Selectively disabling acpi sub-systems

[Nate Lawson]

Fabian Keil wrote:
> John Baldwin <jhb at freebsd.org> wrote:
> 
>> On Tuesday 11 July 2006 02:59, M. Warner Losh wrote:
>>> In message: <20060710143810.61705f74 at localhost>
>>>             Fabian Keil <freebsd-listen at fabiankeil.de> writes:
>>> : Could someone please tell me how to stop acpi0 from
>>> : grabbing sio0, without affecting fxp0?
>>>
>>> Hack sio not to have a acpi attachment.  Or wait for some work that
>>> we're doing in current to be MFC'd :-)
>> That still wouldn't help in his case. :)  Probably fxp0's interrupt routing is 
>> busted in the non-ACPI case and to get ACPI to route PCI interrupts you need 
>> to have ACPI probe the device tree which would cause sio0 to be enumerated 
>> via ACPI.
> 
> I only found one ACPI reference in sio and commenting it out
> did indeed change nothing. I don't have any ideas left
> for RELENG_6 and will jump to current tomorrow to try my luck
> there.

ACPI doesn't change much for sio devices.  It's basically ISA with the 
resource being provided by the _CRS value in the AML (instead of by 
/boot/*.hints).

-- 
Nate