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