| H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 1 | #ifndef _ASM_X86_VSYSCALL_H |
| 2 | #define _ASM_X86_VSYSCALL_H |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | enum vsyscall_num { |
| 5 | __NR_vgettimeofday, |
| 6 | __NR_vtime, |
| Vojtech Pavlik | c08c820 | 2006-09-26 10:52:28 +0200 | [diff] [blame] | 7 | __NR_vgetcpu, |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | }; |
| 9 | |
| 10 | #define VSYSCALL_START (-10UL << 20) |
| 11 | #define VSYSCALL_SIZE 1024 |
| 12 | #define VSYSCALL_END (-2UL << 20) |
| Ernie Petrides | 103efcd | 2006-12-07 02:14:09 +0100 | [diff] [blame] | 13 | #define VSYSCALL_MAPPED_PAGES 1 |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | #define VSYSCALL_ADDR(vsyscall_nr) (VSYSCALL_START+VSYSCALL_SIZE*(vsyscall_nr)) |
| 15 | |
| 16 | #ifdef __KERNEL__ |
| David Woodhouse | 75da736 | 2006-09-16 12:15:48 -0700 | [diff] [blame] | 17 | #include <linux/seqlock.h> |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | |
| john stultz | 7460ed2 | 2007-02-16 01:28:21 -0800 | [diff] [blame] | 19 | /* Definitions for CONFIG_GENERIC_TIME definitions */ |
| Steven Rostedt | 23adec5 | 2008-05-12 21:20:41 +0200 | [diff] [blame] | 20 | #define __vsyscall_fn \ |
| 21 | __attribute__ ((unused, __section__(".vsyscall_fn"))) notrace |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | |
| Vojtech Pavlik | c08c820 | 2006-09-26 10:52:28 +0200 | [diff] [blame] | 23 | #define VGETCPU_RDTSCP 1 |
| 24 | #define VGETCPU_LSL 2 |
| 25 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | /* kernel space (writeable) */ |
| Vojtech Pavlik | c08c820 | 2006-09-26 10:52:28 +0200 | [diff] [blame] | 27 | extern int vgetcpu_mode; |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | extern struct timezone sys_tz; |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | |
| Andy Lutomirski | 8c49d9a | 2011-05-23 09:31:24 -0400 | [diff] [blame] | 30 | #include <asm/vvar.h> |
| 31 | |
| Ingo Molnar | e402644 | 2008-01-30 13:32:39 +0100 | [diff] [blame] | 32 | extern void map_vsyscall(void); |
| 33 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | #endif /* __KERNEL__ */ |
| 35 | |
| H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 36 | #endif /* _ASM_X86_VSYSCALL_H */ |