drm/amdgpu: fix fairness in enforce isolation handling

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Make sure KFD gets a turn when serializing access to
the GC IP.  Currently non-KFD jobs can starve KFD if they
submit often enough.  This patch prevents that by stalling
non-KFD if its time period has elapsed.

v2: fix units
v3: check enablement properly

Acked-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Alex Deucher 2024-10-14 11:58:34 -04:00

parent 5fd95dab60

commit efe6a87743

3 changed files with 54 additions and 3 deletions

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2

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

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53

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

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2

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

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