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authorAndy Henroid <andrew.d.henroid@intel.com>2008-10-09 11:45:22 -0700
committerLen Brown <len.brown@intel.com>2008-10-21 23:58:41 -0400
commit27471fdb32e77ecb92f09d4ac5757785b4dc33bc (patch)
tree2895d9918c019f48db32d479a2fc9f8725a3ed6e /drivers/idle/Kconfig
parentc7d87d79d14cecab7a34dedf1b133377cf5a0203 (diff)
downloadlinux-27471fdb32e77ecb92f09d4ac5757785b4dc33bc.tar.bz2
i7300_idle driver v1.55
The Intel 7300 Memory Controller supports dynamic throttling of memory which can be used to save power when system is idle. This driver does the memory throttling when all CPUs are idle on such a system. Refer to "Intel 7300 Memory Controller Hub (MCH)" datasheet for the config space description. Signed-off-by: Andy Henroid <andrew.d.henroid@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Diffstat (limited to 'drivers/idle/Kconfig')
-rw-r--r--drivers/idle/Kconfig16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/idle/Kconfig b/drivers/idle/Kconfig
new file mode 100644
index 000000000000..f5b26dd579e4
--- /dev/null
+++ b/drivers/idle/Kconfig
@@ -0,0 +1,16 @@
+
+menu "Memory power savings"
+
+config I7300_IDLE_IOAT_CHANNEL
+ bool
+
+config I7300_IDLE
+ tristate "Intel chipset idle power saving driver"
+ select I7300_IDLE_IOAT_CHANNEL
+ depends on X86_64
+ help
+ Enable idle power savings with certain Intel server chipsets.
+ The chipset must have I/O AT support, such as the Intel 7300.
+ The power savings depends on the type and quantity of DRAM devices.
+
+endmenu