From: Monk Liu Date: Wed, 8 Feb 2017 08:51:06 +0000 (+0800) Subject: drm/amdgpu:use clear_ring to clr RB X-Git-Tag: v5.15~11060^2~26^2~255 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f6bd79424cd02f5726c294916d9afb3cf031080c;p=platform%2Fkernel%2Flinux-starfive.git drm/amdgpu:use clear_ring to clr RB In resume routine, we need clr RB prior to the ring test of engine, otherwise some engine hang duplicated during GPU reset. Signed-off-by: Monk Liu Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c index 7c842b7..cead88a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c @@ -230,7 +230,7 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring, dev_err(adev->dev, "(%d) ring create failed\n", r); return r; } - memset((void *)ring->ring, 0, ring->ring_size); + amdgpu_ring_clear_ring(ring); } ring->ptr_mask = (ring->ring_size / 4) - 1; ring->max_dw = max_dw; diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c index b2bfee3..e09dd5e 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c @@ -4515,6 +4515,7 @@ static int gfx_v8_0_cp_gfx_resume(struct amdgpu_device *adev) } /* start the ring */ + amdgpu_ring_clear_ring(ring); gfx_v8_0_cp_gfx_start(adev); ring->ready = true; r = amdgpu_ring_test_ring(ring); diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c index 47e6f14..1ac876f 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c @@ -615,6 +615,7 @@ static int sdma_v3_0_gfx_resume(struct amdgpu_device *adev) for (i = 0; i < adev->sdma.num_instances; i++) { ring = &adev->sdma.instance[i].ring; + amdgpu_ring_clear_ring(ring); wb_offset = (ring->rptr_offs * 4); mutex_lock(&adev->srbm_mutex);