patch-2.3.10 linux/arch/sparc64/lib/atomic.S

• Lines: 33
• Date: Sun Jul 4 09:53:12 1999
• Orig file: v2.3.9/linux/arch/sparc64/lib/atomic.S
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.9/linux/arch/sparc64/lib/atomic.S linux/arch/sparc64/lib/atomic.S
@@ -0,0 +1,32 @@
+/* $Id: atomic.S,v 1.1 1999/07/03 22:11:04 davem Exp $
+ * atomic.S: These things are too big to do inline.
+ *
+ * Copyright (C) 1999 David S. Miller (davem@redhat.com)
+ */
+
+#include <asm/asi.h>
+
+	.text
+	.align	64
+
+	.globl	__atomic_add
+__atomic_add:
+	lduw	[%g1], %g5
+	add	%g5, %g2, %g7
+	cas	[%g1], %g5, %g7
+	cmp	%g5, %g7
+	bne,pn	%icc, __atomic_add
+	 nop
+	jmpl	%g3 + 8, %g0
+	 add	%g7, %g2, %g2
+
+	.globl	__atomic_sub
+__atomic_sub:
+	lduw	[%g1], %g5
+	sub	%g5, %g2, %g7
+	cas	[%g1], %g5, %g7
+	cmp	%g5, %g7
+	bne,pn	%icc, __atomic_sub
+	 nop
+	jmpl	%g3 + 8, %g0
+	 sub	%g7, %g2, %g2