Commit Graph

31222 Commits

Author SHA1 Message Date
Martin Michlmayr
586dcf279b [ARM] Kirkwood: Add support for QNAP TS-119/TS-219 Turbo NAS
Add support for the QNAP TS-119 and TS-219 Turbo NAS devices.

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2009-03-23 16:12:38 -04:00
Nicolas Pitre
99b36e68d3 [ARM] update mach-types
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2009-03-23 16:12:37 -04:00
Martin Michlmayr
a441891f9d [ARM] Kirkwood: More consistency regarding MPP naming
With the exception of UART0, all MPP names are uppercase.

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2009-03-23 14:45:24 -04:00
Martin Michlmayr
6574e001b4 [ARM] Kirkwood: Hook up I2C
Hook up I2C on Marvell Kirkwood.  Tested on a QNAP TS-219 which has
RTC connected through I2C.

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2009-03-23 14:42:00 -04:00
Lennert Buytenhek
569106c70e [ARM] mv78xx0: Add Marvell RD-78x00-mASA Reference Design support
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Stanislav Samsonov <samsonov@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2009-03-15 22:21:25 -04:00
Nicolas Pitre
698fe13b21 [ARM] Kirkwood: update defconfig
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2009-03-15 22:09:40 -04:00
Nicolas Pitre
e96c33d9ed [ARM] Kirkwood: SheevaPlug LED support
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2009-03-15 22:09:09 -04:00
Nicolas Pitre
3ec0d47427 [ARM] Kirkwood: SheevaPlug USB Power Enable setup
Ideally, the default should be set to 0 and let the EHCI driver turn
it on as needed.  This makes USB usable in the mean time.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
2009-03-15 22:08:33 -04:00
Shadi Ammouri
4640fa606b [ARM] Kirkwood: Marvell SheevaPlug support
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2009-03-15 22:04:54 -04:00
Nicolas Pitre
d6f818f71f Merge commit '305b07680f' into orion/master 2009-03-15 21:41:23 -04:00
Russell King
305b07680f [ARM] update mach-types
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-03-12 21:33:06 +00:00
Uwe Kleine-König
446c92b290 [ARM] 5421/1: ftrace: fix crash due to tracing of __naked functions
This is a fix for the following crash observed in 2.6.29-rc3:
http://lkml.org/lkml/2009/1/29/150

On ARM it doesn't make sense to trace a naked function because then
mcount is called without stack and frame pointer being set up and there
is no chance to restore the lr register to the value before mcount was
called.

Reported-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Tested-by: Matthias Kaehlcke <matthias@kaehlcke.net>

Cc: Abhishek Sagar <sagar.abhishek@gmail.com>
Cc: Steven Rostedt <rostedt@home.goodmis.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-03-12 21:33:03 +00:00
Russell King
9311c593f2 Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6 2009-03-12 21:32:52 +00:00
Martin Michlmayr
ace14b8263 [ARM] Orion: Fix some typos in the DNS-323 support code
Fix some typos in the DNS-323 support code.

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2009-03-10 15:09:01 -04:00
Russell King
c06b4889c3 Merge branch 'omap-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 2009-03-09 09:42:15 +00:00
Russell King
74fac66e82 Merge branch 's3c-fixes' of git://aeryn.fluff.org.uk/bjdooks/linux 2009-03-06 21:53:05 +00:00
Ben Dooks
1264fa6f8c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into s3c-fixes 2009-03-06 17:13:52 +00:00
Darius Augulis
20214fcd74 MX1 fix include
Includes missed irqs.h in devices.c and mx1ads.c.

Signed-off-by: Darius Augulis <augulis.darius@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-06 17:28:10 +01:00
Hartley Sweeten
ef449e6d21 [ARM] 5419/1: ep93xx: fix build warnings about struct i2c_board_info
Fix build warnings due to struct i2c_board_info in <mach/platform.h>

Patch "5311/1: add core support for built in i2c bus" is causing 11 of
39 the build warnings with Kautobuild for ep93xx_defconfig on kernel
2.6.29-rc5-git4.  This patch fixes it.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-03-05 17:05:22 +00:00
Uwe Kleine-König
d4cc510c61 [ARM] 5418/1: restore lr before leaving mcount
gcc seems to expect that lr isn't clobbered by mcount, because for a
function starting with:

	static int func(void)
	{
		void *ra = __builtin_return_address(0);

		printk(KERN_EMERG "__builtin_return_address(0) = %pS\n", ra)

		...

the following assembler is generated by gcc 4.3.2:

	   0:   e1a0c00d        mov     ip, sp
	   4:   e92dd810        push    {r4, fp, ip, lr, pc}
	   8:   e24cb004        sub     fp, ip, #4      ; 0x4
	   c:   ebfffffe        bl      0 <mcount>
	  10:   e59f0034        ldr     r0, [pc, #52]
	  14:   e1a0100e        mov     r1, lr
	  18:   ebfffffe        bl      0 <printk>

Without this patch obviously __builtin_return_address(0) yields
func+0x10 instead of the return address of the caller.

Note this patch fixes a similar issue for the routines used with dynamic
ftrace even though this isn't currently selectable for ARM.

Cc: Abhishek Sagar <sagar.abhishek@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-03-05 13:47:15 +00:00
Russell King
843e22b056 Merge branch 'for-rmk' of git://git.marvell.com/orion 2009-03-05 09:21:18 +00:00
Alexander Clouter
195f4a170e [ARM] orion5x: added a new FPGA ID set for the TS-78xx
Stefan Agner found his board comes with 0x00b480/0x02 but the main
board also has Rev B printed on it like my 0x00b480/0x03.  Some light
enum renaming was needed but it was to be expected.

Signed-off-by: Alexander Clouter <alex@digriz.org.uk>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2009-03-04 17:07:05 -05:00
Koen Kooi
8ca7fe267f ARM: OMAP: board-omap3beagle: set i2c-3 to 100kHz
Changing it do 100kHz is needed to make more devices works properly. Controlling the
TI DLP Pico projector[1] doesn't work properly at 400kHz, 100kHz and lower work fine.
EDID readout is unaffected by this change.

[1] http://focus.ti.com/dlpdmd/docs/dlpdiscovery.tsp?sectionId=60&tabId=2234

Signed-off-by: Koen Kooi <koen@beagleboard.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-03-04 10:07:42 -08:00
Aaro Koskinen
e951651657 ARM: OMAP: Allow I2C bus driver to be compiled as a module
Fixes a linker error when OMAP I2C bus driver is compiled as a module:

   ERROR: "i2c_register_board_info" [arch/arm/plat-omap/i2c.ko] undefined!

The I2C utility functions used for board initialization should be always
built-in.

Signed-off-by: Aaro Koskinen <Aaro.Koskinen@nokia.com>
Acked-by: Jarkko Nikula  <jarkko.nikula@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-03-04 10:07:41 -08:00
Aaro Koskinen
80ea3bac3a ARM: OMAP: sched_clock() corrected
After my OMAP3 board has been running for a while, I'm seeing weird
latency traces like this:

      sh-1574    0d.h2  153us : do_timer (tick_do_update_jiffies64)
      sh-1574    0d.h2  153us : update_wall_time (do_timer)
      sh-1574    0d.h2  153us!: omap_32k_read (update_wall_time)
      sh-1574    0d.h2 1883us : update_xtime_cache (update_wall_time)
      sh-1574    0d.h2 1883us : clocksource_get_next (update_wall_time)
      sh-1574    0d.h2 1883us+: _spin_lock_irqsave (clocksource_get_next)

and after a while:

      sh-17818   0d.h3  153us : do_timer (tick_do_update_jiffies64)
      sh-17818   0d.h3  153us : update_wall_time (do_timer)
      sh-17818   0d.h3  153us!: omap_32k_read (update_wall_time)
      sh-17818   0d.h3 1915us : update_xtime_cache (update_wall_time)
      sh-17818   0d.h3 1915us+: clocksource_get_next (update_wall_time)
      sh-17818   0d.h3 1945us : _spin_lock_irqsave (clocksource_get_next)

Turns out that sched_clock() is using cyc2ns(), which returns NTP
adjusted time. The sched_clock() frequency should not be adjusted. The
patch deletes omap_32k_ticks_to_nsecs() and rewrites sched_clock()
to do the conversion using the constant multiplier.

Signed-off-by: Aaro Koskinen <Aaro.Koskinen@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-03-04 10:07:41 -08:00
David Brownell
87d99d6f7e ARM: OMAP: Fix compile error if pm.h is included
Change the error to a warning.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-03-04 10:07:40 -08:00
Tony Breeds
368a12117d powerpc: Run sbc610 USB fixup code only on the appropriate platform.
commit a969e76a71 (powerpc: Correct USB
support for GE Fanuc SBC610) introduced a fixup for NEC usb controllers.
This fixup should only run on GEF SBC610 boards.

Fixes Fedora bug #486511.
(https://bugzilla.redhat.com/show_bug.cgi?id=486511)

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-03-04 17:36:52 +11:00
Riku Voipio
6935994389 [ARM] mv78xx0: wire i2c support
All the pieces were ready, just matter of assembling
them together.

Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2009-03-03 21:06:12 -05:00
Linus Torvalds
9c1a774705 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: ixp4xx - Fix qmgr_request_queue build failure
  crypto: api - Fix module load deadlock with fallback algorithms
2009-03-03 17:05:08 -08:00
Saeed Bishara
f45964ed69 [ARM] orion5x: pass dram mbus data to xor driver
This data should be passed to the xor driver in order to initialize
the address decoding windows of the xor unit. without this patch, the
self tests of the xor will fail unless the address decoding windows were
initialized by the boot loader.

Signed-off-by: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2009-03-03 17:59:43 -05:00
Linus Torvalds
3024e4a997 Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: oprofile: don't set counter width from cpuid on Core2
  x86: fix init_memory_mapping() to handle small ranges
2009-03-03 14:32:55 -08:00
Linus Torvalds
f2a4165526 Merge branch 'tracing/mmiotrace' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing/mmiotrace' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86 mmiotrace: fix race with release_kmmio_fault_page()
  x86 mmiotrace: improve handling of secondary faults
  x86 mmiotrace: split set_page_presence()
  x86 mmiotrace: fix save/restore page table state
  x86 mmiotrace: WARN_ONCE if dis/arming a page fails
  x86: add far read test to testmmiotrace
  x86: count errors in testmmiotrace.ko
2009-03-03 14:32:37 -08:00
Linus Torvalds
f41bf2ab99 Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] fix lots of ARM __devexit sillyness
  [ARM] 5417/1: Set the correct cacheid for ARMv6 CPUs with ARMv7 style MMU
  [ARM] 5416/1: Use unused address in v6_early_abort
  [ARM] 5411/1: S3C64XX: Fix EINT unmask
  [ARM] at91: fix for Atmel AT91 powersaving
  [ARM] RiscPC: Fix etherh oops
2009-03-03 14:12:41 -08:00
Catalin Marinas
b57ee99fab [ARM] 5417/1: Set the correct cacheid for ARMv6 CPUs with ARMv7 style MMU
The cacheid_init() function assumes that if cpu_architecture() returns
7, the caches are VIPT_NONALIASING. The cpu_architecture() function
returns the version of the supported MMU features (e.g. TEX remapping)
but it doesn't make any assumptions about the cache type. The patch adds
the checking of the Cache Type Register for the ARMv7 format.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-03-03 12:11:26 +00:00
Seth Forshee
25ef4a67e7 [ARM] 5416/1: Use unused address in v6_early_abort
The target of the strex instruction to clear the exlusive monitor
is currently the top of the stack.  If the store succeeeds this
corrupts r0 in pt_regs.  Use the next stack location instead of
the current one to prevent any chance of corrupting an in-use
address.

Signed-off-by: Seth Forshee <seth.forshee@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-03-03 12:11:25 +00:00
Tim Blechmann
780eef9492 x86: oprofile: don't set counter width from cpuid on Core2
Impact: fix stuck NMIs and non-working oprofile on certain CPUs

Resetting the counter width of the performance counters on Intel's
Core2 CPUs, breaks the delivery of NMIs, when running in x86_64 mode.

This should fix bug #12395:

  http://bugzilla.kernel.org/show_bug.cgi?id=12395

Signed-off-by: Tim Blechmann <tim@klingt.org>
Signed-off-by: Robert Richter <robert.richter@amd.com>
LKML-Reference: <20090303100412.GC10085@erda.amd.com>
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-03 12:04:22 +01:00
Yinghai Lu
0fc59d3a01 x86: fix init_memory_mapping() to handle small ranges
Impact: fix failed EFI bootup in certain circumstances

Ying Huang found init_memory_mapping() has problem with small ranges
less than 2M when he tried to direct map the EFI runtime code out of
max_low_pfn_mapped.

It turns out we never considered that case and didn't check the range...

Reported-by: Ying Huang <ying.huang@intel.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Brian Maly <bmaly@redhat.com>
LKML-Reference: <49ACDDED.1060508@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-03 08:50:22 +01:00
Linus Torvalds
2d44947a56 Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  fix warning in io_mapping_map_wc()
  x86: i915 needs pgprot_writecombine() and is_io_mapping_possible()
2009-03-02 15:47:01 -08:00
Roland McGrath
5b1017404a x86-64: seccomp: fix 32/64 syscall hole
On x86-64, a 32-bit process (TIF_IA32) can switch to 64-bit mode with
ljmp, and then use the "syscall" instruction to make a 64-bit system
call.  A 64-bit process make a 32-bit system call with int $0x80.

In both these cases under CONFIG_SECCOMP=y, secure_computing() will use
the wrong system call number table.  The fix is simple: test TS_COMPAT
instead of TIF_IA32.  Here is an example exploit:

	/* test case for seccomp circumvention on x86-64

	   There are two failure modes: compile with -m64 or compile with -m32.

	   The -m64 case is the worst one, because it does "chmod 777 ." (could
	   be any chmod call).  The -m32 case demonstrates it was able to do
	   stat(), which can glean information but not harm anything directly.

	   A buggy kernel will let the test do something, print, and exit 1; a
	   fixed kernel will make it exit with SIGKILL before it does anything.
	*/

	#define _GNU_SOURCE
	#include <assert.h>
	#include <inttypes.h>
	#include <stdio.h>
	#include <linux/prctl.h>
	#include <sys/stat.h>
	#include <unistd.h>
	#include <asm/unistd.h>

	int
	main (int argc, char **argv)
	{
	  char buf[100];
	  static const char dot[] = ".";
	  long ret;
	  unsigned st[24];

	  if (prctl (PR_SET_SECCOMP, 1, 0, 0, 0) != 0)
	    perror ("prctl(PR_SET_SECCOMP) -- not compiled into kernel?");

	#ifdef __x86_64__
	  assert ((uintptr_t) dot < (1UL << 32));
	  asm ("int $0x80 # %0 <- %1(%2 %3)"
	       : "=a" (ret) : "0" (15), "b" (dot), "c" (0777));
	  ret = snprintf (buf, sizeof buf,
			  "result %ld (check mode on .!)\n", ret);
	#elif defined __i386__
	  asm (".code32\n"
	       "pushl %%cs\n"
	       "pushl $2f\n"
	       "ljmpl $0x33, $1f\n"
	       ".code64\n"
	       "1: syscall # %0 <- %1(%2 %3)\n"
	       "lretl\n"
	       ".code32\n"
	       "2:"
	       : "=a" (ret) : "0" (4), "D" (dot), "S" (&st));
	  if (ret == 0)
	    ret = snprintf (buf, sizeof buf,
			    "stat . -> st_uid=%u\n", st[7]);
	  else
	    ret = snprintf (buf, sizeof buf, "result %ld\n", ret);
	#else
	# error "not this one"
	#endif

	  write (1, buf, ret);

	  syscall (__NR_exit, 1);
	  return 2;
	}

Signed-off-by: Roland McGrath <roland@redhat.com>
[ I don't know if anybody actually uses seccomp, but it's enabled in
  at least both Fedora and SuSE kernels, so maybe somebody is. - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-02 15:41:30 -08:00
Roland McGrath
ccbe495caa x86-64: syscall-audit: fix 32/64 syscall hole
On x86-64, a 32-bit process (TIF_IA32) can switch to 64-bit mode with
ljmp, and then use the "syscall" instruction to make a 64-bit system
call.  A 64-bit process make a 32-bit system call with int $0x80.

In both these cases, audit_syscall_entry() will use the wrong system
call number table and the wrong system call argument registers.  This
could be used to circumvent a syscall audit configuration that filters
based on the syscall numbers or argument details.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-02 15:41:30 -08:00
Pekka Paalanen
340430c572 x86 mmiotrace: fix race with release_kmmio_fault_page()
There was a theoretical possibility to a race between arming a page in
post_kmmio_handler() and disarming the page in
release_kmmio_fault_page():

cpu0                             cpu1
------------------------------------------------------------------
mmiotrace shutdown
enter release_kmmio_fault_page
                                 fault on the page
                                 disarm the page
disarm the page
                                 handle the MMIO access
                                 re-arm the page
put the page on release list
remove_kmmio_fault_pages()
                                 fault on the page
                                 page not known to mmiotrace
                                 fall back to do_page_fault()
                                 *KABOOM*

(This scenario also shows the double disarm case which is allowed.)

Fixed by acquiring kmmio_lock in post_kmmio_handler() and checking
if the page is being released from mmiotrace.

Signed-off-by: Pekka Paalanen <pq@iki.fi>
Cc: Stuart Bennett <stuart@freedesktop.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-02 10:20:37 +01:00
Stuart Bennett
3e39aa156a x86 mmiotrace: improve handling of secondary faults
Upgrade some kmmio.c debug messages to warnings.
Allow secondary faults on probed pages to fall through, and only log
secondary faults that are not due to non-present pages.

Patch edited by Pekka Paalanen.

Signed-off-by: Stuart Bennett <stuart@freedesktop.org>
Signed-off-by: Pekka Paalanen <pq@iki.fi>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-02 10:20:37 +01:00
Pekka Paalanen
0b700a6a25 x86 mmiotrace: split set_page_presence()
From 36772dcb6ffbbb68254cbfc379a103acd2fbfefc Mon Sep 17 00:00:00 2001
From: Pekka Paalanen <pq@iki.fi>
Date: Sat, 28 Feb 2009 21:34:59 +0200

Split set_page_presence() in kmmio.c into two more functions set_pmd_presence()
and set_pte_presence(). Purely code reorganization, no functional changes.

Signed-off-by: Pekka Paalanen <pq@iki.fi>
Cc: Stuart Bennett <stuart@freedesktop.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-02 10:20:36 +01:00
Pekka Paalanen
5359b585fb x86 mmiotrace: fix save/restore page table state
From baa99e2b32449ec7bf147c234adfa444caecac8a Mon Sep 17 00:00:00 2001
From: Pekka Paalanen <pq@iki.fi>
Date: Sun, 22 Feb 2009 20:02:43 +0200

Blindly setting _PAGE_PRESENT in disarm_kmmio_fault_page() overlooks the
possibility, that the page was not present when it was armed.

Make arm_kmmio_fault_page() store the previous page presence in struct
kmmio_fault_page and use it on disarm.

This patch was originally written by Stuart Bennett, but Pekka Paalanen
rewrote it a little different.

Signed-off-by: Pekka Paalanen <pq@iki.fi>
Cc: Stuart Bennett <stuart@freedesktop.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-02 10:20:36 +01:00
Stuart Bennett
e9d54cae8f x86 mmiotrace: WARN_ONCE if dis/arming a page fails
Print a full warning once, if arming or disarming a page fails.

Also, if initial arming fails, do not handle the page further. This
avoids the possibility of a page failing to arm and then later claiming
to have handled any fault on that page.

WARN_ONCE added by Pekka Paalanen.

Signed-off-by: Stuart Bennett <stuart@freedesktop.org>
Signed-off-by: Pekka Paalanen <pq@iki.fi>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-02 10:20:35 +01:00
Pekka Paalanen
5ff93697fc x86: add far read test to testmmiotrace
Apparently pages far into an ioremapped region might not actually be
mapped during ioremap(). Add an optional read test to try to trigger a
multiply faulting MMIO access. Also add more messages to the kernel log
to help debugging.

This patch is based on a patch suggested by
Stuart Bennett <stuart@freedesktop.org>
who discovered bugs in mmiotrace related to normal kernel space faults.

Signed-off-by: Pekka Paalanen <pq@iki.fi>
Cc: Stuart Bennett <stuart@freedesktop.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-02 10:20:35 +01:00
Pekka Paalanen
fab852aaf7 x86: count errors in testmmiotrace.ko
Check the read values against the written values in the MMIO read/write
test. This test shows if the given MMIO test area really works as
memory, which is a prerequisite for a successful mmiotrace test.

Signed-off-by: Pekka Paalanen <pq@iki.fi>
Cc: Stuart Bennett <stuart@freedesktop.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-02 10:20:34 +01:00
Ingo Molnar
92b9af9e4f x86: i915 needs pgprot_writecombine() and is_io_mapping_possible()
Impact: build fix

Theodore Ts reported that the i915 driver needs these symbols:

 ERROR: "pgprot_writecombine" [drivers/gpu/drm/i915/i915.ko] undefined!
 ERROR: "is_io_mapping_possible" [drivers/gpu/drm/i915/i915.ko] undefined!

Reported-by: Theodore Ts'o <tytso@mit.edu> wrote:
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-28 14:22:44 +01:00
Linus Torvalds
3c4f1158cd Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (21 commits)
  USB: musb: fix srp sysfs entry deletion
  USB: musb: resume suspended root hub on disconnect
  USB: musb: use right poll limit for low speed devices
  USB: musb: be careful with 64K+ transfer lengths, host side
  USB: musb: fix data toggle saving with shared FIFO
  USB: musb: host endpoint_disable() oops fixes
  USB: musb: fix urb_dequeue() method
  USB: musb: fix musb_host_tx() for shared endpoint FIFO
  USB: musb: be careful with 64K+ transfer lengths (gadget side)
  usb: musb: make Davinci *work* in mainline
  USB: usb_get_string should check the descriptor type
  USB: gadget: fix build error in omap_apollon_2420_defconfig
  USB: g_file_storage: automatically disable stalls under Atmel
  USB: usb-storage: add IGNORE_RESIDUE flag for Genesys Logic adapters
  USB: Quirk for Hummingbird huc56s / Conexant ACM modem
  USB: serial: add support for second revision of Ericsson F3507G WWAN card
  USB: cdc-acm: add usb id for motomagx phones
  USB: option: add BenQ 3g modem information
  usb: gadget: obex: select correct ep descriptors
  USB: EHCI: slow down ITD reuse
  ...
2009-02-27 16:49:26 -08:00
Linus Torvalds
7187adbf08 Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  Revert "MIPS: Print irq handler description"
  MIPS: CVE-2009-0029: Enable syscall wrappers.
  MIPS: Alchemy: In plat_time_init() t reaches -1, tested: 0
  MIPS: Only allow Cavium OCTEON to be configured for boards that support it
2009-02-27 16:48:33 -08:00