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 
35 struct amdgpu_bo_va_mapping;
36 
37 struct amdgpu_cs_chunk {
38 	uint32_t		chunk_id;
39 	uint32_t		length_dw;
40 	void			*kdata;
41 };
42 
43 struct amdgpu_cs_post_dep {
44 	struct drm_syncobj *syncobj;
45 	struct dma_fence_chain *chain;
46 	u64 point;
47 };
48 
49 struct 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 
84 int 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