arch/i386/kernel/timers/timer_none.c

   1 #include <linux/init.h>
   2 #include <asm/timer.h>
   3
   4 static void mark_offset_none(void)
   5 {
   6         /* nothing needed */
   7 }
   8
   9 static unsigned long get_offset_none(void)
  10 {
  11         return 0;
  12 }
  13
  14 static unsigned long long monotonic_clock_none(void)
  15 {
  16         return 0;
  17 }
  18
  19 static void delay_none(unsigned long loops)
  20 {
  21         int d0;
  22         __asm__ __volatile__(
  23                 "\tjmp 1f\n"
  24                 ".align 16\n"
  25                 "1:\tjmp 2f\n"
  26                 ".align 16\n"
  27                 "2:\tdecl %0\n\tjns 2b"
  28                 :"=&a" (d0)
  29                 :"0" (loops));
  30 }
  31
  32 /* none timer_opts struct */
  33 struct timer_opts timer_none = {
  34         .name =         "none",
  35         .mark_offset =  mark_offset_none,
  36         .get_offset =   get_offset_none,
  37         .monotonic_clock =      monotonic_clock_none,
  38         .delay = delay_none,
  39 };