Kernel config file parsing technology has advanced significantly in
the past decade, to the point where options can, in fact, have dependencies
on other attributes.

Re-factor the boot device and consinit routines into common functions
per platform type (PCI vs TC), eliminating a bunch of copy-pasta.

branches: 1.198.2;
Tidy up TLSB autoconfiguration just a bit.

Add a bus space implementation for the Gbus, the general 8-bit bus present
on Laser / TurboLaser CPU modules.

Add the basic framework for the DEC KN7AA ("Ruby") systems -- DEC 7000
and DEC 10000.

This is a work-in-progress, but this should be sufficient for the system
to boot, using the PROM console routines (and then proceed to not find any
devices because we don't yet support the "Laser System Bus").

Shuffle GBus-related files into their own directory in preparation for
other GBus attachments. No functional change here; just minimal editing
to reflect path differences after moving the files.

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.

Add a "qemu" driver to access services provided by the Qemu VM. First
order of business is to use the Qemu "get-time" console service call as
the perferred system timecounter.

Fix typo (s/contoller/controller/).

Remove compat_osf1, discussed on tech-kern@.

branches: 1.189.4;
move "define tcbus {}" into files.alpha. it isn't wanted for general
ports, and generates an unused symbol for pmax. with this both alpha
and pmax kernel work with gcc 5 and 6.

PCI controller doesn't rely on (depend on) AGP bus, but provide it. If one
specific architecture is known to have some specific AGP implementation, such
suggestion must be done in the "selection" part, not the "definition" part.

This is also an indirect (across bus attachment), circular dependency.

Allow kernels without tsciic to build.

Add tsciic, a driver for the DECchip 21272 Core Logic chipset I2C controller.
Tested on DS20L.

branches: 1.185.2;
move common/bus_dma/ -> dev/bus_dma/

branches: 1.184.2; 1.184.12;
Remove Avalon A12 support.
ok ross@

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: 1.182.4; 1.182.10;
if_ade doesn't build, suggesting nobody has tried to do anything
else than rototill it for the past n+1 years. The comments at the
top note a number of clauses after which it can be removed. I'm
sure that in the past 10+ years those have either been met or become
irrelevant, so remove this.

Use bus_dmamem common.

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: 1.179.6; 1.179.10; 1.179.16; 1.179.18;
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.

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: 1.176.6;
Hook in the atomic ops on alpha.

branches: 1.175.2;
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: 1.174.4; 1.174.6;
Add MI todr(9) support and timercounter(9) support with kern_cctr.c to alpha:
- use todr(9) API with MI mc146818(4) driver and remove homegrown
todr stuff from MD alpha/clock.c and alpha/mcclock.c
- also remove obsolete cc_microtime stuff from MD code
- add ci_pcc_freq member in struct cpu_info for cpu_frequency(), and
calibrate it with mc146818 interval clock in mcclock attachment
- call cc_init() in cpu_initclocks(9) because all alpha cpus have
a pcc counter

Tested on DEC 3000/300 and AlphaPC 164, but not on any SMP machines yet.

branches: 1.173.2; 1.173.4;
Remove leftover netns stuff.

branches: 1.172.2; 1.172.4;
include files.wsfb

branches: 1.171.2; 1.171.6; 1.171.8;
Merge newlock2 to head.

add bluetooth capability to alpha port

branches: 1.169.4;
Remove RASTERCONSOLE support from the pmax port.

branches: 1.168.4; 1.168.8;
merge ktrace-lwp.

branches: 1.167.12;
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.

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.

cleanup old lpt(4) attachment, and glue ppbus in so that they can coexist:
* lpt device is defined in MI place (dev/ppbus/files.ppbus), dev/ic/lpt.c
is included there too; dev/ic/lpt.c is not included if ppbus is
configured or if there is alternative platform lpt (like for pc532)
* g/c MD lpt definitions and custom puc/upc attachments,
glue moved to conf/files and dev/pci/files.pci respectively; remove
device lpt definition from dev/isa/files.isa
* add ppbus parport attribute, atppc device attachments, adjust plip and lpt
glue

pciide_machdep.c depends on pciide_common, not pciide.
Pointed out and fix tested by Marc Recht.

Siginfo changes for alpha kernel. Approved by thorpej@netbsd.org.

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: 1.161.2;
Share alpha/microtime.c with i386 and sparc64 as kern_microtime.c.
(approved by martin)

As pceb pulls in sio.c and sio_pci.c, is also needs the alpha_shared_intr
attribute.

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

Remove the TCWSCONS config now that zstty can do flow control on IOASIC
machines.

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.

add lpt_puc support (from files.i386)

branches: 1.155.2; 1.155.4;
* 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.

Give wskbdmap_lk201.c its own attribute.

Argh, dont reference any wscons parts in files.dec yet.

Move the dz driver to dev/dec, since it can be shared with pmax.

we need the compat_13 sys_sigreturn to do osf1 emulation
closes port-alpha/8788

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

- 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

- replace "defopt" with "defparam" for options which must take a value,
as config(8) will warn for value-less defparam options
- minor whitespace/formatting cleanup
- consolidate opt_tcp_recvspace.h and opt_tcp_sendspace.h into opt_tcp_space.h

cleanup:
options SPACE TAB
makeoptions TAB
psuedo-device TAB
remove trailing whitespace
replace multiple spaces -> tabs
options "FOO" -> options FOO
options "FOO=bar" -> options FOO=bar
options "FOO=\"bar\"" -> options FOO="\"bar\""

- pull in opt_kgdb.h where necessary
- replace opt_kgdb_machdep.h with opt_kgdb.h
- defparam opt_kgdb.h:
KGDB_DEV KGDB_DEVNAME KGDB_DEVADDR KGDB_DEVRATE KGDB_DEVMODE
- move from opt_ddbparam.h to opt_ddb.h:
DDB_FROMCONSOLE DDB_ONPANIC DDB_HISTORY_SIZE DDB_BREAK_CHAR SYMTAB_SPACE
- replace KGDBDEV with KGDB_DEV
- replace KGDBADDR with KGDB_DEVADDR
- replace KGDBMODE with KGDB_DEVMODE
- replace KGDBRATE with KGDB_DEVRATE
- use `9600' instead of `0x2580' for 9600 baud rate
- use correct quotes for options KGDB_DEVNAME="\"com\""
- use correct quotes for options KGDB_DEV="17*256+0"
- remove unnecessary dependancy on Makefile for kgdb_stub.o
- minor whitespace cleanup

Move asc_tc and asc_tcds config info to dev/tc/files.tc now that pmax
uses MI SCSI.

Hook in the `stic' device. With any luck this should be temporary.

Attach "agp" to the AMD-751 PCI host controller (Alpha UP1000/UP1100).

branches: 1.142.2; 1.142.4;
Add MX (PMAG-A), CX (PMAG-B), TX (PMAG-RO/PMAG[B]-J) TC framebuffer
supports. None of them has any acceleration capability.

Move _insque()/_remque() to libkern. Once remaining uses would
be converted to <sys/queue.h> macros, _insque()/_remque() would be eliminated
altogether.

branches: 1.140.2;
Add an e_trapsignal member to struct emul, so that emulated processes can
send the appropriate signal depending on the trap type.

Disable the optimized in4_cksum() for now -- there seem to be problems.

Optimized in4_cksum().

Add a microtime() implementation that interpolates between ticks
using the cycle counter. MP-safeness is achieved by giving each
CPU its own PCC frequency variables, and kicking the non-primary
processors via an IPI once per second.

Based on the sample code from David Mills' "A Kernel Model for
Precision Timekeeping".

o IEEE 754 floating-point completion code.
o Implement the architected FP_C "Floating Point Control Quadword"

Glue in KGDB. Needs some more work -- KGDB currently renders
DDB disabled, but it's a start.

branches: 1.134.2;
Hook in px & pxg devices.

Make sure to have sfbp.h and add sfbp* line in TCWSCONS left #ed-out.
Pointed by Matthew Jacob <mjacob@feral.com>.

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.

the tcds cards work in pmaxen. move tcds attachment to files.tc. leave asc
at tcds in files.alpha for now, and add a new `xasc at tcds' to files.pmax.
after pmax has moved fully to MI scsi (and `asc' is MI scsi), we should move
the device asc, etc., lines to files.tc.

osf1_locore.s -> osf1_sigcode.s, to match the global convention.
Add linux_syscall.c.

Do the md_syscall, __HAVE_MINIMAL_EMUL and __HAVE_SYSCALL_INTERN thangs.

split linux signal code off locore.s

lsu -> ld, by popular request.

Pull in dev/i2o/files.i2o.

Add files.ieee1394

ca -> lsu

Add code to read the EISA configuration NVRAM as set up by
an EISA Configuration Utility. Code to access this data
is forthcoming.

XXX This could probably be made MI at some point.

Uncomment the `fdc at sableio' lines.

Use dev/tc/ directory for DEC3000 Z85C30s.

Repopulate TCDS dual channel SCSI adapter to MI dev/tc, squashing
internals for better layering between TCDS DMA ASIC and ASC SCSI
controller.

For systems which have different systypes but share a common
support module, make consistent with other systems which options
you must enable for it to work. Treat ``Lynx'' (2100A_A500) like
``Sable'' (2100_A500).

branches: 1.118.2;
jensenio gets isadma_bounce attribute.

Add Jensen files glue.

Give the `sio' and `pceb' drivers the `82c693' attribute.

Typo.

Add placeholders for the support files for the Alpha Processor, Inc.
UP1000 EV6 system.

branches: 1.113.2;
Carve off the ISA configuration bits from the floppy driver. Driver is
still ISA-specific, but we can attach ISA instances with different
configuration mechanisms now.

Restore sysbeep (accidentally removed in last commit).

Use dev/isa/fd.c.

Use a software interrupt for tty input processing, not a callout.

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.)

Switch to MI sfb (PMAGB-B) TC framebuffer driver which sports faster
text rendering assisted by SFB ASIC.

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

Add options, files, etc. for the AlphaServer 2100 (Sable, Sable-Gamma).
Actual source files not yet committed. Very Soon.

lock_machdep.c is gone.

branches: 1.104.2; 1.104.8;
- Replace device node names of zskbd/zsms into lkkbd/vsms, respectively.
No functionality was changed at this moment.
- Apply recent changes in GENERIC to TCWSCONS.

Turn on EV6 bits: Tsunami and system type 6600.

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

OSF/1 locore-ish bits. right now just sigcode

branches: 1.100.2; 1.100.4; 1.100.6;
Add pcic_isapnp.

Export the `pcmciabus' attribute on the `pcic' controller.

Preliminary support for both serial consoles and kbd/display wscons
consoles for TC alphas. Based on code from Takuya Koumoto
<takuya-k@is.aist-nara.ac.jp> as well as some parts of Toru Nishimura's
and Matthias Drochner's work on pmax wscons. This relies on the
NEW_SCC_DRIVER.

Remove pciide definitions in files.alpha since they are now in files.pci

Track compat/linux/arch/* reorg.

Add files.usb. It should work.

Add linux compat includes.

Allow to use the RTC chip in a way compatible to OSF/1: use an offset
of 52 years between RTC and UNIX time.
This is controlled by "option CLOCK_COMPAT_OSF1".

Add basic interprocessor interrupt sending and receiving code. Current
IPI functions: HALT, IMB, TBIA, TBIAP.

XXX HALT is not yet implemented, it's just a stub.

Machine-dependent spin lock operations for Alpha, included if MULTIPROCESSOR
is specified.

Move if_ade* from alpha/pci/ to alpha/a12/

Make signal delivery work again.

Pull in files.mii

implemt a simple "beep" device to access the ISA speaker

Add unused zskbd and zsms entries, and ISA PnP entry.

branches: 1.85.2;
add common logout printing routine file

Take a stab at EB66 support. An EB66 is basically an EB64+ with a
21066 LCA instead of a 21064 + APECS.

Add DEC_1000 support for new Mikasa[/Pinnacle] platform.
INSTALL-FLOPPY will have to wait; it needs attention w.r.t. size.

Very preliminary support for the Tadpole/DEC AlphaBook. These are basically
AXPpci33 machines + power management and a Cirrus PCI-PCMCIA controller.

There is currently no support for the power management facilities, and
the PCI-PCMCIA controller driver needs some work, but this should boot
and run from disk.

Add DEC_1000A platform.

Hopefully avoid breaking PCMCIA on alpha.

Add support for using BWX for PCI config space and PCI i/o and mem space
on the ALCOR2 and Pyxis. BWX is enabled iff:
- It hasn't been disabled by the user (patch `cia_use_bwx' or build cia.o
with the option "CIA_USE_BWX=0"),
- it's enabled in CIA_CSR_CNFG,
- we are running on an EV5-family processor,
- BWX is in the processor's capabilities mask.

Make the TCDS attachment of the ASC driver a proper attachment (i.e.
attach it with asc_tcds).

- Change the tcds child locator from "slot" to "chip", making it look less
like a TurboChannel locator, and more like what is actually going on.
- Allow tcds and asc children of tcds to be cloned.

Add PCMCIA hooks (taken from files.i386)

Add a few files related to the Digital Personal Workstation.

Build EB64+ PCI support if DEC_EB64PLUS is configured.

"Whitespace" does not mean uncommenting a reference to a file that does not, as yet, exist in the tree

Whitespace sanity.

Add PCI IDE goop.

use mi wscons and device drivers

add Alpha 4100 support

defopt NEW_SCC_DRIVER

Remove references to "new_pmap".

Define attachments for the MI SCC driver - only hooks up to ioasic
for now.

Adjust the default and low-bound maxusers, now that the pmap can deal.

Second part of cdev_decl() migration. Declare cputype variable.
Add config info for a12 switch driver and console driver.

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

defopt for AVALON_A12 and specifiers for all the platform modules.

Switch to the MI IDE drivers.

Adjust for config changes.

Clean up the messages displayed when either platform support is not
configured into the kernel, or when the platform is not supported.
Use the defopt'ed options, rather than NDEC_... and remove the needs-flag
hack that's existed for a while.

branches: 1.58.4;
Add DDB files.

Oops, missed one.

More garbage-collection.

Pull in alpha/cpuconf.c

Garbage-collect.

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.

sort miata defs

update for moved files, placeholder for miata flag header

rewire a few file dependencies for cleanliness

define a defopt for the miata systype

branches: 1.48.2;
Create sys/dev/dec and cleanup sys/dev/tc:

* Move clockvar.h (header file for generic clock code) to sys/dev/dec.
* Move if_le_dec.c with DEC padded LANCE-dma (pmax/pmax, ioasic, vax 3400)
to sys/dev/dec. Remove from sys/dev/tc.
* Declare attribute le_dec_subr in /sys/dev/dec/files.dec,
use if_le_dec.c when it's defined.
* Move IOCTL asic declaration from pmax and Alpha MD machine
files to sys/dev/tc/files.tc.
* move TurboChannel and ioasic if_le attachments from pmax and Alpha machine
config files to /sys/dev/tc/files.tc. Add le_dec_subr attribute.
* Add if_le_dec attribute to if_le_ibus (pmax ds3100 pmax) LANCE attachment.

branches: 1.47.2;
Pull thorpej-bus-dma branch into mainline.

branches: 1.46.2;
minimal changes to make hacked wd driver work under a different name.
It is configured (in config files) as 'awdc'/'awd', but shows up as
'wdc'/'wd', so that a minimal amount of code had to be modified to make
the name change work. This is only intended to be temporary, anyway.

Add kn8ae for needing shared_intr.o

move cpu configuration tables into conf.c (cpuconf.c removed).
define CPU options and FIX_UNALIGNED_VAX_FP as header-generating options.
add pci_swiz_*_common.c when appropriate.
clean up a bit and sort more carefully.

clean up NetBSD RCS ID strings

eb64+ needs shared_intr.c

files file entry for eb64+

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.

tlsb bus and device file specs, s/21000/kn8ae. From Matt Jacob.

s/esp/asc/g, and make it carry the ncr53c9x attribute.

branches: 1.37.4;
add 'major' declaration for wd

actually, include a file for fd/fdc, so that the flag file gets generated.

define names for the ISA floppy disk controller/drives, even though they
aren't supported yet. (conf.c needs a header for them, since i already
added their device switch table entries.)

"md" driver declared in sys/conf/files now.

branches: 1.33.2;
rename: ramdisk => md

branches: 1.32.2;
update for eb164 file addition, apecs & lca bus space function split
file additions/deletions, pcppi file addition, and pckbd & pms attachment
changes. also, clean up a couple of comments.

update for VGA changes and shared_intr.c move

use the new common chained-interrupt support code.

convert cpu-dependent routine selection to use a centralized CPU switch, thus
deleting (and cleaning up) N pages of #ifdefs in machdep.c. While we're
at it, make the cpu type options generate flags, and check them instead of
kernel Makefile defines.

alphabetize and clean up machine-specific files, add eb164's machine file

there is no TC I/O space, so in the new bus.h world order there
is no tc_bus_io.c.

update for changes to config.

add specs for 'rd'

switch 'old_pmap' option to 'new_pmap', since getting the new pmap code
is going to take a while...

allow people to use the (slower) MI in_cksum.c vi 'options GENERIC_IN_CKSUM'

if OLD_PMAP defined, don't usee alpha/pmap.c and use alpha/pmap.old.c instead.

now that the bug has been fixed, we can go back to using the
Alpha-optimized in_cksum().

disable alpha-specific in_cksum.c; it seems slightly buggy

branches: 1.19.4;
Tuned in_cksum() from Matt Thomas <matt@3am-software.com>. According
to him, this implementation is approximately 50% faster than the
machine-independent portable version.

add files for the implementation of the TC 'bus' mem & I/O functions

*** empty log message ***

add support for PMAG-B Color Frame Buffer (CFB) option boards. OSF/1
doesn't support these, but they appear to work OK (with an appropriate
monitor) in my 3000/300.

add the right (raster, wsconsdev) attributes to sfb

attach le with different attributes, depending on parent (i.e. tc or
ioasic), and use those attributes to pull in appropriate files.
le_ioasic now has needs-flag, but le doesn't; the flag is only necessary
on systems configured with IOASIC-attached LANCE chips.

ioasic doesn't need a flag, and correctly conditionalize inclusion of
machines' tc configuration files.

clean up clock handling: clock drivers are now seperate from the
chip-independent clock code. 'clock' has been renamed 'mcclock' 'clock'
has been renamed 'mcclock' (since it's a driver for that particular
clock, and since eventually there may be another clock chip driver),
and now attaches via seperate match/attach functions to both TC and ISA.
This removes a whole lot of #ifdefs...

update for present alpha reality:
add drivers for ps/2-style mice (on the PC-ish alphas), and for the
workstation console glue code. also, update for config changes, etc.

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.

rename TC 'asic' to 'ioasic'

wholesale update from my NetBSD/Alpha source tree. Includes:
Support for AXPpci CPUs,
Support for AlphaStation 600 CPUs,
new boot block structure, which requires an 'installboot'
program and works a lot like the NetBSD/sparc boot blocks.

Use `files.osf1'

update for all the latest bells and whistles

update for current configuration descriptions

clean up a bit, use MI files lists. add a bunch of comments.
Also, include the EISA, ISA, and PCI files lists.

kill redundant 'cd' major number definition

fill up device switches, clean up a couple of mistakes.

preliminary Alpha support. note that NOT ALL OF THE MODIFICATIONS TO
THE REST OF THE KERNEL ARE IN THE TREE YET. Also, some of this is
_incredibly_ hack-ish, etc., but it works.