From: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Sun, 13 Jun 2010 21:30:04 +0000 (-0400)
Subject: Remove unused sync_core() definitions
X-Git-Tag: v0.4.5~8
X-Git-Url: https://git.liburcu.org/?p=urcu.git;a=commitdiff_plain;h=a2c502feb1f1510eef3234168bc16a98404694bf

Remove unused sync_core() definitions

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/urcu/arch_generic.h b/urcu/arch_generic.h
index e9b1b82..0484618 100644
--- a/urcu/arch_generic.h
+++ b/urcu/arch_generic.h
@@ -121,10 +121,6 @@ extern "C" {
 #define cpu_relax()	 barrier()
 #endif
 
-#ifndef sync_core
-#define sync_core()	 mb()
-#endif
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/urcu/arch_ppc.h b/urcu/arch_ppc.h
index eeeb753..185cb22 100644
--- a/urcu/arch_ppc.h
+++ b/urcu/arch_ppc.h
@@ -34,11 +34,6 @@ extern "C" {
 
 #define mb()    asm volatile("sync":::"memory")
 
-/*
- * Serialize core instruction execution. Also acts as a compiler barrier.
- */
-#define sync_core()	asm volatile("isync" : : : "memory")
-
 #define mftbl()						\
 	({ 						\
 		unsigned long rval;			\
diff --git a/urcu/arch_x86.h b/urcu/arch_x86.h
index 64cc026..e3171a2 100644
--- a/urcu/arch_x86.h
+++ b/urcu/arch_x86.h
@@ -47,20 +47,6 @@ extern "C" {
 
 #define cpu_relax()	asm volatile("rep; nop" : : : "memory");
 
-/*
- * Serialize core instruction execution. Also acts as a compiler barrier.
- * On PIC ebx cannot be clobbered
- */
-#ifdef __PIC__
-#define sync_core()							  \
-	asm volatile("push %%ebx; cpuid; pop %%ebx"			  \
-		     : : : "memory", "eax", "ecx", "edx");
-#endif
-#ifndef __PIC__
-#define sync_core()							  \
-	asm volatile("cpuid" : : : "memory", "eax", "ebx", "ecx", "edx");
-#endif
-
 #define rdtscll(val)							  \
 	do {						  		  \
 	     unsigned int __a, __d;					  \