Commit a6709443 authored Jul 27, 2017 by Alex Deucher

drm/amdgpu/sdma4: drop hdp flush from wptr shadow update



The wb buffer is in system memory, not vram so the flush
is useless.

Cc: Frank Min <Frank.Min@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent 575a07d2

drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c

+0 −1

Original line number	Diff line number	Diff line
		@@ -313,7 +313,6 @@ static void sdma_v4_0_ring_set_wptr(struct amdgpu_ring *ring)
		offset = adev->sdma.instance[i].poll_mem_offs;
		atomic64_set((atomic64_t *)&adev->wb.wb[offset],
		(ring->wptr << 2));
		nbio_v6_1_hdp_flush(adev);
		}
		}
		}