1/*	$NetBSD: cpufreq.h,v 1.4 2021/12/19 11:52:47 riastradh Exp $	*/
2
3/*-
4 * Copyright (c) 2013 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Taylor R. Campbell.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _LINUX_CPUFREQ_H_
33#define _LINUX_CPUFREQ_H_
34
35#include <sys/cpu.h>
36#include <sys/cpufreq.h>
37#include <sys/kmem.h>
38
39#include <machine/cpu_counter.h>
40
41struct cpufreq_policy {
42	struct {
43		unsigned int max_freq;
44	} cpuinfo;
45};
46
47static inline struct cpufreq_policy *
48cpufreq_cpu_get(int x)
49{
50	struct cpufreq_policy *policy = kmem_alloc(sizeof(*policy), KM_SLEEP);
51	policy->cpuinfo.max_freq = cpufreq_get(curcpu());
52	return policy;
53}
54
55static inline void
56cpufreq_cpu_put(struct cpufreq_policy *policy)
57{
58	kmem_free(policy, sizeof(*policy));
59}
60
61#define tsc_khz cpu_frequency(curcpu())
62
63#endif  /* _LINUX_CPUFREQ_H_ */
64