linux/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c, branch v5.6

drm/amd/amdgpu: Fix GPR read from debugfs (v2)

2020-03-13T13:20:31Z

The offset into the array was specified in bytes but should be in terms of 32-bit words. Also prevent large reads that would also cause a buffer overread. v2: Read from correct offset from internal storage buffer. Signed-off-by: Tom St Denis Acked-by: Christian König Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org

drm/amdgpu/debugfs: properly handle runtime pm

2020-01-14T15:20:34Z

If driver debugfs files are accessed, power up the GPU when necessary. Reviewed-by: Evan Quan Signed-off-by: Alex Deucher

drm/amdgpu: use true, false for bool variable in amdgpu_debugfs.c

2019-12-23T20:00:01Z

Fixes coccicheck warning: drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:132:2-10: WARNING: Assignment of 0/1 to bool variable drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:140:2-10: WARNING: Assignment of 0/1 to bool variable drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:142:13-21: WARNING: Assignment of 0/1 to bool variable Reported-by: Hulk Robot Signed-off-by: zhengbin Signed-off-by: Alex Deucher

drm/amdgpu: Avoid accidental thread reactivation.

2019-11-07T23:08:07Z

Problem: During GPU reset we call the GPU scheduler to suspend it's thread, those two functions in amdgpu also suspend and resume the sceduler for their needs but this can collide with GPU reset in progress and accidently restart a suspended thread before time. Fix: Serialize with GPU reset. Signed-off-by: Andrey Grodzovsky Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/amdgpu: Remove superfluous void * cast in debugfs_create_file() call

2019-10-30T15:06:51Z

There is no need to cast a typed pointer to a void pointer when calling a function that accepts the latter. Remove it, as the cast prevents further compiler checks. Signed-off-by: Geert Uytterhoeven Signed-off-by: Alex Deucher

drm/amdgpu: remove the redundant null checks

2019-09-16T15:42:56Z

debugfs_remove and kfree has taken the null check in account. hence it is unnecessary to check it. Just remove the condition. No functional change. This issue was detected by using the Coccinelle software. Signed-off-by: zhong jiang Signed-off-by: Alex Deucher

drm/amdgpu: fix a potential information leaking bug

2019-07-31T06:26:09Z

Coccinelle reports a path that the array "data" is never initialized. The path skips the checks in the conditional branches when either of callback functions, read_wave_vgprs and read_wave_sgprs, is not registered. Later, the uninitialized "data" array is read in the while-loop below and passed to put_user(). Fix the path by allocating the array with kcalloc(). The patch is simplier than adding a fall-back branch that explicitly calls memset(data, 0, ...). Also it does not need the multiplication 1024*sizeof(*data) as the size parameter for memset() though there is no risk of integer overflow. Signed-off-by: Wang Xiayang Reviewed-by: Chunming Zhou Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/amd/amdgpu: Fix offset for vmid selection in debugfs interface

2019-07-17T18:34:30Z

The register debugfs interface was using the wrong bitmask for vmid selection for GFX_CNTL. Signed-off-by: Tom St Denis Acked-by: Christian König Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amd/amdgpu: Add VMID to SRBM debugfs bank selection

2019-07-16T18:08:38Z

Add 5 bits to the offset for SRBM selection to handle VMIDs. Also update the select_me_pipe_q() callback to also select VMID. Signed-off-by: Tom St Denis Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

Merge branch 'drm-next' into drm-next-5.3

2019-06-25T13:42:25Z

Backmerge drm-next and fix up conflicts due to drmP.h removal. Signed-off-by: Alex Deucher