---1247997369-996308181-894300720=:8848
Content-Type: TEXT/PLAIN; charset=US-ASCII
(this patch is against vanilla 2.1.99 or pre100-1)
Changes:
smp.c:
- changes the APIC timer code to use divisor of 1, this has
zero effect on functionality and speed, but should work
better with very early local-APIC revisions.
irq.c:
- moves ack_APIC() to after the handler has finished executing.
this has definitely fixed the spurious interrupts seen by Jes
Sorensen on his HIPPI driver. (there were more spurious
interrupts than real interrupts ...)
io_apic.c:
- adds support for 'ExtINT' interrupts. Some boards only work
with ExtINT timer IRQs. (thanks to Brian Perkins for testing
this out).
- fixes yet another MP-BIOS anomaly, when a board reports an INT
timer IRQ, but timer IRQ works only as ExtINT. (ugh)
- includes the workaround implemented by io-apic-patch-2.1.97-A,
this workaround has made a difference for several beta testers.
It changes 'high-active+level' IRQ sources to 'high-active+edge'
type sources. This combination is only present in buggy BIOSes.
- generic cleanup, streamlined code, __initfunc()-ed functions,
documentation fixes.
- (io_apic.c still has way too much log output, but until all
boards work 100%, i'd like to keep it this way)
with this patch the I/O APIC code is again back to '100% of boards
boot fine' status, please let me know if i've missed something
and/or if some SMP board still doesnt boot. The patch was sanity
booted on several systems, with and without the mentioned BIOS bugs.
'2.1.99+io-apic-patch-2.1.99-E' is now the 'latest and greatest' IO-APIC
code.
-- mingo
---1247997369-996308181-894300720=:8848
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