Rev 1 | Rev 408 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
1 | jermar | 1 | /* |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
||
3 | * All rights reserved. |
||
4 | * |
||
5 | * Redistribution and use in source and binary forms, with or without |
||
6 | * modification, are permitted provided that the following conditions |
||
7 | * are met: |
||
8 | * |
||
9 | * - Redistributions of source code must retain the above copyright |
||
10 | * notice, this list of conditions and the following disclaimer. |
||
11 | * - Redistributions in binary form must reproduce the above copyright |
||
12 | * notice, this list of conditions and the following disclaimer in the |
||
13 | * documentation and/or other materials provided with the distribution. |
||
14 | * - The name of the author may not be used to endorse or promote products |
||
15 | * derived from this software without specific prior written permission. |
||
16 | * |
||
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
||
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
27 | */ |
||
28 | |||
29 | #ifndef __CPUID_H__ |
||
30 | #define __CPUID_H__ |
||
31 | |||
32 | #include <arch/types.h> |
||
33 | |||
34 | struct cpu_info { |
||
35 | __u32 cpuid_eax; |
||
36 | __u32 cpuid_ebx; |
||
37 | __u32 cpuid_ecx; |
||
38 | __u32 cpuid_edx; |
||
39 | } __attribute__ ((packed)); |
||
40 | |||
41 | extern int has_cpuid(void); |
||
42 | |||
348 | jermar | 43 | static inline void cpuid(__u32 cmd, struct cpu_info *info) |
44 | { |
||
45 | __asm__ volatile ( |
||
46 | "movl %4, %%eax\n" |
||
47 | "cpuid\n" |
||
48 | "movl %%eax,%0\n" |
||
49 | "movl %%ebx,%1\n" |
||
50 | "movl %%ecx,%2\n" |
||
51 | "movl %%edx,%3\n" |
||
52 | : "=m" (info->cpuid_eax), "=m" (info->cpuid_ebx), "=m" (info->cpuid_ecx), "=m" (info->cpuid_edx) |
||
53 | : "m" (cmd) |
||
54 | : "eax", "ebx", "ecx", "edx" |
||
55 | ); |
||
56 | } |
||
1 | jermar | 57 | |
58 | #endif |