From f2dfc71461d4a2b779f56ccfcf295bad73cc1e41 Mon Sep 17 00:00:00 2001 From: Leo Liu Date: Thu, 17 May 2018 13:54:21 -0400 Subject: [PATCH 4484/5725] drm/amdgpu: fix insert nop for UVD4.2 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 --- drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c b/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c index 4ee0c10..d2f6caa 100644 --- a/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c +++ b/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c @@ -550,6 +550,18 @@ static void uvd_v4_2_ring_emit_ib(struct amdgpu_ring *ring, amdgpu_ring_write(ring, ib->length_dw); } +static void uvd_v4_2_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count) +{ + int i; + + WARN_ON(ring->wptr % 2 || count % 2); + + for (i = 0; i < count / 2; i++) { + amdgpu_ring_write(ring, PACKET0(mmUVD_NO_OP, 0)); + amdgpu_ring_write(ring, 0); + } +} + /** * uvd_v4_2_mc_resume - memory controller programming * @@ -759,7 +771,6 @@ static const struct amd_ip_funcs uvd_v4_2_ip_funcs = { static const struct amdgpu_ring_funcs uvd_v4_2_ring_funcs = { .type = AMDGPU_RING_TYPE_UVD, .align_mask = 0xf, - .nop = PACKET0(mmUVD_NO_OP, 0), .support_64bit_ptrs = false, .get_rptr = uvd_v4_2_ring_get_rptr, .get_wptr = uvd_v4_2_ring_get_wptr, @@ -776,7 +787,7 @@ static const struct amdgpu_ring_funcs uvd_v4_2_ring_funcs = { .emit_hdp_invalidate = uvd_v4_2_ring_emit_hdp_invalidate, .test_ring = uvd_v4_2_ring_test_ring, .test_ib = amdgpu_uvd_ring_test_ib, - .insert_nop = amdgpu_ring_insert_nop, + .insert_nop = uvd_v4_2_ring_insert_nop, .pad_ib = amdgpu_ring_generic_pad_ib, .begin_use = amdgpu_uvd_ring_begin_use, .end_use = amdgpu_uvd_ring_end_use, -- 2.7.4