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| author |   Tao Zhou <tao.zhou1@amd.com> | 2025-02-10 15:28:37 +0800 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2025-02-17 14:09:30 -0500 |
| commit | 8652920d2c00243e8a8ca91560a30488d95d9a1b (patch) | |
| tree | cad8dfb258ce2aed4acf7a90c804787812d22aeb /drivers/gpu/drm/amd/amdgpu/amdgpu_cper.h | |
| parent | drm/amd/pm: Limit jpeg rings as per max for jpeg_v_4_0_3 (diff) | |
| download | wireguard-linux-8652920d2c00243e8a8ca91560a30488d95d9a1b.tar.xz wireguard-linux-8652920d2c00243e8a8ca91560a30488d95d9a1b.zip | |
drm/amdgpu: add mutex lock for cper ring
Avoid the confliction between read and write of ring buffer.
Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_cper.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_cper.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cper.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_cper.h index add25975d4f6..d35d1ddac7cc 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cper.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cper.h @@ -64,6 +64,7 @@ struct amdgpu_cper { void *ring[CPER_MAX_ALLOWED_COUNT]; struct amdgpu_ring ring_buf; + struct mutex ring_lock; }; void amdgpu_cper_entry_fill_hdr(struct amdgpu_device *adev, |