* [PATCH] arm64: Change kernel stack size to 16K.
@ 2013-07-23 17:52 Feng Kan
2013-07-24 11:41 ` Catalin Marinas
0 siblings, 1 reply; 2+ messages in thread
From: Feng Kan @ 2013-07-23 17:52 UTC (permalink / raw)
To: linux-arm-kernel
Written by Catalin Marinas, tested by APM on storm platform. This is needed
because of the failures encountered when running SpecWeb benchmark test.
Signed-off-by: Feng Kan <fkan@apm.com>
Acked-by: Kumar Sankaran <ksankaran@apm.com>
---
arch/arm64/include/asm/thread_info.h | 4 ++--
arch/arm64/kernel/entry.S | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/include/asm/thread_info.h b/arch/arm64/include/asm/thread_info.h
index 3659e46..23a3c47 100644
--- a/arch/arm64/include/asm/thread_info.h
+++ b/arch/arm64/include/asm/thread_info.h
@@ -24,10 +24,10 @@
#include <linux/compiler.h>
#ifndef CONFIG_ARM64_64K_PAGES
-#define THREAD_SIZE_ORDER 1
+#define THREAD_SIZE_ORDER 2
#endif
-#define THREAD_SIZE 8192
+#define THREAD_SIZE 16384
#define THREAD_START_SP (THREAD_SIZE - 16)
#ifndef __ASSEMBLY__
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 1d13142..6ad781b 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -121,7 +121,7 @@
.macro get_thread_info, rd
mov \rd, sp
- and \rd, \rd, #~((1 << 13) - 1) // top of 8K stack
+ and \rd, \rd, #~(THREAD_SIZE - 1) // top of stack
.endm
/*
--
1.7.6.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH] arm64: Change kernel stack size to 16K.
2013-07-23 17:52 [PATCH] arm64: Change kernel stack size to 16K Feng Kan
@ 2013-07-24 11:41 ` Catalin Marinas
0 siblings, 0 replies; 2+ messages in thread
From: Catalin Marinas @ 2013-07-24 11:41 UTC (permalink / raw)
To: linux-arm-kernel
On Tue, Jul 23, 2013 at 06:52:31PM +0100, Feng Kan wrote:
> Written by Catalin Marinas, tested by APM on storm platform. This is needed
> because of the failures encountered when running SpecWeb benchmark test.
>
> Signed-off-by: Feng Kan <fkan@apm.com>
> Acked-by: Kumar Sankaran <ksankaran@apm.com>
Thanks.
--
Catalin
^ permalink raw reply [flat|nested] 2+ messages in thread
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2013-07-24 11:41 ` Catalin Marinas
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