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Message-Id: <200209061708.g86H88as092198@freefall.freebsd.org>
From: John Baldwin <jhb@FreeBSD.org>
Date: Fri, 6 Sep 2002 10:08:08 -0700 (PDT)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/i386/include pci_cfgreg.h src/sys/i386/pci
         pci_bus.c pci_cfgreg.c
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jhb         2002/09/06 10:08:08 PDT

  Modified files:
    sys/i386/include     pci_cfgreg.h 
    sys/i386/pci         pci_bus.c pci_cfgreg.c 
  Log:
  - Add a pci_cfgintr_valid() function to see if a given IRQ is a valid
    IRQ for an entry in a PCIBIOS interrupt routing ($PIR) table.
  - Change pci_cfgintr() to except the current IRQ of a device as a fourth
    argument and to use that IRQ for the device if it is valid.
  - If an intpin entry in a $PIR entry has a link of 0, it means that that
    intpin isn't connected to anything that can trigger an interrupt.  Thus,
    test the link against 0 to find invalid entries in the table instead of
    implicitly relying on the irqs field to be zero.  In the machines I have
    looked at, intpin entries with a link of 0 often have the bits for all
    possible interrupts for PCI devices set.
  
  Revision  Changes    Path
  1.7       +1 -1      src/sys/i386/include/pci_cfgreg.h
  1.86      +2 -1      src/sys/i386/pci/pci_bus.c
  1.90      +33 -1     src/sys/i386/pci/pci_cfgreg.c

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