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