cvs commit: src/sys/dev/pci pci_pci.c

Bernd Walter ticso at cicely12.cicely.de
Fri Feb 18 21:48:05 GMT 2005


On Fri, Feb 18, 2005 at 05:35:03PM +0000, Warner Losh wrote:
> imp         2005-02-18 17:35:03 UTC
> 
>   FreeBSD src repository
> 
>   Modified files:
>     sys/dev/pci          pci_pci.c 
>   Log:
>   For the I/O port case, we need to set ok to 1 if we have what looks
>   like a valid range.  We already do this in the memory case (although
>   the code there is somewhat different than the I/o case because we have
>   to deal with different kinds of memory).  Since most laptops don't
>   have non-subtractive bridges, this wasn't seen in practice.

Does that mean we do check ranges on pci bridges?
I can remember having troubles with alpha systems where io ranges in
PCI chips behind PCI-PCI bridges looked valid by themself, but in fact
no IO range is configured on bridges.
  
-- 
B.Walter                   BWCT                http://www.bwct.de
bernd at bwct.de                                  info at bwct.de



More information about the cvs-src mailing list