On Monday, January 5, 2009 12:30 pm Michał Mirosław wrote: > Some BIOSes hide 'overflow' device (dev #6) for i82875P/PE chipsets. > The same happens for i82865P/PE. Add a quirk to enable this device. > This allows i82875 EDAC driver to bind to chipset's dev #6 and not > dev #0 as the latter is used by AGP driver. > > After testing this patch for couple of days on my laptop (i82856P) > it looks like something is resetting device 0 (MCH) config register > 0xF4 to zero and effectively disabling the device again. The delay > looks random to me. I can easily update the register using > 'hexedit /sys/bus/pci/devices/0000\:00\:00.0/config' and see > correct values in lspci output afterwards. This is probably > BIOS's fault. This changes nothing as far as i82875P EDAC driver > is concerned as it has the same assumption that BIOS is well behaved. > > In case some really broken BIOS is found, this can be wrapped around > some new Kconfig #ifdef. > > Signed-off-by: Michał Mirosław <mirq-linux@xxxxxxxxxxxx> Applied, thanks. -- Jesse Barnes, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
