cvs commit: src/sys/dev/acpica acpi_pci_link.c

[John Baldwin]

On Tuesday 22 November 2005 09:37 am, Ruslan Ermilov wrote:
> On Mon, Nov 21, 2005 at 10:01:16PM +0000, John Baldwin wrote:
> > jhb         2005-11-21 22:01:16 UTC
> >
> >   FreeBSD src repository
> >
> >   Modified files:
> >     sys/dev/acpica       acpi_pci_link.c
> >   Log:
> >   Fix the code to look up the BIOS IRQ for a given link device by reading
> >   the IRQ set by the BIOS in existing devices to actually get the correct
> >   bus number of the child PCI bus.  I was not reading the bus number from
> >   the bridge device correctly.  The __BUS_ACCESSOR() macros (from which
> >   pcib_get_bus() is built) assume that the passed in argument is a child
> >   device.  However, at the time I'm reading the bus there is no child
> >   device yet, so I was passing in the pcib device as the child device.
> >   The parent of the pcib device probably returned an error in the case of
> >   a host bridge, thus resulting in random stack garbage for the bus
> > number. For PCI-PCI bridges, the bus number being used was actually the
> > subvendor of the PCI-PCI bridge device itself.
> >
> >   MFC after:      1 week
> >
> >   Revision  Changes    Path
> >   1.49      +15 -3     src/sys/dev/acpica/acpi_pci_link.c
>
> Looks like I no longer need these hw.pci.link.LNK[A-D].irq=11
> in /boot/loader.conf after this change.

Woah, that's a good fix then.  This was on a T43?

-- 
John Baldwin <jhb at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org