diff options
Diffstat (limited to 'arch/x86/include/asm/vgtod.h')
| -rw-r--r-- | arch/x86/include/asm/vgtod.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/x86/include/asm/vgtod.h b/arch/x86/include/asm/vgtod.h new file mode 100644 index 00000000000..38fd1336402 --- /dev/null +++ b/arch/x86/include/asm/vgtod.h @@ -0,0 +1,29 @@ +#ifndef ASM_X86__VGTOD_H +#define ASM_X86__VGTOD_H + +#include <asm/vsyscall.h> +#include <linux/clocksource.h> + +struct vsyscall_gtod_data { + seqlock_t lock; + + /* open coded 'struct timespec' */ + time_t wall_time_sec; + u32 wall_time_nsec; + + int sysctl_enabled; + struct timezone sys_tz; + struct { /* extract of a clocksource struct */ + cycle_t (*vread)(void); + cycle_t cycle_last; + cycle_t mask; + u32 mult; + u32 shift; + } clock; + struct timespec wall_to_monotonic; +}; +extern struct vsyscall_gtod_data __vsyscall_gtod_data +__section_vsyscall_gtod_data; +extern struct vsyscall_gtod_data vsyscall_gtod_data; + +#endif /* ASM_X86__VGTOD_H */ |