Commit 4b2f7e2c authored by Jammy Zhou's avatar Jammy Zhou Committed by Alex Deucher

drm/amdgpu: add amdgpu_get_sdma_instance helper function

This function is added to map the ring to sdma instance
Signed-off-by: default avatarJammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 36f523a7
......@@ -2199,6 +2199,21 @@ static inline void amdgpu_ring_write(struct amdgpu_ring *ring, uint32_t v)
ring->ring_free_dw--;
}
static inline struct amdgpu_sdma * amdgpu_get_sdma_instance(struct amdgpu_ring *ring)
{
struct amdgpu_device *adev = ring->adev;
int i;
for (i = 0; i < AMDGPU_MAX_SDMA_INSTANCES; i++)
if (&adev->sdma[i].ring == ring)
break;
if (i < AMDGPU_MAX_SDMA_INSTANCES)
return &adev->sdma[i];
else
return NULL;
}
/*
* ASICs macro.
*/
......
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