Merge branch 'omap-pool'

[linux-2.6-omap-h63xx.git] / arch / m68k / include / asm / div64.h

diff --git a/arch/m68k/include/asm/div64.h b/arch/m68k/include/asm/div64.h
index d211d9f54276766317f725a168f0461008381b1f..edb66148a71dc85886e3112d9af2f08019d7856e 100644 (file)
--- 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 */