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authorDanilo Krummrich <dakr@redhat.com>2023-11-14 01:27:25 +0100
committerDanilo Krummrich <dakr@redhat.com>2023-11-24 21:24:51 +0100
commit46990918f35c1bf6e367cf8e0423e7344fec9fcb (patch)
tree52c25ddbd2cae0cfb55422fe71c70aa4fb029c0e /drivers/gpu/drm/nouveau/nouveau_sched.c
parent5f03a507b29e44a848f315c7240c19894dd8be4f (diff)
drm/nouveau: enable dynamic job-flow control
Make use of the scheduler's credit limit and scheduler job's credit count to account for the actual size of a job, such that we fill up the ring efficiently. Signed-off-by: Danilo Krummrich <dakr@redhat.com> Reviewed-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231114002728.3491-2-dakr@redhat.com
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_sched.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_sched.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_sched.c b/drivers/gpu/drm/nouveau/nouveau_sched.c
index 0f4583f6fcad..3393647bd944 100644
--- a/drivers/gpu/drm/nouveau/nouveau_sched.c
+++ b/drivers/gpu/drm/nouveau/nouveau_sched.c
@@ -12,7 +12,6 @@
#include "nouveau_abi16.h"
#include "nouveau_sched.h"
-#define NOUVEAU_SCHED_HW_SUBMISSIONS 1
#define NOUVEAU_SCHED_JOB_TIMEOUT_MS 10000
/* Starts at 0, since the DRM scheduler interprets those parameters as (initial)
@@ -85,10 +84,10 @@ nouveau_job_init(struct nouveau_job *job,
ret = -ENOMEM;
goto err_free_objs;
}
-
}
- ret = drm_sched_job_init(&job->base, &sched->entity, 1, NULL);
+ ret = drm_sched_job_init(&job->base, &sched->entity,
+ args->credits, NULL);
if (ret)
goto err_free_chains;
@@ -401,7 +400,7 @@ static const struct drm_sched_backend_ops nouveau_sched_ops = {
int
nouveau_sched_init(struct nouveau_sched *sched, struct nouveau_drm *drm,
- struct workqueue_struct *wq)
+ struct workqueue_struct *wq, u32 credit_limit)
{
struct drm_gpu_scheduler *drm_sched = &sched->base;
struct drm_sched_entity *entity = &sched->entity;
@@ -419,7 +418,7 @@ nouveau_sched_init(struct nouveau_sched *sched, struct nouveau_drm *drm,
ret = drm_sched_init(drm_sched, &nouveau_sched_ops, wq,
NOUVEAU_SCHED_PRIORITY_COUNT,
- NOUVEAU_SCHED_HW_SUBMISSIONS, 0, job_hang_limit,
+ credit_limit, 0, job_hang_limit,
NULL, NULL, "nouveau_sched", drm->dev->dev);
if (ret)
goto fail_wq;