On Fri, Sep 12, 2008 at 02:00:43PM +0100, Ben Dooks wrote: > On Fri, Sep 12, 2008 at 06:33:40AM -0600, Matthew Wilcox wrote: > > On Fri, Sep 12, 2008 at 12:22:52PM +0100, Ben Dooks wrote: > > > The M5229 implementation embedded into the ALI M1543 uses the > > > M1543's ISA PIC to provide the interrupts and thus does not have > > > an valid PCI IRQ set. This quirk detects the abscence of IRQ and > > > sets the M5229 back into compatibility mode to use IRQs 14 and 15 > > > so that libata works correctly. > > > > Why does this need to be a quirk rather than something in the libata ALi > > driver? > > The short answer is that "Alan Cox says not in libata", the longer > one can be found: > > http://www.archivum.info/linux-ide@xxxxxxxxxxxxxxx/2008-07/msg00410.html Thanks for the reference. I've now read that thread. I'm not entirely convinced Alan is right; I think it's preferable to confine this quirking to the driver and fix up the BARs in the driver as well. -- Matthew Wilcox Intel Open Source Technology Centre "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." -- 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
