diff options
Diffstat (limited to 'arch/m68k/include/asm/div64.h')
| -rw-r--r-- | arch/m68k/include/asm/div64.h | 37 |
1 files changed, 33 insertions, 4 deletions
diff --git a/arch/m68k/include/asm/div64.h b/arch/m68k/include/asm/div64.h index d211d9f5427..edb66148a71 100644 --- a/arch/m68k/include/asm/div64.h +++ b/arch/m68k/include/asm/div64.h @@ -1,5 +1,34 @@ -#ifdef __uClinux__ -#include "div64_no.h" +#ifndef _M68K_DIV64_H +#define _M68K_DIV64_H + +#ifdef CONFIG_MMU + +#include <linux/types.h> + +/* n = n / base; return rem; */ + +#define do_div(n, base) ({ \ + union { \ + unsigned long n32[2]; \ + unsigned long long n64; \ + } __n; \ + unsigned long __rem, __upper; \ + \ + __n.n64 = (n); \ + if ((__upper = __n.n32[0])) { \ + asm ("divul.l %2,%1:%0" \ + : "=d" (__n.n32[0]), "=d" (__upper) \ + : "d" (base), "0" (__n.n32[0])); \ + } \ + asm ("divu.l %2,%1:%0" \ + : "=d" (__n.n32[1]), "=d" (__rem) \ + : "d" (base), "1" (__upper), "0" (__n.n32[1])); \ + (n) = __n.n64; \ + __rem; \ +}) + #else -#include "div64_mm.h" -#endif +#include <asm-generic/div64.h> +#endif /* CONFIG_MMU */ + +#endif /* _M68K_DIV64_H */ |