Build db_machdep.c when KGDB option is enabled.
Do not cast (regs)->db_tf.tf_pc to db_addr_t (thus ifdef block is redundant).
Adjust ifdef conditions in db_interface.c to make it build with KGDB option.
While here, add #endif comments for longer blocks.

These changes should make sparc build with KGDB option, once ddb/db_access.c
code will be fixed to build with it.

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: 1.162.4;
make process_machdep.c included always since it provides register i/o used by
sys_process_getlwpstatus.c which is always included.

harmonize process_machdep.c inclusion.

Improve am7930 family drivers to share more code.
audioamd(4) on sparc, vsaudio(4) on vax, and bba(4) are.
- Remove complex and useless callbacks: onopen, onclose, and
indirect_{read,write}. This makes audioamd and vsaudio almost the same.
- Remove (already disabled) assembly fast interrupt path from audioamd(4).
cf. http://mail-index.netbsd.org/source-changes/2009/12/19/msg004585.html
- Use trigger_* method rather than start_* method. It's more suitable.
vsaudio(4) was tested by naru@, bba(4) was tested by tsutsui@.

defflag SX_DEBUG

Remove compat_svr4 and compat_svr4_32, as discussed on tech-kern@ recently,
but also as discussed several times in the past.

branches: 1.157.2; 1.157.4;
Move the ddb registers and empty command table used for crash(8) into
db_machdep.c like other archs.

branches: 1.156.10;
cgfourteen needs glyphcache now

cgfourteen needs vcons

branches: 1.154.12;
Add PCI fixup for MicroSPARC-IIep.
Unconfigured PCI-PCI bridges and devices behind them are configured.

attachment and initialization for SX

Enable bpfjit on sparc.

branches: 1.151.2; 1.151.12;
Welcome to 5.99.53! Merge rmind-uvmplock branch:

- Reorganize locking in UVM and provide extra serialisation for pmap(9).
New lock order: [vmpage-owner-lock] -> pmap-lock.

- Simplify locking in some pmap(9) modules by removing P->V locking.

- Use lock object on vmobjlock (and thus vnode_t::v_interlock) to share
the locks amongst UVM objects where necessary (tmpfs, layerfs, unionfs).

- Rewrite and optimise x86 TLB shootdown code, make it simpler and cleaner.
Add TLBSTATS option for x86 to collect statistics about TLB shootdowns.

- Unify /dev/mem et al in MI code and provide required locking (removes
kernel-lock on some ports). Also, avoid cache-aliasing issues.

Thanks to Andrew Doran and Joerg Sonnenberger, as their initial patches
formed the core changes of this branch.

branches: 1.150.6;
Prepare sparc optimized (by 32 bit add-with-carry insns) cpu_in_cksum()
which is reusing in_cksum_internal() in old sparc/in_cksum.c.

~4% improvements of ttcp(1) xfer rates on SS1+ with le(4).

branches: 1.149.2; 1.149.4;
Add apc(4), a driver for the Aurora Personality Chip (APC) found
on SPARCstation-4/5, and emulated by qemu to idle the simulator
when the CPU is idle. Infos about the registers from the linux driver.
Not enabled by default because it can cause some Sparc systems to
hang (so says the linux driver).
Only the CPU idle part implemented at this time; fan speed and
Convenience power outlet management to be added.
Tested on qemu.

Remove commented out and nonexistent cgthree at obio stuff.

SPARCclassic has onboard CG3 but it's internally connected via SBus,
and there is no info about sun4m machines which actually require
cgthree at obio attachment. Info from jdc@.

Make the emulations, exec formats, coredump, NFS, and the NFS server
into modules. By and large this commit:

- shuffles header files and ifdefs
- splits code out where necessary to be modular
- adds module glue for each of the components
- adds/replaces hooks for things that can be installed at runtime

branches: 1.146.6; 1.146.10; 1.146.16; 1.146.18; 1.146.20; 1.146.24;
Since files.wscons et al. are included by ~all ports anyway, include
them in the mi "files" file, and remove include statements from md files.
These shouldn't pull in additional kernel code when not in use, so it
shouldn't do any harm except a risk of namespace collisions which
should be easy to fix.

Make sparc use atomic_cas_ulong() for mutex and rwlock operations, and
disable the custom mutex/rwlock code. PR port-sparc/37930. ok martin@

Refactor in_cksum/in4_cksum/in6_cksum implementations:
- All three functions are included in the kernel by default.
They call a backend function cpu_in_cksum after possibly
computing the checksum of the pseudo header.
- cpu_in_cksum is the core to implement the one-complement sum.
The default implementation is moderate fast on most platforms
and provides a 32bit accumulator with 16bit addends for L32 platforms
and a 64bit accumulator with 32bit addends for L64 platforms.
It handles edge cases like very large mbuf chains (could happen with
native IPv6 in the future) and provides a good base for new native
implementations.
- Modify i386 and amd64 assembly to use the new interface.

This disables the MD implementations on !x86 until the conversion is
done. For Alpha, the portable version is faster.

Add MODULAR option. Include kernel linker stuff if MODULAR.

branches: 1.142.2; 1.142.8;
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: 1.141.6;
add wsdisplay support for cg14
The console will run in 8bit but switch to 32bit in mapped mode so XFree86
with wsfb can run in 24bit colour.

branches: 1.140.2; 1.140.4;
Remove leftover netns stuff.

branches: 1.139.4;
include files.wsfb

Add USB support (for the Javastation Espresso).

branches: 1.137.2; 1.137.6; 1.137.8; 1.137.10;
Merge newlock2 to head.

branches: 1.136.22;
G/c arch/sparc/sparc/sys_process.c that has been commented out since
revision 1.1 anyway.

Put the SPARCbook 3GX and 3GS CPU to sleep when idle

- add syscall_{plain,fancy}
- make it use mi_userret

sysmon_* attributes for device tctrl

Add support for the TS102 PCMCIA controller found in SPARCbooks

branches: 1.131.2;
Allow sparc64-style attachment of mouse and keyboard via zstty, needed for
wscons support.
Reviewed by uwe.

do not include "compat/aout/files.aout", COMPAT_AOUT is soon to be removed

Phase out the use of a string as first "attach args" member to control
which bustype should be attached with a specific call to config_found()
(from a "mainbus" or a bus bridge).
Do it for isa/eisa/mca and pci/agp for now. These buses all attach to
an mi interface attribute "isabus", "eisabus" etc., and the autoconf
framework now allows to specify an interface attribute on config_found()
and config_search(), which limits the search of matching config data
to these which attach to that specific attribute.
So we basically have to call config_found_ia(..., "foobus", ...) where
such a bus is attached.
As a consequence, where a "mainbus" or alike also attaches other
devices (eg CPUs) which do not attach to a specific attribute yet,
we need at least pass an attribute name (different from "foobus") so
that the foo bus is not found at these places. This made some minor
changes necessary which are not obviously related to the mentioned buses.

add some SUN4D stuff.
zs and zstty no longer need "needs-count" or "needs-flag",
so get rid of those and wild-card the extra zs devices on SUN4D.

Fix typo (pckbort -> pckbport)

Abstract the interface between pckbc(4), and the pckbd(4) and pms(4)
drivers that attach to it. This allows for other host interface chips
that use the same keyboards and mice, such as the ones in the ARM
IOMD20, ARM7500, and SA-1111. The PC-compatible driver is still
called pckbc(4), and the new abstraction layer is "pckbport", so the
child devices have moved from sys/dev/pckbc to sys/dev/pckbport, which
also contains some code shared between all host controllers. To avoid
incompatibility, pckbdreg.h is still installed in
/usr/include/dev/pckbc.

In theory, this shouldn't cause any behavioural changes in the drivers
concerned. Thy just use rather more function pointers than before. Tested
on i386 and (with a new host driver) acorn32. Compiled on several other
affected architectures.

Add a new MI attribute, pckbc_machdep_cnattach, and change pckbc_cnattach()
to only call pckbc_machdep_cnattach() if this is present. This allows
pckbc_machdep_cnattach() to be omitted entirely on most ports, where it only
returns ENXIO anyway.

The devices with this attribute at the moment are pc(4) on i386 and bebox, and
pckbc on sparc, where pckbc_machdep_cnattach() mysteriously returns 0 rather
than ENXIO.

Commit changes proposed on tech-kern Thu, 6 Nov 2003
- factor out disksubr.c between sun3, sparc and sparc64. Keep the sun3
groveling code to find a NetBSD disklabel in the first sector (so that it
can find a label at the old sun3 LABELOFFSET) as a fallback is not
label at LABELOFFSET, or sun label is present.
- Fix the sun3 LABELOFFSET (was 64, but the kernel wrote the NetBSD label at
128)
- Make next68k disksubr.c always write a next-compatible disklabel.
- remove #ifdef __sparc__ hack from disklabel(8), and change it to issue
a DIOCWDINFO after writing the disklabel to the raw partition in the
-r/-I case (so that the kernel can convert the label if needed).

Since everyone uses clock_subr.c (or should, if they don't currently),
list it in conf/files instead of in every port's files.*.

branches: 1.122.6;
Use MI versions of {set,rem}runqueue().

now that mem_no is emitted by config(8), there is no reason to keep
copy of more or less identical iskmemdev() for every arch; move the function
to spec_vnop.c, and g/c machine-dependant copies

Correct zstty interface attribute (cf files.sparc64 1.69).
Comment out unused kbd_tty and ms_tty attachments.

Add audioamd at obio attachment. Now we have working audio on 4/600's :

audioamd0 at obio0 slot 0 offset 0x500000 level 13 softpri 4
audio0 at audioamd0: full duplex

Refactor kbd and mouse drivers so that they can use different middle
layers. Common middle layer shared by kbd_zs and sunkbd is moved into
the new file. Move shared config directives to files.sun and adjust
ports' files.* accordingly.

Need this to support console/Xsun on Mr.Coffee JavaStation.

Tested on sparc, sparc64 (by martin) and sun3 (by jdc).

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.

Split the timer code up into Sun4/Sun4c, Sun4m, and MS-IIep bits, mostly
to make it more readable.

Add autoconfiguration support for the Sun4d "bootbus". Add a
zs @ bootbus attachment.

Add autoconfiguration glue for the Sun4d "cpu-unit". Each processor
board has 2 CPU units (one for each processor), one of which also has
a "bootbus", to which the serial ports, etc. are attached.

We can now probe/attach CPUs on a SPARCserver 1000.

Add SUN4D to the list of arch's in opt_sparc_arch.h.

branches: 1.112.2;
Rename the audio "bus" attribute audiobus to avoid confusion with audio
device.

* Move the mii_bitbang attribute into dev/mii/files.mii
* Pull in dev/mii/files.mii from conf/files, rather than playing
the magic "files include order" dance in N machine-dependent
configuration definitions.

Move ms-IIep PCIC driver into mspcic0 at msiiep0. msiiep0 now serves
as a stub bus that knows how to attach drivers for various functions
of PCIC.

This change is a follow up to timer0 at msiiep0 change, since all
children must share same attach arguments and so we no longer can
attach pci0 directly under msiiep0.

Untangle clock.c:
* put various time-of-day clock, timer and eeprom drivers in separate files
* avoid unnecessary overhead in interrupt handlers
* make the MSIIEP timer attach through the regular autoconf mechanisms

Rework the driver to add EBus DMA support and improve APC DMA support.
Audio-related stuff is left almost intact.

* support audiocs at ebus playback and capture
tested on krups and u5 (thanks, martin)
* make first attempt at supporting audiocs at sbus capture
* nb: full-duplex is not tested
* while here, fix CSAUDIO_MONITOR_MUTE to be of CSAUDIO_MONITOR_CLASS
i.e. outputs.monitor.mute -> monitor.monitor.mute

Ok by pk, eeh.

branches: 1.107.4;
Switch to MI dev/md_root.c for archs which don't have any special
memory disk hooks (i.e. everything except atari).

Add microSPARC-IIep support.

s/defopt/defflag/

defopt "options SUN4*", put #define for each of SUN4, SUN4C, SUN4M and SUN4U
into opt_arch_sparc.h and include this wherever they are used.

- convert usage of "defopt" to "defflag" where the relevant option does
not support a value (e.g., it's to be used as "options FOO" instead of
"options FOO=xxx"). options that take a value were converted to
defparam recently.
- minor whitespace & formatting cleanups

branches: 1.102.2; 1.102.8;
split {sunos,svr4}_sigcode out for LKMs

Merge in4_cksum().

branches: 1.100.2;
Add machdep file for procfs. Currently only used for linux-style
/proc/cpuinfo (only active when procfs is mounted with -o linux).
For ports other than the i386 this currently produces an empty
string.

Defopt BLINK.

Pull in the mk48txx and intersil7170 drivers.

add sunkbd.c and sunms.c; apparently these are now needed because
tty_conf.c brings them in.

Use common fb.c from sys/dev/sun.

Remove driver declarations that are now in /sys/dev/{sbus,sun}

The `si' driver has been transformed into an MI VME frontend.

Split si & sw drivers.

branches: 1.92.4;
Use correct file name for amd7930.

Adapt to new am7930 driver. PR 10033 from Gregory McGarry.

kd.c should not depend on `kbd'.

Add the RAIDframe device major to the machine-dependent config files
so that the right entries get added to dev_name2blk[]. Needed for / on RAID.
(Whoops! I missed checking these in when adding the RAID_AUTOCONFIG stuff.)

Add auxiotwo (Tadpole 3GX aux 2 register) entry.

Remove out-dated comment.

Allow arch-specific code to specify in4_cksum() like it can specify
in_cksum().

branches: 1.85.2;
s/(sbus | obio)/sbus for the sbus attachments. These were vestiges from
the old code.

split bwtwo driver in obio and sbus parts

add entries for the tadpole microcontroller (tctrl) and the
tadpole pcmcia controller (tpcic). Drivers for the former will
show up today, and the latter later this week or next weekend.

Initial stab at a P9100 console FB driver for the Tadpole 3GX.
It supports RASTERCONSOLE only and the colormap support is
broken (the hardware doesn't seem to be doing what the tech.
docs. say it should be doing). But it is usable as a console
(but with blue on white as the only color choice). I figured
I'd check it in since it is somewhat usable and someone else
might figure what I screwed up in the color map support.

Add preliminary support for the built-in modem on Tadpole 3GX/S
laptops. There is currently something wrong with the interrupt
code but it does attach and sense a 16550a. (anyways the built
in modem is only a 14.4Kb and you'd really want to use a PCMCIA
modem to get faster dialup rates).

back out previous - there is really a "vmebus" attribute

make the vme stuff compile again; I am not sure this is correct as I don't
have the hardware to test, but it has been broken for 3+ weeks now. Hi
Mr. Drochner!

update for new VME framework

Pull in `sparc/compat_13_machdep.c' for SunOS compatibility too.

Only declare block major numbers for devices which can be the root device.

split the sun ms/kbd drivers into frontend/backend parts at the serial
interface border, so that other serial interfaces can be attached to the
ms/kbd. zero functional changes and mostly involves moving code around
a bit. tested on the SS2.

this is necessary to attach the PCI ultrasparc keyboard/mouse drivers.

pull in files.aout

Update configuration to match `rasops' fixes and config glue.

Inclusions are already relative to the root of the kernel source tree, no need
to traverse the path all the way up again.

Bring sparc/sparc64 fb code and kernel configuration into line with
rcons changes.

branches: 1.70.2; 1.70.4; 1.70.6;
Exit: obp.c; Enter: promlib.c & openfirm.c

Add busses: PCMCIA, MII, ATA

Add file obp.c

Make cgsix_sbus & cgsix_obio dependent on their respective attribute.s

Add `eccmemctl' device.

Add compat_13_machdep.c

Define floppy device major number.

Sbus `esp' and `le' front-ends now attach in `sys/dev/sbus/files.sbus'.

move isp sbus attachment to dev/sbus

Magma driver has been moved to <dev/sbus>

`le' and `en' now attach to sbus (and lebuffer) in <dev/sbus>
Other `le' front-ends split into separate files.

Use <dev/sbus/files.sbus>.

use lebuffer.c from dev/sbus.

adapt to LANCE driver split

Remove the raw HYPERchannel kludge.

Split sparc am7930 driver into sparc attach and "MI" sys/dev/ic/am7930
chipset driver. Needs bus'ifying and register-access.

needs-flag'ize the power device.

Add entries for the magma SBus serial/parallel port driver.

Define `xbox'.

Accommodate cgsix bus-attach split.

Declare separate bus attachments for devices that can occur on multiple busses.

Remove "class" declarations, and add "devclass" declarations where
appropriate. Fix several inconsistencies between device class and
attributes. Mostly from Chris Demetriou.

VME device declaration changes:
- `vmes,vmel' => `vme'
- interrupt locator is the VME interrupt priority (`pri')

Update for changes to config.

Exclude /dev/fb code if no framebuffer is compiled into the system.
Adds a fb.h flag file with '#define NFB 1' if any such card is configured
in to the kernel.

Use common zs code.

Switch to MI kgdb code.

Merge scsipi branch in the mainline. This add support for ATAPI devices
(currently only CD-ROM drives on i386). The sys/dev/scsipi system provides 2
busses to which devices can attach (scsibus and atapibus). This needed to
change some include files and structure names in the low level scsi drivers.

Make it possible for audio to attach to audioamd.

Change the MI audio driver so it attaches to the MD driver in the
normal way. This requires adding a line to the config files to
get audio to work again.

branches: 1.40.2;
Raise max maxusers to 1024

branches: 1.39.2;
Define a `vme' device on `iommu' and allow `vmes' and `vmel' as sub-busses.

New ARP system, supports IPv4 over any hardware link.

Some of the stuff (e.g., rarpd, bootpd, dhcpd etc., libsa) still will
only support Ethernet. Tcpdump itself should be ok, but libpcap needs
lot of work.

For the detailed change history, look at the commit log entries for
the is-newarp branch.

add emul.c

specs for ISP 10x0 (isp) driver Sbus attachment. From Matt Jacob.

esp carries ncr53c9x attribute

branches: 1.34.4;
"md" is declared in sys/conf/files, now.

rename: ramdisk => md

Declare lebuffer

Centralize the declaration of the "en" driver (Efficient Networks, Inc.
155Mb/sec ATM interface).

Declare device `audio' at sbus where it resides on Microsparc machines,
from Nick Sayer's PR#2908.

Add cgfourteen driver as device "cgfourteen"

sbus specific stuff for eni155s sbus atm card.
XXX: only works on sun4c, needs something better than vtophys() for
machines with IOMMUs(?).

`rd_root.c' => `md_root.c'

ramdisk stuff.

Add tcx definition.

Switch to `sys/dev/sun/event.c'.

Remove the `espdma' special case; all `esp' related dma channels are now
called `dma' on all architectures. Note: `ledma' remains in place.

Also delete a couple of unneeded `needs-flag's in files.sparc.

Change attributes of `dma', `espdma' and `ledma' (the attributes on the latter
two didn't seem to make much sense anyway..) to allow `esp' devices to be
attached to one of `sbus', `dma' and `espdma'.

Remove the wildcarded `espdma?' and `ledma?' attachments of `esp' and `le'
respectively, in favour of `dma?' and `lebuffer?' (but the latter is not
yet implemented), which seems to better match reality: additional SBus
SCSI/Lance boards call themselves `dma' and `lebuffer'.

Make the MI LANCE driver standalone, and use cfattach to resolve
naming conflicts between bus attachments on ports that can have
multiple instances of the LANCE.

If the power device is configured, don't forget to compile the driver.
Also, add some whitespace for readability.

Include fd.c if (fdc | fd), so we're not obliged to define a device
at fdc.

sun4m device definitions and bus structure.

adjust to deal with expression support for optional file specs

New device attachment scheme:

- split softc size and match/attach out from cfdriver into
a new struct cfattach.

- new "attach" directive for files.*. May specify the name of
the cfattach structure, so that devices may be easily attached
to parents with different autoconfiguration semantics.

Add ns_cksum.

First-cut support for P4 framebuffers. Currently supports P4 variants
of bwtwo, cgfour, cgsix, and cgeight. Includes support for attaching
the overlay plane of the cgfour and cgeight as a bwtwo instance (a'la
SunOS).

P4 register descriptions, cgfour driver, and cgeight driver partially
derived from OpenBSD.

This code may still need polishing.

"si" and "sw" now have the ncr5380sbc attribute.

include `files.rcons'.

add "xy" xylogics 450/451 config stuff

Remove rcons lines.
Add cgtwo.

Add `sw' scsi adapter on obio (per Jason Thorpe, PR#1422).

Define bwtwo at obio & vme (from Jason Thorpe).

si scsi driver configs.

xd definitions, from Chuck Cranor.

Update SCSI decls.

eeprom device (from Jason Thorpe).

Added sunos_machdep.c; from Matthew Green

rename files files for new config/config.old naming

Chris Torek's sparc port. Missing lots of things.