1/* SPDX-License-Identifier: MIT */
2
3#ifndef __NOUVEAU_EXEC_H__
4#define __NOUVEAU_EXEC_H__
5
6#include <drm/drm_exec.h>
7
8#include "nouveau_drv.h"
9#include "nouveau_sched.h"
10
11struct nouveau_exec_job_args {
12	struct drm_file *file_priv;
13	struct nouveau_sched_entity *sched_entity;
14
15	struct drm_exec exec;
16	struct nouveau_channel *chan;
17
18	struct {
19		struct drm_nouveau_sync *s;
20		u32 count;
21	} in_sync;
22
23	struct {
24		struct drm_nouveau_sync *s;
25		u32 count;
26	} out_sync;
27
28	struct {
29		struct drm_nouveau_exec_push *s;
30		u32 count;
31	} push;
32};
33
34struct nouveau_exec_job {
35	struct nouveau_job base;
36	struct nouveau_fence *fence;
37	struct nouveau_channel *chan;
38
39	struct {
40		struct drm_nouveau_exec_push *s;
41		u32 count;
42	} push;
43};
44
45#define to_nouveau_exec_job(job)		\
46		container_of((job), struct nouveau_exec_job, base)
47
48int nouveau_exec_job_init(struct nouveau_exec_job **job,
49			  struct nouveau_exec_job_args *args);
50
51int nouveau_exec_ioctl_exec(struct drm_device *dev, void *data,
52			    struct drm_file *file_priv);
53
54static inline unsigned int
55nouveau_exec_push_max_from_ib_max(int ib_max)
56{
57	/* Limit the number of IBs per job to half the size of the ring in order
58	 * to avoid the ring running dry between submissions and preserve one
59	 * more slot for the job's HW fence.
60	 */
61	return ib_max > 1 ? ib_max / 2 - 1 : 0;
62}
63
64#endif
65