drm/amdgpu: add ring test for page queue

We add page queue for sdma to update page table. So here it also needs ring test
to verify it workable during the initialization.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
index 6367a813316866a966c2020812162898d04fb5f8..dc0e8053a4774010b7459583636f885a583d479c 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
@@ -1150,6 +1150,15 @@ static int sdma_v4_0_start(struct amdgpu_device *adev)
                        return r;
                }
 
+               if (adev->sdma.has_page_queue) {
+                       ring = &adev->sdma.instance[i].page;
+                       r = amdgpu_ring_test_ring(ring);
+                       if (r) {
+                               ring->ready = false;
+                               return r;
+                       }
+               }
+
                if (adev->mman.buffer_funcs_ring == ring)
                        amdgpu_ttm_set_buffer_funcs_status(adev, true);
        }