root/drivers/gpu/drm/lima/lima_sched.h

INCLUDED FROM

DEFINITIONS

1. lima_sched_pipe_mmu_error

   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 
   9 struct lima_vm;
  10 
  11 struct lima_sched_task {
  12         struct drm_sched_job base;
  13 
  14         struct lima_vm *vm;
  15         void *frame;
  16 
  17         struct xarray deps;
  18         unsigned long last_dep;
  19 
  20         struct lima_bo **bos;
  21         int num_bos;
  22 
  23         /* pipe fence */
  24         struct dma_fence *fence;
  25 };
  26 
  27 struct lima_sched_context {
  28         struct drm_sched_entity base;
  29 };
  30 
  31 #define LIMA_SCHED_PIPE_MAX_MMU       8
  32 #define LIMA_SCHED_PIPE_MAX_L2_CACHE  2
  33 #define LIMA_SCHED_PIPE_MAX_PROCESSOR 8
  34 
  35 struct lima_ip;
  36 
  37 struct lima_sched_pipe {
  38         struct drm_gpu_scheduler base;
  39 
  40         u64 fence_context;
  41         u32 fence_seqno;
  42         spinlock_t fence_lock;
  43 
  44         struct lima_sched_task *current_task;
  45         struct lima_vm *current_vm;
  46 
  47         struct lima_ip *mmu[LIMA_SCHED_PIPE_MAX_MMU];
  48         int num_mmu;
  49 
  50         struct lima_ip *l2_cache[LIMA_SCHED_PIPE_MAX_L2_CACHE];
  51         int num_l2_cache;
  52 
  53         struct lima_ip *processor[LIMA_SCHED_PIPE_MAX_PROCESSOR];
  54         int num_processor;
  55 
  56         struct lima_ip *bcast_processor;
  57         struct lima_ip *bcast_mmu;
  58 
  59         u32 done;
  60         bool error;
  61         atomic_t task;
  62 
  63         int frame_size;
  64         struct kmem_cache *task_slab;
  65 
  66         int (*task_validate)(struct lima_sched_pipe *pipe, struct lima_sched_task *task);
  67         void (*task_run)(struct lima_sched_pipe *pipe, struct lima_sched_task *task);
  68         void (*task_fini)(struct lima_sched_pipe *pipe);
  69         void (*task_error)(struct lima_sched_pipe *pipe);
  70         void (*task_mmu_error)(struct lima_sched_pipe *pipe);
  71 
  72         struct work_struct error_work;
  73 };
  74 
  75 int lima_sched_task_init(struct lima_sched_task *task,
  76                          struct lima_sched_context *context,
  77                          struct lima_bo **bos, int num_bos,
  78                          struct lima_vm *vm);
  79 void lima_sched_task_fini(struct lima_sched_task *task);
  80 
  81 int lima_sched_context_init(struct lima_sched_pipe *pipe,
  82                             struct lima_sched_context *context,
  83                             atomic_t *guilty);
  84 void lima_sched_context_fini(struct lima_sched_pipe *pipe,
  85                              struct lima_sched_context *context);
  86 struct dma_fence *lima_sched_context_queue_task(struct lima_sched_context *context,
  87                                                 struct lima_sched_task *task);
  88 
  89 int lima_sched_pipe_init(struct lima_sched_pipe *pipe, const char *name);
  90 void lima_sched_pipe_fini(struct lima_sched_pipe *pipe);
  91 void lima_sched_pipe_task_done(struct lima_sched_pipe *pipe);
  92 
  93 static inline void lima_sched_pipe_mmu_error(struct lima_sched_pipe *pipe)
  94 {
  95         pipe->error = true;
  96         pipe->task_mmu_error(pipe);
  97 }
  98 
  99 int lima_sched_slab_init(void);
 100 void lima_sched_slab_fini(void);
 101 
 102 #endif