Eric Lee / smarc-fsl-linux-kernel

19 Feb, 2014

1 commit

  • 67bad2fdb   cpu: add generic support for CPU feature based module autoloading ... Browse Code »

    This patch adds support for advertising optional CPU features over udev
    using the modalias, and for declaring compatibility with/dependency upon
    such a feature in a module.

    The mapping between feature numbers and actual features should be provided
    by the architecture in a file called which exports the
    following functions/macros:
    - cpu_feature(FEAT), a preprocessor macro that maps token FEAT to a
    numeric index;
    - bool cpu_have_feature(n), returning whether this CPU has support for
    feature #n;
    - MAX_CPU_FEATURES, an upper bound for 'n' in the previous function.

    The feature can then be enabled by setting CONFIG_GENERIC_CPU_AUTOPROBE
    for the architecture.

    For instance, a module that registers its module init function using

    module_cpu_feature_match(FEAT_X, module_init_function)

    will be probed automatically when the CPU's support for the 'FEAT_X'
    feature is advertised over udev, and will only allow the module to be
    loaded by hand if the 'FEAT_X' feature is supported.

    Signed-off-by: Ard Biesheuvel
    Signed-off-by: Greg Kroah-Hartman

    Ard Biesheuvel
     

04 Jul, 2013

1 commit

  • 3bdbb62fe   rapidio: add udev notification ... Browse Code »

    Add RapidIO-specific modalias generation to enable udev notifications
    about RapidIO-specific events.

    The RapidIO modalias string format is shown below:

    "rapidio:vNNNNdNNNNavNNNNadNNNN"

    Where:
    v - Device Vendor ID (16 bit),
    d - Device ID (16 bit),
    av - Assembly Vendor ID (16 bit),
    ad - Assembly ID (16 bit),

    as they are reported in corresponding Capability Registers (CARs)
    of each RapidIO device.

    Signed-off-by: Alexandre Bounine
    Cc: Matt Porter
    Cc: Li Yang
    Cc: Kumar Gala
    Cc: Andre van Herk
    Cc: Micha Nelissen
    Cc: Stef van Os
    Cc: Jean Delvare
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alexandre Bounine
     

29 Mar, 2013

1 commit

  • e5354107e   mei: bus: Initial MEI Client bus type implementation ... Browse Code »

    mei client bus will present some of the mei clients
    as devices for other standard subsystems

    Implement the probe, remove, match, device addtion routines, along with
    the sysfs and uevent ones. mei_cl_device_id is also added to
    mod_devicetable.h
    A mei-cleint-bus.txt document describing the rationale and the API usage
    is also added while ABI/testing/sysfs-bus-mei describeis the modalias ABI.

    Signed-off-by: Samuel Ortiz
    Signed-off-by: Tomas Winkler
    Signed-off-by: Greg Kroah-Hartman

    Samuel Ortiz
     

25 Jan, 2013

1 commit