Merge thorpej-cfargs2.

branches: 1.28.8;
Merge thorpej-cfargs branch:

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

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

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

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

...and a sentinel value CFARG_EOL.

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

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

branches: 1.27.2;
malloc(9) -> kmem(9)

branches: 1.26.8;
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.

Add NWS-4000 support.

Based on nonaka@'s porting effort back in 2002.
See announcement on port-newsmips@ for more details:
http://mail-index.netbsd.org/port-newsmips/2018/10/13/msg000231.html

Account APbus interrupts by evcnt(9).

Fix news5000 panic during boot on APbus attach. PR port-newsmips/53626

Discussed with ryo@ (the original author of news5000 support).
Should be pulled up to netbsd-8.

branches: 1.22.48; 1.22.54; 1.22.56;
Merge forward matt-nb5-mips64
Adapt to new interrupt/spl framework

branches: 1.21.22; 1.21.26; 1.21.32; 1.21.34;
Split device_t/softc, with misc cleanup.

branches: 1.20.74;
merge ktrace-lwp.

constify.

Misc cleanup:
- ANSI function decls
- remove __P()
- u_intNN_t -> uintNN_t
- remove register decls
- bcopy -> memcpy, strcpy
- bzero -> memset
- bcmp -> memcmp
- use malloc(9) with M_ZERO
- some KNF
etc.

branches: 1.17.8; 1.17.10;
__KERNEL_RCSID()

branches: 1.16.2;
Rename apbus_intr_call() -> apbus_intr_dispatch().

- Prepare common structures for interrupt handler and share them between
Hyper-bus and AP-bus.
- Use LIST rather than static array for interrupt dispatcher.

DMA, not dma nor Dma.

TAB/space cleanup.

Use PAGE_SIZE rather than NBPG.

Use aprint_normal() for cfprint routines.

Use CFATTACH_DECL().

Declare all cfattach structures const.

branches: 1.8.2;
Merge the thorpej-mips-cache branch onto the trunk. This is an
overhaul of how caches are handled for NetBSD's MIPS ports.

branches: 1.7.2;
don't depend on other headers to include sys/proc.h for us.

branches: 1.6.2;
issueing -> issuing

branches: 1.5.4;
Make this stuff compile with -wstrict-prototpes -wmissing-prototypes.
More use of prototypes inside includes should be done.

branches: 1.4.2;
Move APbus dependent unmapped DMA address stuff from bus.c to apbus.c
Support DMA mapping table with NEWSMIPS_DMAMAP_MAPTBL flag for APbus
(MAPTBL is not tested yet).

Allow multiple interrupt handler on same interrupt event.
Clear interrupt mask for specified interrupt in apbus_intr_establish().
Add dma stuff; define apbus_dmamap_sync() to flush DMA write cache by
accessing the corresponding I/O port.

* Apply updates from Shimizu-san received after the initial commit.
* G/C unused.
* Many cosmetic changes.
* etc...

First cut of news5000 support.
Mostly from SHIMIZU Ryo <dejiko@di.gi.charat.org>.

Fix news5000 panic during boot on APbus attach. PR port-newsmips/53626

Discussed with ryo@ (the original author of news5000 support).
Should be pulled up to netbsd-8.

branches: 1.9.22; 1.9.28; 1.9.30;
- fix unused
- use cpu_{g,s}etmodel

branches: 1.8.38; 1.8.48; 1.8.54;
Split device_t/softc, with misc cleanup.

branches: 1.7.74;
merge ktrace-lwp.

Misc cleanup:
- ANSI function decls
- remove __P()
- u_intNN_t -> uintNN_t
- remove register decls
- bcopy -> memcpy, strcpy
- bzero -> memset
- bcmp -> memcmp
- use malloc(9) with M_ZERO
- some KNF
etc.

branches: 1.5.8; 1.5.10;
__KERNEL_RCSID()

branches: 1.4.2;
TAB/space cleanup.

Make this stuff compile with -wstrict-prototpes -wmissing-prototypes.
More use of prototypes inside includes should be done.

branches: 1.2.6;
* Apply updates from Shimizu-san received after the initial commit.
* G/C unused.
* Many cosmetic changes.
* etc...

First cut of news5000 support.
Mostly from SHIMIZU Ryo <dejiko@di.gi.charat.org>.

Add NWS-4000 support.

Based on nonaka@'s porting effort back in 2002.
See announcement on port-newsmips@ for more details:
http://mail-index.netbsd.org/port-newsmips/2018/10/13/msg000231.html

Fix news5000 panic during boot on APbus attach. PR port-newsmips/53626

Discussed with ryo@ (the original author of news5000 support).
Should be pulled up to netbsd-8.

branches: 1.9.100; 1.9.106; 1.9.108;
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: 1.8.10;
- add a declaration of apbus_wbflush() in apbusvar.h
- include <mips/locore.h> for mips3_wbflush()
- undef wbflush() macro before declaration of local inlined wbflush()

branches: 1.7.30; 1.7.32; 1.7.38;
merge ktrace-lwp.

branches: 1.6.2;
constify.

Misc cleanup:
- ANSI function decls
- remove __P()
- u_intNN_t -> uintNN_t
- remove register decls
- bcopy -> memcpy, strcpy
- bzero -> memset
- bcmp -> memcmp
- use malloc(9) with M_ZERO
- some KNF
etc.

branches: 1.4.2; 1.4.10; 1.4.12;
Rename apbus_intr_call() -> apbus_intr_dispatch().

branches: 1.3.2;
change the type of the apbus interrupt handler from void to int
for each driver to indicate the interrupt has been handled or not.
add prototype of apbus_dmatag_init() function, which allocates memory
and initialize its member including bus space handle to flush DMA write
cache. Note that the allocated pointer must be freed.

* Apply updates from Shimizu-san received after the initial commit.
* G/C unused.
* Many cosmetic changes.
* etc...

First cut of news5000 support.
Mostly from SHIMIZU Ryo <dejiko@di.gi.charat.org>.

Switch to use MI mk48txx(4) and todr(9) for MK48T02 todclocks on newsmips.

__KERNEL_RCSID()

branches: 1.4.6;
Use CFATTACH_DECL().

Declare all cfattach structures const.

branches: 1.2.6; 1.2.10; 1.2.14;
* Apply updates from Shimizu-san received after the initial commit.
* G/C unused.
* Many cosmetic changes.
* etc...

First cut of news5000 support.
Mostly from SHIMIZU Ryo <dejiko@di.gi.charat.org>.

Merge from matt-nb5-mips64
Merge mips-specific arch files.

branches: 1.12.14;
use device_lookup_private to get softc

branches: 1.11.2; 1.11.4; 1.11.6;
No need to check whole alldevs to search a specific dmac unit in dmac3_link().

branches: 1.10.2;
Split device_t/softc, with misc cleanup.

branches: 1.9.56;
Make sc_dmamap volatile for aggressive gcc4.
Also use uint32_t rather than int since it's unsigned.

branches: 1.8.4; 1.8.8;
merge ktrace-lwp.

branches: 1.7.6;
Misc cleanup:
- ANSI function decls
- remove __P()
- u_intNN_t -> uintNN_t
- remove register decls
- bcopy -> memcpy, strcpy
- bzero -> memset
- bcmp -> memcmp
- use malloc(9) with M_ZERO
- some KNF
etc.

branches: 1.6.8; 1.6.10;
__KERNEL_RCSID()

branches: 1.5.2;
Use PAGE_SIZE rather than NBPG.

Use CFATTACH_DECL().

Declare all cfattach structures const.

branches: 1.2.2;
Merge the thorpej-mips-cache branch onto the trunk. This is an
overhaul of how caches are handled for NetBSD's MIPS ports.

branches: 1.1.2; 1.1.6; 1.1.8;
NEWS5000 internal SCSI driver.

Remove leftover stuff moved to dmac3var.h.

Split device_t/softc, with misc cleanup.

branches: 1.1.2; 1.1.128;
NEWS5000 internal SCSI driver.

branches: 1.1.8;
Split device_t/softc, with misc cleanup.

sys: Drop redundant NULL check before m_freem(9)

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

Compile-tested on amd64/ALL.

Suggested by knakahara@

branches: 1.55.6;
newsmips/sn(4): rename SONIC_DEBUG to SNDEBUG for consistency.

nix this option from i386/amd64 ALL configs, it isn't used anywhere anymore.

remove global sndebug definition. looks like historical leftover replaced
by SNDEBUG definition.

newsmips: fix build with SNDEBUG option enabled.

It was broken since rev 1.21 24 years ago, and got more broken code later on:
remove leftover device_xname(sc->sc_dev) param from aprint_debug_dev in one block.
fix wrong method name devoce_xname to device_xname in second block.
rename et to eh for consistency, and define it (definition was removed in the past).
while here, improve the code with riastradh help to make it safer.

pullup to at least netbsd-10 is needed.

branches: 1.52.4;
Eliminate use of IFF_OACTIVE, take 2. (Not sure what happened there.)

Eliminate use of IFF_OACTIVE.

snstart(): Replace "IF_DEQUEUE() -> IF_PREPEND() on failure" with
"IF_POLL() -> IF_DEQUEUE() on success".

Fix if_stats access.

Trailing whitespace

Adopt <net/if_stats.h>

branches: 1.46.2;
if_flags is neither int nor short. It's unsigned short.

Use ETHER_LOCK()/ETHER_UNLOCK() for all ethernet drivers to protect ec_multi*.

Remove very old IFF_NOTRAILERS flag.

Add NWS-4000 support.

Based on nonaka@'s porting effort back in 2002.
See announcement on port-newsmips@ for more details:
http://mail-index.netbsd.org/port-newsmips/2018/10/13/msg000231.html

Rename min/max -> uimin/uimax for better honesty.

These functions are defined on unsigned int. The generic name
min/max should not silently truncate to 32 bits on 64-bit systems.
This is purely a name change -- no functional change intended.

HOWEVER! Some subsystems have

#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))

even though our standard name for that is MIN/MAX. Although these
may invite multiple evaluation bugs, these do _not_ cause integer
truncation.

To avoid `fixing' these cases, I first changed the name in libkern,
and then compile-tested every file where min/max occurred in order to
confirm that it failed -- and thus confirm that nothing shadowed
min/max -- before changing it.

I have left a handful of bootloaders that are too annoying to
compile-test, and some dead code:

cobalt ews4800mips hp300 hppa ia64 luna68k vax
acorn32/if_ie.c (not included in any kernels)
macppc/if_gm.c (superseded by gem(4))

It should be easy to fix the fallout once identified -- this way of
doing things fails safe, and the goal here, after all, is to _avoid_
silent integer truncations, not introduce them.

Maybe one day we can reintroduce min/max as type-generic things that
never silently truncate. But we should avoid doing that for a while,
so that existing code has a chance to be detected by the compiler for
conversion to uimin/uimax without changing the semantics until we can
properly audit it all. (Who knows, maybe in some cases integer
truncation is actually intended!)

branches: 1.41.2;
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.

It's not required to include net/bpfdesc.h. Remove it.

branches: 1.39.2;
Avoid memory leak in sonic_get.

If this is the first time around, top is null and nothing else will
free m.

From Ilja Van Sprundel.

branches: 1.38.6;
Apply deferred if_start to more MD drivers.

branches: 1.37.2;
Move bpf_mtap and if_ipackets++ on Rx of each driver to percpuq if_input

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

Proposed on tech-kern and tech-net

branches: 1.36.2;
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!

branches: 1.34.12; 1.34.14; 1.34.16; 1.34.20;
Fix botch on device_t/softc split inside #ifdef SNDEBUG part. from chs@

branches: 1.33.8; 1.33.14; 1.33.18; 1.33.20; 1.33.22;
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: 1.32.2; 1.32.4;
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.

*** Summary ***

When a link-layer address changes (e.g., ifconfig ex0 link
02:de:ad:be:ef:02 active), send a gratuitous ARP and/or a Neighbor
Advertisement to update the network-/link-layer address bindings
on our LAN peers.

Refuse a change of ethernet address to the address 00:00:00:00:00:00
or to any multicast/broadcast address. (Thanks matt@.)

Reorder ifnet ioctl operations so that driver ioctls may inherit
the functions of their "class"---ether_ioctl(), fddi_ioctl(), et
cetera---and the class ioctls may inherit from the generic ioctl,
ifioctl_common(), but both driver- and class-ioctls may override
the generic behavior. Make network drivers share more code.

Distinguish a "factory" link-layer address from others for the
purposes of both protecting that address from deletion and computing
EUI64.

Return consistent, appropriate error codes from network drivers.

Improve readability. KNF.

*** Details ***

In if_attach(), always initialize the interface ioctl routine,
ifnet->if_ioctl, if the driver has not already initialized it.
Delete if_ioctl == NULL tests everywhere else, because it cannot
happen.

In the ioctl routines of network interfaces, inherit common ioctl
behaviors by calling either ifioctl_common() or whichever ioctl
routine is appropriate for the class of interface---e.g., ether_ioctl()
for ethernets.

Stop (ab)using SIOCSIFADDR and start to use SIOCINITIFADDR. In
the user->kernel interface, SIOCSIFADDR's argument was an ifreq,
but on the protocol->ifnet interface, SIOCSIFADDR's argument was
an ifaddr. That was confusing, and it would work against me as I
make it possible for a network interface to overload most ioctls.
On the protocol->ifnet interface, replace SIOCSIFADDR with
SIOCINITIFADDR. In ifioctl(), return EPERM if userland tries to
invoke SIOCINITIFADDR.

In ifioctl(), give the interface the first shot at handling most
interface ioctls, and give the protocol the second shot, instead
of the other way around. Finally, let compatibility code (COMPAT_OSOCK)
take a shot.

Pull device initialization out of switch statements under
SIOCINITIFADDR. For example, pull ..._init() out of any switch
statement that looks like this:

switch (...->sa_family) {
case ...:
..._init();
...
break;
...
default:
..._init();
...
break;
}

Rewrite many if-else clauses that handle all permutations of IFF_UP
and IFF_RUNNING to use a switch statement,

switch (x & (IFF_UP|IFF_RUNNING)) {
case 0:
...
break;
case IFF_RUNNING:
...
break;
case IFF_UP:
...
break;
case IFF_UP|IFF_RUNNING:
...
break;
}

unifdef lots of code containing #ifdef FreeBSD, #ifdef NetBSD, and
#ifdef SIOCSIFMTU, especially in fwip(4) and in ndis(4).

In ipw(4), remove an if_set_sadl() call that is out of place.

In nfe(4), reuse the jumbo MTU logic in ether_ioctl().

Let ethernets register a callback for setting h/w state such as
promiscuous mode and the multicast filter in accord with a change
in the if_flags: ether_set_ifflags_cb() registers a callback that
returns ENETRESET if the caller should reset the ethernet by calling
if_init(), 0 on success, != 0 on failure. Pull common code from
ex(4), gem(4), nfe(4), sip(4), tlp(4), vge(4) into ether_ioctl(),
and register if_flags callbacks for those drivers.

Return ENOTTY instead of EINVAL for inappropriate ioctls. In
zyd(4), use ENXIO instead of ENOTTY to indicate that the device is
not any longer attached.

Add to if_set_sadl() a boolean 'factory' argument that indicates
whether a link-layer address was assigned by the factory or some
other source. In a comment, recommend using the factory address
for generating an EUI64, and update in6_get_hw_ifid() to prefer a
factory address to any other link-layer address.

Add a routing message, RTM_LLINFO_UPD, that tells protocols to
update the binding of network-layer addresses to link-layer addresses.
Implement this message in IPv4 and IPv6 by sending a gratuitous
ARP or a neighbor advertisement, respectively. Generate RTM_LLINFO_UPD
messages on a change of an interface's link-layer address.

In ether_ioctl(), do not let SIOCALIFADDR set a link-layer address
that is broadcast/multicast or equal to 00:00:00:00:00:00.

Make ether_ioctl() call ifioctl_common() to handle ioctls that it
does not understand.

In gif(4), initialize if_softc and use it, instead of assuming that
the gif_softc and ifp overlap.

Let ifioctl_common() handle SIOCGIFADDR.

Sprinkle rtcache_invariants(), which checks on DIAGNOSTIC kernels
that certain invariants on a struct route are satisfied.

In agr(4), rewrite agr_ioctl_filter() to be a bit more explicit
about the ioctls that we do not allow on an agr(4) member interface.

bzero -> memset. Delete unnecessary casts to void *. Use
sockaddr_in_init() and sockaddr_in6_init(). Compare pointers with
NULL instead of "testing truth". Replace some instances of (type
*)0 with NULL. Change some K&R prototypes to ANSI C, and join
lines.

branches: 1.30.4; 1.30.10; 1.30.12;
Split device_t/softc, with misc cleanup.

branches: 1.29.6;
Follow up the change to soackaddr_dl by using CLLADDR() and propagating
const to camentry().

branches: 1.28.2; 1.28.8;
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.

nuke unused homegrown assert() definitions

branches: 1.26.2;
Remove a now-unused local variable.

Change a bazillion occurrences of code resembling this,

error = (cmd == SIOCADDMULTI) ?
ether_addmulti(ifr, &sc->sc_ec) :
ether_delmulti(ifr, &sc->sc_ec);

if (error == ENETRESET) {

to this,

if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) {

which does the same thing.

(A bazillion is a very large number. This seems to make the i386
ALL kernel smaller by 3kB to 4kB.)

Use ifreq_getaddr() twice in es(4).

Whitespace nits.

branches: 1.24.4; 1.24.8; 1.24.10;
- add a declaration of apbus_wbflush() in apbusvar.h
- include <mips/locore.h> for mips3_wbflush()
- undef wbflush() macro before declaration of local inlined wbflush()

branches: 1.23.2; 1.23.4; 1.23.10;
Cast to char* before doing pointer arithmetic.
Also put * close to variable name.

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

branches: 1.21.4;
Make this actually build again -- cast addresses to int before
doing arithmetic on them, such as roundup().

don't use home-grown round macros

branches: 1.19.20; 1.19.22;
__asm__ -> __asm
__const__ -> const
__inline__ -> inline
__volatile__ -> volatile

merge ktrace-lwp.

branches: 1.17.2;
No 0x in front of %p...

Misc cleanup:
- ANSI function decls
- remove __P()
- u_intNN_t -> uintNN_t
- remove register decls
- bcopy -> memcpy, strcpy
- bzero -> memset
- bcmp -> memcmp
- use malloc(9) with M_ZERO
- some KNF
etc.

branches: 1.15.4; 1.15.6;
When adding/deleting multicast addresses, only whack the address
filter if the interface is marked RUNNING.

Fixes kern/27678.

branches: 1.14.4;
__KERNEL_RCSID()

branches: 1.13.2;
TAB/space cleanup.

Use PAGE_SIZE rather than NBPG.

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

Use bpf_mtap().

branches: 1.9.6;
seperate -> separate

branches: 1.8.2;
`accessible' only has one `a'.

branches: 1.7.2; 1.7.4;
Move bpfattach()/bpfdetach() calls into ether_ifattach()/ether_ifdetach().

change the type of the apbus interrupt handler from void to int
for each driver to indicate the interrupt has been handled or not.

Move the check for "promisc + unicast + not for us" into ether_input(),
and change Ethernet drivers to always pass all received frames to
ether_input() (with a few exceptions, which are documented in the
code).

remove include of <vm/vm.h>. <vm/vm.h> -> <uvm/uvm_extern.h>

Insert delay() in busy wait.

branches: 1.2.2;
Remove unnecessary debugging code. (not intended to commit)

First cut of news5000 support.
Mostly from SHIMIZU Ryo <dejiko@di.gi.charat.org>.

Add NWS-4000 support.

Based on nonaka@'s porting effort back in 2002.
See announcement on port-newsmips@ for more details:
http://mail-index.netbsd.org/port-newsmips/2018/10/13/msg000231.html

Avoid reference of APbus workarea that can't be read via kvm(3).

branches: 1.11.90; 1.11.92;
Split device_t/softc, with misc cleanup.

branches: 1.10.40;
Cast to char* before doing pointer arithmetic.
Also put * close to variable name.

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

branches: 1.8.26;
merge ktrace-lwp.

branches: 1.7.6;
Misc cleanup:
- ANSI function decls
- remove __P()
- u_intNN_t -> uintNN_t
- remove register decls
- bcopy -> memcpy, strcpy
- bzero -> memset
- bcmp -> memcmp
- use malloc(9) with M_ZERO
- some KNF
etc.

branches: 1.6.8; 1.6.10;
__KERNEL_RCSID()

branches: 1.5.6;
Use CFATTACH_DECL().

Declare all cfattach structures const.

branches: 1.3.2; 1.3.6; 1.3.10;
use macro to access interrupt mask register.

* Apply updates from Shimizu-san received after the initial commit.
* G/C unused.
* Many cosmetic changes.
* etc...

First cut of news5000 support.
Mostly from SHIMIZU Ryo <dejiko@di.gi.charat.org>.

fix various typos in comments.

branches: 1.1.6;
First cut of news5000 support.
Mostly from SHIMIZU Ryo <dejiko@di.gi.charat.org>.

s/endianess/endianness/

Add NWS-4000 support.

Based on nonaka@'s porting effort back in 2002.
See announcement on port-newsmips@ for more details:
http://mail-index.netbsd.org/port-newsmips/2018/10/13/msg000231.html

branches: 1.13.54; 1.13.56;
Merge forward matt-nb5-mips64
Adapt to new interrupt/spl framework

branches: 1.12.22; 1.12.26; 1.12.32; 1.12.34;
Split device_t/softc, with misc cleanup.

branches: 1.11.16;
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: 1.10.10;
- add a declaration of apbus_wbflush() in apbusvar.h
- include <mips/locore.h> for mips3_wbflush()
- undef wbflush() macro before declaration of local inlined wbflush()

branches: 1.9.2; 1.9.4; 1.9.10;
Cast to char* before doing pointer arithmetic.
Also put * close to variable name.

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

branches: 1.7.26;
Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

merge ktrace-lwp.

branches: 1.5.6;
Misc cleanup:
- ANSI function decls
- remove __P()
- u_intNN_t -> uintNN_t
- remove register decls
- bcopy -> memcpy, strcpy
- bzero -> memset
- bcmp -> memcmp
- use malloc(9) with M_ZERO
- some KNF
etc.

branches: 1.4.8; 1.4.10;
Declare sc_regbase as volatile, so that if_sn.c works with gcc3.

XXX We should switch to MI SONIC driver.

branches: 1.3.24;
Make this stuff compile with -wstrict-prototpes -wmissing-prototypes.
More use of prototypes inside includes should be done.

branches: 1.2.2;
change the type of the apbus interrupt handler from void to int
for each driver to indicate the interrupt has been handled or not.

First cut of news5000 support.
Mostly from SHIMIZU Ryo <dejiko@di.gi.charat.org>.

Remove unnecessary <sys/malloc.h>.

No functional change:
- Simplify MII structure initialization and reference.
- KNF

Avoid reference of APbus workarea that can't be read via kvm(3).

branches: 1.13.52; 1.13.54;
Track the changes to tulipvar.h -- use the recently introduced
tlp_chip_name() to get the chip name for aprint output.

Merge forward matt-nb5-mips64
Adapt to new interrupt/spl framework

branches: 1.11.4; 1.11.6; 1.11.8;
Split device_t/softc, use aprint_*().

branches: 1.10.8; 1.10.14; 1.10.18;
Remove clause 3 and 4 from TNF licenses

branches: 1.9.74; 1.9.76; 1.9.78;
merge ktrace-lwp.

Make tlp_idle() not be static, so that the newsmips version of the
driver can access that function again.

Approved by thorpej

branches: 1.7.6;
Misc cleanup:
- ANSI function decls
- remove __P()
- u_intNN_t -> uintNN_t
- remove register decls
- bcopy -> memcpy, strcpy
- bzero -> memset
- bcmp -> memcmp
- use malloc(9) with M_ZERO
- some KNF
etc.

branches: 1.6.8; 1.6.10;
__KERNEL_RCSID()

branches: 1.5.2;
DMA, not dma nor Dma.

Use CFATTACH_DECL().

Declare all cfattach structures const.

branches: 1.2.2;
Merge the thorpej-mips-cache branch onto the trunk. This is an
overhaul of how caches are handled for NetBSD's MIPS ports.

branches: 1.1.2; 1.1.6; 1.1.8;
Tulip driver for NWB-5852A, which is an APbus board with DEC-21140A chip.
without MII. It supports 100BaseTX only. Half duplex/Full duplex can
be specified manually, but there are no auto negotiation functionality.

XXX: It takes 34 seconds before sending/receiving packets on the wire
after initial setup. It is obviously a bug because the board
just works fine on NEWS-OS, but I cannot find what's wrong...
Once it starts working, it seems there are no problems.

Merge thorpej-cfargs2.

branches: 1.13.8;
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: 1.12.14;
Add NWS-4000 support.

Based on nonaka@'s porting effort back in 2002.
See announcement on port-newsmips@ for more details:
http://mail-index.netbsd.org/port-newsmips/2018/10/13/msg000231.html

Avoid reference of APbus workarea that can't be read via kvm(3).

branches: 1.10.36; 1.10.38;
struct device * -> device_t, use device_xname() (from chs@)

branches: 1.9.38; 1.9.48;
Split device_t/softc, with misc cleanup.

branches: 1.8.40;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.7.26;
merge ktrace-lwp.

branches: 1.6.6;
Misc cleanup:
- ANSI function decls
- remove __P()
- u_intNN_t -> uintNN_t
- remove register decls
- bcopy -> memcpy, strcpy
- bzero -> memset
- bcmp -> memcmp
- use malloc(9) with M_ZERO
- some KNF
etc.

branches: 1.5.8; 1.5.10;
__KERNEL_RCSID()

branches: 1.4.6;
Use CFATTACH_DECL().

Declare all cfattach structures const.

Convert ioctl code to use EPASSTHROUGH instead of -1 or ENOTTY for
indicating an unhandled "command". ERESTART is -1, which can lead to
confusion. ERESTART has been moved to -3 and EPASSTHROUGH has been
placed at -4. No ioctl code should now return -1 anywhere. The
ioctl() system call is now properly restartable.

branches: 1.1.2; 1.1.6; 1.1.10;
Keyboard and mouse support for news5000.

Remove clause 3 and 4 from TNF licenses

branches: 1.8.2; 1.8.4;
Fix typo.

Don't forget to initialize sc_dev.

Split device_t and softc for MI mk48txx(4) and intersil7170(4) clocks,
and other related misc cosmetics.

branches: 1.5.6;
- move todr_attach(9) calls from each MD attachment to MI mk48txx_attach()
- don't clear todr_setwen in mk48txx_attach() since it might be set by
MD attachments

branches: 1.4.50; 1.4.56; 1.4.64;
merge ktrace-lwp.

branches: 1.3.6;
Misc cleanup:
- ANSI function decls
- remove __P()
- u_intNN_t -> uintNN_t
- remove register decls
- bcopy -> memcpy, strcpy
- bzero -> memset
- bcmp -> memcmp
- use malloc(9) with M_ZERO
- some KNF
etc.

branches: 1.2.4; 1.2.10; 1.2.12;
Adapt MI mk48txx(4) changes. Tested on NWS-3470D (hb) and NWS-5000X (apbus).

Switch to use MI mk48txx(4) and todr(9) for MK48T02 todclocks on newsmips.

Merge thorpej-cfargs2.

branches: 1.13.8;
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: 1.12.14;
Avoid reference of APbus workarea that can't be read via kvm(3).

branches: 1.11.36; 1.11.38;
struct device * -> device_t, use device_xname() (from chs@)

branches: 1.10.38; 1.10.48;
Split device_t/softc, with misc cleanup.

branches: 1.9.40;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.8.4;
Tidy away wsmouse_input() abstractions and update
documentation to include the W direction.

branches: 1.7.20; 1.7.22;
merge ktrace-lwp.

branches: 1.6.6;
Misc cleanup:
- ANSI function decls
- remove __P()
- u_intNN_t -> uintNN_t
- remove register decls
- bcopy -> memcpy, strcpy
- bzero -> memset
- bcmp -> memcmp
- use malloc(9) with M_ZERO
- some KNF
etc.

branches: 1.5.8; 1.5.10;
__KERNEL_RCSID()

branches: 1.4.6;
Use CFATTACH_DECL().

Declare all cfattach structures const.

Convert ioctl code to use EPASSTHROUGH instead of -1 or ENOTTY for
indicating an unhandled "command". ERESTART is -1, which can lead to
confusion. ERESTART has been moved to -3 and EPASSTHROUGH has been
placed at -4. No ioctl code should now return -1 anywhere. The
ioctl() system call is now properly restartable.

branches: 1.1.2; 1.1.6; 1.1.10;
Keyboard and mouse support for news5000.

Merge thorpej-cfargs2.

branches: 1.21.8;
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: 1.20.14;
Add NWS-4000 support.

Based on nonaka@'s porting effort back in 2002.
See announcement on port-newsmips@ for more details:
http://mail-index.netbsd.org/port-newsmips/2018/10/13/msg000231.html

Avoid reference of APbus workarea that can't be read via kvm(3).

branches: 1.18.12; 1.18.14;
Remove extra 0x. This bug was added when replacing bitmask_snprintf(9) with
snprintb(3) (in between NetBSD 5 and 6). Old bitmask_snprint(9) didn't add
0x" automatically for hexadecimal value, so old code used it with "0x%s".

branches: 1.17.24; 1.17.42; 1.17.46; 1.17.50;
replace bitmask_snprintf(9) with snprintb(3)

branches: 1.16.4; 1.16.12;
Split device_t/softc, with misc cleanup.

branches: 1.15.40;
TRUE -> true, FALSE -> false

branches: 1.14.26;
merge ktrace-lwp.

branches: 1.13.6;
Misc cleanup:
- ANSI function decls
- remove __P()
- u_intNN_t -> uintNN_t
- remove register decls
- bcopy -> memcpy, strcpy
- bzero -> memset
- bcmp -> memcmp
- use malloc(9) with M_ZERO
- some KNF
etc.

branches: 1.12.2; 1.12.4;
Use "struct scsipi_command" in internal command structures so that
we have enough space for 16-byte CDBs.

__KERNEL_RCSID()

branches: 1.10.2;
DMA, not dma nor Dma.

Use CFATTACH_DECL().

Declare all cfattach structures const.

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

Set correct count in spifi_read_count().

branches: 1.5.4;
Give `spurious' all the `u's it needs.

branches: 1.4.2;
Avoid panic when polling is used.

branches: 1.3.2;
Cosmetic changes.

Pull up the thorpej_scsipi branch to main branch.
This is a completely rewritten scsipi_xfer execution engine, and the
associated changes to HBA drivers. Overview of changes & features:
- All xfers are queued in the mid-layer, rather than doing so in an
ad-hoc fashion in individual adapter drivers.
- Adapter/channel resource management in the mid-layer, avoids even trying
to start running an xfer if the adapter/channel doesn't have the resources.
- Better communication between the mid-layer and the adapters.
- Asynchronous event notification mechanism from adapter to mid-layer and
peripherals.
- Better peripheral queue management: freeze/thaw, sorted requeueing during
recovery, etc.
- Clean separation of peripherals, adapters, and adapter channels (no more
scsipi_link).
- Kernel thread for each scsipi_channel makes error recovery much easier
(no more dealing with interrupt context when recovering from an error).
- Mid-layer support for tagged queueing: commands can have the tag type
set explicitly, tag IDs are allocated in the mid-layer (thus eliminating
the need to use buggy tag ID allocation schemes in many adapter drivers).
- support for QUEUE FULL and CHECK CONDITION status in mid-layer; the command
will be requeued, or a REQUEST SENSE will be sent as appropriate.

Just before the merge syssrc has been tagged with thorpej_scsipi_beforemerge

branches: 1.1.2; 1.1.4;
NEWS5000 internal SCSI driver.

Use uint32_t rather than int for spifi registers.

branches: 1.1.2; 1.1.42; 1.1.56; 1.1.60;
NEWS5000 internal SCSI driver.

Merge thorpej-cfargs2.

branches: 1.20.8;
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: 1.19.2;
malloc(9) -> kmem(9)

branches: 1.18.28;
Don't include <mips/locore.h> in <machine/intr.h>, introduces circular
dependencies; instead include it in the 4 driver files that need it,
and reorder it in machdep.c

branches: 1.17.6; 1.17.10;
Add WSDISPLAYIO_LINEBYTES ioctl (for Xorg wsfb driver).

branches: 1.16.8; 1.16.18; 1.16.22;
Set RI_NO_AUTO in ri_flg if init functions are invoked from cnattach.
Tested on NWS-3470D. xafb.c for NWS-5000 is untested.

XXX: isn't it better to have failsafe default than sprinkle RI_NO_AUTO
XXX: to avoid fatal silent hangup?

branches: 1.15.4; 1.15.24; 1.15.26;
Split device_t/softc, with misc cleanup.

branches: 1.14.40;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.13.14;
Add an extra cookie to the ioctl and mmap wsdisplay accessops that points
to the screen on which they are being called. The driver cannot guess
this by itself but it is needed to implement, at least, the getwschar and
putwschar functions in the correct place. There are no functional changes
yet.

Tested on i386 (vga, vga_raster, machfb, vesafb), macppc and sparc64.
Suggested and reviewed by macallan@.

branches: 1.12.4; 1.12.6; 1.12.8; 1.12.10; 1.12.12;
Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

merge ktrace-lwp.

branches: 1.10.2;
Appease gcc -Wcast-qual.

Misc cleanup:
- ANSI function decls
- remove __P()
- u_intNN_t -> uintNN_t
- remove register decls
- bcopy -> memcpy, strcpy
- bzero -> memset
- bcmp -> memcmp
- use malloc(9) with M_ZERO
- some KNF
etc.

branches: 1.8.4; 1.8.6;
add NEWSMIPS_WSDISPLAYIO_GINFO ioctl to get frame buffer stride.

eliminate uvm_useracc() in favor of checking the return value of
copyin() or copyout().

uvm_useracc() tells us whether the mapping permissions allow access to
the desired part of an address space, and many callers assume that
this is the same as knowing whether an attempt to access that part of
the address space will succeed. however, access to user space can
fail for reasons other than insufficient permission, most notably that
paging in any non-resident data can fail due to i/o errors. most of
the callers of uvm_useracc() make the above incorrect assumption. the
rest are all misguided optimizations, which optimize for the case
where an operation will fail. we'd rather optimize for operations
succeeding, in which case we should just attempt the access and handle
failures due to insufficient permissions the same way we handle i/o
errors. since there appear to be no good uses of uvm_useracc(), we'll
just remove it.

__KERNEL_RCSID()

branches: 1.5.6;
Use CFATTACH_DECL().

Declare all cfattach structures const.

alloc_attr -> allocattr

Approved by Matthias Drochner.

branches: 1.2.4;
Convert ioctl code to use EPASSTHROUGH instead of -1 or ENOTTY for
indicating an unhandled "command". ERESTART is -1, which can lead to
confusion. ERESTART has been moved to -3 and EPASSTHROUGH has been
placed at -4. No ioctl code should now return -1 anywhere. The
ioctl() system call is now properly restartable.

branches: 1.1.2; 1.1.6; 1.1.10;
"xa" frame buffer driver.

Merge thorpej-cfargs2.

branches: 1.31.8;
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: 1.30.14;
Reorganize APbus zs(4) console handling.

- set sccport0a address on early startup and use it for cnputc and cngetc
- explicitly initialize zs chip in the cninit function so that zs console
can be used even if it is not initialized by PROM firmware

Tested on both news50000 and news4000.

Add NWS-4000 support.

Based on nonaka@'s porting effort back in 2002.
See announcement on port-newsmips@ for more details:
http://mail-index.netbsd.org/port-newsmips/2018/10/13/msg000231.html

Avoid reference of APbus workarea that can't be read via kvm(3).

branches: 1.27.58; 1.27.60;
Um, fix botch in previous.

Pull a similar fix from sparc/dev/zs.c rev 1.119:
Establish interrupt handlers with proper softc per each zs device
rather than sharing them among all zs devices and searching softc
in handlers, to avoid possible recursive lock.

branches: 1.25.20; 1.25.22;
Remove clause 3 and 4 from TNF licenses

branches: 1.24.2; 1.24.4;
Split softc and device_t for zsc(4) and its children.

XXX we should restructure MI APIs and make it really machine independent.

branches: 1.23.14;
Use the softint API.

Call zs_lock_init() to set up the chanstate's lock.

branches: 1.21.2; 1.21.18; 1.21.20; 1.21.24; 1.21.26;
Cast to char* before doing pointer arithmetic.

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

branches: 1.19.14;
Use device_unit().

branches: 1.18.4; 1.18.6; 1.18.8; 1.18.10; 1.18.12;
merge ktrace-lwp.

branches: 1.17.6;
Misc cleanup:
- ANSI function decls
- remove __P()
- u_intNN_t -> uintNN_t
- remove register decls
- bcopy -> memcpy, strcpy
- bzero -> memset
- bcmp -> memcmp
- use malloc(9) with M_ZERO
- some KNF
etc.

branches: 1.16.8; 1.16.10;
__KERNEL_RCSID()

branches: 1.15.2;
Add MI softintr(9) support with common mips/softintr.c.

Remove bogus comments.

- Move some common declarations into z8530var.h.
- Fix struct consdev properly.
- Remove register declarations.
- some more KNF.

TAB/space cleanup.

Backout previous. <sys/lock.h> is pulled from <sys/tty.h>.

MI z8530sc driver now requires <sys/lock.h>.

Provide locking required by the interrupt handlers running at IPL_SERIAL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

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: 1.5.2; 1.5.6; 1.5.10; 1.5.18;
change the type of the apbus interrupt handler from void to int
for each driver to indicate the interrupt has been handled or not.

- Implement cnbell() -- ring the console bell. The cn_bell entrypoint
is optional.
- Add cn_bell to statically allocated consdevs as appropriate.

Use software interrupt.

* Apply updates from Shimizu-san received after the initial commit.
* G/C unused.
* Many cosmetic changes.
* etc...

First cut of news5000 support.
Mostly from SHIMIZU Ryo <dejiko@di.gi.charat.org>.