Relax the way irqs are assigned. This diff does:
- dynamic allocation of interrupts for dino(4) and gsc(4)
- only mention irq locators for devices which use interrupts.
- for gsc(4), this actually postpones interrupt allocation until gsc(4)
attaches, so asp(4)/lasi(4)/wax(4) won't route the interrupt yet, but
the gsc(4) child will take care of this.
- remove the irq locator for the drivers which do not need a fixed
assignment. siop and moongoose could benefit from this but don't work
at the moment so this is left as an exercize to future kernel hackers.
A side effect from this is that we do not need multiple sti(4)
attachment lines, so PCI sti(4) devices will now attach as sti0 rather
than sti2.

With this diff, multiple dino(4) devices attached to the same parent
will use different interrupt sources, and more than two dino(4) devices
can attach.

Tested on 715/75 (old-gen using asp), 715/100/XC (new-gen using lasi),
B132L+, B180L, C240, B2000, C3650.

From miod@

scan cpu bus manually for some machines do not support that in prom

map both register spaces

update copyright; miod@ is fine w/ files where he holds it too

same leds on b132 and b160; from Hans-Joerg.Hoexer@yerbouti.franken.de

j2x0 do not like our fiddling over th led port; testing by pb@

b180 wink-wink

support systems where power service is available from pdc and implement a cold hook as well thus do not powerleash lasi should we have cold_hook already set

a180c blinks too, 715/80 supposedly too

deduce the leds address from the model number and thus make some more use of that lichtenblinkenschmutz on some more machinens

just wate that debug altogether

Make dmesg prettier if attachment fails and no option DEBUG

newer machines use phantom bus to attach lasi and other bus adapters.
oledr machines did not have a real device for the phantom bus port.
change the device scanning technique to both include a full device path
in the attach_args and do proper shifting in the pdc_scanbus() and
add a device for the newer machines as well as use a newer device
mapping (path to hpa) available on newer firmware versions, where
old (hversion-dependant) is not available.
tested on 712,715/33,c110, miod@ ok, weissmandude -- testing

real interrupts/spl framework.
tested on 712/* 715/100, 715/33 which main cpu/bus types.
miod@ ok

do not forget to set the hpamask

First round of __P removal in sys

support 712's programmable power switch, no interrupt yet

get rid of the borrowed habits in intr handling

defer non-0 units to keep iface order right

branches: 1.4.4;
disable debugging by default

branches: 1.3.4;
map the io space

try to avoid using bus_* stuff for MD code, handle interrupts, gscbus changes

some GSC bus adapters; WAX is not ready yet

scan cpu bus manually for some machines do not support that in prom

map both register spaces

update copyright; miod@ is fine w/ files where he holds it too

same leds on b132 and b160; from Hans-Joerg.Hoexer@yerbouti.franken.de

j2x0 do not like our fiddling over th led port; testing by pb@

b180 wink-wink

support systems where power service is available from pdc and implement a cold hook as well thus do not powerleash lasi should we have cold_hook already set

a180c blinks too, 715/80 supposedly too

deduce the leds address from the model number and thus make some more use of that lichtenblinkenschmutz on some more machinens

just wate that debug altogether

Make dmesg prettier if attachment fails and no option DEBUG

newer machines use phantom bus to attach lasi and other bus adapters.
oledr machines did not have a real device for the phantom bus port.
change the device scanning technique to both include a full device path
in the attach_args and do proper shifting in the pdc_scanbus() and
add a device for the newer machines as well as use a newer device
mapping (path to hpa) available on newer firmware versions, where
old (hversion-dependant) is not available.
tested on 712,715/33,c110, miod@ ok, weissmandude -- testing

real interrupts/spl framework.
tested on 712/* 715/100, 715/33 which main cpu/bus types.
miod@ ok

do not forget to set the hpamask

First round of __P removal in sys

support 712's programmable power switch, no interrupt yet

get rid of the borrowed habits in intr handling

defer non-0 units to keep iface order right

branches: 1.4.4;
disable debugging by default

branches: 1.3.4;
map the io space

try to avoid using bus_* stuff for MD code, handle interrupts, gscbus changes

some GSC bus adapters; WAX is not ready yet