X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Kernel%2Farch%2Farm7%2Finclude%2Flock.h;h=627726b568f7f009125e6d697616016f2bd6ecd6;hb=3733a77bb073c6c22e674bebe22a6f4f9a2b5225;hp=5a6708623bf4af36aeca3c1ae2e076376e4a7647;hpb=5473eb360038564028bd9afa0193f5841ab628cd;p=tpg%2Facess2.git

diff --git a/Kernel/arch/arm7/include/lock.h b/Kernel/arch/arm7/include/lock.h
index 5a670862..627726b5 100644
--- a/Kernel/arch/arm7/include/lock.h
+++ b/Kernel/arch/arm7/include/lock.h
@@ -26,6 +26,7 @@ static inline int CPU_HAS_LOCK(struct sShortSpinlock *Lock)
 
 static inline int SHORTLOCK(struct sShortSpinlock *Lock)
 {
+	#if 1
 	// Coped from linux, yes, but I know what it does now :)
 	Uint	tmp;
 	__asm__ __volatile__ (
@@ -38,6 +39,15 @@ static inline int SHORTLOCK(struct sShortSpinlock *Lock)
 		: "r" (&Lock->Lock), "r" (1)
 		: "cc"	// Condition codes clobbered
 		);
+	#else
+	 int	v = 1;
+	while( v )
+		__asm__ __volatile__ (
+			"swp %0, [%1]"
+			: "=r" (v) : "r" (&Lock->Lock)
+			: "cc"
+			);
+	#endif
 	return 1;
 }