Hi Matthew,
I'm not sure in which tree you plan to apply this series, but if you
plan to apply it on drm-misc-next, it would be nice to rebase on top of
it. It would make it easier for driver maintainers to review it.
Apart from the small nit below it, I tested the Xe tree on v3d and
things seems to be running smoothly.
On 8/10/23 23:31, Matthew Brost wrote:
Rather than a global modparam for scheduling policy, move the scheduling
policy to scheduler / entity so user can control each scheduler / entity
policy.
v2:
- s/DRM_SCHED_POLICY_MAX/DRM_SCHED_POLICY_COUNT (Luben)
- Only include policy in scheduler (Luben)
Signed-off-by: Matthew Brost <matthew.brost@xxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 1 +
drivers/gpu/drm/etnaviv/etnaviv_sched.c | 3 ++-
drivers/gpu/drm/lima/lima_sched.c | 3 ++-
drivers/gpu/drm/msm/msm_ringbuffer.c | 3 ++-
drivers/gpu/drm/nouveau/nouveau_sched.c | 3 ++-
drivers/gpu/drm/panfrost/panfrost_job.c | 3 ++-
drivers/gpu/drm/scheduler/sched_entity.c | 24 ++++++++++++++++++----
drivers/gpu/drm/scheduler/sched_main.c | 23 +++++++++++++++------
drivers/gpu/drm/v3d/v3d_sched.c | 15 +++++++++-----
include/drm/gpu_scheduler.h | 20 ++++++++++++------
10 files changed, 72 insertions(+), 26 deletions(-)
[...]
diff --git a/drivers/gpu/drm/v3d/v3d_sched.c b/drivers/gpu/drm/v3d/v3d_sched.c
index 38e092ea41e6..5e3fe77fa991 100644
--- a/drivers/gpu/drm/v3d/v3d_sched.c
+++ b/drivers/gpu/drm/v3d/v3d_sched.c
@@ -391,7 +391,8 @@ v3d_sched_init(struct v3d_dev *v3d)
&v3d_bin_sched_ops, NULL,
hw_jobs_limit, job_hang_limit,
msecs_to_jiffies(hang_limit_ms), NULL,
- NULL, "v3d_bin", v3d->drm.dev);
+ NULL, "v3d_bin", DRM_SCHED_POLICY_DEFAULT,
+ v3d->drm.dev);
if (ret)
return ret;
@@ -399,7 +400,8 @@ v3d_sched_init(struct v3d_dev *v3d)
&v3d_render_sched_ops, NULL,
hw_jobs_limit, job_hang_limit,
msecs_to_jiffies(hang_limit_ms), NULL,
- NULL, "v3d_render", v3d->drm.dev);
+ ULL, "v3d_render", DRM_SCHED_POLICY_DEFAULT,
Small nit: s/ULL/NULL
Best Regards,
- Maíra
+ v3d->drm.dev);
if (ret)
goto fail;
@@ -407,7 +409,8 @@ v3d_sched_init(struct v3d_dev *v3d)
&v3d_tfu_sched_ops, NULL,
hw_jobs_limit, job_hang_limit,
msecs_to_jiffies(hang_limit_ms), NULL,
- NULL, "v3d_tfu", v3d->drm.dev);
+ NULL, "v3d_tfu", DRM_SCHED_POLICY_DEFAULT,
+ v3d->drm.dev);
if (ret)
goto fail;
@@ -416,7 +419,8 @@ v3d_sched_init(struct v3d_dev *v3d)
&v3d_csd_sched_ops, NULL,
hw_jobs_limit, job_hang_limit,
msecs_to_jiffies(hang_limit_ms), NULL,
- NULL, "v3d_csd", v3d->drm.dev);
+ NULL, "v3d_csd", DRM_SCHED_POLICY_DEFAULT,
+ v3d->drm.dev);
if (ret)
goto fail;
@@ -424,7 +428,8 @@ v3d_sched_init(struct v3d_dev *v3d)
&v3d_cache_clean_sched_ops, NULL,
hw_jobs_limit, job_hang_limit,
msecs_to_jiffies(hang_limit_ms), NULL,
- NULL, "v3d_cache_clean", v3d->drm.dev);
+ NULL, "v3d_cache_clean",
+ DRM_SCHED_POLICY_DEFAULT, v3d->drm.dev);
if (ret)
goto fail;
}
diff --git a/include/drm/gpu_scheduler.h b/include/drm/gpu_scheduler.h
index 278106e358a8..897d52a4ff4f 100644
--- a/include/drm/gpu_scheduler.h
+++ b/include/drm/gpu_scheduler.h
@@ -72,11 +72,15 @@ enum drm_sched_priority {
DRM_SCHED_PRIORITY_UNSET = -2
};
-/* Used to chose between FIFO and RR jobs scheduling */
-extern int drm_sched_policy;
-
-#define DRM_SCHED_POLICY_RR 0
-#define DRM_SCHED_POLICY_FIFO 1
+/* Used to chose default scheduling policy*/
+extern int default_drm_sched_policy;
+
+enum drm_sched_policy {
+ DRM_SCHED_POLICY_DEFAULT,
+ DRM_SCHED_POLICY_RR,
+ DRM_SCHED_POLICY_FIFO,
+ DRM_SCHED_POLICY_COUNT,
+};
/**
* struct drm_sched_entity - A wrapper around a job queue (typically
@@ -489,6 +493,7 @@ struct drm_sched_backend_ops {
* guilty and it will no longer be considered for scheduling.
* @score: score to help loadbalancer pick a idle sched
* @_score: score used when the driver doesn't provide one
+ * @sched_policy: Schedule policy for scheduler
* @ready: marks if the underlying HW is ready to work
* @free_guilty: A hit to time out handler to free the guilty job.
* @pause_submit: pause queuing of @work_submit on @submit_wq
@@ -514,6 +519,7 @@ struct drm_gpu_scheduler {
int hang_limit;
atomic_t *score;
atomic_t _score;
+ enum drm_sched_policy sched_policy;
bool ready;
bool free_guilty;
bool pause_submit;
@@ -525,7 +531,9 @@ int drm_sched_init(struct drm_gpu_scheduler *sched,
struct workqueue_struct *submit_wq,
uint32_t hw_submission, unsigned hang_limit,
long timeout, struct workqueue_struct *timeout_wq,
- atomic_t *score, const char *name, struct device *dev);
+ atomic_t *score, const char *name,
+ enum drm_sched_policy sched_policy,
+ struct device *dev);
void drm_sched_fini(struct drm_gpu_scheduler *sched);
int drm_sched_job_init(struct drm_sched_job *job,
