pxa: add dummy
clock for sa1100-rtc", id a55b5adaf4.

Reported-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Paul Parsons <lost.distance@yahoo.com>
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
2012-03-06 14:24:59 +08:00
Linus Torvalds 3e85fb9cd4 Merge branch 'akpm' (Andrew's patch bomb)
Merge the emailed seties of 19 patches from Andrew Morton

* akpm:
  rapidio/tsi721: fix queue wrapping bug in inbound doorbell handler
  memcg: fix mapcount check in move charge code for anonymous page
  mm: thp: fix BUG on mm->nr_ptes
  alpha: fix 32/64-bit bug in futex support
  memcg: fix GPF when cgroup removal races with last exit
  debugobjects: Fix selftest for static warnings
  floppy/scsi: fix setting of BIO flags
  memcg: fix deadlock by inverting lrucare nesting
  drivers/rtc/rtc-r9701.c: fix crash in r9701_remove()
  c2port: class_create() returns an ERR_PTR
  pps: class_create() returns an ERR_PTR, not NULL
  hung_task: fix the broken rcu_lock_break() logic
  vfork: kill PF_STARTING
  coredump_wait: don't call complete_vfork_done()
  vfork: make it killable
  vfork: introduce complete_vfork_done()
  aio: wake up waiters when freeing unused kiocbs
  kprobes: return proper error code from register_kprobe()
  kmsg_dump: don't run on non-error paths by default
2012-03-05 15:50:25 -08:00
Andrew Morton 62aca40365 alpha: fix 32/64-bit bug in futex support
Michael Cree said:

: : I have noticed some user space problems (pulseaudio crashes in pthread
: : code, glibc/nptl test suite failures, java compiler freezes on SMP alpha
: : systems) that arise when using a 2.6.39 or later kernel on Alpha.
: : Bisecting between 2.6.38 and 2.6.39 (using glibc/nptl test suite as
: : criterion for good/bad kernel) eventually leads to:
: :
: : 8d7718aa08 is the first bad commit
: : commit 8d7718aa08
: : Author: Michel Lespinasse <walken@google.com>
: : Date:   Thu Mar 10 18:50:58 2011 -0800
: :
: :     futex: Sanitize futex ops argument types
: :
: :     Change futex_atomic_op_inuser and futex_atomic_cmpxchg_inatomic
: :     prototypes to use u32 types for the futex as this is the data type the
: :     futex core code uses all over the place.
: :
: : Looking at the commit I see there is a change of the uaddr argument in
: : the Alpha architecture specific code for futexes from int to u32, but I
: : don't see why this should cause a problem.

Richard Henderson said:

: futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
:                               u32 oldval, u32 newval)
: ...
:         :       "r"(uaddr), "r"((long)oldval), "r"(newval)
:
:
: There is no 32-bit compare instruction.  These are implemented by
: consistently extending the values to a 64-bit type.  Since the
: load instruction sign-extends, we want to sign-extend the other
: quantity as well (despite the fact it's logically unsigned).
:
: So:
:
: -        :       "r"(uaddr), "r"((long)oldval), "r"(newval)
: +        :       "r"(uaddr), "r"((long)(int)oldval), "r"(newval)
:
: should do the trick.

Michael said:

: This fixes the glibc test suite failures and the pulseaudio related
: crashes, but it does not fix the java compiiler lockups that I was (and
: are still) observing.  That is some other problem.

Reported-by: Michael Cree <mcree@orcon.net.nz>
Tested-by: Michael Cree <mcree@orcon.net.nz>
Acked-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Michel Lespinasse <walken@google.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-05 15:49:43 -08:00
Russell King 81caaf2503 ARM: ecard: ensure fake vma vm_flags is setup
Our TLB ops want to check the vma vm_flags to find out whether the
mapping is executable.  However, we leave this uninitialized in
ecard.c.  Initialize it with an appropriate value.

Reported-by: Al Viro <viro@ftp.linux.org.uk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-05 23:29:51 +00:00
Linus Torvalds 4f0449e26f Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci
Pull PCI fixes from Jesse Barnes:
 "A couple of fixes for booting specific machines, and one for a minor
  memory leak on pre-_CRS platforms."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci:
  x86/PCI: do not tie MSI MS-7253 use_crs quirk to BIOS version
  x86/PCI: use host bridge _CRS info on MSI MS-7253
  PCI: fix memleak when ACPI _CRS is not used.
2012-03-05 14:30:12 -08:00
Linus Torvalds 3a81a6e780 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS fixes from Ralf Baechle:
 "What's in there: a number of MIPS fixes and touchups.  The most
  important change in this pull request is Kautuk Consul's port of
  changes to do_page_fault which fix a hang that affects some
  configurations.  Still not quite ready for a release, there are
  problems with 64-bit platforms."

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: traps.c: Fix typo
  MIPS: PowerTV: Fix defconfigs for coverage builds
  MIPS: Netlogic: Fix defconfigs for coverage builds
  MIPS: ATH79: Avoid a kernel bug on AR913X
  MIPS: PCI: use list_for_each_entry() for bus->devices traversal
  MIPS: fault.c: Port OOM changes to do_page_fault
  MIPS: vmlinux.lds.S: remove duplicate _sdata symbol
  MIPS: Alchemy: Increase minimum timeout for 32kHz timer.
  MIPS: txx9 7segled fix struct device has no member
  MIPS: Alchemy: Update Au1300 inlined GPIO macros
  MIPS: Remove temporary kludge from <asm/page.h>
  MIPS: BMIPS: smp-bmips.c does not need to include version.h
2012-03-05 14:27:34 -08:00