/*	$NetBSD: cpufreq.h,v 1.4 2021/12/19 11:52:47 riastradh Exp $	*/

/*-
 * Copyright (c) 2013 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Taylor R. Campbell.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _LINUX_CPUFREQ_H_
#define _LINUX_CPUFREQ_H_

#include <sys/cpu.h>
#include <sys/cpufreq.h>
#include <sys/kmem.h>

#include <machine/cpu_counter.h>

struct cpufreq_policy {
	struct {
		unsigned int max_freq;
	} cpuinfo;
};

static inline struct cpufreq_policy *
cpufreq_cpu_get(int x)
{
	struct cpufreq_policy *policy = kmem_alloc(sizeof(*policy), KM_SLEEP);
	policy->cpuinfo.max_freq = cpufreq_get(curcpu());
	return policy;
}

static inline void
cpufreq_cpu_put(struct cpufreq_policy *policy)
{
	kmem_free(policy, sizeof(*policy));
}

#define tsc_khz cpu_frequency(curcpu())

#endif  /* _LINUX_CPUFREQ_H_ */