ck_pr: moving PPC32 to RMO.

Signed-off-by: Joao Fernandes <mail@joaofernandes.eu>

include/gcc/ppc/ck_pr.h

@@ -80,7 +80,7 @@ ck_pr_stall(void)
 #endif /* !CK_MD_RMO && !CK_MD_PSO */
 
 CK_PR_FENCE(load_depends, "")
-CK_PR_FENCE(store, "eieio")
+CK_PR_FENCE(store, "lwsync")
 CK_PR_FENCE(load, "lwsync")
 CK_PR_FENCE(memory, "sync")
 
@@ -152,15 +152,13 @@ CK_PR_STORE_S(char, char, "stb")
 	ck_pr_cas_##N##_value(T *target, T compare, T set, T *value)	\
 	{								\
 		T previous;						\
-		__asm__ __volatile__("isync;"				\
-				     "1:"				\
+		__asm__ __volatile__("1:"				\
 				     "lwarx %0, 0, %1;"			\
 				     "cmpw  0, %0, %3;"			\
 				     "bne-  2f;"			\
 				     "stwcx. %2, 0, %1;"		\
 				     "bne-  1b;"			\
 				     "2:"				\
-				     "lwsync;"				\
 					: "=&r" (previous)		\
 					: "r"   (target),		\
 					  "r"   (set),			\
@@ -173,15 +171,13 @@ CK_PR_STORE_S(char, char, "stb")
 	ck_pr_cas_##N(T *target, T compare, T set)			\
 	{								\
 		T previous;						\
-		__asm__ __volatile__("isync;"				\
-				     "1:"				\
+		__asm__ __volatile__("1:"				\
 				     "lwarx %0, 0, %1;"			\
 				     "cmpw  0, %0, %3;"			\
 				     "bne-  2f;"			\
 				     "stwcx. %2, 0, %1;"		\
 				     "bne-  1b;"			\
 				     "2:"				\
-				     "lwsync;"				\
 					: "=&r" (previous)		\
 					: "r"   (target),		\
 					  "r"   (set),			\
@@ -202,12 +198,10 @@ CK_PR_CAS(int, int)
 	ck_pr_fas_##N(M *target, T v)				\
 	{							\
 		T previous;					\
-		__asm__ __volatile__("isync;"			\
-				     "1:"			\
+		__asm__ __volatile__("1:"			\
 				     "l" W "arx %0, 0, %1;"	\
 				     "st" W "cx. %2, 0, %1;"	\
 				     "bne- 1b;"			\
-				     "lwsync;"			\
 					: "=&r" (previous)	\
 					: "r"   (target),	\
 					  "r"   (v)		\
@@ -298,13 +292,11 @@ ck_pr_faa_ptr(void *target, uintptr_t delta)
 {
 	uintptr_t previous, r;
 
-	__asm__ __volatile__("isync;"
-			     "1:"
+	__asm__ __volatile__("1:"
 			     "lwarx %0, 0, %2;"
 			     "add %1, %3, %0;"
 			     "stwcx. %1, 0, %2;"
 			     "bne-  1b;"
-			     "lwsync;"
 				: "=&r" (previous),
 				  "=&r" (r)
 				: "r"   (target),
@@ -319,13 +311,11 @@ ck_pr_faa_ptr(void *target, uintptr_t delta)
 	ck_pr_faa_##S(T *target, T delta)				\
 	{								\
 		T previous, r;						\
-		__asm__ __volatile__("isync;"				\
-				     "1:"				\
+		__asm__ __volatile__("1:"				\
 				     "l" W "arx %0, 0, %2;"		\
 				     "add %1, %3, %0;"			\
 				     "st" W "cx. %1, 0, %2;"		\
 				     "bne-  1b;"			\
-				     "lwsync;"				\
 					: "=&r" (previous),		\
 					  "=&r" (r)			\
 					: "r"   (target),		\