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History log of /src/sys/arch/mips/sibyte/dev/sbgbus.c
RevisionDateAuthorComments
 1.15  07-Aug-2021  thorpej Merge thorpej-cfargs2.
 1.14  24-Apr-2021  thorpej branches: 1.14.8;
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?).
 1.13  10-Jul-2011  matt branches: 1.13.68;
cleanup <machine/*.h> includes
 1.12  01-Feb-2011  matt Update to CFATTACH_DECL_NEW.
 1.11  14-Dec-2009  matt branches: 1.11.4; 1.11.6; 1.11.8;
Merge from matt-nb5-mips64
Merge mips-specific arch files.
 1.10  11-Dec-2005  christos branches: 1.10.78; 1.10.96;
merge ktrace-lwp.
 1.9  26-Aug-2005  drochner s/locdesc_t/int/g
 1.8  13-Sep-2004  drochner branches: 1.8.12;
autoconf cleanup: turn xxxsubmatch() functions into the locator
passing variants
 1.7  15-Jul-2003  lukem __KERNEL_RCSID()
 1.6  07-Feb-2003  cgd branches: 1.6.2;
Update to consistently use Broadcom GPL-compatible license on all SiByte code.
 1.5  01-Jan-2003  thorpej Use aprint_normal() for cfprint routines.
 1.4  02-Oct-2002  thorpej Add trailing ; to CFATTACH_DECL.
 1.3  01-Oct-2002  thorpej Use CFATTACH_DECL().
 1.2  27-Sep-2002  thorpej 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.
 1.1  05-Mar-2002  simonb branches: 1.1.10; 1.1.12;
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.
 1.1.12.3  03-Jan-2003  thorpej Sync with HEAD.
 1.1.12.2  18-Oct-2002  nathanw Catch up to -current.
 1.1.12.1  05-Mar-2002  nathanw file sbgbus.c was added on branch nathanw_sa on 2002-10-18 02:38:48 +0000
 1.1.10.3  10-Oct-2002  jdolecek sync kqueue with -current; this includes merge of gehenna-devsw branch,
merge of i386 MP branch, and part of autoconf rototil work
 1.1.10.2  23-Jun-2002  jdolecek catch up with -current on kqueue branch
 1.1.10.1  05-Mar-2002  jdolecek file sbgbus.c was added on branch kqueue on 2002-06-23 17:38:06 +0000
 1.6.2.4  10-Nov-2005  skrll Sync with HEAD. Here we go again...
 1.6.2.3  21-Sep-2004  skrll Fix the sync with head I botched.
 1.6.2.2  18-Sep-2004  skrll Sync with HEAD.
 1.6.2.1  03-Aug-2004  skrll Sync with HEAD
 1.8.12.1  21-Jun-2006  yamt sync with head.
 1.10.96.2  09-Jun-2010  matt Update to the device NWO:
Use CFATTACH_DECL_NEW
struct device * -> device_t
struct cfdata * -> cfdata_t
printf -> aprint_normal_*
Use device_* accessors
 1.10.96.1  23-Nov-2009  matt mips3_ld/mips3_sd need to be passed a volatile uint64_t *
 1.10.78.1  11-Mar-2010  yamt sync with head
 1.11.8.1  08-Feb-2011  bouyer Sync with HEAD
 1.11.6.1  06-Jun-2011  jruoho Sync with HEAD.
 1.11.4.1  05-Mar-2011  rmind sync with head
 1.13.68.6  05-Apr-2021  thorpej Treat config_probe() as if it were a boolean function; don't compare
return value > 0... except for the odd balls, which are now really easy
to spot.
 1.13.68.5  05-Apr-2021  thorpej config_match() -> config_probe() for the straight-forward indirect config
cases. There are still a few odd balls using config_match() which should
be sorted out later.
 1.13.68.4  04-Apr-2021  thorpej CFARG_SUBMATCH -> CFARG_SEARCH for the indirect configuration uses.
 1.13.68.3  03-Apr-2021  thorpej Give config_attach() the tagged variadic argument treatment and
mechanically convert all call sites.
 1.13.68.2  21-Mar-2021  thorpej CFARG_IATTR usage audit:

If a device carries only one interface attribute, there is no need
to specify it when calling config_search(); that specification is
meant only to disambiguate which interface attribute (which is a
proxy for "what kind of attach args are being used") is having
children attached. cfparent_match() will take care of ensuring that
any potential children can attach to one of the parent's iterface
attributes, and if the parent only carries one, no disambiguation is
necessary.
 1.13.68.1  20-Mar-2021  thorpej The proliferation if config_search_*() and config_found_*() combinations
is a little absurd, so begin to tidy this up:

- Introduce a new cfarg_t enumerated type, that defines the types of
tag-value variadic arguments that can be passed to the various
config_*() functions (CFARG_SUBMATCH, CFARG_IATTR, and CFARG_LOCATORS,
for now, plus a CFARG_EOL sentinel).
- Collapse config_search_*() into config_search() that takes these
variadic arguments.
- Convert all call sites of config_search_*() to the new signature.
Noticed several incorrect usages along the way, which will be
audited in a future commit.
 1.14.8.1  04-Aug-2021  thorpej Adapt to CFARGS().

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