drm/amdgpu: Add helper function to get sdma index (f6cffc0d) · Commits · 戴 / test

Get the sdma index from ring v2: refine function name Reviewed-by:

drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c

+16 −0

Original line number	Diff line number	Diff line
		@@ -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;
		}

+1 −0

Original line number	Diff line number	Diff line
		@@ -95,5 +95,6 @@ struct amdgpu_buffer_funcs {

		struct amdgpu_sdma_instance *
		amdgpu_sdma_get_instance_from_ring(struct amdgpu_ring *ring);
		int amdgpu_sdma_get_index_from_ring(struct amdgpu_ring ring, uint32_t index);

		#endif