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 <d...@redhat.com>
---
drivers/gpu/drm/nouveau/nouveau_abi16.c | 3 ++-
drivers/gpu/drm/nouveau/nouveau_drm.c | 2 +-
drivers/gpu/drm/nouveau/nouveau_exec.c | 4 +++-
drivers/gpu/drm/nouveau/nouveau_sched.c | 9 ++++-----
drivers/gpu/drm/nouveau/nouveau_sched.h | 3 ++-
drivers/gpu/drm/nouveau/nouveau_uvmm.c | 4 +++-
6 files changed, 15 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c
b/drivers/gpu/drm/nouveau/nouveau_abi16.c
index f8e59cfb1d34..207945700c94 100644
--- a/drivers/gpu/drm/nouveau/nouveau_abi16.c
+++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c
@@ -316,7 +316,8 @@ nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
if (ret)
goto done;
- ret = nouveau_sched_init(&chan->sched, drm, drm->sched_wq);
+ ret = nouveau_sched_init(&chan->sched, drm, drm->sched_wq,
+ chan->chan->dma.ib_max);
if (ret)
goto done;
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c
b/drivers/gpu/drm/nouveau/nouveau_drm.c
index 7e5f19153829..6f6c31a9937b 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -320,7 +320,7 @@ nouveau_cli_init(struct nouveau_drm *drm, const char *sname,
* locks which indirectly or directly are held for allocations
* elsewhere.
*/
- ret = nouveau_sched_init(&cli->sched, drm, NULL);
+ ret = nouveau_sched_init(&cli->sched, drm, NULL, 1);
if (ret)
goto done;
diff --git a/drivers/gpu/drm/nouveau/nouveau_exec.c
b/drivers/gpu/drm/nouveau/nouveau_exec.c
index 388831c53551..63c344f4f78e 100644
--- a/drivers/gpu/drm/nouveau/nouveau_exec.c
+++ b/drivers/gpu/drm/nouveau/nouveau_exec.c
@@ -258,10 +258,12 @@ nouveau_exec_job_init(struct nouveau_exec_job **pjob,
}
}
+ args.file_priv = __args->file_priv;
job->chan = __args->chan;
args.sched = __args->sched;
- args.file_priv = __args->file_priv;
+ /* Plus one to account for the HW fence. */
+ args.credits = job->push.count + 1;
args.in_sync.count = __args->in_sync.count;
args.in_sync.s = __args->in_sync.s;
diff --git a/drivers/gpu/drm/nouveau/nouveau_sched.c
b/drivers/gpu/drm/nouveau/nouveau_sched.c
index faabd662b165..6406d6659361 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;
@@ -396,7 +395,7 @@ 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;
@@ -414,7 +413,7 @@ 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;
diff --git a/drivers/gpu/drm/nouveau/nouveau_sched.h
b/drivers/gpu/drm/nouveau/nouveau_sched.h
index 026f33d9b70c..7ba8ffec135a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_sched.h
+++ b/drivers/gpu/drm/nouveau/nouveau_sched.h
@@ -27,6 +27,7 @@ enum nouveau_job_state {
struct nouveau_job_args {
struct drm_file *file_priv;
struct nouveau_sched *sched;
+ u32 credits;
enum dma_resv_usage resv_usage;
bool sync;
@@ -112,7 +113,7 @@ struct nouveau_sched {
};
int nouveau_sched_init(struct nouveau_sched *sched, struct nouveau_drm *drm,
- struct workqueue_struct *wq);
+ struct workqueue_struct *wq, u32 credit_limit);
void nouveau_sched_fini(struct nouveau_sched *sched);
#endif
diff --git a/drivers/gpu/drm/nouveau/nouveau_uvmm.c
b/drivers/gpu/drm/nouveau/nouveau_uvmm.c
index c95186b34ea0..708cd5f43cb9 100644
--- a/drivers/gpu/drm/nouveau/nouveau_uvmm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_uvmm.c
@@ -1606,9 +1606,11 @@ nouveau_uvmm_bind_job_init(struct nouveau_uvmm_bind_job
**pjob,
init_completion(&job->complete);
- args.sched = __args->sched;
args.file_priv = __args->file_priv;
+ args.sched = __args->sched;
+ args.credits = 1;
+
args.in_sync.count = __args->in_sync.count;
args.in_sync.s = __args->in_sync.s;
--
2.41.0
