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History log of /src/sys/dev/qbus/uba.c
RevisionDateAuthorComments
 1.83  07-Aug-2021  thorpej Merge thorpej-cfargs2.
 1.82  24-Apr-2021  thorpej branches: 1.82.8;
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?).
 1.81  10-Nov-2019  chs branches: 1.81.10;
in many device attach paths, allocate memory with M_WAITOK instead of M_NOWAIT
and remove code to handle failures that can no longer happen.
 1.80  22-May-2017  ragge branches: 1.80.10;
Update copyright notice for Ludd (remove clause 3 & 4).
 1.79  13-Nov-2010  uebayasi branches: 1.79.18; 1.79.36;
Don't pull in the whole uvm(9) API to access only PAGE_SIZE and
some other constants. These are provided by sys/param.h now.
 1.78  23-Nov-2009  rmind branches: 1.78.4;
Remove some unecessary includes sys/user.h header.
 1.77  11-Mar-2008  matt branches: 1.77.4;
Rototill the vax code. Switch to devicet/PRIV_ALLOC. Cleanup vax autoconf
code. Move to prototype definitions. staticfy, constify, avoid casting.
Use device_* accessors.
 1.76  19-Oct-2007  ad branches: 1.76.12; 1.76.16;
machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h
 1.75  04-Mar-2007  christos branches: 1.75.2; 1.75.14; 1.75.16; 1.75.20;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.
 1.74  25-Mar-2006  thorpej branches: 1.74.14;
Use device_parent().
 1.73  11-Dec-2005  christos branches: 1.73.4; 1.73.6; 1.73.8; 1.73.10; 1.73.12;
merge ktrace-lwp.
 1.72  26-Aug-2005  drochner s/locdesc_t/int/g
 1.71  26-Feb-2005  simonb branches: 1.71.4;
White space nits.
 1.70  14-Dec-2004  chs branches: 1.70.2; 1.70.4;
use the generated macros in locators.h rather than hard-coded numbers
to index the cf_loc[] array. reviewed by allen briggs.
 1.69  08-Sep-2004  drochner use interface attribute / locator passing versions
of config_search()
 1.68  28-Aug-2003  ragge Keep track of which addresses that are used by devices, so that probing
do not fiddle with registers on already found devices.
 1.67  07-Aug-2003  agc Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.
 1.66  18-Jun-2003  drochner branches: 1.66.2;
don't #include <sys/dkstat.h> where it is (appearently) unused
 1.65  01-Apr-2003  thorpej Use PAGE_SIZE rather than NBPG.
 1.64  01-Jan-2003  thorpej Use aprint_normal() in cfprint routines.
 1.63  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.
 1.62  27-Sep-2002  thorpej 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.
 1.61  25-Sep-2002  thorpej Don't include <sys/map.h>.
 1.60  01-Jun-2002  lukem SIMPLEQ rototill:
- implement SIMPLEQ_REMOVE(head, elm, type, field). whilst it's O(n),
this mirrors the functionality of SLIST_REMOVE() (the other
singly-linked list type) and FreeBSD's STAILQ_REMOVE()
- remove the unnecessary elm arg from SIMPLEQ_REMOVE_HEAD().
this mirrors the functionality of SLIST_REMOVE_HEAD() (the other
singly-linked list type) and FreeBSD's STAILQ_REMOVE_HEAD()
- remove notes about SIMPLEQ not supporting arbitrary element removal
- use SIMPLEQ_FOREACH() instead of home-grown for loops
- use SIMPLEQ_EMPTY() appropriately
- use SIMPLEQ_*() instead of accessing sqh_first,sqh_last,sqe_next directly
- reorder manual page; be consistent about how the types are listed
- other minor cleanups
 1.59  15-Nov-2001  lukem branches: 1.59.8;
don't need <sys/types.h> when including <sys/param.h>
 1.58  13-Nov-2001  lukem add RCSIDs
 1.57  26-Apr-2001  ragge branches: 1.57.2;
Add functions to allocate mapped-in qbus memory.
 1.56  12-Apr-2001  thorpej splimp -> spluba.
 1.55  28-Jun-2000  mrg branches: 1.55.2;
remove include of <vm/vm.h>
 1.54  26-Jun-2000  mrg remove/move more mach vm header files:

<vm/pglist.h> -> <uvm/uvm_pglist.h>
<vm/vm_inherit.h> -> <uvm/uvm_inherit.h>
<vm/vm_kern.h> -> into <uvm/uvm_extern.h>
<vm/vm_object.h> -> nothing
<vm/vm_pager.h> -> into <uvm/uvm_pager.h>

also includes a bunch of <vm/vm_page.h> include removals (due to redudancy
with <vm/vm.h>), and a scattering of other similar headers.
 1.53  05-Jun-2000  matt Adjust to new evcnt stuff.
 1.52  04-Jun-2000  matt Start couting interrupts.
 1.51  30-Apr-2000  ragge branches: 1.51.2;
Add function uba_reset_establish() to register reset functions like
uba_intr_establish(). Basic framework for resource (BDP) allocation,
not yet finished.
 1.50  30-Mar-2000  augustss Remove register declarations.
 1.49  24-Jan-2000  matt Revamp the VAX interrupt handling code. Make it compatible with all the
other ports. Clean up some things.
 1.48  20-Jun-1999  ragge branches: 1.48.2; 1.48.4;
Fix a erroneous malloc.
 1.47  06-Jun-1999  ragge Fix map register/DMA wait queues.
Still to do:
BDP handling. Currently missing.
Ubareset's won't work at all.
 1.46  27-May-1999  ragge Moved from ../dec/qbus/uba.c,v
 1.45  27-May-1999  ragge Directory called qbus instead of uba, per request from Matt/Jason/...
(More describing name actually)
 1.44  26-May-1999  ragge DZ-11 routines bus'ified. Small fixes to uba routines.
 1.43  24-May-1999  ragge First step towards MI Unibus/Q22 bus code.
 1.42  02-Feb-1999  ragge Another giant change: Allocate register space dynamic instead of compiled-in.
This is done on a physical page size basis, instead of virtual (as the
(on vax yet non-existing) bus_* routines does). This is similar to the
way uba allocation is done.
 1.41  19-Jan-1999  ragge Fix some void pointers.
 1.40  19-Jan-1999  ragge Allocate (almost) all interrupt vectors dynamically. Simplifies much
work when adding support for new machines and devices.
 1.39  01-Jan-1999  ragge Giant change: NBPG now set to 4k and CLSIZE == 1 for vax. This change
made a whole bunch of annoying bugs disappear; mostly depending on
bad use of NBPG in non-MD code. The VAX port was the only port that
used this historical "feature".

The CL* macros should probably go away totally, there is no reason
at all to keep them.
 1.38  29-Nov-1998  ragge the btoc/ctob/btop macros must use CLBYTES, not NBPG. How this should
work in the long run is an open issue; some parts must be reworked
in a MI way.
 1.37  05-Nov-1998  ragge EGCS fixes.
 1.36  18-Oct-1998  ragge Support for DWBUA (BI to Unibus adapter) and KLESI-B (TMSCP tape ctlr) added.
 1.35  06-Oct-1998  matt Change backplace0 to mainbus0 (for consistency with other ports).
Remove unused function protocols from ka410.h and ka43.h
Fix some ka46 missing references
 1.34  21-Mar-1998  ragge ubasetup() must be non-static. (used by QDSS)
 1.33  02-Mar-1998  ragge Support for UVM on VAXen.
 1.32  24-Jan-1998  ragge Remove __BROKEN_INDIRECT_CONFIG and change all drivers to use
config_search instead.
 1.31  18-Jan-1998  ragge Make kernel compile & run again after latest config changes.
 1.30  12-Jan-1998  thorpej Update for changes to config.
 1.29  13-Oct-1996  christos backout previous kprintf change
 1.28  11-Oct-1996  christos printf -> kprintf, sprintf -> ksprintf
 1.27  27-Aug-1996  cgd change cfprint_t type definition to take a const char *, rather than
a char *, because that's what was really intended, and because
if the print function modifies the string, various things could become
unhappy (so the string should _not_ be modified).
 1.26  20-Aug-1996  ragge Modified to get cleaner match/attach code for different parent buses.
Fix so that resource wait queueing works.
Changed all functions to take a pointer to uba_softc instead of unit
number, except for ubareset(). This must be done later.
 1.25  20-Jul-1996  ragge CPU determine code. ts driver converted to new config. May work, untested.
 1.24  11-Jul-1996  ragge Automatic changing of root device after boot now works.
 1.23  01-Jul-1996  ragge Remove code that took care of old config devices. Don't support
old config anymore, all devices should use new config by now.
Add structures to handle DMA devices using new config.
Fixed bug that caused unwanted ubareset's on 11/780.
 1.22  08-Apr-1996  ragge Added prototypes to everything. Made all files compile with -Wall.
 1.21  18-Mar-1996  ragge Ubareset are now possible, devices that wants it now set it up
during autoconfig. ifubareset (if_reset) no longer used, actually
it's just a normal ubareset and is now handled like that.
 1.20  17-Mar-1996  ragge Convert all devices according to the changes to config.
 1.19  09-Mar-1996  ragge Check on which SBI we are frobbing, not always 0.
 1.18  07-Mar-1996  ragge Support for VAX 8600/8650 added. Works with lots of Unibus adapters,
and will probably work with Massbus adapters as well. (Not tested,
but it's the same code as for 11/780). Ubareset's may cause crashes
on 8600 also like 11/780, but they are more uncommon. No support
for console RL02 yet, but it's likely to come.
 1.17  02-Mar-1996  ragge Add support for DW780. Note that ubareset's don't work properly.
This is not a problem on other Unibus adapters, but DW780's do
ubareset's more often. This needs to be fixed by someone someday.
 1.16  11-Feb-1996  ragge Remove csralloc(), not usable anymore.
Add ubasetvec() to steal interrupt vectors for device drivers that
need more than one vector. Add prototype for it.
 1.15  02-Feb-1996  mycroft Fix type errors.
 1.14  02-Feb-1996  mycroft Fix #includes.
 1.13  02-Feb-1996  mycroft Fix #includes.
 1.12  28-Dec-1995  thorpej Move the old-style disk instrumentation "structures" to a central location
(sys/kern/subr_disk.c) and note that they should/will be deperecated.
 1.11  13-Dec-1995  ragge MicroVAX III support added.
Dummy match/attach routines for tmscp.
Conversion of uda.c towards new config.
 1.10  01-Dec-1995  ragge UBA converted to new config. (uba's now can be *'ed). Bug causing
DMA writes to nonexistent memory pages fixed. Code for old config
of non-mass-storage devices removed. (they now must use new config).
 1.9  10-Nov-1995  ragge Dynamic allocate uba_softc and interrupt vectors.
Allow for more that one uba.
 1.8  16-Jun-1995  ragge d_reset reference removed. Calling of ubareset must be solved.
 1.7  30-Mar-1995  ragge Bug fixes of interrupt handlers.
 1.6  23-Feb-1995  ragge Support for uVAXII, new tmscp driver added.
 1.5  13-Feb-1995  ragge Fixes for new config.
 1.4  25-Nov-1994  ragge New handling of pte:s for physio.
 1.3  26-Oct-1994  cgd new RCS ID format.
 1.2  08-Oct-1994  ragge Fixed bugs according to old memory system.
 1.1  02-Aug-1994  ragge Initial VAX port merging.
 1.48.4.2  21-Apr-2001  bouyer Sync with HEAD
 1.48.4.1  20-Nov-2000  bouyer Update thorpej_scsipi to -current as of a month ago
A i386 GENERIC kernel compiles without the siop, ahc and bha drivers
(will be updated later). i386 IDE/ATAPI and ncr work, as well as
sparc/esp_sbus. alpha should work as well (untested yet).
siop, ahc and bha will be updated once I've updated the branch to current
-current, as well as machine-dependant code.
 1.48.2.3  01-Jul-1999  thorpej Sync w/ -current.
 1.48.2.2  21-Jun-1999  thorpej Sync w/ -current.
 1.48.2.1  20-Jun-1999  thorpej file uba.c was added on branch chs-ubc2 on 1999-06-21 01:18:55 +0000
 1.51.2.1  22-Jun-2000  minoura Sync w/ netbsd-1-5-base.
 1.55.2.6  03-Jan-2003  thorpej Sync with HEAD.
 1.55.2.5  18-Oct-2002  nathanw Catch up to -current.
 1.55.2.4  20-Jun-2002  nathanw Catch up to -current.
 1.55.2.3  08-Jan-2002  nathanw Catch up to -current.
 1.55.2.2  14-Nov-2001  nathanw Catch up to -current.
 1.55.2.1  21-Jun-2001  nathanw Catch up to -current.
 1.57.2.3  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
 1.57.2.2  23-Jun-2002  jdolecek catch up with -current on kqueue branch
 1.57.2.1  10-Jan-2002  thorpej Sync kqueue branch with -current.
 1.59.8.1  20-Jun-2002  gehenna catch up with -current.
 1.66.2.6  10-Nov-2005  skrll Sync with HEAD. Here we go again...
 1.66.2.5  04-Mar-2005  skrll Sync with HEAD.

Hi Perry!
 1.66.2.4  18-Dec-2004  skrll Sync with HEAD.
 1.66.2.3  21-Sep-2004  skrll Fix the sync with head I botched.
 1.66.2.2  18-Sep-2004  skrll Sync with HEAD.
 1.66.2.1  03-Aug-2004  skrll Sync with HEAD
 1.70.4.1  19-Mar-2005  yamt sync with head. xen and whitespace. xen part is not finished.
 1.70.2.1  29-Apr-2005  kent sync with -current
 1.71.4.4  17-Mar-2008  yamt sync with head.
 1.71.4.3  27-Oct-2007  yamt sync with head.
 1.71.4.2  03-Sep-2007  yamt sync with head.
 1.71.4.1  21-Jun-2006  yamt sync with head.
 1.73.12.1  28-Mar-2006  tron Merge 2006-03-28 NetBSD-current into the "peter-altq" branch.
 1.73.10.1  19-Apr-2006  elad sync with head.
 1.73.8.1  01-Apr-2006  yamt sync with head.
 1.73.6.1  22-Apr-2006  simonb Sync with head.
 1.73.4.1  09-Sep-2006  rpaulo sync with head
 1.74.14.1  12-Mar-2007  rmind Sync with HEAD.
 1.75.20.1  25-Oct-2007  bouyer Sync with HEAD.
 1.75.16.2  23-Mar-2008  matt sync with HEAD
 1.75.16.1  06-Nov-2007  matt sync with HEAD
 1.75.14.1  26-Oct-2007  joerg Sync with HEAD.

Follow the merge of pmap.c on i386 and amd64 and move
pmap_init_tmp_pgtbl into arch/x86/x86/pmap.c. Modify the ACPI wakeup
code to restore CR4 before jumping back into kernel space as the large
page option might cover that.
 1.75.2.1  23-Oct-2007  ad Sync with head.
 1.76.16.1  03-Apr-2008  mjf Sync with HEAD.
 1.76.12.1  24-Mar-2008  keiichi sync with head.
 1.77.4.1  11-Mar-2010  yamt sync with head
 1.78.4.1  05-Mar-2011  rmind sync with head
 1.79.36.1  28-Aug-2017  skrll Sync with HEAD
 1.79.18.1  03-Dec-2017  jdolecek update from HEAD
 1.80.10.1  13-Apr-2020  martin Mostly merge changes from HEAD upto 20200411
 1.81.10.5  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.
 1.81.10.4  04-Apr-2021  thorpej CFARG_SUBMATCH -> CFARG_SEARCH for the indirect configuration uses.
 1.81.10.3  03-Apr-2021  thorpej Give config_attach() the tagged variadic argument treatment and
mechanically convert all call sites.
 1.81.10.2  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.
 1.81.10.1  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.
 1.82.8.1  04-Aug-2021  thorpej Adapt to CFARGS().

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