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1da177e4 LT |
1 | #ifndef _ASM_X86_64_VSYSCALL_H_ |
2 | #define _ASM_X86_64_VSYSCALL_H_ | |
3 | ||
1da177e4 LT |
4 | enum vsyscall_num { |
5 | __NR_vgettimeofday, | |
6 | __NR_vtime, | |
c08c8205 | 7 | __NR_vgetcpu, |
1da177e4 LT |
8 | }; |
9 | ||
10 | #define VSYSCALL_START (-10UL << 20) | |
11 | #define VSYSCALL_SIZE 1024 | |
12 | #define VSYSCALL_END (-2UL << 20) | |
103efcd9 | 13 | #define VSYSCALL_MAPPED_PAGES 1 |
1da177e4 LT |
14 | #define VSYSCALL_ADDR(vsyscall_nr) (VSYSCALL_START+VSYSCALL_SIZE*(vsyscall_nr)) |
15 | ||
16 | #ifdef __KERNEL__ | |
75da736f | 17 | #include <linux/seqlock.h> |
1da177e4 | 18 | |
c08c8205 | 19 | #define __section_vgetcpu_mode __attribute__ ((unused, __section__ (".vgetcpu_mode"), aligned(16))) |
1da177e4 | 20 | #define __section_jiffies __attribute__ ((unused, __section__ (".jiffies"), aligned(16))) |
1da177e4 | 21 | |
7460ed28 | 22 | /* Definitions for CONFIG_GENERIC_TIME definitions */ |
23 | #define __section_vsyscall_gtod_data __attribute__ \ | |
24 | ((unused, __section__ (".vsyscall_gtod_data"),aligned(16))) | |
2aae950b AK |
25 | #define __section_vsyscall_clock __attribute__ \ |
26 | ((unused, __section__ (".vsyscall_clock"),aligned(16))) | |
7460ed28 | 27 | #define __vsyscall_fn __attribute__ ((unused,__section__(".vsyscall_fn"))) |
1da177e4 | 28 | |
c08c8205 VP |
29 | #define VGETCPU_RDTSCP 1 |
30 | #define VGETCPU_LSL 2 | |
31 | ||
c08c8205 | 32 | extern int __vgetcpu_mode; |
1da177e4 | 33 | extern volatile unsigned long __jiffies; |
1da177e4 LT |
34 | |
35 | /* kernel space (writeable) */ | |
c08c8205 | 36 | extern int vgetcpu_mode; |
1da177e4 | 37 | extern struct timezone sys_tz; |
1da177e4 LT |
38 | |
39 | #endif /* __KERNEL__ */ | |
40 | ||
41 | #endif /* _ASM_X86_64_VSYSCALL_H_ */ |