On Tue, 22 Feb 2005 14:12:48 +1100, Benjamin Herrenschmidt <[EMAIL PROTECTED]> wrote: > It's up to each driver to detect wether it's card need to be POSTed or > not. Anything else would mean infinite breakage.
Your approach is that it is a per driver problem. I was taking a different tack and looking at it as a BIOS deficiency that should be compensated for. There is already code in the kernel for identifying the boot video device. I was working on the assumption that all PCI based, VGA class hardware that is not the boot device needs to be posted. And that the posting should occur before the drivers are loaded. In order words the BIOS should have provided initialized hardware but since it didn't we can apply a fixup in the PCI driver. I also suspect there may be SCSI disk controller cards that need the same procedure. I have no strong opinions on how to fix the post problem, I just want to make sure the problem is fully discussed by the relevant people and a consensus solution is achieved. I'm not sure that all of the core kernel developers that might be impacted by this have considered all of the options. I would like to try and get a consensus design and avoid reimplementing everything ten times. -- Jon Smirl [EMAIL PROTECTED] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
