[SCM] GNU Mach branch, master, updated. v1.8-598-g2b4486d2

[Samuel Thibault]

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       via  29564c619f33702033ecf0a86caac7a294f1887f (commit)
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- Log -----------------------------------------------------------------
commit 2b4486d281efc9ee70c3e23a416b6ca5c43ba6ca
Author: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date:   Tue Mar 7 01:06:11 2023 +0100

    apic: Drop declaration of inexisting function

commit 29564c619f33702033ecf0a86caac7a294f1887f
Author: Damien Zammit <damien@zamaudio.com>
Date:   Mon Mar 6 07:05:03 2023 +0000

    lapic timer: Calibrate via mach timer not PIT
    
    Previously the lapic timer was calibrated by one-shot PIT timer2.
    This method can be buggy and generally unused in emulation environments.
    This patch reworks the timer calibration to use a mach timer based
    on regular PIT interrupts to remapped IOAPIC pin.
    This also changes the primary clock source to use PIT timer0 remapped
    to an IOAPIC pin when APIC mode is enabled, instead of a periodic lapic
    timer.
    Message-Id: <20230306070452.292697-1-damien@zamaudio.com>

-----------------------------------------------------------------------

Summary of changes:
 i386/i386/apic.h        |  4 +--
 i386/i386at/ioapic.c    | 81 ++++++++++++++++++++++++++++---------------------
 i386/i386at/model_dep.c |  8 +++--
 3 files changed, 54 insertions(+), 39 deletions(-)


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