kernel/bktr: Clean up unused code and the Makefile.

There should be no functional change.

Remove a bunch of unnecessary semicolons.

kernel: Generate miidevs.h, pccarddevs.h and pcidevs.h on the fly.

It removes the need to regenerate those header file after first editing
the associated list of IDs (miidevs, pccarddevs or pcidevs)

kernel: Generate miidevs.h, pccarddevs.h and pcidevs.h on the fly.

It removes the need to regenerate those header file after first editing
the associated list of IDs (miidevs, pccarddevs or pcidevs). After this
commit, editing the list alone is enough to add IDs.

We already did it like that for usb4bsd's usbdevs.h before. This commit
adjusts things for the remaining ID lists.

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kernel: Use DEVMETHOD_END in the drivers.

Fix some typos.

Initial import of binutils 2.22 on the new vendor branch

Future versions of binutils will also reside on this branch rather
than continuing to create new binutils branches for each new version.

kevent: Restore old EV_EOF semantics

- EV_EOF should be set when the other side closed the connection, even
if there are data pending in the read buffer (the old semantics).
- EV_NODATA is added t

kevent: Restore old EV_EOF semantics

- EV_EOF should be set when the other side closed the connection, even
if there are data pending in the read buffer (the old semantics).
- EV_NODATA is added to indicate there are no more data pending in the
buffer and EOF is detected (EV_EOF is also set in this situation).

Kernel code now tests EV_NODATA instead of EV_EOF, since EV_NODATA
delivers the information which was delivered by the EV_EOF before
this commit.

DragonFly-Bug: http://bugs.dragonflybsd.org/issue1998

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kernel: Use NULL for DRIVER_MODULE()'s evh & arg (which are pointers).

This is just cosmetics for easier reading.

DEVFS - remove dev_ops_add(), dev_ops_get(), and get_dev()

DEVFS - Bring in Alex's GSOC kernel adjustments.

This is a rollup commit bringing in Alex Hornung's GSOC adjustments
to the main kernel codebase for DEVFS.

Submitted-by: Alex Hornung <ahornung@gmai

DEVFS - Bring in Alex's GSOC kernel adjustments.

This is a rollup commit bringing in Alex Hornung's GSOC adjustments
to the main kernel codebase for DEVFS.

Submitted-by: Alex Hornung <ahornung@gmail.com>

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It's "useful" not "usefull".

Fix building of bktr(4) with 'options BKTR_GPIO_ACCESS'.

Reported-by: Frank Josellis <frank@dynamical-systems.org>

Sync with FreeBSD:

* Add some cards: several TerraTec TValue and PixelView PlayTV Pro REV-4C

* Fix indentation.

* Expand manpage.

Rename printf -> kprintf in sys/ and add some defines where necessary
(files which are used in userland, too).

Rename sprintf -> ksprintf
Rename snprintf -> knsprintf

Make allowances for source files that are compiled for both userland and
the kernel.

Do a major clean-up of the BUSDMA architecture. A large number of
essentially machine-independant drivers use the structures and definitions
in machine-dependant directories that are really machine-

Do a major clean-up of the BUSDMA architecture. A large number of
essentially machine-independant drivers use the structures and definitions
in machine-dependant directories that are really machine-independant in
nature.

Split <machine/bus_dma.h> into machine-depdendant and machine-independant parts
and make the primary access run through <sys/bus_dma.h>.

Remove <machine/bus.h>, <machine/bus_memio.h> and <machine/bus_pio.h>. The
optimizations related to bus_memio.h and bus_pio.h made a huge mess,
introduced machine-specific knowledge into essentially machine-independant
drivers, and required specific #include file orderings to do their job.
They may be reintroduced in some other form later on.

Move <machine/resource.h> to <sys/bus_resource.h>. The contents of the file
is machine-independant or can be made a superset across many platforms.

Make <sys/bus.h> include <sys/bus_dma.h> and <sys/bus_resource.h> and
include <sys/bus.h> where necessary. Remove all #include's of
<machine/resource.h> and <machine/bus.h>. That is, make the BUSDMA
infrastructure integral to I/O-mapped and memory-mapped accesses to devices
and remove a large chunk of machine-specific dependancies from drivers.
bus_if.h and device_if.h are now required to be present when using <sys/bus.h>.

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Change the kernel dev_t, representing a pointer to a specinfo structure,
to cdev_t. Change struct specinfo to struct cdev. The name 'cdev' was taken
from FreeBSD. Remove the dev_t shim for the ker

Change the kernel dev_t, representing a pointer to a specinfo structure,
to cdev_t. Change struct specinfo to struct cdev. The name 'cdev' was taken
from FreeBSD. Remove the dev_t shim for the kernel.

This commit generally removes the overloading of 'dev_t' between userland and
the kernel.

Also fix a bug in libkvm where a kernel dev_t (now cdev_t) was not being
properly converted to a userland dev_t.

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MASSIVE reorganization of the device operations vector. Change cdevsw
to dev_ops. dev_ops is a syslink-compatible operations vector structure
similar to the vop_ops structure used by vnodes.

Remov

MASSIVE reorganization of the device operations vector. Change cdevsw
to dev_ops. dev_ops is a syslink-compatible operations vector structure
similar to the vop_ops structure used by vnodes.

Remove a huge number of instances where a thread pointer is still being
passed as an argument to various device ops and other related routines.
The device OPEN and IOCTL calls now take a ucred instead of a thread pointer,
and the CLOSE call no longer takes a thread pointer.

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Remove the INTR_TYPE_* flags. The interrupt type is no longer used to
figure out which spl*() set an interrupt belongs to, because, well, spl's
no longer exist.

spl->critical section conversion

Get rid of bus_{disable,enable}_intr(), it wasn't generic enough for
our needs.

Implement some generic atomic.h functions to aid in the implementation of
a low level mutex.

Implement a generic low

Get rid of bus_{disable,enable}_intr(), it wasn't generic enough for
our needs.

Implement some generic atomic.h functions to aid in the implementation of
a low level mutex.

Implement a generic low level sleep-mutex serializer, kern/lwkt_serialize.c.
The serializer is designed to be a replacement for SPL calls but may also
be used for other very low level work (e.g. lockmgr interlocks).

Add a serializer argument to BUS_SETUP_INTR(). When non-NULL, the interrupt
handler will no longer be protected by an SPL so e.g. spl*() will no
longer protect against that device's interrupts.

The IF queueing and dequeueing mechanisms may no longer depend on outside
SPL state because network driver interrupt handlers are no longer required to
enter splnet(). Use critical sections for the moment. The IFQ and
IFF_OACTIVE interactions are not yet MP safe.

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Device layer rollup commit.

* cdevsw_add() is now required. cdevsw_add() and cdevsw_remove() may specify
a mask/match indicating the range of supported minor numbers. Multiple
cdevsw_add()'s u

Device layer rollup commit.

* cdevsw_add() is now required. cdevsw_add() and cdevsw_remove() may specify
a mask/match indicating the range of supported minor numbers. Multiple
cdevsw_add()'s using the same major number, but distinctly different
ranges, may be issued. All devices that failed to call cdevsw_add() before
now do.

* cdevsw_remove() now automatically marks all devices within its supported
range as being destroyed.

* vnode->v_rdev is no longer resolved when the vnode is created. Instead,
only v_udev (a newly added field) is resolved. v_rdev is resolved when
the vnode is opened and cleared on the last close.

* A great deal of code was making rather dubious assumptions with regards
to the validity of devices associated with vnodes, primarily due to
the persistence of a device structure due to being indexed by (major, minor)
instead of by (cdevsw, major, minor). In particular, if you run a program
which connects to a USB device and then you pull the USB device and plug
it back in, the vnode subsystem will continue to believe that the device
is open when, in fact, it isn't (because it was destroyed and recreated).

In particular, note that all the VFS mount procedures now check devices
via v_udev instead of v_rdev prior to calling VOP_OPEN(), since v_rdev
is NULL prior to the first open.

* The disk layer's device interaction has been rewritten. The disk layer
(i.e. the slice and disklabel management layer) no longer overloads
its data onto the device structure representing the underlying physical
disk. Instead, the disk layer uses the new cdevsw_add() functionality
to register its own cdevsw using the underlying device's major number,
and simply does NOT register the underlying device's cdevsw. No
confusion is created because the device hash is now based on
(cdevsw,major,minor) rather then (major,minor).

NOTE: This also means that underlying raw disk devices may use the entire
device minor number instead of having to reserve the bits used by the disk
layer, and also means that can we (theoretically) stack a fully
disklabel-supported 'disk' on top of any block device.

* The new reference counting scheme prevents this by associating a device
with a cdevsw and disconnecting the device from its cdevsw when the cdevsw
is removed. Additionally, all udev2dev() lookups run through the cdevsw
mask/match and only successfully find devices still associated with an
active cdevsw.

* Major work on MFS: MFS no longer shortcuts vnode and device creation. It
now creates a real vnode and a real device and implements real open and
close VOPs. Additionally, due to the disk layer changes, MFS is no longer
limited to 255 mounts. The new limit is 16 million. Since MFS creates a
real device node, mount_mfs will now create a real /dev/mfs<PID> device
that can be read from userland (e.g. so you can dump an MFS filesystem).

* BUF AND DEVICE STRATEGY changes. The struct buf contains a b_dev field.
In order to properly handle stacked devices we now require that the b_dev
field be initialized before the device strategy routine is called. This
required some additional work in various VFS implementations. To enforce
this requirement, biodone() now sets b_dev to NODEV. The new disk layer
will adjust b_dev before forwarding a request to the actual physical
device.

* A bug in the ISO CD boot sequence which resulted in a panic has been fixed.

Testing by: lots of people, but David Rhodus found the most aggregious bugs.

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Update bktr(4) to FreeBSD current's version. This most importantly
includes a new msp driver based on the Linux Brooktree driver.

Add support for Terratec TValue submitted by Patrick Mauritz
<oxygen

Update bktr(4) to FreeBSD current's version. This most importantly
includes a new msp driver based on the Linux Brooktree driver.

Add support for Terratec TValue submitted by Patrick Mauritz
<oxygene@studentenbude.ath.cx>.

The ioctl headers are moved into the MI dev/ tree, symlinks for
compatibiliy are added in a separate commit.

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device switch 1/many: Remove d_autoq, add d_clone (where d_autoq was).

d_autoq was used to allow the device port dispatch to mix old-style synchronous
calls with new style messaging calls within a p

device switch 1/many: Remove d_autoq, add d_clone (where d_autoq was).

d_autoq was used to allow the device port dispatch to mix old-style synchronous
calls with new style messaging calls within a particular device. It was never
used for that purpose.

d_clone will be more fully implemented as work continues. We are going to
install d_port in the dev_t (struct specinfo) structure itself and d_clone
will be needed to allow devices to 'revector' the port on a minor-number
by minor-number basis, in particular allowing minor numbers to be directly
dispatched to distinct threads. This is something we will be needing later
on.

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Add __DragonFly__