Merge thorpej-cfargs2.

branches: 1.35.8;
Merge thorpej-cfargs branch:

Simplify and make extensible the config_search() / config_found() /
config_attach() interfaces: rather than having different variants for
which arguments you want pass along, just have a single call that
takes a variadic list of tag-value arguments.

Adjust all call sites:
- Simplify wherever possible; don't pass along arguments that aren't
actually needed.
- Don't be explicit about what interface attribute is attaching if
the device only has one. (More simplification.)
- Add a config_probe() function to be used in indirect configuiration
situations, making is visibly easier to see when indirect config is
in play, and allowing for future change in semantics. (As of now,
this is just a wrapper around config_match(), but that is an
implementation detail.)

Remove unnecessary or redundant interface attributes where they're not
needed.

There are currently 5 "cfargs" defined:
- CFARG_SUBMATCH (submatch function for direct config)
- CFARG_SEARCH (search function for indirect config)
- CFARG_IATTR (interface attribte)
- CFARG_LOCATORS (locators array)
- CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles)

...and a sentinel value CFARG_EOL.

Add some extra sanity checking to ensure that interface attributes
aren't ambiguous.

Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark
ports to associate those device handles with device_t instance. This
will trickle trough to more places over time (need back-end for pre-OFW
Sun OBP; any others?).

branches: 1.34.44;
Tab/whitespace cleanup.

branches: 1.33.2;
struct device * -> device_t, struct cfdata * -> cfdata_t
use device_xname() (from chs@)

branches: 1.32.30; 1.32.40;
Split softc/device_t, with misc cosmetic changes.

branches: 1.31.2; 1.31.4;
Remove clause 3 and 4 from TNF licenses

branches: 1.30.14; 1.30.16; 1.30.18;
- use __arraycount()
- some KNF
- use __func__ to print function names

branches: 1.29.6; 1.29.22; 1.29.24; 1.29.30;
Prepare bus_dma(9) structures for sun3x obio devices.

- change find_prom_map() to take paddr_t and return vaddr_t rather than
bus_space_handle_t since bus space handle without bus space tag looks weird
- replace old sun3 obio_find_mapping() with new common find_prom_map()
- add bus_space_vaddr(), from hp300

First attempt at bus_space(9) support for sun3 with common sun68k/bus.c:
- make sun3 port use common sun68k files as much as possible
- add temporary options _SUN2_ in std.sun2 until sun3 can share all
sun68k files (autoconf.c and isr.c are not yet)
- move sun68kvme declaration temporary as well from files.sun68k to files.sun2
- rename and move sun68k_find_prom_map() function to MD sources since it
can't be shared with sun3
- add bus tag members to struct confargs and initilize them where appropriate

XXX1: MD bus_dma(9) backends are not implemented (yet).
XXX2: more code (obio etc.) should be shared among sun3, sun3x and sun2.

branches: 1.26.20; 1.26.22;
merge ktrace-lwp.

s/locdesc_t/int/g

branches: 1.24.2;
convert remaining autoconf bus "submatch" functions to use the new
signature (passing locators), and remove some which obviously don't
serve any purpose
(untested, sorry)

de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.22.8;
__KERNEL_RCSID()

branches: 1.21.2;
Use PAGE_SIZE rather than NBPG.

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

remove trailing \n in panic(). approved perry.

Introduce a new routine, config_match(), which invokes the
cfattach->ca_match function in behalf of the caller. Use it
rather than invoking cfattach->ca_match directly.

Rather than referencing the cfdriver directly in the cfdata entries,
instead use a string naming the driver. The cfdriver is then looked
up in a list which is built at run-time.

branches: 1.14.6;
obio_find_mapping() takes PA. (missed in the previous commit)

- vm_offset_t -> [pv]addr_t
- vm_size_t -> vsize_t
- remove register prefixes

branches: 1.12.4;
Fix typo in comment.

branches: 1.11.2; 1.11.8;
Add the address of the DMA gate array (used by the esp driver).

Improve some diagnostics.

Merge arch/sun3x into arch/sun3

branches: 1.8.4;
Update for config changes.

Move the call to cninit() up a level (easier to find).

branches: 1.6.4;
Add a comment about obio_mapin().

Change the OBIO address probe order a little, to allow determination of
which kind of idprom and clock we have (3/80 vs 3/470 differences).
Fix a bug where obio_submatch() failed to copy some locators.
Rename obio_alloc to obio_mapin. Add lots of comments.

Add OBIO_EMULEX_SCSI, and some comments about attach order.

branches: 1.3.4;
Kill sunmon.h

Use sunmon_abort() instead of mon_panic().

branches: 1.1.1;
Initial revision