0,0 → 1,60 |
/* |
* Copyright (C) 2001-2004 Ondrej Palkovsky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - 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. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 __CPUID_H__ |
#define __CPUID_H__ |
|
#include <arch/types.h> |
|
struct cpu_info { |
__u32 cpuid_eax; |
__u32 cpuid_ebx; |
__u32 cpuid_ecx; |
__u32 cpuid_edx; |
} __attribute__ ((packed)); |
|
extern int has_cpuid(void); |
|
static inline void cpuid(__u32 cmd, cpu_info_t *info) |
{ |
__asm__ ( |
"movl %1, %eax" |
"cpuid" |
"movl %eax, 0(%0)" |
"movl %ebx, 4(%0)" |
"movl %ecx, 8(%0)" |
"movl %edx, 12(%0)" |
: "=m"(info) |
: "r"(cmd) |
: "%eax","%ebx","%ecx","%edx" |
); |
} |
|
extern __u64 rdtsc(void); |
|
#endif |