[Intel-gfx] [PATCH 06/33] drm/i915: Add i915_sched_engine destroy vfunc

Matthew Brost
2021-07-22T23:37:12Z

This is required to allow backend specific cleanup

v2:
(John H)
- Rework commit message

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
---
drivers/gpu/drm/i915/i915_scheduler.c | 3 ++-
drivers/gpu/drm/i915/i915_scheduler.h | 4 +---
drivers/gpu/drm/i915/i915_scheduler_types.h | 5 +++++
3 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_scheduler.c b/drivers/gpu/drm/i915/i915_scheduler.c
index 561c649e59f7..2804fd5b660b 100644
--- a/drivers/gpu/drm/i915/i915_scheduler.c
+++ b/drivers/gpu/drm/i915/i915_scheduler.c
@@ -431,7 +431,7 @@ void i915_request_show_with_schedule(struct drm_printer *m,
rcu_read_unlock();
}

-void i915_sched_engine_free(struct kref *kref)
+static void default_destroy(struct kref *kref)
{
struct i915_sched_engine *sched_engine =
container_of(kref, typeof(*sched_engine), ref);
@@ -453,6 +453,7 @@ i915_sched_engine_create(unsigned int subclass)

sched_engine->queue = RB_ROOT_CACHED;
sched_engine->queue_priority_hint = INT_MIN;
+ sched_engine->destroy = default_destroy;

INIT_LIST_HEAD(&sched_engine->requests);
INIT_LIST_HEAD(&sched_engine->hold);
diff --git a/drivers/gpu/drm/i915/i915_scheduler.h b/drivers/gpu/drm/i915/i915_scheduler.h
index 650ab8e0db9f..3c9504e9f409 100644
--- a/drivers/gpu/drm/i915/i915_scheduler.h
+++ b/drivers/gpu/drm/i915/i915_scheduler.h
@@ -51,8 +51,6 @@ static inline void i915_priolist_free(struct i915_priolist *p)
struct i915_sched_engine *
i915_sched_engine_create(unsigned int subclass);

-void i915_sched_engine_free(struct kref *kref);
-
static inline struct i915_sched_engine *
i915_sched_engine_get(struct i915_sched_engine *sched_engine)
{
@@ -63,7 +61,7 @@ i915_sched_engine_get(struct i915_sched_engine *sched_engine)
static inline void
i915_sched_engine_put(struct i915_sched_engine *sched_engine)
{
- kref_put(&sched_engine->ref, i915_sched_engine_free);
+ kref_put(&sched_engine->ref, sched_engine->destroy);
}

static inline bool
diff --git a/drivers/gpu/drm/i915/i915_scheduler_types.h b/drivers/gpu/drm/i915/i915_scheduler_types.h
index 5935c3152bdc..00384e2c5273 100644
--- a/drivers/gpu/drm/i915/i915_scheduler_types.h
+++ b/drivers/gpu/drm/i915/i915_scheduler_types.h
@@ -163,6 +163,11 @@ struct i915_sched_engine {
*/
void *private_data;

+ /**
+ * @destroy: destroy schedule engine / cleanup in backend
+ */
+ void (*destroy)(struct kref *kref);
+
/**
* @kick_backend: kick backend after a request's priority has changed
*/