[PATCH 34/76] drm/i915: Move needs-breadcrumb flags to scheduler

[Chris Wilson]

Whether the scheduler depends on interrupt delivery for forward progress
is a property of the scheduler backend not of the underlying engine, so
move the flag from inside the engine to i915_sched_engine.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gt/intel_engine.h            |  6 ++++++
 drivers/gpu/drm/i915/gt/intel_engine_types.h      | 13 +++----------
 drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c |  2 +-
 drivers/gpu/drm/i915/i915_scheduler_types.h       |  7 +++++++
 4 files changed, 17 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_engine.h b/drivers/gpu/drm/i915/gt/intel_engine.h
index ca3a9cb06328..db5419ba1dc8 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine.h
@@ -285,4 +285,10 @@ intel_engine_has_timeslices(struct intel_engine_cs *engine)
 	return i915_sched_has_timeslices(intel_engine_get_scheduler(engine));
 }
 
+static inline bool
+intel_engine_needs_breadcrumb_tasklet(struct intel_engine_cs *engine)
+{
+	return i915_sched_needs_breadcrumb_tasklet(intel_engine_get_scheduler(engine));
+}
+
 #endif /* _INTEL_RINGBUFFER_H_ */
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h
index 96a0aec29672..f856bd9b7dae 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h
@@ -442,10 +442,9 @@ struct intel_engine_cs {
 #define I915_ENGINE_SUPPORTS_STATS   BIT(1)
 #define I915_ENGINE_HAS_PREEMPTION   BIT(2)
 #define I915_ENGINE_HAS_SEMAPHORES   BIT(3)
-#define I915_ENGINE_NEEDS_BREADCRUMB_TASKLET BIT(4)
-#define I915_ENGINE_IS_VIRTUAL       BIT(5)
-#define I915_ENGINE_HAS_RELATIVE_MMIO BIT(6)
-#define I915_ENGINE_REQUIRES_CMD_PARSER BIT(7)
+#define I915_ENGINE_IS_VIRTUAL       BIT(4)
+#define I915_ENGINE_HAS_RELATIVE_MMIO BIT(5)
+#define I915_ENGINE_REQUIRES_CMD_PARSER BIT(6)
 	unsigned int flags;
 
 	/*
@@ -540,12 +539,6 @@ intel_engine_has_semaphores(const struct intel_engine_cs *engine)
 	return engine->flags & I915_ENGINE_HAS_SEMAPHORES;
 }
 
-static inline bool
-intel_engine_needs_breadcrumb_tasklet(const struct intel_engine_cs *engine)
-{
-	return engine->flags & I915_ENGINE_NEEDS_BREADCRUMB_TASKLET;
-}
-
 static inline bool
 intel_engine_is_virtual(const struct intel_engine_cs *engine)
 {
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 3d447f178972..f2b146ee9830 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -606,7 +606,6 @@ static void guc_default_vfuncs(struct intel_engine_cs *engine)
 	}
 	engine->set_default_submission = guc_set_default_submission;
 
-	engine->flags |= I915_ENGINE_NEEDS_BREADCRUMB_TASKLET;
 	engine->flags |= I915_ENGINE_HAS_PREEMPTION;
 
 	/*
@@ -657,6 +656,7 @@ int intel_guc_submission_setup(struct intel_engine_cs *engine)
 	tasklet_setup(&engine->sched.tasklet, guc_submission_tasklet);
 	__set_bit(I915_SCHED_ACTIVE_BIT, &engine->sched.flags);
 	__set_bit(I915_SCHED_PRIORITY_BIT, &engine->sched.flags);
+	__set_bit(I915_SCHED_NEEDS_BREADCRUMB_BIT, &engine->sched.flags);
 
 	guc_default_vfuncs(engine);
 	guc_default_irqs(engine);
diff --git a/drivers/gpu/drm/i915/i915_scheduler_types.h b/drivers/gpu/drm/i915/i915_scheduler_types.h
index b9f60366262e..899882ef5c1e 100644
--- a/drivers/gpu/drm/i915/i915_scheduler_types.h
+++ b/drivers/gpu/drm/i915/i915_scheduler_types.h
@@ -23,6 +23,7 @@ enum {
 	I915_SCHED_ACTIVE_BIT,
 	I915_SCHED_PRIORITY_BIT, /* priority sorting of queue */
 	I915_SCHED_TIMESLICE_BIT, /* multitasking for long workloads */
+	I915_SCHED_NEEDS_BREADCRUMB_BIT, /* wake tasklet on every interrupt */
 };
 
 /**
@@ -206,4 +207,10 @@ static inline bool i915_sched_has_timeslices(const struct i915_sched *se)
 	return test_bit(I915_SCHED_TIMESLICE_BIT, &se->flags);
 }
 
+static inline bool
+i915_sched_needs_breadcrumb_tasklet(const struct i915_sched *se)
+{
+	return test_bit(I915_SCHED_NEEDS_BREADCRUMB_BIT, &se->flags);
+}
+
 #endif /* _I915_SCHEDULER_TYPES_H_ */
-- 
2.20.1