drm/i915: Register a shrinker to free inactive lists under memory pressure
This should help GEM handle memory pressure sitatuions more gracefully.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 0721469..bbcf5fc 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -369,6 +369,15 @@
int gtt_mtrr;
/**
+ * Membership on list of all loaded devices, used to evict
+ * inactive buffers under memory pressure.
+ *
+ * Modifications should only be done whilst holding the
+ * shrink_list_lock spinlock.
+ */
+ struct list_head shrink_list;
+
+ /**
* List of objects currently involved in rendering from the
* ringbuffer.
*
@@ -741,6 +750,9 @@
void i915_gem_object_put_pages(struct drm_gem_object *obj);
void i915_gem_release(struct drm_device * dev, struct drm_file *file_priv);
+void i915_gem_shrinker_init(void);
+void i915_gem_shrinker_exit(void);
+
/* i915_gem_tiling.c */
void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
void i915_gem_object_do_bit_17_swizzle(struct drm_gem_object *obj);