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| author | Alex Deucher <[email protected]> | 2024-04-19 22:03:32 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2024-04-26 21:22:40 +0000 |
| commit | 497d7cee24572db59cbfc4875d0c9270cee01e7f (patch) | |
| tree | ade9390283896387d36cf46a31e5077309f9f70f /drivers/gpu/drm/amd/amdgpu/amdgpu.h | |
| parent | drm/amdgpu: update fw_share for VCN5 (diff) | |
| download | kernel-497d7cee24572db59cbfc4875d0c9270cee01e7f.tar.gz kernel-497d7cee24572db59cbfc4875d0c9270cee01e7f.zip | |
drm/amdgpu: add a spinlock to wb allocation
As we use wb slots more dynamically, we need to lock
access to avoid racing on allocation or free.
Reviewed-by: Shaoyun.liu <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index cac0ca64367b..f87d53e183c3 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -502,6 +502,7 @@ struct amdgpu_wb { uint64_t gpu_addr; u32 num_wb; /* Number of wb slots actually reserved for amdgpu. */ unsigned long used[DIV_ROUND_UP(AMDGPU_MAX_WB, BITS_PER_LONG)]; + spinlock_t lock; }; int amdgpu_device_wb_get(struct amdgpu_device *adev, u32 *wb); |