Merge thorpej-cfargs2.

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 a

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?).

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Merge from matt-nb5-mips64.
Add pci support.
new interrupt code.
Adapt to new world order for MIPS

Use aprint_* and misc cleanup.

Update to CFATTACH_DECL_NEW.

Remove many magic numbers for addresses and interrupt numbers, and use
constants defined in SiByte/Broadcom standard header files. Switch from
using offsets for locators to actual addresses.

Tested

Remove many magic numbers for addresses and interrupt numbers, and use
constants defined in SiByte/Broadcom standard header files. Switch from
using offsets for locators to actual addresses.

Tested on a swarm (my rhone is dead, but should be OK there too).

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fix typo. should compile again.

use __array_count

merge ktrace-lwp.

kill some more simple submatch() functions, use config_stdsubmatch()

replace the "locdesc_t" structure carrying the number of locators
explicitely by a plain integer array
the length in now known to all relevant parties, so this avoids
duplication of information, and

replace the "locdesc_t" structure carrying the number of locators
explicitely by a plain integer array
the length in now known to all relevant parties, so this avoids
duplication of information, and we can allocate that thing in
drivers without hacks

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autoconf cleanup: turn xxxsubmatch() functions into the locator
passing variants

__KERNEL_RCSID()

Update to consistently use Broadcom GPL-compatible license on all SiByte code.

Use aprint_normal() for cfprint routines.

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

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.

Add support for the on-chip peripherals on the Broadcom SiByte SB1250 CPU
and support routines for the Broadcom CFE (Common Firmware Environment).

This code is provided by the Broadband Processor Bu

Add support for the on-chip peripherals on the Broadcom SiByte SB1250 CPU
and support routines for the Broadcom CFE (Common Firmware Environment).

This code is provided by the Broadband Processor Business Unit at
Broadcom Corp with minor updates by me.

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