From: Ralf Baechle <ralf@linux-mips.org>
Date: Fri, 13 Oct 2006 10:32:50 +0000 (+0100)
Subject: [MIPS] Don't use R10000 llsc workaround version for all llsc-full processors.
X-Git-Tag: v3.12-rc1~31920^2~20^2~244^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=904880e717c5466041485ca6d6e8c6c1ef06d0fd;p=kernel%2Fkernel-generic.git

[MIPS] Don't use R10000 llsc workaround version for all llsc-full processors.

Found and original patch by bile@landofbile.com.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

diff --git a/include/asm-mips/system.h b/include/asm-mips/system.h
index dcb4701..3056fee 100644
--- a/include/asm-mips/system.h
+++ b/include/asm-mips/system.h
@@ -392,7 +392,7 @@ static inline unsigned long __cmpxchg_u64(volatile int * m, unsigned long old,
 {
 	__u64 retval;
 
-	if (cpu_has_llsc) {
+	if (cpu_has_llsc && R10000_LLSC_WAR) {
 		__asm__ __volatile__(
 		"	.set	push					\n"
 		"	.set	noat					\n"