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authorIngo Molnar <mingo@elte.hu>2009-07-01 09:56:10 +0200
committerIngo Molnar <mingo@elte.hu>2009-07-01 09:56:26 +0200
commit087021ba41e9481202103d51d3dd0c4706899a2b (patch)
treebf5d67420fd176682a1f8f1e9342ad397c23937a /arch/mips/Kconfig
parentfb9c818873a788c5c01c9868cc6050df96e2c7df (diff)
parente83c2b0ff325f52dda1aff3572d0e1516216c54b (diff)
downloadlwn-087021ba41e9481202103d51d3dd0c4706899a2b.tar.gz
lwn-087021ba41e9481202103d51d3dd0c4706899a2b.zip
Merge branch 'linus' into perfcounters/urgent
Merge reason: this branch was on a .30-ish base before, update it to an almost-.31-rc2 upstream base to pick up fixes. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/mips/Kconfig')
-rw-r--r--arch/mips/Kconfig17
1 files changed, 14 insertions, 3 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index b29f0280d712..8c4be1f301cf 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -601,6 +601,7 @@ config CAVIUM_OCTEON_SIMULATOR
select SYS_SUPPORTS_64BIT_KERNEL
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_SUPPORTS_HIGHMEM
+ select SYS_SUPPORTS_HOTPLUG_CPU
select SYS_HAS_CPU_CAVIUM_OCTEON
help
The Octeon simulator is software performance model of the Cavium
@@ -615,6 +616,7 @@ config CAVIUM_OCTEON_REFERENCE_BOARD
select SYS_SUPPORTS_64BIT_KERNEL
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_SUPPORTS_HIGHMEM
+ select SYS_SUPPORTS_HOTPLUG_CPU
select SYS_HAS_EARLY_PRINTK
select SYS_HAS_CPU_CAVIUM_OCTEON
select SWAP_IO_SPACE
@@ -784,8 +786,17 @@ config SYS_HAS_EARLY_PRINTK
bool
config HOTPLUG_CPU
+ bool "Support for hot-pluggable CPUs"
+ depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
+ help
+ Say Y here to allow turning CPUs off and on. CPUs can be
+ controlled through /sys/devices/system/cpu.
+ (Note: power management support will enable this option
+ automatically on SMP systems. )
+ Say N if you want to disable CPU hotplug.
+
+config SYS_SUPPORTS_HOTPLUG_CPU
bool
- default n
config I8259
bool
@@ -2136,11 +2147,11 @@ menu "Power management options"
config ARCH_HIBERNATION_POSSIBLE
def_bool y
- depends on !SMP
+ depends on SYS_SUPPORTS_HOTPLUG_CPU
config ARCH_SUSPEND_POSSIBLE
def_bool y
- depends on !SMP
+ depends on SYS_SUPPORTS_HOTPLUG_CPU
source "kernel/power/Kconfig"