@@ -220,6 +220,28 @@ static void signal_irq_work(struct irq_work *work)
}
}
+void intel_engine_pin_breadcrumbs_irq(struct intel_engine_cs *engine)
+{
+ struct intel_breadcrumbs *b = &engine->breadcrumbs;
+
+ spin_lock_irq(&b->irq_lock);
+ if (!b->irq_enabled++)
+ irq_enable(engine);
+ GEM_BUG_ON(!b->irq_enabled); /* no overflow! */
+ spin_unlock_irq(&b->irq_lock);
+}
+
+void intel_engine_unpin_breadcrumbs_irq(struct intel_engine_cs *engine)
+{
+ struct intel_breadcrumbs *b = &engine->breadcrumbs;
+
+ spin_lock_irq(&b->irq_lock);
+ GEM_BUG_ON(!b->irq_enabled); /* no underflow! */
+ if (!--b->irq_enabled)
+ irq_disable(engine);
+ spin_unlock_irq(&b->irq_lock);
+}
+
static bool __intel_breadcrumbs_arm_irq(struct intel_breadcrumbs *b)
{
struct intel_engine_cs *engine =
@@ -226,6 +226,9 @@ void intel_engine_init_execlists(struct intel_engine_cs *engine);
void intel_engine_init_breadcrumbs(struct intel_engine_cs *engine);
void intel_engine_fini_breadcrumbs(struct intel_engine_cs *engine);
+void intel_engine_pin_breadcrumbs_irq(struct intel_engine_cs *engine);
+void intel_engine_unpin_breadcrumbs_irq(struct intel_engine_cs *engine);
+
void intel_engine_disarm_breadcrumbs(struct intel_engine_cs *engine);
static inline void
This was removed in commit 478ffad6d690 ("drm/i915: drop engine_pin/unpin_breadcrumbs_irq") as the last user had been removed, but now there is a promise of a new user in the next patch. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> --- drivers/gpu/drm/i915/gt/intel_breadcrumbs.c | 22 +++++++++++++++++++++ drivers/gpu/drm/i915/gt/intel_engine.h | 3 +++ 2 files changed, 25 insertions(+)