2671717265
This EXPERIMENTAL driver supersedes acpi_idle on Intel Atom Processors, Intel Core i3/i5/i7 Processors and associated Intel Xeon processors. It does not support the Intel Core2 processor or earlier. For kernels configured with ACPI, CONFIG_INTEL_IDLE=y allows intel_idle to probe before the ACPI processor driver. Booting with "intel_idle.max_cstate=0" disables intel_idle and the system will fall back on ACPI's "acpi_idle". Typical Linux distributions load ACPI processor module early, making CONFIG_INTEL_IDLE=m not easily useful on ACPI platforms. intel_idle probes all processors at module_init time. Processors that are hot-added later will be limited to using C1 in idle. Signed-off-by: Len Brown <len.brown@intel.com>
30 lines
839 B
Plaintext
30 lines
839 B
Plaintext
config INTEL_IDLE
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tristate "Cpuidle Driver for Intel Processors"
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depends on CPU_IDLE
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depends on X86
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depends on CPU_SUP_INTEL
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depends on EXPERIMENTAL
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help
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Enable intel_idle, a cpuidle driver that includes knowledge of
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native Intel hardware idle features. The acpi_idle driver
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can be configured at the same time, in order to handle
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processors intel_idle does not support.
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menu "Memory power savings"
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depends on X86_64
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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 memory power saving driver"
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select I7300_IDLE_IOAT_CHANNEL
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depends on EXPERIMENTAL
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help
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Enable memory power savings when idle with certain Intel server
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chipsets. The chipset must have I/O AT support, such as the
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Intel 7300. The power savings depends on the type and quantity of
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DRAM devices.
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endmenu
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