diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_exec.h')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_exec.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_exec.h b/drivers/gpu/drm/nouveau/nouveau_exec.h index 778cacd90f65..5488d337bcc0 100644 --- a/drivers/gpu/drm/nouveau/nouveau_exec.h +++ b/drivers/gpu/drm/nouveau/nouveau_exec.h @@ -51,4 +51,14 @@ int nouveau_exec_job_init(struct nouveau_exec_job **job, int nouveau_exec_ioctl_exec(struct drm_device *dev, void *data, struct drm_file *file_priv); +static inline unsigned int +nouveau_exec_push_max_from_ib_max(int ib_max) +{ + /* Limit the number of IBs per job to half the size of the ring in order + * to avoid the ring running dry between submissions and preserve one + * more slot for the job's HW fence. + */ + return ib_max > 1 ? ib_max / 2 - 1 : 0; +} + #endif |