X-Git-Url: https://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=urcu%2Fuatomic_arch_ppc.h;fp=urcu%2Fuatomic_arch_ppc.h;h=2322c97f43fe8f6a5b0f99daf59de871d08ccc80;hp=b732b08c42389a465db3b72d8b18386357dd120f;hb=701dd8de2ad86c7078285224ba971e114b12a8c8;hpb=6abda4eb8e740540ac0623598ffaebbcb3690745

diff --git a/urcu/uatomic_arch_ppc.h b/urcu/uatomic_arch_ppc.h
index b732b08..2322c97 100644
--- a/urcu/uatomic_arch_ppc.h
+++ b/urcu/uatomic_arch_ppc.h
@@ -35,6 +35,12 @@ extern "C" {
 #endif
 #endif
 
+#ifdef __NO_LWSYNC__
+#define LWSYNC_OPCODE	"sync\n"
+#else
+#define LWSYNC_OPCODE	"lwsync\n"
+#endif
+
 #ifndef BITS_PER_LONG
 #define BITS_PER_LONG	(__SIZEOF_LONG__ * 8)
 #endif
@@ -62,7 +68,7 @@ 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 */
@@ -79,7 +85,7 @@ unsigned long _uatomic_exchange(void *addr, unsigned long val, int len)
 		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 */
@@ -113,7 +119,7 @@ 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 */
 			"bne 2f\n"		/* old, fail */
@@ -134,7 +140,7 @@ unsigned long _uatomic_cmpxchg(void *addr, unsigned long old,
 		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 */
@@ -175,7 +181,7 @@ 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 */
@@ -193,7 +199,7 @@ unsigned long _uatomic_add_return(void *addr, unsigned long val,
 		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 */