[Intel-gfx] [PATCH 4/5] drm/i915: un-inline i915_gem_drain_freed_objects()

Jani Nikula jani.nikula at intel.com
Mon Sep 5 15:00:52 UTC 2022


I can't idenfity a single hot path that would require
i915_gem_drain_freed_objects() to be inline. Un-inline it.

Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h | 17 +----------------
 drivers/gpu/drm/i915/i915_gem.c | 15 +++++++++++++++
 2 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 911164dae182..bbfc295f386b 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -976,22 +976,7 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
 void i915_gem_init_early(struct drm_i915_private *dev_priv);
 void i915_gem_cleanup_early(struct drm_i915_private *dev_priv);
 
-static inline void i915_gem_drain_freed_objects(struct drm_i915_private *i915)
-{
-	/*
-	 * A single pass should suffice to release all the freed objects (along
-	 * most call paths) , but be a little more paranoid in that freeing
-	 * the objects does take a little amount of time, during which the rcu
-	 * callbacks could have added new objects into the freed list, and
-	 * armed the work again.
-	 */
-	while (atomic_read(&i915->mm.free_count)) {
-		flush_work(&i915->mm.free_work);
-		flush_delayed_work(&i915->bdev.wq);
-		rcu_barrier();
-	}
-}
-
+void i915_gem_drain_freed_objects(struct drm_i915_private *i915);
 void i915_gem_drain_workqueue(struct drm_i915_private *i915);
 
 struct i915_vma * __must_check
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 4c89b33ada95..0f49ec9d494a 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1085,6 +1085,21 @@ i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
 	return err;
 }
 
+/*
+ * A single pass should suffice to release all the freed objects (along most
+ * call paths), but be a little more paranoid in that freeing the objects does
+ * take a little amount of time, during which the rcu callbacks could have added
+ * new objects into the freed list, and armed the work again.
+ */
+void i915_gem_drain_freed_objects(struct drm_i915_private *i915)
+{
+	while (atomic_read(&i915->mm.free_count)) {
+		flush_work(&i915->mm.free_work);
+		flush_delayed_work(&i915->bdev.wq);
+		rcu_barrier();
+	}
+}
+
 /*
  * Similar to objects above (see i915_gem_drain_freed-objects), in general we
  * have workers that are armed by RCU and then rearm themselves in their
-- 
2.34.1



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