X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Fasm-m68knommu%2Fsystem.h;h=64c64432bbb80248c44ddfc34a6cc98beff938e1;hb=95dfec6ae1cb8c03406aac612a5642cbddb676b3;hp=1bd1142685e18f5dd916c0dcf838fe1e3c2435df;hpb=ebc283118ee448dcb6e6cae74a8a43f17a1ccc3f;p=linux-2.6

diff --git a/include/asm-m68knommu/system.h b/include/asm-m68knommu/system.h
index 1bd1142685..64c64432bb 100644
--- a/include/asm-m68knommu/system.h
+++ b/include/asm-m68knommu/system.h
@@ -104,8 +104,7 @@ asmlinkage void resume(void);
 #define mb()   asm volatile (""   : : :"memory")
 #define rmb()  asm volatile (""   : : :"memory")
 #define wmb()  asm volatile (""   : : :"memory")
-#define set_rmb(var, value)    do { xchg(&var, value); } while (0)
-#define set_mb(var, value)     set_rmb(var, value)
+#define set_mb(var, value)	({ (var) = (value); wmb(); })
 
 #ifdef CONFIG_SMP
 #define smp_mb()	mb()
@@ -187,42 +186,19 @@ static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int siz
 }
 #endif
 
+#include <asm-generic/cmpxchg-local.h>
+
 /*
- * Atomic compare and exchange.  Compare OLD with MEM, if identical,
- * store NEW in MEM.  Return the initial value in MEM.  Success is
- * indicated by comparing RETURN with OLD.
+ * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
+ * them available.
  */
-#define __HAVE_ARCH_CMPXCHG	1
-
-static __inline__ unsigned long
-cmpxchg(volatile int *p, int old, int new)
-{
-	unsigned long flags;
-	int prev;
-
-	local_irq_save(flags);
-	if ((prev = *p) == old)
-		*p = new;
-	local_irq_restore(flags);
-	return(prev);
-}
-
+#define cmpxchg_local(ptr, o, n)				  	       \
+	((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
+			(unsigned long)(n), sizeof(*(ptr))))
+#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
 
-#ifdef CONFIG_M68332
-#define HARD_RESET_NOW() ({		\
-        local_irq_disable();		\
-        asm("				\
-	movew   #0x0000, 0xfffa6a;	\
-        reset;				\
-        /*movew #0x1557, 0xfffa44;*/	\
-        /*movew #0x0155, 0xfffa46;*/	\
-        moveal #0, %a0;			\
-        movec %a0, %vbr;		\
-        moveal 0, %sp;			\
-        moveal 4, %a0;			\
-        jmp (%a0);			\
-        ");				\
-})
+#ifndef CONFIG_SMP
+#include <asm-generic/cmpxchg.h>
 #endif
 
 #if defined( CONFIG_M68328 ) || defined( CONFIG_M68EZ328 ) || \