27471fdb32
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>
17 lines
404 B
Plaintext
17 lines
404 B
Plaintext
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menu "Memory power savings"
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config I7300_IDLE_IOAT_CHANNEL
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bool
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config I7300_IDLE
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tristate "Intel chipset idle power saving driver"
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select I7300_IDLE_IOAT_CHANNEL
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depends on X86_64
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help
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Enable idle power savings with certain Intel server chipsets.
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The chipset must have I/O AT support, such as the Intel 7300.
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The power savings depends on the type and quantity of DRAM devices.
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endmenu
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