arch/x86/include/asm/time.h

   1 #ifndef _ASM_X86_TIME_H
   2 #define _ASM_X86_TIME_H
   3
   4 extern void hpet_time_init(void);
   5
   6 #include <asm/mc146818rtc.h>
   7 #ifdef CONFIG_X86_32
   8 #include <linux/efi.h>
   9
  10 static inline unsigned long native_get_wallclock(void)
  11 {
  12         unsigned long retval;
  13
  14         if (efi_enabled)
  15                 retval = efi_get_time();
  16         else
  17                 retval = mach_get_cmos_time();
  18
  19         return retval;
  20 }
  21
  22 static inline int native_set_wallclock(unsigned long nowtime)
  23 {
  24         int retval;
  25
  26         if (efi_enabled)
  27                 retval = efi_set_rtc_mmss(nowtime);
  28         else
  29                 retval = mach_set_rtc_mmss(nowtime);
  30
  31         return retval;
  32 }
  33
  34 #else
  35 extern void native_time_init_hook(void);
  36
  37 static inline unsigned long native_get_wallclock(void)
  38 {
  39         return mach_get_cmos_time();
  40 }
  41
  42 static inline int native_set_wallclock(unsigned long nowtime)
  43 {
  44         return mach_set_rtc_mmss(nowtime);
  45 }
  46
  47 #endif
  48
  49 extern void time_init(void);
  50
  51 #ifdef CONFIG_PARAVIRT
  52 #include <asm/paravirt.h>
  53 #else /* !CONFIG_PARAVIRT */
  54
  55 #define get_wallclock() native_get_wallclock()
  56 #define set_wallclock(x) native_set_wallclock(x)
  57 #define choose_time_init() hpet_time_init
  58
  59 #endif /* CONFIG_PARAVIRT */
  60
  61 extern unsigned long __init calibrate_cpu(void);
  62
  63 #endif /* _ASM_X86_TIME_H */