Remove unnecessary <sys/malloc.h>.

Add d_discard to all struct cdevsw instances I could find.

All have been set to "nodiscard"; some should get a real implementation.

branches: 1.30.2;
Change (mostly mechanically) every cdevsw/bdevsw I can find to use
designated initializers.

I have not built every extant kernel so I have probably broken at
least one build; however I've also found and fixed some wrong
cdevsw/bdevsw entries so even if so I think we come out ahead.

branches: 1.29.30; 1.29.40; 1.29.46;
Split softc/device_t, with misc cosmetic changes.

branches: 1.28.2;
Use device_private() and device_lookup_private() to get softc
and to see if device unit is vaild.

branches: 1.27.40; 1.27.42; 1.27.44; 1.27.46;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.26.26;
merge ktrace-lwp.

branches: 1.25.8;
de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.24.8;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

__KERNEL_RCSID()

branches: 1.22.6;
merge kqueue branch into -current

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

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

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

Add trailing ; to CFATTACH_DECL.

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.

correct range check, have overflow check, fix type mismatches,
for cmap args and some other calls. from openbsd

branches: 1.16.4; 1.16.12; 1.16.14;
machine/fbio.h -> dev/sun/fbio.h

branches: 1.15.2;
Remove register prefixes.

use unsigned variable types as appropriate

branches: 1.13.4;
remove include of <vm/vm.h>. <vm/vm.h> -> <uvm/uvm_extern.h>

Change the kernel mmap interface so that the offset to map is an
"off_t" and the return value is a "paddr_t" to allow mappings
at offsets past 2^31 bytes. Somewhat inspired by FreeBSD, which
only changed the offset to a "vm_offset_t".

Includes updates for the i386, pc532 and sh3 mmmmap from Jason Thorpe.

branches: 1.11.16; 1.11.26;
Add: extern struct cfdriver cgtwo_cd;

Update for changes to config.

Clean up cg2match()

Make this compile with -Werror -Wall -Wstrict-prototypes
(finally! yea!) Also get rid of __BROKEN_INDIRECT_CONFIG

backout previous kprintf change

printf -> kprintf, sprintf -> ksprintf

New device attachment scheme:

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

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

map --> mmap

map --> mmap

It works now.

First cut at cgtwo driver. Not quite right yet.