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| author | Paul Mundt <lethal@linux-sh.org> | 2006-09-27 18:22:14 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2006-09-27 18:22:14 +0900 |
| commit | a6a31139897a5e539efe7ad3b7bd351fa9673ce8 (patch) | |
| tree | 6e2ad11d93ab95214694038080c79284c6da30d6 /arch/sh/Kconfig.debug | |
| parent | 2cb7ce3bb384f30a377f66336c78546b834604df (diff) | |
| download | lwn-a6a31139897a5e539efe7ad3b7bd351fa9673ce8.tar.gz lwn-a6a31139897a5e539efe7ad3b7bd351fa9673ce8.zip | |
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.debug | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug index f0188e626be0..48479e014dac 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 |