diff mbox series

[2/2] Revert "MIPS: asm: local: add barriers for Loongson"

Message ID 20200202170052.14012-2-git@xen0n.name (mailing list archive)
State Rejected
Headers show
Series [1/2] MIPS: loongson3-llsc-check: Downgrade failures to notices | expand

Commit Message

WANG Xuerui Feb. 2, 2020, 5 p.m. UTC 
From: Huacai Chen <chenhc@lemote.com>

This reverts commit 3e86460ebe2340df6a33b35a55312cc369bdcbd0.

Local ops don't need SYNCs before LL because there is only one writer,
the erratum is not triggered.

The LLSCCHK violations are made not to fail the build in the previous
patch so just revert the additions.

[git@xen0n.name: Massaged commit message.]

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Wang Xuerui <git@xen0n.name>
---
 arch/mips/include/asm/local.h | 4 ----
 1 file changed, 4 deletions(-)
diff mbox series

Patch

diff --git a/arch/mips/include/asm/local.h b/arch/mips/include/asm/local.h
index fef0fda8f82f..02783e141c32 100644
--- a/arch/mips/include/asm/local.h
+++ b/arch/mips/include/asm/local.h
@@ -37,7 +37,6 @@  static __inline__ long local_add_return(long i, local_t * l)
 		__asm__ __volatile__(
 		"	.set	push					\n"
 		"	.set	arch=r4000				\n"
-			__SYNC(full, loongson3_war) "			\n"
 		"1:"	__LL	"%1, %2		# local_add_return	\n"
 		"	addu	%0, %1, %3				\n"
 			__SC	"%0, %2					\n"
@@ -53,7 +52,6 @@  static __inline__ long local_add_return(long i, local_t * l)
 		__asm__ __volatile__(
 		"	.set	push					\n"
 		"	.set	"MIPS_ISA_ARCH_LEVEL"			\n"
-			__SYNC(full, loongson3_war) "			\n"
 		"1:"	__LL	"%1, %2		# local_add_return	\n"
 		"	addu	%0, %1, %3				\n"
 			__SC	"%0, %2					\n"
@@ -86,7 +84,6 @@  static __inline__ long local_sub_return(long i, local_t * l)
 		__asm__ __volatile__(
 		"	.set	push					\n"
 		"	.set	arch=r4000				\n"
-			__SYNC(full, loongson3_war) "			\n"
 		"1:"	__LL	"%1, %2		# local_sub_return	\n"
 		"	subu	%0, %1, %3				\n"
 			__SC	"%0, %2					\n"
@@ -102,7 +99,6 @@  static __inline__ long local_sub_return(long i, local_t * l)
 		__asm__ __volatile__(
 		"	.set	push					\n"
 		"	.set	"MIPS_ISA_ARCH_LEVEL"			\n"
-			__SYNC(full, loongson3_war) "			\n"
 		"1:"	__LL	"%1, %2		# local_sub_return	\n"
 		"	subu	%0, %1, %3				\n"
 			__SC	"%0, %2					\n"