arch/arm64/include/asm/vdso_datapage.h

   1 /*
   2  * Copyright (C) 2012 ARM Limited
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15  */
  16 #ifndef __ASM_VDSO_DATAPAGE_H
  17 #define __ASM_VDSO_DATAPAGE_H
  18
  19 #ifdef __KERNEL__
  20
  21 #ifndef __ASSEMBLY__
  22
  23 #ifndef _VDSO_WTM_CLOCK_SEC_T
  24 #define _VDSO_WTM_CLOCK_SEC_T
  25 typedef __u64 vdso_wtm_clock_nsec_t;
  26 #endif
  27
  28 #ifndef _VDSO_XTIME_CLOCK_SEC_T
  29 #define _VDSO_XTIME_CLOCK_SEC_T
  30 typedef __u64 vdso_xtime_clock_sec_t;
  31 #endif
  32
  33 #ifndef _VDSO_RAW_TIME_SEC_T
  34 #define _VDSO_RAW_TIME_SEC_T
  35 typedef __u64 vdso_raw_time_sec_t;
  36 #endif
  37
  38 struct vdso_data {
  39         __u64 cs_cycle_last;    /* Timebase at clocksource init */
  40         vdso_raw_time_sec_t raw_time_sec;       /* Raw time */
  41         __u64 raw_time_nsec;
  42         vdso_xtime_clock_sec_t xtime_clock_sec; /* Kernel time */
  43         __u64 xtime_clock_snsec;
  44         __u64 xtime_coarse_sec; /* Coarse time */
  45         __u64 xtime_coarse_nsec;
  46         __u64 wtm_clock_sec;    /* Wall to monotonic time */
  47         vdso_wtm_clock_nsec_t wtm_clock_nsec;
  48         __u32 tb_seq_count;     /* Timebase sequence counter */
  49         /* cs_* members must be adjacent and in this order (ldp accesses) */
  50         __u32 cs_mono_mult;     /* NTP-adjusted clocksource multiplier */
  51         __u32 cs_shift;         /* Clocksource shift (mono = raw) */
  52         __u32 cs_raw_mult;      /* Raw clocksource multiplier */
  53         __u32 tz_minuteswest;   /* Whacky timezone stuff */
  54         __u32 tz_dsttime;
  55         __u32 use_syscall;
  56 };
  57
  58 #endif /* !__ASSEMBLY__ */
  59
  60 #endif /* __KERNEL__ */
  61
  62 #endif /* __ASM_VDSO_DATAPAGE_H */