user/sven/linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c, branch v5.10.67

drm/amdgpu: fix parameter error of RREG32_PCIE() in amdgpu_regs_pcie

2021-03-09T10:11:13Z

commit 1aa46901ee51c1c5779b3b239ea0374a50c6d9ff upstream. the register offset isn't needed division by 4 to pass RREG32_PCIE() Signed-off-by: Kevin Wang Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman

drm/amdgpu: support indirect access reg outside of mmio bar (v2)

2020-10-01T14:42:55Z

support both direct and indirect accessor in unified helper functions. v2: Retire indirect mmio access via mm_index/data Signed-off-by: Hawking Zhang Reviewed-by: Christian König Reviewed-by: Alex Deucher Reviewed-by: Kevin Wang Reviewed-by: Guchun Chen Signed-off-by: Alex Deucher

drm/amdgpu: Get DRM dev from adev by inline-f

2020-08-24T17:06:06Z

Add a static inline adev_to_drm() to obtain the DRM device pointer from an amdgpu_device pointer. Signed-off-by: Luben Tuikov Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: drm_device to amdgpu_device by inline-f (v2)

2020-08-24T17:06:06Z

Get the amdgpu_device from the DRM device by use of an inline function, drm_to_adev(). The inline function resolves a pointer to struct drm_device to a pointer to struct amdgpu_device. v2: Use a typed visible static inline function instead of an invisible macro. Signed-off-by: Luben Tuikov Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: change reset lock from mutex to rw_semaphore

2020-08-24T16:23:48Z

clients don't need reset-lock for synchronization when no GPU recovery. v2: change to return the return value of down_read_killable. v3: if GPU recovery begin, VF ignore FLR notification. Reviewed-by: Monk Liu Acked-by: Christian König Signed-off-by: Dennis Li Signed-off-by: Alex Deucher

drm/amdgpu: refine codes to avoid reentering GPU recovery

2020-08-24T16:22:56Z

if other threads have holden the reset lock, recovery will fail to try_lock. Therefore we introduce atomic hive->in_reset and adev->in_gpu_reset, to avoid reentering GPU recovery. v2: drop "? true : false" in the definition of amdgpu_in_reset Reviewed-by: Hawking Zhang Signed-off-by: Dennis Li Signed-off-by: Alex Deucher

drm/amdgpu: revert "fix system hang issue during GPU reset"

2020-08-14T20:22:40Z

The whole approach wasn't thought through till the end. We already had a reset lock like this in the past and it caused the same problems like this one. Completely revert the patch for now and add individual trylock protection to the hardware access functions as necessary. This reverts commit df9c8d1aa278c435c30a69b8f2418b4a52fcb929. Signed-off-by: Christian König Acked-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: add debugfs interface for RAP test

2020-08-14T20:22:40Z

After amdgpu driver loading successfully, we can use RAP debugfs interface /dri/xxx/rap_test to trigger RAP test. Currently only L0 validate test is supported. v2: refine amdgpu_rap.h Signed-off-by: Wenhui Sheng Reviewed-by: Guchun Chen Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher

drm/amdgpu: fix system hang issue during GPU reset

2020-07-27T20:21:37Z

when GPU hang, driver has multi-paths to enter amdgpu_device_gpu_recover, the atomic adev->in_gpu_reset and hive->in_reset are used to avoid re-entering GPU recovery. During GPU reset and resume, it is unsafe that other threads access GPU, which maybe cause GPU reset failed. Therefore the new rw_semaphore adev->reset_sem is introduced, which protect GPU from being accessed by external threads during recovery. v2: 1. add rwlock for some ioctls, debugfs and file-close function. 2. change to use dqm->is_resetting and dqm_lock for protection in kfd driver. 3. remove try_lock and change adev->in_gpu_reset as atomic, to avoid re-enter GPU recovery for the same GPU hang. v3: 1. change back to use adev->reset_sem to protect kfd callback functions, because dqm_lock couldn't protect all codes, for example: free_mqd must be called outside of dqm_lock; [ 1230.176199] Hardware name: Supermicro SYS-7049GP-TRT/X11DPG-QT, BIOS 3.1 05/23/2019 [ 1230.177221] Call Trace: [ 1230.178249] dump_stack+0x98/0xd5 [ 1230.179443] amdgpu_virt_kiq_reg_write_reg_wait+0x181/0x190 [amdgpu] [ 1230.180673] gmc_v9_0_flush_gpu_tlb+0xcc/0x310 [amdgpu] [ 1230.181882] amdgpu_gart_unbind+0xa9/0xe0 [amdgpu] [ 1230.183098] amdgpu_ttm_backend_unbind+0x46/0x180 [amdgpu] [ 1230.184239] ? ttm_bo_put+0x171/0x5f0 [ttm] [ 1230.185394] ttm_tt_unbind+0x21/0x40 [ttm] [ 1230.186558] ttm_tt_destroy.part.12+0x12/0x60 [ttm] [ 1230.187707] ttm_tt_destroy+0x13/0x20 [ttm] [ 1230.188832] ttm_bo_cleanup_memtype_use+0x36/0x80 [ttm] [ 1230.189979] ttm_bo_put+0x1be/0x5f0 [ttm] [ 1230.191230] amdgpu_bo_unref+0x1e/0x30 [amdgpu] [ 1230.192522] amdgpu_amdkfd_free_gtt_mem+0xaf/0x140 [amdgpu] [ 1230.193833] free_mqd+0x25/0x40 [amdgpu] [ 1230.195143] destroy_queue_cpsch+0x1a7/0x270 [amdgpu] [ 1230.196475] pqm_destroy_queue+0x105/0x260 [amdgpu] [ 1230.197819] kfd_ioctl_destroy_queue+0x37/0x70 [amdgpu] [ 1230.199154] kfd_ioctl+0x277/0x500 [amdgpu] [ 1230.200458] ? kfd_ioctl_get_clock_counters+0x60/0x60 [amdgpu] [ 1230.201656] ? tomoyo_file_ioctl+0x19/0x20 [ 1230.202831] ksys_ioctl+0x98/0xb0 [ 1230.204004] __x64_sys_ioctl+0x1a/0x20 [ 1230.205174] do_syscall_64+0x5f/0x250 [ 1230.206339] entry_SYSCALL_64_after_hwframe+0x49/0xbe 2. remove try_lock and introduce atomic hive->in_reset, to avoid re-enter GPU recovery. v4: 1. remove an unnecessary whitespace change in kfd_chardev.c 2. remove comment codes in amdgpu_device.c 3. add more detailed comment in commit message 4. define a wrap function amdgpu_in_reset v5: 1. Fix some style issues. Reviewed-by: Hawking Zhang Suggested-by: Andrey Grodzovsky Suggested-by: Christian König Suggested-by: Felix Kuehling Suggested-by: Lijo Lazar Suggested-by: Luben Tukov Signed-off-by: Dennis Li Signed-off-by: Alex Deucher

drm/amdgpu: add read amdgpu_gfxoff status in debugfs

2020-07-21T19:37:37Z

Add interface for SMU12 device, used by UMR. v2: fix code style Signed-off-by: Jinzhou.Su Reviewed-by: Evan Quan Reviewed-by: Huang Rui Signed-off-by: Alex Deucher