/*
|
* 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>
|
|
#include "i915_utils.h"
|
|
struct i915_active_fence {
|
struct dma_fence __rcu *fence;
|
struct dma_fence_cb cb;
|
};
|
|
struct active_node;
|
|
#define I915_ACTIVE_MAY_SLEEP BIT(0)
|
|
#define __i915_active_call __aligned(4)
|
#define i915_active_may_sleep(fn) ptr_pack_bits(&(fn), I915_ACTIVE_MAY_SLEEP, 2)
|
|
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_ */
|
