drm/i915: Fix oopses in the overlay code due to i915_gem_active stuff

[GitHub/LineageOS/android_kernel_motorola_exynos9610.git] / drivers / gpu / drm / i915 / i915_gem_request.h

diff --git a/drivers/gpu/drm/i915/i915_gem_request.h b/drivers/gpu/drm/i915/i915_gem_request.h
index 8569b35a332a219ddd8424d853118c9db6745f6d..ea511f06efaf52b6e1faa806bdf5f7730b72d3b1 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem_request.h
+++ b/drivers/gpu/drm/i915/i915_gem_request.h
@@ -402,6 +402,25 @@ i915_gem_active_set(struct i915_gem_active *active,
        rcu_assign_pointer(active->request, request);
 }
 
+/**
+ * i915_gem_active_set_retire_fn - updates the retirement callback
+ * @active - the active tracker
+ * @fn - the routine called when the request is retired
+ * @mutex - struct_mutex used to guard retirements
+ *
+ * i915_gem_active_set_retire_fn() updates the function pointer that
+ * is called when the final request associated with the @active tracker
+ * is retired.
+ */
+static inline void
+i915_gem_active_set_retire_fn(struct i915_gem_active *active,
+                             i915_gem_retire_fn fn,
+                             struct mutex *mutex)
+{
+       lockdep_assert_held(mutex);
+       active->retire = fn ?: i915_gem_retire_noop;
+}
+
 static inline struct drm_i915_gem_request *
 __i915_gem_active_peek(const struct i915_gem_active *active)
 {