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