Fix CVS Id usage

branches: 1.11.18;
#include <sys/cpu.h> or <mips/cpuregs.h> as needed

branches: 1.10.12; 1.10.30;
Fix machine/ includes

#include <sys/bus.h> instead of <machine/bus.h>.

Merge forward from matt-nb5-mips64.

branches: 1.7.62; 1.7.66; 1.7.72; 1.7.74;
TRUE -> true, FALSE -> false

Replace the Mach-derived boolean_t type with the C99 bool type. A
future commit will replace use of TRUE and FALSE with true and false.

branches: 1.5.6; 1.5.12;
Add an option COM_REGMAP to allow com(4) to use an array of register indices.
This allows us to convert aucom to just another com attachment, and cleanup
some code in the com_arbus.c.

Additionally, we use a common com_cleanup routine rather than having a
zillion copies of it in the attachment points.

This has been tested on a number architectures, and it has been shown to get
close to comparable performance when COM_REGMAP is defined, and comparable
when it is not defined.

Approved by core@. Fixes PR port-evbmips/32362.

branches: 1.4.2; 1.4.6; 1.4.8;
The RTC and PCMCIA don't live at address 0 - restore the -1 address
locator from pre-split aubus.c. Should only affect autoconfig display.

branches: 1.3.2; 1.3.4; 1.3.6;
Use bus_space instead of direct access.
Fix a couple of inverted bits.
Added GPIO_BASE definition to aureg.h.

branches: 1.2.2;
GPIO support for all supported Alchemy parts.

Fix up incorrect ICU reporting, add processor specific switch tables for
IRQ routing and such.

Closes PR port-evbmips/31992.
Reviewed by simonb@, matt@, and izumi@

#include <sys/cpu.h> or <mips/cpuregs.h> as needed

branches: 1.10.12; 1.10.30;
Fix machine/ includes

#include <sys/bus.h> instead of <machine/bus.h>.

Merge forward from matt-nb5-mips64.

branches: 1.7.62; 1.7.66; 1.7.72; 1.7.74;
TRUE -> true, FALSE -> false

Replace the Mach-derived boolean_t type with the C99 bool type. A
future commit will replace use of TRUE and FALSE with true and false.

branches: 1.5.6; 1.5.12;
Add an option COM_REGMAP to allow com(4) to use an array of register indices.
This allows us to convert aucom to just another com attachment, and cleanup
some code in the com_arbus.c.

Additionally, we use a common com_cleanup routine rather than having a
zillion copies of it in the attachment points.

This has been tested on a number architectures, and it has been shown to get
close to comparable performance when COM_REGMAP is defined, and comparable
when it is not defined.

Approved by core@. Fixes PR port-evbmips/32362.

branches: 1.4.2; 1.4.6; 1.4.8;
The RTC and PCMCIA don't live at address 0 - restore the -1 address
locator from pre-split aubus.c. Should only affect autoconfig display.

branches: 1.3.2; 1.3.4; 1.3.6;
Use bus_space instead of direct access.
Fix a couple of inverted bits.
Added GPIO_BASE definition to aureg.h.

branches: 1.2.2;
GPIO support for all supported Alchemy parts.

Fix up incorrect ICU reporting, add processor specific switch tables for
IRQ routing and such.

Closes PR port-evbmips/31992.
Reviewed by simonb@, matt@, and izumi@

#include <sys/cpu.h> or <mips/cpuregs.h> as needed

branches: 1.11.12; 1.11.30;
Fix machine/ includes

#include <sys/bus.h> instead of <machine/bus.h>.

Merge forward from matt-nb5-mips64.

branches: 1.8.62; 1.8.66; 1.8.72; 1.8.74;
TRUE -> true, FALSE -> false

Replace the Mach-derived boolean_t type with the C99 bool type. A
future commit will replace use of TRUE and FALSE with true and false.

branches: 1.6.6; 1.6.12;
Add an option COM_REGMAP to allow com(4) to use an array of register indices.
This allows us to convert aucom to just another com attachment, and cleanup
some code in the com_arbus.c.

Additionally, we use a common com_cleanup routine rather than having a
zillion copies of it in the attachment points.

This has been tested on a number architectures, and it has been shown to get
close to comparable performance when COM_REGMAP is defined, and comparable
when it is not defined.

Approved by core@. Fixes PR port-evbmips/32362.

branches: 1.5.2; 1.5.6; 1.5.8;
The RTC and PCMCIA don't live at address 0 - restore the -1 address
locator from pre-split aubus.c. Should only affect autoconfig display.

branches: 1.4.2; 1.4.4; 1.4.6;
Use bus_space instead of direct access.
Fix a couple of inverted bits.
Added GPIO_BASE definition to aureg.h.

branches: 1.3.2;
GPIO support for all supported Alchemy parts.

Add Au1550 PCI support (Au1500 not yet, coming shortly).
Closes PR port-evbmips/32087.
Reviewed by simonb@ (Also, earlier, matt@, and tsutsui@.)

Fix up incorrect ICU reporting, add processor specific switch tables for
IRQ routing and such.

Closes PR port-evbmips/31992.
Reviewed by simonb@, matt@, and izumi@

#include <sys/cpu.h> or <mips/cpuregs.h> as needed

branches: 1.14.12; 1.14.30;
Fix machine/ includes

#include <sys/bus.h> instead of <machine/bus.h>.

Merge forward from matt-nb5-mips64.

branches: 1.11.62; 1.11.66; 1.11.72; 1.11.74;
TRUE -> true, FALSE -> false

Replace the Mach-derived boolean_t type with the C99 bool type. A
future commit will replace use of TRUE and FALSE with true and false.

branches: 1.9.6; 1.9.12;
Add an option COM_REGMAP to allow com(4) to use an array of register indices.
This allows us to convert aucom to just another com attachment, and cleanup
some code in the com_arbus.c.

Additionally, we use a common com_cleanup routine rather than having a
zillion copies of it in the attachment points.

This has been tested on a number architectures, and it has been shown to get
close to comparable performance when COM_REGMAP is defined, and comparable
when it is not defined.

Approved by core@. Fixes PR port-evbmips/32362.

branches: 1.8.2; 1.8.6; 1.8.8;
The RTC and PCMCIA don't live at address 0 - restore the -1 address
locator from pre-split aubus.c. Should only affect autoconfig display.

branches: 1.7.2; 1.7.4; 1.7.6;
Add Au1XXX PSC(Programable Serial Controller) bus-type driver.
PSC supports four protocols (AC97, I2S, SPI, SMBus).
These protocol drivers will be configured on the bus.

Initial commit of aupcmcia chip driver. It requires board specific logic
(coming in a the follow up commit for dbau1550 only), and is not yet complete.
It has serious problems, enough that it isn't yet usable, although the
functionality is all basically fleshed out. It is not enabled in any
default kernels at this point, so it should be benign. Hopefully the
bugs will soon be worked out and these caveats can be removed.

Back out accidental inclusion of aupcmcia. Doh!

Use bus_space instead of direct access.
Fix a couple of inverted bits.
Added GPIO_BASE definition to aureg.h.

branches: 1.3.2;
Add GPIO driver, and GPIO access functions for other subsystems.

Add Au1550 PCI support (Au1500 not yet, coming shortly).
Closes PR port-evbmips/32087.
Reviewed by simonb@ (Also, earlier, matt@, and tsutsui@.)

Fix up incorrect ICU reporting, add processor specific switch tables for
IRQ routing and such.

Closes PR port-evbmips/31992.
Reviewed by simonb@, matt@, and izumi@

#include <sys/cpu.h> or <mips/cpuregs.h> as needed

branches: 1.4.12; 1.4.30;
Fix machine/ includes

#include <sys/bus.h> instead of <machine/bus.h>.

Merge forward from matt-nb5-mips64.

branches: 1.1.2; 1.1.10; 1.1.16; 1.1.22; 1.1.98; 1.1.102; 1.1.108; 1.1.110;
Forgot to cvs add this file. Doh!

Closes PR port-evbmips/31992.

Adds generalized IRQ routing & reporting support based on different Alchemy
parts. Reviewed by matt@, simonb@, and izumi@

#include <sys/bus.h> instead of <machine/bus.h>.

Remove clause 3 and 4 from TNF licenses

branches: 1.4.68; 1.4.70; 1.4.72;
port-evbmips/31910
Forgot to include this file in the last commit... oops!

branches: 1.3.2; 1.3.4; 1.3.6;
merge ktrace-lwp.

branches: 1.2.16;
__KERNEL_RCSID()

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.12;
Add support for the the Alchemy Semiconductor Au1x00 series on-chip
devices. Currently the serial ports and ethernet MAC have working
drivers, and this has only been physically tested on the Au1000 CPU,
but these devices should work on the Au1100 and Au1500 CPUs too.

malloc(9) -> kmem(9)

branches: 1.15.8;
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.

branches: 1.14.48;
converting extent(9) from malloc(9) to kmem(9)
preceding kmem-vmem-pool-uvm patch

releng@ acknowledged

branches: 1.13.2; 1.13.6;
Fix machine/ includes

#include <sys/bus.h> instead of <machine/bus.h>.

Now that bus_handle_t is signed, avoid % operations on it. Convert all
% PAGE_SIZE to & PAGE_MASK. We don't expect to support non power of two
page sizes anytime soon ;-)
This makes PCI work again on my au1550.

branches: 1.10.2; 1.10.4;
Fix printf format problems and latent bugs made visible by new bus_*_t types.

Add a flags argument to pmap_kenter_pa(9).
Patch showed on tech-kern@ http://mail-index.netbsd.org/tech-kern/2009/11/04/msg006434.html
No objections.

branches: 1.8.18;
Remove clause 3 and 4 from TNF licenses

branches: 1.7.40; 1.7.42; 1.7.44;
TRUE -> true, FALSE -> false

Replace the Mach-derived boolean_t type with the C99 bool type. A
future commit will replace use of TRUE and FALSE with true and false.

branches: 1.5.2; 1.5.8; 1.5.14; 1.5.20;
Rework evbmips clock architecture to use common clock_subr.h routines.

Additionally, do not fail if no RTC is present, as not all boards have one.

Malta now uses the common dev/ic/mc146818.c code as much as possible, reducing
local "custom" code. These malta changes are *untested*, as I do not have
a Malta board to test with. If someone would please test them and get back to
me, I'd appreciate it!

Fix bus_space_read_stream*_2 accessors (pasto, proably) - this makes wi0
work on my meshcube.

branches: 1.3.2;
Fix prototype for au_himem_map().

branches: 1.2.2; 1.2.4;
Sprinkle wbflush(). Apparently code out there assumes implicit barriers.

branches: 1.1.2;
Reenable PCI on DBAU1500. May still be useful for PIO devices. Comments
in the config are left intact, though.
Add a PMAP-driven bus_space for access to upper memory, instead of using
wired entries.
Convert aupci to use said bus_space -- no measured performance impact.

malloc(9) -> kmem(9)

branches: 1.30.8;
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.

branches: 1.29.48;
+ Fix IPL_VM sr_bits for alchemy_ipl_sr_map. Alchemy peripherals connects to
MIPS_INT_MASK_[0-3].
+ Also add IPL_DDB.

branches: 1.28.2; 1.28.6;
Fix machine/ includes

#include <sys/bus.h> instead of <machine/bus.h>.

Merge forward from matt-nb5-mips64.

branches: 1.25.4; 1.25.6; 1.25.8;
Per discussion with <simonb> also block the interrupts from icu 1 for
splvm(), even if we don't currently support any handlers for gpio
interrupts.

Block MIPS_INT_MASK_1 for splvm() too - if_aumac.c establishes it's
interrupt handler at icu 0 req 1, which needs to be blocked by splvm().

branches: 1.23.18;
Remove clause 3 and 4 from TNF licenses

branches: 1.22.12; 1.22.14; 1.22.16;
Make it compile.

branches: 1.21.10; 1.21.22; 1.21.24; 1.21.30; 1.21.32;
merge yamt-splraiseipl branch.

- finish implementing splraiseipl (and makeiplcookie).
http://mail-index.NetBSD.org/tech-kern/2006/07/01/0000.html
- complete workqueue(9) and fix its ipl problem, which is reported
to cause audio skipping.
- fix netbt (at least compilation problems) for some ports.
- fix PR/33218.

Fix incorrect code which ignored "req", causing all interrupts to get
assigned to request 0. With this change, ethernet interrupts are assigned
to req1, seperately from req0. This potentially gives better performance
by shortening the list of handlers walked somewhat.

branches: 1.19.8; 1.19.10;
Clean up some code and ensure that the ICU registers start out with sane
values.

branches: 1.18.2; 1.18.4; 1.18.6;
Sprinkle wbflush() to ensure register writes are pushed thru the cpu write
buffer.
Clear and set WAKEUP properly.

Fix bogus gcc uninitialised warnings - they're not needed for one of the
variables.
Update a comment to match changed code.

Fix error calling interrupt too many times (found with vmstat -e).
Replace "&&" with "&" when doing bit mask operations. Doh!

Add au_intr_enable() and au_intr_disable() API to allow for split interrupts
(e.g. PCMCIA leaves GPIO interrupt masked and reenables them soft interrupt.)
Add checks for masked interrupts before calling the handler.
When removing last interrupt handler, mask off interrupts completely using
MASK_CLEAR and WAKEUP_CLEAR. Tested on dbau1500.

au_icu.c is in mips/ and should not depend on evbmips intr handler struct.
convert various u_int32_t to preferred uint32_t.

Fix up incorrect ICU reporting, add processor specific switch tables for
IRQ routing and such.

Closes PR port-evbmips/31992.
Reviewed by simonb@, matt@, and izumi@

branches: 1.12.2; 1.12.4; 1.12.6;
Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

merge ktrace-lwp.

branches: 1.10.2;
Rename local variable `cpu_intr' to `cpu_int' to avoid shadowing.

Uppercase CPU, plural is CPUs.

More bogus uninitialised warnings.

__KERNEL_RCSID()

branches: 1.6.2;
Use common mips/softintr.c for softintr(9) on evbmips.
Ok'ed by simonb.

support active low, level triggered interrupts, needed for ohci front end.

Remove reference to mips_int5_evcnt from here; that is port-specific,
not arch-specific.

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

branches: 1.2.2; 1.2.4; 1.2.6;
Remove some debug code accidently left in.

Add support for the the Alchemy Semiconductor Au1x00 series on-chip
devices. Currently the serial ports and ethernet MAC have working
drivers, and this has only been physically tested on the Au1000 CPU,
but these devices should work on the Au1100 and Au1500 CPUs too.

#include <sys/bus.h> instead of <machine/bus.h>.

Merge forward from matt-nb5-mips64.

branches: 1.9.16; 1.9.20; 1.9.26; 1.9.28;
Remove all initialization of obsolete ci_divisor_recip in
mips struct cpu_info and related macroes.
The member was prepared for a hack in MD microtime(9) implementation
but it has been superseded by MI timecounter(9).

branches: 1.8.6; 1.8.8; 1.8.10; 1.8.12;
Fix typo in macro name and comments.

branches: 1.7.2; 1.7.8;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.6.10;
Now that curcpu() is defined in terms of curlwp() for mips, we need to
include <sys/lwp.h> where curcpu() is used.

branches: 1.5.12; 1.5.14; 1.5.20;
Remove pointless dependency upon evbmips/clockvar.h.

branches: 1.4.4; 1.4.8;
Include <sys/systm.h> if we use printf(), instead of relying on some
other random header pulling <sys/systm.h> in for us.

branches: 1.3.4; 1.3.10;
Remove some errant semicolons.

branches: 1.2.8; 1.2.10;
__KERNEL_RCSID()

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.12;
Add support for the the Alchemy Semiconductor Au1x00 series on-chip
devices. Currently the serial ports and ethernet MAC have working
drivers, and this has only been physically tested on the Au1000 CPU,
but these devices should work on the Au1100 and Au1500 CPUs too.

malloc(9) -> kmem(9)

branches: 1.10.8;
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.

branches: 1.9.48;
converting extent(9) from malloc(9) to kmem(9)
preceding kmem-vmem-pool-uvm patch

releng@ acknowledged

branches: 1.8.2; 1.8.6;
Fix machine/ includes

#include <sys/bus.h> instead of <machine/bus.h>.

Remove clause 3 and 4 from TNF licenses

branches: 1.5.40; 1.5.42; 1.5.44;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

Replace the Mach-derived boolean_t type with the C99 bool type. A
future commit will replace use of TRUE and FALSE with true and false.

branches: 1.3.4; 1.3.10; 1.3.16; 1.3.22;
Update a comment.

branches: 1.2.2; 1.2.4; 1.2.6;
Remove useless extra assignment.

Add a bus_space that makes use of wired TLB entries, as required for PCI,
PCMCIA, and perhaps other devices on Alchemy parts.

Closes PR port-evbmips/32298
Reviewed as part of PCI changes by matt@, izumi@, and probably also simonb@.

This implementation has been tested seperately with my PCI code. This commit
does not add the necessary changes to configuration files to include this in
current configurations yet, as I intend to add that when I add the
multi-platform configuration support for evbmips/alchemy (which will be
required for PCI anyway.)

Remove unnecessary include of <sys/malloc.h>.

Trailing whitespace

Merge thorpej-cfargs2.

branches: 1.24.8;
Merge thorpej-cfargs branch:

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

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

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

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

...and a sentinel value CFARG_EOL.

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

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

branches: 1.23.68;
Fix machine/ includes

#include <sys/bus.h> instead of <machine/bus.h>.

Merge forward from matt-nb5-mips64.

branches: 1.20.4; 1.20.6; 1.20.8;
Fix printf format problems and latent bugs made visible by new bus_*_t types.

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.)

branches: 1.18.72; 1.18.80; 1.18.86; 1.18.90;
Fix up incorrect ICU reporting, add processor specific switch tables for
IRQ routing and such.

Closes PR port-evbmips/31992.
Reviewed by simonb@, matt@, and izumi@

branches: 1.17.2; 1.17.4; 1.17.6;
Add basic support for Alchemy Au1550 processor (CPU and devices).
Patch contributed by Garrett D'Amore in PR port-evbmips/32030.

merge ktrace-lwp.

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

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

branches: 1.13.2;
kill questionable uses of config(8) generated xxxlocnames[]
locator information does belong elsewhere and definitely shouldn't
be in the global namespace

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

The Au1500 doesn't have an i2s interface.

Uppercase CPU, plural is CPUs.

__KERNEL_RCSID()

branches: 1.8.2;
de-slob-ify. (I'm a slob)

allocate an aubus dma tag.

Use aprint_normal() for cfprint routines.

Fix a typo in the on-board device selection machinery (which I thought
I'd committed long ago).

Use CFATTACH_DECL().

Declare all cfattach structures const.

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

branches: 1.1.2; 1.1.4; 1.1.6;
Add support for the the Alchemy Semiconductor Au1x00 series on-chip
devices. Currently the serial ports and ethernet MAC have working
drivers, and this has only been physically tested on the Au1000 CPU,
but these devices should work on the Au1100 and Au1500 CPUs too.

branches: 1.1.2; 1.1.10; 1.1.16; 1.1.22;
Split out peripheral register defines from aureg.h. As discussed with
simonb@.

split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.

branches: 1.8.2; 1.8.12;
CFATTACH_DECL(..., sizeof(struct device), -> CFATTACH_DECL_NEW(..., 0
struct device * -> device_t
struct cfdata * -> cfdata_t
use bool when appropriate
some constification

branches: 1.7.100; 1.7.110;
merge ktrace-lwp.

__KERNEL_RCSID()

branches: 1.5.6;
Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

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

branches: 1.1.2; 1.1.4; 1.1.6;
Add support for the the Alchemy Semiconductor Au1x00 series on-chip
devices. Currently the serial ports and ethernet MAC have working
drivers, and this has only been physically tested on the Au1000 CPU,
but these devices should work on the Au1100 and Au1500 CPUs too.

Add an option COM_REGMAP to allow com(4) to use an array of register indices.
This allows us to convert aucom to just another com attachment, and cleanup
some code in the com_arbus.c.

Additionally, we use a common com_cleanup routine rather than having a
zillion copies of it in the attachment points.

This has been tested on a number architectures, and it has been shown to get
close to comparable performance when COM_REGMAP is defined, and comparable
when it is not defined.

Approved by core@. Fixes PR port-evbmips/32362.

branches: 1.21.4;
integrate kauth.

Use device_unit().

Use device_unit().CVS: ----------------------------------------------------------------------

branches: 1.18.2; 1.18.4; 1.18.6;
Use device_is_active() rather than testing dv_flags for DVF_ACTIVE
directly.

branches: 1.17.2; 1.17.4; 1.17.6;
remove the COM_MPLOCK option. always include the spinlock in the softc
and always call the simple_* locking functions. the locking functions
are compiled out if they are not needed anyway, so a separate option
for this doesn't gain anything.

this also fixes the serial console on my alpha ES40 (which doesn't make much
sense since the com driver should still be under the big lock on alpha,
but whatever).

merge ktrace-lwp.

Change the driver open function's conditional for overriding exclusive tty
use from checking the proc's uid to suser(9), and account for the use of
privileges. Noted by David Holland in PR kern/31126.

branches: 1.14.12;
Rename the COM16650 option to COM_16650, for consistency with other
com variant options.

Use the COM_AU1x00 option for Au1x00 feature support.

Sync with com.c, rev 1.222.

Sync with dev/ic/com.c rev 1.221.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.9.2;
Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.

Use the com softc enabled/disable hooks instead of directly frobbing
Au1x00 registers in com_attach_subr(). Suggested by Jason Thorpe and
tested on both console and extra serial ports.

Fix 'struct lwp *' lossage.

Conditionalize usage of the COM_HW_HAYESP constant on COM_HAYESP.
Add a dummy type argument to the local (au)comcnattach to match the change
in the prototype of the "real" comcnattach.

Reviewed and tested by simonb.

Make sure to include opt_foo.h if a defflag option FOO is used.

Initialize the two new members of "struct console" to NULL so that
this file compiles again.

merge kqueue branch into -current

kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals

kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)

based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe

Merge the gehenna-devsw branch into the trunk.

This merge changes the device switch tables from static array to
dynamically generated by config(8).

- All device switches is defined as a constant structure in device drivers.

- The new grammer ``device-major'' is introduced to ``files''.

device-major <prefix> char <num> [block <num>] [<rules>]

- All device major numbers must be listed up in port dependent majors.<arch>
by using this grammer.

- Added the new naming convention.
The name of the device switch must be <prefix>_[bc]devsw for auto-generation
of device switch tables.

- The backward compatibility of loading block/character device
switch by LKM framework is broken. This is necessary to convert
from block/character device major to device name in runtime and vice versa.

- The restriction to assign device major by LKM is completely removed.
We don't need to reserve LKM entries for dynamic loading of device switch.

- In compile time, device major numbers list is packed into the kernel and
the LKM framework will refer it to assign device major number dynamically.

branches: 1.1.2; 1.1.4; 1.1.6;
Add a slightly modified dev/ic/com.c that supports the Alchemy
Semiconductor Au1x00 series on-chip UARTs. Will be merged with
the original com.c driver once a few issues are tidied up. Main
differences from a standard 16550 UART are:
- separate rxdata and txdata registers
- single 16-bit register for the clock divisor
- "enable uart" register

Add an option COM_REGMAP to allow com(4) to use an array of register indices.
This allows us to convert aucom to just another com attachment, and cleanup
some code in the com_arbus.c.

Additionally, we use a common com_cleanup routine rather than having a
zillion copies of it in the attachment points.

This has been tested on a number architectures, and it has been shown to get
close to comparable performance when COM_REGMAP is defined, and comparable
when it is not defined.

Approved by core@. Fixes PR port-evbmips/32362.

branches: 1.13.2; 1.13.10;
Remove not-useful UART references from aureg.h, duplicates consolidated into
aucomreg.h. First part of aureg.h cleanup requested by simonb@.

branches: 1.12.2; 1.12.4; 1.12.6;
merge ktrace-lwp.

Include <sys/systm.h>; needed for printf() and strcmp() in the
non-DEBUG case.

branches: 1.10.16;
Use UART_SIZE instead of a (redefined) COM_NPORTS.

Add a "COM_AU1x00" option, similar to COM_PXA2X0, for enabling Au1x00
features in the "com" driver.

__KERNEL_RCSID()

branches: 1.7.2;
Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.

Use the com softc enabled/disable hooks instead of directly frobbing
Au1x00 registers in com_attach_subr(). Suggested by Jason Thorpe and
tested on both console and extra serial ports.

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

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

branches: 1.1.2; 1.1.4; 1.1.6;
Add support for the the Alchemy Semiconductor Au1x00 series on-chip
devices. Currently the serial ports and ethernet MAC have working
drivers, and this has only been physically tested on the Au1000 CPU,
but these devices should work on the Au1100 and Au1500 CPUs too.

Add an option COM_REGMAP to allow com(4) to use an array of register indices.
This allows us to convert aucom to just another com attachment, and cleanup
some code in the com_arbus.c.

Additionally, we use a common com_cleanup routine rather than having a
zillion copies of it in the attachment points.

This has been tested on a number architectures, and it has been shown to get
close to comparable performance when COM_REGMAP is defined, and comparable
when it is not defined.

Approved by core@. Fixes PR port-evbmips/32362.

branches: 1.2.2; 1.2.10;
Remove not-useful UART references from aureg.h, duplicates consolidated into
aucomreg.h. First part of aureg.h cleanup requested by simonb@.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.28; 1.1.40; 1.1.42; 1.1.44;
Add a slightly modified dev/ic/com.c that supports the Alchemy
Semiconductor Au1x00 series on-chip UARTs. Will be merged with
the original com.c driver once a few issues are tidied up. Main
differences from a standard 16550 UART are:
- separate rxdata and txdata registers
- single 16-bit register for the clock divisor
- "enable uart" register

remove the COM_MPLOCK option. always include the spinlock in the softc
and always call the simple_* locking functions. the locking functions
are compiled out if they are not needed anyway, so a separate option
for this doesn't gain anything.

this also fixes the serial console on my alpha ES40 (which doesn't make much
sense since the com driver should still be under the big lock on alpha,
but whatever).

merge ktrace-lwp.

branches: 1.2.12;
Rename the COM16650 option to COM_16650, for consistency with other
com variant options.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.12;
Add a slightly modified dev/ic/com.c that supports the Alchemy
Semiconductor Au1x00 series on-chip UARTs. Will be merged with
the original com.c driver once a few issues are tidied up. Main
differences from a standard 16550 UART are:
- separate rxdata and txdata registers
- single 16-bit register for the clock divisor
- "enable uart" register

Merge thorpej-cfargs2.

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?).

branches: 1.8.32;
Cleanup includes.

branches: 1.7.6; 1.7.24;
Use device_t instead of 'struct device *'.
Call aprint_* in auto-config time.

branches: 1.6.2; 1.6.6;
#include <sys/bus.h> instead of <machine/bus.h>.

branches: 1.5.2; 1.5.8; 1.5.14;
Remove crufty (and unused) augpio_found check. Noted by Kiyohara Takashi.

Add macros so that GPIOs can be accessed directly without having to use
ioctls or the GPIO framework. Useful for some subsystems such as PCMCIA, that
may also use GPIOs. Requested by Kiyohara Takashi.

branches: 1.3.2; 1.3.4; 1.3.6;
Use bus_space instead of direct access.
Fix a couple of inverted bits.
Added GPIO_BASE definition to aureg.h.

branches: 1.2.2;
Do not reset GPIO2 block -- causes PCI reset.

Add GPIO driver, and GPIO access functions for other subsystems.

branches: 1.3.8; 1.3.14; 1.3.20;
Use bus_space instead of direct access.
Fix a couple of inverted bits.
Added GPIO_BASE definition to aureg.h.

branches: 1.2.2;
Do not reset GPIO2 block -- causes PCI reset.

Add GPIO driver, and GPIO access functions for other subsystems.

branches: 1.3.2; 1.3.4; 1.3.6; 1.3.12; 1.3.18;
Add macros so that GPIOs can be accessed directly without having to use
ioctls or the GPIO framework. Useful for some subsystems such as PCMCIA, that
may also use GPIOs. Requested by Kiyohara Takashi.

branches: 1.2.2;
Use bus_space instead of direct access.
Fix a couple of inverted bits.
Added GPIO_BASE definition to aureg.h.

branches: 1.1.2;
Add GPIO driver, and GPIO access functions for other subsystems.

Remove unnecessary include of <sys/malloc.h>.

Trailing whitespace

Merge thorpej-cfargs2.

branches: 1.19.8;
Merge thorpej-cfargs branch:

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

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

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

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

...and a sentinel value CFARG_EOL.

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

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

branches: 1.18.4;
Overhaul the interface to pci_configure_bus():
- Don't expose how PCI bus configuration resource management is implemented.
Provide a new resource provider API:

==> pciconf_resource_init() -- Initialize a PCI configuration resources
container.
==> pciconf_resource_add() -- Add a PCI configuration resource to the
container (I/O, MEM, or prefetchable MEM). Multiple resources of
each type may be added.
==> pciconf_resource_fini() -- Tear down the PCI configurtation resources
container once the bus has been configured.

This is much easier to use than the previous method of providing an
extent map for each kind of resource, and works better for e.g. ACPI
platforms that provide potentially multiple PCI resources in tables
provided by firmware.

- Re-implement PCI configuration resource management using vmem arenas,
rather than extent maps.

PCI Extended Configuration stuff written by nonaka@:
- Add PCI Extended Configuration Space support into x86.
- Check register offset of pci_conf_read() in MD part. It returns (pcireg_t)-1
if it isn't accessible.
- Decode Extended Capability in PCI Extended Configuration Space.
Currently the following extended capabilities are decoded:
- Advanced Error Reporting
- Virtual Channel
- Device Serial Number
- Power Budgeting
- Root Complex Link Declaration
- Root Complex Event Collector Association
- Access Control Services
- Alternative Routing-ID Interpretation
- Address Translation Services
- Single Root IO Virtualization
- Page Request
- TPH Requester
- Latency Tolerance Reporting
- Secondary PCI Express
- Process Address Space ID
- LN Requester
- L1 PM Substates
The following extended capabilities are not decoded yet:
- Root Complex Internal Link Control
- Multi-Function Virtual Channel
- RCRB Header
- Vendor Unique
- Configuration Access Correction
- Multiple Root IO Virtualization
- Multicast
- Resizable BAR
- Dynamic Power Allocation
- Protocol Multiplexing
- Downstream Port Containment
- Precision Time Management
- M-PCIe
- Function Reading Status Queueing
- Readiness Time Reporting
- Designated Vendor-Specific

Cleanup includes.

branches: 1.15.6;
make pci_intr_string and eisa_intr_string take a buffer and a length
instead of relying in local static storage.

kill sprintf

branches: 1.13.6; 1.13.10;
converting extent(9) from malloc(9) to kmem(9)
preceding kmem-vmem-pool-uvm patch

releng@ acknowledged

Use device_t instead of 'struct device *'.
Call aprint_* in auto-config time.

branches: 1.11.2; 1.11.6;
#include <sys/bus.h> instead of <machine/bus.h>.

PCI_FLAGS_IO_ENABLED and PCI_FLAGS_MEM_ENABLED changed their functional
role in NetBSD (drivers are no longer supposed to write these to
pa_flags) without changing name. Correct that.

Rename PCI_FLAGS_IO_ENABLED to PCI_FLAGS_IO_OKAY and
PCI_FLAGS_MEM_ENABLED to PCI_FLAGS_MEM_OKAY, thus making their names
consistent with the other PCI flags and poisoning 3rd-party driver
sources that use the flags in the old bad way.

This patch produces no binary changes in this set of PCI kernels when
they are compiled w/o 'options DIAGNOSTIC' and w/ -V MKREPRO=yes:

algor P4032 P5064 P6032
alpha GENERIC
amd64 GENERIC XEN3_DOM0
arc GENERIC
atari HADES MILAN-PCIIDE
bebox GENERIC
cats GENERIC
cobalt GENERIC
evbarm-el ADI_BRH ARMADILLO9 CP3100 GEMINI GEMINI_MASTER GEMINI_SLAVE
evbarm-el GUMSTIX HDL_G IMX31LITE INTEGRATOR IQ31244 IQ80310 IQ80321
evbarm-el IXDP425 IXM1200 KUROBOX_PRO
evbarm-el LUBBOCK MARVELL_NAS NAPPI NSLU2 SHEEVAPLUG SMDK2800 TEAMASA_NPWR
evbarm-el TEAMASA_NPWR_FC TS7200 TWINTAIL ZAO425
evbmips-el AP30 DBAU1500 DBAU1550 MALTA MERAKI MTX-1 OMSAL400 RB153 WGT624V3
evbmips64-el XLSATX
evbppc EV64260 MPC8536DS MPC8548CDS OPENBLOCKS200 OPENBLOCKS266
evbppc OPENBLOCKS266_OPT P2020RDB PMPPC RB800 WALNUT
hp700 GENERIC
i386 ALL XEN3_DOM0 XEN3_DOMU
ibmnws GENERIC
iyonix GENERIC
landisk GENERIC
macppc GENERIC
mvmeppc GENERIC
netwinder GENERIC
ofppc GENERIC
prep GENERIC
sandpoint GENERIC
sbmips-el GENERIC
sgimips GENERIC32_IP2x GENERIC32_IP3x
sparc GENERIC_SUN4U KRUPS
sparc64 GENERIC

Merge forward from matt-nb5-mips64.

branches: 1.8.62; 1.8.66; 1.8.72; 1.8.74;
TRUE -> true, FALSE -> false

Replace the Mach-derived boolean_t type with the C99 bool type. A
future commit will replace use of TRUE and FALSE with true and false.

branches: 1.6.6;
Fix a white-space nit.

branches: 1.5.2; 1.5.8; 1.5.12; 1.5.14; 1.5.18; 1.5.20;
Masking for mstart was still *not* right. This time I'm fairly sure I got
it right -- OMSAL400 and MTX-1 boards should have functional PCI now.

Incorrect pci_mbar/pci_mwmask related calculation was causing devices to be
inaccessible on some platforms.

branches: 1.3.2;
Reenable PCI on DBAU1500. May still be useful for PIO devices. Comments
in the config are left intact, though.
Add a PMAP-driven bus_space for access to upper memory, instead of using
wired entries.
Convert aupci to use said bus_space -- no measured performance impact.

If we get a master abort, reset the SPL before returning.

Add Au1550 PCI support (Au1500 not yet, coming shortly).
Closes PR port-evbmips/32087.
Reviewed by simonb@ (Also, earlier, matt@, and tsutsui@.)

branches: 1.2.2; 1.2.10; 1.2.16; 1.2.22;
Reenable PCI on DBAU1500. May still be useful for PIO devices. Comments
in the config are left intact, though.
Add a PMAP-driven bus_space for access to upper memory, instead of using
wired entries.
Convert aupci to use said bus_space -- no measured performance impact.

Add Au1550 PCI support (Au1500 not yet, coming shortly).
Closes PR port-evbmips/32087.
Reviewed by simonb@ (Also, earlier, matt@, and tsutsui@.)

Neither pci_dma64_available(), pci_probe_device(), pci_mapreg_map(9),
pci_find_rom(), pci_intr_map(9), pci_enumerate_bus(), nor the match
predicate passed to pciide_compat_intr_establish() should ever modify
their pci_attach_args argument, so make their pci_attach_args arguments
const and deal with the fallout throughout the kernel.

For the most part, these changes add a 'const' where there was no
'const' before, however, some drivers and MD code used to modify
pci_attach_args. Now those drivers either copy their pci_attach_args
and modify the copy, or refrain from modifying pci_attach_args:

Xen: according to Manuel Bouyer, writing to pci_attach_args in
pci_intr_map() was a leftover from Xen 2. Probably a bug. I
stopped writing it. I have not tested this change.

siside(4): sis_hostbr_match() needlessly wrote to pci_attach_args.
Probably a bug. I use a temporary variable. I have not tested this
change.

slide(4): sl82c105_chip_map() overwrote the caller's pci_attach_args.
Probably a bug. Use a local pci_attach_args. I have not tested
this change.

viaide(4): via_sata_chip_map() and via_sata_chip_map_new() overwrote the
caller's pci_attach_args. Probably a bug. Make a local copy of the
caller's pci_attach_args and modify the copy. I have not tested
this change.

While I'm here, make pci_mapreg_submap() static.

With these changes in place, I have tested the compilation of these
kernels:

alpha GENERIC
amd64 GENERIC XEN3_DOM0
arc GENERIC
atari HADES MILAN-PCIIDE
bebox GENERIC
cats GENERIC
cobalt GENERIC
evbarm-eb NSLU2
evbarm-el ADI_BRH ARMADILLO9 CP3100 GEMINI GEMINI_MASTER GEMINI_SLAVE GUMSTIX
HDL_G IMX31LITE INTEGRATOR IQ31244 IQ80310 IQ80321 IXDP425 IXM1200
KUROBOX_PRO LUBBOCK MARVELL_NAS NAPPI SHEEVAPLUG SMDK2800 TEAMASA_NPWR
TEAMASA_NPWR_FC TS7200 TWINTAIL ZAO425
evbmips-el AP30 DBAU1500 DBAU1550 MALTA MERAKI MTX-1 OMSAL400 RB153 WGT624V3
evbmips64-el XLSATX
evbppc EV64260 MPC8536DS MPC8548CDS OPENBLOCKS200 OPENBLOCKS266
OPENBLOCKS266_OPT P2020RDB PMPPC RB800 WALNUT
hp700 GENERIC
i386 ALL XEN3_DOM0 XEN3_DOMU
ibmnws GENERIC
macppc GENERIC
mvmeppc GENERIC
netwinder GENERIC
ofppc GENERIC
prep GENERIC
sandpoint GENERIC
sgimips GENERIC32_IP2x
sparc GENERIC_SUN4U KRUPS
sparc64 GENERIC

As of Sun Apr 3 15:26:26 CDT 2011, I could not compile these kernels
with or without my patches in place:

### evbmips-el GDIUM

nbmake: nbmake: don't know how to make /home/dyoung/pristine-nbsd/src/sys/arch/mips/mips/softintr.c. Stop

### evbarm-el MPCSA_GENERIC
src/sys/arch/evbarm/conf/MPCSA_GENERIC:318: ds1672rtc*: unknown device `ds1672rtc'

### ia64 GENERIC

/tmp/genassym.28085/assym.c: In function 'f111':
/tmp/genassym.28085/assym.c:67: error: invalid application of 'sizeof' to incomplete type 'struct pcb'
/tmp/genassym.28085/assym.c:76: error: dereferencing pointer to incomplete type

### sgimips GENERIC32_IP3x

crmfb.o: In function `crmfb_attach':
crmfb.c:(.text+0x2304): undefined reference to `ddc_read_edid'
crmfb.c:(.text+0x2304): relocation truncated to fit: R_MIPS_26 against `ddc_read_edid'
crmfb.c:(.text+0x234c): undefined reference to `edid_parse'
crmfb.c:(.text+0x234c): relocation truncated to fit: R_MIPS_26 against `edid_parse'
crmfb.c:(.text+0x2354): undefined reference to `edid_print'
crmfb.c:(.text+0x2354): relocation truncated to fit: R_MIPS_26 against `edid_print'

branches: 1.2.2; 1.2.10; 1.2.16; 1.2.22; 1.2.102; 1.2.108;
Reenable PCI on DBAU1500. May still be useful for PIO devices. Comments
in the config are left intact, though.
Add a PMAP-driven bus_space for access to upper memory, instead of using
wired entries.
Convert aupci to use said bus_space -- no measured performance impact.

Add Au1550 PCI support (Au1500 not yet, coming shortly).
Closes PR port-evbmips/32087.
Reviewed by simonb@ (Also, earlier, matt@, and tsutsui@.)

s/inerrupt/interrupt/ and s/intrrupt/interrupt/ in comments.

Merge thorpej-cfargs2.

branches: 1.11.8;
Merge thorpej-cfargs branch:

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

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

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

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

...and a sentinel value CFARG_EOL.

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

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

branches: 1.10.32;
Turn interrupts back off after sleeping. From maxv's Brainy list.

branches: 1.9.6; 1.9.24;
Use device_t instead of 'struct device *'.
Remove unnecessary \n.

Use device_t instead of 'struct device *'.
Call aprint_* in auto-config time.

branches: 1.7.2; 1.7.6;
Don't set the iobase and iosize members of pcmciabus_attach_args because
they're not used in any meaningful way.

add include for incomplete struct blah blah blah

Make compile (hi moof).

branches: 1.4.2; 1.4.4; 1.4.8;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.3.10;
Merge some of the less invasive changes from the vmlocking branch:

- kthread, callout, devsw API changes
- select()/poll() improvements
- miscellaneous MT safety improvements

branches: 1.2.2; 1.2.8; 1.2.14; 1.2.24; 1.2.26; 1.2.32;
Remove verbose debug message, and make sure we pass right IPL.
(Pedantic, since IPL isn't used in ICU, but better to be pedantic and right
than wrong.)

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.8;
Initial commit of aupcmcia chip driver. It requires board specific logic
(coming in a the follow up commit for dbau1550 only), and is not yet complete.
It has serious problems, enough that it isn't yet usable, although the
functionality is all basically fleshed out. It is not enabled in any
default kernels at this point, so it should be benign. Hopefully the
bugs will soon be worked out and these caveats can be removed.

s/particlar/particular/ in comment.

branches: 1.1.2; 1.1.10; 1.1.16; 1.1.22; 1.1.204;
Initial commit of aupcmcia chip driver. It requires board specific logic
(coming in a the follow up commit for dbau1550 only), and is not yet complete.
It has serious problems, enough that it isn't yet usable, although the
functionality is all basically fleshed out. It is not enabled in any
default kernels at this point, so it should be benign. Hopefully the
bugs will soon be worked out and these caveats can be removed.

branches: 1.1.2; 1.1.10; 1.1.16; 1.1.22;
Initial commit of aupcmcia chip driver. It requires board specific logic
(coming in a the follow up commit for dbau1550 only), and is not yet complete.
It has serious problems, enough that it isn't yet usable, although the
functionality is all basically fleshed out. It is not enabled in any
default kernels at this point, so it should be benign. Hopefully the
bugs will soon be worked out and these caveats can be removed.

Merge thorpej-cfargs2.

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?).

branches: 1.7.62;
Use device_t instead of 'struct device *'.
Call aprint_* in auto-config time.

branches: 1.6.2; 1.6.6;
#include <sys/bus.h> instead of <machine/bus.h>.

Make PSC better able to support different protocols, as developed for SPI.
The main changes needed are:

1) pass address and IRQ information from aubus (auspi uses interrupts)

2) all Au1550 PSC protocols have the same status and register bits
for enable, so clean that up (clock registers could be different)

3) improve timeout logic on enable (a fixed delay isn't good enough)

4) make aupsc_print return QUIET, as it is annoying to see messages
for unconfigured protocols. This whole mechanism should be re-
engineered, to either use indirect configuration or provide more
detailed board-driven configuration. A comment to that effect is
placed in the source.

This is shown to work on DBAU1550.

branches: 1.4.6; 1.4.12; 1.4.16; 1.4.18; 1.4.20;
Change name of SMBus include: smbusreg.h => ausmbus_pscreg.h.

Remove commented out "ausmbus" instance now that there's a fleshed out
instance above this.

Add enable/disable/suspend functions for AuXXXX PSC devices.

branches: 1.1.2; 1.1.4;
Add Au1XXX PSC(Programable Serial Controller) bus-type driver.
PSC supports four protocols (AC97, I2S, SPI, SMBus).
These protocol drivers will be configured on the bus.

Make PSC better able to support different protocols, as developed for SPI.
The main changes needed are:

1) pass address and IRQ information from aubus (auspi uses interrupts)

2) all Au1550 PSC protocols have the same status and register bits
for enable, so clean that up (clock registers could be different)

3) improve timeout logic on enable (a fixed delay isn't good enough)

4) make aupsc_print return QUIET, as it is annoying to see messages
for unconfigured protocols. This whole mechanism should be re-
engineered, to either use indirect configuration or provide more
detailed board-driven configuration. A comment to that effect is
placed in the source.

This is shown to work on DBAU1550.

branches: 1.2.6; 1.2.12; 1.2.16; 1.2.18; 1.2.20;
Add some definitions for register bits.

branches: 1.1.2; 1.1.4;
Add Au1XXX PSC(Programable Serial Controller) bus-type driver.
PSC supports four protocols (AC97, I2S, SPI, SMBus).
These protocol drivers will be configured on the bus.

Use device_t instead of 'struct device *'.
Call aprint_* in auto-config time.

branches: 1.3.90; 1.3.94;
Make PSC better able to support different protocols, as developed for SPI.
The main changes needed are:

1) pass address and IRQ information from aubus (auspi uses interrupts)

2) all Au1550 PSC protocols have the same status and register bits
for enable, so clean that up (clock registers could be different)

3) improve timeout logic on enable (a fixed delay isn't good enough)

4) make aupsc_print return QUIET, as it is annoying to see messages
for unconfigured protocols. This whole mechanism should be re-
engineered, to either use indirect configuration or provide more
detailed board-driven configuration. A comment to that effect is
placed in the source.

This is shown to work on DBAU1550.

branches: 1.2.6; 1.2.12; 1.2.16; 1.2.18; 1.2.20;
Add enable/disable/suspend functions for AuXXXX PSC devices.

branches: 1.1.2; 1.1.4;
Add Au1XXX PSC(Programable Serial Controller) bus-type driver.
PSC supports four protocols (AC97, I2S, SPI, SMBus).
These protocol drivers will be configured on the bus.

Change todr_chip_handle::cookie -> todr_chip_handle::todr_dev, and
make it a device_t. Upcoming functional changes will require the
device_t associated with a TODR device.

Change todr_chip_handle::bus_cookie -> todr_chip_handle::todr_devaux.
Nothing was using the old field, but I decided to keep it around just
in cause something needs it in the future.

And with these largely mechanical yet semantically meaningful changes,
thus spake the Oracle: "Welcome to NetBSD 11.99.2."

Remove unnecessary NULL-initialization of TODR handle fields.

Use device_t instead of 'struct device *'.
Call aprint_* in auto-config time.

branches: 1.13.2; 1.13.6;
#include <sys/bus.h> instead of <machine/bus.h>.

Remove `volatile' qualifier from argument types of
struct timeval passed to todr_gettime(9) and todr_settime(9).
We no longer have an ancient and volatile struct timeval `time'
global since we have switched to MI timercounter(9) on all port.

XXX1: some of these RTC drivers still assume 32bit time_t
XXX2: some of these should be rewritten to use todr_[gs]ettime_ymdhms()
XXX3: todr(9) man page doesn't mention todr_[gs]ettime_ymdhms()

branches: 1.11.60;
Remove unused todr_setcal/todr_getcal and all the assorted stub
implementations.

Use todr_attach.

Rework evbmips clock architecture to use common clock_subr.h routines.

Additionally, do not fail if no RTC is present, as not all boards have one.

Malta now uses the common dev/ic/mc146818.c code as much as possible, reducing
local "custom" code. These malta changes are *untested*, as I do not have
a Malta board to test with. If someone would please test them and get back to
me, I'd appreciate it!

branches: 1.8.2;
Fix the RTC so that the AU1550 keeps accurate time. The RTC is taken from
the TOY register, which is presumed to be seconds since Jan. 1 2000.

For now I'm assuming the trim divider is 32K, which makes 1 tick per sec.
This is true for the DBAU1550 board at least. Other boards might need to
initialize a reasonable trim counter and establish the 32KHz oscillator.

In any case, this code is *no worse* on older systems than what was there
before.

branches: 1.7.4; 1.7.6; 1.7.8; 1.7.10;
merge ktrace-lwp.

branches: 1.6.16;
__KERNEL_RCSID()

branches: 1.5.6;
Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

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

branches: 1.1.2; 1.1.4; 1.1.6;
Add support for the the Alchemy Semiconductor Au1x00 series on-chip
devices. Currently the serial ports and ethernet MAC have working
drivers, and this has only been physically tested on the Au1000 CPU,
but these devices should work on the Au1100 and Au1500 CPUs too.

Encapsulate what's needed to attach an I2C bus into a iicbus_attach()
inline.

fix typos in word "functions" in comments, mainly s/fuctions/functions/.

Merge thorpej-cfargs2.

branches: 1.14.8;
Merge thorpej-cfargs branch:

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

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

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

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

...and a sentinel value CFARG_EOL.

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

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

branches: 1.13.10;
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().

branches: 1.12.18;
zero the i2c_attach_args structure before filling it in.
fixes occasional crashes in iic_attach().

branches: 1.11.6; 1.11.24;
Use device_t instead of 'struct device *'.
Call aprint_* in auto-config time.

branches: 1.10.2; 1.10.6;
#include <sys/bus.h> instead of <machine/bus.h>.

One more implementation of the quick_{read,write} I2C protocol. Note
that this is currently used only by the I2C_SCAN code (disabled by
default).

XXX Not tested due to lack of hardware. Reviewed by simon@ and shige@.

branches: 1.8.20; 1.8.28; 1.8.34;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.7.2;
Remove white-spaces.

branches: 1.6.6; 1.6.16; 1.6.24; 1.6.30; 1.6.34;
use the "i2cbus" interface attribute rather than putting a string name
into the i2cbus attach args

Supoort read/write word.

branches: 1.4.2; 1.4.6; 1.4.8;
Add waits after bus_space_write.

branches: 1.3.2; 1.3.4; 1.3.6;
Change name of SMBus include: smbusreg.h => ausmbus_pscreg.h.

Remove working-debug codes.
I apologize sincerely...

Add support for On-chip PSC SMBus protocol.

s/intterrupt/interrupt/ in comments.

branches: 1.1.4; 1.1.8; 1.1.14; 1.1.20;
Change name of SMBus include: smbusreg.h => ausmbus_pscreg.h.

Encapsulate what's needed to attach a SPI bus into a spibus_attach()
inline.

branches: 1.11.2;
Merge thorpej-cfargs2.

branches: 1.10.2; 1.10.8;
Merge thorpej-cfargs branch:

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

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

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

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

...and a sentinel value CFARG_EOL.

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

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

branches: 1.9.10;
ensure spibus_attach_args is zero'ed

branches: 1.8.48;
Use device_t instead of 'struct device *'.
Remove unnecessary \n.

Use device_t instead of 'struct device *'.
Call aprint_* in auto-config time.

branches: 1.6.2; 1.6.6;
Fix machine/ includes

#include <sys/bus.h> instead of <machine/bus.h>.

- Use IPL_BIO (instead of IPL_SERIAL) for SPI.
- Convert simple_lock/ltsleep to mutex/condvar.

branches: 1.3.66; 1.3.76;
TRUE -> true, FALSE -> false

Replace the Mach-derived boolean_t type with the C99 bool type. A
future commit will replace use of TRUE and FALSE with true and false.

branches: 1.1.2; 1.1.4; 1.1.8; 1.1.10;
Add Alchemy PSC SPI bus protocol driver. Not activated on any boards yet,
that requires an evbmips commit.

branches: 1.1.2; 1.1.4; 1.1.8;
Add Alchemy PSC SPI bus protocol driver. Not activated on any boards yet,
that requires an evbmips commit.

branches: 1.1.2; 1.1.4; 1.1.8;
Add Alchemy PSC SPI bus protocol driver. Not activated on any boards yet,
that requires an evbmips commit.

Simplify regmap initialization, and fix an regmap issue that
affected TI OMAP (LCR register would get clobbered due to
using the wrong offset for the MDR1 register) reported by Lwazi Dube
(who also found the root cause).

Remove the COM_REGMAP option -- just use it all the time. While here,
garbage-collect the COM_FUNCMAP and COM_AU1X00 options, as there are
not used anywhere.

Clean up initialization of com_regs structure, in preparation for
some additional changers.

branches: 1.6.52; 1.6.54;
#include <sys/bus.h> instead of <machine/bus.h>.

Split device_t and softc for all com(4) devices (well, everything that
uses a com_softc backend). Use proper types and ansify where appropriate.

branches: 1.4.12; 1.4.16;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.3.10;
Now that curcpu() is defined in terms of curlwp() for mips, we need to
include <sys/lwp.h> where curcpu() is used.

branches: 1.2.4; 1.2.8; 1.2.14; 1.2.20; 1.2.22; 1.2.28;
Add an option COM_REGMAP to allow com(4) to use an array of register indices.
This allows us to convert aucom to just another com attachment, and cleanup
some code in the com_arbus.c.

Additionally, we use a common com_cleanup routine rather than having a
zillion copies of it in the attachment points.

This has been tested on a number architectures, and it has been shown to get
close to comparable performance when COM_REGMAP is defined, and comparable
when it is not defined.

Approved by core@. Fixes PR port-evbmips/32362.

branches: 1.1.2;
file com_aubus.c was initially added on branch gdamore-uart.

branches: 1.2.4; 1.2.8; 1.2.14;
Add an option COM_REGMAP to allow com(4) to use an array of register indices.
This allows us to convert aucom to just another com attachment, and cleanup
some code in the com_arbus.c.

Additionally, we use a common com_cleanup routine rather than having a
zillion copies of it in the attachment points.

This has been tested on a number architectures, and it has been shown to get
close to comparable performance when COM_REGMAP is defined, and comparable
when it is not defined.

Approved by core@. Fixes PR port-evbmips/32362.

branches: 1.1.2;
file com_aubus_reg.h was initially added on branch gdamore-uart.

Use ether_getaddr().

if_stats(9): Add ifp argument to if_stat..._ref.

This will enable us to pass the ifp through to a dtrace probe inside.

No functional change intended in this change, but this is an API
change visible to modules so it shouldn't be pulled up.

PR kern/58377

Remove unnecessary include of <sys/malloc.h>.

Trailing whitespace

Eliminate use of IFF_OACTIVE.

s/occurence/occurrence/

Adopt <net/if_stats.h>.

branches: 1.47.4;
Use ETHER_LOCK()/ETHER_UNLOCK() for all ethernet drivers to protect ec_multi*.

No functional change:
- Simplify MII structure initialization and reference.
- u_int*_t -> uint*_t.
- KNF

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

branches: 1.44.2;
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.

branches: 1.43.14;
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

Apply deferred if_start framework

if_schedule_deferred_start checks if the if_snd queue contains packets,
so drivers don't need to check it by themselves.

branches: 1.41.2;
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.

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!

MD rnd.h cleanups. Please let me know if I broke anything!

branches: 1.38.4;
Merge tls-earlyentropy branch into HEAD.

branches: 1.37.2; 1.37.12;
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.

Fix can't assign IPv6 address. Valiable error resets to 0, if error == ENETRESET in aumac_ioctl().

Enable interrupt in aumac_init(). And disable in aumac_stop()/aumac_attach().
Interrupt storm happen if received packet and DMA not set.

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.

Use device_t instead of 'struct device *'.
Call aprint_* in auto-config time.

branches: 1.32.2;
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.

branches: 1.31.2;
Fix machine/ includes

#include <sys/bus.h> instead of <machine/bus.h>.

Pull in uvm/uvm.h for VM_PAGE_TO_PHYS().

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.

branches: 1.27.2; 1.27.4;
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.

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.

branches: 1.25.10;
kill unused variable

Make many ethernet drivers share the common code for MII media
handling, ether_mediastatus() and ether_mediachange(). Check for
a non-ENXIO error return from mii_mediachg(). (ENXIO indicates
that a PHY is suspended.)

This patch shrinks the source code size by 979 lines. There was
a 5100-byte savings on the NetBSD/i386 kernel configuration, ALL.

I have made a few miscellaneous changes, too:

gem(4): use LIST_EMPTY(), LIST_FOREACH().
mtd(4): handle media ioctls, for a change!
axe(4): do not track link status in sc->axe_link any longer
nfe(4), aue(4), axe(4), udav(4), url(4): do not reset all PHYs
on a change of media

Except for the change to mtd(4), no functional changes are intended.

XXX This patch affects more architectures than I can feasibly
XXX compile and run. I have compiled macppc, sparc64, i386. I
XXX have run the patches on i386 boxen with bnx(4) and sip(4).
XXX Compiling and running on evbmips (MERAKI, ADM5120) is in
XXX progress.

branches: 1.23.2; 1.23.8;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.22.2;
Constify.

branches: 1.21.4; 1.21.8;
Merge some of the less invasive changes from the vmlocking branch:

- kthread, callout, devsw API changes
- select()/poll() improvements
- miscellaneous MT safety improvements

branches: 1.20.2; 1.20.4; 1.20.10;
Fix some caddr_t rototill fallout.

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.18.4;
Get rid of annoying and useless missed frame message, no other driver
echos this "non-error" message (not even tulip.c). Included is an
explanatory message stating that these counters should probably all be
converted to evcnt counters.

branches: 1.17.8; 1.17.10;
Remove the devprop API and switch everthing over to the new proplib. Add
a new device_properties() accessor for device_t that returns the device's
property dictionary.

branches: 1.16.2; 1.16.4; 1.16.6;
Oops, missed the call to rnd_attach_source() in previous.

Contribute to the random pool. No measurable difference to network
speeds when measured with nttcp.

- Don't expose dev_propdb directly -- provide devprop_*() wrappers instead.
- Rework the ARMADILLO / epe device properties interaction so that it actually
associates the MAC address property with the epe device instance.

branches: 1.13.2; 1.13.4; 1.13.6;
use VM_PAGE_TO_PHYS macro.

branches: 1.12.12;
When adding/deleting multicast addresses, only whack the address
filter if the interface is marked RUNNING.

Fixes kern/27678.

branches: 1.11.4;
Nuke the "alchemy_info" stuff, and just use the dev_propdb to set
the mac-addr property for the Au1x00 on-chip MACs.

branches: 1.10.2;
Use "rxintr" for the name of the receive interrupts evcnt instead
of "txintr". Much less confusing that way...

Zero out the TX buffer when padding packet to ETHER_MIN_LEN-ETHER_CRC_LEN.

Tidy up event counter increments a little.

Removed unused register map; this info is now passed in with the attach
args.

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

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

branches: 1.2.2; 1.2.4; 1.2.6;
Remove some debug code accidently left in.

Add support for the the Alchemy Semiconductor Au1x00 series on-chip
devices. Currently the serial ports and ethernet MAC have working
drivers, and this has only been physically tested on the Au1000 CPU,
but these devices should work on the Au1100 and Au1500 CPUs too.

branches: 1.1.2; 1.1.4; 1.1.6;
Add support for the the Alchemy Semiconductor Au1x00 series on-chip
devices. Currently the serial ports and ethernet MAC have working
drivers, and this has only been physically tested on the Au1000 CPU,
but these devices should work on the Au1100 and Au1500 CPUs too.

Remove unused ohci stub.

__KERNEL_RCSID()

branches: 1.5.6;
Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

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

branches: 1.1.2; 1.1.4; 1.1.6;
Add support for the the Alchemy Semiconductor Au1x00 series on-chip
devices. Currently the serial ports and ethernet MAC have working
drivers, and this has only been physically tested on the Au1000 CPU,
but these devices should work on the Au1100 and Au1500 CPUs too.

Merge thorpej-cfargs2.

branches: 1.17.8;
Merge thorpej-cfargs branch:

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

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

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

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

...and a sentinel value CFARG_EOL.

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

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

branches: 1.16.32;
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

branches: 1.15.12; 1.15.28; 1.15.30; 1.15.34;
#include <sys/bus.h> instead of <machine/bus.h>.

Remove clause 3 and 4 from TNF licenses

branches: 1.13.2; 1.13.4;
minor fixes for device/softc split, approved by dogcow
(not tested on real hardware yet)

...and fix my fix to do the proper device_t split.

fix device_t split fallout.

branches: 1.10.68;
Split out peripheral register defines from aureg.h. As discussed with
simonb@.

Remove pointless (unused) dependency upon pb1000 evbmips headers.

branches: 1.8.2; 1.8.4; 1.8.6;
Add basic support for Alchemy Au1550 processor (CPU and devices).
Patch contributed by Garrett D'Amore in PR port-evbmips/32030.

Make OHCI work on Au1500 systems running in big-endian mode.
Patch contributed by Garrett D'Amore in PR port-evbmips/31912.

merge ktrace-lwp.

branches: 1.5.16;
Remove "struct aubus_ohci_softc". As well as ohci_softc_t, it only had
a copy of the interrupt cookie which isn't used outside the attach. We
has also bogusly only told the autoconfiguration machinery that our softc
was as big as a ohci_softc_t, not a struct aubus_ohci_softc.
Also, disestablish the interrupt if OHCI initialisation fails.

Tell the Alchemy Au1x00 on-chip ohci that we're in big-endian mode if
necessary.

__KERNEL_RCSID()

branches: 1.2.2;
Read USBH_ENABLE twice in succession according to Errata 7 for au1500.

OHCI front-end driver for Alchemy cpu's. We now have USB Host support.
Tested on PB1500 and DB1500 boards.

branches: 1.1.2; 1.1.10; 1.1.16; 1.1.22;
Split out peripheral register defines from aureg.h. As discussed with
simonb@.

Change name of SMBus include: smbusreg.h => ausmbus_pscreg.h.

Add register definitions for AuXXXX SMBus protocol.

branches: 1.1.2; 1.1.10; 1.1.16; 1.1.22;
Split out peripheral register defines from aureg.h. As discussed with
simonb@.

branches: 1.1.2; 1.1.10; 1.1.16; 1.1.22;
Reenable PCI on DBAU1500. May still be useful for PIO devices. Comments
in the config are left intact, though.
Add a PMAP-driven bus_space for access to upper memory, instead of using
wired entries.
Convert aupci to use said bus_space -- no measured performance impact.

branches: 1.1.2; 1.1.10; 1.1.16; 1.1.22;
Add a bus_space that makes use of wired TLB entries, as required for PCI,
PCMCIA, and perhaps other devices on Alchemy parts.

Closes PR port-evbmips/32298
Reviewed as part of PCI changes by matt@, izumi@, and probably also simonb@.

This implementation has been tested seperately with my PCI code. This commit
does not add the necessary changes to configuration files to include this in
current configurations yet, as I intend to add that when I add the
multi-platform configuration support for evbmips/alchemy (which will be
required for PCI anyway.)

#include <sys/bus.h> instead of <machine/bus.h>.

Add an option COM_REGMAP to allow com(4) to use an array of register indices.
This allows us to convert aucom to just another com attachment, and cleanup
some code in the com_arbus.c.

Additionally, we use a common com_cleanup routine rather than having a
zillion copies of it in the attachment points.

This has been tested on a number architectures, and it has been shown to get
close to comparable performance when COM_REGMAP is defined, and comparable
when it is not defined.

Approved by core@. Fixes PR port-evbmips/32362.

branches: 1.3.18; 1.3.32; 1.3.36; 1.3.44;
allocate an aubus dma tag.

Fix a grammatical nit.

branches: 1.1.2; 1.1.4; 1.1.6;
Add support for the the Alchemy Semiconductor Au1x00 series on-chip
devices. Currently the serial ports and ethernet MAC have working
drivers, and this has only been physically tested on the Au1000 CPU,
but these devices should work on the Au1100 and Au1500 CPUs too.

fix various typos, mainly in comments, but also log messages, docs, game text.

fix multiplei repetitive typos in comments, messages and documentation. mainly because copy paste code big amount of files are affected.

Add register values required to configure PSC/SPI devices on Alchemy AU1550.
Fairly soon I will be committing a new SPI bus framwork and an Alchemy
Au1550 implementation of the framework.

branches: 1.17.8; 1.17.10;
Fix some comment grammar nits.

Ooops, forgot to commit some register renames. (Minor cleanups.)

branches: 1.15.2; 1.15.4; 1.15.6;
Fix base-address for PSC devices.

Add Au1XXX PSC(Programable Serial Controller) bus-type driver.
PSC supports four protocols (AC97, I2S, SPI, SMBus).
These protocol drivers will be configured on the bus.

Add missing GPIO_BASE, plus clean up PCMCIA_BASE and add STATIC_BUS_BASE.
Fixes build error noted by martin@

Reduce address space used by PCI.
Add definitions for PCMCIA addresses.

Split out peripheral register defines from aureg.h. As discussed with
simonb@.

Remove if_aumac register defs, which were generally #ifdef'd out anyway.

Remove not-useful UART references from aureg.h, duplicates consolidated into
aucomreg.h. First part of aureg.h cleanup requested by simonb@.

Add Au1550 PCI support (Au1500 not yet, coming shortly).
Closes PR port-evbmips/32087.
Reviewed by simonb@ (Also, earlier, matt@, and tsutsui@.)

branches: 1.7.2; 1.7.4; 1.7.6;
Add basic support for Alchemy Au1550 processor (CPU and devices).
Patch contributed by Garrett D'Amore in PR port-evbmips/32030.

merge ktrace-lwp.

branches: 1.5.12;
Add USB device controller register names.

Add a define for the size of the UART register block.

branches: 1.3.2;
add defines for Alchemy clock and frequency control registers.

Fix typo in the address of the Au1500 MAC1 enable register; 2nd MAC works
on the Au1500 cpu now.

branches: 1.1.2; 1.1.4; 1.1.6;
Add support for the the Alchemy Semiconductor Au1x00 series on-chip
devices. Currently the serial ports and ethernet MAC have working
drivers, and this has only been physically tested on the Au1000 CPU,
but these devices should work on the Au1100 and Au1500 CPUs too.

#include <sys/cpu.h> or <mips/cpuregs.h> as needed

branches: 1.11.12; 1.11.30;
Fix machine/ includes

Merge forward from matt-nb5-mips64.

branches: 1.9.64; 1.9.68; 1.9.74; 1.9.76;
Replace the Mach-derived boolean_t type with the C99 bool type. A
future commit will replace use of TRUE and FALSE with true and false.

branches: 1.8.20;
Reenable PCI on DBAU1500. May still be useful for PIO devices. Comments
in the config are left intact, though.
Add a PMAP-driven bus_space for access to upper memory, instead of using
wired entries.
Convert aupci to use said bus_space -- no measured performance impact.

Reduce address space used by PCI.
Add definitions for PCMCIA addresses.

Add au_intr_enable() and au_intr_disable() API to allow for split interrupts
(e.g. PCMCIA leaves GPIO interrupt masked and reenables them soft interrupt.)
Add checks for masked interrupts before calling the handler.
When removing last interrupt handler, mask off interrupts completely using
MASK_CLEAR and WAKEUP_CLEAR. Tested on dbau1500.

Add Au1550 PCI support (Au1500 not yet, coming shortly).
Closes PR port-evbmips/32087.
Reviewed by simonb@ (Also, earlier, matt@, and tsutsui@.)

Fix up incorrect ICU reporting, add processor specific switch tables for
IRQ routing and such.

Closes PR port-evbmips/31992.
Reviewed by simonb@, matt@, and izumi@

branches: 1.3.2; 1.3.4; 1.3.6;
merge ktrace-lwp.

branches: 1.2.16;
Nuke the "alchemy_info" stuff, and just use the dev_propdb to set
the mac-addr property for the Au1x00 on-chip MACs.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.12;
Add support for the the Alchemy Semiconductor Au1x00 series on-chip
devices. Currently the serial ports and ethernet MAC have working
drivers, and this has only been physically tested on the Au1000 CPU,
but these devices should work on the Au1100 and Au1500 CPUs too.