drm/amd/pm: fix the deadlock observed on performance_level setting

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The sub-routine(amdgpu_gfx_off_ctrl) tried to obtain the lock
adev->pm.mutex which was actually hold by amdgpu_dpm_force_performance_level.
A deadlock happened then.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Evan Quan 2022-01-25 16:09:00 +08:00 • committed by Alex Deucher

parent f4e2a66dae

commit 75513bf5d7

1 changed files with 17 additions and 33 deletions

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drivers/gpu/drm/amd/pm/amdgpu_dpm.c

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