se7520af2 intel motherboard acpi problem

[Nate Lawson]

John Baldwin wrote:
> On Friday 07 April 2006 05:02, Anton Menshutin wrote:
>> On Thu, 6 Apr 2006, John Baldwin wrote:
>>
>>> Can you give more detail about how the pci-e busses do not work?
>>>
>> In dmesg output you can see kernel says nothing about areca raid 
>> controller, which is on pci-e bus. And
>> pcib5: <ACPI PCI-PCI bridge> at device 0.0 on pci6
>> pcib5:   secondary bus     8
>> pcib5:   subordinate bus   8
>> pcib5:   I/O decode        0xf000-0xfff
>> pcib5:   memory decode     0xfe900000-0xfe9fffff
>> pcib5:   prefetched decode 0xfbc00000-0xfbffffff
>> device_attach: pcib5 attach returned 6
>> what i think means there is a problem during init of pci-e bus.
> 
> Ah, ok.  It would be most helpful if you could add a bunch of printf's
> to the attach routine in sys/dev/acpica/acpi_pcib_pci.c to see where
> the error comes from.
> 
> Oh, I think I've seen this before.  This is due to incompetent BIOS
> writers.  Edit sys/dev/acpica/acpi_pcib.c and in the acpi_pcib_attach()
> function comment out the acpi_DeviceIsPresent() check.  The BIOS is
> claiming that the specific PCI bus doesn't exist.

If that is the case, we should change acpi_pcib to have a separate check 
for just the "functional" bit or whatever the AML does report.  I 
thought we did that before, but it's been a year or so.

-- 
Nate