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1 | /* |
1 | /* |
2 | * Copyright (C) 2001-2004 Ondrej Palkovsky |
2 | * Copyright (C) 2001-2004 Ondrej Palkovsky |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
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 |
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. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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 |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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 |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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 |
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. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | #ifndef __CPUID_H__ |
29 | #ifndef __CPUID_H__ |
30 | #define __CPUID_H__ |
30 | #define __CPUID_H__ |
31 | 31 | ||
32 | #include <arch/types.h> |
32 | #include <arch/types.h> |
33 | 33 | ||
- | 34 | #define AMD_CPUID_EXTENDED 0x80000001 |
|
- | 35 | #define AMD_EXT_NOEXECUTE 20 |
|
- | 36 | ||
34 | struct cpu_info { |
37 | struct cpu_info { |
35 | __u32 cpuid_eax; |
38 | __u32 cpuid_eax; |
36 | __u32 cpuid_ebx; |
39 | __u32 cpuid_ebx; |
37 | __u32 cpuid_ecx; |
40 | __u32 cpuid_ecx; |
38 | __u32 cpuid_edx; |
41 | __u32 cpuid_edx; |
39 | } __attribute__ ((packed)); |
42 | } __attribute__ ((packed)); |
40 | 43 | ||
41 | extern int has_cpuid(void); |
44 | extern int has_cpuid(void); |
42 | 45 | ||
43 | static inline void cpuid(__u32 cmd, cpu_info_t *info) |
46 | extern void cpuid(__u32 cmd, cpu_info_t *info); |
44 | { |
47 | |
45 | __asm__ ( |
- | |
46 | "movl %1, %eax" |
- | |
47 | "cpuid" |
- | |
48 | "movl %eax, 0(%0)" |
- | |
49 | "movl %ebx, 4(%0)" |
- | |
50 | "movl %ecx, 8(%0)" |
- | |
51 | "movl %edx, 12(%0)" |
- | |
52 | : "=m"(info) |
- | |
53 | : "r"(cmd) |
- | |
54 | : "%eax","%ebx","%ecx","%edx" |
- | |
55 | ); |
- | |
56 | } |
- | |
57 | 48 | ||
58 | extern __u64 rdtsc(void); |
49 | extern __u64 rdtsc(void); |
59 | 50 | ||
60 | #endif |
51 | #endif |
61 | 52 |