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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2005-11-03 15:48:21 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-11-03 15:48:21 +0000
commit4a5f79e7e65d24d2fa9eb6e6208672571704d337 (patch)
tree44364e64ba8cedf3fbc5c3bb5c79b669dba0c1fd /arch/arm/mm
parent06024f217d607369f0ee0071034ebb03071d5fb2 (diff)
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[ARM SMP] Add configuration option for ARMv6K processors
The 'K' extension adds several new instructions to the ARMv6 ISA which are primerily useful for SMP. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm')
-rw-r--r--arch/arm/mm/Kconfig12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 5568403e984d..e3c14d6b4328 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -250,6 +250,18 @@ config CPU_V6
select CPU_COPY_V6
select CPU_TLB_V6
+# ARMv6k
+config CPU_32v6K
+ bool "Support ARM V6K processor extensions" if !SMP
+ depends on CPU_V6
+ default y if SMP
+ help
+ Say Y here if your ARMv6 processor supports the 'K' extension.
+ This enables the kernel to use some instructions not present
+ on previous processors, and as such a kernel build with this
+ enabled will not boot on processors with do not support these
+ instructions.
+
# Figure out what processor architecture version we should be using.
# This defines the compiler instruction set which depends on the machine type.
config CPU_32v3