Re: pchb@acpi

[Eduardo Horvath <eeh%NetBSD.org@localhost>]

On Mon, 9 Aug 2010, David Young wrote:

> What kind of segment information?
> 
> Attached is a preview of information that I supply to instances of
> pci(4), ppb(4), and cbb(4) through their device properties.  The
> information will help them manage PCI address spaces and to program
> their address windows correctly, so that I can retire rbus and
> PCI_ADDR_FIXUP, whose heuristics are incomplete.
> 
> Currently, I derive the information by scanning PCI Configuration Space.
> The system BIOS---be it OpenFirmware, ACPI, or something else---may
> supply similar information.

Take a look at this:

http://playground.sun.com/1275/bindings/pci/pci2_1.pdf

I think it would make everyone's life easier if you could encode the 
properties as close to the 1275 bindings as possible.  That would the 
amount of massaging needed to the properties OpenFirmware already 
provides.

Eduardo