NetBSD-5.0.2/usr.sbin/cpuctl/arch/x86_64-asm.S

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/*	$NetBSD: x86_64-asm.S,v 1.2 2008/10/19 15:22:17 christos Exp $	*/

/*-
 * Copyright (c) 2007 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * 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.
 */

#include <machine/asm.h>

	.data

_C_LABEL(cpu):
	.long	0
	.globl	_C_LABEL(cpu)
_C_LABEL(cpu_info_level):
	.long	-1
	.globl	_C_LABEL(cpu_info_level)

	.text

ENTRY(x86_cpuid2)
	pushq	%rbx
	movq	%rdi, %rax
	movq	%rsi, %rcx
	movq	%rdx, %rsi
	cpuid
	movl	%eax, 0(%rsi)
	movl	%ebx, 4(%rsi)
	movl	%ecx, 8(%rsi)
	movl	%edx, 12(%rsi)
	popq	%rbx
	ret

ENTRY(x86_identify)
	pushq	%rbx
	cpuid
	movl	%eax, PIC_GOT(_C_LABEL(cpu_info_level))
	popq	%rbx
	ret