X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Fasm-m68knommu%2Fbitops.h;h=6f3685eab44c7f88818451d76599f934661a8785;hb=414f746d232d41ed6ae8632c4495ae795373c44b;hp=c142fbf2f376b0abc4767f5c6c048130d5fcd8f2;hpb=93890b71a34f9490673a6edd56b61c2124215e46;p=linux-2.6

diff --git a/include/asm-m68knommu/bitops.h b/include/asm-m68knommu/bitops.h
index c142fbf2f3..6f3685eab4 100644
--- a/include/asm-m68knommu/bitops.h
+++ b/include/asm-m68knommu/bitops.h
@@ -14,8 +14,38 @@
 #error only <linux/bitops.h> can be included directly
 #endif
 
+#if defined (__mcfisaaplus__) || defined (__mcfisac__)
+static inline int ffs(unsigned int val)
+{
+        if (!val)
+                return 0;
+
+        asm volatile(
+                        "bitrev %0\n\t"
+                        "ff1 %0\n\t"
+                        : "=d" (val)
+                        : "0" (val)
+		    );
+        val++;
+        return val;
+}
+
+static inline int __ffs(unsigned int val)
+{
+        asm volatile(
+                        "bitrev %0\n\t"
+                        "ff1 %0\n\t"
+                        : "=d" (val)
+                        : "0" (val)
+		    );
+        return val;
+}
+
+#else
 #include <asm-generic/bitops/ffs.h>
 #include <asm-generic/bitops/__ffs.h>
+#endif
+
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/ffz.h>