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Add a driver for the Maxim DS2482-100 and DS2482-800 I2C to 1-Wire
bridge.

This chip provides a I2C device that then has 1 or 8 1-Wire busses on
the other side.  The 1-Wire buses show up as onewire(4) buses in the
NetBSD.

The chip can be used in situations where:

* You have a I2C bus extended a long distance, say with a LTC4311
  active terminator / extender or one of the differential I2C
  extenders and you would like to have a 1-Wire device on the far end
  and it isn't possible to add wiring to get to the far end.

* You are either out of GPIO pins or the GPIO pins are not reliable
  enough to use gpioow(4), but you do have working I2C.

The DS2482 does all of the 1-Wire signals in hardware and provides for
a couple of pullup options for the 1-Wire devices.

All of the functions of the DS2482-100 and -800 are supported except
for overdrive speed support.  To do this will likely require some API
changes to onewire(4).

Breakout boards exist for the DS2482 for both variants, but they
appear to be more expensive than expected.  The chip itself is quiet
cheap and wasn't all that hard to SMD solder to a board.  No other
components are really needed.

There are other members in the same family, the DS2482-101, DS2484 and
DS2485.  The DS2482-101 has a sleep pin, but from the datasheet
appears to program the same as the -100 variant.  The DS2484 has a
slightly different way to set configuration information and probably
won't quite work with the driver, but isn't far off.  The DS2485 is
very different and would require a new driver to function.

Pull up following revision(s) (requested by riastradh in ticket #939):

	distrib/sets/lists/debug/module.md.amd64: revision 1.18
	sys/modules/Makefile: revision 1.292
	lib/libc/gen/arc4random.c: revision 1.34
	lib/libc/gen/arc4random.c: revision 1.35
	lib/libc/gen/arc4random.c: revision 1.36
	lib/libc/gen/arc4random.c: revision 1.37
	sys/kern/kern_entropy.c: revision 1.70
	lib/libc/gen/arc4random.c: revision 1.38
	sys/kern/kern_entropy.c: revision 1.71
	lib/libc/gen/getentropy.3: revision 1.8
	distrib/sets/lists/modules/md.amd64: revision 1.103
	share/man/man4/rnd.4: revision 1.42
	share/man/man4/rnd.4: revision 1.44
	lib/libc/include/arc4random.h: revision 1.1
	distrib/sets/lists/man/mi: revision 1.1786
	sys/arch/i386/conf/GENERIC: revision 1.1258
	sys/modules/acpivmgenid/acpivmgenid.ioconf: revision 1.1
	sys/arch/amd64/conf/ALL: revision 1.190
	distrib/sets/lists/debug/mi: revision 1.446
	sys/arch/i386/conf/ALL: revision 1.521
	lib/libc/gen/Makefile.inc: revision 1.219
	distrib/sets/lists/debug/module.md.i386: revision 1.12
	sys/dev/acpi/acpi_vmgenid.c: revision 1.1
	sys/dev/acpi/acpi_vmgenid.c: revision 1.2
	lib/libc/include/reentrant.h: revision 1.22
	sys/arch/evbarm/conf/GENERIC64: revision 1.219
	share/man/man4/Makefile: revision 1.735
	distrib/sets/lists/modules/md.i386: revision 1.100
	distrib/sets/lists/tests/mi: revision 1.1334
	lib/libc/gen/arc4random.3: revision 1.22
	sys/dev/acpi/files.acpi: revision 1.133
	lib/libc/gen/arc4random.3: revision 1.23
	tests/lib/libc/gen/t_arc4random.c: revision 1.1
	sys/sys/entropy.h: revision 1.6
	sys/arch/amd64/conf/GENERIC: revision 1.614
	sys/modules/acpivmgenid/Makefile: revision 1.1
	share/man/man4/acpivmgenid.4: revision 1.1
	lib/libc/gen/Makefile.inc: revision 1.220
	tests/lib/libc/gen/Makefile: revision 1.56
	share/man/man4/acpivmgenid.4: revision 1.2
	share/man/man4/acpivmgenid.4: revision 1.3

	(all via patch)

Catch up with all the lint warnings since exit on warning was disabled.

Disable 'missing header declaration' and 'nested extern' warnings for now.
acpivmgenid(4): New driver for virtual machine generation ID.

Added to amd64/ALL and i386/ALL kernel configurations, and made
available as a loadable module acpivmgenid.kmod on x86, for now.
TBD: Add to all ACPI-supporting GENERIC kernels.
PR kern/58632: getentropy(2) and arc4random(3) do not reseed on VM
fork

entropy(9): Factor out subroutines to reset and gather entropy.
`Reset' means we keep the data in the pool, but assume it had zero
entropy.  `Gather' means we request samples from all on-demand
sources and wait for the synchronous ones to complete.

No functional change intended, other than to expose new symbols --
just preparation to expose these to acpivmgenid(4), so it can use
these when the VM host notifies us that we, the guest, have been
cloned.
PR kern/58632: getentropy(2) and arc4random(3) do not reseed on VM
fork

acpivmgenid(4): Reset and gather entropy on VM clone notification.
PR kern/58632: getentropy(2) and arc4random(3) do not reseed on VM
fork

arc4random(3): Reseed if system entropy epoch changes.
This can happen, for example, if the system is a VM instance, and the
VM is cloned.

This incurs the cost of a system call on every arc4random call, which
is unfortunate, but
1. we don't currently have a (machine-independent) mechanism for
   exposing a read-only page to userland shared by the kernel to
   enable a cheaper access path to the entropy epoch; and
2. the algorithm here -- a simple application of ChaCha -- is likely
   also a bottleneck and could be much cheaper by
   (a) using sys/crypto/chacha for machine-dependent vectorized
       ChaCha code, and
   (b) filling a buffer (somewhere between a cipher block and a page)
       in a batch at a time, instead of running ChaCha to generate
       only 32 bytes at a time.
So although this might be a performance hit, the security benefit is
worthwhile and we have a clear path to do better than reversing the
performance hit later.
PR kern/58632: getentropy(2) and arc4random(3) do not reseed on VM
fork

acpivmgenid(4): Nix BUGS that have been squashed.
Reference kern.entropy.epoch for the remaining bug (which is a
performance issue, not a security issue).
PR kern/58632: getentropy(2) and arc4random(3) do not reseed on VM
fork

entropy(9): Allow unprivileged reads of sysctl kern.entropy.epoch.

Applications need this in order to know when to reseed.  (We should
also expose it through a page shared read-only with userland for
cheaper access, but until we do, let's let applications get at it
through sysctl.)
PR kern/58632: getentropy(2) and arc4random(3) do not reseed on VM
fork

arc4random.c: Fix test program.

This isn't wired up anywhere, but let's reduce the bitrot.  It was
helpful in reminding me that kern.entropy.epoch was, for reasons I
can't remember, restricted to privileged access.
PR kern/58632: getentropy(2) and arc4random(3) do not reseed on VM
fork

amd64, evbarm, i386: Add acpivmgenid(4) to GENERIC.
PR kern/58632: getentropy(2) and arc4random(3) do not reseed on VM
fork

rnd(4): Document kern.entropy.epoch is unprivileged and elaborate.
Cross-reference acpivmgenid(4).
PR kern/58632: getentropy(2) and arc4random(3) do not reseed on VM
fork

arc4random(3): Note that arc4random respects kern.entropy.epoch.
PR kern/58632: getentropy(2) and arc4random(3) do not reseed on VM
fork
Add debug info for new acpivmgenid module

arc4random(3): Add automatic tests.

This verifies that:
- arc4random zeroes its state and reseeds itself on fork
- arc4random reseeds itself on entropy consolidation (e.g., VM clone)
- arc4random falls back to global state if it can't allocate local
  state because address space limits cause mmap to fail

NOTE: This adds a new libc symbol __arc4random_global, but it's in
the reserved namespace and only used by t_arc4random, so no libc
minor bump.
PR kern/58632: getentropy(2) and arc4random(3) do not reseed on VM
fork

getentropy(3): Note intent to reseed on VM clone, and caveats.

Tidy markup and pacify some mandoc -Tlint complaints while here.
PR kern/58632: getentropy(2) and arc4random(3) do not reseed on VM
fork

Bump dates on man pages recently updated to mention VM clones.
PR kern/58632: getentropy(2) and arc4random(3) do not reseed on VM
fork

arc4random(3): Pacify some of lint's complaints.
PR kern/58632: getentropy(2) and arc4random(3) do not reseed on VM
fork

arc4random: suppress another lint warning

Pull up following revision(s) (requested by riastradh in ticket #936):

	sys/dev/acpi/apei_einjvar.h: revision 1.1
	sys/dev/acpi/apei_cper.h: revision 1.2
	distrib/sets/lists/debug/module.md.i386: revision 1.9
	sys/dev/acpi/apei_hest.c: revision 1.1
	sys/modules/apei/Makefile: revision 1.1
	sys/dev/acpi/apei_hest.c: revision 1.2
	distrib/sets/lists/modules/md.amd64: revision 1.101
	sys/dev/acpi/apei_hest.c: revision 1.3
	distrib/sets/lists/modules/md.amd64: revision 1.102
	sys/modules/apei/apei.ioconf: revision 1.1
	sys/dev/acpi/apei_bert.c: revision 1.1
	distrib/sets/lists/man/mi: revision 1.1785
	sys/dev/acpi/apei_bertvar.h: revision 1.1
	sys/dev/acpi/apei.c: revision 1.1
	sys/dev/acpi/apei.c: revision 1.2
	sys/dev/acpi/apei.c: revision 1.3
	sys/modules/Makefile: revision 1.283
	sys/modules/Makefile: revision 1.284
	sys/dev/acpi/apei_reg.c: revision 1.1
	sys/dev/acpi/apei_hestvar.h: revision 1.1
	distrib/sets/lists/debug/module.md.i386: revision 1.10
	sys/dev/acpi/apei_reg.c: revision 1.2
	sys/dev/acpi/apei_reg.c: revision 1.3
	sys/dev/acpi/apei_reg.h: revision 1.1
	sys/dev/acpi/apei_reg.h: revision 1.2
	sys/dev/acpi/apei_reg.h: revision 1.3
	sys/dev/acpi/acpi_hed.c: revision 1.1
	sys/dev/acpi/apei_einj.c: revision 1.1
	sys/dev/acpi/apeivar.h: revision 1.1
	sys/dev/acpi/apei_einj.c: revision 1.2
	sys/dev/acpi/apei_einj.c: revision 1.3
	sys/dev/acpi/apei_einj.c: revision 1.4
	sys/dev/acpi/apei_einj.c: revision 1.5
	share/man/man4/Makefile: revision 1.734
	sys/dev/acpi/apei_einj.c: revision 1.6
	sys/dev/acpi/apei_einj.c: revision 1.7
	sys/dev/acpi/files.acpi: revision 1.131
	sys/dev/acpi/files.acpi: revision 1.132
	sys/dev/acpi/apei_interp.c: revision 1.1
	sys/dev/acpi/apei_interp.c: revision 1.2
	share/man/man4/acpihed.4: revision 1.1
	sys/dev/acpi/apei_mapreg.c: revision 1.1
	sys/dev/acpi/apei_interp.c: revision 1.3
	share/man/man4/acpihed.4: revision 1.2
	distrib/sets/lists/modules/md.i386: revision 1.98
	sys/dev/acpi/apei_mapreg.c: revision 1.2
	sys/dev/acpi/apei_interp.h: revision 1.1
	sys/dev/acpi/apei_interp.c: revision 1.4
	distrib/sets/lists/modules/md.i386: revision 1.99
	sys/modules/acpihed/Makefile: revision 1.1
	sys/dev/acpi/apei_mapreg.c: revision 1.3
	sys/dev/acpi/apei_interp.h: revision 1.2
	sys/arch/amd64/conf/ALL: revision 1.185
	sys/dev/acpi/apei_mapreg.h: revision 1.1
	sys/dev/acpi/apei_mapreg.c: revision 1.4
	sys/arch/amd64/conf/ALL: revision 1.186
	sys/dev/acpi/apei_erstvar.h: revision 1.1
	sys/dev/acpi/apei_erst.c: revision 1.1
	sys/dev/acpi/apei_erst.c: revision 1.2
	sys/dev/acpi/apei_erst.c: revision 1.3
	sys/arch/i386/conf/ALL: revision 1.516
	share/man/man4/apei.4: revision 1.1
	sys/arch/i386/conf/ALL: revision 1.517
	share/man/man4/apei.4: revision 1.2
	distrib/sets/lists/debug/module.md.amd64: revision 1.15
	sys/modules/acpihed/acpihed.ioconf: revision 1.1
	sys/dev/acpi/apei_hed.h: revision 1.1
	distrib/sets/lists/debug/module.md.amd64: revision 1.16
	sys/dev/acpi/apei_cper.h: revision 1.1

	(all via patch)

apei(4): New driver for ACPI Platform Error Interfaces.

For now it is wired up only in x86 ALL kernels, and built as a module
for x86 and Arm.  Once it gets a little more testing on machines with
APEI, I would like to flip it on by default.
PR kern/58046

apei(4): Pacify -Wsign-compare.
Assert that the parsing made forward progress too while here.
PR kern/58046

apei(4): Tweak some comments about the APEI interpreter language.
No functional change intended.
PR kern/58046

apei(4): Fix parsing checks for TRIGGER_ERROR action table.
The TableSize is size of the header plus the body, not just the body.
PR kern/58046
apei(4): Note some TODOs for EINJ and HEST.
No functional change intended, comments only.
PR kern/58046

acpihed(4): New driver for PNP0C33 to notify apei(4).
PNP0C33 denotes the ACPI Hardware Error Device, which exists only to
be a vector for event notifications.
PR kern/58046

acpihed(4): fix name in Dt, use Ql
apei(4): Plug memory leak on teardown of instruction interpreter.
PR kern/58046
apei(4): Fix indexing of multi-unit register access.
PR kern/58046

apei(4): Fix register chunk counting.
Now it will actually read and write the registers!
Have been updating and reloading the wrong module to test this, oops.
PR kern/58046

apei(4): Allow pre-mapping I/O registers too.
PR kern/58046

apei(4): Pre-map registers when compiling interpreter.
This way we don't have to worry about mapping them in nasty contexts
where access to uvm_km_alloc may not be allowed.  Paves the way to
use ERST for saving dmesg on crash.
Exception: ACPI_ERST_MOVE_DATA still needs to do AcpiOsMapMemory.
We'll need to reserve a couple pages to avoid that.
PR kern/58046

apei(4): Simplify EINJ/ERST register access now that it's pre-mapped.
PR kern/58046
apei(4): Make sure to initialize *fatalp in apei_gesb_report.
PR kern/58046

apei: fix typos in comments

apei: fix typos in comments and snprintb bitfmt

apei(4): Fix uninitialized stack access in error branch.
PR kern/58046

apei(4), acpihed(4): Wire up man pages to build.
PR kern/58046: Missing APEI (ACPI Platform Error Interface) support

Pull up following revision(s) (requested by rin in ticket #840):

	sys/modules/Makefile: revision 1.282

skip this subdir for "make includes".
it's excessively slow and does nothing (nor should it.)

acpivmgenid(4): New driver for virtual machine generation ID.

Added to amd64/ALL and i386/ALL kernel configurations, and made
available as a loadable module acpivmgenid.kmod on x86, for now.

TBD: Add to all ACPI-supporting GENERIC kernels.

PR kern/58632: getentropy(2) and arc4random(3) do not reseed on VM
fork

Pull up following revision(s) (requested by rin in ticket #765):

	sys/modules/Makefile: revision 1.291
	distrib/sets/lists/modules/mi: revision 1.160
	distrib/sets/lists/debug/module.mi: revision 1.27

modules: Build `ipl` module only if MKIPFILTER is enabled

modules: Build `ipl` module only if MKIPFILTER is enabled

Oooppss remove some local change that was accidentally committed

Don't build the compat_110 module yet - there's no release_110  with which
we can be compatable.

sys/modules: Don't make compat_110.

Eventually we'll need this but it doesn't make sense until 11.0 is
released.

version dup3

port-arm/58194: Resurrect vmt(4) from bitrot

On this architecture vmt(4) used to search for a node "/hypervisor" in the
FDT and probed the VMware hypervisor call only when the node was
found. However, things appear to have changed and VMware no longer provides
the FDT node.

Since vmt(4) doesn't actually need to read anything from FDT, and the
hypervisor call logically resides in virtual CPUs themselves, it would be
better to attach it directly to cpu, just like how it's probed on x86.

Pull up following revision(s) (requested by riastradh in ticket #655):

	sys/modules/Makefile: revision 1.285
	share/mk/bsd.own.mk: revision 1.1365
	share/mk/bsd.own.mk: revision 1.1366
	sys/arch/aarch64/include/sljit_machdep.h: revision 1.4
	sys/external/bsd/sljit/dist/sljit_src/sljitNativeARM_64.c: revision 1.5
	(all via patch)

sljit: Pacify -Wsign-compare.

If these sizes are negative, we're probably in trouble anyway, so
assert nonnegative here.
Needed to resolve PR 58103.

bsd.own.mk: Enable MKLSJIT on aarch64.

Make sure there's only one copy of the conditional, in bsd.own.mk;
just make sys/modules/Makefile conditional on MKSLJIT so we don't
have to keep these in sync.

As a workaround for PR 58106, tweak the conditional definition of
SLJIT_CACHE_FLUSH to use cpu_icache_sync_range only in _HARDKERNEL,
and use __builtin___clear_cache in userland and in rump kernels.

PR 58103: bpfjit.kmod is not built on aarch64
bsd.own.mk: No need for MKSLJIT to be set differently from others.
- Use ?=, not =, so mk.conf setting wins.
- Write out per-architecture tabular settings, not a conditional.
- Add comments for the architectures that look like they should have
  sljit but don't.  (XXX Missing comments about powerpc and mips --
  not sure why, is this because modules don't yet work on those
  architectures, or what?)

Tidying for PR 58103: bpfjit.kmod is not built on aarch64.

Pull up following revision(s) (requested by riastradh in ticket #655):

	sys/modules/Makefile: revision 1.285
	share/mk/bsd.own.mk: revision 1.1365
	share/mk/bsd.own.mk: revision 1.1366
	sys/arch/aarch64/include/sljit_machdep.h: revision 1.4
	sys/external/bsd/sljit/dist/sljit_src/sljitNativeARM_64.c: revision 1.5

sljit: Pacify -Wsign-compare.

If these sizes are negative, we're probably in trouble anyway, so
assert nonnegative here.
Needed to resolve PR 58103.

bsd.own.mk: Enable MKLSJIT on aarch64.

Make sure there's only one copy of the conditional, in bsd.own.mk;
just make sys/modules/Makefile conditional on MKSLJIT so we don't
have to keep these in sync.

As a workaround for PR 58106, tweak the conditional definition of
SLJIT_CACHE_FLUSH to use cpu_icache_sync_range only in _HARDKERNEL,
and use __builtin___clear_cache in userland and in rump kernels.

PR 58103: bpfjit.kmod is not built on aarch64
bsd.own.mk: No need for MKSLJIT to be set differently from others.
- Use ?=, not =, so mk.conf setting wins.
- Write out per-architecture tabular settings, not a conditional.
- Add comments for the architectures that look like they should have
  sljit but don't.  (XXX Missing comments about powerpc and mips --
  not sure why, is this because modules don't yet work on those
  architectures, or what?)

Tidying for PR 58103: bpfjit.kmod is not built on aarch64.

bsd.own.mk: Enable MKLSJIT on aarch64.

Make sure there's only one copy of the conditional, in bsd.own.mk;
just make sys/modules/Makefile conditional on MKSLJIT so we don't
have to keep these in sync.

As a workaround for PR 58106, tweak the conditional definition of
SLJIT_CACHE_FLUSH to use cpu_icache_sync_range only in _HARDKERNEL,
and use __builtin___clear_cache in userland and in rump kernels.

PR 58103: bpfjit.kmod is not built on aarch64

acpihed(4): New driver for PNP0C33 to notify apei(4).

PNP0C33 denotes the ACPI Hardware Error Device, which exists only to
be a vector for event notifications.

PR kern/58046

apei(4): New driver for ACPI Platform Error Interfaces.

For now it is wired up only in x86 ALL kernels, and built as a module
for x86 and Arm.  Once it gets a little more testing on machines with
APEI, I would like to flip it on by default.

PR kern/58046

skip this subdir for "make includes".

it's excessively slow and does nothing (nor should it.)

Pull up following revision(s) (requested by pgoyette in ticket #521):

	distrib/sets/lists/debug/module.md.i386: revision 1.8
	sys/modules/Makefile: revision 1.281
	distrib/sets/lists/modules/md.i386: revision 1.97

Unhook radeondrm module from the build; it doesn't work, and
it's just tempting someone to try it.  Leave the files around
in case someone wants to pursue making this work.

Should address kern/57793

XXX Related modules from the same legacy era should probably be
XXX removed, too, but so far only radeondrm has been reported
XXX as an issue.  Kep an eye out for sisdrm, savagedrm, tdfxdrm,
XXX and r128drm.

Unhook radeondrm module from the build; it doesn't work, and
it's just tempting someone to try it.  Leave the files around
in case someone wants to pursue making this work.

Should address kern/57793

XXX Related modules from the same legacy era should probably be
XXX removed, too, but so far only radeondrm has been reported
XXX as an issue.  Kep an eye out for sisdrm, savagedrm, tdfxdrm,
XXX and r128drm.

make owtemp a module

Pull up following revision(s) (requested by andvar in ticket #329):

	distrib/sets/lists/modules/md.amd64: revision 1.100
	sys/external/bsd/drm2/dist/include/drm/drm_pciids.h: revision 1.5
	sys/arch/amd64/conf/GENERIC: revision 1.605
	sys/modules/Makefile: revision 1.279
	distrib/sets/lists/debug/module.md.amd64: revision 1.14

viadrmums(4): build legacy VIA DRM UMS driver module for amd64.

This driver is not built-in by default, thus loadable module can help (un)lucky
owners of 64-bit capable VIA (Nano/Eden) systems or early AMD/Intel systems
with some VIA chipsets, which include VIA integrated graphics.

I also boldly added product IDs for few later models from VX8xx/VX9xx chipsets
without 3D support (DX9_0) to "expand" the driver support to more systems.

Tested successfully basic functionality on VX800, and partially successfully
on VX900 (on VX900 Xorg failed to initialize due to openchrome related issues,
viadrmums attaches and it is by used the driver).

Didn't test on VX855, I don't have one.

viadrmums(4): build legacy VIA DRM UMS driver module for amd64.

This driver is not built-in by default, thus loadable module can help (un)lucky
owners of 64-bit capable VIA (Nano/Eden) systems or early AMD/Intel systems
with some VIA chipsets, which include VIA integrated graphics.
I also boldly added product IDs for few later models from VX8xx/VX9xx chipsets
without 3D support (DX9_0) to "expand" the driver support to more systems.
Tested successfully basic functionality on VX800, and partially successfully
on VX900 (on VX900 Xorg failed to initialize due to openchrome related issues,
viadrmums attaches and it is by used the driver).
Didn't test on VX855, I don't have one.

Pull up to netbsd-10 is needed.

RISC-V support that works on QEMU with a single hart.

Thanks for Simon Burge for plic(4).

sys/modules/Makefile: Use MACHINE_CPU, not MACHINE_ARCH, for aarch64.

This way it covers both little-endian and big-endian.

aarch64: Build drm modules.

Create compat_100 module infrastructure now that we have branched
for NetBSD-10

Split the BMP280 / BME280 driver into common code and create I2C and
SPI attachments.

A driver for the Bosch BMP280 / BME280 temperature, humidity and
atmospheric pressure sensor.  This is an inexpensive to moderately
expensive chip available from a large number of places.  The driver
supports all aspects of the two chips, except for the repeating read
mode which would allow for sub-second queries, such as fall detection
or perhaps even as an altimeter.  This driver also only supports the
I2C interface and not the SPI interface.

The BME280, the one with humidity, is not fully tested at this point,
awaiting upon a breakout board and may not show proper humidity.

A driver for the Aosong AHT20 temperature and humidity sensor.  While
slow for an I2C sensor it is inexpensive and should work well enough
in most indoor conditions.  All features of the chip are supported.

Move emuxki from i386/amd64 specific modules to attachment specific
modules (effectively disabling it for the build for now, as it needs
setlist fixes and breaks the build).

emuxki(4): allow building as a module

Tested on NetBSD/amd64 with a Sound Blaster Live! Value (CT4870)

Note that this required setting outputs.master to the maximum value
allowed (255) to get sound out, and then cranking the volume pretty
high.

Additional sound cards sponsored by the NetBSD Foundation; thanks!

drm: Hook up the drmkms modules to the build.

Enable amdgpu module & firmware on x86

Make it easier to test this one out, add `load amdgpu` before boot netbsd.

XXX there should probably be a drm block in sys/modules/Makefile which
includes aarch64.

drm: Modularize ttm.

Combine the midi and sequencer modules into a single midi_seq module
to avoid a circular dependency as noted in kern/56772.  Retain minimal
modules of the original names to accomodate auto-loading upon access
to the /dev/xxx nodes.

Split some common stuff into scsi_subr module.  This enables loading
of the iscsi module whether or not there are any scsi things built
into the kernel.

Addresses the iscsi portion of kern/56772

Create a loaable adiantum module, and make cgd require it.

This enablees use of a loadable cgd module, rather thtan requiring
it to be built-in.

Partially resolves kern/56772

Split i2c_subr.c into a separate module rather than including it in
the iic module.  There are valid configurations where i2c_subr code
can be both built-in and part of a loaded module (eg, piixpm is in
the kernel, but the iic module is loaded later).  This causes the
in-kernel linker to detect a duplicate symbol.

A driver and user land utility for the Sparkfun Serial Controlled Motor
Driver module as illustrated here:

https://www.sparkfun.com/products/13911

A SCMD module is a ARM SOC simular to a Arduino in front of a motor
driver chip.  The single SCMD module can control two motors and up to
16 additional modules can be chained together using an internal I2C
bus.  One can interface with the SCMD using tty uart commands, SPI or
I2C.  The driver in this commit adds a kernel driver for the I2C and
SPI interfaces.  The command line utility provides a set of
convenience commands that support most of the functions of the SCMD
and is able to use the tty uart mode, SPI user land or the included
kernel driver in a uniform manor.

The use of the SCMD module is mostly for small robots and the like,
but it can control anything that is controllable by voltage.

add support COMPAT_LINUX32 for aarch64

Driver for the Sensirion SHT30/SHT31/SHT35 temperature and humidity
sensor such as:

https://www.adafruit.com/product/2857

This is a higher priced sensor with a lot of features, including the
ability to do sub-second periodic updates.  The driver supports
everything about the sensor except for the alert pin.

A driver for the Sensirion SGP40 MOx gas sensor.  An example of this
chip from Adafruit is:

https://www.adafruit.com/product/4829

This is a moderately priced gas sensor that can detect volatile
organic compounds in the air.  The driver uses the 3-clause BSD
licensed VOC algorithm provided by Sensirion to turn the raw sensor
metric into a VOC index which can indicate the quality of the air in a
particular indoor environment.  All published functions of the chip
are supported and one unpublished feature.

Modularize compat_linux(8) for aarch64.

A driver for the Sensirion SHT40/SHT41/SHT45 temperature and humidity
sensor.  An example of this chip is:

https://www.adafruit.com/product/4885

This is a lower cost chip that provides higher then usual precision
according to the data sheet.  This driver supports all of the published
functions that the chip has.

Disable drmkms module builds.

They haven't been functional (and won't be before fixing genfb abi).
In a new drm update, we haven't prioritized fixing the build either.

Build and install the if_run module.  run(4) is not necessarily included
in all GENERIC kernels (as reported on libera IRC).

Fix broken name

s/blake2s/blakes2s/ to match the directory that exists

modules for blake2s libsodium and if_wg

fix various typos in compatibility, mainly in comments.

Sync w/ HEAD.

sync with head

Add a new link-aggregation pseudo interface named lagg(4)

 - FreeBSD's lagg(4) based implementation
 - MP-safe and MP-scalable

Sync with HEAD.

Sync with HEAD.

don't restrict pad module to i386 and amd64.

- module build tested on amiga, vax, i386, amd64, evbarm.
- build.sh release tested on i386.
- pad module functionality tested on aarch64.

Sync w/ HEAD.

Separate the compat_netbsd32_coredump from the compat_netbsd32 and
coredump modules, into its own module.

Welcome to 7.99.75 !!!

modularize, and fix build error

Add HAVE_NVMM and use it to control the build of NVMM related components.
Defined to "yes" on amd64, "no" everywhere else.

Added iavf(4) that is based on OpenBSD's iavf(4) implementation

reviewed by msaitoh@n.o and knakahara@n.o

Mostly merge changes from HEAD upto 20200411

Merge changes from current as of 20200406

remove SMBFS and nsmb(4) - kernel part

it's unmaintained and supports only obsolete SMB1

Split out the quota code from the rest of compat_netbsd32 module.  This
allows loading of compat_netbsd32 on kernels that don't have ``options
QUOTA'' enabled.

Fixup the evbarm PCI modules

Sync with head.

Disable hifn again

Group some PCI only modules together and only build them on a subset of
platforms.  The list is not complete.

Make ixl(4) be able to build as a module

Retire azalia(4).

Sync with head.

Split the compat_50 module into two, separating the QUOTA-related
stuff from the rest of the module.  This allows loading of the
(main) compat_50 module on kernels that don't include ``options
QUOTA''.

Welcome to 9.99.40 !

Addresses PR kern/54875

Remove filemon(4).

Discussed on tech-kern:
https://mail-index.NetBSD.org/tech-kern/2020/01/13/msg025938.html

This was never (intentionally) enabled by default, and the design has
some shortcomings.  You can get mostly the same results with ktrace,
as in usr.bin/make/filemon/filemon_ktrace.c which is now used instead
of filemon for make's meta mode.

If applications require higher performance than ktrace, or nesting
that ktrace doesn't support, we might consider adding something back
into the vfs system calls themselves, without hijacking the syscall
table.  (Might want a more reliable output format too, e.g. one that
can handle newlines in file names.)

Remove the strip(4) - Starmode Radio IP - pseudo-device driver.  It is
long since obsolete.

Add module build for aq(4)

Revert the removal of filemon.

Retire filemon, discussed on tech-kern@.

Ported driver for Intel Ethernet 700 series

reviewed by msaitoh and knakahara

Continue to build the filemon module, but don't install it.  Hopefully
this will help us detect any additional bit-rot that might occur.

XXX It might be a good idea to modify the file permissions on /dev/filemon
XXX to prevent auto-loading of the driver module by non-privileged users.

Disable filemon.

It isn't suited for general use (that is, it poses security risks),
but the existence of the module means it is auto-loaded when /dev/filemon
is opened, which can be done by any user.

Thanks Ilja van Sprundel for the heads up.

Implement a front-end driver of virtio-9p called vio9p

In conjunction with mount_9p, it enables a NetBSD system running as a VM guest
to mount an exported filesystem by the host via virtio-9p.  It exports a 9p
end-point of virtio-9p via a character device file for mount_9p.

Reviewed by yamaguchi@

Add a new member to struct vfsstat and grow the unused members
The new member is caled f_mntfromlabel and it is the dkw_wname
of the corresponding wedge. This is now used by df -W to display
the mountpoint name as NAME=

enable building modules for if_aue(4), if_cdce(4), if_cue(4),
if_kue(4), if_upl(4), if_url(4), and if_urndis(4)

build exec_elf32 module on arm64.

Pull up following revision(s) (requested by mrg in ticket #135):

	distrib/sets/lists/comp/mi			1.2279
	distrib/sets/lists/modules/mi			1.123
	share/man/man9/Makefile				1.438
	share/man/man9/usbnet.9				1.1-1.9
	sys/dev/ic/rndisreg.h				1.3
	sys/dev/usb/TODO				1.47-1.52
	sys/dev/usb/TODO.usbmp				1.15,1.16
	sys/dev/usb/files.usb				1.157-1.167
	sys/dev/usb/if_aue.c				1.155-1.161
	sys/dev/usb/if_auereg.h				1.30-1.32
	sys/dev/usb/if_axe.c				1.103-1.119
	sys/dev/usb/if_axen.c				1.51-1.53,1.55-1.67
	sys/dev/usb/if_axenreg.h			1.15
	sys/dev/usb/if_cdce.c				1.54-1.67
	sys/dev/usb/if_cue.c				1.85,1.86
	sys/dev/usb/if_cuereg.h				1.23
	sys/dev/usb/if_kue.c				1.97-1.100
	sys/dev/usb/if_kuereg.h				1.23,1.24
	sys/dev/usb/if_mue.c				1.51-1.55
	sys/dev/usb/if_muereg.h				1.6
	sys/dev/usb/if_muevar.h				1.9
	sys/dev/usb/if_smsc.c				1.46-1.61
	sys/dev/usb/if_smscreg.h			1.6
	sys/dev/usb/if_smscvar.h			delete
	sys/dev/usb/if_udav.c				1.60-1.71
	sys/dev/usb/if_udavreg.h			1.14,1.15
	sys/dev/usb/if_upl.c				1.65,1.66
	sys/dev/usb/if_ure.c				1.15-1.31
	sys/dev/usb/if_urevar.h				1.4,1.5
	sys/dev/usb/if_url.c				1.67-1.70
	sys/dev/usb/if_urlreg.h				1.14
	sys/dev/usb/if_urndis.c				1.22-1.33
	sys/dev/usb/if_urtwn.c				1.72
	sys/dev/usb/ohci.c				1.290
	sys/dev/usb/uhub.c				1.143
	sys/dev/usb/usb.c				1.180
	sys/dev/usb/usb.h				1.118
	sys/dev/usb/usb_mem.c				1.71
	sys/dev/usb/usb_subr.c				1.238,1.239
	sys/dev/usb/usbdevs				1.772
	sys/dev/usb/usbdi.c				1.183,1.186
	sys/dev/usb/usbdi.h				1.97
	sys/dev/usb/usbdi_util.c			1.75
	sys/dev/usb/usbhist.h				1.5,1.6
	sys/dev/usb/usbnet.c				1.1-1.24
	sys/dev/usb/usbnet.h				1.1-1.14
	sys/dev/usb/usbroothub.c			1.9
	sys/dev/usb/xhci.c				1.109,1.110
	sys/modules/Makefile				1.223
	sys/modules/usbnet/Makefile			1.1

usbnet(9): Add common framework for USB network devices.
This bring various safety fixes to all updated drivers,
and includes locking clean up, detach safety when being
used or not, separate rx/tx locks to improve performance,
porting to NET_MPSAFE, many edge/error case bugs in
drivers fixed, as well as resovling PRs 54303 and 54308.
These drivers are converted: axe(4), axen(4), aue(4),
cdce(4), cue(4), kue(4), mue(4), smsc(4), udav(4),
upl(4), ure(4), url(4), and urndis(4).

Build an if_udav module (untested)

introduce a library of common code / backends to share code between
USB ethernet drivers.

usbnet.h introduces a new set of APIs to provide common solutions
for these driver features:
 - USB endpoint pipe handling
 - rx and tx chain handling
 - generic handlers or support for several struct ifnet callbacks
 - MII bus locking
 - interrupt handling
 - partial autoconf handling: much of attach, and detach/activate
   can use common versions directly.

currently, only axen(4) and cdce(4) are converted.  the reductions
in these drivers are quite significant:  if_cdce.c is reduced from
1000 lines to 320 lines, and if_axen is reduced from 1902 lines
to 1021 lines.

add a "usbnet" module and make the if_axen module depend upon it.

Split the ufs code out of the ffs module and into its own module.

Adapt chfs and ext2fs modules accordingly.

Sync with HEAD

Now that the if_srt module has a chance of working (ie, it now
actually attaches/detaches the cdevsw!), add the required srt
module to allow module autoload triggered by opening /dev/srtN

XXX As noted in the recent commit to if_srt.c, someone(tm) needs
XXX to create the /dev/srt* device nodes with major 179. :)

Add a loadable module for tap(4).

The code was already modularized, we simply didn't build the loadable
module.

Note also that since the tap(4) device can be reasonably accessed by
either creating a  device instance (using ifconfig(8)) or by opening
/dev/tap, we need to create both if_tap.kmod and tap.kmod (similar to
what is done with tun(4)).

Add ure(4): RealTek RTL8152/RTL8153 10/100/Gigabit USB Ethernet device.
Ported from OpenBSD. Support for RX/TX checksum offload added by myself.

don't assume _LP64 == supports COMPAT_NETBSD32.

this is not true for alpha, ia64 and arm32 ports, and the first two
were not building because of it, and the latter would be missing
the oabi support (likely not a big deal, but still wrong.)

add a makefile fragment that tells you if it is supported and include
it where needed to define COMPAT_NETBSD32 when building the normal
kernel (ie, modules & rump.)


fixes alpha build, probably fixes ia64 build.


XXX: still leaves some netbsd32 code in rf_netbsdkintf.c, that should
     be moved into some hooks, but first the configuration setup
     needs to be moved into a common function the netbsd32 code can
     call into, vs living in the switch case itself.

Don't include the raidframe compat code in the main raid module, the
compat code lives in their own compat_raid_xx modules, which will now
be autoloaded if needed.

While here, extract the compat_netbsd32_raid code into its own module,
too.

Welcome to 8.99.34

Merge the [pgoyette-compat] branch

Sync with HEAD

Build bpfjit and sljit modules on aarch64.

Sync with HEAD, resolve a few conflicts

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

Remove the rest of my local change that somehow snuck in to an
earlier commit.

 Remove obsolete ksem entry to prevent build break.

Include the compat_netbsd32* modules for sparc64

Their absence was noticed by martin@ when the recent libnv-related
build failure on amd64 did not affect sparc64!

Build the compat_netbsd32* modules for sparc64, too

XXX Sets lists will be updated later.

Keep only a single copy of the list of compat_netbsd32* modules.

Sync with HEAD, resolve a couple of conflicts

Add NVMM - for NetBSD Virtual Machine Monitor -, a kernel driver that
provides support for hardware-accelerated virtualization on NetBSD.

It is made of an MI frontend, to which MD backends can be plugged. One
MD backend is implemented, x86-SVM, for x86 AMD CPUs.

We install

	/usr/include/dev/nvmm/nvmm.h
	/usr/include/dev/nvmm/nvmm_ioctl.h
	/usr/include/dev/nvmm/{arch}/nvmm_{arch}.h

And the kernel module. For now, the only architecture where we do that
is amd64 (arch=x86).

NVMM is not enabled by default in amd64-GENERIC, but is instead easily
modloadable.

Sent to tech-kern@ a month ago. Validated with kASan, and optimized
with tprof.

Restore compat_netbsd32 for amd64, too.

Reenable the compat_netbsd32 module.  It is _NOT_ an all-version monolithic
module (as was compat_netbsd).

No need to declare the crypto_50 init/fini routines.  The compat_50
module no longer needs them, and they're declared static in  the
ocryptodev.c code

Split the compat_crypto_50 from the rest of the crypto module

Cleanup some stuff left over from similar changes to raid modules.

Split the raidframe compatability code out into separate modules, since
the driver is already a module.  This avoids having to pass a bunch of
function pointers as arguments to raidframe's compat_ioctl().

Don't build the "monolithic" compat_netbsd32 module, it is replaced by
the new version-specific modules.

Complete removal of the "monolithic" all-version compat_sysvipc module

Split compat_netbsd32_sysvipc into version-specific modules

Add a compat_netbsd32_16 to handle the sigcode stuff.

Add a netbsd32_compat40 module, move the 4.0 mount stuff there.

Get ready for compat_netbsd32_43 module

Add -DCOMPAT_NETBSD32 for all the version-specific modules

More compat_netbsd32_xx modules

Don't descend into the build directories for monolithic compat and
compat_sysv modules.

Add sub-dirs for the soon-to-arrive version-specific compat_netbsd32_xx
modules.

Sync with HEAD

Resolve a couple of conflicts (result of the uimin/uimax changes)

Rework PCI and AGP conditionalization.

- Push drm_pci_set_unique into driver callback.
- Eliminate drm_pci_set_unique_hook.
- Gather all drm_agp_* functions into struct drm_agp_hooks.
- Replace the nonsensical old atomic garbage by serious locking.
- Make drm_agpsupport.c its own module.
- Eliminate NDRMKMS_PCI.
- Use NAGP from "agp.h" only in drm_module.c for horrible hack.
  => See comment in file for rationale.
- Always define CONFIG_PCI=1 and CONFIG_AGP=1.
- Always go through the drm_agp_* function hooks.
- Ifdef out nouveau agp stuff that doesn't go through drm_agp_*
  for reasons that I'm too frustrated to figure out tonight.
- pci_iomap no longer automagically does agp_i810_borrow.
  => Use drm_agp_borrow instead.

Add mue(4), driver for Microchip LAN75xx/LAN78xx known as internal NIC of
Raspberry Pi 3 B+, from OpenBSD.

Tested on Raspberry Pi 3 B+ (LAN7800) and Z-TEK ZE582 (LAN7500).

* BUGS/TODO

- If the media type is set to something other than 1000baseT-FDX, data
  transmission becomes quite unstable. Also, ukphy(4) recognize 1000baseT as
  a supported media type, but it is not in fact.

- Catch up with changes made to usmsc(4) in nick-nhusb branch, i.e.,
  make the driver MP-safe.

- Support RX/VLAN/TX chekcsum offloading.

Sync with HEAD

Merge the tprof_pmi and tprof_amdpmi modules into a single tprof_x86
module.

Remove viadrm(4), superseded by viadrmums.

Aside from viadrm using older drm code, it's also dysfunctional right now.
See PR port-i386/53364.

Sync with HEAD

add virtio_pci to list of not-yet-enabled modules

Sync with HEAD

Add a 1PPS-over-GPIO driver, originally by Brad Spencer, with changes by
me to adapt to the new GPIO interrupt interface and support a wider variety
of GPIO pin configuations.

PR kern/51676

Add an example "gpioirq" driver that demonstrates interrupts on GPIO
pins.  Will be enhanced in the future to support sending events to
user space on edge-triggered interrupt events.

Based on initial work by Brad Spencer.
PR kern/51676

Split the compat_sysv module into several version-specific modules,
similar to the compat module.

Actually create the new compat_sysctl_09_43 module

First pass at compat modules for 4.3BSD, NetBSD-0.9, and NetBSD-1.0

XXX Still need to deal with the sysctl stuff and other code shared
XXX between 09 and 43

create the compat_12 module

Create the compat_util module for use by version-specific compat code.
(It's automatically included in the monolithic compat module, as well
as in kernels with built-in compat code.)

Add compat_13 module

Extract compat_14 stuff into its own module

Create and build a compat_16 module

Create and build the compat_20 module

Initial pass at a compat_30 module.

Still needs some work for dev/vnd and various dev/usb/*

Create a compat_40 module

Separate the compat_50 and compat_80 dispatching code from the main
body of raidframe, and place into the appropriate compat modules.

Enable building of the compat_80 module.

Initial pass at a COMPAT_50 module.  More to come.

Move closer to a complete compat_60 module.  All that remains is some
tty stuff and some ccd ioctl()s.

Formatting only - no functional change

Ooops - don't use SUBDIR= after the SUBDIR+= lines!

For now, disable the compat_60 module

Initial set-up for compat_60 module

Create a separate module for COMPAT_70 code only, and untangle the
70 compat code from the current.

Rename the new compat_sysv_ipc module to just compat_sysv

Split the sysv_ipc module into two pieces:  one for contemporary
SYSV* functionality, and one for compatability with previous NetBSD
versions.  No need to pull in all of compat just to have a sysv_ipc
module.

Descend into subdirectory to create the module for ichsmb(4) driver.

Remove ksem module reference

This does not exist in HEAD.

It looks like accidentally committed in:

Add new modules (for i386 and amd64 only) for the imcsmb SMBus driver.
src/sys/modules/Makefile r1.200

Add new modules (for i386 and amd64 only) for the imcsmb SMBus driver.

Pull up following revision(s) (requested by pgoyette in ticket #524):
	sys/modules/Makefile: revision 1.199
	sys/modules/amdsmn/Makefile: revision 1.1
	sys/modules/amdsmn/amdsmn.ioconf: revision 1.1
	sys/modules/amdzentemp/Makefile: revision 1.1
Create amdsmn(4) amd amdzentemp(4) modules for X86

Create amdsmn(4) amd amdzentemp(4) modules for X86

Merge autofs support from: Tomohiro Kusumi
XXX: Does not work yet

PR/52848: Brad Spencer: Add module glue for AM2315 and SI70xx drivers

Pull up following revision(s) (requested by pgoyette in ticket #436):
	distrib/sets/lists/modules/mi: revision 1.112
	sys/modules/Makefile: revision 1.196
	sys/modules/ip_ecn/Makefile: revision 1.1
	sys/modules/if_gif/Makefile: revision 1.3
	sys/net/if_gif.c: revision 1.136
	sys/netinet/ip_ecn.c: revision 1.17
Split ip_ecn code into its own module, so it can be shared between
gif(4), stf(4), and ipsec(4).  Without this, loading the if_gif
module can result in redefined global symbols if either ipsec(4) or
stf(4) but not gif(4) is built into the kernel.
Fixes PR kern/52795 (as reported by martin@ via irc).

Split ip_ecn code into its own module, so it can be shared between
gif(4), stf(4), and ipsec(4).  Without this, loading the if_gif
module can result in redefined global symbols if either ipsec(4) or
stf(4) but not gif(4) is built into the kernel.

Fixes PR kern/52795 (as reported by martin@ via irc).

XXX pullup to netbsd-8

update from HEAD

Sync with HEAD

Don't build the ibcs2 module on i386.

Don't build the svr4 module on i386.

Descend into SUBDIR to actually build the wsbell module.

Missed in previous commit - thanks kre@

Add the modules for audio, midi, and sequencer

Sync with HEAD

Sync with HEAD

Modularize ualea(4).

Unclear why we have a separate xyz.ioconf for module and XYZ.ioconf
for rump component, but at least xyz_modcmd obviates the need for
xyz_component.c (though evidently the latter could have been replaced
anyway by RUMP_COMPONENT=ioconf in the rump component Makefile).

add vioscsi to the list (disabled)

Sync with HEAD

add l2tp(4) L2TPv3 interface.

originally implemented by IIJ SEIL team.

Sync with HEAD

Sync with HEAD.  (Note that most of these changes are simply $NetBSD$
tag issues.)

Create a single combined module for spkr_pcppi and spkr_audio, and
build it for all architectures.

By doing this, we can handle pcppi, audio, or both attachments with
non-built-in modules.

XXX Still to do: the module currently cannot be unloaded, and the
XXX spkr device(s) currently cannot be detached.  (Really, two
XXX sides of the same problem.)

delete spkr_synth module

Create a new module for the synthesized speaker(4).

XXX Device module autoload (invoked when the /dev/speaker is opened, and
XXX no driver exists) will not find this module.  On i386 and amd64, the
XXX autoload will find the spkr module (spkr0 at pcppi0) and that module
XXX will be autoloaded.  For other architectures, either include the
XXX "spkr0 at audio0" in your config file, or manually load this new
XXX spkr_synth module using modload(8).

Revert to previous.  Add PCPPISPEAKER flag to fix build.

Fix building of the spkr module.  The module now is the synthesized speaker.
Reported by joerg@

Sync with HEAD

Build the newly-created bufq_* modules

Sync with HEAD

* Split sys/kern/sys_process.c into three parts:
        1 - ptrace(2) syscall for native emulation
        2 - common ptrace(2) syscall code (shared with compat_netbsd32)
        3 - support routines that are shared with PROCFS and/or KTRACE

* Add module glue for #1 and #2.  Both modules will be built-in to the
  kernel if "options PTRACE" is included in the config file (this is
  the default, defined in sys/conf/std).

* Mark the ptrace(2) syscall as modular in syscalls.master (generated
  files will be committed shortly).

* Conditionalize all remaining portions of PTRACE code on a new kernel
  option PTRACE_HOOKS.

XXX Instead of PROCFS depending on 'options PTRACE', we should probably
    just add a procfs attribute to the sys/kern/sys_process.c file's
    entry in files.kern, and add PROCFS to the "#if defineds" for
    process_domem().  It's really confusing to have two different ways
    of requiring this file.

PR kern/51514: ptrace(2) fails for 32-bit process on 64-bit kernel

Updated from the original patch in the PR by me.

Sort entries within conditional blocks

Sync with HEAD

For now, disable all the newly-created ld(4) related modules.  We need
to come up with a better way to handle attachment-specific modules, and
possibly a better directory structure for modules in general, as the
current mechanism doesn't scale.

Add module build infrastructure for ld and its attachments

make it possible to load nvme(4) as module to ease testing; currently somewhat
non-optimal, since it includes the ld(4) code also and hence requires the
kernel config to have 'no ld'

Add a dummy "tun" module, whose only job is to trigger an autoload of
required module "if_tun".  This allows access to /dev/tunN to autload
the require interface module.

XXX There's might be a better place/name for net/tun.c

add new modules

Modularize the pppoe driver

Modularize the sppp_subr stuff so it can be shared by pppoe and lmc
drivers as they get modularized.

Add modules for strip and slip

rename the ppp module so that it autoloads.

Modularize the ppp driver, and adjust dependencies of the compressor
modules.

For now, this is still included as a built-in module in GENERIC kernels.

Sync with HEAD

PR port-ia64/51261

Use exec_elf64 modules for ia64

Add and enable a new module, slcompress

This is a prerequisite to modularizing the ppp pseudo-device

Sync with HEAD

New module for ipl (aka ipfilter).

Create separate modules for i2c_bitbang and bpf_filter so these files
can be included in kernels which need them without also duplicating
them in other modules.  Removes the duplicate symbols I found which
prevented loading i2c and bpf modules after having fixed PR 45125.

Sync with HEAD (as of 26th Dec)

Descend into new raid module, and update sets lists.

Modularize drvctl(4)

Modularize the clockctl pseudo-device and link to the build.

Split out the SYSV IPC stuff into its own compat_netbsd32_sysvipc
module.  Adjust dependencies as needed.

Merge the compat_sysv module into the sysv_ipc module - it should
never have been a separate module in the first place (my bad).

Adjust dependencies as appropriate.

Ooops, remove a local change that wasn't supposed to be committed.

Create new compat_netbsd32_mqueue module, and descend into subdir to
build it.

Descend into new compat_netbsd32_nfssrv directory for new module, and
remove netbsd32_nfssvc.c from the original compat_netbsd32 module.

Actually create the wapbl module, since it works.

Sync with HEAD

Don't build compat_netbsd32 if mips64 && building mips-n32

Sync with HEAD

Add the spkr module to the build.

Descend into the examples to build them all the time.  (They will not
be installed, but we still want to make sure they build to avoid any
bit-rot).

Descend into subdir to actually build the new sysv_ipc module

Split the SYSV* compat code out into a separate compat_sysv module.

For monolithic kernels, both modules will be compiled as "built-ins",
while modular environments will be able to load the SYSVSEM, SYSVSHM,
and SYSVMSG code independant from the rest of compat.

This is a necessary precursor step to making the "STD" SYSV* code
into a separate module.

Tested in both monolithic and modular environments with no errors
seen.

Build compat_netbsd32.kmod for arm and mips64

Build the tco watchdog module

Enable build of viadrmums module, i386-only.

Hold off on building viadrmums module until it works.

Module for viadrmums.

Build modules for sysmon and its subcomponents

Add modularized swwdog driver.

Sync with HEAD

Split hdaudio and PCI attach glue. Even though the driver was written with
this separation in mind, all of the code lived in sys/dev/pci/hdaudio. Move
common parts to sys/dev/hdaudio and PCI attach glue to sys/dev/pci.

Pull up following revision(s) (requested by jmcneill in ticket #634):
	distrib/sets/lists/modules/md.amd64: revision 1.51
	distrib/sets/lists/modules/md.evbppc.powerpc: revision 1.5
	distrib/sets/lists/modules/md.i386: revision 1.55
	distrib/sets/lists/modules/mi: revision 1.71
	sys/dev/i2c/au8522.c: revision 1.7
	sys/dev/i2c/cx24227.c: revision 1.7
	sys/dev/i2c/dbcool.c: revision 1.42
	sys/dev/i2c/hytp14.c: revision 1.3
	sys/dev/i2c/i2c_exec.c: revision 1.10
	sys/dev/i2c/lg3303.c: revision 1.9
	sys/dev/i2c/mt2131.c: revision 1.5
	sys/dev/i2c/nxt2k.c: revision 1.4
	sys/dev/i2c/sdtemp.c: revision 1.24
	sys/dev/i2c/spdmem_i2c.c: revision 1.10
	sys/dev/i2c/tvpll.c: revision 1.6
	sys/dev/i2c/xc3028.c: revision 1.7
	sys/dev/i2c/xc5k.c: revision 1.6
	sys/dev/i2c/zl10353.c: revision 1.4
	sys/modules/Makefile: revision 1.143
	sys/modules/i2cexec/Makefile: revision 1.1
i2c devices don't actually have a dependency on "iic" (the bus driver)
but on "i2cexec". Create an i2cexec module (i2c_exec.c) to mirror the
dependencies in files.i2c and switch device drivers to depend on "i2cexec"
module instead.
A kernel with a USB stack and no I2C controller / bus attachment would spit
out a bunch of "WARNING: module error: can't find builtin dependency `iic'"
messages at boot. This change solves that problem.

i2c devices don't actually have a dependency on "iic" (the bus driver)
but on "i2cexec". Create an i2cexec module (i2c_exec.c) to mirror the
dependencies in files.i2c and switch device drivers to depend on "i2cexec"
module instead.

A kernel with a USB stack and no I2C controller / bus attachment would spit
out a bunch of "WARNING: module error: can't find builtin dependency `iic'"
messages at boot. This change solves that problem.

Pull up following revision(s) (requested by chs in ticket #401):
	distrib/sets/lists/modules/md.amd64: revisions 1.46, 1.47 via patch
	distrib/sets/lists/modules/md.i386: revisions 1.49, 1.50
	sys/dev/ic/pcdisplayvar.h: revision 1.20
	sys/dev/ic/vgavar.h: revision 1.32
	sys/external/bsd/drm/dist/bsd-core/drm_drv.c: revision 1.26
	sys/external/bsd/drm2/dist/drm/drm_agpsupport.c: revisions 1.5, 1.6
	sys/external/bsd/drm2/dist/drm/drm_pci.c: revisions 1.4, 1.5
	sys/external/bsd/drm2/dist/drm/drm_stub.c: revisions 1.6-1.8
	sys/external/bsd/drm2/dist/drm/i915/i915_drv.h: revision 1.11
	sys/external/bsd/drm2/dist/drm/radeon/cik.c: revision 1.3
	sys/external/bsd/drm2/dist/drm/radeon/ni.c: revision 1.3
	sys/external/bsd/drm2/dist/drm/radeon/si.c: revision 1.3
	sys/external/bsd/drm2/dist/include/drm/drmP.h: revisions 1.8, 1.9
	sys/external/bsd/drm2/dist/include/drm/drm_agpsupport.h: revisions 1.3, 1.4
	sys/external/bsd/drm2/drm/drm_drv.c: revision 1.11
	sys/external/bsd/drm2/drm/drm_module.c: revision 1.9
	sys/external/bsd/drm2/drm/drm_sysctl.c: revisions 1.1-1.4
	sys/external/bsd/drm2/drm/drm_vm.c: revision 1.7
	sys/external/bsd/drm2/drm/files.drmkms: revisions 1.8, 1.9
	sys/external/bsd/drm2/i915drm/files.i915drmkms: revision 1.9
	sys/external/bsd/drm2/i915drm/i915_module.c: revisions 1.4, 1.5
	sys/external/bsd/drm2/include/drm/drm_sysctl.h: revisions 1.1, 1.2
	sys/external/bsd/drm2/include/linux/hdmi.h: revisions 1.3-1.5
	sys/external/bsd/drm2/include/linux/module.h: revision 1.5
	sys/external/bsd/drm2/include/linux/moduleparam.h: revisions 1.3, 1.4
	sys/external/bsd/drm2/include/linux/pci.h: revision 1.11
	sys/external/bsd/drm2/linux/linux_module.c: revision 1.5
	sys/external/bsd/drm2/nouveau/files.nouveau: revision 1.4
	sys/external/bsd/drm2/nouveau/nouveau_module.c: revision 1.3
	sys/external/bsd/drm2/pci/drm_pci.c: revision 1.8
	sys/external/bsd/drm2/pci/drm_pci_module.c: revision 1.3
	sys/external/bsd/drm2/radeon/radeon_module.c: revision 1.3
	sys/external/bsd/drm2/ttm/files.ttm: revision 1.1
	sys/modules/drm2pci/Makefile: file removal
	sys/modules/drmkms/Makefile: revisions 1.4-1.7
	sys/modules/drmkms_linux/Makefile: revision 1.5
	sys/modules/drmkms_pci/Makefile: revisions 1.3, 1.4
	sys/modules/i915drmkms/Makefile: revisions 1.5-1.7
Split drm ttm config into a separate file.
--
Fix module build of drmkms_linux.
--
Remove vestigial drm2pci module, replaced by drmkms_pci.
--
fix the module class.
--
add the drmkms modules
--
make a drm_agp_destroy() function to resolve the circular dependency between
drmkms and drmkms_pci
--
finalize the idr code.
--
add drm_agp_destroy
--
fix drmkms module path for xen.
--
fix build failure.
/tmp/bracket/build/2014.11.10.22.43.46-i386/src/sys/external/bsd/drm2/include/linux/pci.h:36:20: fatal error: acpica.h: No such file or directory
--
make this work: add agpsupport and sysctl code
--
move agpsupport to drmkms to avoid circular dependencies.
--
turn on dynamic ldscript creation to handle link set symbol definitions
used in the automatic sysctl creation.
--
Add __link_set based code to automatically convert the linux module parameters
into sysctls.
--
this module needs MKLDSCRIPT too now
--
more _KERNEL_OPT
--
prettify and add to all the modules that have it.
--
fix description setting.
--
Adjust flags to allow building with clang.
--
Fix build with clang.
--
Drop casts in favour of expressions that actually give the right
pointer.
--
Move all PCI/AGP code back to drmkms_pci module where it belongs.
--
Use correct length for hdmi_infoframe_header_pack in <linux/hdmi.h>.
Fixes PR kern/49411.
--
Back out previous, fix PR kern/49411 correctly.
frame->header.length is not initialized in the vendor packet case.
Instead, make hdmi_infoframe_header_pack take the packet length and
subtract the size of the header when packing the header.
(Could make it take the payload length instead, but for callers it is
more convenient to have a name for the whole packet length.)
--
Fix bounds checking in hdmi_infoframe_header_pack (PR kern/49411).
--
Trivial build fix for no options SYSCTL_INCLUDE_DESCR case, to
avoid -Werror.
OK christos@ and riastradh@
--
fix debugging compilation (ALL kernel)
--
nouveau_nv50_fence.c needs -Wno-shadow.
--
fix a confusion between dev_t and devmajor_t, and include the primary
minor when calling makedev().

dedup and add the drmkms modules

new module

Rebase to HEAD as of a few days ago.

Revert most of rev 1.137.  Build ubsec module only for i386 and amd64 and
punt on the other arches.

Rebase.

Changes to existing files to enable building AARCH64 userland.
evbarm64-el
This is clang only.  While gcc4.8 supports aarch64, no netbsd support has
been written for aarch64 with gcc4.8.

empty() wants a variable name, not a value.  This should un-break
the arm an mips arch builds which were broken by the previous
commit.

Build ubsec(4) as a module on all arches where it was obivous how to do so.
That excludes powerpc because evppc OEA is missing definitions for
PPC_INTR_IMPL and PPC_PCI_MACHDEP_IMPL.
Adjust set lists.

Compile tested for most arches only.

sync with head.

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

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

sync with head

add HYT-221/271/939 humidity/temperature I2C sensor
extend envsys(4) framework by %rH (relative humidity)

Add hifn(4) and ubsec(4) to the NOTYET section, and note that they can
be successfully built only on architectures that have PCI.

Modularize the opencrypto components and link to the build

Create modules for software crypto components.

Re-sort in alphabetic sequence.

Modularize net/zlib so it can be used by the vnd module (and, eventually,
by an opencrypto module).

Descend into ccd

Make dksubr.c into a module, and make the cgd and dm modules depend on
it.

Now that cgd is completely modularized, descend into modules/cgd to
actually create the module.

renamed luacore to luasystm

ubsec is not a MI buildable module. disable it for now.

Build and install sljit.kmod and bpfjit.kmod iff ${MKSLJIT} != "no".

Make ubsec(4) loadable as kmod.

Build a module for usmsc(4).

linke pmf(9l) to the build

link core(9l) (docs pending) to the build

link the lua(4) module to the build

Add driver for ASIX AX88178a and AX88179 Ethernet interface.
Ported from OpenBSD.

resync from head

normali{s,z}e

new npflog driver split out of npf_ext_log.

resync with head

sync with (a bit old) head

Pull up following revision(s) (requested by rmind in ticket #745):
	distrib/sets/lists/comp/shl.mi: revision 1.241
	distrib/sets/lists/modules/mi: revision 1.49
	distrib/sets/lists/base/md.sparc64: revision 1.171
	lib/npf/ext_rndblock/npfext_rndblock.c: revision 1.1
	distrib/sets/lists/base/ad.mips64eb: revision 1.106
	distrib/sets/lists/modules/md.evbppc: revision 1.29
	sys/net/npf/npf_ext_rndblock.c: revision 1.1
	lib/npf/Makefile: revision 1.2
	sys/modules/npf_ext_rndblock/Makefile: revision 1.1
	lib/npf/ext_rndblock/Makefile: revision 1.1
	distrib/sets/lists/base/ad.mips64el: revision 1.106
	lib/npf/ext_rndblock/shlib_version: revision 1.1
	distrib/sets/lists/base/md.amd64: revision 1.182
	distrib/sets/lists/base/shl.mi: revision 1.643
	sys/net/npf/files.npf: revision 1.9
	sys/modules/Makefile: revision 1.117
Add NPF "rndblock" extension to randomly drop packets (using a random function
with a percentage or modulo operation).  This is a demo module, although it can
be used for packet loss simulation.  Example of a procedure in npf.conf:
procedure "somedrop" {
        # Drop 1.9% of the traffic
        rndblock: percentage 1.9
}

Add NPF "rndblock" extension to randomly drop packets (using a random function
with a percentage or modulo operation).  This is a demo module, although it can
be used for packet loss simulation.  Example of a procedure in npf.conf:

procedure "somedrop" {
	# Drop 1.9% of the traffic
	rndblock: percentage 1.9
}

adapt the cyclic module and profile dtrace provider to netbsd.
for now, just hook the cyclic callback into hardclock().

Resync to 2012-11-19 00:00:00 UTC

Pull up following revision(s) (requested by rmind in ticket #693):
	lib/npf/ext_normalise/shlib_version: revision 1.1
	lib/libnpf/npf.c: revision 1.13
	distrib/sets/lists/modules/mi: revision 1.48
	sys/net/npf/npf_rproc.c: revision 1.3
	sys/net/npf/npf_rproc.c: revision 1.4
	sys/modules/npf/Makefile: revision 1.11
	usr.sbin/npf/npfctl/npfctl.h: revision 1.20
	lib/npf/ext_log/npfext_log.c: revision 1.1
	lib/libnpf/npf.h: revision 1.11
	sys/net/npf/npf_inet.c: revision 1.17
	sys/net/npf/npf_log.c: file removal
	sys/net/npf/npf_handler.c: revision 1.22
	distrib/sets/lists/base/shl.mi: revision 1.636
	sys/net/npf/npf_impl.h: revision 1.23
	usr.sbin/npf/npfctl/Makefile: revision 1.8
	lib/npf/Makefile: revision 1.1
	lib/npf/ext_log/shlib_version: revision 1.1
	lib/Makefile: revision 1.189
	distrib/sets/lists/comp/shl.mi: revision 1.236
	usr.sbin/npf/npfctl/npf_build.c: revision 1.14
	distrib/sets/lists/base/mi: revision 1.1007
	usr.sbin/npf/npfctl/npf_scan.l: revision 1.6
	distrib/sets/lists/base/mi: revision 1.1009
	sys/net/npf/npf.h: revision 1.21
	lib/npf/ext_normalise/npfext_normalise.c: revision 1.1
	etc/mtree/NetBSD.dist.base: revision 1.105
	lib/libnpf/Makefile: revision 1.3
	etc/mtree/NetBSD.dist.base: revision 1.106
	usr.sbin/npf/npfctl/npf_extmod.c: revision 1.1
	sys/net/npf/npf_ctl.c: revision 1.18
	lib/npf/ext_log/Makefile: revision 1.1
	distrib/sets/lists/comp/mi: revision 1.1781
	usr.sbin/npf/npfctl/npf_var.h: revision 1.4
	sys/net/npf/npf.c: revision 1.13
	sys/modules/Makefile: revision 1.111
	sys/net/npf/npf_ext_log.c: revision 1.1
	lib/npf/Makefile.inc: revision 1.1
	sys/net/npf/npf_ext_normalise.c: revision 1.1
	sys/net/npf/files.npf: revision 1.8
	sys/rump/net/lib/libnpf/Makefile: revision 1.2
	sys/modules/npf_ext_log/Makefile: revision 1.1
	lib/npf/ext_normalise/Makefile: revision 1.1
	usr.sbin/npf/npfctl/npfctl.c: revision 1.20
	usr.sbin/npf/npfctl/npf_parse.y: revision 1.13
	sys/modules/npf_ext_normalise/Makefile: revision 1.1
Implement dynamic NPF extensions interface.  An extension consists of
dynamically loaded module (.so) supplementing npfctl(8) and a kernel
module.  Move normalisation and logging functionality into their own
extensions.  More improvements to come.
Add /usr/lib/npf.
Add ./usr/libdata/debug/usr/lib/npf for rmind
Fix MKDEBUG set lists
ext_ops does not change during the life cycle and can be fetched without
the mutex held. This avoids confusion in the compiler about an uninitialized
variable ext_ops.
ok rmind@

Enable bpfjit on sparc.

sync with head

Build bpfjit on i386.

Add bpfjit and enable it for amd64.

Enable sljit in amd64 kernel and modules.

Implement dynamic NPF extensions interface.  An extension consists of
dynamically loaded module (.so) supplementing npfctl(8) and a kernel
module.  Move normalisation and logging functionality into their own
extensions.  More improvements to come.

Move hdaudio and hdafg modules into x86 only section for now, untill
somebody creates a "all archs with PCI" ifdef.

Build hdaudio and hdafg modules.

Add a module for uatp(4).

Move i386 and amd64 usermode configurations to their respective directories
and make the usermode kernels buildalbe under build.sh.

The resulting kernels are build and packaged correctly as are the associated
modules.

sync with head.

sync to latest -current.

split the coda module in a device one, and a vfs one so that it works.

Actually create the if_axe module - driver was modularized a while ago.

Actually create the dbcool(4) module.  Driver was modularized a while ago.

Create the module for sdtemp (driver itself was modularized some time ago)

sync with head

sync to latest -current.

Also kill the module build system for ksem.

merge to -current.

Add lm, lm_isa_common, lm_isa, lm_wbsio and wbsio modules to the x86 build.

Hook secmodel_extensions(9) to modules build.

Add module glue for CHFS.

Build and install new in-kernel iscsi initiator kernel module and associated
binaries (iscsid, iscsictl) if MKISCSI != no.  Initiator can also be built
into a kernel by adding 'pseudo-device iscsi' in kernel configuration.

sync with head

Add "npf_alg_icmp" kernel module.

Build "npf" module.

add & enable vmt module

Build iic(4) and gpioiic(4) as modules.

Add filemon to the modules we build.

Link the gpioow(4) and onewire(4) modules to the build and add them to the
lists.

Add Zarlink ZL10353 DVB demodulator (or as it is now know, Intel CE623x).

add mach64drm, mgadrm, r128drm, savagedrm, sisdrm, and tdfxdrm modules

gpio(4) and gpiosim(4) can now be built and used as modules.  While here,
make some functions static.

pwdog is not for all platforms, build only on i386, x86_64, and sparc64

pwdog(4) is a device driver for QUANCOM Electronic PWDOG1 PCI
attached watchdog timers.

Build acpiwdrt(4) as a module on x86.

Two placeholder comments.

include cx24227, lg3303, mt2131, nxt2k, tvpll, xc3028, coram, cxdtv, and emdtv
modules in x86 build

As wmieeepc(4) was added to amd64 GENERIC, build it also as a amd64 module.

modify the dtv device api so hardware drivers can be loaded independently
of the dtv module

Add build glue for modular spdmem(4) driver, and enable it

build and install finsio module on i386 and amd64

build and install itesio module on i386 and amd64

Build v7fs module on all architecture rather than only on i386.

Build 7th Edition(V7) File System as a kernel module.

add nsclpcsio module to i386 build

A driver for HP 3D DriverGuard; a LIS3LV02DL-based accelerometer. Tested on
HP NC4400. Like aps(4), this is commented out in the GENERIC kernels.

build dtv module

Catchup with rmind-uvmplock merge.

build evbppc modules in 3 different flavours:

	- oea (default)
	- ibm4xx
	- booke

this, together with earlier machine_module[] work, should allow evbppc
platforms to use modules.

Modularize hpet(4). Works nicely with the multiple bus locations.

Modularize amdtemp(4).

Sync with HEAD.

sync with head

re-enable tprof_amdpmi

sync with head

Sync with HEAD

Add module build glue for odcm(4).

Import the Flash and NAND subsytem code contributed by the University
of Szeged, Hungary.

The commit includes:
 - Flash layer, which gives a common API to access flash devices
 - NAND controller subsystem for the flash layer
 - An example OMAP driver which is used on BeagleBoard or alike ARM boards

Build glue for viac7temp(4).

Add build glue for powernow(4).

Build glue for est(4).

Add build glue for coretemp(4).

Build fujbp(4), fujhk(4), and wmieeepc(4) as modules.

build padlock module on i386

Sync with HEAD

fix build!

build tprof_amdpmi

build and install aps module on i386 and amd64

Add a dummy-driver for ACPI fans.

Add build files for acpipmtr(4) module.

some platforms don't have bus_dma, so only build these modules on x86

hook xc5k, au8522, and auvitek into build

Sync with HEAD.

Add asus(x) and hpqlb(4).

Build acpidalb(4), acpitz(4), acpivga(4), and aibs(4) as modules on x86.
More to come later.

Build acpiacad(4), acpibat(4), acpibut(4), acpicpu(4), acpilid(4), and
thinkpad(4) as modules on x86. More to come later.

build acpiwmi as a module on x86

build wmi drivers as modules on x86

Sync with HEAD (-D20101022).

Also build and install compat_aoutm68k.kmod and exec_aout.kmod on m68000
to make things easier.  ${MACHINE_ARCH} == ${MACHINE_CPU} on m68k
so we can't use ad.m68k for a set list to exclude m68000.

Build the new swsensor(4) device and add to set lists

Build and install compat_aoutm68k.kmod and exec_aout.kmod on m68k machines.

Sync with HEAD.

sync with head.

sync with head

Extract ACPIVERBOSE into a kernel module.  The module can be builtin
by defining 'options ACPIVERBOSE' in the kernel config file (no change
from current behavior), or it can be loaded at boot time on those
architectures that support the boot loader's "load" command.

ACPIVERBOSE also includes code to dump acpi/wmi data.

Extract MIIVERBOSE into a kernel module.  The module can be builtin
by defining 'options MIIVERBOSE' in the kernel config file (no change
from current behavior), or it can be loaded at boot time on those
architectures that support the boot loader's "load" command.

sync with head

Extract SCSIVERBOSE into a kernel module.  The module can be builtin
by defining 'options SCSIVERBOSE' in the kernel config file (no change
from current behavior), or it can be loaded at boot time on those
architectures that support the boot loader's "load" command.

The module is built for all architectures, whether or not SCSI or
atapi support exists.

Extract USBVERBOSE into a kernel module.  The module can be builtin
by defining 'options USBVERBOSE' in the kernel config file (no change
from current behavior), or it can be loaded at boot time on those
architectures that support the boot loader's "load" command.

The module is built for all architectures, whether or not USB support
exists.

Extract the vendor/product tables and related access routines into a
separate kernel module.  Update pci bus attach routine to load the
module (if available) when we're about to start scanning the bus, and
unload the module after the scan is finished.

On architectures which support loading of modules by the boot loader,
the 'pciverbose' module can be loaded and executed without needing to
rebuild the kernel.  On all architectures, using 'options PCIVERBOSE'
in the kernel configuration file will create a 'builtin' module which
is functionally equivalent to previous behavior.

XXX Although not nearly as large as the vendor and product tables,
XXX the PCI class and subclass tables might also be offloaded into
XXX the module at a future time.

XXX Cardbus (and possibly other) drivers should also be modified to
XXX load the module before scanning/attaching devices.