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authorPaul Mundt <lethal@linux-sh.org>2006-09-27 18:22:14 +0900
committerPaul Mundt <lethal@linux-sh.org>2006-09-27 18:22:14 +0900
commita6a31139897a5e539efe7ad3b7bd351fa9673ce8 (patch)
tree6e2ad11d93ab95214694038080c79284c6da30d6 /arch/sh/Kconfig.debug
parent2cb7ce3bb384f30a377f66336c78546b834604df (diff)
downloadlinux-2.6.34-ux500-a6a31139897a5e539efe7ad3b7bd351fa9673ce8.tar.gz
sh: Add support for 4K stacks.
This enables support for 4K stacks on SH. Currently this depends on DEBUG_KERNEL, but likely all boards will switch to this as the default in the future. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/Kconfig.debug')
-rw-r--r--arch/sh/Kconfig.debug10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index f0188e626be..48479e014da 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -46,6 +46,16 @@ config DEBUG_STACK_USAGE
This option will slow down process creation somewhat.
+config 4KSTACKS
+ bool "Use 4Kb for kernel stacks instead of 8Kb"
+ depends on DEBUG_KERNEL
+ help
+ If you say Y here the kernel will use a 4Kb stacksize for the
+ kernel stack attached to each process/thread. This facilitates
+ running more threads on a system and also reduces the pressure
+ on the VM subsystem for higher order allocations. This option
+ will also use IRQ stacks to compensate for the reduced stackspace.
+
config KGDB
bool "Include KGDB kernel debugger"
select FRAME_POINTER