On Wed, Mar 31, 2010 at 3:56 PM, Ira W. Snyder <iws@xxxxxxxxxxxxxxxx> wrote:
> On Wed, Mar 31, 2010 at 03:32:09PM -0600, Bjorn Helgaas wrote:
>> On Wednesday 31 March 2010 12:45:14 pm Ira W. Snyder wrote:
>> > On Wed, Mar 31, 2010 at 12:13:46PM -0600, Bjorn Helgaas wrote:
>> > > On Wednesday 31 March 2010 10:38:42 am Ira W. Snyder wrote:
>>
>> > > The CNB20LE might also be used in systems that *do* have ACPI, and in
>> > > that case, I think we should use ACPI rather than read the info out of
>> > > the hardware. I expect that's what Windows will do, and Linux should
>> > > do the same as Windows when it's practical. Also, that's what the BIOS
>> > > writers expect the OS to do, and _CRS is the logical place for them to
>> > > put platform-specific workarounds.
>> >
>> > Is there any way to detect if we do have ACPI and shouldn't run this
>> > quirk? How?
>>
>> Probably check "acpi_disabled".
>>
>
> Ok, I'll give this a shot.
do not need that. bus_numa.c already did that check for you.
void x86_pci_root_bus_res_quirks(struct pci_bus *b)
{
int i;
int j;
struct pci_root_info *info;
/* don't go for it if _CRS is used already */
if (b->resource[0] != &ioport_resource ||
b->resource[1] != &iomem_resource)
return;
YH
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