1/*
2 * Copyright 2022 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 */
23
24#include "amdgpu.h"
25#include "vcn_sw_ring.h"
26
27void vcn_dec_sw_ring_emit_fence(struct amdgpu_ring *ring, u64 addr,
28 u64 seq, uint32_t flags)
29{
30 WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
31
32 amdgpu_ring_write(ring, VCN_DEC_SW_CMD_FENCE);
33 amdgpu_ring_write(ring, v: addr);
34 amdgpu_ring_write(ring, upper_32_bits(addr));
35 amdgpu_ring_write(ring, v: seq);
36 amdgpu_ring_write(ring, VCN_DEC_SW_CMD_TRAP);
37}
38
39void vcn_dec_sw_ring_insert_end(struct amdgpu_ring *ring)
40{
41 amdgpu_ring_write(ring, VCN_DEC_SW_CMD_END);
42}
43
44void vcn_dec_sw_ring_emit_ib(struct amdgpu_ring *ring, struct amdgpu_job *job,
45 struct amdgpu_ib *ib, uint32_t flags)
46{
47 uint32_t vmid = AMDGPU_JOB_GET_VMID(job);
48
49 amdgpu_ring_write(ring, VCN_DEC_SW_CMD_IB);
50 amdgpu_ring_write(ring, v: vmid);
51 amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
52 amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
53 amdgpu_ring_write(ring, v: ib->length_dw);
54}
55
56void vcn_dec_sw_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg,
57 uint32_t val, uint32_t mask)
58{
59 amdgpu_ring_write(ring, VCN_DEC_SW_CMD_REG_WAIT);
60 amdgpu_ring_write(ring, v: reg << 2);
61 amdgpu_ring_write(ring, v: mask);
62 amdgpu_ring_write(ring, v: val);
63}
64
65void vcn_dec_sw_ring_emit_vm_flush(struct amdgpu_ring *ring,
66 uint32_t vmid, uint64_t pd_addr)
67{
68 struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->vm_hub];
69 uint32_t data0, data1, mask;
70
71 pd_addr = amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
72
73 /* wait for register write */
74 data0 = hub->ctx0_ptb_addr_lo32 + vmid * hub->ctx_addr_distance;
75 data1 = lower_32_bits(pd_addr);
76 mask = 0xffffffff;
77 vcn_dec_sw_ring_emit_reg_wait(ring, reg: data0, val: data1, mask);
78}
79
80void vcn_dec_sw_ring_emit_wreg(struct amdgpu_ring *ring, uint32_t reg,
81 uint32_t val)
82{
83 amdgpu_ring_write(ring, VCN_DEC_SW_CMD_REG_WRITE);
84 amdgpu_ring_write(ring, v: reg << 2);
85 amdgpu_ring_write(ring, v: val);
86}
87

source code of linux/drivers/gpu/drm/amd/amdgpu/vcn_sw_ring.c