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[PATCH v5 3/4] Loongson-2F: Flush the branch target history in BTB and R

from [Wu Zhangjin] [Permanent Link][Original]
To: Ralf Baechle <ralf@linux-mips.org>
Subject: [PATCH v5 3/4] Loongson-2F: Flush the branch target history in BTB and RAS (cont.)
From: Wu Zhangjin <wuzhangjin@gmail.com>
Date: Sat, 10 Apr 2010 20:07:01 +0800
Cc: Wu Zhangjin <wuzhangjin@gmail.com>, linux-mips <linux-mips@linux-mips.org>
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In-reply-to: <cover.1270882402.git.wuzhangjin@gmail.com>
Organization: DSLab, Lanzhou University, China
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <cover.1270882402.git.wuzhangjin@gmail.com>
References: <cover.1270882402.git.wuzhangjin@gmail.com>
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Sender: linux-mips-bounce@linux-mips.org 
From: Wu Zhangjin <wuzhangjin@gmail.com>

This patch uses the new option CONFIG_CPU_JUMP_WORKAROUNDS introduced
from "Loongson: Add CPU_LOONGSON2F_WORKAROUNDS" to enable the
workarounds for the necessary loongson series(2F01/02).

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
---
 arch/mips/include/asm/stackframe.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/mips/include/asm/stackframe.h 
b/arch/mips/include/asm/stackframe.h
index c841912..58730c5 100644
--- a/arch/mips/include/asm/stackframe.h
+++ b/arch/mips/include/asm/stackframe.h
@@ -121,7 +121,7 @@
                .endm
 #else
                .macro  get_saved_sp    /* Uniprocessor variation */
-#ifdef CONFIG_CPU_LOONGSON2F
+#ifdef CONFIG_CPU_JUMP_WORKAROUNDS
                /*
                 * Clear BTB (branch target buffer), forbid RAS (return address
                 * stack) to workaround the Out-of-order Issue in Loongson2F
-- 
1.7.0.1
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