/*      $NetBSD: x86_64-asm.S,v 1.7 2019/05/21 05:29:21 mlelstv 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>

/* From sys/arch/x86/include/cpufunc.h */
#define OPTERON_MSR_PASSCODE    0x9c5a203aU

       .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_xgetbv)
       xorl    %ecx, %ecx
       xgetbv
       ret

ENTRY(x86_identify)
       movl    $-1,%eax
       ret