1 | /* |
---|---|
2 | * SPDX-License-Identifier: MIT |
3 | * |
4 | * Copyright © 2019 Intel Corporation |
5 | */ |
6 | |
7 | #ifndef _I915_ACTIVE_TYPES_H_ |
8 | #define _I915_ACTIVE_TYPES_H_ |
9 | |
10 | #include <linux/atomic.h> |
11 | #include <linux/dma-fence.h> |
12 | #include <linux/llist.h> |
13 | #include <linux/mutex.h> |
14 | #include <linux/rbtree.h> |
15 | #include <linux/rcupdate.h> |
16 | #include <linux/workqueue.h> |
17 | |
18 | struct i915_active_fence { |
19 | struct dma_fence __rcu *fence; |
20 | struct dma_fence_cb cb; |
21 | }; |
22 | |
23 | struct active_node; |
24 | |
25 | struct i915_active { |
26 | atomic_t count; |
27 | struct mutex mutex; |
28 | |
29 | spinlock_t tree_lock; |
30 | struct active_node *cache; |
31 | struct rb_root tree; |
32 | |
33 | /* Preallocated "exclusive" node */ |
34 | struct i915_active_fence excl; |
35 | |
36 | unsigned long flags; |
37 | #define I915_ACTIVE_RETIRE_SLEEPS BIT(0) |
38 | |
39 | int (*active)(struct i915_active *ref); |
40 | void (*retire)(struct i915_active *ref); |
41 | |
42 | struct work_struct work; |
43 | |
44 | struct llist_head preallocated_barriers; |
45 | }; |
46 | |
47 | #endif /* _I915_ACTIVE_TYPES_H_ */ |
48 |