diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c index c91223021ab4..115bb0c99b0f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c @@ -40,3 +40,19 @@ struct amdgpu_sdma_instance *amdgpu_sdma_get_instance_from_ring(struct amdgpu_ri return NULL; } + +int amdgpu_sdma_get_index_from_ring(struct amdgpu_ring *ring, uint32_t *index) +{ + struct amdgpu_device *adev = ring->adev; + int i; + + for (i = 0; i < adev->sdma.num_instances; i++) { + if (ring == &adev->sdma.instance[i].ring || + ring == &adev->sdma.instance[i].page) { + *index = i; + return 0; + } + } + + return -EINVAL; +} |