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path: root/drivers/gpu/drm/i915/gt/intel_breadcrumbs.c
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Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_breadcrumbs.c')
-rw-r--r--drivers/gpu/drm/i915/gt/intel_breadcrumbs.c15
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_breadcrumbs.c b/drivers/gpu/drm/i915/gt/intel_breadcrumbs.c
index d650beb8ed..20b9b04ec1 100644
--- a/drivers/gpu/drm/i915/gt/intel_breadcrumbs.c
+++ b/drivers/gpu/drm/i915/gt/intel_breadcrumbs.c
@@ -263,8 +263,13 @@ static void signal_irq_work(struct irq_work *work)
i915_request_put(rq);
}
+ /* Lazy irq enabling after HW submission */
if (!READ_ONCE(b->irq_armed) && !list_empty(&b->signalers))
intel_breadcrumbs_arm_irq(b);
+
+ /* And confirm that we still want irqs enabled before we yield */
+ if (READ_ONCE(b->irq_armed) && !atomic_read(&b->active))
+ intel_breadcrumbs_disarm_irq(b);
}
struct intel_breadcrumbs *
@@ -315,13 +320,7 @@ void __intel_breadcrumbs_park(struct intel_breadcrumbs *b)
return;
/* Kick the work once more to drain the signalers, and disarm the irq */
- irq_work_sync(&b->irq_work);
- while (READ_ONCE(b->irq_armed) && !atomic_read(&b->active)) {
- local_irq_disable();
- signal_irq_work(&b->irq_work);
- local_irq_enable();
- cond_resched();
- }
+ irq_work_queue(&b->irq_work);
}
void intel_breadcrumbs_free(struct kref *kref)
@@ -404,7 +403,7 @@ static void insert_breadcrumb(struct i915_request *rq)
* the request as it may have completed and raised the interrupt as
* we were attaching it into the lists.
*/
- if (!b->irq_armed || __i915_request_is_complete(rq))
+ if (!READ_ONCE(b->irq_armed) || __i915_request_is_complete(rq))
irq_work_queue(&b->irq_work);
}