xnu-6153.101.6.tar.gz

[apple/xnu.git] / osfmk / i386 / machine_cpu.h

/*
 * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 *
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 *
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 *
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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 */
#ifndef _I386_MACHINE_CPU_H_
#define _I386_MACHINE_CPU_H_

#include <mach/mach_types.h>
#include <mach/boolean.h>
#include <kern/kern_types.h>
#include <pexpert/pexpert.h>
#include <sys/cdefs.h>

__BEGIN_DECLS
void    cpu_machine_init(
	void);

void    handle_pending_TLB_flushes(
	void);

int cpu_signal_handler(x86_saved_state_t *regs);

kern_return_t cpu_register(
	int *slot_nump);
__END_DECLS

static inline void
cpu_halt(void)
{
	asm volatile ( "wbinvd; cli; hlt");
}

static inline void
cpu_pause(void)
{
	__builtin_ia32_pause();
}

#endif /* _I386_MACHINE_CPU_H_ */