1 /* SPDX-License-Identifier: GPL-2.0 OR MIT */
2 /* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
3
4 #ifndef __LIMA_SCHED_H__
5 #define __LIMA_SCHED_H__
6
7 #include <drm/gpu_scheduler.h>
8 #include <linux/list.h>
9 #include <linux/xarray.h>
10
11 struct lima_device;
12 struct lima_vm;
13
14 struct lima_sched_error_task {
15 struct list_head list;
16 void *data;
17 u32 size;
18 };
19
20 struct lima_sched_task {
21 struct drm_sched_job base;
22
23 struct lima_vm *vm;
24 void *frame;
25
26 struct xarray deps;
27 unsigned long last_dep;
28
29 struct lima_bo **bos;
30 int num_bos;
31
32 bool recoverable;
33 struct lima_bo *heap;
34
35 /* pipe fence */
36 struct dma_fence *fence;
37 };
38
39 struct lima_sched_context {
40 struct drm_sched_entity base;
41 };
42
43 #define LIMA_SCHED_PIPE_MAX_MMU 8
44 #define LIMA_SCHED_PIPE_MAX_L2_CACHE 2
45 #define LIMA_SCHED_PIPE_MAX_PROCESSOR 8
46
47 struct lima_ip;
48
49 struct lima_sched_pipe {
50 struct drm_gpu_scheduler base;
51
52 u64 fence_context;
53 u32 fence_seqno;
54 spinlock_t fence_lock;
55
56 struct lima_device *ldev;
57
58 struct lima_sched_task *current_task;
59 struct lima_vm *current_vm;
60
61 struct lima_ip *mmu[LIMA_SCHED_PIPE_MAX_MMU];
62 int num_mmu;
63
64 struct lima_ip *l2_cache[LIMA_SCHED_PIPE_MAX_L2_CACHE];
65 int num_l2_cache;
66
67 struct lima_ip *processor[LIMA_SCHED_PIPE_MAX_PROCESSOR];
68 int num_processor;
69
70 struct lima_ip *bcast_processor;
71 struct lima_ip *bcast_mmu;
72
73 u32 done;
74 bool error;
75 atomic_t task;
76
77 int frame_size;
78 struct kmem_cache *task_slab;
79
80 int (*task_validate)(struct lima_sched_pipe *pipe, struct lima_sched_task *task);
81 void (*task_run)(struct lima_sched_pipe *pipe, struct lima_sched_task *task);
82 void (*task_fini)(struct lima_sched_pipe *pipe);
83 void (*task_error)(struct lima_sched_pipe *pipe);
84 void (*task_mmu_error)(struct lima_sched_pipe *pipe);
85 int (*task_recover)(struct lima_sched_pipe *pipe);
86
87 struct work_struct recover_work;
88 };
89
90 int lima_sched_task_init(struct lima_sched_task *task,
91 struct lima_sched_context *context,
92 struct lima_bo **bos, int num_bos,
93 struct lima_vm *vm);
94 void lima_sched_task_fini(struct lima_sched_task *task);
95
96 int lima_sched_context_init(struct lima_sched_pipe *pipe,
97 struct lima_sched_context *context,
98 atomic_t *guilty);
99 void lima_sched_context_fini(struct lima_sched_pipe *pipe,
100 struct lima_sched_context *context);
101 struct dma_fence *lima_sched_context_queue_task(struct lima_sched_context *context,
102 struct lima_sched_task *task);
103
104 int lima_sched_pipe_init(struct lima_sched_pipe *pipe, const char *name);
105 void lima_sched_pipe_fini(struct lima_sched_pipe *pipe);
106 void lima_sched_pipe_task_done(struct lima_sched_pipe *pipe);
107
lima_sched_pipe_mmu_error(struct lima_sched_pipe * pipe)108 static inline void lima_sched_pipe_mmu_error(struct lima_sched_pipe *pipe)
109 {
110 pipe->error = true;
111 pipe->task_mmu_error(pipe);
112 }
113
114 int lima_sched_slab_init(void);
115 void lima_sched_slab_fini(void);
116
117 #endif
118
