1/* SPDX-License-Identifier: MIT */
2
3#ifndef NOUVEAU_SCHED_H
4#define NOUVEAU_SCHED_H
5
6#include <linux/types.h>
7
8#include <drm/drm_gpuvm.h>
9#include <drm/gpu_scheduler.h>
10
11#include "nouveau_drv.h"
12
13#define to_nouveau_job(sched_job) \
14 container_of((sched_job), struct nouveau_job, base)
15
16struct nouveau_job_ops;
17
18enum nouveau_job_state {
19 NOUVEAU_JOB_UNINITIALIZED = 0,
20 NOUVEAU_JOB_INITIALIZED,
21 NOUVEAU_JOB_SUBMIT_SUCCESS,
22 NOUVEAU_JOB_SUBMIT_FAILED,
23 NOUVEAU_JOB_RUN_SUCCESS,
24 NOUVEAU_JOB_RUN_FAILED,
25};
26
27struct nouveau_job_args {
28 struct drm_file *file_priv;
29 struct nouveau_sched *sched;
30 u32 credits;
31
32 enum dma_resv_usage resv_usage;
33 bool sync;
34
35 struct {
36 struct drm_nouveau_sync *s;
37 u32 count;
38 } in_sync;
39
40 struct {
41 struct drm_nouveau_sync *s;
42 u32 count;
43 } out_sync;
44
45 struct nouveau_job_ops *ops;
46};
47
48struct nouveau_job {
49 struct drm_sched_job base;
50
51 enum nouveau_job_state state;
52
53 struct nouveau_sched *sched;
54 struct list_head entry;
55
56 struct drm_file *file_priv;
57 struct nouveau_cli *cli;
58
59 enum dma_resv_usage resv_usage;
60 struct dma_fence *done_fence;
61
62 bool sync;
63
64 struct {
65 struct drm_nouveau_sync *data;
66 u32 count;
67 } in_sync;
68
69 struct {
70 struct drm_nouveau_sync *data;
71 struct drm_syncobj **objs;
72 struct dma_fence_chain **chains;
73 u32 count;
74 } out_sync;
75
76 struct nouveau_job_ops {
77 /* If .submit() returns without any error, it is guaranteed that
78 * armed_submit() is called.
79 */
80 int (*submit)(struct nouveau_job *, struct drm_gpuvm_exec *);
81 void (*armed_submit)(struct nouveau_job *, struct drm_gpuvm_exec *);
82 struct dma_fence *(*run)(struct nouveau_job *);
83 void (*free)(struct nouveau_job *);
84 enum drm_gpu_sched_stat (*timeout)(struct nouveau_job *);
85 } *ops;
86};
87
88int nouveau_job_ucopy_syncs(struct nouveau_job_args *args,
89 u32 inc, u64 ins,
90 u32 outc, u64 outs);
91
92int nouveau_job_init(struct nouveau_job *job,
93 struct nouveau_job_args *args);
94void nouveau_job_fini(struct nouveau_job *job);
95int nouveau_job_submit(struct nouveau_job *job);
96void nouveau_job_done(struct nouveau_job *job);
97void nouveau_job_free(struct nouveau_job *job);
98
99struct nouveau_sched {
100 struct drm_gpu_scheduler base;
101 struct drm_sched_entity entity;
102 struct workqueue_struct *wq;
103 struct mutex mutex;
104
105 struct {
106 struct {
107 struct list_head head;
108 spinlock_t lock;
109 } list;
110 struct wait_queue_head wq;
111 } job;
112};
113
114int nouveau_sched_create(struct nouveau_sched **psched, struct nouveau_drm *drm,
115 struct workqueue_struct *wq, u32 credit_limit);
116void nouveau_sched_destroy(struct nouveau_sched **psched);
117
118#endif
119

source code of linux/drivers/gpu/drm/nouveau/nouveau_sched.h