From a67094432da75d2769e7c35323f26c6873908e6c Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 27 Jul 2017 15:30:27 -0400 Subject: [PATCH] drm/amdgpu/sdma4: drop hdp flush from wptr shadow update MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The wb buffer is in system memory, not vram so the flush is useless. Cc: Frank Min Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c index f970a4a6b666..587bf508c794 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c @@ -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); } } } -- 2.20.1