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    SubjectRe: ACPI on Averatec 2370
    On Fri, 3 Aug 2007, Linus Torvalds wrote:

    > > MSR_K8_ENABLE_C1E lo == 0x04c14015
    > > MSR_K8_ENABLE_C1E hi == 0x00000000
    > > lo & ENABLE_C1E_MASK == 0
    > And yeah, that claims that C1E is not on, but:
    > > amd_apic_timer_broken: forcing return value of 1

    So it seems my initial debugging report was, err, incomplete. I failed to
    notice that the amd_apic_timer_broken function was getting called twice,
    once for each core.

    The second call shows this:

    MSR_K8_ENABLE_C1E == 0x14c14015

    which causes our ENABLE_C1E_MASK check to be true and thus properly
    return 1 from the function. So when we call the above function from
    init_amd we prolly need to do a

    set_bit(X86_FEATURE_LAPIC_TIMER_BROKEN, c->x86_capability);

    for each core if any of them happen to return true upon checking for a
    broken timer.

    Andi, does that seem right?

    Cal Peake

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      Last update: 2007-08-08 00:21    [W:0.020 / U:26.312 seconds]
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