ACPI on Tyan K8WE (mostly works!)

[Damian Gerow]

I just got my hands on a Tyan K8WE (S2895), and was pleasantly surprised to
see that after very little effort, the board booted with almost full ACPI
support.  I've not actually had any ACPI troubles yet, but a non-verbose
boot does complain a bit about ACPI:

    real memory  = 1072824320 (1023 MB)
    avail memory = 1023733760 (976 MB)
    ioapic0 <Version 1.1> irqs 0-23 on motherboard
    ioapic1 <Version 1.1> irqs 24-27 on motherboard
    ioapic2 <Version 1.1> irqs 28-31 on motherboard
    acpi0: <PTLTD   RSDT> on motherboard
    ACPI-0438: *** Error: Looking up [\_SB_.PCI1.LNK3] in namespace, AE_NOT_FOUND
    SearchNode 0xffffff0000a3d1c0 StartNode 0xffffff0000a3d1c0 ReturnNode 0
    ACPI-0438: *** Error: Looking up [\_SB_.PCI1.LNK4] in namespace, AE_NOT_FOUND
    SearchNode 0xffffff0000a3bcc0 StartNode 0xffffff0000a3bcc0 ReturnNode 0
    ACPI-0438: *** Error: Looking up [\_SB_.PCI1.LNK1] in namespace, AE_NOT_FOUND
    SearchNode 0xffffff0000a3b9c0 StartNode 0xffffff0000a3b9c0 ReturnNode 0
    ACPI-0438: *** Error: Looking up [\_SB_.PCI1.LNK2] in namespace, AE_NOT_FOUND
    SearchNode 0xffffff0000a3b6c0 StartNode 0xffffff0000a3b6c0 ReturnNode 0
    acpi0: Power Button (fixed)

There's no functionality impairment, which I was pleasantly surprised to
see.  Thanks!

In case anyone's interested in prodding any further a mostly-full dmesg and
an ASL dump can be found here:

    <http://www.afflictions.org/~dgerow/ACPI/S2895/dmesg>
    <http://www.afflictions.org/~dgerow/ACPI/S2895/asl>

Note that the dmesg isn't full: my full verbose dmesg output is greater than
kern.consmsgbuf_size, and for some reason, isn't recorded in dmesg.today.
I'll look into expanding it on bootup tomorrow, but for the time being,
that's the vast majority of a dmesg.

  - Damian