diff options
| author |   Matthew Brost <matthew.brost@intel.com> | 2021-06-17 18:06:33 -0700 |
|---|---|---|
| committer |   Matt Roper <matthew.d.roper@intel.com> | 2021-06-18 15:13:20 -0700 |
| commit | c4fd7d8cc3caa614ab492e0efc8854328f72b719 (patch) | |
| tree | 6d86ebc7d662bd0ad2c4bab3ecd36b20ee5234ca | |
| parent | drm/i915: Add i915_sched_engine_is_empty function (diff) | |
| download | linux-dev-c4fd7d8cc3caa614ab492e0efc8854328f72b719.tar.xz linux-dev-c4fd7d8cc3caa614ab492e0efc8854328f72b719.zip | |
drm/i915: Reset sched_engine.no_priolist immediately after dequeue
Rather than touching schedule state in the generic PM code, reset the
priolist allocation when empty in the submission code. Add a wrapper
function to do this and update the backends to call it in the correct
place.
v3:
(Jason Ekstrand)
Update patch commit message with a better description
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210618010638.98941-4-matthew.brost@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_engine_pm.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_execlists_submission.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_scheduler.h | 7 |
4 files changed, 10 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_pm.c b/drivers/gpu/drm/i915/gt/intel_engine_pm.c index b6a00dd72808..1f07ac4e0672 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_pm.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_pm.c @@ -280,8 +280,6 @@ static int __engine_park(struct intel_wakeref *wf) if (engine->park) engine->park(engine); - engine->sched_engine->no_priolist = false; - /* While gt calls i915_vma_parked(), we have to break the lock cycle */ intel_gt_pm_put_async(engine->gt); return 0; diff --git a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c index e36b0e81876a..47a43aafa39f 100644 --- a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c +++ b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c @@ -1553,6 +1553,7 @@ done: * interrupt for secondary ports). */ sched_engine->queue_priority_hint = queue_prio(sched_engine); + i915_sched_engine_reset_on_empty(sched_engine); spin_unlock(&engine->active.lock); /* diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c index d65a7665b38e..9887a514a4d5 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c @@ -263,6 +263,8 @@ static void guc_submission_tasklet(struct tasklet_struct *t) __guc_dequeue(engine); + i915_sched_engine_reset_on_empty(engine->sched_engine); + spin_unlock_irqrestore(&engine->active.lock, flags); } diff --git a/drivers/gpu/drm/i915/i915_scheduler.h b/drivers/gpu/drm/i915/i915_scheduler.h index 5bec7b3b8456..713c38c99de9 100644 --- a/drivers/gpu/drm/i915/i915_scheduler.h +++ b/drivers/gpu/drm/i915/i915_scheduler.h @@ -72,6 +72,13 @@ i915_sched_engine_is_empty(struct i915_sched_engine *sched_engine) return RB_EMPTY_ROOT(&sched_engine->queue.rb_root); } +static inline void +i915_sched_engine_reset_on_empty(struct i915_sched_engine *sched_engine) +{ + if (i915_sched_engine_is_empty(sched_engine)) + sched_engine->no_priolist = false; +} + void i915_request_show_with_schedule(struct drm_printer *m, const struct i915_request *rq, const char *prefix, |