On Wed, Oct 31, 2018 at 8:28 AM Rex Zhu wrote:
>
> Get the sdma index from sdma ring
>
> Signed-off-by: Rex Zhu
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c | 16
> drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h | 1 +
> 2 files changed, 17 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c
> index 0fb9907..99668a5 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_get_sdma_instance(struct amdgpu_ring *ring)
>
> return NULL;
> }
> +
> +int amdgpu_get_sdma_index(struct amdgpu_ring *ring, uint32_t *index)
For consistency with other files, call this function something like
amdgpu_sdma_get_index_from_ring(). We should also update
amdgpu_get_sdma_instance() to amdgpu_sdma_get_instance().
Alex
> +{
> + struct amdgpu_device *adev = ring->adev;
> + int i;
> +
> + for (i = 0; i < adev->sdma.num_instances; i++) {
> + if (ring == >sdma.instance[i].ring ||
> + ring == >sdma.instance[i].page) {
> + *index = i;
> + return 0;
> + }
> + }
> +
> + return -EINVAL;
> +}
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h
> index 237a357..92e5097 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h
> @@ -96,5 +96,6 @@ struct amdgpu_buffer_funcs {
>
> struct amdgpu_sdma_instance *
> amdgpu_get_sdma_instance(struct amdgpu_ring *ring);
> +int amdgpu_get_sdma_index(struct amdgpu_ring *ring, uint32_t *index);
>
> #endif
> --
> 1.9.1
>
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