include/asm-ppc/div64.h

   1 #ifndef __PPC_DIV64
   2 #define __PPC_DIV64
   3
   4 #include <linux/types.h>
   5
   6 extern u32 __div64_32(u64 *dividend, u32 div);
   7
   8 #define do_div(n, div)  ({                      \
   9         u64 __n = (n);                          \
  10         u32 __d = (div);                        \
  11         u32 __q, __r;                           \
  12         if ((__n >> 32) == 0) {                 \
  13                 __q = (u32)__n / __d;           \
  14                 __r = (u32)__n - __q * __d;     \
  15                 (n) = __q;                      \
  16         } else {                                \
  17                 __r = __div64_32(&__n, __d);    \
  18                 (n) = __n;                      \
  19         }                                       \
  20         __r;                                    \
  21 })
  22
  23 #endif