alistair23-linux/arch/x86/include/asm/vgtod.h
John Stultz 650ea02475 time: Convert x86_64 to using new update_vsyscall
Switch x86_64 to using sub-ns precise vsyscall

Cc: Tony Luck <tony.luck@intel.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
2012-09-24 12:38:09 -04:00

31 lines
624 B
C

#ifndef _ASM_X86_VGTOD_H
#define _ASM_X86_VGTOD_H
#include <asm/vsyscall.h>
#include <linux/clocksource.h>
struct vsyscall_gtod_data {
seqcount_t seq;
struct { /* extract of a clocksource struct */
int vclock_mode;
cycle_t cycle_last;
cycle_t mask;
u32 mult;
u32 shift;
} clock;
/* open coded 'struct timespec' */
time_t wall_time_sec;
u64 wall_time_snsec;
u64 monotonic_time_snsec;
time_t monotonic_time_sec;
struct timezone sys_tz;
struct timespec wall_time_coarse;
struct timespec monotonic_time_coarse;
};
extern struct vsyscall_gtod_data vsyscall_gtod_data;
#endif /* _ASM_X86_VGTOD_H */