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authorVenkatesh Pallipadi <venkatesh.pallipadi@intel.com>2005-07-29 16:15:00 -0700
committerTony Luck <tony.luck@intel.com>2005-08-26 15:09:24 -0700
commit4db8699bcfa8faddb5727b1cb010a4d9b8a42e8c (patch)
treeeb4cb14927ed9cf4507f875cd69fe35f87b3b3bc /arch/ia64/Kconfig
parentfd589e0b662c1ea8cfb1e0d20d60a2510979865b (diff)
downloadop-kernel-dev-4db8699bcfa8faddb5727b1cb010a4d9b8a42e8c.zip
op-kernel-dev-4db8699bcfa8faddb5727b1cb010a4d9b8a42e8c.tar.gz
[IA64] Add ACPI based P-state support
Patch to support P-state transitions on ia64. This driver is based on ACPI, and uses the ACPI processor driver interface to find out the P-state support information for the processor. This driver plugs into generic cpufreq infrastructure. Once this driver is loaded successfully, ondemand/userspace governor can be used to change the CPU frequency dynamically based on load or on request from userspace process. Refer : ACPI specification - http://www.acpi.info P-state related PAL calls - http://developer.intel.com/design/itanium/downloads/24869909.pdf Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/Kconfig')
-rw-r--r--arch/ia64/Kconfig6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 8098813..3deced6 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -383,6 +383,12 @@ source "drivers/acpi/Kconfig"
endif
+if PM
+
+source "arch/ia64/kernel/cpufreq/Kconfig"
+
+endif
+
endmenu
if !IA64_HP_SIM
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