From: Leo Liu Date: Thu, 17 May 2018 17:31:49 +0000 (-0400) Subject: drm/amdgpu: fix insert nop for VCN decode ring X-Git-Tag: v5.15~8594^2~6^2~30 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6ee21dbfe9a79edf6f09d5f3ab1f3c4f0699dbf2;p=platform%2Fkernel%2Flinux-starfive.git drm/amdgpu: fix insert nop for VCN decode ring 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 --- diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c index 0501746b..7fbbdb1 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c @@ -1048,14 +1048,17 @@ static int vcn_v1_0_process_interrupt(struct amdgpu_device *adev, return 0; } -static void vcn_v1_0_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count) +static void vcn_v1_0_dec_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, 0, 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, 0, mmUVD_NO_OP), 0)); + amdgpu_ring_write(ring, 0); + } } @@ -1082,7 +1085,6 @@ static const struct amd_ip_funcs vcn_v1_0_ip_funcs = { static const struct amdgpu_ring_funcs vcn_v1_0_dec_ring_vm_funcs = { .type = AMDGPU_RING_TYPE_VCN_DEC, .align_mask = 0xf, - .nop = PACKET0(0x81ff, 0), .support_64bit_ptrs = false, .vmhub = AMDGPU_MMHUB, .get_rptr = vcn_v1_0_dec_ring_get_rptr, @@ -1101,7 +1103,7 @@ static const struct amdgpu_ring_funcs vcn_v1_0_dec_ring_vm_funcs = { .emit_vm_flush = vcn_v1_0_dec_ring_emit_vm_flush, .test_ring = amdgpu_vcn_dec_ring_test_ring, .test_ib = amdgpu_vcn_dec_ring_test_ib, - .insert_nop = vcn_v1_0_ring_insert_nop, + .insert_nop = vcn_v1_0_dec_ring_insert_nop, .insert_start = vcn_v1_0_dec_ring_insert_start, .insert_end = vcn_v1_0_dec_ring_insert_end, .pad_ib = amdgpu_ring_generic_pad_ib,