arch/x86/include/asm/vgtod.h

   1 #ifndef _ASM_X86_VGTOD_H
   2 #define _ASM_X86_VGTOD_H
   3
   4 #include <asm/vsyscall.h>
   5 #include <linux/clocksource.h>
   6
   7 struct vsyscall_gtod_data {
   8         seqlock_t       lock;
   9
  10         /* open coded 'struct timespec' */
  11         time_t          wall_time_sec;
  12         u32             wall_time_nsec;
  13
  14         int             sysctl_enabled;
  15         struct timezone sys_tz;
  16         struct { /* extract of a clocksource struct */
  17                 cycle_t (*vread)(void);
  18                 cycle_t cycle_last;
  19                 cycle_t mask;
  20                 u32     mult;
  21                 u32     shift;
  22         } clock;
  23         struct timespec wall_to_monotonic;
  24 };
  25 extern struct vsyscall_gtod_data __vsyscall_gtod_data
  26 __section_vsyscall_gtod_data;
  27 extern struct vsyscall_gtod_data vsyscall_gtod_data;
  28
  29 #endif /* _ASM_X86_VGTOD_H */