drivers/gpu/drm/lima/lima_sched.h

   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
 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