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drm/amdgpu: add basics for SDMA page queue support 

Just the common helper and a new ring in the SDMA instance.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2018-10-04 16:22:41 +02:00 committed by Alex Deucher
parent 51235849d9
commit 9194a33903
2 changed files with 5 additions and 6 deletions
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8
drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c
View File

@ -34,11 +34,9 @@ struct amdgpu_sdma_instance * amdgpu_get_sdma_instance(struct amdgpu_ring *ring)
int i;
for (i = 0; i < adev->sdma.num_instances; i++)
if (&adev->sdma.instance[i].ring == ring)
break;
if (i < AMDGPU_MAX_SDMA_INSTANCES)
if (ring == &adev->sdma.instance[i].ring ||
ring == &adev->sdma.instance[i].page)
return &adev->sdma.instance[i];
else
return NULL;
}

1
drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h
View File

@ -41,6 +41,7 @@ struct amdgpu_sdma_instance {
uint32_t feature_version;
struct amdgpu_ring ring;
struct amdgpu_ring page;
bool burst_nop;
};