[patch] ioapic-2.4.5-A1

From: Ingo Molnar (mingo@elte.hu)
Date: Tue May 29 2001 - 06:11:08 EST

the attached ioapic-2.4.5-A1 patch includes a number of important IO-APIC
related fixes (against 2.4.5-ac3):

 - correctly handle bridged devices that are not listed in the mptable
   directly. This fixes eg. dual-port eepro100 devices on Compaq boxes
   with such PCI layout:

    -+-[0d]---0b.0
     +-[05]-+-02.0
     | \-0b.0
     \-[00]-+-02.0
            +-03.0-[01]--+-04.0 <=== eth0
            | \-05.0 <=== eth1
            +-0b.0
            +-0c.0
            +-0d.0
            +-0e.0
            +-0f.0
            +-14.0
            +-14.1
            +-19.0
            +-1a.0
            \-1b.0

   without the patch the eepro100 devices get misdetected as XT-PIC IRQs
   and their interrupts are stuck.

 - the srcbus entry in the mptable does not have to be translated into
   a PCI-bus value.

 - add more APIC versions to the whitelist

 - initialize mp_bus_id_to_pci_bus[] correctly, so that we can detect
   nonlisted/bridged PCI busses more accurately.

the patch should only affect systems that were not working properly
before, but it might break broken-mptable systems - we'll see.

        Ingo


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

This archive was generated by hypermail 2b29 : Thu May 31 2001 - 21:00:39 EST