drm/amdgpu/vcn: fix ref counting for ring based profile handling

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We need to make sure the workload profile ref counts are
balanced.  This isn't currently the case because we can
increment the count on submissions, but the decrement may
be delayed as work comes in.  Track when we enable the
workload profile so the references are balanced.

v2: switch to a mutex and active flag
v3: fix mutex init

Fixes: 1443dd3c67 ("drm/amd/pm: fix and simplify workload handling")
Cc: Yang Wang <kevinyang.wang@amd.com>
Cc: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Alex Deucher 2025-03-12 09:48:47 -04:00

parent 553673a3e1

commit ca6575a32a

4 changed files with 40 additions and 16 deletions

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1

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

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26

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

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3

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

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26

drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c

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