From e7501c34aa002e53f0128f685134eb550a74560d Mon Sep 17 00:00:00 2001 From: Leo Liu Date: Tue, 7 Feb 2017 11:52:00 -0500 Subject: [PATCH] drm/amdgpu: implement vcn start RB command Signed-off-by: Leo Liu Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c index 643e4cecc3f6..2fd60de1377e 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c @@ -488,6 +488,23 @@ static void vcn_v1_0_dec_ring_set_wptr(struct amdgpu_ring *ring) WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_WPTR), lower_32_bits(ring->wptr)); } +/** + * vcn_v1_0_dec_ring_insert_start - insert a start command + * + * @ring: amdgpu_ring pointer + * + * Write a start command to the ring. + */ +static void vcn_v1_0_dec_ring_insert_start(struct amdgpu_ring *ring) +{ + amdgpu_ring_write(ring, + PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0)); + amdgpu_ring_write(ring, 0); + amdgpu_ring_write(ring, + PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0)); + amdgpu_ring_write(ring, VCN_CMD_PACKET_START << 1); +} + /** * vcn_v1_0_dec_ring_emit_fence - emit an fence & trap command * @@ -683,7 +700,8 @@ static const struct amdgpu_ring_funcs vcn_v1_0_dec_ring_vm_funcs = { .emit_frame_size = 2 + /* vcn_v1_0_dec_ring_emit_hdp_invalidate */ 34 * AMDGPU_MAX_VMHUBS + /* vcn_v1_0_dec_ring_emit_vm_flush */ - 14 + 14, /* vcn_v1_0_dec_ring_emit_fence x2 vm fence */ + 14 + 14 + /* vcn_v1_0_dec_ring_emit_fence x2 vm fence */ + 4, .emit_ib_size = 8, /* vcn_v1_0_dec_ring_emit_ib */ .emit_ib = vcn_v1_0_dec_ring_emit_ib, .emit_fence = vcn_v1_0_dec_ring_emit_fence, @@ -692,6 +710,7 @@ static const struct amdgpu_ring_funcs vcn_v1_0_dec_ring_vm_funcs = { .test_ring = amdgpu_vcn_dec_ring_test_ring, .test_ib = amdgpu_vcn_dec_ring_test_ib, .insert_nop = amdgpu_ring_insert_nop, + .insert_start = vcn_v1_0_dec_ring_insert_start, .pad_ib = amdgpu_ring_generic_pad_ib, .begin_use = amdgpu_vcn_ring_begin_use, .end_use = amdgpu_vcn_ring_end_use, -- 2.20.1