patch-2_6_7-vs1_9_1_12

[linux-2.6.git] / include / asm-ppc64 / bitops.h

diff --git a/include/asm-ppc64/bitops.h b/include/asm-ppc64/bitops.h
index 3f053b6..feeeb9b 100644 (file)
--- a/include/asm-ppc64/bitops.h
+++ b/include/asm-ppc64/bitops.h
@@ -154,6 +154,20 @@ static __inline__ int test_and_change_bit(unsigned long nr, volatile unsigned lo
        return (old & mask) != 0;
 }
 
+static __inline__ void set_bits(unsigned long mask, unsigned long *addr)
+{
+       unsigned long old;
+
+       __asm__ __volatile__(
+"1:    ldarx   %0,0,%3         # set_bit\n\
+       or      %0,%0,%2\n\
+       stdcx.  %0,0,%3\n\
+       bne-    1b"
+       : "=&r" (old), "=m" (*addr)
+       : "r" (mask), "r" (addr), "m" (*addr)
+       : "cc");
+}
+
 /*
  * non-atomic versions
  */