openwrt/staging/blogic.git
14 years agodrm/radeon/kms/atom: bump atom loop timeout from 1 sec to 5 secs
Alex Deucher [Wed, 30 Jun 2010 18:58:59 +0000 (14:58 -0400)]
drm/radeon/kms/atom: bump atom loop timeout from 1 sec to 5 secs

Some tables have delays that can cause the timeout to hit
even when not intended.

Should fix:
https://bugs.freedesktop.org/show_bug.cgi?id=27744
and related bugs.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: minor driver cleanups
Alex Deucher [Wed, 30 Jun 2010 16:13:55 +0000 (12:13 -0400)]
drm/radeon/kms: minor driver cleanups

- Make the logic in r100_pll_errata_after_index() match the other
errata functions
- Use rdev->family rather than rdev->flags & RADEON_FAMILY_MASK for kms
- replace rn50 check using ids with ASIC_IS_RN50 convenience macro

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms/atom: add crtc disable function
Alex Deucher [Fri, 11 Jun 2010 21:58:38 +0000 (17:58 -0400)]
drm/radeon/kms/atom: add crtc disable function

Disables the crts as per dpms and also disables the ppll
associated with the crtc.  This should save additional power.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm: Return EBUSY if the framebuffer is unbound when flipping.
Chris Wilson [Sat, 17 Jul 2010 19:23:26 +0000 (20:23 +0100)]
drm: Return EBUSY if the framebuffer is unbound when flipping.

It looks like there is a race condition between unbinding a framebuffer
on a hotplug event and user space trying to flip:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000058
IP: [<ffffffffa008c7d3>] intel_crtc_page_flip+0xc9/0x39c [i915]
PGD 114724067 PUD 1145bd067 PMD 0
Oops: 0000 [#1] SMP
Pid: 10954, comm: X Not tainted 2.6.35-rc5_stable_20100714+ #1
P5Q-EM/P5Q-EM
RIP: 0010:[<ffffffffa008c7d3>]  [<ffffffffa008c7d3>]
intel_crtc_page_flip+0xc9/0x39c [i915]
RSP: 0018:ffff880114927cc8  EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff88012df48320 RCX: ffff88010c945600
RDX: ffff880001a109c8 RSI: ffff88010c945840 RDI: ffff88012df48320
RBP: ffff880114927d18 R08: ffff88012df48280 R09: ffff88012df48320
R10: 0000000003c2e0b0 R11: 0000000000003246 R12: ffff88010c945840
R13: ffff88012df48000 R14: 0000000000000060 R15: ffff88012dbb8000
FS:  00007f9e6078e830(0000) GS:ffff880001a00000(0000)
knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000058 CR3: 00000001177a8000 CR4: 00000000000406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process X (pid: 10954, threadinfo ffff880114926000, task
ffff88012a4a1690)
Stack:
 ffff88010c945600 ffff880115b176c0 ffff88012db10000 0000000000000246
<0> fffffff40006101c ffff88010c945600 00000000ffffffea ffff88010c945600
<0> ffff88012df48320 ffff88011b4b6780 ffff880114927d78 ffffffffa003bd0e
Call Trace:
 [<ffffffffa003bd0e>] drm_mode_page_flip_ioctl+0x1bc/0x214 [drm]
 [<ffffffffa00311fc>] drm_ioctl+0x25e/0x35e [drm]
 [<ffffffffa003bb52>] ? drm_mode_page_flip_ioctl+0x0/0x214 [drm]
 [<ffffffff810f1c3c>] vfs_ioctl+0x2a/0x9e
 [<ffffffff810f227e>] do_vfs_ioctl+0x531/0x565
 [<ffffffff810f2307>] sys_ioctl+0x55/0x77
 [<ffffffff810e56d6>] ? sys_read+0x47/0x6f
 [<ffffffff81002a2b>] system_call_fastpath+0x16/0x1b
Code: 45 d4 f4 ff ff ff 0f 84 e0 02 00 00 48 8b 4d b0 49 8d 9d 20 03 00 00 48
89 df 49 89 4c 24 38 49 8b 07 49 89 44 24 20 49 8b 47 20 <48> 8b 40 58 49 c7 04
24 00 00 00 00 49 c7 44 24 18 a9 a5 08 a0
RIP  [<ffffffffa008c7d3>] intel_crtc_page_flip+0xc9/0x39c [i915]
 RSP <ffff880114927cc8>
CR2: 0000000000000058

References:

  Bug 28811 - [page-flipping] GPU hang when modeset after unplugging
              another monitor (under compiz)
  https://bugs.freedesktop.org/show_bug.cgi?id=28811

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm: add "auto" dithering method
Ben Skeggs [Fri, 16 Jul 2010 05:09:17 +0000 (15:09 +1000)]
drm: add "auto" dithering method

There's no convenient/reliable way for drivers to both obey the dithering
mode property, and to be able to attempt to provide a good default in all
cases.

This commit adds an "auto" method to the property which drivers can default
to if they wish, whilst still allowing the user to override the choice as
they do now.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm: unify crtc,connector,encoder,fb debug printing
Jerome Glisse [Thu, 15 Jul 2010 19:43:25 +0000 (15:43 -0400)]
drm: unify crtc,connector,encoder,fb debug printing

Unify debug printing so it easier to track what's happening
while debugging.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm: disable encoder rather than dpms off in drm_crtc_prepare_encoders()
Ben Skeggs [Thu, 1 Jul 2010 06:49:57 +0000 (16:49 +1000)]
drm: disable encoder rather than dpms off in drm_crtc_prepare_encoders()

Original behaviour will be preserved for drivers that don't implement
disable() hooks for an encoder.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm: add PCI requirements to low-level drivers.
Dave Airlie [Thu, 8 Jul 2010 21:43:27 +0000 (07:43 +1000)]
drm: add PCI requirements to low-level drivers.

Now that highlevel DRM no longer requires PCI, we can move the requirement
into the lowlevel drivers.

Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoMerge branch 'drm-tracepoints' into drm-testing
Dave Airlie [Wed, 7 Jul 2010 08:38:44 +0000 (18:38 +1000)]
Merge branch 'drm-tracepoints' into drm-testing

14 years agodrm/kms: add crtc disable function
Alex Deucher [Fri, 11 Jun 2010 21:04:35 +0000 (17:04 -0400)]
drm/kms: add crtc disable function

More explicit than dpms. Same as the encoder disable function.

Need this to explicity disconnect plls from crtcs for reuse when you
plls:crtcs ratio isn't 1:1.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoMerge branch 'drm-intel-lru' into drm-testing
Dave Airlie [Wed, 7 Jul 2010 08:37:37 +0000 (18:37 +1000)]
Merge branch 'drm-intel-lru' into drm-testing

* drm-intel-lru:
  drm: implement helper functions for scanning lru list
  drm_mm: extract check_free_mm_node
  drm: sane naming for drm_mm.c
  drm: kill dead code in drm_mm.c
  drm: kill drm_mm_node->private
  drm: use list_for_each_entry in drm_mm.c

14 years agoMerge branch 'drm-platform' into drm-testing
Dave Airlie [Wed, 7 Jul 2010 08:37:35 +0000 (18:37 +1000)]
Merge branch 'drm-platform' into drm-testing

* drm-platform:
  drm: Make sure the DRM offset matches the CPU
  drm: Add __arm defines to DRM
  drm: Add support for platform devices to register as DRM devices
  drm: Remove drm_resource wrappers

14 years agoMerge tag 'v2.6.35-rc4' into drm-testing
Dave Airlie [Wed, 7 Jul 2010 08:37:34 +0000 (18:37 +1000)]
Merge tag 'v2.6.35-rc4' into drm-testing

14 years agodrm: correctly update connector DPMS status in drm_fb_helper
Jesse Barnes [Fri, 2 Jul 2010 17:48:08 +0000 (10:48 -0700)]
drm: correctly update connector DPMS status in drm_fb_helper

We don't currently update the DPMS status of the connector (both in the
connector itself and the connector's DPMS property) in the fb helper
code.  This means that if the kernel FB core has blanked the screen,
sysfs will still show a DPMS status of "on".  It also means that when X
starts, it will try to light up the connectors, but the drm_crtc_helper
code will ignore the DPMS change since according to the connector, the
DPMS status is already on.

Fixes https://bugs.freedesktop.org/show_bug.cgi?id=28436 (the annoying
"my screen was blanked when I started X and now it won't light up" bug).

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: fix shared ddc handling
Alex Deucher [Thu, 1 Jul 2010 14:34:56 +0000 (10:34 -0400)]
drm/radeon/kms: fix shared ddc handling

Connectors with a shared ddc line can be connected to different
encoders.

Reported by Pasi Kärkkäinen <pasik@iki.fi> on dri-devel

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm: implement helper functions for scanning lru list
Daniel Vetter [Fri, 2 Jul 2010 14:02:16 +0000 (15:02 +0100)]
drm: implement helper functions for scanning lru list

These helper functions can be used to efficiently scan lru list
for eviction. Eviction becomes a three stage process:
1. Scanning through the lru list until a suitable hole has been found.
2. Scan backwards to restore drm_mm consistency and find out which
   objects fall into the hole.
3. Evict the objects that fall into the hole.

These helper functions don't allocate any memory (at the price of
not allowing any other concurrent operations). Hence this can also be
used for ttm (which does lru scanning under a spinlock).

Evicting objects in this fashion should be more fair than the current
approach by i915 (scan the lru for a object large enough to contain
the new object). It's also more efficient than the current approach used
by ttm (uncoditionally evict objects from the lru until there's enough
free space).

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Thomas Hellstrom <thellstrom@vmwgfx.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm_mm: extract check_free_mm_node
Daniel Vetter [Fri, 2 Jul 2010 14:02:15 +0000 (15:02 +0100)]
drm_mm: extract check_free_mm_node

There are already two copies of this logic. And the new scanning
stuff will add some more. So extract it into a small helper
function.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Thomas Hellstrom <thellstrom@vmwgfx.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm: sane naming for drm_mm.c
Daniel Vetter [Fri, 2 Jul 2010 14:02:14 +0000 (15:02 +0100)]
drm: sane naming for drm_mm.c

Yeah, I've kinda noticed that fl_entry is the free stack. Still
give it (and the memory node list ml_entry) decent names.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Thomas Hellstrom <thellstrom@vmwgfx.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm: kill dead code in drm_mm.c
Daniel Vetter [Fri, 2 Jul 2010 14:02:13 +0000 (15:02 +0100)]
drm: kill dead code in drm_mm.c

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Thomas Hellstrom <thellstrom@vmwgfx.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm: kill drm_mm_node->private
Daniel Vetter [Fri, 2 Jul 2010 14:02:12 +0000 (15:02 +0100)]
drm: kill drm_mm_node->private

Only ever assigned, never used.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[glisse: I will re-add if needed for range-restricted allocations]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm: use list_for_each_entry in drm_mm.c
Daniel Vetter [Fri, 2 Jul 2010 14:02:11 +0000 (15:02 +0100)]
drm: use list_for_each_entry in drm_mm.c

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Thomas Hellstrom <thellstrom@vmwgfx.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/ttm: Allocate the page pool manager in the heap.
Francisco Jerez [Sun, 4 Jul 2010 02:03:07 +0000 (04:03 +0200)]
drm/ttm: Allocate the page pool manager in the heap.

Repeated ttm_page_alloc_init/fini fails noisily because the pool
manager kobj isn't zeroed out between uses (we could do just that but
statically allocated kobjects are generally considered a bad thing).
Move it to kzalloc'ed memory.

Note that this patch drops the refcounting behavior of the pool
allocator init/fini functions: it would have led to a race condition
in its current form, and anyway it was never exploited.

This fixes a regression with reloading kms modules at runtime, since
page allocator was introduced.

Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoLinux 2.6.35-rc4
Linus Torvalds [Mon, 5 Jul 2010 03:22:50 +0000 (20:22 -0700)]
Linux 2.6.35-rc4

14 years agoMerge master.kernel.org:/home/rmk/linux-2.6-arm
Linus Torvalds [Mon, 5 Jul 2010 03:21:39 +0000 (20:21 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm

* master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: 6205/1: perf: ensure counter delta is treated as unsigned
  ARM: 6202/1: Do not ARM_DMA_MEM_BUFFERABLE on RealView boards with L210/L220
  ARM: 6201/1: RealView: Do not use outer_sync() on ARM11MPCore boards with L220
  ARM: 6195/1: OMAP3: pmu: make CPU_HAS_PMU dependent on OMAP3_EMU
  ARM: 6194/1: change definition of cpu_relax() for ARM11MPCore
  ARM: 6193/1: RealView: Align the machine_desc.phys_io to 1MB section
  ARM: 6192/1: VExpress: Align the machine_desc.phys_io to 1MB section
  ARM: 6188/1: Add a config option for the ARM11MPCore DMA cache maintenance workaround
  ARM: 6187/1: The v6_dma_inv_range() function must preserve data on SMP
  ARM: 6186/1: Avoid the CONSISTENT_DMA_SIZE warning on noMMU builds
  ARM: mx3: mx31lilly: fix build error for !CONFIG_USB_ULPI
  [ARM] mmp: fix build failure due to IRQ_PMU depends on ARCH_PXA
  [ARM] pxa/mioa701: fix camera regression
  [ARM] pxa/z2: fix flash layout to final version
  [ARM] pxa/z2: fix missing include in battery driver
  [ARM] pxa: fix incorrect gpio type in udc_pxa2xx.h

14 years agoMerge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Mon, 5 Jul 2010 03:20:53 +0000 (20:20 -0700)]
Merge branch 'perf-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf, x86: Fix incorrect branches event on AMD CPUs
  perf tools: Fix find tids routine by excluding "." and ".."
  x86: Send a SIGTRAP for user icebp traps

14 years agomodule: initialize module dynamic debug later
Yehuda Sadeh [Sat, 3 Jul 2010 03:07:35 +0000 (13:07 +1000)]
module: initialize module dynamic debug later

We should initialize the module dynamic debug datastructures
only after determining that the module is not loaded yet. This
fixes a bug that introduced in 2.6.35-rc2, where when a trying
to load a module twice, we also load it's dynamic printing data
twice which causes all sorts of nasty issues. Also handle
the dynamic debug cleanup later on failure.

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (removed a #ifdef)
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoMerge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
Linus Torvalds [Mon, 5 Jul 2010 03:13:31 +0000 (20:13 -0700)]
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs

* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: remove block number from inode lookup code
  xfs: rename XFS_IGET_BULKSTAT to XFS_IGET_UNTRUSTED
  xfs: validate untrusted inode numbers during lookup
  xfs: always use iget in bulkstat
  xfs: prevent swapext from operating on write-only files

14 years agoMerge branch 'merge-devicetree' of git://git.secretlab.ca/git/linux-2.6
Linus Torvalds [Mon, 5 Jul 2010 03:12:31 +0000 (20:12 -0700)]
Merge branch 'merge-devicetree' of git://git.secretlab.ca/git/linux-2.6

* 'merge-devicetree' of git://git.secretlab.ca/git/linux-2.6:
  of/dma: fix build breakage in ppc4xx adma driver

14 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Mon, 5 Jul 2010 03:12:06 +0000 (20:12 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/mchehab/i7core

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/i7core:
  MAINTAINERS: Add an entry for i7core_edac
  i7core_edac: Avoid doing multiple probes for the same card
  i7core_edac: Properly discover the first QPI device

14 years agoMerge branch 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuil...
Linus Torvalds [Mon, 5 Jul 2010 02:55:23 +0000 (19:55 -0700)]
Merge branch 'rc-fixes' of git://git./linux/kernel/git/mmarek/kbuild-2.6

* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
  kbuild: Propagate LOCALVERSION= down to scripts/setlocalversion
  kbuild: Clean up and speed up the localversion logic

14 years agoARM: 6205/1: perf: ensure counter delta is treated as unsigned
Will Deacon [Fri, 2 Jul 2010 15:41:52 +0000 (16:41 +0100)]
ARM: 6205/1: perf: ensure counter delta is treated as unsigned

Hardware performance counters on ARM are 32-bits wide but atomic64_t
variables are used to represent counter data in the hw_perf_event structure.

The armpmu_event_update function right-shifts a signed 64-bit delta variable
and adds the result to the event count. This can lead to shifting in sign-bits
if the MSB of the 32-bit counter value is set. This results in perf output
such as:

 Performance counter stats for 'sleep 20':

 18446744073460670464  cycles             <-- 0xFFFFFFFFF12A6000
        7783773  instructions             #      0.000 IPC
            465  context-switches
            161  page-faults
        1172393  branches

   20.154242147  seconds time elapsed

This patch ensures that the delta value is treated as unsigned so that the
right shift sets the upper bits to zero.

Cc: <stable@kernel.org>
Acked-by: Jamie Iles <jamie.iles@picochip.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
14 years agoperf, x86: Fix incorrect branches event on AMD CPUs
Vince Weaver [Thu, 1 Jul 2010 19:30:16 +0000 (15:30 -0400)]
perf, x86: Fix incorrect branches event on AMD CPUs

While doing some performance counter validation tests on some
assembly language programs I noticed that the "branches:u"
count was very wrong on AMD machines.

It looks like the wrong event was selected.

Signed-off-by: Vince Weaver <vweaver1@eecs.utk.edu>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: <stable@kernel.org>
LKML-Reference: <alpine.DEB.2.00.1007011526010.23160@cl320.eecs.utk.edu>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
14 years agoof/dma: fix build breakage in ppc4xx adma driver
Dan Williams [Fri, 2 Jul 2010 21:46:17 +0000 (15:46 -0600)]
of/dma: fix build breakage in ppc4xx adma driver

Convert ppc4xx adma driver to use new node pointer location

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
14 years agoMAINTAINERS: Add an entry for i7core_edac
Mauro Carvalho Chehab [Wed, 30 Jun 2010 04:45:28 +0000 (01:45 -0300)]
MAINTAINERS: Add an entry for i7core_edac

While here, fixes the mailing list for i5400_edac

Acked-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
14 years agoi7core_edac: Avoid doing multiple probes for the same card
Mauro Carvalho Chehab [Wed, 30 Jun 2010 04:42:21 +0000 (01:42 -0300)]
i7core_edac: Avoid doing multiple probes for the same card

As Nehalem/Nehalem-EP/Westmere devices uses several devices for the same
functionality (memory controller), the default way of proping devices doesn't
work. So, instead of a per-device probe, all devices should be probed at once.

This means that we should block any new attempt of probe, otherwise, it will
try to register the same device several times.

Acked-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
14 years agoi7core_edac: Properly discover the first QPI device
Mauro Carvalho Chehab [Wed, 30 Jun 2010 04:41:35 +0000 (01:41 -0300)]
i7core_edac: Properly discover the first QPI device

On Nehalem/Nehalem-EP/Westmere, the first QPI device is the last PCI bus.
The last bus is generally at 0x3f or 0xff, but there are also other systems
using different setups. For example, HP Z800 has 0x7f as the last bus.

This patch adds a logic to discover the last bus, dynamically detecting it
at runtime.

Acked-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
14 years agoMerge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 2 Jul 2010 16:52:58 +0000 (09:52 -0700)]
Merge branch 'sched-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched: Cure nr_iowait_cpu() users
  init: Fix comment
  init, sched: Fix race between init and kthreadd

14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Linus Torvalds [Fri, 2 Jul 2010 16:52:31 +0000 (09:52 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/bp/bp

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  amd64_edac: Fix syndrome calculation on K8

14 years agoamd64_edac: Fix syndrome calculation on K8
Borislav Petkov [Fri, 2 Jul 2010 15:02:43 +0000 (17:02 +0200)]
amd64_edac: Fix syndrome calculation on K8

When calculating the DCT channel from the syndrome we need to know the
syndrome type (x4 vs x8). On F10h, this is read out from extended PCI
cfg space register F3x180 while on K8 we only support x4 syndromes and
don't have extended PCI config space anyway.

Make the code accessing F3x180 F10h only and fall back to x4 syndromes
on everything else.

Cc: <stable@kernel.org> # .33.x .34.x
Reported-by: Jeffrey Merkey <jeffmerkey@gmail.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
14 years agoMerge branch 'setlocalversion-speedup' into kbuild/rc-fixes
Michal Marek [Fri, 2 Jul 2010 09:56:52 +0000 (11:56 +0200)]
Merge branch 'setlocalversion-speedup' into kbuild/rc-fixes

Conflicts:
Makefile

14 years agoARM: 6202/1: Do not ARM_DMA_MEM_BUFFERABLE on RealView boards with L210/L220
Catalin Marinas [Thu, 1 Jul 2010 12:22:48 +0000 (13:22 +0100)]
ARM: 6202/1: Do not ARM_DMA_MEM_BUFFERABLE on RealView boards with L210/L220

RealView boards with certain revisions of the L210/L220 cache controller
may have issues (hardware deadlock) with the mandatory barriers (DSB
followed by an L2 cache sync) when ARM_DMA_MEM_BUFFERABLE is enabled.
The patch disables ARM_DMA_MEM_BUFFERABLE for these boards.

Tested-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
14 years agoARM: 6201/1: RealView: Do not use outer_sync() on ARM11MPCore boards with L220
Catalin Marinas [Thu, 1 Jul 2010 12:21:47 +0000 (13:21 +0100)]
ARM: 6201/1: RealView: Do not use outer_sync() on ARM11MPCore boards with L220

RealView boards with certain revisions of the L220 cache controller (ARM11*
processors only) may have issues (hardware deadlock) with the recent changes to
the mb() barrier implementation (DSB followed by an L2 cache sync). The patch
redefines the RealView ARM11MPCore mandatory barriers without the outer_sync()
call.

Cc: <stable@kernel.org>
Tested-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
14 years agodrm/i915: add tracepoints for flip requests & completions
Jesse Barnes [Thu, 1 Jul 2010 23:48:37 +0000 (16:48 -0700)]
drm/i915: add tracepoints for flip requests & completions

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm: add per-event vblank event trace points
Jesse Barnes [Thu, 1 Jul 2010 23:48:09 +0000 (16:48 -0700)]
drm: add per-event vblank event trace points

Allows us to track each process that requests and completes events.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm: add vblank event trace point
Jesse Barnes [Thu, 1 Jul 2010 23:47:31 +0000 (16:47 -0700)]
drm: add vblank event trace point

Emit a trace point for vblank events.  This can be helpful for mapping
drawing activity against the vblank frequency and period.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt...
Linus Torvalds [Fri, 2 Jul 2010 01:48:11 +0000 (18:48 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/anholt/drm-intel

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel:
  drm/i915: fix page flip finish vs. prepare on plane B
  drm/i915: change default panel fitting mode to preserve aspect ratio
  drm/i915: fix uninitialized variable warning in i915_setup_compression()
  drm/i915: take struct_mutex in i915_dma_cleanup()
  drm/i915: Fix CRT hotplug regression in 2.6.35-rc1
  i915: fix ironlake edp panel setup (v4)
  drm/i915: don't access FW_BLC_SELF on 965G
  drm/i915: Account for space on the ring buffer consumed whilst wrapping.
  drm/i915: gen3 page flipping fixes
  drm/i915: don't queue flips during a flip pending event
  drm/i915: Fix incorrect intel_ring_begin size in BSD ringbuffer.
  drm/i915: Turn on 945 self-refresh only if single CRTC is active
  drm/i915/gen4: Fix interrupt setup ordering
  drm/i915: Use RSEN instead of HTPLG for tfp410 monitor detection.
  drm/i915: Move non-phys cursors into the GTT
  Revert "drm/i915: Don't enable pipe/plane/VCO early (wait for DPMS on)."

(Included the "fix page flip finish vs.  prepare on plane B" patch from
Jesse on top of the pull request from Eric.   -- Linus)

14 years agodrm/i915: fix page flip finish vs. prepare on plane B
Jesse Barnes [Thu, 1 Jul 2010 11:45:43 +0000 (04:45 -0700)]
drm/i915: fix page flip finish vs. prepare on plane B

The refreshed patch had a copy & paste bug.

Reported-by: Simon Farnsworth <simon.farnsworth@onelan.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
Linus Torvalds [Fri, 2 Jul 2010 01:40:54 +0000 (18:40 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  ata_generic: implement ATA_GEN_* flags and force enable DMA on MBP 7,1
  ahci,ata_generic: let ata_generic handle new MBP w/ MCP89
  libahci: Fix bug in storing EM messages

14 years agocorrect console log level when ERST ACPI table is not found
Daniel J Blueman [Thu, 1 Jul 2010 22:27:11 +0000 (23:27 +0100)]
correct console log level when ERST ACPI table is not found

When booting 2.6.35-rc3 on a x86 system without an ERST ACPI table with
the 'quiet' option, we still observe an "ERST: Table is not found!"
warning.

Quiesce it to the same info log level as the other 'table not found'
warnings.

Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agodrm/i915: fix hibernation since i915 self-reclaim fixes
Linus Torvalds [Fri, 2 Jul 2010 00:04:42 +0000 (10:04 +1000)]
drm/i915: fix hibernation since i915 self-reclaim fixes

Since commit 4bdadb9785696439c6e2b3efe34aa76df1149c83 ("drm/i915:
Selectively enable self-reclaim"), we've been passing GFP_MOVABLE to the
i915 page allocator where we weren't before due to some over-eager
removal of the page mapping gfp_flags games the code used to play.

This caused hibernate on Intel hardware to result in a lot of memory
corruptions on resume.  See for example

  http://bugzilla.kernel.org/show_bug.cgi?id=13811

Reported-by: Evengi Golov (in bugzilla)
Signed-off-by: Dave Airlie <airlied@redhat.com>
Tested-by: M. Vefa Bicakci <bicave@superonline.com>
Cc: stable@kernel.org
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agodrm/i915: change default panel fitting mode to preserve aspect ratio
Jesse Barnes [Thu, 24 Jun 2010 18:05:10 +0000 (11:05 -0700)]
drm/i915: change default panel fitting mode to preserve aspect ratio

We did this a long time ago in the DDX driver, but now this fix belongs
in the kernel.

Preserving the aspect ratio is a nicer default.

Fixes https://bugs.freedesktop.org/show_bug.cgi?id=18033.

Tested-by: Josh Triplett <josh@freedesktop.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
14 years agodrm/i915: fix uninitialized variable warning in i915_setup_compression()
Prarit Bhargava [Thu, 27 May 2010 17:37:56 +0000 (13:37 -0400)]
drm/i915: fix uninitialized variable warning in i915_setup_compression()

Fixes:

drivers/gpu/drm/i915/i915_dma.c: In function ‘i915_setup_compression’:
drivers/gpu/drm/i915/i915_dma.c:1311: error: ‘compressed_llb’ may be used uninitialized in this function

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
14 years agodrm/i915: take struct_mutex in i915_dma_cleanup()
Dan Carpenter [Wed, 23 Jun 2010 11:19:55 +0000 (13:19 +0200)]
drm/i915: take struct_mutex in i915_dma_cleanup()

intel_cleanup_ring_buffer() calls drm_gem_object_unreference() (as
opposed to drm_gem_object_unreference_unlocked()) so it needs to be
called with "struct_mutex" held.  If we don't hold the lock, it triggers
a BUG_ON(!mutex_is_locked(&dev->struct_mutex));

I also audited the other places that call intel_cleanup_ring_buffer()
and they all hold the lock so they're OK.

This was introduced in: 8187a2b70e3 "drm/i915: introduce
intel_ring_buffer structure (V2)" and it's a regression from v2.6.34.

Addresses: https://bugzilla.kernel.org/show_bug.cgi?id=16247

Signed-off-by: Dan Carpenter <error27@gmail.com>
Reported-by: Benny Halevy <bhalevy@panasas.com>
Tested-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
14 years agodrm/i915: Fix CRT hotplug regression in 2.6.35-rc1
Andy Lutomirski [Sat, 12 Jun 2010 09:21:18 +0000 (05:21 -0400)]
drm/i915: Fix CRT hotplug regression in 2.6.35-rc1

Commit 7a772c492fcfffae812ffca78a628e76fa57fe58 has two bugs which
made the hotplug problems on my laptop worse instead of better.

First, it did not, in fact, disable the CRT plug interrupt -- it
disabled all the other hotplug interrupts.  It seems rather doubtful
that that bit of the patch fixed anything, so let's just remove it.
(If you want to add it back, you probably meant ~CRT_HOTPLUG_INT_EN.)

Second, on at least my GM45, setting CRT_HOTPLUG_ACTIVATION_PERIOD_64
and CRT_HOTPLUG_VOLTAGE_COMPARE_50 (when they were previously unset)
causes a hotplug interrupt about three seconds later.  The old code
never restored PORT_HOTPLUG_EN so this could only happen once, but
they new code restores those registers.  So just set those bits when
we set up the interrupt in the first place.

Signed-off-by: Andy Lutomirski <luto@mit.edu>
Signed-off-by: Eric Anholt <eric@anholt.net>
14 years agoi915: fix ironlake edp panel setup (v4)
Dave Airlie [Wed, 30 Jun 2010 01:46:17 +0000 (11:46 +1000)]
i915: fix ironlake edp panel setup (v4)

The eDP spec claims a 20% overhead for the 8:10 encoding scheme used
on the wire. Take this into account when picking the lane/clock speed
for the panel.

v3: some panels are out of spec, try our best to deal with them, don't
refuse modes on eDP panels, and try the largest allowed settings if
all else fails on eDP.
v4: fix stupid typo, forgot to git add before amending.

Fixes several reports in bugzilla:

      https://bugs.freedesktop.org/show_bug.cgi?id=28070

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
14 years agodrm/i915: don't access FW_BLC_SELF on 965G
Jesse Barnes [Wed, 30 Jun 2010 20:49:37 +0000 (13:49 -0700)]
drm/i915: don't access FW_BLC_SELF on 965G

The register offset for FW_BLC_SELF is a totally different set of bits
on Broadwater (it's actually MI_RDRET_STATE), so don't treat it like
FW_BLC_SELF on 965G chips.

Fixes bug https://bugs.freedesktop.org/show_bug.cgi?id=26874.

Cc: stable@kernel.org
Tested-by: Norman Yarvin <yarvin@yarchive.net>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
14 years agodrm/i915: Account for space on the ring buffer consumed whilst wrapping.
Chris Wilson [Thu, 1 Jul 2010 16:53:00 +0000 (17:53 +0100)]
drm/i915: Account for space on the ring buffer consumed whilst wrapping.

If we fill the tail of the physical ring buffer with NOOP when wrapping,
we need to account for the reduction in available space.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
14 years agoata_generic: implement ATA_GEN_* flags and force enable DMA on MBP 7,1
Tejun Heo [Tue, 22 Jun 2010 10:27:26 +0000 (12:27 +0200)]
ata_generic: implement ATA_GEN_* flags and force enable DMA on MBP 7,1

IDE mode of MCP89 on MBP 7,1 doesn't set DMA enable bits in the BMDMA
status register.  Make the following changes to work around the problem.

* Instead of using hard coded 1 in id->driver_data as class code
  match, use ATA_GEN_CLASS_MATCH and carry the matched id in
  host->private_data.

* Instead of matching PCI_VENDOR_ID_CENATEK, use ATA_GEN_FORCE_DMA
  flag in id instead.

* Add ATA_GEN_FORCE_DMA to the id entry of MBP 7,1.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Peer Chen <pchen@nvidia.com>
Cc: stable@kernel.org
Reported-by: Anders Østhus <grapz666@gmail.com>
Reported-by: Andreas Graf <andreas_graf@csgraf.de>
Reported-by: Benoit Gschwind <gschwind@gnu-log.net>
Reported-by: Damien Cassou <damien.cassou@gmail.com>
Reported-by: tixetsal@juno.com
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agoahci,ata_generic: let ata_generic handle new MBP w/ MCP89
Tejun Heo [Thu, 17 Jun 2010 09:42:22 +0000 (11:42 +0200)]
ahci,ata_generic: let ata_generic handle new MBP w/ MCP89

For yet unknown reason, MCP89 on MBP 7,1 doesn't work w/ ahci under
linux but the controller doesn't require explicit mode setting and
works fine with ata_generic.  Make ahci ignore the controller on MBP
7,1 and let ata_generic take it for now.

Reported in bko#15923.

  https://bugzilla.kernel.org/show_bug.cgi?id=15923

NVIDIA is investigating why ahci mode doesn't work.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Peer Chen <pchen@nvidia.com>
Cc: stable@kernel.org
Reported-by: Anders Østhus <grapz666@gmail.com>
Reported-by: Andreas Graf <andreas_graf@csgraf.de>
Reported-by: Benoit Gschwind <gschwind@gnu-log.net>
Reported-by: Damien Cassou <damien.cassou@gmail.com>
Reported-by: tixetsal@juno.com
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agolibahci: Fix bug in storing EM messages
Harry Zhang [Thu, 24 Jun 2010 03:34:23 +0000 (11:34 +0800)]
libahci: Fix bug in storing EM messages

In function ahci_store_em_buffer(), if the input (signed char*) buffer
contains negative data, the constructed 32-bit long message data may
be wrong.

Signed-off-by: Harry Zhang <harry.zhang@amd.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agoperf tools: Fix find tids routine by excluding "." and ".."
Gui Jianfeng [Wed, 16 Jun 2010 05:21:44 +0000 (13:21 +0800)]
perf tools: Fix find tids routine by excluding "." and ".."

Introduce a filter function to skip "." and ".." directories when calculating
tid number, otherwise tid 0 will be included in the all_tid result array.

Cc: Ingo Molnar <mingo@elte.hu>
LKML-Reference: <4C185F68.1020505@cn.fujitsu.com>
Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
14 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
Linus Torvalds [Thu, 1 Jul 2010 16:37:12 +0000 (09:37 -0700)]
Merge git://git./linux/kernel/git/wim/linux-2.6-watchdog

* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
  watchdog: docs: add an entry for imx2_wdt

14 years agoMerge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Thu, 1 Jul 2010 16:36:49 +0000 (09:36 -0700)]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6

* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (27 commits)
  drm/radeon/kms: remove rv100 bios connector quirk
  drm/radeon/kms/pm: fix power state indexing on igp chips in dynpm mode
  DRM / radeon / KMS: Fix hibernation regression related to radeon PM (was: Re: [Regression, post-2.6.34] Hibernation broken on machines with radeon/KMS and r300)
  drm/radeon/kms/igp: fix possible divide by 0 in bandwidth code (v2)
  drm/radeon: add quirk to make HP nx6125 laptop resume.
  drm/radeon/kms: add some missing regs to evergreen gpu init
  drm/radeon/kms: fix typos in evergreen command checker
  drm/radeon/kms: avoid oops on mac r4xx cards
  fb: fix colliding defines for fb flags.
  drm/radeon/kms: Force HDP_NONSURF to maximum size
  drm/radeon/kms: disable frac fb dividers for rs6xx
  drm/radeon/kms: don't read attempt to read bios from VRAM on unposted GPU.
  drm/radeon/kms: fix typo in evergreen_gpu_init
  drm/radeon/kms: return ret in cursor_set failure path
  drm/ttm: non pooled page allocation should have GFP_USER set
  drm/radeon/r100/r200: fix calculation of compressed cube maps
  drm/radeon/r200: handle more hw tex coord types
  drm/radeon/kms: CS checker texture fixes for r1xx/r2xx/r3xx
  drm/radeon: add fake RN50 table for powerpc
  drm/fb: Fix video= mode computation
  ...

14 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
Linus Torvalds [Thu, 1 Jul 2010 16:36:15 +0000 (09:36 -0700)]
Merge branch 'release' of git://git./linux/kernel/git/aegl/linux-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] Fix spinaphore down_spin()

14 years agowatchdog: docs: add an entry for imx2_wdt
Fabio Estevam [Thu, 24 Jun 2010 16:43:25 +0000 (09:43 -0700)]
watchdog: docs: add an entry for imx2_wdt

Add an entry for imx2_wdt in watchdog-parameters.txt

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
14 years agoMerge branch 'imx-for-2.6.35' of git://git.pengutronix.de/git/imx/linux-2.6
Russell King [Thu, 1 Jul 2010 10:01:33 +0000 (11:01 +0100)]
Merge branch 'imx-for-2.6.35' of git://git.pengutronix.de/git/imx/linux-2.6

14 years agoMerge branch 'fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6
Russell King [Thu, 1 Jul 2010 09:16:00 +0000 (10:16 +0100)]
Merge branch 'fix' of git://git./linux/kernel/git/ycmiao/pxa-linux-2.6

14 years agoARM: 6195/1: OMAP3: pmu: make CPU_HAS_PMU dependent on OMAP3_EMU
Will Deacon [Mon, 21 Jun 2010 14:32:54 +0000 (15:32 +0100)]
ARM: 6195/1: OMAP3: pmu: make CPU_HAS_PMU dependent on OMAP3_EMU

CPU performance event counters on v7 cores will only operate
if either the NIDEN or DBGEN signals are driven high.

For the OMAP3 platform, these signals are driven low by default
but DBGEN can be asserted by selecting the OMAP3_EMU Kconfig option,
which enables the virtual clock for hardware debugging peripherals.

Acked-by: Jean Pihet <jpihet@mvista.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
14 years agoARM: 6194/1: change definition of cpu_relax() for ARM11MPCore
Will Deacon [Mon, 21 Jun 2010 14:29:03 +0000 (15:29 +0100)]
ARM: 6194/1: change definition of cpu_relax() for ARM11MPCore

Linux expects that if a CPU modifies a memory location, then that
modification will eventually become visible to other CPUs in the system.

On an ARM11MPCore processor, loads are prioritised over stores so it is
possible for a store operation to be postponed if a polling loop immediately
follows it. If the variable being polled indirectly depends on the outstanding
store [for example, another CPU may be polling the variable that is pending
modification] then there is the potential for deadlock if interrupts are
disabled. This deadlock occurs in the KGDB testsuire when executing on an
SMP ARM11MPCore configuration.

This patch changes the definition of cpu_relax() to smp_mb() for ARMv6 cores,
forcing a flushing of the write buffer on SMP systems before the next load
takes place. If the Kernel is not compiled for SMP support, this will expand
to a barrier() as before.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
14 years agoARM: 6193/1: RealView: Align the machine_desc.phys_io to 1MB section
Catalin Marinas [Mon, 21 Jun 2010 14:12:40 +0000 (15:12 +0100)]
ARM: 6193/1: RealView: Align the machine_desc.phys_io to 1MB section

When not aligned, random bits could be written in the initial page table
by the __create_page_tables() function.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
14 years agoARM: 6192/1: VExpress: Align the machine_desc.phys_io to 1MB section
Catalin Marinas [Mon, 21 Jun 2010 14:12:09 +0000 (15:12 +0100)]
ARM: 6192/1: VExpress: Align the machine_desc.phys_io to 1MB section

When not aligned, random bits could be written in the initial page table
by the __create_page_tables() function.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
14 years agoARM: 6188/1: Add a config option for the ARM11MPCore DMA cache maintenance workaround
Catalin Marinas [Mon, 21 Jun 2010 14:10:07 +0000 (15:10 +0100)]
ARM: 6188/1: Add a config option for the ARM11MPCore DMA cache maintenance workaround

Commit f4d6477f introduced a workaround for the lack of hardware
broadcasting of the cache maintenance operations on ARM11MPCore.
However, the workaround is only valid on CPUs that do not do speculative
loads into the D-cache.

This patch adds a Kconfig option with the corresponding help to make the
above clear. When the DMA_CACHE_RWFO option is disabled, the kernel
behaviour is that prior to the f4d6477f commit. This also allows ARMv6
UP processors with speculative loads to work correctly.

For other processors, a different workaround may be needed.

Cc: Ronen Shitrit <rshitrit@marvell.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
14 years agoARM: 6187/1: The v6_dma_inv_range() function must preserve data on SMP
Catalin Marinas [Mon, 21 Jun 2010 14:09:36 +0000 (15:09 +0100)]
ARM: 6187/1: The v6_dma_inv_range() function must preserve data on SMP

A recent patch for DMA cache maintenance on ARM11MPCore added a write
for ownership trick to the v6_dma_inv_range() function. Such operation
destroys data already present in the buffer. However, this function is
used with with dma_sync_single_for_device() which is supposed to
preserve the existing data transfered into the buffer. This patch adds a
combination of read/write for ownership to preserve the original data.

Reported-by: Ronen Shitrit <rshitrit@marvell.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
14 years agoARM: 6186/1: Avoid the CONSISTENT_DMA_SIZE warning on noMMU builds
Catalin Marinas [Mon, 21 Jun 2010 14:09:06 +0000 (15:09 +0100)]
ARM: 6186/1: Avoid the CONSISTENT_DMA_SIZE warning on noMMU builds

This macro is not defined when !CONFIG_MMU so this patch moves the
CONSISTENT_* definitions to the CONFIG_MMU section.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
14 years agoARM: mx3: mx31lilly: fix build error for !CONFIG_USB_ULPI
Daniel Mack [Tue, 25 May 2010 14:46:55 +0000 (16:46 +0200)]
ARM: mx3: mx31lilly: fix build error for !CONFIG_USB_ULPI

arch/arm/mach-mx3/built-in.o: In function `mx31lilly_board_init':
mach-kzm_arm11_01.c:(.init.text+0x674): undefined reference to `otg_ulpi_create'
mach-kzm_arm11_01.c:(.init.text+0x68c): undefined reference to `otg_ulpi_create'
mach-kzm_arm11_01.c:(.init.text+0x744): undefined reference to `mxc_ulpi_access_ops'
make: *** [.tmp_vmlinux1] Error 1

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
14 years agosched: Cure nr_iowait_cpu() users
Peter Zijlstra [Thu, 1 Jul 2010 07:07:17 +0000 (09:07 +0200)]
sched: Cure nr_iowait_cpu() users

Commit 0224cf4c5e (sched: Intoduce get_cpu_iowait_time_us())
broke things by not making sure preemption was indeed disabled
by the callers of nr_iowait_cpu() which took the iowait value of
the current cpu.

This resulted in a heap of preempt warnings. Cure this by making
nr_iowait_cpu() take a cpu number and fix up the callers to pass
in the right number.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: linux-pm@lists.linux-foundation.org
LKML-Reference: <1277968037.1868.120.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
14 years agodrm/radeon/kms: remove rv100 bios connector quirk
Alex Deucher [Wed, 30 Jun 2010 17:04:08 +0000 (13:04 -0400)]
drm/radeon/kms: remove rv100 bios connector quirk

Some RV100 cards with 2 VGA ports show up with DVI+VGA, however
some boards with DVI+VGA have the same subsystem ids. Better
to have a VGA port show up as DVI than having a non-useable
DVI port.

reported by DHR in irc.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms/pm: fix power state indexing on igp chips in dynpm mode
Alex Deucher [Fri, 25 Jun 2010 20:21:27 +0000 (16:21 -0400)]
drm/radeon/kms/pm: fix power state indexing on igp chips in dynpm mode

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=28745

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Tested-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoDRM / radeon / KMS: Fix hibernation regression related to radeon PM (was: Re: [Regres...
Rafael J. Wysocki [Thu, 17 Jun 2010 23:02:27 +0000 (23:02 +0000)]
DRM / radeon / KMS: Fix hibernation regression related to radeon PM (was: Re: [Regression, post-2.6.34] Hibernation broken on machines with radeon/KMS and r300)

There is a regression from 2.6.34 related to the recent radeon power
management changes, caused by attempting to cancel a delayed work
item that's never been scheduled.  However, the code as is has some
other issues potentially leading to visible problems.

First, the mutex around cancel_delayed_work() in radeon_pm_suspend()
doesn't really serve any purpose, because cancel_delayed_work() only
tries to delete the work's timer.  Moreover, it doesn't prevent the
work handler from running, so the handler can do some wrong things if
it wins the race and in that case it will rearm itself to do some
more wrong things going forward.  So, I think it's better to wait for
the handler to return in case it's already been queued up for
execution.  Also, it should be prevented from rearming itself in that
case.

Second, in radeon_set_pm_method() the cancel_delayed_work() is not
sufficient to prevent the work handler from running and queing up
itself for the next run (the failure scenario is that
cancel_delayed_work() returns 0, so the handler is run, it waits on
the mutex and then rearms itself after the mutex has been released),
so again the work handler should be prevented from rearming itself in
that case..

Finally, there's a potential deadlock in radeon_pm_fini(), because
cancel_delayed_work_sync() is called under rdev->pm.mutex, but the
work handler tries to acquire the same mutex (if it wins the race).

Fix the issues described above.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms/igp: fix possible divide by 0 in bandwidth code (v2)
Alex Deucher [Wed, 30 Jun 2010 16:02:03 +0000 (12:02 -0400)]
drm/radeon/kms/igp: fix possible divide by 0 in bandwidth code (v2)

Some IGP systems specify the system memory clock in the Firmware
table rather than the IGP info table.  Check both and make sure
we have a value system memory clock value.

v2: make sure rs690_pm_info is called on rs780/rs880 as well.

fixes a regression since 07d4190327b02ab3aaad25a2d168f79d92e8f8c2.

Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Tested-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon: add quirk to make HP nx6125 laptop resume.
Dave Airlie [Wed, 30 Jun 2010 03:26:11 +0000 (13:26 +1000)]
drm/radeon: add quirk to make HP nx6125 laptop resume.

For some reason on resume, executing the BIOS scripts locks up the whole chipset, by avoiding the dynclk table the machine resumes properly and seems to function okay.

Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: add some missing regs to evergreen gpu init
Alex Deucher [Tue, 29 Jun 2010 21:03:35 +0000 (17:03 -0400)]
drm/radeon/kms: add some missing regs to evergreen gpu init

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: fix typos in evergreen command checker
Alex Deucher [Wed, 23 Jun 2010 22:27:11 +0000 (18:27 -0400)]
drm/radeon/kms: fix typos in evergreen command checker

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: avoid oops on mac r4xx cards
Alex Deucher [Wed, 23 Jun 2010 01:58:26 +0000 (21:58 -0400)]
drm/radeon/kms: avoid oops on mac r4xx cards

They don't have an atombios so don't attempt to use it for
eng/mem clocks.

Reported by spoonb on #radeon
fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=28671

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agofb: fix colliding defines for fb flags.
Dave Airlie [Wed, 23 Jun 2010 01:35:41 +0000 (11:35 +1000)]
fb: fix colliding defines for fb flags.

When I added the flags I must have been using a 25 line terminal and missed the following flags.

The collided with flag has one user in staging despite being in-tree for 5 years.

I'm happy to push this via my drm tree unless someone really wants to do it.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Cc: stable@kernel.org
14 years agodrm/radeon/kms: Force HDP_NONSURF to maximum size
Jerome Glisse [Thu, 3 Jun 2010 17:34:48 +0000 (19:34 +0200)]
drm/radeon/kms: Force HDP_NONSURF to maximum size

HDP non surface should cover the whole VRAM but we were misscomputing
the size and we endup in some case not covering the VRAM at all (if
VRAM size were > 1G). Covering more than the VRAM size shouldn't be
an issue.

Fix : https://bugs.freedesktop.org/show_bug.cgi?id=28016

[airlied: add evergreen fix]

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: disable frac fb dividers for rs6xx
Alex Deucher [Tue, 8 Jun 2010 23:44:36 +0000 (19:44 -0400)]
drm/radeon/kms: disable frac fb dividers for rs6xx

Should fix fdo bug 28331:
https://bugs.freedesktop.org/show_bug.cgi?id=28331

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: don't read attempt to read bios from VRAM on unposted GPU.
Dave Airlie [Mon, 21 Jun 2010 03:31:38 +0000 (13:31 +1000)]
drm/radeon/kms: don't read attempt to read bios from VRAM on unposted GPU.

Since the VGA switcheroo, we'd attempt to read the BIOS from VRAM on startup
but on some unposted cards this can cause hangs/crashes.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=28592
(further problem pointed out by agd5f on IGP systems)

Reported-by: Reilithion on #radeon
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: fix typo in evergreen_gpu_init
Alex Deucher [Wed, 16 Jun 2010 16:24:07 +0000 (12:24 -0400)]
drm/radeon/kms: fix typo in evergreen_gpu_init

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: return ret in cursor_set failure path
Matt Turner [Sat, 19 Jun 2010 18:13:45 +0000 (14:13 -0400)]
drm/radeon/kms: return ret in cursor_set failure path

We were returning 0 in both the success and failure paths. Noticed while
investigating FDO bug 26403.

Signed-off-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/ttm: non pooled page allocation should have GFP_USER set
Jerome Glisse [Wed, 16 Jun 2010 08:45:22 +0000 (10:45 +0200)]
drm/ttm: non pooled page allocation should have GFP_USER set

Non pooled page allocation should have GFP_USER set so allocation
can wait and reclaim page from other process (ie non atomic).

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/r100/r200: fix calculation of compressed cube maps
Roland Scheidegger [Sat, 12 Jun 2010 17:31:11 +0000 (13:31 -0400)]
drm/radeon/r100/r200: fix calculation of compressed cube maps

This needs similar handling to other compressed textures.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=26428

Signed-off-by: sroland@vmware.com
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/r200: handle more hw tex coord types
Roland Scheidegger [Sat, 12 Jun 2010 17:31:10 +0000 (13:31 -0400)]
drm/radeon/r200: handle more hw tex coord types

Code did not handle projected 2d and depth coordinates, meaning potentially
set 3d or cube special handling might stick.
(Not sure what depth coord actually does, but I guess handling it
like a normal coordinate is the right thing to do.)
Might be related to https://bugs.freedesktop.org/show_bug.cgi?id=26428

Signed-off-by: sroland@vmware.com
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: CS checker texture fixes for r1xx/r2xx/r3xx
Roland Scheidegger [Sat, 12 Jun 2010 16:12:37 +0000 (12:12 -0400)]
drm/radeon/kms: CS checker texture fixes for r1xx/r2xx/r3xx

fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=28459

agd5f: apply to r1xx/r2xx as well.

Signed-off-by: Roland Scheidegger <sroland@vmware.com>
Cc: stable@kernel.org
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon: add fake RN50 table for powerpc
Dave Airlie [Fri, 11 Jun 2010 05:09:05 +0000 (01:09 -0400)]
drm/radeon: add fake RN50 table for powerpc

This works well enough on a js21, but it would be nice if IBM could supply
more tables for the later Power6/7 machines.

Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/fb: Fix video= mode computation
Adam Jackson [Thu, 10 Jun 2010 17:33:26 +0000 (13:33 -0400)]
drm/fb: Fix video= mode computation

Reduced blanking is valid only when doing CVT modes.  Also, generate GTF
modes unless CVT was requested; CVT devices are required to support GTF,
but the reverse is not true.

[airlied: fix typo]

Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: fix DP after DPMS cycle
Alex Deucher [Thu, 10 Jun 2010 21:06:01 +0000 (17:06 -0400)]
drm/radeon/kms: fix DP after DPMS cycle

The transmitter needs to be enabled before the link is trained.

Reported-By: Lars Doelle <lars.doelle@on-line.de>
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: fix dpms state on resume
Cedric Godin [Fri, 11 Jun 2010 18:40:56 +0000 (14:40 -0400)]
drm/radeon/kms: fix dpms state on resume

When suspending, we turn the display hw off, at resume the screen will stay black.
This patch turn it on. Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=16180

Signed-off-by: Cedric Godin <cedric.godin@skynet.be>
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: fix bandwidth calculation when sideport is present
Alex Deucher [Sat, 12 Jun 2010 15:50:13 +0000 (11:50 -0400)]
drm/radeon/kms: fix bandwidth calculation when sideport is present

Fixes fdo bug 27529:
https://bugs.freedesktop.org/show_bug.cgi?id=27529

Reported-by: steckdenis@yahoo.fr
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6
Linus Torvalds [Wed, 30 Jun 2010 22:45:59 +0000 (15:45 -0700)]
Merge git://git./linux/kernel/git/gregkh/staging-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6:
  Staging: rtl8192u_usb: Add LG device ID 043e:7a01
  Staging: rtl8192s_usb: Remove duplicate device ID
  Staging: rt2870: add device id for Zyxel NWD-270N
  Staging: comedi: fix read past end of array in cb_pcidda_attach()
  Staging: rtl8192su: add device ids
  Staging: rtl8192su: remove device ids
  Staging: rtl8187se: Fix compile warnings in 2.6.35-rc2
  Staging: wlags49_h2: Fix build error when CONFIG_SYSFS is not set
  Staging: wlags49_h2: add missing <linux/string.h> for strlen
  Staging: hv: fix hv_utils module to properly autoload
  staging: hv: Fix race condition on vmbus channel initialization
  Staging: comedi: drivers: adl_pci9111: Fix AI commands in TRIG_FOLLOW case
  Staging: mrst-touchscreen: fix dereferencing free memory
  Staging: batman-adv: fix function prototype
  Staging: batman-adv: return -EFAULT on copy_to_user errors
  staging: usbip: usbip_common: kill rx thread on tx thread creation error.