drm/i915/i915_active.h

44  * can then perform any action, such as delayed freeing of an active
52  * @active: the active tracker
57  * i915_active_fence_init() prepares the embedded @active struct for use as
58  * an activity tracker, that is for tracking the last known active fence
63 __i915_active_fence_init(struct i915_active_fence *active,
67 	RCU_INIT_POINTER(active->fence, fence);
68 	active->cb.func = fn ?: i915_active_noop;
75 __i915_active_fence_set(struct i915_active_fence *active,
80  * @active: the active tracker
84  * that @rq is busy, the @active reports busy. When that @rq is signaled
85  * (or else retired) the @active tracker is updated to report idle.
88 i915_active_fence_set(struct i915_active_fence *active,
91  * i915_active_fence_get - return a reference to the active fence
92  * @active: the active tracker
94  * i915_active_fence_get() returns a reference to the active fence,
95  * or NULL if the active tracker is idle. The reference is obtained under RCU,
101 i915_active_fence_get(struct i915_active_fence *active)
106 	fence = dma_fence_get_rcu_safe(&active->fence);
113  * i915_active_fence_isset - report whether the active tracker is assigned
114  * @active: the active tracker
116  * i915_active_fence_isset() returns true if the active tracker is currently
121 i915_active_fence_isset(const struct i915_active_fence *active)
123 	return rcu_access_pointer(active->fence);
153 			int (*active)(struct i915_active *ref),
160 #define i915_active_init(ref, active, retire, flags) do {			\
164 	__i915_active_init(ref, active, retire, flags, &__mkey, &__wkey);	\
221 						 struct i915_active *active)
226 	fence = i915_active_fence_get(&active->excl);