Eric Lee / smarc-fsl-linux-kernel

29 May, 2010

1 commit

  • 267171726   intel_idle: native hardware cpuidle driver for latest Intel processors ... Browse Code »

    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
     

22 Oct, 2008

1 commit

  • 27471fdb3   i7300_idle driver v1.55 ... Browse Code »

    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
    Signed-off-by: Len Brown
    Signed-off-by: Venkatesh Pallipadi

    Andy Henroid