Eric Lee / smarc-fsl-linux-kernel

08 Dec, 2011

1 commit

  • 3d6240b53   x86, NMI: Add to_cpumask() to silence compile warning ... Browse Code »

    Gcc complains if we don't cast this to a struct cpumask pointer.
    arch/x86/kernel/nmi_selftest.c:93:2:

    warning: passing argument 1 of ‘cpumask_empty’ from
    incompatible pointer type [enabled by default]

    Signed-off-by: Dan Carpenter
    Cc: Don Zickus
    Link: http://lkml.kernel.org/r/20111207110612.GA3437@mwanda
    Signed-off-by: Ingo Molnar

    Dan Carpenter
     

07 Dec, 2011

1 commit

  • 565cbc3e9   x86, NMI: NMI-selftest should handle the UP case properly ... Browse Code »

    If no remote cpus are online, then just quietly skip the remote
    IPI test for now.

    Signed-off-by: Don Zickus
    Cc: andi@firstfloor.org
    Cc: torvalds@linux-foundation.org
    Cc: peterz@infradead.org
    Cc: robert.richter@amd.com
    Link: http://lkml.kernel.org/r/20111206180859.GR1669@redhat.com
    Signed-off-by: Ingo Molnar

    Don Zickus
     

05 Dec, 2011

1 commit

  • 99e8b9ca9   x86, NMI: Add NMI IPI selftest ... Browse Code »

    The previous patch modified the stop cpus path to use NMI
    instead of IRQ as the way to communicate to the other cpus to
    shutdown. There were some concerns that various machines may
    have problems with using an NMI IPI.

    This patch creates a selftest to check if NMI is working at
    boot. The idea is to help catch any issues before the machine
    panics and we learn the hard way.

    Loosely based on the locking-selftest.c file, this separate file
    runs a couple of simple tests and reports the results. The
    output looks like:

    ...
    Brought up 4 CPUs
    ----------------
    | NMI testsuite:
    --------------------
    remote IPI: ok |
    local IPI: ok |
    --------------------
    Good, all 2 testcases passed! |
    ---------------------------------
    Total of 4 processors activated (21330.61 BogoMIPS).
    ...

    Signed-off-by: Don Zickus
    Cc: Linus Torvalds
    Cc: Peter Zijlstra
    Cc: Robert Richter
    Cc: seiji.aguchi@hds.com
    Cc: vgoyal@redhat.com
    Cc: mjg@redhat.com
    Cc: tony.luck@intel.com
    Cc: gong.chen@intel.com
    Cc: satoru.moriya@hds.com
    Cc: avi@redhat.com
    Cc: Andi Kleen
    Link: http://lkml.kernel.org/r/1318533267-18880-3-git-send-email-dzickus@redhat.com
    Signed-off-by: Ingo Molnar

    Don Zickus