From cbb7a239117d45d512fae1806cc7722f68c7b82f Mon Sep 17 00:00:00 2001 From: Leo Liu Date: Thu, 17 May 2018 13:37:50 -0400 Subject: drm/amdgpu: fix insert nop for UVD7 ring MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit NO_OP register should be writen to 0 Signed-off-by: Leo Liu Reviewed-by: Alex Deucher Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c index f9a5482101bc..57d32f21b3a6 100644 --- a/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c +++ b/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c @@ -1325,12 +1325,15 @@ static void uvd_v7_0_ring_emit_vm_flush(struct amdgpu_ring *ring, static void uvd_v7_0_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count) { - int i; struct amdgpu_device *adev = ring->adev; + int i; - for (i = 0; i < count; i++) - amdgpu_ring_write(ring, PACKET0(SOC15_REG_OFFSET(UVD, ring->me, mmUVD_NO_OP), 0)); + WARN_ON(ring->wptr % 2 || count % 2); + for (i = 0; i < count / 2; i++) { + amdgpu_ring_write(ring, PACKET0(SOC15_REG_OFFSET(UVD, ring->me, mmUVD_NO_OP), 0)); + amdgpu_ring_write(ring, 0); + } } static void uvd_v7_0_enc_ring_insert_end(struct amdgpu_ring *ring) @@ -1710,7 +1713,6 @@ const struct amd_ip_funcs uvd_v7_0_ip_funcs = { static const struct amdgpu_ring_funcs uvd_v7_0_ring_vm_funcs = { .type = AMDGPU_RING_TYPE_UVD, .align_mask = 0xf, - .nop = PACKET0(0x81ff, 0), .support_64bit_ptrs = false, .vmhub = AMDGPU_MMHUB, .get_rptr = uvd_v7_0_ring_get_rptr, -- cgit v1.2.3