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 lima_bo **bos; 27 int num_bos; 28 29 bool recoverable; 30 struct lima_bo *heap; 31 32 /* pipe fence */ 33 struct dma_fence *fence; 34 }; 35 36 struct lima_sched_context { 37 struct drm_sched_entity base; 38 }; 39 40 #define LIMA_SCHED_PIPE_MAX_MMU 8 41 #define LIMA_SCHED_PIPE_MAX_L2_CACHE 2 42 #define LIMA_SCHED_PIPE_MAX_PROCESSOR 8 43 44 struct lima_ip; 45 46 struct lima_sched_pipe { 47 struct drm_gpu_scheduler base; 48 49 u64 fence_context; 50 u32 fence_seqno; 51 spinlock_t fence_lock; 52 53 struct lima_device *ldev; 54 55 struct lima_sched_task *current_task; 56 struct lima_vm *current_vm; 57 58 struct lima_ip *mmu[LIMA_SCHED_PIPE_MAX_MMU]; 59 int num_mmu; 60 61 struct lima_ip *l2_cache[LIMA_SCHED_PIPE_MAX_L2_CACHE]; 62 int num_l2_cache; 63 64 struct lima_ip *processor[LIMA_SCHED_PIPE_MAX_PROCESSOR]; 65 int num_processor; 66 67 struct lima_ip *bcast_processor; 68 struct lima_ip *bcast_mmu; 69 70 u32 done; 71 bool error; 72 atomic_t task; 73 74 int frame_size; 75 struct kmem_cache *task_slab; 76 77 int (*task_validate)(struct lima_sched_pipe *pipe, struct lima_sched_task *task); 78 void (*task_run)(struct lima_sched_pipe *pipe, struct lima_sched_task *task); 79 void (*task_fini)(struct lima_sched_pipe *pipe); 80 void (*task_error)(struct lima_sched_pipe *pipe); 81 void (*task_mmu_error)(struct lima_sched_pipe *pipe); 82 int (*task_recover)(struct lima_sched_pipe *pipe); 83 84 struct work_struct recover_work; 85 }; 86 87 int lima_sched_task_init(struct lima_sched_task *task, 88 struct lima_sched_context *context, 89 struct lima_bo **bos, int num_bos, 90 struct lima_vm *vm); 91 void lima_sched_task_fini(struct lima_sched_task *task); 92 93 int lima_sched_context_init(struct lima_sched_pipe *pipe, 94 struct lima_sched_context *context, 95 atomic_t *guilty); 96 void lima_sched_context_fini(struct lima_sched_pipe *pipe, 97 struct lima_sched_context *context); 98 struct dma_fence *lima_sched_context_queue_task(struct lima_sched_task *task); 99 100 int lima_sched_pipe_init(struct lima_sched_pipe *pipe, const char *name); 101 void lima_sched_pipe_fini(struct lima_sched_pipe *pipe); 102 void lima_sched_pipe_task_done(struct lima_sched_pipe *pipe); 103 104 static inline void lima_sched_pipe_mmu_error(struct lima_sched_pipe *pipe) 105 { 106 pipe->error = true; 107 pipe->task_mmu_error(pipe); 108 } 109 110 int lima_sched_slab_init(void); 111 void lima_sched_slab_fini(void); 112 113 #endif 114