multiple separate pci bridges ...
geert at linux-m68k.org
Mon Jan 19 21:08:42 EST 2004
On Mon, 19 Jan 2004, Benjamin Herrenschmidt wrote:
> > I am returning 0 for all of function 0. I dropped the whole struct
> > pci_dev ressource thingy, and they are well nullified. My limited
> > understanding of those pci issues let me make a guess though. I think
> > that either the stuff in the struct pci_dev is set later on (the BARs
> > are modifiable i think), or those values are read from the struct
> > pci_dev before i nullify them.
> pci_dev resources are read from the BARs and the sizing mecanism
> uses the BARs too (you should filter out writes too btw). If you
> properly filter things out, there should be no problem.
So shouldn't reads from the BAR return -1 instead of 0, and writes be ignored?
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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