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2018-07-11drm/amdgpu: Avoid destroy hqd when GPU is on resetShaoyun Liu
Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2018-07-11drm/amdgpu: Avoid invalidate tlbs when gpu is on resetShaoyun Liu
Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2018-07-11drm/amdkfd: Fix kernel queue 64 bit doorbell offset calculationShaoyun Liu
The bitmap index calculation should reverse the logic used on allocation so it will clear the same bit used on allocation Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2018-07-11drm/amdgpu: Check NULL pointer for job before reset job's ringShaoyun Liu
job could be NULL when amdgpu_device_gpu_recover is called Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2018-07-11drm/amdgpu: Don't use shadow BO for compute contextShaoyun Liu
Compute contexts cannot keep going after a GPU reset. Currently the process must terminate. In the future a process may be able recreate its context from scratch. Either way, there is no need to restore the GPUVM page table from shadow BOs. Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2018-07-11drm/amdkfd: Implement hang detection in KFD and call amdgpuShaoyun Liu
The reset will be performed in a new hw_exception work thread to handle HWS hang without blocking the thread that detected the hang. Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2018-07-11drm/amdgpu: Enable the gpu reset from KFDShaoyun Liu
Hook up the gpu_recover callback from KFD to amdgpu to enable handling of GPU hangs detected by KFD. Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2018-07-11drm/amdkfd: Implement GPU reset handlers in KFDShaoyun Liu
Lock KFD and evict existing queues on reset. Notify user mode by signaling hw_exception events. Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2018-07-11drm/amdgpu: Call KFD reset handlers during GPU resetShaoyun Liu
Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2018-07-11drm/amdkfd: Add gpu reset interface and place holderShaoyun Liu
Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2018-07-11drm/amd: Add kfd ioctl defines for hw_exception eventShaoyun Liu
Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2018-07-11drm/amd: Add gpu reset interfaces between amdgpu and amdkfdShaoyun Liu
Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2018-07-11drm/amdkfd: fix zero reading of VMID and PASID for HawaiiLan Xiao
Upon VM Fault, the VMID and PASID written by HW are zeros in Hawaii. Instead of reading from ih_ring_entry, read directly from the registers. This workaround fix the soft hang issues caused by mishandled VM Fault in Hawaii. Signed-off-by: Lan Xiao <Lan.Xiao@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2018-07-11drm/amdkfd: Handle VM faults in KFDshaoyunl
1. Pre-GFX9 the amdgpu ISR saves the vm-fault status and address per per-vmid. amdkfd needs to get the information from amdgpu through the new get_vm_fault_info interface. On GFX9 and later, all the required information is in the IH ring 2. amdkfd unmaps all queues from the faulting process and create new run-list without the guilty process 3. amdkfd notifies the runtime of the vm fault trap via EVENT_TYPE_MEMORY Signed-off-by: shaoyun liu <shaoyun.liu@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2018-07-11drm/amdgpu: save vm fault information for amdkfdshaoyunl
amdgpu save the vm fault related information for KFD usage and keep the copy until KFD read it. Signed-off-by: shaoyun liu <shaoyun.liu@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2018-07-11drm/amdkfd: send SIGSEGV to process upon KFD_EVENT_TYPE_MEMORYMoses Reuben
Signed-off-by: Moses Reuben <moses.reuben@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2018-07-11drm/amdkfd: Fix error codes in kfd_get_processWei Lu
Return ERR_PTR(-EINVAL) if kfd_get_process fails to find the process. This fixes kernel oopses when a child process calls KFD ioctls with a file descriptor inherited from the parent process. Signed-off-by: Wei Lu <wei.lu2@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2018-07-11drm/amdkfd: Fix race between scheduler and context restoreJay Cornwall
The scheduler may raise SQ_WAVE_STATUS.SPI_PRIO via SQ_CMD before context restore has completed. Restoring SPI_PRIO=0 after this point may cause context save to fail as the lower priority wavefronts are not selected for execution among spin-waiting wavefronts. Leave SPI_PRIO at its SPI-initialized or scheduler-raised value. v2: Also fix race with exception handler Signed-off-by: Jay Cornwall <Jay.Cornwall@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2018-07-11drm/amdkfd: Stop using GFP_NOIO explicitlyFelix Kuehling
This is no longer needed with the memalloc_nofs_save/restore in dqm_lock/unlock. Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2018-07-11drm/amdkfd: Reliably prevent reclaim-FS while holding DQM lockFelix Kuehling
This is needed to prevent deadlocks when MMU notifiers run in reclaim-FS context and take the DQM lock for userptr evictions. Previously this was done by making all memory allocations under DQM locks GFP_NOIO. This is error prone. Using memalloc_nofs_save/restore will reliably affect all memory allocations anywhere in the kernel while the DQM lock is held. Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2018-07-11drm/admkfd use modern ktime accessorsArnd Bergmann
getrawmonotonic64() and get_monotonic_boottime64() are deprecated because of the nonstandard naming. The replacement functions ktime_get_raw_ns() and ktime_get_boot_ns() also simplify the callers. Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2018-07-27Merge branch 'drm-next-4.19' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-next Updates for 4.19. Mostly bug fixes and cleanups. Highlights: - Internal API cleanup in GPU scheduler - Decouple i2c and aux abstractions in DC - Update maintainers - Misc cleanups - Misc bug fixes Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180725215326.2709-1-alexander.deucher@amd.com
2018-07-27Merge tag 'exynos-drm-next-for-v4.19' of ↵Dave Airlie
git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next Cleanups - Change g2d driver to component based driver . g2d driver was last customed sub driver so this patch series changes it to component based driver, which also makes gem handling to be more simplify. - Cleanup of Exynos DRM suspend/resume . Register exynos drm core suspend/resume functions to prepare/complete callbacks of dev_pm_ops instead of suspend/resume callbacks to ensure exynos_drm_suspend() is called before any suspend callback from the real devices to avoid some issues on boards with complex pipelines. . Also Add pm_runtime_furce_suspend/resume as SYSTEM_SLEEP_PM_OPS to ensure that resources of each devices will be released for the system PM suspend/resume cycle. - Remove local value not used. Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/1532505748-10025-1-git-send-email-inki.dae@samsung.com
2018-07-27Merge branch 'for-upstream/malidp-fixes' of git://linux-arm.org/linux-ld ↵Dave Airlie
into drm-next I have a couple of small patches for malidp to be applied in drm-next. They have arisen from the decision to switch the writeback connectors to always connected. Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180723145302.GA28052@e110455-lin.cambridge.arm.com
2018-07-27Merge tag 'imx-drm-next-2018-07-20' of ↵Dave Airlie
git://git.pengutronix.de/git/pza/linux into drm-next drm/imx: cleanup and csi improvements - Remove the unused struct imx_drm_crtc and the unused pipes field from imx_drm_device and replace drm_dev_unref with drm_dev_put. - Extend CSI configuration to support RGB888 and BGR888 capture, as well as 16-bit RGB565 capture via a parallel bus. - Add CPMEM support for negative interlace offsets, which is necessary to support writing captured bottom-top interlaced fields to memory with interleaved lines. Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/1532100583.3438.9.camel@pengutronix.de
2018-07-25gpu: drm: amdgpu: Replace mdelay with msleep in cik_pcie_gen3_enable()Jia-Ju Bai
cik_pcie_gen3_enable() is only called by cik_common_hw_init(), which is never called in atomic context. cik_pcie_gen3_enable() calls mdelay() to busily wait, which is not necessary. mdelay() can be replaced with msleep(). This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-25drm/amdgpu/gmc9: clarify GPUVM fault error messageAlex Deucher
The address printed is the actual address, not the page. Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-25drm/scheduler: remove sched field from the entityNayan Deshmukh
The scheduler of the entity is decided by the run queue on which it is queued. This patch avoids us the effort required to maintain a sync between rq and sched field when we start shifting entites among different rqs. Signed-off-by: Nayan Deshmukh <nayan26deshmukh@gmail.com> Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-25drm/scheduler: modify API to avoid redundancyNayan Deshmukh
entity has a scheduler field and we don't need the sched argument in any of the functions where entity is provided. Signed-off-by: Nayan Deshmukh <nayan26deshmukh@gmail.com> Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-25drm/amdgpu: reduce the number of placements for a BOChristian König
Make struct amdgpu_bo a bit smaller. 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>
2018-07-25drm/amdgpu: consistenly name amdgpu_bo_ functionsChristian König
Just rename functions, no functional change. 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>
2018-07-25MAINTAINERS: add entry for AMD PP codeChristian König
Add separate entry for the power managent code on AMD GPUs. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Rex Zhu <rezhu@amd.com> Reviewed-by: Evan Quan <evan.quan@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-25MAINTAINERS: Add separate section for DCChristian König
Note that Harry and Leo Li are maintainers for that stuff. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-25MAINTAINERS: add new TTM maintainersChristian König
Roger unfortunately doesn't work for AMD any longer. So add Rui and Jerry as co-maintainer as well. Signed-off-by: Christian König <christian.koenig@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-25drm/amdgpu: expose only the first UVD instance for nowChristian König
Going to completely rework the context to ring mapping with Nayan's GSoC work, but for now just stopping to expose the second UVD instance should do it. 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>
2018-07-25drm/amdgpu: clean up coding style a bitChristian König
No need to bitcast a boolean and even if we should use "!!" instead. 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>
2018-07-24drm/amd/display: DC 3.1.58Harry Wentland
Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-24drm/amd/display: separate dc_debug into dc_debug_options and dc_debug dataJun Lei
[why] confusing as to which part of debug is informational, and which part causes behavioral change Signed-off-by: Jun Lei <Jun.Lei@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-24drm/amd/display: Decouple aux from i2cBhawanpreet Lakha
[Why] Aux engine is created from i2caux layer. We want to remove this layer and use the engine directly. [How] Decouple aux engine from i2caux. Move aux engine related code to dce folder and use dc resource pool to manage the engine. And use the engine functions directly Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-24drm/amd/display: DPP CM ICSC AYCRCB8888 format supportvikrant mhaske
[why] Diags has POR to run the video workload using AYCRCB8888 through DCN; capture it through DWB and send it to VCN hardware to encode [how] added the code to support this format so that DPP ICSC will be able to convert it from YUV444 to internal RGB and DWB OCSC will be able to convert from internal RGB to YUV420 Signed-off-by: vikrant mhaske <vikrant.mhaske@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-24drm/amd/display: On dce100, set clocks to 0 on suspendDavid Francis
[Why] When a dce100 asic was suspended, the clocks were not set to 0. Upon resume, the new clock was compared to the existing clock, they were found to be the same, and so the clock was not set. This resulted in a pernicious blackscreen. [How] In atomic commit, check to see if there are any active pipes. If no, set clocks to 0 Signed-off-by: David Francis <David.Francis@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-24drm/amd/display: allow diags to skip initial link trainingTony Cheng
[why] diag specify what the full config and is only concerned about pass/fail at the end having inter-op code like verifiying we can actually train at reported link rate slows down diag test and add complexity we don't need [how] add dc_debug option to skip capability link trianing also remove hbr in function name as verify is not specific to hbr Signed-off-by: Tony Cheng <tony.cheng@amd.com> Reviewed-by: Ken Chalmers <ken.chalmers@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-24drm/amd/display: Remove unnecessary warningMikita Lipski
[why] The warning message floods the dmesg log on Tonga even though it is expected to have a pix_clk set to zero, when the pipe is not active. [how] remove the assert Signed-off-by: Mikita Lipski <mikita.lipski@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-24drm/amdgpu: move the amdgpu_fbdev_set_suspend() further upShirish S
This patch moves amdgpu_fbdev_set_suspend() to the beginning of suspend sequence. This is to ensure fbcon does not to write to the VRAM after GPU is powerd down. Signed-off-by: Shirish S <shirish.s@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-24drm/amdgpu: Don't warn on destroying a pinned BOMichel Dänzer
The warning turned out to be not so useful, as BO destruction tends to be deferred to a workqueue. Also, we should be preventing any damage from this now, so not really important anymore to fix code doing this. Acked-by: Alex Deucher <alexander.deucher@amd.com> Tested-by: Mike Lothian <mike@fireburn.co.uk> Signed-off-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-24drm/amd/powerplay: allow slow switch only if NBPState enabled v2Evan Quan
Otherwise there may be potential SMU performance issues. v2: fix commit description and coding style Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Rex Zhu <rex.zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-24drm/amd/powerplay: correct the argument for PPSMC_MSG_SetUclkFastSwitchEvan Quan
The argument was set wrongly. Fast/slow switch was asked when there is actually a slow/fast switch needed. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Rex Zhu <rex.zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-24drm/amd/powerplay: slow UCLK switch when multiple displays not in syncEvan Quan
Slow switch for UCLK when there is multiple displays and they are not in sync. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Rex Zhu <rex.zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-24drm/amdgpu: Fix RLC safe mode test in gfx_v9_0_enter_rlc_safe_modeMichel Dänzer
We were testing the register offset, instead of the value stored in the register, therefore always timing out the loop. This reduces suspend time of the system in the bug report below by ~600 ms. Cc: stable@vger.kernel.org Bugzilla: https://bugs.freedesktop.org/107277 Tested-by: Paul Menzel <pmenzel@molgen.mpg.de> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Signed-off-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-24drm/exynos/mixer: Remove unused local variable privKrzysztof Kozlowski
Remove local variable 'priv' to fix GCC warning: drivers/gpu/drm/exynos/exynos_mixer.c: In function 'mixer_initialize': drivers/gpu/drm/exynos/exynos_mixer.c:840:29: warning: variable 'priv' set but not used [-Wunused-but-set-variable] Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Inki Dae <inki.dae@samsung.com>
generated by cgit (git 2.34.1) at 2025-09-14 16:48:24 +0000