| 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 | |
| 11 | struct 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 | |
| 34 | struct 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 | |
| 48 | int nouveau_exec_job_init(struct nouveau_exec_job **job, |
| 49 | struct nouveau_exec_job_args *args); |
| 50 | |
| 51 | int nouveau_exec_ioctl_exec(struct drm_device *dev, void *data, |
| 52 | struct drm_file *file_priv); |
| 53 | |
| 54 | static inline unsigned int |
| 55 | nouveau_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 |