Home | History | Annotate | only in /src/sys/arch/arm/at91
History log of /src/sys/arch/arm/at91
RevisionDateAuthorComments
 1.6 17-Jun-2020  thorpej <sys/extent.h> not needed here.
 1.5 18-Sep-2012  matt Add bounce buffer support for ARM bus_dma(9). Add macros to help initialize
bus_dma_tag structures.
 1.4 01-Jul-2011  dyoung branches: 1.4.2; 1.4.12;
#include <sys/bus.h> instead of <machine/bus.h>.
 1.3 23-Oct-2009  snj Switch to a 2 clause license. Approved by joff@ (copyright holder).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91_bus_dma.c was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91_bus_dma.c was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.4.12.1 20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.4.2.1 30-Oct-2012  yamt sync with head
 1.6 21-Apr-2023  skrll Trailing whitespace
 1.5 16-Mar-2018  ryo use designated initializer to make adaptability and flexibility for changing struct bus_space.
no functional change.
 1.4 01-Jul-2011  dyoung branches: 1.4.52;
#include <sys/bus.h> instead of <machine/bus.h>.
 1.3 23-Oct-2009  snj Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91_bus_space.c was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91_bus_space.c was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.4.52.1 22-Mar-2018  pgoyette Synch with HEAD, resolve conflicts
 1.13 21-Jul-2022  andvar fix typos in comments and log messages, mainly s/intrrupt/interrupt/.
 1.12 20-Nov-2020  thorpej malloc(9) -> kmem(9)
 1.11 26-Mar-2014  christos branches: 1.11.42;
kill sprintf
 1.10 12-Nov-2012  skrll branches: 1.10.2;
C99 types
 1.9 02-Aug-2012  skrll branches: 1.9.2;
Remove irqframe and replace with identical trapframe.
 1.8 04-Nov-2011  aymeric attach event counters later, at attach time. Caught by an assertion
 1.7 01-Jul-2011  dyoung branches: 1.7.2;
#include <sys/bus.h> instead of <machine/bus.h>.
 1.6 06-Jun-2011  matt Some more device_t, cfdata_t, CFATTACH_DECL_NEW cleanup.
 1.5 20-Dec-2010  matt branches: 1.5.6;
Move counting of faults, traps, intrs, soft[intr]s, syscalls, and nswtch
from uvmexp to per-cpu cpu_data and move them to 64bits. Remove unneeded
includes of <uvm/uvm_extern.h> and/or <uvm/uvm.h>.
 1.4 13-Jun-2010  tsutsui Apply fixes for PR port-arm/43339:
Set proper IPL_SOFTfoo values even in !FAST_SOFTINTS case.
Some assertions in MI code expect they have unique values,
per comments from rmind@.

Also cleanup various "interrupt hierarchy" code since IPL_NONE and
IPL_SOFTfoo should not be set by any hardware interrupt establish functions.

Ok'ed by mrg@, tested on shark and hpcarm.
 1.3 23-Oct-2009  snj branches: 1.3.2; 1.3.4;
Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91aic.c was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.3 11-Aug-2010  yamt sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91aic.c was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.3.4.3 12-Jun-2011  rmind sync with head
 1.3.4.2 05-Mar-2011  rmind sync with head
 1.3.4.1 03-Jul-2010  rmind sync with head
 1.3.2.1 17-Aug-2010  uebayasi Sync with HEAD.
 1.5.6.1 23-Jun-2011  cherry Catchup with rmind-uvmplock merge.
 1.7.2.4 22-May-2014  yamt sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs. ("Protocol error: too many arguments")
 1.7.2.3 16-Jan-2013  yamt sync with (a bit old) head
 1.7.2.2 30-Oct-2012  yamt sync with head
 1.7.2.1 10-Nov-2011  yamt sync with head
 1.9.2.2 20-Aug-2014  tls Rebase to HEAD as of a few days ago.
 1.9.2.1 20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.10.2.1 18-May-2014  rmind sync with head
 1.11.42.1 14-Dec-2020  thorpej Sync w/ HEAD.
 1.3 23-Oct-2009  snj Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91aicreg.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91aicreg.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.5 12-Nov-2012  skrll C99 types
 1.4 02-Aug-2012  skrll branches: 1.4.2;
Remove irqframe and replace with identical trapframe.
 1.3 23-Oct-2009  snj branches: 1.3.12;
Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91aicvar.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91aicvar.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.3.12.2 16-Jan-2013  yamt sync with (a bit old) head
 1.3.12.1 30-Oct-2012  yamt sync with head
 1.4.2.1 20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.30 20-Feb-2024  andvar Fix format specifier for physmem from %d to 0x%"PRIxPSIZE" in multiple places.

Should fix VERBOSE_INIT_ARM for various evbarm kernel configs.
Also add 0x prefix in few previously fixed places to improve readability.
 1.29 07-Aug-2021  thorpej Merge thorpej-cfargs2.
 1.28 24-Apr-2021  thorpej branches: 1.28.8;
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?).
 1.27 18-Apr-2020  skrll branches: 1.27.4;
PMAP_DEBUG has been deleted on arm
 1.26 18-Apr-2020  skrll Trailing whitespace
 1.25 16-Jul-2019  skrll branches: 1.25.8;
Consistently use vaddr_t as initarm and friends return type.

Makes no difference to binaries except for aarch64 where it's required
 1.24 16-Jul-2019  skrll KNF
 1.23 28-Oct-2018  skrll Fix a commit
 1.22 21-Sep-2018  skrll Centralise defparam CONSADDR, CONSPEED, CONMODE and CONADDR into
opt_console.h and adjust.
 1.21 31-Jul-2018  skrll Sprinkle #include "opt_arm_debug.h" where VERBOSE_INIT_ARM is used
 1.20 15-Jul-2018  maxv Retire ipkdb entirely. The option was removed from the config files
yesterday.

ok kamil christos
 1.19 22-Dec-2016  cherry branches: 1.19.14; 1.19.16;
switch all ports to use uvm_init.c:uvm_md_init()

uvm_setpagesize() is now subsumed within this funciton.
 1.18 13-Sep-2014  matt branches: 1.18.2; 1.18.4;
Replace more vm_offset_t, vm_size_t with vaddr_t, vsize_t
Use paddr_t for msgbufphys
 1.17 18-Aug-2013  matt <arm/locore.h> fallout (fixes some include ordering errors)
 1.16 12-Nov-2012  skrll branches: 1.16.2;
C99 types
 1.15 29-Oct-2012  chs add missing arg to cpu_setttb().
 1.14 01-Sep-2012  matt branches: 1.14.2;
Move things around for <arm/arm32/machdep.h>
 1.13 30-Jul-2012  matt More -fno-common fixes
 1.12 04-Nov-2011  aymeric add preliminary support for AT91SAM9260
 1.11 01-Jul-2011  dyoung branches: 1.11.2;
#include <sys/bus.h> instead of <machine/bus.h>.
 1.10 26-Dec-2009  uebayasi Use cpu_* prefix to call cpu_* functions (setttb() -> cpu_setttb()); no
functional changes.
 1.9 27-Nov-2009  rmind - Use uvm_lwp_setuarea() instead of directly setting address to lwp_t::l_addr.
- Replace most remaining uses of l_addr with uvm_lwp_getuarea() or lwp_getpcb().
- Amend assembly in ports where it accesses PCB via struct user.
- Rename L_ADDR to L_PCB in few places. Reduce sys/user.h inclusions.
 1.8 26-Nov-2009  matt Kill proc0paddr. Use lwp0.l_addr instead.
 1.7 23-Oct-2009  snj Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.6 11-Aug-2009  matt Remove all declarations of physmem from sys/arch. Add an include of
<sys/systm.h> to the one file that did not already contain it.
This now means that physmem can be changed by updating systm.h and uvm_page.c
(excluding fixing printfs)
 1.5 14-Mar-2009  dsl 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.)
 1.4 30-Nov-2008  martin branches: 1.4.4;
As discussed on tech-kern: mutex_init is too heavyweight for early bootstrap
phases, so move the initialization of the ksyms mutex back into main via
a function called ksyms_init. Rename the existing (but quite different)
ksyms_init* variations into ksyms_addsyms_elf() and ksyms_addsyms_explicit()
and adapt machdep code accordingly.
 1.3 12-Nov-2008  ad Remove LKMs and switch to the module framework, pass 1.

Proposed on tech-kern@.
 1.2 03-Jul-2008  matt branches: 1.2.2; 1.2.4; 1.2.6;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91bus.c was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.3 11-Mar-2010  yamt sync with head
 1.1.20.2 19-Aug-2009  yamt sync with head.
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.2 17-Jan-2009  mjf Sync with HEAD.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.6.2 28-Apr-2009  skrll Sync with HEAD.
 1.2.6.1 19-Jan-2009  skrll Sync with HEAD.
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91bus.c was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.2.2.1 13-Dec-2008  haad Update haad-dm branch to haad-dm-base2.
 1.4.4.1 13-May-2009  jym Sync with HEAD.

Commit is split, to avoid a "too many arguments" protocol error.
 1.11.2.4 22-May-2014  yamt sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs. ("Protocol error: too many arguments")
 1.11.2.3 16-Jan-2013  yamt sync with (a bit old) head
 1.11.2.2 30-Oct-2012  yamt sync with head
 1.11.2.1 10-Nov-2011  yamt sync with head
 1.14.2.3 03-Dec-2017  jdolecek update from HEAD
 1.14.2.2 20-Aug-2014  tls Rebase to HEAD as of a few days ago.
 1.14.2.1 20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.16.2.1 28-Aug-2013  rmind sync with head
 1.18.4.1 07-Jan-2017  pgoyette Sync with HEAD. (Note that most of these changes are simply $NetBSD$
tag issues.)
 1.18.2.1 05-Feb-2017  skrll Sync with HEAD
 1.19.16.3 21-Apr-2020  martin Sync with HEAD
 1.19.16.2 13-Apr-2020  martin Mostly merge changes from HEAD upto 20200411
 1.19.16.1 10-Jun-2019  christos Sync with HEAD
 1.19.14.4 26-Nov-2018  pgoyette Sync with HEAD, resolve a couple of conflicts
 1.19.14.3 30-Sep-2018  pgoyette Ssync with HEAD
 1.19.14.2 06-Sep-2018  pgoyette Sync with HEAD

Resolve a couple of conflicts (result of the uimin/uimax changes)
 1.19.14.1 28-Jul-2018  pgoyette Sync with HEAD
 1.25.8.1 20-Apr-2020  bouyer Sync with HEAD
 1.27.4.8 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.
 1.27.4.7 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.
 1.27.4.6 04-Apr-2021  thorpej CFARG_SUBMATCH -> CFARG_SEARCH for the indirect configuration uses.
 1.27.4.5 03-Apr-2021  thorpej Give config_attach() the tagged variadic argument treatment and
mechanically convert all call sites.
 1.27.4.4 22-Mar-2021  thorpej Audit CFARG_IATTR in config_found() calls, and remove it in situations
where the interface attribute is not ambiguous.
 1.27.4.3 22-Mar-2021  thorpej Mechanical conversion of config_found_sm_loc() -> config_found().
CFARG_IATTR usage needs to be audited.
 1.27.4.2 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.
 1.27.4.1 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.
 1.28.8.1 04-Aug-2021  thorpej Adapt to CFARGS().
 1.8 21-Apr-2023  skrll Trailing whitespace
 1.7 16-Jul-2019  skrll Consistently use vaddr_t as initarm and friends return type.

Makes no difference to binaries except for aarch64 where it's required
 1.6 12-Nov-2012  skrll branches: 1.6.38;
C99 types
 1.5 02-Aug-2012  skrll branches: 1.5.2;
Remove irqframe and replace with identical trapframe.
 1.4 01-Jul-2011  dyoung branches: 1.4.2;
#include <sys/bus.h> instead of <machine/bus.h>.
 1.3 23-Oct-2009  snj Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91busvar.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91busvar.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.4.2.2 16-Jan-2013  yamt sync with (a bit old) head
 1.4.2.1 30-Oct-2012  yamt sync with head
 1.5.2.1 20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.6.38.1 13-Apr-2020  martin Mostly merge changes from HEAD upto 20200411
 1.8 27-Sep-2022  skrll malloc -> kmem
 1.7 07-Aug-2021  thorpej Merge thorpej-cfargs2.
 1.6 24-Apr-2021  thorpej branches: 1.6.8;
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?).
 1.5 10-Nov-2019  chs branches: 1.5.10;
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.
 1.4 26-Jul-2011  dyoung branches: 1.4.54;
Don't set the iobase and iosize members of pcmciabus_attach_args because
they're not used in any meaningful way.
 1.3 01-Jul-2011  dyoung #include <sys/bus.h> instead of <machine/bus.h>.
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91cf.c was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91cf.c was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.4.54.1 13-Apr-2020  martin Mostly merge changes from HEAD upto 20200411
 1.5.10.1 23-Mar-2021  thorpej Convert config_found_ia() call sites where the device only carries
a single interface attribute to bare config_found() calls.
 1.6.8.1 04-Aug-2021  thorpej Adapt to CFARGS().
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91cfvar.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91cfvar.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.19 26-Oct-2022  riastradh ddb/db_active.h: New home for extern db_active.

This can be included unconditionally, and db_active can then be
queried unconditionally; if DDB is not in the kernel, then db_active
is a constant zero. Reduces need for #include opt_ddb.h, #ifdef DDB.
 1.18 20-Nov-2020  thorpej malloc(9) -> kmem(9)
 1.17 15-Dec-2019  tsutsui branches: 1.17.8;
Remove clause 3 and 4 leftovers from TNF licenses in more sources.

Confirmed by martin@ in PR/54760.
 1.16 10-Nov-2019  chs 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.
 1.15 21-Sep-2015  skrll branches: 1.15.2; 1.15.8; 1.15.18; 1.15.22;
Deal with unused variable warnings
 1.14 13-Apr-2015  riastradh MD rnd.h cleanups. Please let me know if I broke anything!
 1.13 15-Nov-2014  christos branches: 1.13.2;
centralize the call unit / dialout macros
 1.12 10-Aug-2014  tls Merge tls-earlyentropy branch into HEAD.
 1.11 25-Jul-2014  dholland Add d_discard to all struct cdevsw instances I could find.

All have been set to "nodiscard"; some should get a real implementation.
 1.10 16-Mar-2014  dholland branches: 1.10.2;
Change (mostly mechanically) every cdevsw/bdevsw I can find to use
designated initializers.

I have not built every extant kernel so I have probably broken at
least one build; however I've also found and fixed some wrong
cdevsw/bdevsw entries so even if so I think we come out ahead.
 1.9 12-Nov-2012  skrll branches: 1.9.2;
C99 types
 1.8 02-Feb-2012  tls branches: 1.8.6;
Entropy-pool implementation move and cleanup.

1) Move core entropy-pool code and source/sink/sample management code
to sys/kern from sys/dev.

2) Remove use of NRND as test for presence of entropy-pool code throughout
source tree.

3) Remove use of RND_ENABLED in device drivers as microoptimization to
avoid expensive operations on disabled entropy sources; make the
rnd_add calls do this directly so all callers benefit.

4) Fix bug in recent rnd_add_data()/rnd_add_uint32() changes that might
have lead to slight entropy overestimation for some sources.

5) Add new source types for environmental sensors, power sensors, VM
system events, and skew between clocks, with a sample implementation
for each.

ok releng to go in before the branch due to the difficulty of later
pullup (widespread #ifdef removal and moved files). Tested with release
builds on amd64 and evbarm and live testing on amd64.
 1.7 04-Nov-2011  aymeric branches: 1.7.4;
use CFATTACH_DECL_NEW
 1.6 01-Jul-2011  dyoung branches: 1.6.2;
#include <sys/bus.h> instead of <machine/bus.h>.
 1.5 24-Apr-2011  rmind Rename ttymalloc() to tty_alloc(), and ttyfree() to tty_free() for
consistency. Remove some unnecessary malloc.h inclusions as well.
 1.4 19-Jun-2010  matt branches: 1.4.2;
Misc fixes to get this to compile again.
 1.3 14-Mar-2009  dsl branches: 1.3.2; 1.3.4;
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.)
 1.2 03-Jul-2008  matt branches: 1.2.4; 1.2.6; 1.2.12;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91dbgu.c was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Aug-2010  yamt sync with head.
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.12.1 13-May-2009  jym Sync with HEAD.

Commit is split, to avoid a "too many arguments" protocol error.
 1.2.6.1 28-Apr-2009  skrll Sync with HEAD.
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91dbgu.c was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.3.4.2 31-May-2011  rmind sync with head
 1.3.4.1 03-Jul-2010  rmind sync with head
 1.3.2.1 17-Aug-2010  uebayasi Sync with HEAD.
 1.4.2.1 06-Jun-2011  jruoho Sync with HEAD.
 1.6.2.4 22-May-2014  yamt sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs. ("Protocol error: too many arguments")
 1.6.2.3 16-Jan-2013  yamt sync with (a bit old) head
 1.6.2.2 17-Apr-2012  yamt sync with head
 1.6.2.1 10-Nov-2011  yamt sync with head
 1.7.4.1 18-Feb-2012  mrg merge to -current.
 1.8.6.3 03-Dec-2017  jdolecek update from HEAD
 1.8.6.2 20-Aug-2014  tls Rebase to HEAD as of a few days ago.
 1.8.6.1 20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.9.2.1 18-May-2014  rmind sync with head
 1.10.2.2 10-Aug-2014  tls Rebase.
 1.10.2.1 07-Apr-2014  tls Be a little more clear and consistent about harvesting entropy from devices:

1) deprecate RND_FLAG_NO_ESTIMATE

2) define RND_FLAG_COLLECT_TIME, RND_FLAG_COLLECT_VALUE

3) define RND_FLAG_ESTIMATE_TIME, RND_FLAG_ESTIMATE_VALUE

4) define RND_FLAG_DEFAULT: RND_FLAG_COLLECT_TIME|
RND_FLAG_COLLECT_VALUE|RND_FLAG_ESTIMATE_TIME

5) Make entropy harvesting from environmental sensors a little more generic
and remove it from individual sensor drivers.

6) Remove individual open-coded delta-estimators for values from a few
places in the tree (uvm, environmental drivers).

7) 0 -> RND_FLAG_DEFAULT, actually gather entropy from various drivers
that had stubbed out code, other minor cleanups.
 1.13.2.2 22-Sep-2015  skrll Sync with HEAD
 1.13.2.1 06-Jun-2015  skrll Sync with HEAD
 1.15.22.1 18-Dec-2019  martin Pull up following revision(s) (requested by tsutsui in ticket #570):

sys/compat/netbsd32/netbsd32_compat_50_sysv.c: revision 1.3
sys/dev/raidframe/rf_compat50.h: revision 1.6
sys/arch/emips/emips/bus_space.c: revision 1.3
sys/compat/net/if.h: revision 1.5
sys/arch/emips/stand/common/bootinfo.c: revision 1.2
sys/compat/common/sysv_msg_50.c: revision 1.5
sys/compat/common/kern_time_30.c: revision 1.8
sys/arch/emips/stand/common/bootinfo.h: revision 1.2
sys/arch/ia64/include/bus.h: revision 1.4
sys/arch/ia64/ia64/bus_space.c: revision 1.2
sys/compat/common/sysv_shm_50.c: revision 1.5
sys/dev/ic/adw.h: revision 1.15
sys/compat/common/uipc_syscalls_50.c: revision 1.10
sys/arch/emips/ebus/flash_ebus.c: revision 1.22
sys/dev/ic/adv.h: revision 1.15
sys/dev/ic/adwmcode.c: revision 1.18
sys/dev/ic/advlib.c: revision 1.29
sys/arch/hpcarm/include/kloader.h: revision 1.3
sys/dev/usb/uberry.c: revision 1.16
sys/compat/common/sysv_sem_50.c: revision 1.5
sys/compat/netbsd32/netbsd32_compat_50.c: revision 1.43
sys/dev/ic/advlib.h: revision 1.21
sys/dev/ic/adv.c: revision 1.50
sys/compat/netinet6/in6_var.h: revision 1.5
sys/arch/hpc/stand/hpcboot/arm/arm_sa1100_asm.asm: revision 1.2
sys/arch/emips/include/loadfile_machdep.h: revision 1.3
sys/arch/emips/stand/common/prom_iface.c: revision 1.7
sys/dev/ic/adw.c: revision 1.56
sys/dev/ic/adwmcode.h: revision 1.12
sys/dev/ic/advmcode.c: revision 1.10
sys/arch/emips/ebus/ace_ebus.c: revision 1.22
sys/compat/netbsd32/netbsd32_compat_60.c: revision 1.5
sys/dev/raidframe/rf_compat50.c: revision 1.13
sys/arch/x68k/dev/intiovar.h: revision 1.15
sys/dev/usb/uipad.c: revision 1.8
sys/arch/zaurus/include/kloader.h: revision 1.3
sys/arch/emips/stand/common/bootxx.c: revision 1.2
sys/dev/ic/adwlib.h: revision 1.23
sys/dev/ic/adwlib.c: revision 1.44
sys/compat/netbsd32/netbsd32_compat_16.c: revision 1.3
sys/arch/amigappc/include/intr.h: revision 1.27
sys/arch/x68k/dev/mfp.c: revision 1.27
sys/arch/arm/at91/at91dbgu.c: revision 1.17
sys/dev/ic/advmcode.h: revision 1.7
sys/compat/ultrix/ultrix_exec.h: revision 1.7
sys/compat/common/vfs_syscalls_50.c: revision 1.24
sys/arch/mips/cavium/octeon_dma.c: revision 1.3
sys/arch/hpc/stand/hpcboot/arm/arm_pxa2x0_asm.asm: revision 1.2

Remove clause 3 and 4 from TNF licenses.
Ok'ed by martin@ in PR/54760.

Remove clause 3 and 4 leftovers from TNF licenses in more sources.
Confirmed by martin@ in PR/54760.
 1.15.18.2 13-Apr-2020  martin Mostly merge changes from HEAD upto 20200411
 1.15.18.1 08-Apr-2020  martin Merge changes from current as of 20200406
 1.15.8.1 27-Apr-2017  pgoyette Restore all work from the former pgoyette-localcount branch (which is
now abandoned doe to cvs merge botch).

The branch now builds, and installs via anita. There are still some
problems (cgd is non-functional and all atf tests time-out) but they
will get resolved soon.
 1.15.2.2 20-Jul-2016  pgoyette Redo previous. Rather than separately extracting the device_t, we can
rely on sc->sc_dev when we need to call device_release().
 1.15.2.1 19-Jul-2016  pgoyette Instead of repeatedly typing the conditional initialization of the
.d_localcount members in the various {b,c}devsw, define an initializer
macro and use it. This also removes the need for defining new symbols
for each 'struct localcount'.

As suggested by riastradh@
 1.17.8.1 14-Dec-2020  thorpej Sync w/ HEAD.
 1.5 12-Nov-2012  skrll C99 types
 1.4 04-Nov-2011  aymeric branches: 1.4.10;
fix AT91SAM9260 chip id
 1.3 23-Oct-2009  snj branches: 1.3.12;
Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91dbgureg.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91dbgureg.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.3.12.2 16-Jan-2013  yamt sync with (a bit old) head
 1.3.12.1 10-Nov-2011  yamt sync with head
 1.4.10.1 20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.6 14-Apr-2015  riastradh Include <sys/rndsource.h> where it is actually used.

I had removed <sys/rnd.h> from files that didn't mention anything of
the rnd(9) API. But they included other files which assumed
<sys/rnd.h> had already been included.
 1.5 02-Feb-2012  tls branches: 1.5.6; 1.5.24;
Entropy-pool implementation move and cleanup.

1) Move core entropy-pool code and source/sink/sample management code
to sys/kern from sys/dev.

2) Remove use of NRND as test for presence of entropy-pool code throughout
source tree.

3) Remove use of RND_ENABLED in device drivers as microoptimization to
avoid expensive operations on disabled entropy sources; make the
rnd_add calls do this directly so all callers benefit.

4) Fix bug in recent rnd_add_data()/rnd_add_uint32() changes that might
have lead to slight entropy overestimation for some sources.

5) Add new source types for environmental sensors, power sensors, VM
system events, and skew between clocks, with a sample implementation
for each.

ok releng to go in before the branch due to the difficulty of later
pullup (widespread #ifdef removal and moved files). Tested with release
builds on amd64 and evbarm and live testing on amd64.
 1.4 19-Nov-2011  tls branches: 1.4.2;
First step of random number subsystem rework described in
<20111022023242.BA26F14A158@mail.netbsd.org>. This change includes
the following:

An initial cleanup and minor reorganization of the entropy pool
code in sys/dev/rnd.c and sys/dev/rndpool.c. Several bugs are
fixed. Some effort is made to accumulate entropy more quickly at
boot time.

A generic interface, "rndsink", is added, for stream generators to
request that they be re-keyed with good quality entropy from the pool
as soon as it is available.

The arc4random()/arc4randbytes() implementation in libkern is
adjusted to use the rndsink interface for rekeying, which helps
address the problem of low-quality keys at boot time.

An implementation of the FIPS 140-2 statistical tests for random
number generator quality is provided (libkern/rngtest.c). This
is based on Greg Rose's implementation from Qualcomm.

A new random stream generator, nist_ctr_drbg, is provided. It is
based on an implementation of the NIST SP800-90 CTR_DRBG by
Henric Jungheim. This generator users AES in a modified counter
mode to generate a backtracking-resistant random stream.

An abstraction layer, "cprng", is provided for in-kernel consumers
of randomness. The arc4random/arc4randbytes API is deprecated for
in-kernel use. It is replaced by "cprng_strong". The current
cprng_fast implementation wraps the existing arc4random
implementation. The current cprng_strong implementation wraps the
new CTR_DRBG implementation. Both interfaces are rekeyed from
the entropy pool automatically at intervals justifiable from best
current cryptographic practice.

In some quick tests, cprng_fast() is about the same speed as
the old arc4randbytes(), and cprng_strong() is about 20% faster
than rnd_extract_data(). Performance is expected to improve.

The AES code in src/crypto/rijndael is no longer an optional
kernel component, as it is required by cprng_strong, which is
not an optional kernel component.

The entropy pool output is subjected to the rngtest tests at
startup time; if it fails, the system will reboot. There is
approximately a 3/10000 chance of a false positive from these
tests. Entropy pool _input_ from hardware random numbers is
subjected to the rngtest tests at attach time, as well as the
FIPS continuous-output test, to detect bad or stuck hardware
RNGs; if any are detected, they are detached, but the system
continues to run.

A problem with rndctl(8) is fixed -- datastructures with
pointers in arrays are no longer passed to userspace (this
was not a security problem, but rather a major issue for
compat32). A new kernel will require a new rndctl.

The sysctl kern.arandom() and kern.urandom() nodes are hooked
up to the new generators, but the /dev/*random pseudodevices
are not, yet.

Manual pages for the new kernel interfaces are forthcoming.
 1.3 23-Oct-2009  snj branches: 1.3.12;
Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91dbguvar.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91dbguvar.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.3.12.1 17-Apr-2012  yamt sync with head
 1.4.2.1 18-Feb-2012  mrg merge to -current.
 1.5.24.1 06-Jun-2015  skrll Sync with HEAD
 1.5.6.1 03-Dec-2017  jdolecek update from HEAD
 1.37 04-Oct-2025  thorpej Add a shared function to query the common properties used for configuring
an Ethernet address.
 1.36 05-Jul-2024  rin sys: Drop redundant NULL check before m_freem(9)

m_freem(9) safely has accepted NULL argument at least since 4.2BSD:
https://www.tuhs.org/cgi-bin/utree.pl?file=4.2BSD/usr/src/sys/sys/uipc_mbuf.c

Compile-tested on amd64/ALL.

Suggested by knakahara@
 1.35 27-Sep-2022  skrll branches: 1.35.10;
Remove unnecessary sys/malloc.h include
 1.34 17-Sep-2022  thorpej Eliminate use of IFF_OACTIVE.
 1.33 04-Nov-2021  skrll Remove unnecessary duplicate bit define in mask

PR port-arm/50687
 1.32 19-Feb-2020  thorpej When a media change is requested, don't just all (*if_init)(). That's
needlessly disruptive and incompatible with future locking changes.
We can use both ether_mediachange() and ether_mediastatus() instead.
 1.31 11-Feb-2020  skrll More <net/if_stats.h>
 1.30 04-Feb-2020  skrll Adopt <net/if_stats.h>
 1.29 28-May-2019  msaitoh branches: 1.29.4;
Use ETHER_LOCK()/ETHER_UNLOCK() for all ethernet drivers to protect ec_multi*.
 1.28 23-May-2019  msaitoh - Fix compile error (remove unused variable).
- KNF.
- ac -> ec
- Remove extra RCS Id.
 1.27 23-May-2019  msaitoh Whitespace fix (mainly tabify).
 1.26 23-May-2019  msaitoh No functional change:
- Simplify MII structure initialization and reference.
- u_int*_t -> uint*_t.
- KNF
 1.25 22-Apr-2019  msaitoh On drivers which use MII(4) and have hook SIOC[GS]IFMEDIA which just pass to
ifmedia_ioctl(), the hook is not required because ether_ioctl has it
(if_ethersubr.c rev. 1.160). These drivers don't return ENETRESET in
ifmedia_ioctl(), so no functional change.
 1.24 05-Feb-2019  msaitoh Remove very old IFF_NOTRAILERS flag.
 1.23 22-Jan-2019  msaitoh Change MII PHY read/write API from:

int (*mii_readreg_t)(device_t, int, int);
void (*mii_writereg_t)(device_t, int, int, int);
to:

int (*mii_readreg_t)(device_t, int, int, uint16_t *);
int (*mii_writereg_t)(device_t, int, int, uint16_t);

Now we can test if a read/write operation failed or not by the return value.

In 802.3 spec says that the PHY shall not respond to read/write transaction
to the unimplemented register(22.2.4.3). Detecting timeout can be used to
check whether a register is implemented or not (if the register conforms to
the spec). ukphy(4) can be used this for MII_MMDACR and MII_MMDAADR.

Note that I noticed that the following code do infinite loop in the
read/wirte function. If it accesses unimplemented PHY register, it will hang.
It should be fixed:

arm/at91/at91emac.c
arm/ep93xx/epe.c
arm/omap/omapl1x_emac.c
mips/ralink/ralink_eth.c
arch/powerpc/booke/dev/pq3etsec.c(read)
dev/cadence/if_cemac.c <- hkenken
dev/ic/lan9118.c


Tested with the following device:

axe+ukphy
axe+rgephy
axen+rgephy (tested by Andrius V)
wm+atphy
wm+ukphy
wm+igphy
wm+ihphy
wm+makphy
sk+makphy
sk+brgphy
sk+gentbi
msk+makphy
sip+icsphy
sip+ukphy
re+rgephy
bge+brgphy
bnx+brgphy
gsip+gphyter
rtk+rlphy
fxp+inphy (tested by Andrius V)
tlp+acphy
ex+exphy
epic+qsphy
vge+ciphy (tested by Andrius V)
vr+ukphy (tested by Andrius V)
vte+ukphy (tested by Andrius V)

Not tested (MAC):
arm:at91emac
arm:cemac
arm:epe
arm:geminigmac
arm:enet
arm:cpsw
arm:emac(omac)
arm:emac(sunxi)
arm:npe
evbppc:temac
macppc:bm
macppc:gm
mips:aumac
mips:ae
mips:cnmac
mips:reth
mips:sbmac
playstation2:smap
powerpc:tsec
powerpc:emac(ibm4xx)
sgimips:mec
sparc:be
sf
ne(ax88190, dl10019)
awge
ep
gem
hme
smsh
mtd
sm
age
alc
ale
bce
cas
et
jme
lii
nfe
pcn
ste
stge
tl
xi
aue
mue
smsc
udav
url

Not tested (PHY):
amhphy
bmtphy
dmphy
etphy
glxtphy
ikphy
iophy
lxtphy
nsphyter
pnaphy
rdcphy
sqphy
tlphy
tqphy
urlphy
 1.22 15-Jul-2018  maxv Retire ipkdb entirely. The option was removed from the config files
yesterday.

ok kamil christos
 1.21 26-Jun-2018  msaitoh branches: 1.21.2;
Implement the BPF direction filter (BIOC[GS]DIRECTION). It provides backward
compatibility with BIOC[GS]SEESENT ioctl. The userland interface is the same
as FreeBSD.

This change also fixes a bug that the direction is misunderstand on some
environment by passing the direction to bpf_mtap*() instead of checking
m->m_pkthdr.rcvif.
 1.20 22-Jun-2018  msaitoh It's not required to include net/bpfdesc.h. Remove it.
 1.19 20-Feb-2017  ozaki-r branches: 1.19.6; 1.19.12;
Apply deferred if_start to more drivers...
 1.18 15-Dec-2016  ozaki-r branches: 1.18.2;
Move bpf_mtap and if_ipackets++ on Rx of each driver to percpuq if_input

The benefits of the change are:
- We can reduce codes
- We can provide the same behavior between drivers
- Where/When if_ipackets is counted up
- Note that some drivers still update packet statistics in their own
way (periodical update)
- Moved bpf_mtap run in softint
- This makes it easy to MP-ify bpf

Proposed on tech-kern and tech-net
 1.17 10-Jun-2016  ozaki-r branches: 1.17.2;
Introduce m_set_rcvif and m_reset_rcvif

The API is used to set (or reset) a received interface of a mbuf.
They are counterpart of m_get_rcvif, which will come in another
commit, hide internal of rcvif operation, and reduce the diff of
the upcoming change.

No functional change.
 1.16 09-Feb-2016  ozaki-r Introduce softint-based if_input

This change intends to run the whole network stack in softint context
(or normal LWP), not hardware interrupt context. Note that the work is
still incomplete by this change; to that end, we also have to softint-ify
if_link_state_change (and bpf) which can still run in hardware interrupt.

This change softint-ifies at ifp->if_input that is called from
each device driver (and ieee80211_input) to ensure Layer 2 runs
in softint (e.g., ether_input and bridge_input). To this end,
we provide a framework (called percpuq) that utlizes softint(9)
and percpu ifqueues. With this patch, rxintr of most drivers just
queues received packets and schedules a softint, and the softint
dequeues packets and does rest packet processing.

To minimize changes to each driver, percpuq is allocated in struct
ifnet for now and that is initialized by default (in if_attach).
We probably have to move percpuq to softc of each driver, but it's
future work. At this point, only wm(4) has percpuq in its softc
as a reference implementation.

Additional information including performance numbers can be found
in the thread at tech-kern@ and tech-net@:
http://mail-index.netbsd.org/tech-kern/2016/01/14/msg019997.html

Acknowledgment: riastradh@ greatly helped this work.
Thank you very much!
 1.15 21-Sep-2015  skrll Deal with unused variable warnings
 1.14 20-May-2015  ozaki-r Remove leftover use of AF_NS and NS option

Unnecessary NETISR_NS is also removed.
 1.13 12-Nov-2012  skrll branches: 1.13.14;
C99 types
 1.12 27-Oct-2012  chs split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.
 1.11 22-Jul-2012  matt branches: 1.11.2;
Fix mii_statchg to take a 'struct ifnet *' instead of device_t. This fixes
problem with a common MDIO bus used for multiple interfaces.
Some drivers converted to CFATTACL_DECL_NEW.
 1.10 01-Jul-2011  dyoung branches: 1.10.2;
#include <sys/bus.h> instead of <machine/bus.h>.
 1.9 05-Apr-2010  joerg Push the bpf_ops usage back into bpf.h. Push the common ifp->if_bpf
check into the inline functions as well the fourth argument for
bpf_attach.
 1.8 22-Jan-2010  martin branches: 1.8.2; 1.8.4;
Unify the name of the device property to hold a MAC address - there was
no clear majority for either "mac-addr" vs. "mac-address", but a quick
gallup poll among developers selected the latter.
 1.7 19-Jan-2010  pooka Redefine bpf linkage through an always present op vector, i.e.
#if NBPFILTER is no longer required in the client. This change
doesn't yet add support for loading bpf as a module, since drivers
can register before bpf is attached. However, callers of bpf can
now be modularized.

Dynamically loadable bpf could probably be done fairly easily with
coordination from the stub driver and the real driver by registering
attachments in the stub before the real driver is loaded and doing
a handoff. ... and I'm not going to ponder the depths of unload
here.

Tested with i386/MONOLITHIC, modified MONOLITHIC without bpf and rump.
 1.6 23-Oct-2009  snj Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.5 18-Mar-2009  cegger bzero -> memset
 1.4 14-Mar-2009  dsl 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.
 1.3 14-Mar-2009  dsl 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.)
 1.2 03-Jul-2008  matt branches: 1.2.4; 1.2.6; 1.2.12;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91emac.c was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.3 11-Aug-2010  yamt sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.12.1 13-May-2009  jym Sync with HEAD.

Commit is split, to avoid a "too many arguments" protocol error.
 1.2.6.1 28-Apr-2009  skrll Sync with HEAD.
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91emac.c was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.8.4.1 30-May-2010  rmind sync with head
 1.8.2.1 30-Apr-2010  uebayasi Sync with HEAD.
 1.10.2.2 16-Jan-2013  yamt sync with (a bit old) head
 1.10.2.1 30-Oct-2012  yamt sync with head
 1.11.2.2 03-Dec-2017  jdolecek update from HEAD
 1.11.2.1 20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.13.14.6 28-Aug-2017  skrll Sync with HEAD
 1.13.14.5 05-Feb-2017  skrll Sync with HEAD
 1.13.14.4 09-Jul-2016  skrll Sync with HEAD
 1.13.14.3 19-Mar-2016  skrll Sync with HEAD
 1.13.14.2 22-Sep-2015  skrll Sync with HEAD
 1.13.14.1 06-Jun-2015  skrll Sync with HEAD
 1.17.2.2 20-Mar-2017  pgoyette Sync with HEAD
 1.17.2.1 07-Jan-2017  pgoyette Sync with HEAD. (Note that most of these changes are simply $NetBSD$
tag issues.)
 1.18.2.1 21-Apr-2017  bouyer Sync with HEAD
 1.19.12.3 26-Jan-2019  pgoyette Sync with HEAD
 1.19.12.2 28-Jul-2018  pgoyette Sync with HEAD
 1.19.12.1 25-Jun-2018  pgoyette Sync with HEAD
 1.19.6.1 26-Jul-2018  snj Pull up following revision(s) (requested by msaitoh in ticket #938):
sys/arch/acorn32/podulebus/if_ie.c: revision 1.41
sys/arch/amiga/dev/if_es.c: revision 1.58
sys/arch/amiga/dev/if_qn.c: revision 1.45
sys/arch/arm/at91/at91emac.c: revision 1.20
sys/arch/arm/ep93xx/epe.c: revision 1.37
sys/arch/emips/ebus/if_le_ebus.c: revision 1.14
sys/arch/emips/ebus/if_le_ebus.c: revision 1.15
sys/arch/mac68k/dev/if_mc.c: revision 1.46
sys/arch/macppc/dev/am79c950.c: revision 1.39
sys/arch/newsmips/apbus/if_sn.c: revision 1.40
sys/arch/next68k/dev/mb8795.c: revision 1.59
sys/arch/playstation2/dev/if_smap.c: revision 1.25
sys/arch/playstation2/dev/if_smap.c: revision 1.26
sys/arch/sun2/dev/if_ec.c: revision 1.28
sys/arch/sun3/dev/if_ie.c: revision 1.63
sys/arch/x68k/dev/if_ne_intio.c: revision 1.19
sys/arch/xen/xen/if_xennet_xenbus.c: revision 1.75
sys/arch/xen/xen/xennetback_xenbus.c: revision 1.63
sys/dev/bi/if_ni.c: revision 1.45
sys/dev/cadence/if_cemac.c: revision 1.12
sys/dev/ic/am7990.c: revision 1.78
sys/dev/ic/am79900.c: revision 1.27
sys/dev/ic/an.c: revision 1.67
sys/dev/ic/cs89x0.c: revision 1.40
sys/dev/ic/dm9000.c: revision 1.13
sys/dev/ic/dm9000.c: revision 1.14
sys/dev/ic/dp8390.c: revision 1.88
sys/dev/ic/elink3.c: revision 1.141
sys/dev/ic/elinkxl.c: revision 1.122
sys/dev/ic/hme.c: revision 1.98
sys/dev/ic/i82586.c: revision 1.77
sys/dev/ic/lance.c: revision 1.53
sys/dev/ic/mb86950.c: revision 1.27
sys/dev/ic/mb86960.c: revision 1.86
sys/dev/ic/mtd803.c: revision 1.34
sys/dev/ic/pdq_ifsubr.c: revision 1.59
sys/dev/ic/rrunner.c: revision 1.86
sys/dev/ic/seeq8005.c: revision 1.58
sys/dev/ic/sgec.c: revision 1.47
sys/dev/ic/smc90cx6.c: revision 1.72
sys/dev/ic/smc91cxx.c: revision 1.96
sys/dev/ic/tropic.c: revision 1.49
sys/dev/ic/wi.c: revision 1.245
sys/dev/isa/if_eg.c: revision 1.93
sys/dev/isa/if_el.c: revision 1.95
sys/dev/isa/if_iy.c: revision 1.101
sys/dev/ofw/ofnet.c: revision 1.58
sys/dev/pci/if_alc.c: revision 1.27
sys/dev/pci/if_de.c: revision 1.152
sys/dev/pci/if_fpa.c: revision 1.61
sys/dev/pci/if_jme.c: revision 1.34
sys/dev/pci/if_tl.c: revision 1.108
sys/dev/pci/if_vte.c: revision 1.19
sys/dev/pci/ixgbe/ixgbe.h: revision 1.50
sys/dev/pcmcia/if_cnw.c: revision 1.62
sys/dev/pcmcia/if_malo_pcmcia.c: revision 1.17
sys/dev/pcmcia/if_ray.c: revision 1.89
sys/dev/pcmcia/if_xi.c: revision 1.81
sys/dev/pcmcia/mhzc.c: revision 1.51
sys/dev/pcmcia/xirc.c: revision 1.34
sys/dev/qbus/if_de.c: revision 1.33
sys/dev/qbus/if_qe.c: revision 1.78
sys/dev/qbus/if_qt.c: revision 1.22
sys/dev/sbus/be.c: revision 1.87
sys/dev/sbus/qe.c: revision 1.68
sys/dev/scsipi/if_se.c: revision 1.96
sys/dev/usb/if_atu.c: revision 1.59
sys/net/if_l2tp.c: revision 1.28 via patch
sys/net/if_ppp.c: revision 1.160
It's not required to include net/bpfdesc.h. Remove it.
--
Simplify like other drivers. NULL check of ifp->if_bpf is done in
bpf_mtap(), so it's not required to do it here.
--
Remove duplicated inclusion of net/bpf.h.
--
Remove duplicated inclusion of net/bpf.h.
--
Simplify bpf_mtap() call. No functional change.
 1.21.2.2 08-Apr-2020  martin Merge changes from current as of 20200406
 1.21.2.1 10-Jun-2019  christos Sync with HEAD
 1.29.4.1 29-Feb-2020  ad Sync with head.
 1.35.10.1 02-Aug-2025  perseant Sync with HEAD
 1.4 12-Nov-2012  skrll C99 types
 1.3 23-Oct-2009  snj branches: 1.3.12; 1.3.22;
Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91emacreg.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91emacreg.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.3.22.1 20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.3.12.1 16-Jan-2013  yamt sync with (a bit old) head
 1.4 17-Sep-2022  thorpej Eliminate use of IFF_OACTIVE.
 1.3 23-Oct-2009  snj Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91emacvar.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91emacvar.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.4 04-Feb-2014  matt _setsoftintr is long dead. reap any leftovers from arm.
 1.3 23-Oct-2009  snj branches: 1.3.12; 1.3.22; 1.3.26;
Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91intr.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91intr.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.3.26.1 18-May-2014  rmind sync with head
 1.3.22.1 20-Aug-2014  tls Rebase to HEAD as of a few days ago.
 1.3.12.1 22-May-2014  yamt sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs. ("Protocol error: too many arguments")
 1.9 07-Aug-2021  thorpej Merge thorpej-cfargs2.
 1.8 24-Apr-2021  thorpej branches: 1.8.8;
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?).
 1.7 09-Apr-2018  jakllsch branches: 1.7.16;
Stop potential misuse of vendor names and USB vendor IDs in root hub
device and string descriptors.

Firstly: Few vendors have identical PCI-SIG vendor IDs and USB-IF vendor
IDs. As such, using the PCI vendor ID as a USB vendor ID may trample
on whomever is allocated that USB vendor ID.

Secondly: The vendor of the host controller hardware implementation has
little to nothing to do with our usbroothub implementation. Thus we
should not potentially associate any problems therewith to such third
party.

This change will result in root hubs being identified by USB Vendor ID
0x0000. Root hub vendor string will now be "NetBSD" (or, specifically:
ostype). Product ID (0x0000) and product strings remain unchanged.
 1.6 23-Apr-2016  skrll branches: 1.6.16;
Merge nick-nhusb

- API / infrastructure changes to support memory management changes.
- Memory management improvements and bug fixes.
- HCDs should now be MP safe
- conversion to KERNHIST based debug
- FS/LS isoc support on ehci(4).
- conversion to kmem(9)
- Some USB 3 support - mostly from Takahiro HAYASHI (t-hash).
- interrupt transfers now get proper DMA operations
- general bug fixes
- kern/48308
- uhub status notification improvements
- umass(4) probe fix (applied to HEAD already)
- ohci(4) short transfer fix
 1.5 04-Nov-2011  aymeric branches: 1.5.10; 1.5.26; 1.5.28; 1.5.32;
. fix attach code
. use CFATTACH_DECL_NEW
 1.4 01-Jul-2011  dyoung branches: 1.4.2;
#include <sys/bus.h> instead of <machine/bus.h>.
 1.3 14-Mar-2009  dsl 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.)
 1.2 03-Jul-2008  matt branches: 1.2.4; 1.2.6; 1.2.12;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91ohci.c was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.12.1 13-May-2009  jym Sync with HEAD.

Commit is split, to avoid a "too many arguments" protocol error.
 1.2.6.1 28-Apr-2009  skrll Sync with HEAD.
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91ohci.c was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.4.2.1 10-Nov-2011  yamt sync with head
 1.5.32.1 06-Sep-2016  skrll First pass at netbsd-7 updated with USB code from HEAD
 1.5.28.4 05-Dec-2014  skrll Use int for return type for [eou]chi_init and motg_init.
 1.5.28.3 05-Dec-2014  skrll KNF. Remove ( ) from return statements.
 1.5.28.2 03-Dec-2014  skrll The grand renaming of structure members.

No functional change.
 1.5.28.1 03-Dec-2014  skrll Trailing whitespace.
 1.5.26.1 05-Apr-2017  snj Pull up following revision(s) (requested by skrll in ticket #1395):
share/man/man4/axe.4: netbsd-7-nhusb
share/man/man4/axen.4: netbsd-7-nhusb
share/man/man4/cdce.4: netbsd-7-nhusb
share/man/man4/uaudio.4: netbsd-7-nhusb
share/man/man4/ucom.4: netbsd-7-nhusb
share/man/man4/uep.4: netbsd-7-nhusb
share/man/man4/urtw.4: netbsd-7-nhusb
share/man/man4/usb.4: netbsd-7-nhusb
share/man/man4/uyap.4: netbsd-7-nhusb
share/man/man4/xhci.4: netbsd-7-nhusb
share/man/man9/usbdi.9: netbsd-7-nhusb
sys/arch/amd64/conf/ALL: netbsd-7-nhusb
sys/arch/amd64/conf/GENERIC: netbsd-7-nhusb
sys/arch/amiga/dev/slhci_zbus.c: netbsd-7-nhusb
sys/arch/arm/allwinner/awin_otg.c: netbsd-7-nhusb
sys/arch/arm/allwinner/awin_usb.c: netbsd-7-nhusb
sys/arch/arm/amlogic/amlogic_dwctwo.c: netbsd-7-nhusb
sys/arch/arm/at91/at91ohci.c: netbsd-7-nhusb
sys/arch/arm/broadcom/bcm2835_dwctwo.c: netbsd-7-nhusb
sys/arch/arm/broadcom/bcm53xx_usb.c: netbsd-7-nhusb
sys/arch/arm/ep93xx/epohci.c: netbsd-7-nhusb
sys/arch/arm/gemini/obio_ehci.c: netbsd-7-nhusb
sys/arch/arm/imx/files.imx23: netbsd-7-nhusb
sys/arch/arm/imx/imxusb.c: netbsd-7-nhusb
sys/arch/arm/imx/imxusbreg.h: netbsd-7-nhusb
sys/arch/arm/omap/obio_ohci.c: netbsd-7-nhusb
sys/arch/arm/omap/omap3_ehci.c: netbsd-7-nhusb
sys/arch/arm/omap/omapl1x_ohci.c: netbsd-7-nhusb
sys/arch/arm/omap/tiotg.c: netbsd-7-nhusb
sys/arch/arm/s3c2xx0/ohci_s3c24x0.c: netbsd-7-nhusb
sys/arch/arm/samsung/exynos_usb.c: netbsd-7-nhusb
sys/arch/arm/xscale/pxa2x0_ohci.c: netbsd-7-nhusb
sys/arch/arm/zynq/zynq_usb.c: netbsd-7-nhusb
sys/arch/hpcarm/dev/nbp_slhci.c: netbsd-7-nhusb
sys/arch/hpcmips/dev/plumohci.c: netbsd-7-nhusb
sys/arch/i386/conf/ALL: netbsd-7-nhusb
sys/arch/i386/conf/GENERIC: netbsd-7-nhusb
sys/arch/i386/pci/gcscehci.c: netbsd-7-nhusb
sys/arch/luna68k/conf/GENERIC: netbsd-7-nhusb
sys/arch/mips/adm5120/dev/ahci.c: netbsd-7-nhusb
sys/arch/mips/adm5120/dev/ahcivar.h: netbsd-7-nhusb
sys/arch/mips/alchemy/dev/ohci_aubus.c: netbsd-7-nhusb
sys/arch/mips/atheros/dev/ehci_arbus.c: netbsd-7-nhusb
sys/arch/mips/atheros/dev/ohci_arbus.c: netbsd-7-nhusb
sys/arch/mips/conf/files.adm5120: netbsd-7-nhusb
sys/arch/mips/ralink/ralink_ehci.c: netbsd-7-nhusb
sys/arch/mips/ralink/ralink_ohci.c: netbsd-7-nhusb
sys/arch/mips/rmi/rmixl_ehci.c: netbsd-7-nhusb
sys/arch/mips/rmi/rmixl_ohci.c: netbsd-7-nhusb
sys/arch/playstation2/dev/ohci_sbus.c: netbsd-7-nhusb
sys/arch/powerpc/booke/dev/pq3ehci.c: netbsd-7-nhusb
sys/arch/powerpc/ibm4xx/dev/dwctwo_plb.c: netbsd-7-nhusb
sys/arch/x68k/dev/slhci_intio.c: netbsd-7-nhusb
sys/conf/files: netbsd-7-nhusb
sys/dev/cardbus/ehci_cardbus.c: netbsd-7-nhusb
sys/dev/cardbus/ohci_cardbus.c: netbsd-7-nhusb
sys/dev/cardbus/uhci_cardbus.c: netbsd-7-nhusb
sys/dev/ic/sl811hs.c: netbsd-7-nhusb
sys/dev/ic/sl811hsvar.h: netbsd-7-nhusb
sys/dev/isa/slhci_isa.c: netbsd-7-nhusb
sys/dev/marvell/ehci_mv.c: netbsd-7-nhusb
sys/dev/pci/ehci_pci.c: netbsd-7-nhusb
sys/dev/pci/ohci_pci.c: netbsd-7-nhusb
sys/dev/pci/uhci_pci.c: netbsd-7-nhusb
sys/dev/pci/xhci_pci.c: netbsd-7-nhusb
sys/dev/pcmcia/slhci_pcmcia.c: netbsd-7-nhusb
sys/dev/usb/Makefile.usbdevs: netbsd-7-nhusb
sys/dev/usb/TODO: netbsd-7-nhusb
sys/dev/usb/TODO.usbmp: netbsd-7-nhusb
sys/dev/usb/aubtfwl.c: netbsd-7-nhusb
sys/dev/usb/auvitek.c: netbsd-7-nhusb
sys/dev/usb/auvitek_audio.c: netbsd-7-nhusb
sys/dev/usb/auvitek_dtv.c: netbsd-7-nhusb
sys/dev/usb/auvitek_i2c.c: netbsd-7-nhusb
sys/dev/usb/auvitek_video.c: netbsd-7-nhusb
sys/dev/usb/auvitekvar.h: netbsd-7-nhusb
sys/dev/usb/ehci.c: netbsd-7-nhusb
sys/dev/usb/ehcireg.h: netbsd-7-nhusb
sys/dev/usb/ehcivar.h: netbsd-7-nhusb
sys/dev/usb/emdtv.c: netbsd-7-nhusb
sys/dev/usb/emdtv_dtv.c: netbsd-7-nhusb
sys/dev/usb/emdtv_ir.c: netbsd-7-nhusb
sys/dev/usb/emdtvvar.h: netbsd-7-nhusb
sys/dev/usb/ezload.c: netbsd-7-nhusb
sys/dev/usb/ezload.h: netbsd-7-nhusb
sys/dev/usb/files.usb: netbsd-7-nhusb
sys/dev/usb/hid.c: netbsd-7-nhusb
sys/dev/usb/hid.h: netbsd-7-nhusb
sys/dev/usb/if_athn_usb.c: netbsd-7-nhusb
sys/dev/usb/if_athn_usb.h: netbsd-7-nhusb
sys/dev/usb/if_atu.c: netbsd-7-nhusb
sys/dev/usb/if_atureg.h: netbsd-7-nhusb
sys/dev/usb/if_aue.c: netbsd-7-nhusb
sys/dev/usb/if_auereg.h: netbsd-7-nhusb
sys/dev/usb/if_axe.c: netbsd-7-nhusb
sys/dev/usb/if_axen.c: netbsd-7-nhusb
sys/dev/usb/if_axenreg.h: netbsd-7-nhusb
sys/dev/usb/if_axereg.h: netbsd-7-nhusb
sys/dev/usb/if_cdce.c: netbsd-7-nhusb
sys/dev/usb/if_cdcereg.h: netbsd-7-nhusb
sys/dev/usb/if_cue.c: netbsd-7-nhusb
sys/dev/usb/if_cuereg.h: netbsd-7-nhusb
sys/dev/usb/if_kue.c: netbsd-7-nhusb
sys/dev/usb/if_kuereg.h: netbsd-7-nhusb
sys/dev/usb/if_otus.c: netbsd-7-nhusb
sys/dev/usb/if_otusvar.h: netbsd-7-nhusb
sys/dev/usb/if_rum.c: netbsd-7-nhusb
sys/dev/usb/if_rumreg.h: netbsd-7-nhusb
sys/dev/usb/if_rumvar.h: netbsd-7-nhusb
sys/dev/usb/if_run.c: netbsd-7-nhusb
sys/dev/usb/if_runvar.h: netbsd-7-nhusb
sys/dev/usb/if_smsc.c: netbsd-7-nhusb
sys/dev/usb/if_smscreg.h: netbsd-7-nhusb
sys/dev/usb/if_smscvar.h: netbsd-7-nhusb
sys/dev/usb/if_udav.c: netbsd-7-nhusb
sys/dev/usb/if_udavreg.h: netbsd-7-nhusb
sys/dev/usb/if_upgt.c: netbsd-7-nhusb
sys/dev/usb/if_upgtvar.h: netbsd-7-nhusb
sys/dev/usb/if_upl.c: netbsd-7-nhusb
sys/dev/usb/if_ural.c: netbsd-7-nhusb
sys/dev/usb/if_uralreg.h: netbsd-7-nhusb
sys/dev/usb/if_uralvar.h: netbsd-7-nhusb
sys/dev/usb/if_url.c: netbsd-7-nhusb
sys/dev/usb/if_urlreg.h: netbsd-7-nhusb
sys/dev/usb/if_urndis.c: netbsd-7-nhusb
sys/dev/usb/if_urndisreg.h: netbsd-7-nhusb
sys/dev/usb/if_urtw.c: netbsd-7-nhusb
sys/dev/usb/if_urtwn.c: netbsd-7-nhusb
sys/dev/usb/if_urtwn_data.h: netbsd-7-nhusb
sys/dev/usb/if_urtwnreg.h: netbsd-7-nhusb
sys/dev/usb/if_urtwnvar.h: netbsd-7-nhusb
sys/dev/usb/if_urtwreg.h: netbsd-7-nhusb
sys/dev/usb/if_zyd.c: netbsd-7-nhusb
sys/dev/usb/if_zydreg.h: netbsd-7-nhusb
sys/dev/usb/irmce.c: netbsd-7-nhusb
sys/dev/usb/moscom.c: netbsd-7-nhusb
sys/dev/usb/motg.c: netbsd-7-nhusb
sys/dev/usb/motgvar.h: netbsd-7-nhusb
sys/dev/usb/ohci.c: netbsd-7-nhusb
sys/dev/usb/ohcireg.h: netbsd-7-nhusb
sys/dev/usb/ohcivar.h: netbsd-7-nhusb
sys/dev/usb/pseye.c: netbsd-7-nhusb
sys/dev/usb/slurm.c: netbsd-7-nhusb
sys/dev/usb/stuirda.c: netbsd-7-nhusb
sys/dev/usb/u3g.c: netbsd-7-nhusb
sys/dev/usb/uark.c: netbsd-7-nhusb
sys/dev/usb/uatp.c: netbsd-7-nhusb
sys/dev/usb/uaudio.c: netbsd-7-nhusb
sys/dev/usb/uberry.c: netbsd-7-nhusb
sys/dev/usb/ubsa.c: netbsd-7-nhusb
sys/dev/usb/ubsa_common.c: netbsd-7-nhusb
sys/dev/usb/ubsavar.h: netbsd-7-nhusb
sys/dev/usb/ubt.c: netbsd-7-nhusb
sys/dev/usb/uchcom.c: netbsd-7-nhusb
sys/dev/usb/ucom.c: netbsd-7-nhusb
sys/dev/usb/ucomvar.h: netbsd-7-nhusb
sys/dev/usb/ucycom.c: netbsd-7-nhusb
sys/dev/usb/udl.c: netbsd-7-nhusb
sys/dev/usb/udl.h: netbsd-7-nhusb
sys/dev/usb/udsbr.c: netbsd-7-nhusb
sys/dev/usb/udsir.c: netbsd-7-nhusb
sys/dev/usb/uep.c: netbsd-7-nhusb
sys/dev/usb/uftdi.c: netbsd-7-nhusb
sys/dev/usb/uftdireg.h: netbsd-7-nhusb
sys/dev/usb/ugen.c: netbsd-7-nhusb
sys/dev/usb/ugensa.c: netbsd-7-nhusb
sys/dev/usb/uhci.c: netbsd-7-nhusb
sys/dev/usb/uhcireg.h: netbsd-7-nhusb
sys/dev/usb/uhcivar.h: netbsd-7-nhusb
sys/dev/usb/uhid.c: netbsd-7-nhusb
sys/dev/usb/uhidev.c: netbsd-7-nhusb
sys/dev/usb/uhidev.h: netbsd-7-nhusb
sys/dev/usb/uhmodem.c: netbsd-7-nhusb
sys/dev/usb/uhso.c: netbsd-7-nhusb
sys/dev/usb/uhub.c: netbsd-7-nhusb
sys/dev/usb/uipad.c: netbsd-7-nhusb
sys/dev/usb/uipaq.c: netbsd-7-nhusb
sys/dev/usb/uirda.c: netbsd-7-nhusb
sys/dev/usb/uirdavar.h: netbsd-7-nhusb
sys/dev/usb/ukbd.c: netbsd-7-nhusb
sys/dev/usb/ukbdmap.c: netbsd-7-nhusb
sys/dev/usb/ukyopon.c: netbsd-7-nhusb
sys/dev/usb/ukyopon.h: netbsd-7-nhusb
sys/dev/usb/ulpt.c: netbsd-7-nhusb
sys/dev/usb/umass.c: netbsd-7-nhusb
sys/dev/usb/umass_isdata.c: netbsd-7-nhusb
sys/dev/usb/umass_isdata.h: netbsd-7-nhusb
sys/dev/usb/umass_quirks.c: netbsd-7-nhusb
sys/dev/usb/umass_quirks.h: netbsd-7-nhusb
sys/dev/usb/umass_scsipi.c: netbsd-7-nhusb
sys/dev/usb/umass_scsipi.h: netbsd-7-nhusb
sys/dev/usb/umassvar.h: netbsd-7-nhusb
sys/dev/usb/umcs.c: netbsd-7-nhusb
sys/dev/usb/umct.c: netbsd-7-nhusb
sys/dev/usb/umidi.c: netbsd-7-nhusb
sys/dev/usb/umidi_quirks.c: netbsd-7-nhusb
sys/dev/usb/umidi_quirks.h: netbsd-7-nhusb
sys/dev/usb/umodem.c: netbsd-7-nhusb
sys/dev/usb/umodem_common.c: netbsd-7-nhusb
sys/dev/usb/umodemvar.h: netbsd-7-nhusb
sys/dev/usb/ums.c: netbsd-7-nhusb
sys/dev/usb/uplcom.c: netbsd-7-nhusb
sys/dev/usb/urio.c: netbsd-7-nhusb
sys/dev/usb/urio.h: netbsd-7-nhusb
sys/dev/usb/usb.c: netbsd-7-nhusb
sys/dev/usb/usb.h: netbsd-7-nhusb
sys/dev/usb/usb_mem.c: netbsd-7-nhusb
sys/dev/usb/usb_mem.h: netbsd-7-nhusb
sys/dev/usb/usb_quirks.c: netbsd-7-nhusb
sys/dev/usb/usb_quirks.h: netbsd-7-nhusb
sys/dev/usb/usb_subr.c: netbsd-7-nhusb
sys/dev/usb/usbdevices.config: netbsd-7-nhusb
sys/dev/usb/usbdevs: netbsd-7-nhusb
sys/dev/usb/usbdevs.h: netbsd-7-nhusb
sys/dev/usb/usbdevs_data.h: netbsd-7-nhusb
sys/dev/usb/usbdi.c: netbsd-7-nhusb
sys/dev/usb/usbdi.h: netbsd-7-nhusb
sys/dev/usb/usbdi_util.c: netbsd-7-nhusb
sys/dev/usb/usbdi_util.h: netbsd-7-nhusb
sys/dev/usb/usbdivar.h: netbsd-7-nhusb
sys/dev/usb/usbhid.h: netbsd-7-nhusb
sys/dev/usb/usbhist.h: netbsd-7-nhusb
sys/dev/usb/usbroothub.c: netbsd-7-nhusb
sys/dev/usb/usbroothub.h: netbsd-7-nhusb
sys/dev/usb/usbroothub_subr.c: delete
sys/dev/usb/usbroothub_subr.h: delete
sys/dev/usb/uscanner.c: netbsd-7-nhusb
sys/dev/usb/uslsa.c: netbsd-7-nhusb
sys/dev/usb/usscanner.c: netbsd-7-nhusb
sys/dev/usb/ustir.c: netbsd-7-nhusb
sys/dev/usb/uthum.c: netbsd-7-nhusb
sys/dev/usb/utoppy.c: netbsd-7-nhusb
sys/dev/usb/uts.c: netbsd-7-nhusb
sys/dev/usb/uvideo.c: netbsd-7-nhusb
sys/dev/usb/uvisor.c: netbsd-7-nhusb
sys/dev/usb/uvscom.c: netbsd-7-nhusb
sys/dev/usb/uyap.c: netbsd-7-nhusb
sys/dev/usb/uyap_firmware.h: netbsd-7-nhusb
sys/dev/usb/uyurex.c: netbsd-7-nhusb
sys/dev/usb/x1input_rdesc.h: netbsd-7-nhusb
sys/dev/usb/xhci.c: netbsd-7-nhusb
sys/dev/usb/xhcireg.h: netbsd-7-nhusb
sys/dev/usb/xhcivar.h: netbsd-7-nhusb
sys/dev/usb/xinput_rdesc.h: netbsd-7-nhusb
sys/external/bsd/common/conf/files.linux: netbsd-7-nhusb
sys/external/bsd/common/include/linux/err.h: netbsd-7-nhusb
sys/external/bsd/common/include/linux/kernel.h: netbsd-7-nhusb
sys/external/bsd/common/include/linux/workqueue.h: netbsd-7-nhusb
sys/external/bsd/common/linux/linux_work.c: netbsd-7-nhusb
sys/external/bsd/drm2/dist/drm/radeon/atombios_encoders.c: netbsd-7-nhusb
sys/external/bsd/drm2/dist/drm/radeon/radeon_legacy_encoders.c: netbsd-7-nhusb
sys/external/bsd/drm2/drm/files.drmkms: netbsd-7-nhusb
sys/external/bsd/drm2/i915drm/files.i915drmkms: netbsd-7-nhusb
sys/external/bsd/drm2/include/linux/err.h: delete
sys/external/bsd/drm2/include/linux/workqueue.h: delete
sys/external/bsd/drm2/linux/files.drmkms_linux: netbsd-7-nhusb
sys/external/bsd/drm2/linux/linux_work.c: delete
sys/external/bsd/dwc2/dwc2.c: netbsd-7-nhusb
sys/external/bsd/dwc2/dwc2.h: netbsd-7-nhusb
sys/external/bsd/dwc2/dwc2var.h: netbsd-7-nhusb
sys/external/bsd/dwc2/dwctwo2netbsd: netbsd-7-nhusb
sys/external/bsd/dwc2/conf/files.dwc2: netbsd-7-nhusb
sys/external/bsd/dwc2/dist/dwc2_core.c: netbsd-7-nhusb
sys/external/bsd/dwc2/dist/dwc2_core.h: netbsd-7-nhusb
sys/external/bsd/dwc2/dist/dwc2_coreintr.c: netbsd-7-nhusb
sys/external/bsd/dwc2/dist/dwc2_hcd.c: netbsd-7-nhusb
sys/external/bsd/dwc2/dist/dwc2_hcd.h: netbsd-7-nhusb
sys/external/bsd/dwc2/dist/dwc2_hcdddma.c: netbsd-7-nhusb
sys/external/bsd/dwc2/dist/dwc2_hcdintr.c: netbsd-7-nhusb
sys/external/bsd/dwc2/dist/dwc2_hcdqueue.c: netbsd-7-nhusb
sys/external/bsd/dwc2/dist/dwc2_hw.h: netbsd-7-nhusb
sys/modules/drmkms_linux/Makefile: netbsd-7-nhusb
sys/modules/i915drmkms/Makefile: netbsd-7-nhusb
sys/rump/dev/lib/libugenhc/ugenhc.c: netbsd-7-nhusb
sys/rump/dev/lib/libusb/Makefile: netbsd-7-nhusb
sys/rump/dev/lib/libusb/USB.ioconf: netbsd-7-nhusb
sys/rump/dev/lib/libusb/usb_at_ugenhc.c: delete
sys/rump/dev/lib/libusb/opt/opt_usb.h: delete
sys/rump/dev/lib/libusb/opt/opt_usbverbose.h: delete
sys/sys/mbuf.h: netbsd-7-nhusb
usr.sbin/usbdevs/usbdevs.8: netbsd-7-nhusb
usr.sbin/usbdevs/usbdevs.c: netbsd-7-nhusb
Merge netbsd-7-nhusb:
- API / infrastructure changes to support memory management changes.
- Memory management improvements and bug fixes.
- HCDs should now be MP safe
- conversion to KERNHIST based debug
- FS/LS isoc support on ehci(4).
- conversion to kmem(9)
- Some USB 3 support - mostly from Takahiro HAYASHI (t-hash).
- interrupt transfers now get proper DMA operations
- general bug fixes
- kern/48308
- uhub status notification improvements
- umass(4) probe fix (applied to HEAD already)
- ohci(4) short transfer fix
- Change the SOFTINT level from NET to SERIAL for the USB softint handler.
This gives the callback a chance of running when another softint handler
at SOFTINT_NET has blocked holding a lock, e.g. softnet_lock and most of
the network stack.
- kern/49065 - ifconfig tun0 ... sequence locks up system / lockup:
softnet_lock held across usb xfr
- kern/50491 - unkillable wait in usbd_transfer while using usmsc0
on raspberry pi 2
- kern/51395 - USB Ethernet makes xhci hang
- Various improvements to slhci(4)
- Various improvements to dwc2(4)
 1.5.10.1 03-Dec-2017  jdolecek update from HEAD
 1.6.16.1 16-Apr-2018  pgoyette Sync with HEAD, resolve some conflicts
 1.7.16.1 21-Mar-2021  thorpej Give config_found() the same variadic arguments treatment as
config_search(). This commit only adds the CFARG_EOL sentinel
to the existing config_found() calls. Conversion of config_found_sm_loc()
and config_found_ia() call sites will be in subsequent commits.
 1.8.8.1 04-Aug-2021  thorpej Adapt to CFARGS().
 1.3 01-Jul-2011  dyoung #include <sys/bus.h> instead of <machine/bus.h>.
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91pdc.c was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91pdc.c was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.3 23-Oct-2009  snj Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91pdcreg.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91pdcreg.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.3 12-Nov-2012  skrll C99 types
 1.2 03-Jul-2008  matt branches: 1.2.4; 1.2.32; 1.2.42;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91pdcvar.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.42.1 20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.2.32.1 16-Jan-2013  yamt sync with (a bit old) head
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91pdcvar.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.8 07-Aug-2021  thorpej Merge thorpej-cfargs2.
 1.7 24-Apr-2021  thorpej branches: 1.7.8;
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?).
 1.6 12-Nov-2012  skrll branches: 1.6.52;
C99 types
 1.5 27-Oct-2012  chs split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.
 1.4 01-Jul-2011  dyoung branches: 1.4.2; 1.4.12;
#include <sys/bus.h> instead of <machine/bus.h>.
 1.3 19-Jun-2010  matt Misc fixes to get this to compile again.
 1.2 03-Jul-2008  matt branches: 1.2.4; 1.2.18; 1.2.20;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91pio.c was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Aug-2010  yamt sync with head.
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.20.1 03-Jul-2010  rmind sync with head
 1.2.18.1 17-Aug-2010  uebayasi Sync with HEAD.
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91pio.c was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.4.12.1 20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.4.2.2 16-Jan-2013  yamt sync with (a bit old) head
 1.4.2.1 30-Oct-2012  yamt sync with head
 1.6.52.6 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.
 1.6.52.5 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.
 1.6.52.4 04-Apr-2021  thorpej CFARG_SUBMATCH -> CFARG_SEARCH for the indirect configuration uses.
 1.6.52.3 03-Apr-2021  thorpej Give config_attach() the tagged variadic argument treatment and
mechanically convert all call sites.
 1.6.52.2 02-Apr-2021  thorpej config_found_ia() -> config_found() w/ CFARG_IATTR.
 1.6.52.1 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.
 1.7.8.1 04-Aug-2021  thorpej Adapt to CFARGS().
 1.3 06-May-2023  andvar few more typos in the word "register", mainly s/resister/register/.
In one comment I assume that it was meant to be pull-up resistor.
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91pioreg.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91pioreg.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.3 10-Aug-2025  andvar Fix few typos in comments.
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91piovar.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91piovar.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.8 24-Feb-2020  rin 0x%#x --> %#x for non-external codes.
Also, stop mixing up 0x%x and %#x in single files as far as possible.
 1.7 11-Apr-2019  kamil branches: 1.7.6;
Fix CVS Id usage
 1.6 12-Nov-2012  skrll branches: 1.6.38;
C99 types
 1.5 04-Nov-2011  aymeric branches: 1.5.10;
switch USB port on
 1.4 01-Jul-2011  dyoung branches: 1.4.2;
#include <sys/bus.h> instead of <machine/bus.h>.
 1.3 23-Oct-2009  snj Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91pmc.c was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91pmc.c was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.4.2.2 16-Jan-2013  yamt sync with (a bit old) head
 1.4.2.1 10-Nov-2011  yamt sync with head
 1.5.10.1 20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.6.38.2 08-Apr-2020  martin Merge changes from current as of 20200406
 1.6.38.1 10-Jun-2019  christos Sync with HEAD
 1.7.6.1 29-Feb-2020  ad Sync with head.
 1.3 04-Nov-2011  aymeric add preliminary support for AT91SAM9260
 1.2 03-Jul-2008  matt branches: 1.2.4; 1.2.32;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91pmcreg.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.32.1 10-Nov-2011  yamt sync with head
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91pmcreg.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.3 23-Oct-2009  snj Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91pmcvar.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91pmcvar.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.3 23-Oct-2009  snj Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91reg.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91reg.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.4 21-Apr-2023  skrll More devmap updates
 1.3 21-Apr-2023  skrll Trailing whitespace
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91rm9200bus.c was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91rm9200bus.c was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.4 30-Jul-2012  matt More -fno-common fixes
 1.3 23-Oct-2009  snj branches: 1.3.12;
Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91rm9200busvar.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91rm9200busvar.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.3.12.1 30-Oct-2012  yamt sync with head
 1.4 17-Sep-2021  andvar some love to double letters (in comments).
 1.3 23-Oct-2009  snj Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91rm9200reg.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91rm9200reg.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.2 21-Apr-2023  skrll Trailing whitespace
 1.1 04-Nov-2011  aymeric branches: 1.1.2;
add preliminary support for AT91SAM9260
 1.1.2.2 10-Nov-2011  yamt sync with head
 1.1.2.1 04-Nov-2011  yamt file at91sam9260bus.c was added on branch yamt-pagecache on 2011-11-10 14:31:39 +0000
 1.1 04-Nov-2011  aymeric branches: 1.1.2;
add preliminary support for AT91SAM9260
 1.1.2.2 10-Nov-2011  yamt sync with head
 1.1.2.1 04-Nov-2011  yamt file at91sam9260busvar.h was added on branch yamt-pagecache on 2011-11-10 14:31:39 +0000
 1.2 17-Sep-2021  andvar some love to double letters (in comments).
 1.1 04-Nov-2011  aymeric branches: 1.1.2;
add preliminary support for AT91SAM9260
 1.1.2.2 10-Nov-2011  yamt sync with head
 1.1.2.1 04-Nov-2011  yamt file at91sam9260reg.h was added on branch yamt-pagecache on 2011-11-10 14:31:39 +0000
 1.4 21-Apr-2023  skrll More devmap updates
 1.3 21-Apr-2023  skrll Trailing whitespace
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91sam9261bus.c was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91sam9261bus.c was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.3 23-Oct-2009  snj Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91sam9261busvar.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91sam9261busvar.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.4 17-Sep-2021  andvar some love to double letters (in comments).
 1.3 23-Oct-2009  snj Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91sam9261reg.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91sam9261reg.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:19 +0000
 1.8 10-Sep-2025  thorpej Encapsulate what's needed to attach a SPI bus into a spibus_attach()
inline.
 1.7 07-Aug-2021  thorpej branches: 1.7.2;
Merge thorpej-cfargs2.
 1.6 24-Apr-2021  thorpej branches: 1.6.2; 1.6.8;
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?).
 1.5 27-Dec-2019  msaitoh branches: 1.5.10;
s/transfered/transferred/
 1.4 13-Aug-2019  tnn ensure spibus_attach_args is zero'ed
 1.3 01-Jul-2011  dyoung branches: 1.3.54;
#include <sys/bus.h> instead of <machine/bus.h>.
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91spi.c was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91spi.c was added on branch wrstuden-revivesa on 2008-09-18 04:33:20 +0000
 1.3.54.2 13-Apr-2020  martin Mostly merge changes from HEAD upto 20200411
 1.3.54.1 08-Apr-2020  martin Merge changes from current as of 20200406
 1.5.10.1 23-Mar-2021  thorpej Convert config_found_ia() call sites where the device only carries
a single interface attribute to bare config_found() calls.
 1.6.8.1 04-Aug-2021  thorpej Adapt to CFARGS().
 1.6.2.1 18-May-2021  thorpej Pass the controller devhandle along to the "spi" instance.
 1.7.2.1 09-Aug-2021  thorpej Port over the changes from thorpej-i2c-spi-conf to thorpej-i2c-spi-conf2,
which is based on a newer HEAD revision.
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91spireg.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91spireg.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:20 +0000
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91spivar.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91spivar.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:20 +0000
 1.7 03-Jul-2020  maxv hardclock_ticks -> getticks()
 1.6 12-Nov-2012  skrll C99 types
 1.5 27-Oct-2012  chs split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.
 1.4 01-Jul-2011  dyoung branches: 1.4.2; 1.4.12;
#include <sys/bus.h> instead of <machine/bus.h>.
 1.3 27-Oct-2009  snj Drop 3rd and 4th clauses. Approved by all copyright holders
(Embedtronics Oy's owners, Jon Sevy, and joff).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91st.c was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91st.c was added on branch wrstuden-revivesa on 2008-09-18 04:33:20 +0000
 1.4.12.1 20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.4.2.2 16-Jan-2013  yamt sync with (a bit old) head
 1.4.2.1 30-Oct-2012  yamt sync with head
 1.4 12-Nov-2012  skrll C99 types
 1.3 23-Oct-2009  snj branches: 1.3.12; 1.3.22;
Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91streg.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91streg.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:20 +0000
 1.3.22.1 20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.3.12.1 16-Jan-2013  yamt sync with (a bit old) head
 1.3 23-Oct-2009  snj Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91tcreg.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91tcreg.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:20 +0000
 1.9 03-Jul-2020  maxv hardclock_ticks -> getticks()
 1.8 29-May-2020  rin For struct timecounter, use C99 initializers.
Compile tested. No functional changes intended.
 1.7 12-Nov-2012  skrll C99 types
 1.6 04-Nov-2011  aymeric branches: 1.6.10;
make compile by disabling yet more things
 1.5 01-Jul-2011  dyoung branches: 1.5.2;
#include <sys/bus.h> instead of <machine/bus.h>.
 1.4 19-Jun-2010  matt Misc fixes to get this to compile again.
 1.3 27-Oct-2009  snj branches: 1.3.2; 1.3.4;
Drop 3rd and 4th clauses. Approved by all copyright holders
(Embedtronics Oy's owners, Jon Sevy, and joff).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91tctmr.c was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.3 11-Aug-2010  yamt sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91tctmr.c was added on branch wrstuden-revivesa on 2008-09-18 04:33:20 +0000
 1.3.4.1 03-Jul-2010  rmind sync with head
 1.3.2.1 17-Aug-2010  uebayasi Sync with HEAD.
 1.5.2.2 16-Jan-2013  yamt sync with (a bit old) head
 1.5.2.1 10-Nov-2011  yamt sync with head
 1.6.10.1 20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.11 15-Sep-2025  thorpej Encapsulate what's needed to attach an I2C bus into a iicbus_attach()
inline.
 1.10 07-Aug-2021  thorpej Merge thorpej-cfargs2.
 1.9 24-Apr-2021  thorpej branches: 1.9.8;
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?).
 1.8 22-Dec-2019  thorpej branches: 1.8.10;
Cleanup i2c bus acquire / release, centralizing all of the logic into
iic_acquire_bus() / iic_release_bus(). "acquire" and "release" hooks
no longer need to be provided by back-end controller drivers (only if
they need special handling, e.g. powering on the i2c controller).
This results in the removal of a bunch of rendundant code from each
back-end controller driver.

Assert that we are not in hard interrupt context in iic_acquire_bus(),
iic_exec(), and iic_release_bus().
 1.7 14-Feb-2016  chs branches: 1.7.18;
zero the i2c_attach_args structure before filling it in.
fixes occasional crashes in iic_attach().
 1.6 27-Oct-2012  chs branches: 1.6.14;
split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.
 1.5 01-Jul-2011  dyoung branches: 1.5.2; 1.5.12;
#include <sys/bus.h> instead of <machine/bus.h>.
 1.4 14-Mar-2009  dsl 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.
 1.3 14-Mar-2009  dsl 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.)
 1.2 03-Jul-2008  matt branches: 1.2.4; 1.2.6; 1.2.12;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91twi.c was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.12.1 13-May-2009  jym Sync with HEAD.

Commit is split, to avoid a "too many arguments" protocol error.
 1.2.6.1 28-Apr-2009  skrll Sync with HEAD.
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91twi.c was added on branch wrstuden-revivesa on 2008-09-18 04:33:20 +0000
 1.5.12.2 03-Dec-2017  jdolecek update from HEAD
 1.5.12.1 20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.5.2.1 30-Oct-2012  yamt sync with head
 1.6.14.1 19-Mar-2016  skrll Sync with HEAD
 1.7.18.1 08-Apr-2020  martin Merge changes from current as of 20200406
 1.8.10.1 23-Mar-2021  thorpej Convert config_found_ia() call sites where the device only carries
a single interface attribute to bare config_found() calls.
 1.9.8.1 04-Aug-2021  thorpej Adapt to CFARGS().
 1.4 23-Sep-2024  andvar s/hodling/holding/ in comment.
 1.3 06-May-2023  andvar branches: 1.3.6;
s/Registre/Register/ in comment.
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91twireg.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91twireg.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:20 +0000
 1.3.6.1 02-Aug-2025  perseant Sync with HEAD
 1.3 22-Dec-2019  thorpej Cleanup i2c bus acquire / release, centralizing all of the logic into
iic_acquire_bus() / iic_release_bus(). "acquire" and "release" hooks
no longer need to be provided by back-end controller drivers (only if
they need special handling, e.g. powering on the i2c controller).
This results in the removal of a bunch of rendundant code from each
back-end controller driver.

Assert that we are not in hard interrupt context in iic_acquire_bus(),
iic_exec(), and iic_release_bus().
 1.2 03-Jul-2008  matt branches: 1.2.4; 1.2.86;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91twivar.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.86.1 08-Apr-2020  martin Merge changes from current as of 20200406
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91twivar.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:20 +0000
 1.14 26-Oct-2022  riastradh ddb/db_active.h: New home for extern db_active.

This can be included unconditionally, and db_active can then be
queried unconditionally; if DDB is not in the kernel, then db_active
is a constant zero. Reduces need for #include opt_ddb.h, #ifdef DDB.
 1.13 13-Apr-2015  riastradh branches: 1.13.2; 1.13.8;
MD rnd.h cleanups. Please let me know if I broke anything!
 1.12 15-Nov-2014  christos branches: 1.12.2;
centralize the call unit / dialout macros
 1.11 10-Aug-2014  tls Merge tls-earlyentropy branch into HEAD.
 1.10 25-Jul-2014  dholland Add d_discard to all struct cdevsw instances I could find.

All have been set to "nodiscard"; some should get a real implementation.
 1.9 16-Mar-2014  dholland branches: 1.9.2;
Change (mostly mechanically) every cdevsw/bdevsw I can find to use
designated initializers.

I have not built every extant kernel so I have probably broken at
least one build; however I've also found and fixed some wrong
cdevsw/bdevsw entries so even if so I think we come out ahead.
 1.8 12-Nov-2012  skrll branches: 1.8.2;
C99 types
 1.7 27-Oct-2012  chs split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.
 1.6 02-Feb-2012  tls branches: 1.6.6;
Entropy-pool implementation move and cleanup.

1) Move core entropy-pool code and source/sink/sample management code
to sys/kern from sys/dev.

2) Remove use of NRND as test for presence of entropy-pool code throughout
source tree.

3) Remove use of RND_ENABLED in device drivers as microoptimization to
avoid expensive operations on disabled entropy sources; make the
rnd_add calls do this directly so all callers benefit.

4) Fix bug in recent rnd_add_data()/rnd_add_uint32() changes that might
have lead to slight entropy overestimation for some sources.

5) Add new source types for environmental sensors, power sensors, VM
system events, and skew between clocks, with a sample implementation
for each.

ok releng to go in before the branch due to the difficulty of later
pullup (widespread #ifdef removal and moved files). Tested with release
builds on amd64 and evbarm and live testing on amd64.
 1.5 01-Jul-2011  dyoung branches: 1.5.2; 1.5.6;
#include <sys/bus.h> instead of <machine/bus.h>.
 1.4 24-Apr-2011  rmind Rename ttymalloc() to tty_alloc(), and ttyfree() to tty_free() for
consistency. Remove some unnecessary malloc.h inclusions as well.
 1.3 23-Oct-2009  snj branches: 1.3.4; 1.3.6;
Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91usart.c was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91usart.c was added on branch wrstuden-revivesa on 2008-09-18 04:33:20 +0000
 1.3.6.1 06-Jun-2011  jruoho Sync with HEAD.
 1.3.4.1 31-May-2011  rmind sync with head
 1.5.6.1 18-Feb-2012  mrg merge to -current.
 1.5.2.4 22-May-2014  yamt sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs. ("Protocol error: too many arguments")
 1.5.2.3 16-Jan-2013  yamt sync with (a bit old) head
 1.5.2.2 30-Oct-2012  yamt sync with head
 1.5.2.1 17-Apr-2012  yamt sync with head
 1.6.6.3 03-Dec-2017  jdolecek update from HEAD
 1.6.6.2 20-Aug-2014  tls Rebase to HEAD as of a few days ago.
 1.6.6.1 20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.8.2.1 18-May-2014  rmind sync with head
 1.9.2.2 10-Aug-2014  tls Rebase.
 1.9.2.1 07-Apr-2014  tls Be a little more clear and consistent about harvesting entropy from devices:

1) deprecate RND_FLAG_NO_ESTIMATE

2) define RND_FLAG_COLLECT_TIME, RND_FLAG_COLLECT_VALUE

3) define RND_FLAG_ESTIMATE_TIME, RND_FLAG_ESTIMATE_VALUE

4) define RND_FLAG_DEFAULT: RND_FLAG_COLLECT_TIME|
RND_FLAG_COLLECT_VALUE|RND_FLAG_ESTIMATE_TIME

5) Make entropy harvesting from environmental sensors a little more generic
and remove it from individual sensor drivers.

6) Remove individual open-coded delta-estimators for values from a few
places in the tree (uvm, environmental drivers).

7) 0 -> RND_FLAG_DEFAULT, actually gather entropy from various drivers
that had stubbed out code, other minor cleanups.
 1.12.2.1 06-Jun-2015  skrll Sync with HEAD
 1.13.8.1 27-Apr-2017  pgoyette Restore all work from the former pgoyette-localcount branch (which is
now abandoned doe to cvs merge botch).

The branch now builds, and installs via anita. There are still some
problems (cgd is non-functional and all atf tests time-out) but they
will get resolved soon.
 1.13.2.2 20-Jul-2016  pgoyette Redo previous. Rather than separately extracting the device_t, we can
rely on sc->sc_dev when we need to call device_release().
 1.13.2.1 19-Jul-2016  pgoyette Instead of repeatedly typing the conditional initialization of the
.d_localcount members in the various {b,c}devsw, define an initializer
macro and use it. This also removes the need for defining new symbols
for each 'struct localcount'.

As suggested by riastradh@
 1.4 13-Feb-2022  andvar s/Errorrs/Errors/
 1.3 23-Oct-2009  snj Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91usartreg.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91usartreg.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:20 +0000
 1.7 14-Apr-2015  riastradh Include <sys/rndsource.h> where it is actually used.

I had removed <sys/rnd.h> from files that didn't mention anything of
the rnd(9) API. But they included other files which assumed
<sys/rnd.h> had already been included.
 1.6 12-Nov-2012  skrll branches: 1.6.14;
C99 types
 1.5 02-Feb-2012  tls branches: 1.5.6;
Entropy-pool implementation move and cleanup.

1) Move core entropy-pool code and source/sink/sample management code
to sys/kern from sys/dev.

2) Remove use of NRND as test for presence of entropy-pool code throughout
source tree.

3) Remove use of RND_ENABLED in device drivers as microoptimization to
avoid expensive operations on disabled entropy sources; make the
rnd_add calls do this directly so all callers benefit.

4) Fix bug in recent rnd_add_data()/rnd_add_uint32() changes that might
have lead to slight entropy overestimation for some sources.

5) Add new source types for environmental sensors, power sensors, VM
system events, and skew between clocks, with a sample implementation
for each.

ok releng to go in before the branch due to the difficulty of later
pullup (widespread #ifdef removal and moved files). Tested with release
builds on amd64 and evbarm and live testing on amd64.
 1.4 19-Nov-2011  tls branches: 1.4.2;
First step of random number subsystem rework described in
<20111022023242.BA26F14A158@mail.netbsd.org>. This change includes
the following:

An initial cleanup and minor reorganization of the entropy pool
code in sys/dev/rnd.c and sys/dev/rndpool.c. Several bugs are
fixed. Some effort is made to accumulate entropy more quickly at
boot time.

A generic interface, "rndsink", is added, for stream generators to
request that they be re-keyed with good quality entropy from the pool
as soon as it is available.

The arc4random()/arc4randbytes() implementation in libkern is
adjusted to use the rndsink interface for rekeying, which helps
address the problem of low-quality keys at boot time.

An implementation of the FIPS 140-2 statistical tests for random
number generator quality is provided (libkern/rngtest.c). This
is based on Greg Rose's implementation from Qualcomm.

A new random stream generator, nist_ctr_drbg, is provided. It is
based on an implementation of the NIST SP800-90 CTR_DRBG by
Henric Jungheim. This generator users AES in a modified counter
mode to generate a backtracking-resistant random stream.

An abstraction layer, "cprng", is provided for in-kernel consumers
of randomness. The arc4random/arc4randbytes API is deprecated for
in-kernel use. It is replaced by "cprng_strong". The current
cprng_fast implementation wraps the existing arc4random
implementation. The current cprng_strong implementation wraps the
new CTR_DRBG implementation. Both interfaces are rekeyed from
the entropy pool automatically at intervals justifiable from best
current cryptographic practice.

In some quick tests, cprng_fast() is about the same speed as
the old arc4randbytes(), and cprng_strong() is about 20% faster
than rnd_extract_data(). Performance is expected to improve.

The AES code in src/crypto/rijndael is no longer an optional
kernel component, as it is required by cprng_strong, which is
not an optional kernel component.

The entropy pool output is subjected to the rngtest tests at
startup time; if it fails, the system will reboot. There is
approximately a 3/10000 chance of a false positive from these
tests. Entropy pool _input_ from hardware random numbers is
subjected to the rngtest tests at attach time, as well as the
FIPS continuous-output test, to detect bad or stuck hardware
RNGs; if any are detected, they are detached, but the system
continues to run.

A problem with rndctl(8) is fixed -- datastructures with
pointers in arrays are no longer passed to userspace (this
was not a security problem, but rather a major issue for
compat32). A new kernel will require a new rndctl.

The sysctl kern.arandom() and kern.urandom() nodes are hooked
up to the new generators, but the /dev/*random pseudodevices
are not, yet.

Manual pages for the new kernel interfaces are forthcoming.
 1.3 23-Oct-2009  snj branches: 1.3.12;
Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91usartvar.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91usartvar.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:20 +0000
 1.3.12.2 16-Jan-2013  yamt sync with (a bit old) head
 1.3.12.1 17-Apr-2012  yamt sync with head
 1.4.2.1 18-Feb-2012  mrg merge to -current.
 1.5.6.2 03-Dec-2017  jdolecek update from HEAD
 1.5.6.1 20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.6.14.1 06-Jun-2015  skrll Sync with HEAD
 1.3 23-Oct-2009  snj Drop 3rd and 4th clauses. Approved by all copyright holders:
joff and Embedtronics Oy's owners (Jukka Marin and Sami Kantoluoto).
 1.2 03-Jul-2008  matt branches: 1.2.4;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file at91var.h was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.2 11-Mar-2010  yamt sync with head
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file at91var.h was added on branch wrstuden-revivesa on 2008-09-18 04:33:20 +0000
 1.3 04-Nov-2011  aymeric add preliminary support for AT91SAM9260
 1.2 03-Jul-2008  matt branches: 1.2.4; 1.2.32;
Add AT91 support. (XXX need to finish timecounter support).
 1.1 10-Nov-2007  matt branches: 1.1.2; 1.1.16; 1.1.20; 1.1.22;
file files.at91 was initially added on branch matt-nb4-arm.
 1.1.22.1 03-Jul-2008  simonb Sync with head.
 1.1.20.1 04-May-2009  yamt sync with head.
 1.1.16.1 28-Sep-2008  mjf Sync with HEAD.
 1.1.2.1 10-Nov-2007  matt Add AT91 support from Sami Kantoluoto
Add TI OMAP2430 support from Marty Fouts @ Danger Inc
 1.2.32.1 10-Nov-2011  yamt sync with head
 1.2.4.2 18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.2.4.1 03-Jul-2008  wrstuden file files.at91 was added on branch wrstuden-revivesa on 2008-09-18 04:33:20 +0000

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