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2014-02-05drm/vmwgfx: Fix SET_SHADER_CONST emulation on guest-backed devicesThomas Hellstrom
Emulate the SET_SHADER_CONST legacy command on guest-backed devices by issuing a SET_GB_SHADERCONSTS_INLINE command. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
2014-02-05drm/vmwgfx: Fix regression caused by "drm/ttm: make ttm reservation calls ↵Thomas Hellstrom
behave like reservation calls" The call to ttm_eu_backoff_reservation() as part of an error path would cause a lock imbalance if the reservation ticket was not initialized. This error is easily triggered from user-space by submitting a bogus command stream. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com> Cc: stable@vger.kernel.org Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Dave Airlie <airlied@redhat.com>
2014-02-05drm/vmwgfx: Don't commit staged bindings if execbuf failsThomas Hellstrom
If execbuf fails and binding commands are never sent to the device, don't commit the staged context bindings to the tracker. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
2014-01-30Merge branch 'drm-nouveau-next' of ↵Dave Airlie
git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-next more fixes for nouveau. * 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: drm/nouveau: resume display if any later suspend bits fail drm/nouveau: fix lock unbalance in nouveau_crtc_page_flip drm/nouveau: implement hooks for needed for drm vblank timestamping support drm/nouveau/disp: add a method to fetch info needed by drm vblank timestamping drm/nv50: fill in crtc mode struct members from crtc_mode_fixup
2014-01-30Merge branch 'drm-next-3.14' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-next more radeon fixes * 'drm-next-3.14' of git://people.freedesktop.org/~agd5f/linux: drm/radeon/dce8: workaround for atom BlankCrtc table drm/radeon/DCE4+: clear bios scratch dpms bit (v2) drm/radeon: set si_notify_smc_display_change properly drm/radeon: fix DAC interrupt handling on DCE5+ drm/radeon: clean up active vram sizing drm/radeon: skip async dma init on r6xx drm/radeon/runpm: don't runtime suspend non-PX cards drm/radeon: add ring to fence trace functions drm/radeon: add missing trace point drm/radeon: fix VMID use tracking
2014-01-30drm/nouveau: resume display if any later suspend bits failIlia Mirkin
If either idling channels or suspending the fence were to fail, the display would never be resumed. Also if a client fails, resume the fence (not functionally important, but it would potentially leak memory). See https://bugs.freedesktop.org/show_bug.cgi?id=70213 Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-30drm/nouveau: fix lock unbalance in nouveau_crtc_page_flipMaarten Lankhorst
Fixes a regression introduced by d5c1e84b3a130f0 "drm/nouveau: hold mutex while syncing to kernel channel". Cc: stable@vger.kernel.org #3.13 Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-30drm/nouveau: implement hooks for needed for drm vblank timestamping supportBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-30drm/nouveau/disp: add a method to fetch info needed by drm vblank timestampingBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-30drm/nv50: fill in crtc mode struct members from crtc_mode_fixupBen Skeggs
The DRM uses the adjusted mode to calculate constants for vblank timestamping. Our encoder mode_fixup (usually) replaces this data with our backend mode information, which doesn't have the needed data filled in already. Reported-by: Mario Kleiner mario.kleiner.de@gmail.com Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-29drm/radeon/dce8: workaround for atom BlankCrtc tableAlex Deucher
Some DCE8 boards have a funky BlankCrtc table that results in a timeout when trying to blank the display. The timeout is harmless (all operations needed from the table are complete), but wastes time and is confusing to users so work around it. bug: https://bugs.freedesktop.org/show_bug.cgi?id=73420 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2014-01-29drm/radeon/DCE4+: clear bios scratch dpms bit (v2)Alex Deucher
The BlankCrtc table in some DCE8 boards has some logic shortcuts for the vbios when this bit is set. Clear it for driver use. v2: fix typo Bug: https://bugs.freedesktop.org/show_bug.cgi?id=73420 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2014-01-29drm/radeon: set si_notify_smc_display_change properlyAlex Deucher
This is effectively a revert of 4573388c92ee60b4ed72b8d95b73df861189988c. Forcing a display active when there is none causes problems with dpm on some SI boards which results in improperly initialized dpm state and boot failures on some boards. As for the bug commit 4573388c92ee tried to address, one can manually force the state to high for better performance when using the card as a headless compute node until a better fix is developed. bugs: https://bugs.freedesktop.org/show_bug.cgi?id=73788 https://bugs.freedesktop.org/show_bug.cgi?id=69395 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> cc: stable@vger.kernel.org
2014-01-29drm/radeon: fix DAC interrupt handling on DCE5+Alex Deucher
DCE5 and newer hardware only has 1 DAC. Use the correct offset. This may fix display problems on certain board configurations. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2014-01-29drm/radeon: clean up active vram sizingAlex Deucher
If we are not able to properly initialize one of the gpu engines for buffer paging, we limit vram to the size of the cpu visible aperture. We generally either use the gfx or dma engine to do this. Clean up the size limiting code to only adjust the size based on what ring is selected for buffer paging rather than making assumptions about which engine is selected for paging. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com>
2014-01-29drm/radeon: skip async dma init on r6xxAlex Deucher
The hw is buggy and it's not currently used, but it's currently still initialized by the driver. Skip the init. Skipping init also seems to improve stability with dpm on some r6xx asics. bug: https://bugs.freedesktop.org/show_bug.cgi?id=66963 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com>
2014-01-29drm/radeon/runpm: don't runtime suspend non-PX cardsAlex Deucher
Prevent runtime suspend of non-PX GPUs. Runtime suspend is not what we want in those cases. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2014-01-29drm/radeon: add ring to fence trace functionsChristian König
Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-01-29drm/radeon: add missing trace pointChristian König
Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-01-29drm/radeon: fix VMID use trackingChristian König
Otherwise we allocate a new VMID on nearly every submit. Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-01-29Merge tag 'drm/for-3.14-rc1-20140123' of ↵Dave Airlie
git://anongit.freedesktop.org/tegra/linux into drm-next drm/tegra: Changes for v3.14-rc1 (update) These patches fix some issues caused by the DRM panel support from the previous pull request and add two more panels (for the Toshiba AC100 as well as the Seaboard and Ventana). * tag 'drm/for-3.14-rc1-20140123' of git://anongit.freedesktop.org/tegra/linux: drm/tegra: Obtain head number from DT drm/panel: update EDID BLOB in panel_simple_get_modes() gpu: host1x: Remove unnecessary include drm/tegra: Use proper data type drm/tegra: Clarify how panel modes override others drm/tegra: Fix possible CRTC mask for RGB outputs drm/i915: Use drm_encoder_crtc_ok() drm: Move drm_encoder_crtc_ok() to core drm: provide a helper for the encoder possible_crtcs mask drm/tegra: Don't check resource with devm_ioremap_resource() drm/panel: Add support for Chunghwa CLAA101WA01A panel drm/panel: Add support for Samsung LTN101NT05 panel
2014-01-29drm: ast,cirrus,mgag200: use drm_can_sleepDave Airlie
these 3 were checking in_interrupt but we have situations where calling vunmap under this could cause a BUG to be hit in smp_call_function_many. Use the drm_can_sleep macro instead, which should stop this path from been taken in this case. Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-01-29Merge tag 'drm-intel-fixes-2014-01-28' of ↵Dave Airlie
git://people.freedesktop.org/~danvet/drm-intel into drm-next Pile of -fixes all over the place. Lot's of cc: stable. Only big thing is that we've dropped the preliminary hw support tag for bdw - it seems to work. Which also means that I'll shovel a few more bdw patches through -fixes, there's 5 w/a patches from Ken already on intel-gfx. * tag 'drm-intel-fixes-2014-01-28' of git://people.freedesktop.org/~danvet/drm-intel: drm/i915: Fix the offset issue for the stolen GEM objects drm/i915: Decouple GPU error reporting from ring initialisation i915: remove pm_qos request on error Revert "drm/i915: Mask reserved bits in display/sprite address registers" drm/i915: VLV2 - Fix hotplug detect bits drm/i915: Allow reading the TIMESTAMP register on Gen8. drm/i915: Repeat evictions whilst pageflip completions are outstanding drm/i915: Wait for completion of pending flips when starved of fences drm/i915: don't disable DP port after a failed link training drm/i915: don't disable the DP port if the link is lost drm/i915: Eliminate lots of WARNs when there's no backlight present drm/i915: g4x/vlv: fix dp aux interrupt mask drm/i915/ppgtt: Defer request freeing on reset i915: send D1 opregion notification drm/i915/bdw: remove preliminary_hw_support flag from BDW drm/i915: Tune down reset_stat output from ERROR to debug drm/i915: Make semaphore modparam RO drm/i915: Fix disabled semaphores drm/i915: Clarify relocation errnos drm/i915: Spelling s/auxilliary/auxiliary/
2014-01-29Merge branch 'drm-armada-fixes' of ↵Dave Airlie
git://ftp.arm.linux.org.uk/~rmk/linux-cubox into drm-next Just one-liner which corrects a select statement for DRM_KMS_FB_HELPER which looks like it was missed in the initial merge. Based on 3.13. * 'drm-armada-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox: (55 commits) DRM: armada: fix missing DRM_KMS_FB_HELPER select
2014-01-29Merge tag 'omapdrm-3.14' of ↵Dave Airlie
git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into drm-next omapdrm patches for 3.14 * tag 'omapdrm-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: drm/omap: Enable DT support for DMM drm/omap: fix: change dev_unload order drm/omap: fix: disable encoder before destroying it drm/omap: fix: disconnect devices when omapdrm module is removed drm/omap: fix: Defer probe if an omapdss device requests for it at connect drm/omap: fix (un)registering irqs inside an irq handler Conflicts: drivers/gpu/drm/omapdrm/omap_drv.c
2014-01-29Merge branch 'gma500-next' of git://github.com/patjak/drm-gma500 into drm-nextDave Airlie
Only two patches this time around. One trivial and one locking fix. * 'gma500-next' of git://github.com/patjak/drm-gma500: drm/gma500: Lock struct_mutex around cursor updates drivers: gpu: Mark function as static in cdv_intel_dp.c
2014-01-28drm/gma500: Lock struct_mutex around cursor updatesPatrik Jakobsson
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=64361 Cc: <stable@vger.kernel.org> Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
2014-01-28drm/i915: Fix the offset issue for the stolen GEM objectsAkash Goel
The 'offset' field of the 'scatterlist' structure was wrongly programmed with the offset value from the base of stolen area, whereas this field indicates the offset from where the interested data starts within the first PAGE pointed to by 'scattterlist' structure. As a result when a new GEM object allocated from stolen area is mapped to GTT, it could lead to an overwrite of GTT entries as the page count calculation will go wrong, refer the function 'sg_page_count'. v2: Modified the commit message. (Chris) Signed-off-by: Akash Goel <akash.goel@intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: stable@vger.kernel.org Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=71908 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=69104 Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-27DRM: armada: fix missing DRM_KMS_FB_HELPER selectRussell King
Commit 92b6f89f6b8f (drm: Add separate Kconfig option for fbdev helpers) happened in parallel with the inclusion of Armada DRM into mainline, and so missed this update. Add the necessary select statement to avoid build errors. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-01-27drm/i915: Decouple GPU error reporting from ring initialisationChris Wilson
Currently we report through our error state only the rings that have been initialised (as detected by ring->obj). This check is done after the GPU reset and ring re-initialisation, which means that the software state may not be the same as when we captured the hardware error and we may not print out any of the vital information for debugging the hang. This (and the implied object leak) is a regression from commit 3d57e5bd1284f44e325f3a52d966259ed42f9e05 Author: Ben Widawsky <ben@bwidawsk.net> Date: Mon Oct 14 10:01:36 2013 -0700 drm/i915: Do a fuller init after reset Note that we are already starting to get bug reports with incomplete error states from 3.13, which also hampers debugging userspace driver issues. v2: Prevent a NULL dereference on 830gm/845g after a GPU reset where the scratch obj may be NULL. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> References: https://bugs.freedesktop.org/show_bug.cgi?id=74094 Cc: stable@vger.kernel.org # please don't delay since it's a vital support/debug feature for the intel gfx stack in general Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> [danvet: Add a bit of fluff to make it clear we need this expedited in stable.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-25i915: remove pm_qos request on errorStanislaw Gruszka
Not removing pm qos request and free memory for it can cause crash, when some other driver use pm qos. For example, this oops: BUG: unable to handle kernel paging request at fffffffffffffff8 IP: [<ffffffff81307a6b>] plist_add+0x5b/0xd0 Call Trace: [<ffffffff810acf25>] pm_qos_update_target+0x125/0x1e0 [<ffffffff810ad071>] pm_qos_add_request+0x91/0x100 [<ffffffffa053ec14>] e1000_open+0xe4/0x5b0 [e1000e] was caused by earlier i915 probe failure: [drm:i915_report_and_clear_eir] *ERROR* EIR stuck: 0x00000010, masking [drm:init_ring_common] *ERROR* render ring initialization failed ctl 0001f001 head 00003004 tail 00000000 start 00003000 [drm:i915_driver_load] *ERROR* failed to init modeset i915: probe of 0000:00:02.0 failed with error -5 Bug report: http://bugzilla.redhat.com/show_bug.cgi?id=1057533 Reported-by: Giandomenico De Tullio <ghisha@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> [danvet: Drop unnecessary code movement.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-24Revert "drm/i915: Mask reserved bits in display/sprite address registers"Daniel Vetter
This reverts commit 446f254566ea8911c9e19c7bc8a162fc0e53cf31. I've left the masking in the pageflip code since that seems to be some useful piece of preemptive robustness. Iirc I've merged this patch under the assumption that the BIOS leaves some random gunk in the lower bits and gets unhappy if we trample on them. We have quite a few case like this, so this made sense. Now I've just learned that there's actual hardware features bits in the low 12 bits, and the kernel needs to preserve them to allow a userspace blob to do its job. Given Dave Airlie's clear stance on userspace blob drivers I've quickly chatted with him and he doesn't seem too happy. So let's revert this. If there are indeed bits that we must preserve in this range then we can ressurrect this patch, but with proper documentation for those bits supplied. And we probably also need to think a bit about interactions with our driver. Cc: Armin Reese <armin.c.reese@intel.com> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Dave Airlie <airlied@linux.ie> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-23drm/tegra: Obtain head number from DTThierry Reding
The head number of a given display controller is fixed in hardware and required to program outputs appropriately. Relying on the driver probe order to determine this number will not work, since that could yield a situation where the second head was probed first and would be assigned head number 0 instead of 1. By explicitly specifying the head number in the device tree, it is no longer necessary to rely on these assumptions. As a fallback, if the property isn't available, derive the head number from the display controller node's position in the device tree. That's somewhat more reliable than the previous default but not a proper solution. Tested-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-01-23drm/i915: VLV2 - Fix hotplug detect bitsTodd Previte
Add new definitions for hotplug live status bits for VLV2 since they're in reverse order from the gen4x ones. Changelog: - Restored gen4 bit definitions - Added new definitions for VLV2 - Added platform check for IS_VALLEYVIEW() in dp_detect to use the correct bit defintions - Replaced a lost trailing brace for the added switch() Signed-off-by: Todd Previte <tprevite@gmail.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=73951 [danvet: Switch to _VLV postfix instead of prefix and regroupg comments again so that the g4x warning is right next to those defines. Also add a _G4X suffix for those special ones. Also cc stable.] Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-23Merge branch 'drm-nouveau-next' of ↵Dave Airlie
git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-next Summary: - GK110/GK208 acceleration - loads more work towards pm, though, still behind a disable wall for now - error reporting improvements from both Ilia and myself - more old-school overlay improvements from Ilia - misc other bits and pieces * 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: (68 commits) drm/nouveau: call drm_vblank_cleanup() earlier drm/nouveau: create base display from common code drm/nv50/gr: print mpc trap name when it's not an mp trap drm/nv50/gr: update list of mp errors, make it a bitfield drm/nv50/gr: add more trap names to print on error drm/nouveau/devinit: lock/unlock crtc regs for all devices, not just pre-nv50 drm/nouveau: hold mutex while syncing to kernel channel drm/nv50-/devinit: prevent use of engines marked as disabled by hw/vbios drm/nouveau/device: provide a way for devinit to mark engines as disabled drm/nouveau/devinit: tidy up the subdev class definition drm/nouveau/bar: tidy up the subdev and object class definitions drm/nouveau/instmem: tidy up the object class definition drm/nouveau/instmem: tidy up the subdev class definition drm/nouveau/pwr: implement a simple i2c stack drm/nouveau/pwr: have rd/wr32 routines clobber data instead of addr drm/nve0/fb: turn off some bits in 10f584 at init drm/nve0/fb/gddr5: merge a fix from ddr3 for one of the timing settings drm/nve0/fb/gddr5: yet another random 10f200 bit drm/nvc0-/fb: hook up skeleton interrupt handler drm/nve0/fb/gddr5: more 10f200 stuff ...
2014-01-23drm/nouveau: call drm_vblank_cleanup() earlierBen Skeggs
Fixes a NULL-ptr deref seen on module unload sometimes. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-23drm/nouveau: create base display from common codeBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-23drm/nv50/gr: print mpc trap name when it's not an mp trapIlia Mirkin
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
2014-01-23drm/nv50/gr: update list of mp errors, make it a bitfieldIlia Mirkin
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
2014-01-23drm/nv50/gr: add more trap names to print on errorIlia Mirkin
Also avoids printing the errors bitfield if that information has already been shown. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
2014-01-23drm/nouveau/devinit: lock/unlock crtc regs for all devices, not just pre-nv50Ilia Mirkin
Also make nv_lockvgac work for nv50+ devices. This should fix IO_CONDITION and related VBIOS opcodes that read/write the crtc regs. See https://bugs.freedesktop.org/show_bug.cgi?id=60680 Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-23drm/nouveau: hold mutex while syncing to kernel channelMaarten Lankhorst
Not holding the mutex potentially causes corruption of the kernel channel when page flipping. Cc: stable@vger.kernel.org #3.13 Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-23drm/nv50-/devinit: prevent use of engines marked as disabled by hw/vbiosIlia Mirkin
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-23drm/nouveau/device: provide a way for devinit to mark engines as disabledIlia Mirkin
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-23drm/nouveau/devinit: tidy up the subdev class definitionBen Skeggs
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-23drm/nouveau/bar: tidy up the subdev and object class definitionsBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-23drm/nouveau/instmem: tidy up the object class definitionBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-23drm/nouveau/instmem: tidy up the subdev class definitionBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-23drm/nouveau/pwr: implement a simple i2c stackBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-01-23drm/nouveau/pwr: have rd/wr32 routines clobber data instead of addrBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>