patch-2.4.21 linux-2.4.21/include/asm-ppc/bitops.h

• Lines: 123
• Date: 2003-06-13 07:51:38.000000000 -0700
• Orig file: linux-2.4.20/include/asm-ppc/bitops.h
• Orig date: 2001-06-11 19:15:27.000000000 -0700

diff -urN linux-2.4.20/include/asm-ppc/bitops.h linux-2.4.21/include/asm-ppc/bitops.h
@@ -1,7 +1,4 @@
 /*
- * BK Id: SCCS/s.bitops.h 1.9 05/26/01 14:48:14 paulus
- */
-/*
  * bitops.h: Bit string operations on the ppc
  */
 
@@ -11,6 +8,7 @@
 
 #include <linux/config.h>
 #include <asm/byteorder.h>
+#include <asm/atomic.h>
 
 /*
  * The test_and_*_bit operations are taken to imply a memory barrier
@@ -36,8 +34,9 @@
 	
 	__asm__ __volatile__("\n\
 1:	lwarx	%0,0,%3 \n\
-	or	%0,%0,%2 \n\
-	stwcx.	%0,0,%3 \n\
+	or	%0,%0,%2 \n"
+	PPC405_ERR77(0,%3)
+"	stwcx.	%0,0,%3 \n\
 	bne-	1b"
 	: "=&r" (old), "=m" (*p)
 	: "r" (mask), "r" (p), "m" (*p)
@@ -69,8 +68,9 @@
 
 	__asm__ __volatile__("\n\
 1:	lwarx	%0,0,%3 \n\
-	andc	%0,%0,%2 \n\
-	stwcx.	%0,0,%3 \n\
+	andc	%0,%0,%2 \n"
+	PPC405_ERR77(0,%3)
+"	stwcx.	%0,0,%3 \n\
 	bne-	1b"
 	: "=&r" (old), "=m" (*p)
 	: "r" (mask), "r" (p), "m" (*p)
@@ -96,8 +96,9 @@
 
 	__asm__ __volatile__("\n\
 1:	lwarx	%0,0,%3 \n\
-	xor	%0,%0,%2 \n\
-	stwcx.	%0,0,%3 \n\
+	xor	%0,%0,%2 \n"
+	PPC405_ERR77(0,%3)
+"	stwcx.	%0,0,%3 \n\
 	bne-	1b"
 	: "=&r" (old), "=m" (*p)
 	: "r" (mask), "r" (p), "m" (*p)
@@ -126,8 +127,9 @@
 
 	__asm__ __volatile__(SMP_WMB "\n\
 1:	lwarx	%0,0,%4 \n\
-	or	%1,%0,%3 \n\
-	stwcx.	%1,0,%4 \n\
+	or	%1,%0,%3 \n"
+	PPC405_ERR77(0,%4)
+"	stwcx.	%1,0,%4 \n\
 	bne	1b"
 	SMP_MB
 	: "=&r" (old), "=&r" (t), "=m" (*p)
@@ -158,8 +160,9 @@
 
 	__asm__ __volatile__(SMP_WMB "\n\
 1:	lwarx	%0,0,%4 \n\
-	andc	%1,%0,%3 \n\
-	stwcx.	%1,0,%4 \n\
+	andc	%1,%0,%3 \n"
+	PPC405_ERR77(0,%4)
+"	stwcx.	%1,0,%4 \n\
 	bne	1b"
 	SMP_MB
 	: "=&r" (old), "=&r" (t), "=m" (*p)
@@ -190,8 +193,9 @@
 
 	__asm__ __volatile__(SMP_WMB "\n\
 1:	lwarx	%0,0,%4 \n\
-	xor	%1,%0,%3 \n\
-	stwcx.	%1,0,%4 \n\
+	xor	%1,%0,%3 \n"
+	PPC405_ERR77(0,%4)
+"	stwcx.	%1,0,%4 \n\
 	bne	1b"
 	SMP_MB
 	: "=&r" (old), "=&r" (t), "=m" (*p)
@@ -237,8 +241,6 @@
 	return __ilog2(x & -x);
 }
 
-#ifdef __KERNEL__
-
 /*
  * ffs: find first bit set. This is defined the same way as
  * the libc and compiler builtin ffs routines, therefore
@@ -258,8 +260,6 @@
 #define hweight16(x) generic_hweight16(x)
 #define hweight8(x) generic_hweight8(x)
 
-#endif /* __KERNEL__ */
-
 /*
  * This implementation of find_{first,next}_zero_bit was stolen from
  * Linus' asm-alpha/bitops.h.
@@ -306,8 +306,6 @@
 }
 
 
-#ifdef __KERNEL__
-
 #define ext2_set_bit(nr, addr)		__test_and_set_bit((nr) ^ 0x18, addr)
 #define ext2_clear_bit(nr, addr)	__test_and_clear_bit((nr) ^ 0x18, addr)
 
@@ -371,7 +369,5 @@
 #define minix_test_bit(nr,addr) ext2_test_bit(nr,addr)
 #define minix_find_first_zero_bit(addr,size) ext2_find_first_zero_bit(addr,size)
 
-#endif	/* __KERNEL__ */
-
 #endif /* _PPC_BITOPS_H */
 #endif /* __KERNEL__ */