Use device_{get,set}prop_bool() for "pciide-disable-dma".

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

branches: 1.38.2;
In dec_6600_device_register(): If we're running on a DS10, set the
"pciide-disable-dma" property on the on-board "aceride" to true. This
is intended to be a temporary measure until the issue that makes it not
work correctly is found and fixed.

Always call platform.device_register(), even if bootdev_data is NULL.

Convert the Alpha port's bus_space back-end to manage address space
with vmem(9) arenas (using statically-allocated private boundary tags
for very early-in-boot) rather than extent(9).

As a side-effect, there's arguments to some initialization functions
that are no longer required, so garbage-collect those, update all the
call sites.

Include <sys/lwp.h>

Adapt to the changed signature of pckbc_cnattach().

branches: 1.33.6;
Do a minor cleanup of alpha (this will make applying pullups post branching
easier).
u_int{8,16,32,64}_t -> uint{*}_t
Change all old-style definitions to C89 prototypes.
Whitespace cleanup.
Constification in db_disasm.c

branches: 1.32.2; 1.32.6;
#include <sys/bus.h> instead of <machine/bus.h>.

Major cleanup of alpha device drivers.
Switch to CFATTACH_DECL_NEW.
struct device * -> device_t
struct cfdata * -> cfdata_t
Use of device_xname. No direct access to struct device members.
Use aprint* (not complete).

branches: 1.30.6;
Enable Pchip and Cchip error interrupts (machine checks) on DEC 6600
systems. Add some basic pretty-printing for those errors. Tested on
a DS20.

branches: 1.29.2; 1.29.4;
Add support for booting off a couple of common RAID adapters found on
several models of alpha systems: mlx [Mylex DAC060] and iop [I2O].
Addresses PR #25829.

Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)

Remove all the __P() from sys (excluding sys/dist)
Diff checked with grep and MK1 eyeball.
i386 and amd64 GENERIC and sys still build.

branches: 1.26.44; 1.26.52; 1.26.54; 1.26.58; 1.26.62;
fix fallout from caddr_t changes.

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

branches: 1.24.20;
Use device_is_a().

Use device_parent().

branches: 1.22.2; 1.22.4; 1.22.6;
merge ktrace-lwp.

branches: 1.21.12;
Significant cleanup and bug fix of root device detection:
* On systems where it's relevant (6600, kn300, kn8ae), check which PCI bus
hierarchy we're looking at.
* Consistently check PCI function numbers (important for quad-channel ATA
controllers).
* Check the channel number (important for ATA and multi-channel SCSI
controllers).
* Check logical unit numbers.
* Use strcasecmp() to check b->protocol; the case is different depending on
the firmware revision.
* Remove b->boot_dev_type check; it's unneeded.
* Remove extraneous unneeded variables.

Not only does this fix a few PRs and multiple long-standing bugs, but the
code is smaller too.

PR 9432
PR 12225
PR 25830

branches: 1.20.2;
No need to include wdvar.h anymore.

Catch up to ata/ide changes; look for a parent device of wd named "atabus"
instead of "pciide", and check one layer farther up in the device hierarchy
for the scsipidev device.

From Manuel Bouyer, tested by me on a up1500 (identical changes to other
ide-booting code).

branches: 1.18.2;
Also pass a type argument to comcnattach() and com_kgdb_attach().
comspeed() (and thus cominit()) may need this information.

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

Rather than referencing the cfdriver directly in the cfdata entries,
instead use a string naming the driver. The cfdriver is then looked
up in a list which is built at run-time.

Get the pointer to the driver name early, rather than always dereferencing
the cfdriver pointer.

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: 1.13.8;
Convert to new ata/atapi attach structs.

branches: 1.12.2; 1.12.4;
Use symbolic names for the CTB terminal type field, rather than
hard-coded constants.

add missing #include "opt_kgdb.h"

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

Add support for attaching "com" serial ports as KGDB devices.

branches: 1.8.2;
Implement tsp_bus_get_window().

branches: 1.7.2;
CDROMs can exist on ide buses

increase number of parameters of pckbc_cnattach(), since offset of command port
is not 4 (KBCMDP), but 1 on jazz based platforms of arc port.

Needs to look at different stuff depending if the scsipi bus is SCSI or ATAPI

branches: 1.4.2;
When checking for netboot, also check for MOP protocol.

Sync the ide support with dec_eb164.c rev 1.32:
Add the support to boot an ide slave drive and to boot from the secondary
ide channel.
Michael Hitch gave me the final hint how to do that and Havard Eidnes
tested it with his slave drive.
This should fix pr#8808 on the DS10.
Also remove one ideboot check which wasn't removed when I removed it from
dec_eb164.c.

Split the PC-like keyboard controller driver into chip back-end and
bus front-end.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.14;
System support for ev6 (21264) systems.