From: Wang Weidong <wangweidong1@huawei.com>
To: <linux@arm.linux.org.uk>
Cc: <will.deacon@arm.com>, <gregory.clement@free-electrons.com>,
<nico@linaro.org>, <linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH] ARM: Thumb-2: Fix out-of-range offset for Thumb-2 in, proc-macros.S
Date: Tue, 10 Jun 2014 15:00:01 +0800 [thread overview]
Message-ID: <5396ACF1.1020107@huawei.com> (raw)
The STR Instruction Encoding T4 points that the <imm> is in the
range 0-255.So split the instruction into two for Thumb-2. Just
like commit 874d5d3ccc("ARM: 6623/1: Thumb-2: Fix out-of-range
offset for Thumb-2 in proc-v7.S").
Signed-off-by: Wang Weidong <wangweidong1@huawei.com>
---
arch/arm/mm/proc-macros.S | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S
index ee1d805..63f710c 100644
--- a/arch/arm/mm/proc-macros.S
+++ b/arch/arm/mm/proc-macros.S
@@ -252,7 +252,9 @@
tst r3, #L_PTE_PRESENT | L_PTE_YOUNG @ present and young?
movne r2, #0 @ no -> fault
- str r2, [r0, #2048]! @ hardware version
+ ARM( str r2, [r0, #2048]! ) @ hardware version
+ THUMB( add r0, r0, #2048 )
+ THUMB( str r2, [r0] )
mov ip, #0
mcr p15, 0, r0, c7, c10, 1 @ clean L1 D line
mcr p15, 0, ip, c7, c10, 4 @ data write barrier
--
1.7.12
next reply other threads:[~2014-06-10 7:02 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-10 7:00 Wang Weidong [this message]
2014-06-16 13:49 ` [PATCH] ARM: Thumb-2: Fix out-of-range offset for Thumb-2 in, proc-macros.S Will Deacon
2014-06-17 1:23 ` Wang Weidong
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