Jani Nikula [Fri, 24 Aug 2012 06:42:44 +0000 (09:42 +0300)]
gma500: remove references to drm_display_info raw_edid field
Another reference to raw_edid field of struct drm_display_info was added in
gma500 while the whole field was being removed, causing build
failure. Remove the hopefully last references to raw_edid.
Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Dave Airlie <airlied@gmail.com>
Sachin Kamat [Wed, 1 Aug 2012 11:45:32 +0000 (17:15 +0530)]
drm: Add misssing static storage class specifier in drm_fb_helper.c file
Fixes the following sparse warning:
drivers/gpu/drm/drm_fb_helper.c:239:6: warning:
symbol 'drm_fb_helper_force_kernel_mode' was not declared. Should it be static?
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
Sachin Kamat [Wed, 1 Aug 2012 11:45:31 +0000 (17:15 +0530)]
drm: Add missing static storage class specifier in drm_irq.c file
Fixes the following sparse warning:
drivers/gpu/drm/drm_irq.c:1239:6:
warning: symbol 'drm_handle_vblank_events' was not declared. Should it be static?
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
Mark Brown [Tue, 7 Aug 2012 11:14:14 +0000 (11:14 +0000)]
drm/i2c/ch7006: Convert to dev_pm_ops
The I2C specific suspend and resume functions have been deprecated and
printing a warning on boot for over a year, dev_pm_ops should be used
instead so convert to that.
Also remove the suspend function since all it does is log.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
Sachin Kamat [Fri, 10 Aug 2012 05:30:25 +0000 (05:30 +0000)]
drm/usb: select USB_SUPPORT in Kconfig
DRM_USB selects USB. However, USB depends on USB_SUPPORT and USB_ARCH_HAS_HCD.
Thus, selecting USB_SUPPORT in Kconfig avoids the following warning
(detected when DisplayLink was selected using exynos4_defconfig):
Forest Bond [Mon, 13 Aug 2012 16:29:04 +0000 (16:29 +0000)]
gma500: psb_intel_crtc: Drop crtc_enable flag.
This is set when setting DPMS on and off, but it isn't checked anywhere,
so just remove it.
Signed-off-by: Forest Bond <forest.bond@rapidrollout.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Forest Bond [Mon, 13 Aug 2012 16:27:09 +0000 (16:27 +0000)]
gma500: Fix comment mispelling in cdv_intel_limits definition.
Signed-off-by: Forest Bond <forest.bond@rapidrollout.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Jani Nikula [Wed, 15 Aug 2012 09:32:39 +0000 (09:32 +0000)]
drm: remove the raw_edid field from struct drm_display_info
Neither the drm core nor any of the drivers really need the raw_edid field
of struct drm_display_info for anything. Instead of being useful, it
creates confusion about who is responsible for freeing the memory it points
to and setting the field to NULL afterwards, leading to memory leaks and
dangling pointers.
Remove the raw_edid field, and fix drivers as necessary.
Reported-by: Russell King <linux@arm.linux.org.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Alan Cox [Wed, 22 Aug 2012 12:00:28 +0000 (12:00 +0000)]
gma500/cdv: Fix call to cdv_intel_dp_set_m_n
We should be making this call not praying that the values are right.
In addition as noted by Josiah Standing we should be calling this
for eDP as well.
Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Zhao Yakui [Wed, 8 Aug 2012 13:57:01 +0000 (13:57 +0000)]
gma500: Disable the clock gating of display controller to make DP/eDP work well
I don't know why the DP/eDP is affected by the clock gating. But the test
shows that it really fixes the DP/eDP clock issue during enabling DP/eDP.
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
[Updated to only apply the workaround if the device has DP. We don't want
to do this on netbooks] Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Zhao Yakui [Wed, 8 Aug 2012 13:55:55 +0000 (13:55 +0000)]
gma500/cdv: Add eDP support
Introduce the eDP support into the driver.
This has been reworked a bit because kernel driver proper uses encoder/connectors
while the legacy Intel driver uses the old output stuff.
It also diverges on the backlight handling. The legacy Intel driver adds a panel
abstraction based upon the i915 one. It's only really used for backlight bits
and we have a perfectly good backlight abstraction which can extend instead.
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
[ported to upstream driver, redid backlight abstraction] Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Zhao Yakui [Wed, 8 Aug 2012 13:53:48 +0000 (13:53 +0000)]
gma500: Program the DPLL lane based on the selected digitial port
Based on the spec, the CRT output doesn't use the lane. And the HDMI B output
uses the Lane0/1 while the HDMI C output uses the Lane 2/3. But currently
it will program all the four lanes for the CRT/HDMI.
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
[Ported to the in-kernel driver] Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Zhao Yakui [Wed, 8 Aug 2012 13:53:15 +0000 (13:53 +0000)]
gma500: Fix incorrect SR issue when disabling CRTC already in disabled state
Currently when trying to call the DPMS off again for one CRTC with DPMS off,
it will firstly disable the SR and can't enable it again because of the
incorrect check/logic. In such case the self refresh is still disabled
although one CRTC pipe is active. This is wrong.
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
[Ported to in kernel driver] Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Thu, 23 Aug 2012 05:12:44 +0000 (15:12 +1000)]
Merge branch 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel into drm-next
Daniel writes:
" First -next pull for 3.7. Highlights:
- hsw hdmi improvements (Paulo)
- ips/rps locking rework and cleanups
- rc6 on ilk by default again
- hw context&dp&dpff support for hsw (Ben)
- GET_PARAM_HAS_SEMAPHORES (Chris)
- gen6+ pipe_control improvements (Chris)
- set_cacheing ioctl and assorted support code (Chris)
- cleanups around the busy/idle/pm code (Chris&me)
- flushing_list removal, hopefully for good (Chris)
- read_reg ioctl (Ben)
- support the ns2501 dvo (Thomas Richter)
- avoid the costly gen6+ "missed IRQ" workaround where we don't need a
race-free seqno readback (Chris)
- various bits&pieces, mostly early patches from the modeset rework branch"
* 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel: (54 commits)
drm/i915: don't grab dev->struct_mutex for userspace forcewak
drm/i915: try harder to find WR PLL clock settings
drm/i915: use the correct encoder type when comparing
drm/i915: Lazily apply the SNB+ seqno w/a
drm/i915: enable rc6 on ilk again
drm/i915: fix up ilk drps/ips locking
drm/i915: DE_PCU_EVENT irq is ilk-only
drm/i915: kill dev_priv->mchdev_lock
drm/i915: move all rps state into dev_priv->rps
drm/i915: use mutex_lock_interruptible for debugfs files
drm/i915: fixup up debugfs rps state handling
drm/i915: properly guard ilk ips state
drm/i915: add parentheses around PIXCLK_GATE definitions
drm/i915: reindent Haswell register definitions
drm/i915: completely reset the value of DDI_FUNC_CTL
drm/i915: correctly set the DDI_FUNC_CTL bpc field
drm/i915: set the DDI sync polarity bits
drm/i915: fix pipe DDI mode select
drm/i915: dump the device info
drm/i915: fixup desired rps frequency computation
...
Daniel Vetter [Fri, 17 Aug 2012 06:57:56 +0000 (08:57 +0200)]
Merge tag 'v3.6-rc2' into drm-intel-next
Backmerge Linux 3.6-rc2 to resolve a few funny conflicts before we put
even more madness on top:
- drivers/gpu/drm/i915/i915_irq.c: Just a spurious WARN removed in
-fixes, that has been changed in a variable-rename in -next, too.
- drivers/gpu/drm/i915/intel_ringbuffer.c: -next remove scratch_addr
(since all their users have been extracted in another fucntion),
-fixes added another user for a hw workaroudn.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Ian Kent [Mon, 6 Aug 2012 01:37:47 +0000 (09:37 +0800)]
autofs4 - fix get_next_positive_subdir()
Following a report of a crash during an automount expire I found that
the locking in fs/autofs4/expire.c:get_next_positive_subdir() was wrong.
Not only is the locking wrong but the function is more complex than it
needs to be.
The function is meant to calculate (and dget) the next entry in the list
of directories contained in the root of an autofs mount point (an autofs
indirect mount to be precise). The main problem was that the d_lock of
the owner of the list was not being taken when walking the list, which
lead to list corruption under load. The only other lock that needs to
be taken is against the next dentry candidate so it can be checked for
usability.
Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 16 Aug 2012 18:47:42 +0000 (11:47 -0700)]
Merge tag 'vfio-for-v3.6-rc1' of git://github.com/awilliam/linux-vfio
Pull VFIO fix from Alex Williamson:
"Just a trivial patch to include vfio.h in the installed headers so we
can complete userspace integration into QEMU."
* tag 'vfio-for-v3.6-rc1' of git://github.com/awilliam/linux-vfio:
vfio: Include vfio.h in installed headers
Linus Torvalds [Thu, 16 Aug 2012 18:31:59 +0000 (11:31 -0700)]
Merge tag 'stable/for-linus-3.6-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
Pull Xen fix from Konrad Rzeszutek Wilk:
"Way back in v3.5 we added a mechanism to populate back pages that were
released (they overlapped with MMIO regions), but neglected to reserve
the proper amount of virtual space for extend_brk to work properly.
Coincidentally some other commit aligned the _brk space to larger area
so I didn't trigger this until it was run on a machine with more than
2GB of MMIO space."
* On machines with large MMIO/PCI E820 spaces we fail to boot b/c
we failed to pre-allocate large enough virtual space for extend_brk.
* tag 'stable/for-linus-3.6-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/p2m: Reserve 8MB of _brk space for P2M leafs when populating back.
Linus Torvalds [Thu, 16 Aug 2012 18:13:16 +0000 (11:13 -0700)]
Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Pull two slave-dmaengine fixes from Vinod Koul:
"One fixes the correct use of clock API in imx driver and the other
enables clock for tegra driver, which is used for other tegra driver
conversion to dmanegine in -next."
* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
dma: tegra: enable/disable dma clock
dma: imx-dma: Fix kernel crash due to missing clock conversion
Linus Torvalds [Thu, 16 Aug 2012 18:08:32 +0000 (11:08 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull more drm fixes from Dave Airlie:
"Just some intel and nouveau ones this time, intel has more edp panel
fixes for macbooks and nouveau has a suspend/resume regression fix in
there."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/i915: Apply post-sync write for pipe control invalidates
drm/i915: reorder edp disabling to fix ivb MacBook Air
drm/nv86/fifo: suspend fix
drm/nouveau: disable copy engine on NVAF
nouveau: fixup scanout enable in nvc0_pm
drm/nouveau/aux: mask off higher bits of auxch index in i2c table entry
drm/nvd0/disp: mask off high 16 bit of negative cursor x-coordinate
drm/i915: ensure i2c adapter is all set before adding it
drm/i915: ignore eDP bpc settings from vbt
drm/i915: Fix blank panel at reopening lid
drm/nve0/fifo: add support for the flip completion swmthd
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Be less verbose during vmemmap population.
sparc64: do not clobber personality flags in sys_sparc64_personality()
Dave Airlie [Wed, 15 Aug 2012 10:31:22 +0000 (20:31 +1000)]
Merge branch 'drm-nouveau-fixes' of git://git.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes
* 'drm-nouveau-fixes' of git://git.freedesktop.org/git/nouveau/linux-2.6:
drm/nv86/fifo: suspend fix
drm/nouveau: disable copy engine on NVAF
nouveau: fixup scanout enable in nvc0_pm
drm/nouveau/aux: mask off higher bits of auxch index in i2c table entry
drm/nvd0/disp: mask off high 16 bit of negative cursor x-coordinate
drm/nve0/fifo: add support for the flip completion swmthd
Dave Airlie [Wed, 15 Aug 2012 10:27:51 +0000 (20:27 +1000)]
Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes
Daniel Vetter writes:
"A few important fixers:
- fix various lvds backlight issues, regressed in 3.6 (Takashi Iwai)
- make the retina mbp work (ignore bogus edp bpc value in vbt)
- fix a gmbus regression introduced in (iirc) 3.4 (Jani Nikula)
- fix an edp panel power sequence regression, fixes the new macbook air
- apply the tlb invalidate w/a
Otherwise we still have another gmbus regression (patches are awaiting
tested-bys) and there's something odd going with some rare systems not
entering rc6 often enough (and hence blowing through too much power). It
seems to be a timing-related issue and can be mitigated by frobbing the
magic tuning parameters. We're still working on that one. Also, we still
have some fallout from the hw context support, but you can only hit that
with mesa master."
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: Apply post-sync write for pipe control invalidates
drm/i915: reorder edp disabling to fix ivb MacBook Air
drm/i915: ensure i2c adapter is all set before adding it
drm/i915: ignore eDP bpc settings from vbt
drm/i915: Fix blank panel at reopening lid
David S. Miller [Wed, 15 Aug 2012 07:37:29 +0000 (00:37 -0700)]
sparc64: Be less verbose during vmemmap population.
On a 2-node machine with 256GB of ram we get 512 lines of
console output, which is just too much.
This mimicks Yinghai Lu's x86 commit c2b91e2eec9678dbda274e906cc32ea8f711da3b
(x86_64/mm: check and print vmemmap allocation continuous) except that
we aren't ever going to get contiguous block pointers in between calls
so just print when the virtual address or node changes.
This decreases the output by an order of 16.
Also demote this to KERN_DEBUG.
Signed-off-by: David S. Miller <davem@davemloft.net>
drm/i915: Only apply the SNB pipe control w/a to gen6
Note: Manually switch the pipe_control cmd to 4 dwords to avoid a
(silent) functional conflict with -next. This way will get a loud (but
conflict with next (since the scratch_addr has been deleted there).
Reported-and-tested-by: yex.tian@intel.com
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=53322 Acked-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: added note about merge conflict with -next.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drm/i915: enable vdd when switching off the eDP panel
But that patch also tried to fix some neat edp sequence issue with the
force_vdd timings. Closer inspection reveals that we've raised
force_vdd only to do the aux channel communication dp_sink_dpms. If we
move the edp_panel_off below that, we don't need any force_vdd for the
disable sequence, which makes the Air happy.
Unfortunately the reporter of the original bug that the above commit
fixed is travelling, so we can't test whether this regresses things.
But my theory is that since we don't check for any power-off ->
force_vdd-on delays in edp_panel_vdd_on, this was the actual
root-cause of this failure. With that force_vdd dance completely
eliminated, I'm hopeful the original bug stays fixed, too.
For reference the old bug, which hopefully doesn't get broken by this:
https://bugzilla.kernel.org/show_bug.cgi?id=43163
In any case, regression fixers win over plain bugfixes, so this needs
to go in asap.
v2: The crucial pieces seems to be to clear the force_vdd flag
uncoditionally, too, in edp_panel_off. Looks like this is left behind
by the firmware somehow.
v3: The Apple firmware seems to switch off the panel on it's own, hence
we still need to keep force_vdd on, but properly clear it when switching
the panel off.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=45671 Tested-by: Roberto Romer <sildurin@gmail.com> Tested-by: Daniel Wagner <wagi@monom.org> Tested-by: Keith Packard <keithp@keithp.com> Cc: stable@vger.kernel.org Cc: Keith Packard <keithp@keithp.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Linus Torvalds [Tue, 14 Aug 2012 04:58:59 +0000 (07:58 +0300)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 patches from Martin Schwidefsky:
"Included are bug fixes and a patch to enable system call filtering
with BPF."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/compat: fix mmap compat system calls
s390/compat: fix compat wrappers for process_vm system calls
s390: do not clobber personality flags in sys_32_personality()
s390/seccomp: add support for system call filtering using BPF
s390/sclp_sdias: Add missing break and "fall through"
s390/mm: remove MAX_PHYSADDR_BITS define
Linus Torvalds [Tue, 14 Aug 2012 04:52:41 +0000 (07:52 +0300)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Radeon and intel fixes mostly, one fix to the mgag200 driver to not
hang on certain server variants."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (32 commits)
drm/radeon: fix typo in function header comment
drm/radeon/kms: implement timestamp userspace query (v2)
drm/radeon/kms: add MSAA texture support for r600-evergreen
drm/radeon/kms: reorder code in r600_check_texture_resource
drm/radeon: fence virtual address and free it once idle v4
drm/radeon: fix some missing parens in asic macros
drm/radeon: add some new SI pci ids
drm/radeon: fix ordering in pll picking on dce4+
drm/radeon: do not reenable crtc after moving vram start address
drm/radeon: fix bank tiling parameters on cayman
drm/radeon: fix bank tiling parameters on evergreen
drm/radeon: fix bank tiling parameters on SI
drm/radeon: properly handle crtc powergating
drm/radeon: properly handle SS overrides on TN (v2)
drm/radeon/dce4+: set a more reasonable cursor watermark
drm/radeon: fix handling for ddc type 5 on combios
drm/mgag200: fix G200ER pll picking algorithm
drm/edid: Fix potential memory leak in edid_load()
drm/udl: Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(.. [1]
drm/radeon/kms: allow "invalid" DB formats as a means to disable DB
...
Arnd Bergmann [Mon, 13 Aug 2012 14:36:10 +0000 (14:36 +0000)]
GPIO: gpio-pxa: fix building without CONFIG_OF
Commit 7212157267 ("GPIO: gpio-pxa: fix devicetree functions") added an
"xlate" function pointer to the irq_domain_ops, but this function is nor
declared or defined anywhere when CONFIG_OF is disabled, causing the
build error:
drivers/gpio/gpio-pxa.c:532:11: error: 'irq_domain_xlate_twocell' undeclared here (not in a function)
Extending the DT-only code section to cover the irq_domain_ops and the
pxa_gpio_dt_ids solves this problem and makes it clearer which code is
actually used without DT.
Ben Skeggs [Fri, 27 Jul 2012 04:18:03 +0000 (14:18 +1000)]
drm/nouveau/aux: mask off higher bits of auxch index in i2c table entry
At least partially fixes DP output detection on W530. Not sure if more
issues remain, or if my adaptor is just behaving weirdly (it does that
sometimes).
Dave Airlie [Mon, 13 Aug 2012 23:25:01 +0000 (09:25 +1000)]
Merge branch 'drm-fixes-3.6' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Alex Deucher writes:
This is the current set of radeon fixes for 3.6. Nothing too major.
Highlights:
- various display fixes
- some SI fixes
- new SI pci ids
- major VM fix
- CS checker support for MSAA
I've tested on a number of cards across generations and noticed no problems.
* 'drm-fixes-3.6' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: fix typo in function header comment
drm/radeon/kms: implement timestamp userspace query (v2)
drm/radeon/kms: add MSAA texture support for r600-evergreen
drm/radeon/kms: reorder code in r600_check_texture_resource
drm/radeon: fence virtual address and free it once idle v4
drm/radeon: fix some missing parens in asic macros
drm/radeon: add some new SI pci ids
drm/radeon: fix ordering in pll picking on dce4+
drm/radeon: do not reenable crtc after moving vram start address
drm/radeon: fix bank tiling parameters on cayman
drm/radeon: fix bank tiling parameters on evergreen
drm/radeon: fix bank tiling parameters on SI
drm/radeon: properly handle crtc powergating
drm/radeon: properly handle SS overrides on TN (v2)
drm/radeon/dce4+: set a more reasonable cursor watermark
drm/radeon: fix handling for ddc type 5 on combios
Jani Nikula [Mon, 13 Aug 2012 14:33:02 +0000 (17:33 +0300)]
drm/i915: ensure i2c adapter is all set before adding it
i2c_add_adapter() may do i2c transfers on the bus to detect supported
devices. Therefore the adapter needs to be all set before adding it. This
was not the case for the bit-banging fallback, resulting in an oops if the
device detection GMBUS transfers timed out. Fix the issue by calling
i2c_add_adapter() only after intel_gpio_setup().
LKML-Reference: <5021F00B.7000503@ionic.de> Tested-by: Mihai Moldovan <ionic@ionic.de> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jerome Glisse [Mon, 6 Aug 2012 16:32:21 +0000 (12:32 -0400)]
drm/radeon: fence virtual address and free it once idle v4
Virtual address need to be fenced to know when we can safely remove it.
This patch also properly clear the pagetable. Previously it was
serouisly broken.
Kernel 3.5/3.4 need a similar patch but adapted for difference in mutex locking.
v2: For to update pagetable when unbinding bo (don't bailout if
bo_va->valid is true).
v3: Add kernel 3.5/3.4 comment.
v4: Fix compilation warnings.
Signed-off-by: Jerome Glisse <jglisse@redhat.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
drm/radeon: do not reenable crtc after moving vram start address
It seems we can not update the crtc scanout address. After disabling
crtc, update to base address do not take effect after crtc being
reenable leading to at least frame being scanout from the old crtc
base address. Disabling crtc display request lead to same behavior.
So after changing the vram address if we don't keep crtc disabled
we will have the GPU trying to read some random system memory address
with some iommu this will broke the crtc engine and will lead to
broken display and iommu error message.
So to avoid this, disable crtc. For flicker less boot we will need
to avoid moving the vram start address.
Alex Deucher [Thu, 26 Jul 2012 17:38:52 +0000 (13:38 -0400)]
drm/radeon: properly handle crtc powergating
Need to make sure the crtc is gated on before modesetting.
Explicitly gate the crtc on in prepare() and set a flag
so that the dpms functions don't gate it off during
mode set.
Noticed by sylware on IRC.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
Arnd Bergmann [Wed, 8 Aug 2012 21:27:58 +0000 (05:27 +0800)]
leds: renesas: fix error handling
bfe4c041 "leds: convert Renesas TPU LED driver to devm_kzalloc() and
cleanup error exit path" introduced a possible case in which r_tpu_probe
calls iounmap on a wild pointer. This changes the one case that was
missed in the same way as the other error paths.
Without this patch, building kota2_defconfig results in:
drivers/leds/leds-renesas-tpu.c: In function 'r_tpu_probe':
drivers/leds/leds-renesas-tpu.c:246:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
drivers/leds/leds-renesas-tpu.c:308:17: warning: 'p' may be used uninitialized in this function [-Wuninitialized]
Pull networking changes from David Miller:
"Most importantly this should cure the ipv4-mapped ipv6 socket TCP
crashes some people were seeing, otherwise:
1) Fix e1000e autonegotiation handling regression, from Tushar Dave.
2) Fix TX data corruption race on e1000e down, also from Tushar Dave.
3) Fix bfin_sir IRDA driver build, from Sonic Zhang.
4) AF_PACKET mmap() tests a flag in the TX ring shared between
userspace and the kernel for an internal consistency check. It
really shouldn't do this to validate the kernel's own behavior
because the user can corrupt it to be any value at all. From
Daniel Borkmann.
5) Fix TCP metrics leak on netns dismantle, from Eric Dumazet.
6) Orphan the anonymous TCP socket from the SKB in
ip_send_unicast_reply() so that the rest of the stack needn't see
it. Otherwise we get selinux problems of all sorts, from Eric
Dumazet.
This is the best way to fix this since the socket is just a place
holder for sending packets in a context where we have no real
socket at all.
7) Fix TUN detach crashes, from Stanislav Kinsbursky.
8) dev_set_alias() leaks memory on krealloc() failure, from Alexey
Khoroshilov.
9) FIB trie must use call_rcu() not call_rcu_bh(), because this code
is not universally invoked from software interrupts. From Eric
Dumazet.
10) PPTP looks up ipv4 routes with the wrong network namespace, fix
from Gao Feng."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (33 commits)
bnx2x: Fix compiler warnings
af_packet: remove BUG statement in tpacket_destruct_skb
macvtap: rcu_dereference outside read-lock section
codel: refine one condition to avoid a nul rec_inv_sqrt
ixgbe: add missing braces
ipv4: fix ip_send_skb()
net: tcp: ipv6_mapped needs sk_rx_dst_set method
ipv4: tcp: unicast_sock should not land outside of TCP stack
bnx2x: Fix recovery flow cleanup during probe
bnx2x: fix unload previous driver flow when flr-capable
tun: don't zeroize sock->file on detach
igb: Fix register defines for all non-82575 hardware
e1000e: fix panic while dumping packets on Tx hang with IOMMU
igb: fix panic while dumping packets on Tx hang with IOMMU
tcp: must free metrics at net dismantle
net/stmmac: mark probe function as __devinit
lpc_eth: remove obsolete ifdefs
net/core: Fix potential memory leak in dev_set_alias()
cdc-phonet: Don't leak in usbpn_open
batman-adv: Fix mem leak in the batadv_tt_local_event() function
...
Linus Torvalds [Mon, 13 Aug 2012 05:40:51 +0000 (08:40 +0300)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull tcm_vhost level target fabric driver from Nicholas Bellinger:
"Here is the PULL request for the initial merge of tcm_vhost based on
RFC-v5 code with MST's ACK appended to the initial merge commit."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
tcm_vhost: Initial merge for vhost level target fabric driver
Joren Van Onder [Sat, 11 Aug 2012 17:10:35 +0000 (17:10 +0000)]
bnx2x: Fix compiler warnings
Fix the following compiler warnings:
- drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c:2908:3: warning: comparison
of distinct pointer types lacks a cast [enabled by default]
- drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c:1709:7: warning: comparison
of distinct pointer types lacks a cast [enabled by default]
Signed-off-by: Joren Van Onder <joren.vanonder@gmail.com> Acked-By: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
af_packet: remove BUG statement in tpacket_destruct_skb
Here's a quote of the comment about the BUG macro from asm-generic/bug.h:
Don't use BUG() or BUG_ON() unless there's really no way out; one
example might be detecting data structure corruption in the middle
of an operation that can't be backed out of. If the (sub)system
can somehow continue operating, perhaps with reduced functionality,
it's probably not BUG-worthy.
If you're tempted to BUG(), think again: is completely giving up
really the *only* solution? There are usually better options, where
users don't need to reboot ASAP and can mostly shut down cleanly.
In our case, the status flag of a ring buffer slot is managed from both sides,
the kernel space and the user space. This means that even though the kernel
side might work as expected, the user space screws up and changes this flag
right between the send(2) is triggered when the flag is changed to
TP_STATUS_SENDING and a given skb is destructed after some time. Then, this
will hit the BUG macro. As David suggested, the best solution is to simply
remove this statement since it cannot be used for kernel side internal
consistency checks. I've tested it and the system still behaves /stable/ in
this case, so in accordance with the above comment, we should rather remove it.
Signed-off-by: Daniel Borkmann <daniel.borkmann@tik.ee.ethz.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
rcu_dereference occurs in update section. Replacement by
rcu_dereference_protected in order to prevent lockdep
complaint.
Found by Linux Driver Verification project (linuxtesting.org)
Signed-off-by: Denis Efremov <yefremov.denis@gmail.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Sun, 12 Aug 2012 18:45:33 +0000 (21:45 +0300)]
Merge tag 'gpio-fixes-v3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull gpio fixes from Linus Walleij:
- Fix a resource leak in the SCH driver
- Fix the register address calculation in the MSIC driver
- Fix the PXA driver's devicetree functions
- Delete redundant shadow variable leftovers in the MXC driver
- Specify the GPIO base for the device tree probe in the MXC driver
- Add a modalias for the i.MX driver
- Fix off-by-one bug in the Samsung driver
- Fix erroneous errorpath in the Langwell driver
* tag 'gpio-fixes-v3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
drivers/gpio/gpio-langwell.c: fix error return code
gpio: samsung: Fix off-by-one bug in gpio addresses
ARM: dts: imx: add alias for gpio
gpio/mxc: specify gpio base for device tree probe
gpio/mxc: remove redundant shadow variables initialization
GPIO: gpio-pxa: fix devicetree functions
gpio: msic: Fix calculating register address in msic_gpio_to_oreg()
gpio-sch: Fix leak of resource
Linus Torvalds [Sun, 12 Aug 2012 18:34:09 +0000 (21:34 +0300)]
Merge tag 'pm-for-3.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael J. Wysocki:
- Fix for two recent regressions in the generic PM domains framework.
- Revert of a commit that introduced a resume regression and is
conceptually incorrect in my opinion.
- Fix for a return value in pcc-cpufreq.c from Julia Lawall.
- RTC wakeup signaling fix from Neil Brown.
- Suppression of compiler warnings for CONFIG_PM_SLEEP unset in ACPI,
platform/x86 and TPM drivers.
* tag 'pm-for-3.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
tpm_tis / PM: Fix unused function warning for CONFIG_PM_SLEEP
platform / x86 / PM: Fix unused function warnings for CONFIG_PM_SLEEP
ACPI / PM: Fix unused function warnings for CONFIG_PM_SLEEP
Revert "NMI watchdog: fix for lockup detector breakage on resume"
PM: Make dev_pm_get_subsys_data() always return 0 on success
drivers/cpufreq/pcc-cpufreq.c: fix error return code
RTC: Avoid races between RTC alarm wakeup and suspend.
Linus Torvalds [Sun, 12 Aug 2012 18:31:44 +0000 (21:31 +0300)]
Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm-soc bug fixes from Arnd Bergmann:
"These are a bunch of bug fixes that came in after the merge window and
one update for the MAINTAINERS file.
The largest part of the fixes are patches that address bugs found by
building all the ARM defconfig files. There are a lot more warnings
that we have patches for, but the others are either still under
discussion or are harmless and do not cause actual problems besides
making the build slightly noisy."
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (30 commits)
ARM: davinci: remove broken ntosd2_init_i2c
ARM: s3c24xx: enable CONFIG_BUG for tct_hammer
omap-rng: fix use of SIMPLE_DEV_PM_OPS
spi/s3c64xx: improve error handling
mtd/omap2: fix dmaengine_slave_config error handling
gpio: em: do not discard em_gio_irq_domain_cleanup
ARM: exynos: exynos_pm_add_dev_to_genpd may be unused
ARM: imx: gpmi-nand depends on mxs-dma
ARM: integrator: include <linux/export.h>
ARM: s3c24xx: use new PWM driver
ARM: sa1100: include linux/io.h in hackkit leds code
Input: eeti_ts: pass gpio value instead of IRQ
ARM: pxa: remove irq_to_gpio from ezx-pcap driver
ARM: tegra: more regulator fixes for Harmony
usb/ohci-omap: remove unused variable
mfd/asic3: fix asic3_mfd_probe return value
ARM: kirkwood: fix typo in Makefile.boot
i.MX27: Fix emma-prp and csi clocks.
ARM: integrator: use clk_prepare_enable() for timer
MAINTAINERS: update entry for Linus Walleij
...
Jeff Mahoney [Fri, 10 Aug 2012 19:07:09 +0000 (15:07 -0400)]
printk: Fix calculation of length used to discard records
While tracking down a weird buffer overflow issue in a program that
looked to be sane, I started double checking the length returned by
syslog(SYSLOG_ACTION_READ_ALL, ...) to make sure it wasn't overflowing
the buffer.
It turns out that the loops that calculate how much space the entries
will take when they're copied don't include the newlines and prefixes
that will be included in the final output since prev flags is passed as
zero.
This patch properly accounts for it and fixes the overflow.
CC: stable@kernel.org Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Daniel Vetter [Thu, 9 Aug 2012 20:33:58 +0000 (22:33 +0200)]
drm/i915: don't grab dev->struct_mutex for userspace forcewak
Since forcewake is now protected by a spinlock, we don't need to grab
dev->struct_mutex any more. This way we can also get rid of a stale
comment, noticed by Ben Widawsky while reviewing some locking changes.
v2: Kill the unused variable ret, noticed by Fengguang Wu.
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Takashi Iwai [Sat, 11 Aug 2012 06:56:42 +0000 (08:56 +0200)]
drm/i915: Fix blank panel at reopening lid
When you reopen the lid on a laptop with PCH, the panel suddenly goes
blank sometimes. It seems because BLC_PWM_CPU_CTL register is cleared
to zero when BLC_PWM_CPU_CTL2 and BLC_PWM_PCH_CTL1 registers are
enabled.
This patch fixes the problem by moving the call of the function setting
BLC_PWM_CPU_CTL after enabling other two registers.
Eric Dumazet [Sun, 29 Jul 2012 20:52:21 +0000 (20:52 +0000)]
codel: refine one condition to avoid a nul rec_inv_sqrt
One condition before codel_Newton_step() was not good if
we never left the dropping state for a flow. As a result
rec_inv_sqrt was 0, instead of the ~0 initial value.
codel control law was then set to a very aggressive mode, dropping
many packets before reaching 'target' and recovering from this problem.
To keep codel_vars_init() as efficient as possible, refine
the condition to make sure rec_inv_sqrt initial value is correct
Many thanks to Anton Mich for discovering the issue and suggesting
a fix.
Reported-by: Anton Mich <lp2s1h@gmail.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Emil Tantilov [Fri, 10 Aug 2012 07:35:14 +0000 (07:35 +0000)]
ixgbe: add missing braces
This patch adds missing braces around the 10gig link check to include the check for KR support.
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Reported-by: Sascha Wildner <saw@online.de> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 10 Aug 2012 23:26:41 +0000 (16:26 -0700)]
Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:
====================
Here is a handful of fixes intended for 3.6.
Daniel Drake offers a cfg80211 fix to consume pending events before
taking a wireless device down. This prevents a resource leak.
Stanislaw Gruszka gives us a fix for a NULL pointer dereference in
rt61pci.
Johannes Berg provides an iwlwifi patch to disable "greenfield" mode.
Use of that mode was causing a rate scaling problem in for iwlwifi.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Paulo Zanoni [Fri, 10 Aug 2012 13:03:03 +0000 (10:03 -0300)]
drm/i915: try harder to find WR PLL clock settings
If we don't find the exact refresh rate, go with the next one. This
makes some modes work for me. They won't have the best settings, but
will at least have something. Just returning from this function when
we don't find the perfect settings does not help us at all.
Version 2:
- Remove duplicate lines on the clock table.
- Add back debug message with refresh, p, n2 and r2.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Paulo Zanoni [Fri, 10 Aug 2012 13:05:10 +0000 (10:05 -0300)]
drm/i915: use the correct encoder type when comparing
- intel_encoder->type is INTEL_OUTPUT_SOMETHING
- drm_encoder->encoder_type is DRM_MODE_ENCODER_SOMETHING
Here we're using intel_encoder, so compare the oranges against
oranges. While at it, rename the variable to "intel_encoder" so we
keep our naming standards used everywhere.
Luckily this was not a bug because both DRM_MODE_ENCODER_DAC and
INTEL_OUTPUT_ANALOG are defined as 1. This is the only case where the
drm definition matches the intel definition.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>