X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=include%2Fasm-avr32%2Fsystem.h;h=9702c2213e1e74d979fb914b286cfbfac8c1609d;hb=0afc2edfada50980bec999f94dcea26ebad3dda6;hp=a8236bacc8789133c573885d3065ba97005eebc3;hpb=ea6db58f3ea55f413c882095d2afaea8137f4f8c;p=linux-2.6-omap-h63xx.git

diff --git a/include/asm-avr32/system.h b/include/asm-avr32/system.h
index a8236bacc87..9702c2213e1 100644
--- a/include/asm-avr32/system.h
+++ b/include/asm-avr32/system.h
@@ -35,8 +35,8 @@
 #include <asm/ocd.h>
 #define finish_arch_switch(prev)			\
 	do {						\
-		__mtdr(DBGREG_PID, prev->pid);		\
-		__mtdr(DBGREG_PID, current->pid);	\
+		ocd_write(PID, prev->pid);		\
+		ocd_write(PID, current->pid);		\
 	} while(0)
 #endif
 
@@ -73,11 +73,16 @@ extern struct task_struct *__switch_to(struct task_struct *,
 
 extern void __xchg_called_with_bad_pointer(void);
 
-#ifdef __CHECKER__
-extern unsigned long __builtin_xchg(void *ptr, unsigned long x);
-#endif
+static inline unsigned long xchg_u32(u32 val, volatile u32 *m)
+{
+	u32 ret;
 
-#define xchg_u32(val, m) __builtin_xchg((void *)m, val)
+	asm volatile("xchg %[ret], %[m], %[val]"
+			: [ret] "=&r"(ret), "=m"(*m)
+			: "m"(*m), [m] "r"(m), [val] "r"(val)
+			: "memory");
+	return ret;
+}
 
 static inline unsigned long __xchg(unsigned long x,
 				       volatile void *ptr,
@@ -140,6 +145,29 @@ static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
 				   (unsigned long)(new),	\
 				   sizeof(*(ptr))))
 
+#include <asm-generic/cmpxchg-local.h>
+
+static inline unsigned long __cmpxchg_local(volatile void *ptr,
+				      unsigned long old,
+				      unsigned long new, int size)
+{
+	switch (size) {
+	case 4:
+		return __cmpxchg_u32(ptr, old, new);
+	default:
+		return __cmpxchg_local_generic(ptr, old, new, size);
+	}
+
+	return old;
+}
+
+#define cmpxchg_local(ptr, old, new)					\
+	((typeof(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(old),	\
+				   (unsigned long)(new),		\
+				   sizeof(*(ptr))))
+
+#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
+
 struct pt_regs;
 void NORET_TYPE die(const char *str, struct pt_regs *regs, long err);
 void _exception(long signr, struct pt_regs *regs, int code,