Make VAXstation 4000 TURBOchannel adaptor work.
PIO and IRQ tested on VS4000/60 and /96 with TC-USB (slhci) and PMAD-AA (le).
DMA is untested.
vax needs space to be mapped out, so memory space is pre-mapped for TC option
drivers not bus_space'ified yet, also providing custom bus_space methods for
this kludge.

Clean-up (remove redundant declarations, concentrate checks).

switch to common MIPS bus_space and bus_dma
tested by flxd@

branches: 1.30.2;
#include either <sys/cpu.h> or <mips/cpuregs.h> as needed

branches: 1.29.14;
struct device * -> device_t, use device_xname() (from chs@)

branches: 1.28.2; 1.28.12;
Cleanu <machine/*> includes

Split device_t/softc. pmax is tested on GXemul.
Compile test only for alpha and vax.

XXX: alpha/tc/tcasic.c calls tcattach() via config_found(9), but
XXX: pmax/tc/tcbus.c and vax/vsa/tc_vsbus.c calls tcattach() directly.
XXX: It looks horrible...

branches: 1.26.2;
Merge forward from matt-nb5-mips64.
New interrupt code.
mips64 support for DS5000/260.

branches: 1.25.4; 1.25.6; 1.25.8;
ANSIfy functions with function-pointer arguments

ANSIfy another 1261 function definitions.
The only ones left in sys are beyond by sed script!
(or in sys/dist or sys/external)
Mostly they have function pointer parameters.

Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)

Remove all the __P() from sys (excluding sys/dist)
Diff checked with grep and MK1 eyeball.
i386 and amd64 GENERIC and sys still build.

branches: 1.21.6; 1.21.12; 1.21.16;
- assign 2 clause TNF license to the files cited as my ownership.
- abandon and remove my copyright notice from the three files were
copied in order to adapt HW I don't have; pvr.c, pm.c and stic.c

branches: 1.20.58; 1.20.60; 1.20.62; 1.20.64;
tcfb_cnattach(): pass the slot address through TC_PHYS_TO_UNCACHED() in
case the PROM hands us a physical or KSEG0 address.

Remove RASTERCONSOLE support from the pmax port.

branches: 1.18.4; 1.18.8;
merge ktrace-lwp.

branches: 1.17.16;
Add drivers for the desktop bus, DC-7085 and pm display. Make it possible to
select between rcons or wscons at compile time. Ok'ed by simonb.

branches: 1.16.6;
Use CFATTACH_DECL().

Declare all cfattach structures const.

branches: 1.14.4; 1.14.10;
Adjust to use <dev/sun/fbio.h>

branches: 1.13.2; 1.13.4;
white space nits.

branches: 1.12.4;
Add a missing parenthesis and correct the function return value declaration.

Implement the more flexiable `evcnt' interface as discussed (briefly) on
tech-kern and now documented in evcnt(9).

branches: 1.10.2;
Cleanup warning comment which is now irrelevant. Reorder codes.

- Have SYS_DEV_xxx device cookie symbols to select and install proper
interrupt handlers into intrtab[] array, rather than the idea of devices
in 'psuedo' TURBOchannel slots.
- Nuke symbols for psuedo TC slots.
- Abandon never/unlikely used intr_disestablish()s.

- Massive change of console initialization. Have each model its own
consinit().
- Fix fbconnect() and relatives; 'struct fbinfo' is initialized only once,
making sure no extraneous console resolution message is emitted.

Redo interrupt establishment, based in part on work on the
[nisimura-pmax-wscons] branch and suggestions from Toru Nisimura:
- Remove bogus tc_slot_info[] name for interrupt handling array
and replace with simplified struct intrhand intrtab[] array.
- Add intr_establish() and intr_disestablish() function pointers
to struct platform and initialise this in each model-specific
initialisation, and remove global tc_enable_interrupt function
pointer.
- Remove model-specific function declarations from ibus/ibusvar.h.
This is functionally identical to the current scheme, and doesn't
yet try to commonise interrupt establishment by bus type as the
[nisimura-pmax-wscons] branch does.

Also, move cpuspeed variable from autoconf.c to machdep.c

RCS ID police.

The clean-up continues:
- Make local-only function and variables static.
- Move function prototypes and extern variable declarations to
header files.
- Delete unused variables.
There's still a handful of extern declaraions that should be fixed up.

Function prototype cleanup.

branches: 1.3.2; 1.3.4;
Consistent panic messages when erroneous kernel configurations are found.

Fix a typo in PX TC device identification case analysis.

Very large scale change to sweep obstracles to remove 3MAX IOASIC disguise.
- Rework ibus device configuration and interrupt handler assignment.
- Remove TC device exposure in 'mainbus.c'
- Squash 'ibus_{3100,5100}.c' into a file; it can not cope with 3max.
- 'struct confargs' -> 'struct mainbus_attach_args'
Now about to remove tc_slot_info[] and tc_enable_interrupt inherited from
4.4BSD.

Clean-up (remove redundant declarations, concentrate checks).

switch to common MIPS bus_space and bus_dma
tested by flxd@

#include either <sys/cpu.h> or <mips/cpuregs.h> as needed

branches: 1.29.14;
struct device * -> device_t, use device_xname() (from chs@)

branches: 1.28.2; 1.28.12;
Cleanu <machine/*> includes

Split device_t/softc. pmax is tested on GXemul.
Compile test only for alpha and vax.

XXX: alpha/tc/tcasic.c calls tcattach() via config_found(9), but
XXX: pmax/tc/tcbus.c and vax/vsa/tc_vsbus.c calls tcattach() directly.
XXX: It looks horrible...

branches: 1.26.2;
Merge forward from matt-nb5-mips64.
New interrupt code.
mips64 support for DS5000/260.

branches: 1.25.4; 1.25.6; 1.25.8;
ANSIfy functions with function-pointer arguments

ANSIfy another 1261 function definitions.
The only ones left in sys are beyond by sed script!
(or in sys/dist or sys/external)
Mostly they have function pointer parameters.

Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)

Remove all the __P() from sys (excluding sys/dist)
Diff checked with grep and MK1 eyeball.
i386 and amd64 GENERIC and sys still build.

branches: 1.21.6; 1.21.12; 1.21.16;
- assign 2 clause TNF license to the files cited as my ownership.
- abandon and remove my copyright notice from the three files were
copied in order to adapt HW I don't have; pvr.c, pm.c and stic.c

branches: 1.20.58; 1.20.60; 1.20.62; 1.20.64;
tcfb_cnattach(): pass the slot address through TC_PHYS_TO_UNCACHED() in
case the PROM hands us a physical or KSEG0 address.

Remove RASTERCONSOLE support from the pmax port.

branches: 1.18.4; 1.18.8;
merge ktrace-lwp.

branches: 1.17.16;
Add drivers for the desktop bus, DC-7085 and pm display. Make it possible to
select between rcons or wscons at compile time. Ok'ed by simonb.

branches: 1.16.6;
Use CFATTACH_DECL().

Declare all cfattach structures const.

branches: 1.14.4; 1.14.10;
Adjust to use <dev/sun/fbio.h>

branches: 1.13.2; 1.13.4;
white space nits.

branches: 1.12.4;
Add a missing parenthesis and correct the function return value declaration.

Implement the more flexiable `evcnt' interface as discussed (briefly) on
tech-kern and now documented in evcnt(9).

branches: 1.10.2;
Cleanup warning comment which is now irrelevant. Reorder codes.

- Have SYS_DEV_xxx device cookie symbols to select and install proper
interrupt handlers into intrtab[] array, rather than the idea of devices
in 'psuedo' TURBOchannel slots.
- Nuke symbols for psuedo TC slots.
- Abandon never/unlikely used intr_disestablish()s.

- Massive change of console initialization. Have each model its own
consinit().
- Fix fbconnect() and relatives; 'struct fbinfo' is initialized only once,
making sure no extraneous console resolution message is emitted.

Redo interrupt establishment, based in part on work on the
[nisimura-pmax-wscons] branch and suggestions from Toru Nisimura:
- Remove bogus tc_slot_info[] name for interrupt handling array
and replace with simplified struct intrhand intrtab[] array.
- Add intr_establish() and intr_disestablish() function pointers
to struct platform and initialise this in each model-specific
initialisation, and remove global tc_enable_interrupt function
pointer.
- Remove model-specific function declarations from ibus/ibusvar.h.
This is functionally identical to the current scheme, and doesn't
yet try to commonise interrupt establishment by bus type as the
[nisimura-pmax-wscons] branch does.

Also, move cpuspeed variable from autoconf.c to machdep.c

RCS ID police.

The clean-up continues:
- Make local-only function and variables static.
- Move function prototypes and extern variable declarations to
header files.
- Delete unused variables.
There's still a handful of extern declaraions that should be fixed up.

Function prototype cleanup.

branches: 1.3.2; 1.3.4;
Consistent panic messages when erroneous kernel configurations are found.

Fix a typo in PX TC device identification case analysis.

Very large scale change to sweep obstracles to remove 3MAX IOASIC disguise.
- Rework ibus device configuration and interrupt handler assignment.
- Remove TC device exposure in 'mainbus.c'
- Squash 'ibus_{3100,5100}.c' into a file; it can not cope with 3max.
- 'struct confargs' -> 'struct mainbus_attach_args'
Now about to remove tc_slot_info[] and tc_enable_interrupt inherited from
4.4BSD.