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path: root/drivers/gpu/drm/i915/gem/i915_gem_pm.c
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Diffstat (limited to 'drivers/gpu/drm/i915/gem/i915_gem_pm.c')
-rw-r--r--drivers/gpu/drm/i915/gem/i915_gem_pm.c20
1 files changed, 19 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_pm.c b/drivers/gpu/drm/i915/gem/i915_gem_pm.c
index 6e75702c5671..141f3ea349a4 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_pm.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_pm.c
@@ -10,6 +10,22 @@
#include "i915_drv.h"
#include "i915_globals.h"
+static void call_idle_barriers(struct intel_engine_cs *engine)
+{
+ struct llist_node *node, *next;
+
+ llist_for_each_safe(node, next, llist_del_all(&engine->barrier_tasks)) {
+ struct i915_active_request *active =
+ container_of((struct list_head *)node,
+ typeof(*active), link);
+
+ INIT_LIST_HEAD(&active->link);
+ RCU_INIT_POINTER(active->request, NULL);
+
+ active->retire(active, NULL);
+ }
+}
+
static void i915_gem_park(struct drm_i915_private *i915)
{
struct intel_engine_cs *engine;
@@ -17,8 +33,10 @@ static void i915_gem_park(struct drm_i915_private *i915)
lockdep_assert_held(&i915->drm.struct_mutex);
- for_each_engine(engine, i915, id)
+ for_each_engine(engine, i915, id) {
+ call_idle_barriers(engine); /* cleanup after wedging */
i915_gem_batch_pool_fini(&engine->batch_pool);
+ }
i915_timelines_park(i915);
i915_vma_parked(i915);