drm/amdgpu: Move old fence waiting before reservation lock is aquired v2

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Helps avoiding deadlock during GPU reset.
Added mutex to amdgpu_ctx to preserve order of fences on a ring.

v2:
Put waiting logic in a function in a seperate function in amdgpu_ctx.c

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Andrey Grodzovsky 2017-10-10 16:50:17 -04:00 • committed by Alex Deucher

parent ad864d2438

commit 0ae94444c0

3 changed files with 34 additions and 10 deletions

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4

drivers/gpu/drm/amd/amdgpu/amdgpu.h

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10

drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c

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30

drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c

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