On Thu, 2003-06-05 at 03:39, Alan Cox wrote:
> > Your BIOS did not set the PCI cache line size correctly. The kernel
> > caught that mistake, and fixed it.
> I can't find anywhere the BIOS is obliged to set it for you if a PnP OS
> is installed, ditto in the presence of any form of hotplug the test is
> As far as I can see you can only warn if MWI is already set in the
> control word, and (I'd have to check the spec) possibly if the
> cache line size is non zero.
I don't know how PnP OS plays into it, but the last time I dug into this
deep dark area, the BIOS was expected to setup the cache line size for
all PCI devices in the system.
I do specifically remember situations, involving Acenic cards, where
one Acenic card would have things setup correctly but for whatever
reason the BIOS decided not to init the other Acenic cards.
-- David S. Miller <firstname.lastname@example.org> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to email@example.com More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Sat Jun 07 2003 - 22:00:26 EST