SMP support for ofppc in-tree

After weeks of fiddling, and help from Matt Thomas, I now have SMP working on
ofppc. Tested on a 7044-270 with 4 procs.  Code has been committed.

dmesg follows:

>> NetBSD/ofppc OpenFirmware Boot, Revision 1.10
>> ([email protected], Wed Feb 20 19:56:21 MST 2008)
Boot: tnetbsd
4090500+364232 [228640+222192]=0x4ade78
 start=0x100000
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
    2006, 2007, 2008
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 4.99.58 (GENERIC.MP) #24: Mon Apr  7 13:11:51 MST 2008
        [email protected]:/obj/ofppc/sys/arch/ofppc/compile/GENERIC.MP
Model: IBM,7044-270
total memory = 2048 MB
avail memory = 1965 MB
bootpath: /pci@fef00000/scsi@c/sd@8,0/tnetbsd
mainbus0 (root)
rtas0 at mainbus0: version 1, entry @pa 0x7b46f8
cpu0 at mainbus0: POWER3II (Revision 1.4), ID 0 (primary)
cpu0: HID0 f001d1a0<EMCP,DBP,EBA,EBD,NHR,ICE,DCE,DLOCK,IFEM,SGE,BTIC>,
powersave: -1
cpu0: 375.00 MHz
cpu0: L1 I-cache 32 KB 128B/line, D-cache 64 KB 128B/line
cpu0: L2 cache 8 MB 128B/line
cpu1 at mainbus0: POWER3II (Revision 1.4), ID 2
cpu1: HID0 f001d1a0<EMCP,DBP,EBA,EBD,NHR,ICE,DCE,DLOCK,IFEM,SGE,BTIC>,
powersave: -1
cpu1: 375.00 MHz
cpu1: L1 I-cache 32 KB 128B/line, D-cache 64 KB 128B/line
cpu1: L2 cache 8 MB 128B/line
cpu2 at mainbus0: POWER3II (Revision 1.4), ID 4
cpu2: HID0 f001d1a0<EMCP,DBP,EBA,EBD,NHR,ICE,DCE,DLOCK,IFEM,SGE,BTIC>,
powersave: -1
cpu3 at mainbus0: POWER3II (Revision 1.4), ID 6
cpu3: HID0 f001d1a0<EMCP,DBP,EBA,EBD,NHR,ICE,DCE,DLOCK,IFEM,SGE,BTIC>,
powersave: -1
ofwpci0 at mainbus0
OpenPIC Version 1.2: Supports 8 CPUs and 32 interrupt sources.
pci0 at ofwpci0 bus 0: OFW method configuration space access
pchb0 at pci0 dev 0 function 0
pchb0: IBM Python PCI-PCI Bridge (rev. 0x0a)
pcib0 at pci0 dev 11 function 0: Symphony Labs 83C553 PCI-ISA Bridge (rev. 0x10)
pciide0 at pci0 dev 11 function 1
pciide0: Symphony Labs 82C105 (rev. 0x05)
pciide0: couldn't map native-PCI interrupt
pciide0: couldn't map native-PCI interrupt
esiop0 at pci0 dev 12 function 0: Symbios Logic 53c875 (ultra-wide scsi)
esiop0: using on-board RAM
esiop0: interrupting at irq 17
scsibus0 at esiop0: 16 targets, 8 luns per target
pcn0 at pci0 dev 16 function 0: AMD PCnet-PCI Ethernet
pcn0: Am79c971 PCnet-FAST rev 6, Ethernet address 00:04:ac:e4:a1:a5
pcn0: interrupting at irq 18
nsphy0 at pcn0 phy 1: DP83840 10/100 media interface, rev. 1
nsphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
ukphy0 at pcn0 phy 31: Generic IEEE 802.3u media interface
ukphy0: Am79C972 internal 10BASE-T interface (OUI 0x000058, model 0x0001), rev.
1
ukphy0: 10baseT, 10baseT-FDX, auto
esiop1 at pci0 dev 17 function 0: Symbios Logic 53c895 (ultra2-wide scsi)
esiop1: using on-board RAM
esiop1: interrupting at irq 20
scsibus1 at esiop1: 16 targets, 8 luns per target
isa0 at pcib0
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
com0: console
com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
pckbc0 at isa0 port 0x60-0x64
attimer0 at isa0 port 0x40-0x43: AT Timer
pcppi0 at isa0 port 0x61
attimer0: attached to pcppi0
ofwpci1 at mainbus0
pci_configure_bus() failed
pci1 at ofwpci1 bus 64
pchb1 at pci1 dev 0 function 0
pchb1: IBM Python PCI-PCI Bridge (rev. 0x0a)
genfb0 at pci1 dev 12 function 0: IBM GXT-6000P Graphics Adapter
genfb0: unable to map the framebuffer
biomask 800001c netmask 800001c ttymask 800001c
cpu1 started
cpu2 started
cpu3 started
scsibus0: waiting 2 seconds for devices to settle...
scsibus1: waiting 2 seconds for devices to settle...
cd0 at scsibus0 target 1 lun 0: <IBM, CDRM00203\000\000\000\000\000!K, 1_06>
cdrom removable
cd0: sync (50.00ns offset 15), 16-bit (40.000MB/s) transfers
sd0 at scsibus0 target 8 lun 0: <IBM, ST318305LC, C509> disk fixed
sd0: 17357 MB, 29550 cyl, 2 head, 601 sec, 512 bytes/sect x 35548320 sectors
sd0: sync (50.00ns offset 16), 16-bit (40.000MB/s) transfers, tagged queueing
Kernelized RAIDframe activated
boot device: sd0
root on sd0a dumps on sd0b
root file system type: ffs
Mon Apr  7 13:17:42 MST 2008

---
Tim Rightnour <[email protected]>
NetBSD: Free multi-architecture OS http://www.netbsd.org/
Genecys: Open Source 3D MMORPG: http://www.genecys.org/