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2017-05-12Merge branch 'drm-next-4.12' of git://people.freedesktop.org/~agd5f/linux into drm-nextDave Airlie1-2/+1
Fixes for 4.12. This is a bit bigger than usual since it's 3 weeks worth of fixes and most of these changes are for vega10 which is new for 4.12 and still in a fair amount of flux. It looks like you missed my last pull request, so those patches are included here as well. Highlights: - Lots of vega10 fixes - Fix interruptable wait mixup - Fan control method fixes - Misc display fixes for radeon and amdgpu - Misc bug fixes * 'drm-next-4.12' of git://people.freedesktop.org/~agd5f/linux: (132 commits) drm/amd/powerplay: refine pwm1_enable callback functions for CI. drm/amd/powerplay: refine pwm1_enable callback functions for vi. drm/amd/powerplay: refine pwm1_enable callback functions for Vega10. drm/amdgpu: refine amdgpu pwm1_enable sysfs interface. drm/amdgpu: add amd fan ctrl mode enums. drm/amd/powerplay: add more smu message on Vega10. drm/amdgpu: fix dependency issue drm/amd: fix init order of sched job drm/amdgpu: add some additional vega10 pci ids drm/amdgpu/soc15: use atomfirmware for setting bios scratch for reset drm/amdgpu/atomfirmware: add function to update engine hang status drm/radeon: only warn once in radeon_ttm_bo_destroy if va list not empty drm/amdgpu: fix mutex list null pointer reference drm/amd/powerplay: fix bug sclk/mclk level can't be set on vega10. drm/amd/powerplay: Setup sw CTF to allow graceful exit when temperature exceeds maximum. drm/amd/powerplay: delete dead code in powerplay. drm/amdgpu: Use less generic enum definitions drm/amdgpu/gfx9: derive tile pipes from golden settings drm/amdgpu/gfx: drop max_gs_waves_per_vgt drm/amd/powerplay: disable engine spread spectrum feature on Vega10. ...
2017-05-08drm: use set_memory.h headerLaura Abbott3-0/+9
set_memory_* functions have moved to set_memory.h. Switch to this explicitly. [akpm@linux-foundation.org: track drivers/gpu/drm/i915/i915_gem_gtt.c linux-next changes] Link: http://lkml.kernel.org/r/1488920133-27229-8-git-send-email-labbott@redhat.com Signed-off-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-04-28drm/ttm: cleanup unuse ret valueHuang Rui1-2/+1
The ret must be 0 here, otherwise, the function will return after init_mem_type. Signed-off-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-04-11Backmerge tag 'v4.11-rc6' into drm-nextDave Airlie1-6/+8
Linux 4.11-rc6 drm-misc needs 4.11-rc5, may as well fix conflicts with rc6.
2017-04-04drm/ttm: add TTM_PL_FLAG_CONTIGUOUS v2Christian König1-1/+3
This allows drivers to specify if they need a contiguous allocation or not. v2: use space instead of tab Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-04-04drm/ttm: add io_mem_pfn callbackChristian König1-1/+9
This allows the driver to handle io_mem mappings on their own. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-04-04drm/ttm: cleanup and optimize ttm_bo_mem_compat v2Christian König1-20/+25
No need to implement the same logic twice. Also check if the busy placements are identical to the already scanned placements before checking them. v2: improve check even more as suggested by Michel. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-30drm/ttm: Avoid calling drm_ht_remove from atomic contextThomas Hellstrom1-3/+1
On recent kernels, calling drm_ht_remove triggers a might_sleep() warning from within vfree(). So avoid calling it from atomic context. The use-cases we fix here are both from destructors so there should be no concurrent use of the hash tables. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com>
2017-03-30drm/ttm, drm/vmwgfx: Relax permission checking when opening surfacesThomas Hellstrom1-3/+7
Previously, when a surface was opened using a legacy (non prime) handle, it was verified to have been created by a client in the same master realm. Relax this so that opening is also allowed recursively if the client already has the surface open. This works around a regression in svga mesa where opening of a shared surface is used recursively to obtain surface information. Cc: <stable@vger.kernel.org> Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com>
2017-03-29drm/ttm: add ttm_bo_init_reservedNicolai Hähnle1-15/+44
This variant of ttm_bo_init returns the validated buffer object with the reservation lock held when resv == NULL. This is convenient for callers that want to use the BO immediately, e.g. for initializing its contents. Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-29drm/ttm: never add BO that failed to validate to the LRU listNicolai Hähnle1-5/+7
Fixes a potential race condition in amdgpu that looks as follows: Task 1: attempt ttm_bo_init, but ttm_bo_validate fails Task 1: add BO to global list anyway Task 2: grabs hold of the BO, waits on its reservation lock Task 1: releases its reference of the BO; never gives up the reservation lock The patch "drm/amdgpu: fix a potential deadlock in amdgpu_bo_create_restricted()" attempts to fix that by releasing the reservation lock in amdgpu code; unfortunately, it introduces a use-after-free when this race _doesn't_ happen. This patch should fix the race properly by never adding the BO to the global list in the first place. Cc: zhoucm1 <david1.zhou@amd.com> Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com> Tested-by: Samuel Pitoiset <samuel.pitoiset@gmail.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-03-07Merge tag 'drm-misc-next-2017-03-06' of git://anongit.freedesktop.org/git/drm-misc into drm-nextDave Airlie1-1/+1
First slice of drm-misc-next for 4.12: Core/subsystem-wide: - link status core patch from Manasi, for signalling link train fail to userspace. I also had the i915 patch in here, but that had a small buglet in our CI, so reverted. - more debugfs_remove removal from Noralf, almost there now (Noralf said he'll try to follow up with the stragglers). - drm todo moved into kerneldoc, for better visibility (see Documentation/gpu/todo.rst), lots of starter tasks in there. - devm_ of helpers + use it in sti (from Ben Gaignard, acked by Rob Herring) - extended framebuffer fbdev support (for fbdev flipping), and vblank wait ioctl fbdev support (Maxime Ripard) - misc small things all over, as usual - add vblank callbacks to drm_crtc_funcs, plus make lots of good use of this to simplify drivers (Shawn Guo) - new atomic iterator macros to unconfuse old vs. new state Small drivers: - vc4 improvements from Eric - vc4 kerneldocs (Eric)! - tons of improvements for dw-mipi-dsi in rockchip from John Keeping and Chris Zhong. - MAINTAINERS entries for drivers managed in drm-misc. It's not yet official, still an experiment, but definitely not complete fail and better to avoid confusion. We kinda screwed that up with drm-misc a bit when we started committers last year. - qxl atomic conversion (Gabriel Krisman) - bunch of virtual driver polish (qxl, virgl, ...) - misc tiny patches all over This is the first time we've done the same merge-window blackout for drm-misc as we've done for drm-intel for ages, hence why we have a _lot_ of stuff queued already. But it's still only half of drm-intel (room to grow!), and the drivers in drm-misc experiment seems to work at least insofar as that you also get lots of driver updates here alredy. * tag 'drm-misc-next-2017-03-06' of git://anongit.freedesktop.org/git/drm-misc: (141 commits) drm/vc4: Fix OOPSes from trying to cache a partially constructed BO. drm/vc4: Fulfill user BO creation requests from the kernel BO cache. Revert "drm/i915: Implement Link Rate fallback on Link training failure" drm/fb-helper: implement ioctl FBIO_WAITFORVSYNC drm: Update drm_fbdev_cma_init documentation drm/rockchip/dsi: add dw-mipi power domain support drm/rockchip/dsi: fix insufficient bandwidth of some panel dt-bindings: add power domain node for dw-mipi-rockchip drm/rockchip/dsi: remove mode_valid function drm/rockchip/dsi: dw-mipi: correct the coding style drm/rockchip/dsi: dw-mipi: support RK3399 mipi dsi dt-bindings: add rk3399 support for dw-mipi-rockchip drm/rockchip: dw-mipi-dsi: add reset control drm/rockchip: dw-mipi-dsi: support non-burst modes drm/rockchip: dw-mipi-dsi: defer probe if panel is not loaded drm/rockchip: vop: test for P{H,V}SYNC drm/rockchip: dw-mipi-dsi: use positive check for N{H, V}SYNC drm/rockchip: dw-mipi-dsi: use specific poll helper drm/rockchip: dw-mipi-dsi: improve PLL configuration drm/rockchip: dw-mipi-dsi: properly configure PHY timing ...
2017-03-02sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>Ingo Molnar1-1/+1
We are going to split <linux/sched/signal.h> out of <linux/sched.h>, which will have to be picked up from other headers and a couple of .c files. Create a trivial placeholder <linux/sched/signal.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. Include the new header in the files that are going to need it. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-01gpu: drm: drivers: Convert printk(KERN_<LEVEL> to pr_<level>Joe Perches1-1/+1
Use a more common logging style. Miscellanea: o Coalesce formats and realign arguments o Neaten a few macros now using pr_<level> Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Rob Clark <robdclark@gmail.com> Acked-by: Sinclair Yeh <syeh@vmware.com> Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/76355db47b31668bb64d996865ceee53bd66b11f.1488285953.git.joe@perches.com
2017-02-24mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmfDave Jiang1-5/+5
->fault(), ->page_mkwrite(), and ->pfn_mkwrite() calls do not need to take a vma and vmf parameter when the vma already resides in vmf. Remove the vma parameter to simplify things. [arnd@arndb.de: fix ARM build] Link: http://lkml.kernel.org/r/20170125223558.1451224-1-arnd@arndb.de Link: http://lkml.kernel.org/r/148521301778.19116.10840599906674778980.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Theodore Ts'o <tytso@mit.edu> Cc: Darrick J. Wong <darrick.wong@oracle.com> Cc: Matthew Wilcox <mawilcox@microsoft.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@suse.com> Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-23Merge tag 'drm-for-v4.11-less-shouty' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds3-80/+92
Pull drm updates from Dave Airlie: "This is the main drm pull request for v4.11. Nothing too major, the tinydrm and mmu-less support should make writing smaller drivers easier for some of the simpler platforms, and there are a bunch of documentation updates. Intel grew displayport MST audio support which is hopefully useful to people, and FBC is on by default for GEN9+ (so people know where to look for regressions). AMDGPU has a lot of fixes that would like new firmware files installed for some GPUs. Other than that it's pretty scattered all over. I may have a follow up pull request as I know BenH has a bunch of AST rework and fixes and I'd like to get those in once they've been tested by AST, and I've got at least one pull request I'm just trying to get the author to fix up. Core: - drm_mm reworked - Connector list locking and iterators - Documentation updates - Format handling rework - MMU-less support for fbdev helpers - drm_crtc_from_index helper - Core CRC API - Remove drm_framebuffer_unregister_private - Debugfs cleanup - EDID/Infoframe fixes - Release callback - Tinydrm support (smaller drivers for simple hw) panel: - Add support for some new simple panels i915: - FBC by default for gen9+ - Shared dpll cleanups and docs - GEN8 powerdomain cleanup - DMC support on GLK - DP MST audio support - HuC loading support - GVT init ordering fixes - GVT IOMMU workaround fix amdgpu/radeon: - Power/clockgating improvements - Preliminary SR-IOV support - TTM buffer priority and eviction fixes - SI DPM quirks removed due to firmware fixes - Powerplay improvements - VCE/UVD powergating fixes - Cleanup SI GFX code to match CI/VI - Support for > 2 displays on 3/5 crtc asics - SI headless fixes nouveau: - Rework securre boot code in prep for GP10x secure boot - Channel recovery improvements - Initial power budget code - MMU rework preperation vmwgfx: - Bunch of fixes and cleanups exynos: - Runtime PM support for MIC driver - Cleanups to use atomic helpers - UHD Support for TM2/TM2E boards - Trigger mode fix for Rinato board etnaviv: - Shader performance fix - Command stream validator fixes - Command buffer suballocator rockchip: - CDN DisplayPort support - IOMMU support for arm64 platform imx-drm: - Fix i.MX5 TV encoder probing - Remove lower fb size limits msm: - Support for HW cursor on MDP5 devices - DSI encoder cleanup - GPU DT bindings cleanup sti: - stih410 cleanups - Create fbdev at binding - HQVDP fixes - Remove stih416 chip functionality - DVI/HDMI mode selection fixes - FPS statistic reporting omapdrm: - IRQ code cleanup dwi-hdmi bridge: - Cleanups and fixes adv-bridge: - Updates for nexus sii8520 bridge: - Add interlace mode support - Rework HDMI and lots of fixes qxl: - probing/teardown cleanups ZTE drm: - HDMI audio via SPDIF interface - Video Layer overlay plane support - Add TV encoder output device atmel-hlcdc: - Rework fbdev creation logic tegra: - OF node fix fsl-dcu: - Minor fixes mali-dp: - Assorted fixes sunxi: - Minor fix" [ This was the "fixed" pull, that still had build warnings due to people not even having build tested the result. I'm not a happy camper I've fixed the things I noticed up in this merge. - Linus ] * tag 'drm-for-v4.11-less-shouty' of git://people.freedesktop.org/~airlied/linux: (1177 commits) lib/Kconfig: make PRIME_NUMBERS not user selectable drm/tinydrm: helpers: Properly fix backlight dependency drm/tinydrm: mipi-dbi: Fix field width specifier warning drm/tinydrm: mipi-dbi: Silence: ‘cmd’ may be used uninitialized drm/sti: fix build warnings in sti_drv.c and sti_vtg.c files drm/amd/powerplay: fix PSI feature on Polars12 drm/amdgpu: refuse to reserve io mem for split VRAM buffers drm/ttm: fix use-after-free races in vm fault handling drm/tinydrm: Add support for Multi-Inno MI0283QT display dt-bindings: Add Multi-Inno MI0283QT binding dt-bindings: display/panel: Add common rotation property of: Add vendor prefix for Multi-Inno drm/tinydrm: Add MIPI DBI support drm/tinydrm: Add helper functions drm: Add DRM support for tiny LCD displays drm/amd/amdgpu: post card if there is real hw resetting performed drm/nouveau/tmr: provide backtrace when a timeout is hit drm/nouveau/pci/g92: Fix rearm drm/nouveau/drm/therm/fan: add a fallback if no fan control is specified in the vbios drm/nouveau/hwmon: expose power_max and power_crit ..
2017-02-21drm/ttm: fix use-after-free races in vm fault handlingNicolai Hähnle1-0/+12
The vm fault handler relies on the fact that the VMA owns a reference to the BO. However, once mmap_sem is released, other tasks are free to destroy the VMA, which can lead to the BO being freed. Fix two code paths where that can happen, both related to vm fault retries. Found via a lock debugging warning which flagged &bo->wu_mutex as locked while being destroyed. Fixes: cbe12e74ee4e ("drm/ttm: Allow vm fault retries") Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-02-03drm: Improve drm_mm search (and fix topdown allocation) with rbtreesChris Wilson1-10/+8
The drm_mm range manager claimed to support top-down insertion, but it was neither searching for the top-most hole that could fit the allocation request nor fitting the request to the hole correctly. In order to search the range efficiently, we create a secondary index for the holes using either their size or their address. This index allows us to find the smallest hole or the hole at the bottom or top of the range efficiently, whilst keeping the hole stack to rapidly service evictions. v2: Search for holes both high and low. Rename flags to mode. v3: Discover rb_entry_safe() and use it! v4: Kerneldoc for enum drm_mm_insert_mode. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: David Airlie <airlied@linux.ie> Cc: Russell King <rmk+kernel@armlinux.org.uk> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Sean Paul <seanpaul@chromium.org> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Christian Gmeiner <christian.gmeiner@gmail.com> Cc: Rob Clark <robdclark@gmail.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: Eric Anholt <eric@anholt.net> Cc: Sinclair Yeh <syeh@vmware.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com> # vmwgfx Reviewed-by: Lucas Stach <l.stach@pengutronix.de> #etnaviv Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170202210438.28702-1-chris@chris-wilson.co.uk
2017-02-01Merge branch 'drm-next-4.11' of git://people.freedesktop.org/~agd5f/linux into drm-nextDave Airlie1-60/+63
This is the main feature pull for radeon and amdgpu for 4.11. Highlights: - Power and clockgating improvements - Preliminary SR-IOV support - ttm buffer priority support - ttm eviction fixes - Removal of the ttm lru callbacks - Remove SI DPM quirks due to MC firmware issues - Handle VFCT with multiple vbioses - Powerplay improvements - Lots of driver cleanups * 'drm-next-4.11' of git://people.freedesktop.org/~agd5f/linux: (120 commits) drm/amdgpu: fix amdgpu_bo_va_mapping flags drm/amdgpu: access stolen VRAM directly on CZ (v2) drm/amdgpu: access stolen VRAM directly on KV/KB (v2) drm/amdgpu: fix kernel panic when dpm disabled on Kv. drm/amdgpu: fix dpm bug on Kv. drm/amd/powerplay: fix regresstion issue can't set manual dpm mode. drm/amdgpu: handle vfct with multiple vbios images drm/radeon: handle vfct with multiple vbios images drm/amdgpu: move misc si headers into amdgpu drm/amdgpu: remove unused header si_reg.h drm/radeon: drop pitcairn dpm quirks drm/amdgpu: drop pitcairn dpm quirks drm: radeon: radeon_ttm: Handle return NULL error from ioremap_nocache drm/amd/amdgpu/amdgpu_ttm: Handle return NULL error from ioremap_nocache drm/amdgpu: add new virtual display ID drm/amd/amdgpu: remove the uncessary parameter for ib scheduler drm/amdgpu: Bring bo creation in line with radeon driver (v2) drm/amd/powerplay: fix misspelling in header guard drm/ttm: revert "add optional LRU removal callback v2" drm/ttm: revert "implement LRU add callbacks v2" ...
2017-01-27drm/ttm: revert "add optional LRU removal callback v2"Christian König1-8/+5
Without the custom LRU management the callback is not used any more. agd: fix trivial warning Reviewed-by: Sinclair Yeh <syeh@vmware.com> Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-and-Tested-by: Roger.He <Hongbo.He@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-01-27drm/ttm: revert "implement LRU add callbacks v2"Christian König1-14/+5
The additional housekeeping had too much CPU overhead, let's use the BO priorities instead. agd: also revert hibmc changes Reviewed-by: Sinclair Yeh <syeh@vmware.com> Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-and-Tested-by: Roger.He <Hongbo.He@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-01-27drm/ttm: add BO priorities for the LRUsChristian König1-23/+44
This way the driver can specify a priority for a BO which has the effect that a BO is only evicted when all other BOs with a lower priority are evicted first. Reviewed-by: Sinclair Yeh <syeh@vmware.com> Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Roger.He <Hongbo.He@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-01-27drm/ttm: remove allow_errors parameter from ttm_bo_force_list_cleanChristian König1-17/+11
Not allowing errors here is completely pointless and actually dangerous cause trying to continue on an error can cause an endless loop. Reviewed-by: Sinclair Yeh <syeh@vmware.com> Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Roger.He <Hongbo.He@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-01-27drm/ttm: add evict parameter to ttm_bo_driver::move_notifyNicolai Hähnle1-4/+4
Ensure that the driver can listen to evictions even when they don't take the path through ttm_bo_driver::move. This is crucial for amdgpu, which relies on an eviction counter to skip re-binding page tables when possible. Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com> Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-01-27drm/ttm: Make sure BOs being swapped out are cacheableMichel Dänzer1-2/+2
The current caching state may not be tt_cached, even though the placement contains TTM_PL_FLAG_CACHED, because placement can contain multiple caching flags. Trying to swap out such a BO would trip up the BUG_ON(ttm->caching_state != tt_cached); in ttm_tt_swapout. Cc: stable@vger.kernel.org Signed-off-by: Michel Dänzer <michel.daenzer@amd.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Christian König <christian.koenig@amd.com>. Reviewed-by: Sinclair Yeh <syeh@vmware.com> Signed-off-by: Christian König <christian.koenig@amd.com>
2017-01-14locking/atomic, kref: Kill kref_sub()Peter Zijlstra2-46/+17
By general sentiment kref_sub() is a bad interface, make it go away. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-01-14locking/atomic, kref: Add kref_read()Peter Zijlstra2-3/+3
Since we need to change the implementation, stop exposing internals. Provide kref_read() to read the current reference count; typically used for debug messages. Kills two anti-patterns: atomic_read(&kref->refcount) kref->refcount.counter Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-01-10Merge tag 'drm-misc-next-2017-01-09' of git://anongit.freedesktop.org/git/drm-misc into drm-nextDave Airlie1-1/+2
Back to regular -misc pulls with reasonable sizes: - dma_fence error clarification (Chris) - drm_crtc_from_index helper (Shawn), pile more patches on the m-l to roll this out to drivers - mmu-less support for fbdev helpers from Benjamin - piles of kerneldoc work - some polish for crc support from Tomeu and Benjamin - odd misc stuff all over * tag 'drm-misc-next-2017-01-09' of git://anongit.freedesktop.org/git/drm-misc: (48 commits) dma-fence: Introduce drm_fence_set_error() helper dma-fence: Wrap querying the fence->status dma-fence: Clear fence->status during dma_fence_init() drm: fix compilations issues introduced by "drm: allow to use mmuless SoC" drm: Change the return type of the unload hook to void drm: add more document for drm_crtc_from_index() drm: remove useless parameters from drm_pick_cmdline_mode function drm: crc: Call wake_up_interruptible() each time there is a new CRC entry drm: allow to use mmuless SoC drm: compile drm_vm.c only when needed fbmem: add a default get_fb_unmapped_area function drm: crc: Wait for a frame before returning from open() drm: Move locking into drm_debugfs_crtc_crc_add drm/imx: imx-tve: Remove unused variable Revert "drm: nouveau: fix build when LEDS_CLASS=m" drm: Add kernel-doc for drm_crtc_commit_get/put drm/atomic: Fix outdated comment. drm: reference count event->completion gpu: drm: mgag200: mgag200_main:- Handle error from pci_iomap drm: Document deprecated load/unload hook ...
2017-01-09Merge tag 'drm-misc-next-2016-12-30' of git://anongit.freedesktop.org/git/drm-misc into drm-nextDave Airlie1-5/+5
First -misc pull for 4.11: - drm_mm rework + lots of selftests (Chris Wilson) - new connector_list locking+iterators - plenty of kerneldoc updates - format handling rework from Ville - atomic helper changes from Maarten for better plane corner-case handling in drivers, plus the i915 legacy cursor patch that needs this - bridge cleanup from Laurent - plus plenty of small stuff all over - also contains a merge of the 4.10 docs tree so that we could apply the dma-buf kerneldoc patches It's a lot more than usual, but due to the merge window blackout it also covers about 4 weeks, so all in line again on a per-week basis. The more annoying part with no pull request for 4 weeks is managing cross-tree work. The -intel pull request I'll follow up with does conflict quite a bit with -misc here. Longer-term (if drm-misc keeps growing) a drm-next-queued to accept pull request for the next merge window during this time might be useful. I'd also like to backmerge -rc2+this into drm-intel next week, we have quite a pile of patches waiting for the stuff in here. * tag 'drm-misc-next-2016-12-30' of git://anongit.freedesktop.org/git/drm-misc: (126 commits) drm: Add kerneldoc markup for new @scan parameters in drm_mm drm/mm: Document locking rules drm: Use drm_mm_insert_node_in_range_generic() for everyone drm: Apply range restriction after color adjustment when allocation drm: Wrap drm_mm_node.hole_follows drm: Apply tight eviction scanning to color_adjust drm: Simplify drm_mm scan-list manipulation drm: Optimise power-of-two alignments in drm_mm_scan_add_block() drm: Compute tight evictions for drm_mm_scan drm: Fix application of color vs range restriction when scanning drm_mm drm: Unconditionally do the range check in drm_mm_scan_add_block() drm: Rename prev_node to hole in drm_mm_scan_add_block() drm: Fix O= out-of-tree builds for selftests drm: Extract struct drm_mm_scan from struct drm_mm drm: Add asserts to catch overflow in drm_mm_init() and drm_mm_init_scan() drm: Simplify drm_mm_clean() drm: Detect overflow in drm_mm_reserve_node() drm: Fix kerneldoc for drm_mm_scan_remove_block() drm: Promote drm_mm alignment to u64 drm: kselftest for drm_mm and restricted color eviction ...
2016-12-30drm/mm: Convert to drm_printerDaniel Vetter1-1/+2
Including all drivers. I thought about keeping small compat functions to avoid having to change all drivers. But I really like the drm_printer idea, so figured spreading it more widely is a good thing. v2: Review from Chris: - Natural argument order and better name for drm_mm_print. - show_mm() macro in the selftest. Cc: Rob Clark <robdclark@gmail.com> Cc: Russell King <rmk+kernel@armlinux.org.uk> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Christian König <christian.koenig@amd.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jyri Sarha <jsarha@ti.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1483009764-8281-1-git-send-email-daniel.vetter@ffwll.ch
2016-12-18drm/ttm: use designated initializersKees Cook1-5/+5
Prepare to mark sensitive kernel structures for randomization by making sure they're using designated initializers. These were identified during allyesconfig builds of x86, arm, and arm64, with most initializer fixes extracted from grsecurity. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161217010011.GA140300@beast
2016-12-14mm: use vmf->address instead of of vmf->virtual_addressJan Kara1-1/+1
Every single user of vmf->virtual_address typed that entry to unsigned long before doing anything with it so the type of virtual_address does not really provide us any additional safety. Just use masked vmf->address which already has the appropriate type. Link: http://lkml.kernel.org/r/1479460644-25076-3-git-send-email-jack@suse.cz Signed-off-by: Jan Kara <jack@suse.cz> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-11-09drm/ttm: fix ttm_bo_waitChristian König1-1/+8
reservation_object_wait_timeout_rcu() should enable signaling even with a zero timeout, but ttm_bo_wait() can also be called from atomic context and then it is not a good idea to do this. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org> [sumits: fix checkpatch warnings] Link: http://patchwork.freedesktop.org/patch/msgid/1478553376-18575-3-git-send-email-alexander.deucher@amd.com
2016-10-28Merge tag 'topic/drm-misc-2016-10-27' of git://anongit.freedesktop.org/git/drm-intel into drm-nextDave Airlie4-28/+29
Pull request already again to get the s/fence/dma_fence/ stuff in and allow everyone to resync. Otherwise really just misc stuff all over, and a new bridge driver. * tag 'topic/drm-misc-2016-10-27' of git://anongit.freedesktop.org/git/drm-intel: drm/bridge: fix platform_no_drv_owner.cocci warnings drm/bridge: fix semicolon.cocci warnings drm: Print some debug/error info during DP dual mode detect drm: mark drm_of_component_match_add dummy inline drm/bridge: add Silicon Image SiI8620 driver dt-bindings: add Silicon Image SiI8620 bridge bindings video: add header file for Mobile High-Definition Link (MHL) interface drm: convert DT component matching to component_match_add_release() dma-buf: Rename struct fence to dma_fence dma-buf/fence: add an lockdep_assert_held() drm/dp: Factor out helper to distinguish between branch and sink devices drm/edid: Only print the bad edid when aborting drm/msm: add missing header dependencies drm/msm/adreno: move function declarations to header file drm/i2c/tda998x: mark symbol static where possible doc: add missing docbook parameter for fence-array drm: RIP mode_config->rotation_property drm/msm/mdp5: Advertize 180 degree rotation drm/msm/mdp5: Use per-plane rotation property
2016-10-25drm/ttm: make eviction decision a driver callback v2Christian König1-13/+22
This way the driver can decide if it is valuable to evict a BO or not. The current implementation is added as default to all existing drivers. v2: fix some typos found during internal testing Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-10-25dma-buf: Rename struct fence to dma_fenceChris Wilson4-28/+29
I plan to usurp the short name of struct fence for a core kernel struct, and so I need to rename the specialised fence/timeline for DMA operations to make room. A consensus was reached in https://lists.freedesktop.org/archives/dri-devel/2016-July/113083.html that making clear this fence applies to DMA operations was a good thing. Since then the patch has grown a bit as usage increases, so hopefully it remains a good thing! (v2...: rebase, rerun spatch) v3: Compile on msm, spotted a manual fixup that I broke. v4: Try again for msm, sorry Daniel coccinelle script: @@ @@ - struct fence + struct dma_fence @@ @@ - struct fence_ops + struct dma_fence_ops @@ @@ - struct fence_cb + struct dma_fence_cb @@ @@ - struct fence_array + struct dma_fence_array @@ @@ - enum fence_flag_bits + enum dma_fence_flag_bits @@ @@ ( - fence_init + dma_fence_init | - fence_release + dma_fence_release | - fence_free + dma_fence_free | - fence_get + dma_fence_get | - fence_get_rcu + dma_fence_get_rcu | - fence_put + dma_fence_put | - fence_signal + dma_fence_signal | - fence_signal_locked + dma_fence_signal_locked | - fence_default_wait + dma_fence_default_wait | - fence_add_callback + dma_fence_add_callback | - fence_remove_callback + dma_fence_remove_callback | - fence_enable_sw_signaling + dma_fence_enable_sw_signaling | - fence_is_signaled_locked + dma_fence_is_signaled_locked | - fence_is_signaled + dma_fence_is_signaled | - fence_is_later + dma_fence_is_later | - fence_later + dma_fence_later | - fence_wait_timeout + dma_fence_wait_timeout | - fence_wait_any_timeout + dma_fence_wait_any_timeout | - fence_wait + dma_fence_wait | - fence_context_alloc + dma_fence_context_alloc | - fence_array_create + dma_fence_array_create | - to_fence_array + to_dma_fence_array | - fence_is_array + dma_fence_is_array | - trace_fence_emit + trace_dma_fence_emit | - FENCE_TRACE + DMA_FENCE_TRACE | - FENCE_WARN + DMA_FENCE_WARN | - FENCE_ERR + DMA_FENCE_ERR ) ( ... ) Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Acked-by: Sumit Semwal <sumit.semwal@linaro.org> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161025120045.28839-1-chris@chris-wilson.co.uk
2016-09-16drm/ttm: remove cpu_address member from ttm_ttAlexandre Courbot2-7/+2
Patch 3d50d4dcb0 exposed the CPU address of DMA-allocated pages as returned by dma_alloc_coherent because Nouveau on Tegra needed it. This is not required anymore - as there were no other users for it, remove it and save some memory for everyone. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-09-14drm/ttm: use ffs in ttm_mem_type_from_placeChristian König1-7/+7
A bit pointless to search for the first bit set manually. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-08-08drm/ttm: Remove unused parameter evict from ttm_bo_move_memcpyMichel Dänzer2-4/+2
Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-08-08drm/ttm: Remove unused parameter evict from ttm_bo_move_ttmMichel Dänzer2-4/+3
Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-08-08drm/ttm: Wait for a BO to become idle before unbinding it from GTTMichel Dänzer2-2/+11
Fixes hangs under memory pressure, e.g. running the piglit test tex3d-maxsize concurrently with other tests. Fixes: 17d33bc9d6ef ("drm/ttm: drop waiting for idle in ttm_bo_evict.") Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-08-08drm/ttm: Add interface to export kernel_zone max memory size in ttmKen Wang1-0/+6
Signed-off-by: Ken Wang <Qingqing.Wang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-08-01Merge tag 'drm-for-v4.8' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds4-100/+201
Merge drm updates from Dave Airlie: "This is the main drm pull request for 4.8. I'm down with a cold at the moment so hopefully this isn't in too bad a state, I finished pulling stuff last week mostly (nouveau fixes just went in today), so only this message should be influenced by illness. Apologies to anyone who's major feature I missed :-) Core: Lockless GEM BO freeing Non-blocking atomic work Documentation changes (rst/sphinx) Prep for new fencing changes Simple display helpers Master/auth changes Register/unregister rework Loads of trivial patches/fixes. New stuff: ARM Mali display driver (not the 3D chip) sii902x RGB->HDMI bridge Panel: Support for new panels Improved backlight support Bridge: Convert ADV7511 to bridge driver ADV7533 support TC358767 (DSI/DPI to eDP) encoder chip support i915: BXT support enabled by default GVT-g infrastructure GuC command submission and fixes BXT workarounds SKL/BKL workarounds Demidlayering device registration Thundering herd fixes Missing pci ids Atomic updates amdgpu/radeon: ATPX improvements for better dGPU power control on PX systems New power features for CZ/BR/ST Pipelined BO moves and evictions in TTM GPU scheduler improvements GPU reset improvements Overclocking on dGPUs with amdgpu Polaris powermanagement enabled nouveau: GK20A/GM20B volt and clock improvements. Initial support for GP100/GP104 GPUs, GP104 will not yet support acceleration due to NVIDIA having not released firmware for them as of yet. exynos: Exynos5433 SoC with IOMMU support. vc4: Shader validation for branching imx-drm: Atomic mode setting conversion Reworked DMFC FIFO allocation External bridge support analogix-dp: RK3399 eDP support Lots of fixes. rockchip: Lots of small fixes. msm: DT bindings cleanups Shrinker and madvise support ASoC HDMI codec support tegra: Host1x driver cleanups SOR reworking for DP support Runtime PM support omapdrm: PLL enhancements Header refactoring Gamma table support arcgpu: Simulator support virtio-gpu: Atomic modesetting fixes. rcar-du: Misc fixes. mediatek: MT8173 HDMI support sti: ASOC HDMI codec support Minor fixes fsl-dcu: Suspend/resume support Bridge support amdkfd: Minor fixes. etnaviv: Enable GPU clock gating hisilicon: Vblank and other fixes" * tag 'drm-for-v4.8' of git://people.freedesktop.org/~airlied/linux: (1575 commits) drm/nouveau/gr/nv3x: fix instobj write offsets in gr setup drm/nouveau/acpi: fix lockup with PCIe runtime PM drm/nouveau/acpi: check for function 0x1B before using it drm/nouveau/acpi: return supported DSM functions drm/nouveau/acpi: ensure matching ACPI handle and supported functions drm/nouveau/fbcon: fix font width not divisible by 8 drm/amd/powerplay: remove enable_clock_power_gatings_tasks from initialize and resume events drm/amd/powerplay: move clockgating to after ungating power in pp for uvd/vce drm/amdgpu: add query device id and revision id into system info entry at CGS drm/amdgpu: add new definition in bif header drm/amd/powerplay: rename smum header guards drm/amdgpu: enable UVD context buffer for older HW drm/amdgpu: fix default UVD context size drm/amdgpu: fix incorrect type of info_id drm/amdgpu: make amdgpu_cgs_call_acpi_method as static drm/amdgpu: comment out unused defaults_staturn_pro static const structure to fix the build drm/amdgpu: enable UVD VM only on polaris drm/amdgpu: increase timeout of IB test drm/amdgpu: add destroy session when generate VCE destroy msg. drm/amd: fix deadlock of job_list_lock V2 ...
2016-07-29drm/ttm: partial revert "cleanup ttm_tt_(unbind|destroy)" v3Christian König2-7/+13
We still need to unbind explicitly during a move. This partial reverts commit ff20caa0bcbfef9f7686f8d1868a3b990921afd6. v2: remove unnecessary check and unused variable v3: fix typo in commit message Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-07-28Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds1-2/+2
Pull vfs updates from Al Viro: "Assorted cleanups and fixes. Probably the most interesting part long-term is ->d_init() - that will have a bunch of followups in (at least) ceph and lustre, but we'll need to sort the barrier-related rules before it can get used for really non-trivial stuff. Another fun thing is the merge of ->d_iput() callers (dentry_iput() and dentry_unlink_inode()) and a bunch of ->d_compare() ones (all except the one in __d_lookup_lru())" * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (26 commits) fs/dcache.c: avoid soft-lockup in dput() vfs: new d_init method vfs: Update lookup_dcache() comment bdev: get rid of ->bd_inodes Remove last traces of ->sync_page new helper: d_same_name() dentry_cmp(): use lockless_dereference() instead of smp_read_barrier_depends() vfs: clean up documentation vfs: document ->d_real() vfs: merge .d_select_inode() into .d_real() unify dentry_iput() and dentry_unlink_inode() binfmt_misc: ->s_root is not going anywhere drop redundant ->owner initializations ufs: get rid of redundant checks orangefs: constify inode_operations missed comment updates from ->direct_IO() prototype change file_inode(f)->i_mapping is f->f_mapping trim fsnotify hooks a bit 9p: new helper - v9fs_parent_fid() debugfs: ->d_parent is never NULL or negative ...
2016-07-27Merge tag 'topic/drm-misc-2016-07-22' of git://anongit.freedesktop.org/drm-intel into drm-nextDave Airlie1-1/+0
Suddenly everyone shows up with their trivial patch series! - piles of if (!ptr) check removals from Markus Elfring - more of_node_put fixes from Peter Chen - make fbdev support really optional in all drivers (except vmwgfx), somehow this fell through the cracks when we did all the hard prep work a while ago. Patches from Tobias Jakobi. - leftover patches for the connector reg/unreg cleanup (required that I backmerged drm-next) from Chris - last vgem fence patch from Chris - fix up warnings in the new sphinx gpu docs build - misc other small bits * tag 'topic/drm-misc-2016-07-22' of git://anongit.freedesktop.org/drm-intel: (57 commits) GPU-DRM-Exynos: Delete an unnecessary check before the function call "vunmap" GPU-DRM-sun4i: Delete an unnecessary check before drm_fbdev_cma_hotplug_event() drm/atomic: Delete an unnecessary check before drm_property_unreference_blob() drm/rockchip: analogix_dp: add missing clk_disable_unprepare() on error drm: drm_connector->s/connector_id/index/ for consistency drm/virtio: Fix non static symbol warning drm/arc: Remove redundant dev_err call in arcpgu_load() drm/arc: Fix some sparse warnings drm/vgem: Fix non static symbol warning drm/doc: Spinx leftovers drm/dp-mst: Missing kernel doc drm/dp-mst: Remove tx_down_in_progress drm/doc: Fix missing kerneldoc for drm_dp_helper.c drm: Extract&Document drm_irq.h drm/doc: document all the properties in drm_mode_config drm/drm-kms.rst: Remove unused drm_fourcc.h include directive drm/doc: Add kerneldoc for @index drm: Unexport drm_connector_unregister_all() drm/sun4i: Remove redundant call to drm_connector_unregister_all() drm/ttm: Delete an unnecessary check before the function call "ttm_tt_destroy" ...
2016-07-26Backmerge tag 'v4.7' into drm-nextDave Airlie1-3/+4
Linux 4.7 As requested by Daniel Vetter as the conflicts were getting messy.
2016-07-19Merge remote-tracking branch 'airlied/drm-next' into topic/drm-miscDaniel Vetter4-107/+204
Backmerge drm-next to be able to apply Chris' connector_unregister_all cleanup (need latest i915 and sun4i state for that). Also there's a trivial conflict in ttm_bo.c that git rerere fails to remember. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-07-19drm/ttm: Delete an unnecessary check before the function call "ttm_tt_destroy"Markus Elfring1-3/+1
The ttm_tt_destroy() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/54338f58-830c-a8b4-4554-5d4459bcd321@users.sourceforge.net
2016-07-07drm/ttm: fix stupid parameter inversion in the pipeline codeChristian König1-1/+1
We want to keep the newest fence, not the oldest one. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>