X-Git-Url: https://git.liburcu.org/?a=blobdiff_plain;f=urcu%2Fuatomic_arch_ppc.h;h=bb74934fb19a279dfe43d7f1785ea89865756193;hb=85b577030e0dd244ed2d42aa5196a088e1e64dbb;hp=68b5faaf7c0510f41455bb4ac1b08edbccda8102;hpb=7d413817f09b2d17b1a79ea012590609ffab5eb6;p=urcu.git

diff --git a/urcu/uatomic_arch_ppc.h b/urcu/uatomic_arch_ppc.h
index 68b5faa..bb74934 100644
--- a/urcu/uatomic_arch_ppc.h
+++ b/urcu/uatomic_arch_ppc.h
@@ -21,28 +21,20 @@
  */
 
 #include <urcu/compiler.h>
+#include <urcu/system.h>
 
-#ifndef __SIZEOF_LONG__
-#ifdef __powerpc64__
-#define __SIZEOF_LONG__ 8
-#else
-#define __SIZEOF_LONG__ 4
-#endif
-#endif
+#ifdef __cplusplus
+extern "C" {
+#endif 
 
-#ifndef BITS_PER_LONG
-#define BITS_PER_LONG	(__SIZEOF_LONG__ * 8)
+#ifdef __NO_LWSYNC__
+#define LWSYNC_OPCODE	"sync\n"
+#else
+#define LWSYNC_OPCODE	"lwsync\n"
 #endif
 
 #define ILLEGAL_INSTR	".long	0xd00d00"
 
-#define uatomic_set(addr, v)				\
-do {							\
-	ACCESS_ONCE(*(addr)) = (v);			\
-} while (0)
-
-#define uatomic_read(addr)	ACCESS_ONCE(*(addr))
-
 /*
  * Using a isync as second barrier for exchange to provide acquire semantic.
  * According to uatomic_ops/sysdeps/gcc/powerpc.h, the documentation is "fairly
@@ -61,7 +53,7 @@ unsigned long _uatomic_exchange(void *addr, unsigned long val, int len)
 		unsigned int result;
 
 		__asm__ __volatile__(
-			"lwsync\n"
+			LWSYNC_OPCODE
 		"1:\t"	"lwarx %0,0,%1\n"	/* load and reserve */
 			"stwcx. %2,0,%1\n"	/* else store conditional */
 			"bne- 1b\n"	 	/* retry if lost reservation */
@@ -72,13 +64,13 @@ unsigned long _uatomic_exchange(void *addr, unsigned long val, int len)
 
 		return result;
 	}
-#if (BITS_PER_LONG == 64)
+#if (CAA_BITS_PER_LONG == 64)
 	case 8:
 	{
 		unsigned long result;
 
 		__asm__ __volatile__(
-			"lwsync\n"
+			LWSYNC_OPCODE
 		"1:\t"	"ldarx %0,0,%1\n"	/* load and reserve */
 			"stdcx. %2,0,%1\n"	/* else store conditional */
 			"bne- 1b\n"	 	/* retry if lost reservation */
@@ -112,9 +104,9 @@ unsigned long _uatomic_cmpxchg(void *addr, unsigned long old,
 		unsigned int old_val;
 
 		__asm__ __volatile__(
-			"lwsync\n"
+			LWSYNC_OPCODE
 		"1:\t"	"lwarx %0,0,%1\n"	/* load and reserve */
-			"cmpd %0,%3\n"		/* if load is not equal to */
+			"cmpw %0,%3\n"		/* if load is not equal to */
 			"bne 2f\n"		/* old, fail */
 			"stwcx. %2,0,%1\n"	/* else store conditional */
 			"bne- 1b\n"	 	/* retry if lost reservation */
@@ -127,13 +119,13 @@ unsigned long _uatomic_cmpxchg(void *addr, unsigned long old,
 
 		return old_val;
 	}
-#if (BITS_PER_LONG == 64)
+#if (CAA_BITS_PER_LONG == 64)
 	case 8:
 	{
 		unsigned long old_val;
 
 		__asm__ __volatile__(
-			"lwsync\n"
+			LWSYNC_OPCODE
 		"1:\t"	"ldarx %0,0,%1\n"	/* load and reserve */
 			"cmpd %0,%3\n"		/* if load is not equal to */
 			"bne 2f\n"		/* old, fail */
@@ -141,7 +133,7 @@ unsigned long _uatomic_cmpxchg(void *addr, unsigned long old,
 			"bne- 1b\n"	 	/* retry if lost reservation */
 			"isync\n"
 		"2:\n"
-				: "=&r"(old_val),
+				: "=&r"(old_val)
 				: "r"(addr), "r"((unsigned long)_new),
 				  "r"((unsigned long)old)
 				: "memory", "cc");
@@ -174,7 +166,7 @@ unsigned long _uatomic_add_return(void *addr, unsigned long val,
 		unsigned int result;
 
 		__asm__ __volatile__(
-			"lwsync\n"
+			LWSYNC_OPCODE
 		"1:\t"	"lwarx %0,0,%1\n"	/* load and reserve */
 			"add %0,%2,%0\n"	/* add val to value loaded */
 			"stwcx. %0,0,%1\n"	/* store conditional */
@@ -186,13 +178,13 @@ unsigned long _uatomic_add_return(void *addr, unsigned long val,
 
 		return result;
 	}
-#if (BITS_PER_LONG == 64)
+#if (CAA_BITS_PER_LONG == 64)
 	case 8:
 	{
 		unsigned long result;
 
 		__asm__ __volatile__(
-			"lwsync\n"
+			LWSYNC_OPCODE
 		"1:\t"	"ldarx %0,0,%1\n"	/* load and reserve */
 			"add %0,%2,%0\n"	/* add val to value loaded */
 			"stdcx. %0,0,%1\n"	/* store conditional */
@@ -218,17 +210,10 @@ unsigned long _uatomic_add_return(void *addr, unsigned long val,
 						  (unsigned long)(v),	\
 						  sizeof(*(addr))))
 
-/* uatomic_sub_return, uatomic_add, uatomic_sub, uatomic_inc, uatomic_dec */
-
-#define uatomic_sub_return(addr, v)	uatomic_add_return((addr), -(v))
-
-#define uatomic_add(addr, v)		(void)uatomic_add_return((addr), (v))
-#define uatomic_sub(addr, v)		(void)uatomic_sub_return((addr), (v))
-
-#define uatomic_inc(addr)		uatomic_add((addr), 1)
-#define uatomic_dec(addr)		uatomic_add((addr), -1)
+#ifdef __cplusplus 
+}
+#endif
 
-#define URCU_CAS_AVAIL()	1
-#define compat_uatomic_cmpxchg(ptr, old, _new)	uatomic_cmpxchg(ptr, old, _new)
+#include <urcu/uatomic_generic.h>
 
 #endif /* _URCU_ARCH_UATOMIC_PPC_H */