diff options
| author | Rex Zhu <Rex.Zhu@amd.com> | 2016-05-12 13:27:28 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-05-13 14:30:22 -0400 |
| commit | d573de2d00835e38cef1fb4bff7b49c174c68941 (patch) | |
| tree | cb84cee91af7122f9503796aa5b390d47b83d999 /drivers/gpu/drm/amd/amdgpu/amdgpu.h | |
| parent | 8b41e7a03a306d93276f91c1dae39dc51a1af58d (diff) | |
| download | lwn-d573de2d00835e38cef1fb4bff7b49c174c68941.tar.gz lwn-d573de2d00835e38cef1fb4bff7b49c174c68941.zip | |
drm/amdgpu: create fence slab once when amdgpu module init.
This avoids problems with multiple GPUs. For example,
if the first GPU failed before amdgpu_fence_init() was
called, amdgpu_fence_slab_ref is still 0 and it will
get decremented in amdgpu_fence_driver_fini(). This
will lead to a crash during init of the second GPU since
amdgpu_fence_slab_ref is not 0.
v2: add functions for init/exit instead of
moving the variables into the driver.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 2a009c398dcb..992f00b65be4 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -602,6 +602,8 @@ int amdgpu_sync_wait(struct amdgpu_sync *sync); void amdgpu_sync_free(struct amdgpu_sync *sync); int amdgpu_sync_init(void); void amdgpu_sync_fini(void); +int amdgpu_fence_slab_init(void); +void amdgpu_fence_slab_fini(void); /* * GART structures, functions & helpers |