[linux-2.6-block.git] / drivers / gpu / drm / i915 / i915_active_types.h

/*
 * SPDX-License-Identifier: MIT
 *
 * Copyright © 2019 Intel Corporation
 */

#ifndef _I915_ACTIVE_TYPES_H_
#define _I915_ACTIVE_TYPES_H_

#include <linux/atomic.h>
#include <linux/dma-fence.h>
#include <linux/llist.h>
#include <linux/mutex.h>
#include <linux/rbtree.h>
#include <linux/rcupdate.h>
#include <linux/workqueue.h>

struct i915_active_fence {
	struct dma_fence __rcu *fence;
	struct dma_fence_cb cb;
};

struct active_node;

struct i915_active {
	atomic_t count;
	struct mutex mutex;

	spinlock_t tree_lock;
	struct active_node *cache;
	struct rb_root tree;

	/* Preallocated "exclusive" node */
	struct i915_active_fence excl;

	unsigned long flags;
#define I915_ACTIVE_RETIRE_SLEEPS BIT(0)

	int (*active)(struct i915_active *ref);
	void (*retire)(struct i915_active *ref);

	struct work_struct work;

	struct llist_head preallocated_barriers;
};

#endif /* _I915_ACTIVE_TYPES_H_ */
Commit	Line	Data
64d6c500 CW	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
12c255b5	10	#include <linux/atomic.h>
2850748e	11	#include <linux/dma-fence.h>
ce476c80	12	#include <linux/llist.h>
12c255b5	13	#include <linux/mutex.h>
64d6c500	14	#include <linux/rbtree.h>
21950ee7	15	#include <linux/rcupdate.h>
274cbf20 CW	16	#include <linux/workqueue.h>
274cbf20 CW	17
b1e3177b CW	18	struct i915_active_fence {
	19	struct dma_fence __rcu *fence;
	20	struct dma_fence_cb cb;
21950ee7	21	};
64d6c500	22
12c255b5 CW	23	struct active_node;
12c255b5 CW	24
64d6c500	25	struct i915_active {
b1e3177b CW	26	atomic_t count;
b1e3177b CW	27	struct mutex mutex;
64d6c500	28
c9ad602f	29	spinlock_t tree_lock;
12c255b5	30	struct active_node *cache;
64d6c500	31	struct rb_root tree;
64d6c500	32
2850748e	33	/* Preallocated "exclusive" node */
b1e3177b	34	struct i915_active_fence excl;
2850748e	35
79c7a28e	36	unsigned long flags;
274cbf20	37	#define I915_ACTIVE_RETIRE_SLEEPS BIT(0)
79c7a28e	38
12c255b5	39	int (active)(struct i915_active ref);
64d6c500	40	void (retire)(struct i915_active ref);
ce476c80	41
274cbf20 CW	42	struct work_struct work;
274cbf20 CW	43
d8af05ff	44	struct llist_head preallocated_barriers;
64d6c500 CW	45	};
	46
	47	#endif /* _I915_ACTIVE_TYPES_H_ */