1/*
2 * Copyright (c) 2018 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28
29#ifndef KPERF_LAZY_H
30#define KPERF_LAZY_H
31
32#include <stdbool.h>
33#include <stdint.h>
34#include <kern/thread.h>
35
36extern unsigned int kperf_lazy_wait_action;
37extern unsigned int kperf_lazy_cpu_action;
38
39void kperf_lazy_reset(void);
40void kperf_lazy_off_cpu(thread_t thread);
41void kperf_lazy_make_runnable(thread_t thread, bool in_interrupt);
42void kperf_lazy_wait_sample(thread_t thread,
43 thread_continue_t continuation, uintptr_t *starting_fp);
44void kperf_lazy_cpu_sample(thread_t thread, unsigned int flags, bool interrupt);
45
46/* accessors for configuration */
47int kperf_lazy_get_wait_action(void);
48int kperf_lazy_get_cpu_action(void);
49int kperf_lazy_set_wait_action(int action_id);
50int kperf_lazy_set_cpu_action(int action_id);
51uint64_t kperf_lazy_get_wait_time_threshold(void);
52uint64_t kperf_lazy_get_cpu_time_threshold(void);
53int kperf_lazy_set_wait_time_threshold(uint64_t threshold);
54int kperf_lazy_set_cpu_time_threshold(uint64_t threshold);
55
56#endif /* !defined(KPERF_LAZY_H) */
57