1 /* $NetBSD: i915_scheduler.h,v 1.3 2021/12/19 11:37:50 riastradh Exp $ */
2
3 /*
4 * SPDX-License-Identifier: MIT
5 *
6 * Copyright © 2018 Intel Corporation
7 */
8
9 #ifndef _I915_SCHEDULER_H_
10 #define _I915_SCHEDULER_H_
11
12 #include <linux/bitops.h>
13 #include <linux/list.h>
14 #include <linux/kernel.h>
15
16 #include "i915_scheduler_types.h"
17
18 #define priolist_for_each_request(it, plist, idx) \
19 for (idx = 0; idx < ARRAY_SIZE((plist)->requests); idx++) \
20 list_for_each_entry(it, &(plist)->requests[idx], sched.link)
21
22 #define priolist_for_each_request_consume(it, n, plist, idx) \
23 for (; \
24 (plist)->used ? (idx = __ffs((plist)->used)), 1 : 0; \
25 (plist)->used &= ~BIT(idx)) \
26 list_for_each_entry_safe(it, n, \
27 &(plist)->requests[idx], \
28 sched.link)
29
30 void i915_sched_node_init(struct i915_sched_node *node);
31 void i915_sched_node_reinit(struct i915_sched_node *node);
32
33 bool __i915_sched_node_add_dependency(struct i915_sched_node *node,
34 struct i915_sched_node *signal,
35 struct i915_dependency *dep,
36 unsigned long flags);
37
38 int i915_sched_node_add_dependency(struct i915_sched_node *node,
39 struct i915_sched_node *signal);
40
41 void i915_sched_node_fini(struct i915_sched_node *node);
42
43 void i915_schedule(struct i915_request *request,
44 const struct i915_sched_attr *attr);
45
46 void i915_schedule_bump_priority(struct i915_request *rq, unsigned int bump);
47
48 struct list_head *
49 i915_sched_lookup_priolist(struct intel_engine_cs *engine, int prio);
50
51 void __i915_priolist_free(struct i915_priolist *p);
i915_priolist_free(struct i915_priolist * p)52 static inline void i915_priolist_free(struct i915_priolist *p)
53 {
54 if (p->priority != I915_PRIORITY_NORMAL)
55 __i915_priolist_free(p);
56 }
57
58 void i915_sched_init(struct intel_engine_execlists *);
59
60 #endif /* _I915_SCHEDULER_H_ */
61