LXR linux/arch/cris/include/arch-v32/arch/delay.h

   1#ifndef _ASM_CRIS_ARCH_DELAY_H
   2#define _ASM_CRIS_ARCH_DELAY_H
   3
   4extern void cris_delay10ns(u32 n10ns);
   5#define udelay(u) cris_delay10ns((u)*100)
   6#define ndelay(n) cris_delay10ns(((n)+9)/10)
   7
   8/*
   9 * Not used anymore for udelay or ndelay.  Referenced by
  10 * e.g. init/calibrate.c.  All other references are likely bugs;
  11 * should be replaced by mdelay, udelay or ndelay.
  12 */
  13
  14static inline void
  15__delay(int loops)
  16{
  17        __asm__ __volatile__ (
  18                "move.d %0, $r9\n\t"
  19                "beq 2f\n\t"
  20                "subq 1, $r9\n\t"
  21                "1:\n\t"
  22                "bne 1b\n\t"
  23                "subq 1, $r9\n"
  24                "2:"
  25                : : "g" (loops) : "r9");
  26}
  27
  28#endif /* _ASM_CRIS_ARCH_DELAY_H */
  29