On Tue, 08 Feb 2011 10:55:01 +0100 Jiri Slaby <jirislaby@xxxxxxxxx> wrote: > On 01/14/2011 05:10 PM, Bjorn Helgaas wrote: > > On Friday, January 14, 2011 03:31:16 am Jiri Slaby wrote: > >> On 01/14/2011 01:15 AM, Linus Torvalds wrote: > >>> On Thu, Jan 13, 2011 at 3:19 PM, Bjorn Helgaas <bjorn.helgaas@xxxxxx> wrote: > >>>> > >>>> I think we're back to the question of why we have the ICH4 quirk in > >>>> the first place, and I don't know the answer to that. > >>> > >>> Iirc, there were several laptops that didn't have the ACPI region > >>> mentioned in any of the regular places, and we'd allocate the PCMCIA > >>> IO region on top of them. The machine would boot, but if anybody ever > >>> inserted a PCCard into the machine, the first access to the IO region > >>> would generally just halt it (because it was trying to read the > >>> PCCard, but the APCI region decodes first, and then the read from that > >>> usually put the CPU in a sleep state that it would never wake up from > >>> for obvious reasons). > >>> > >>> So we do want the ICH4 quirk. > >> > >> Yes, this is an "official" way how ICH4 (and later) advertises the region. > > > > The quirk is a bug workaround, *not* the "official, planned" way to > > deal with these regions. The official way is to use ACPI, because > > that's a generic way that doesn't require changes for new versions > > of ICH. > > Ok, I understand that. For non-ACPI setups this is probably the only > place to look at. > > Anyway, has anybody had a chance to look at the patches? Any comments, > nacks/acks? > > https://lkml.org/lkml/2011/1/14/115 > https://lkml.org/lkml/2011/1/14/113 > https://lkml.org/lkml/2011/1/14/114 I don't have a problem making the quirk quirkier, but it would be nice to get rid of the need for it entirely (though we can leave that to Bjorn :). Can you re-submit these three against my linux-next branch? 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
