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#ifndef __AMDGPU_CS_H__
24#define __AMDGPU_CS_H__
25
26#include <linux/ww_mutex.h>
27#include <drm/drm_exec.h>
28
29#include "amdgpu_job.h"
30#include "amdgpu_bo_list.h"
31#include "amdgpu_ring.h"
32
33#define AMDGPU_CS_GANG_SIZE 4
34
35struct amdgpu_bo_va_mapping;
36
37struct amdgpu_cs_chunk {
38 uint32_t chunk_id;
39 uint32_t length_dw;
40 void *kdata;
41};
42
43struct amdgpu_cs_post_dep {
44 struct drm_syncobj *syncobj;
45 struct dma_fence_chain *chain;
46 u64 point;
47};
48
49struct amdgpu_cs_parser {
50 struct amdgpu_device *adev;
51 struct drm_file *filp;
52 struct amdgpu_ctx *ctx;
53
54 /* chunks */
55 unsigned nchunks;
56 struct amdgpu_cs_chunk *chunks;
57
58 /* scheduler job objects */
59 unsigned int gang_size;
60 unsigned int gang_leader_idx;
61 struct drm_sched_entity *entities[AMDGPU_CS_GANG_SIZE];
62 struct amdgpu_job *jobs[AMDGPU_CS_GANG_SIZE];
63 struct amdgpu_job *gang_leader;
64
65 /* buffer objects */
66 struct drm_exec exec;
67 struct amdgpu_bo_list *bo_list;
68 struct amdgpu_mn *mn;
69 struct dma_fence *fence;
70 uint64_t bytes_moved_threshold;
71 uint64_t bytes_moved_vis_threshold;
72 uint64_t bytes_moved;
73 uint64_t bytes_moved_vis;
74
75 /* user fence */
76 struct amdgpu_bo *uf_bo;
77
78 unsigned num_post_deps;
79 struct amdgpu_cs_post_dep *post_deps;
80
81 struct amdgpu_sync sync;
82};
83
84int amdgpu_cs_find_mapping(struct amdgpu_cs_parser *parser,
85 uint64_t addr, struct amdgpu_bo **bo,
86 struct amdgpu_bo_va_mapping **mapping);
87
88#endif
89

source code of linux/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.h