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

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

HOWEVER! Some subsystems have

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

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

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

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

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macppc/if_gm.c (superseded by gem(4))

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

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

branches: 1.44.16; 1.44.18;
KNF. Remove extra spaces. No functional change.

branches: 1.43.14;
split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.

branches: 1.42.8; 1.42.18;
Cleanup includes. Switch from <machine/XXX.h> to <sys/XXX.h> from
bus, cpu, and intr. Remove unneeded includes.

branches: 1.41.4;
- Use lwp_getpcb() on VAX, clean from struct user usage.
- Include sys/user.h in MD proc.h .

Remove clause 3 and 4 from TNF licenses

branches: 1.39.2; 1.39.4;
Split device_t/softc for MI ncr53c9x and some related devices,
with various cleanup.

Rototill the vax code. Switch to devicet/PRIV_ALLOC. Cleanup vax autoconf
code. Move to prototype definitions. staticfy, constify, avoid casting.
Use device_* accessors.

Allow KA53 to link, from Hans Rosenfeld. clk_page is used only if VAX46, VAX48
or VAX49 are defined.

branches: 1.36.2; 1.36.6;
Reorganize a bit to be able to support multiple sgmaps.

branches: 1.35.20; 1.35.26;
Fix caddr_t fallout.

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

branches: 1.33.16;
Use the SI capitalization for "Hz", "kHz", and "MHz" in comments and strings.
Add a space between numbers and Hz unit.

branches: 1.32.4; 1.32.6; 1.32.8; 1.32.10;
merge ktrace-lwp.

branches: 1.31.10;
use the generated macros in locators.h rather than hard-coded numbers
to index the cf_loc[] array. reviewed by allen briggs.

Fetch SCSI controller ID from nvram for VS4k90 also.

branches: 1.29.2;
DMA, not dma nor Dma.

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

increase sc_maxxfer from 63K to 64K. otherwise fsck fails for
file systems with larger block sizes.

branches: 1.24.2; 1.24.8; 1.24.18;
Add a VAXANY type. Eventually to used in INSTALL / GENERIC to easily
include support for all VAX platforms

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

Just before the merge syssrc has been tagged with thorpej_scsipi_beforemerge

branches: 1.22.2;
Giant update from Michael Kukat (michael@unixiron.org).
Fixes support for:
MicroVAX 3100m90
MicroVAX 3100m95
VAX 4000/100 (tested)
VAX 4000/105A (tested)
VAX 4000/108
VAX 4000/400 (tested)
VAX 4000/500 (tested)
VAX 4000/600

branches: 1.21.2;
Commit changes to SCSI working on the VS4000/9x. "Don't overthink the
plumbing! Duh!".

Un __P.

More ELF changes (a.out still works).

branches: 1.18.2;
We use opt_cputype.h now.

Have MI ncr53c9x_attach() the 2nd and 3rd arguments for scsipi_adater
and scsipi_device respectively, with size reduction of ncr53c9x_softc.
Specifying NULL instructs the driver to use default adapter and default
device codes. Every target port has ncr53c9x_attach(sc, NULL, NULL) anyway.

Adjust to new evcnt stuff.

Add extra argument to scb_vecalloc (a struct evcnt *)
Move ivec_dsp from trap.h to scb.h
Add interrupt counting to asc, le, ze, ncr, dz interrupts.
add common support for counting interrupts to cnm_idisp so
it can be done very efficiently.

branches: 1.14.2;
Add some debug stuff. Disable SCSI on KA49 for now until I can figure out
why it doesn't work.

Preliminary support for the VS4000/90 SGMAP. Needed for SCSI. Does not
quite work right yet.

be a bit more defensive in the probe routines. only allow one attachment.

Extend asc driver to include support for the VS400/9x.
Add VS4000/9x support vsbus_dma.c

Remove autconf stuff. not needed and wrong.

Fetch the SCSI ID out of NVRAM instead, if possible.

DEC have the internal SCSI controller as ID6, and CDROM as ID7.

Add fix for VS4000 SCSI hangs on disk writes. Add a VAX_BUS_DMA_SPILLPAGE
and use it in the asc_vsbus driver.

disable scsi for ka49 until sgmap is adapted to it.

Chnage chip freq to 25MHZ. panic if dmaaddr is not in the kernel's
address space. fix some printfs. (reads now work!)

it is pretty close to working. the scsibus probes now.

it's closer to working now.

expunge vm_offset_t and vm_size_t.
add bus_dma support for the vs4000 dma translation map (sgmap).
enhance the vsbus for the lance to work with it.
remove the sgmap init code from ka46/48/49.c

First pass at NCR53c9x attachment for VS4000. It doesn't work yet.
But I want to save the work.

These files have never been used; remove them.

use dev/dec/lk201.h, fold back DELAY() changes from pmax lk201.c rev 1.7.

Update for changes to config.

backout previous kprintf change

printf -> kprintf, sprintf -> ksprintf

tty stop functions really should return void, not int, and certainly not both.

SCSI and ST506 support for the VAXstation architecture.

These files have never been used; remove them.

SCSI and ST506 support for the VAXstation architecture.

This is not (has never?) being used.

Rototill the vax code. Switch to devicet/PRIV_ALLOC. Cleanup vax autoconf
code. Move to prototype definitions. staticfy, constify, avoid casting.
Use device_* accessors.

branches: 1.33.50; 1.33.70; 1.33.74;
merge ktrace-lwp.

branches: 1.32.16;
Add write barriers (a no-op on vax).

__KERNEL_RCSID()

branches: 1.30.2;
Block tty interrupts in getc()/putc().

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

On pmax, drop into DDB on break.

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: 1.24.8;
Move the dz driver to dev/dec, since it can be shared with pmax.

branches: 1.23.4; 1.23.8;
A bunch of new CPUs that are supported, from Michael Kukat
(michael@unixiron.org). Among them are 4000/400, 4000/500 and 4000/105A.

Make this compile again.

Remove lkc, add lkkbd/lkms support.

Un __P.

More ELF changes (a.out still works).

Adjust to new evcnt stuff.

Add extra argument to scb_vecalloc (a struct evcnt *)
Move ivec_dsp from trap.h to scb.h
Add interrupt counting to asc, le, ze, ncr, dz interrupts.
add common support for counting interrupts to cnm_idisp so
it can be done very efficiently.

branches: 1.16.2;
Revamp the VAX interrupt handling code. Make it compatible with all the
other ports. Clean up some things.

branches: 1.15.2;
Aupport these on 4000/90.

Moved from dz_vsbus.c,v

Qbus moved in hierarchy.

Don't detect glass tty if the machine is a workstation.
Hint from Thomas Seidmann.

branches: 1.11.4;
Change console detection a little bit.

Buggfixes for VS 4000/VLC. Basic support for VS4000/90 and MV4000/300.
From Michael Kukat.

Change vsbus to take a locator for all devices.
Figure out interrupt vector/mask on vsbus by forcing all devices to
generate interrupts in the match routine, like on unibus.

Basic KA48 (VAXstation 4000 VLC) support.
From Michael Kukat <michael@camaronet.de>

Another giant change: Allocate register space dynamic instead of compiled-in.
This is done on a physical page size basis, instead of virtual (as the
(on vax yet non-existing) bus_* routines does). This is similar to the
way uba allocation is done.

Support for VS4000/60.

DDB support on glass tty. Also smarter keyboard decoding.

Rudimentary support for the VS3100 builtin graphics console.

Fixed bug with lost characters in DDB output.

Support for DDB on DZ console.

Split the DZ11 driver into two parts; can now use the same driver on
both unibus/qbus devices and vaxstations.

vax/dz(4): fix NULL pointer dereference in dzgetc()

This fixes an immediate reboot situation when booting with -d on a
framebuffer console that utilizes a dz(4)-attached keyboard.

vax/dz(4): defer configuring children lkkbd and lkms

At least lkkdb (dzkbd, really) wants to not only send data over dz(4),
it also depends on receiving them asynchronously for the keyboard type
detection to work. So defer configuring dz(4) children until all vsbus
children have attached and vsbus interrupts have been unmasked.

This fixes keyboard type detection when running with serial console,
which on most (all?) VAXstations is on dz(4), too.

vax/dz(4): restore dz_print() to print line number of children

vax/dz(4): fix console detection when it's not on line 0

branches: 1.47.2; 1.47.8;
vsbus vax: sprinkle volatile for register accesses

Merge thorpej-cfargs2.

branches: 1.45.8;
Merge thorpej-cfargs branch:

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

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

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

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

...and a sentinel value CFARG_EOL.

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

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

branches: 1.44.24;
Update copyright notice for Ludd (remove clause 3 & 4).

branches: 1.43.2; 1.43.16;
Define and use VS_REGS_KA49 rather than magic numbers. From OpenBSD.

branches: 1.42.8;
Cleanup includes. Switch from <machine/XXX.h> to <sys/XXX.h> from
bus, cpu, and intr. Remove unneeded includes.

Make console keyboard work on VAXstation 4000/9x. Seems not to break
anything on other VAXstations (tested on 4000 VLC).

branches: 1.40.4; 1.40.14; 1.40.24; 1.40.26;
Switch dz driver to PRIVALLOC and device_* accessors.

Rototill the vax code. Switch to devicet/PRIV_ALLOC. Cleanup vax autoconf
code. Move to prototype definitions. staticfy, constify, avoid casting.
Use device_* accessors.

Fix KA53 console. From Hans Rosenfeld.

branches: 1.37.40; 1.37.60; 1.37.64;
Fix various places where assignment happen to casted lvalues.
(t)v = foo; is not legal C.

branches: 1.36.4; 1.36.6; 1.36.8; 1.36.10;
merge ktrace-lwp.

branches: 1.35.10;
use the generated macros in locators.h rather than hard-coded numbers
to index the cf_loc[] array. reviewed by allen briggs.

Add write barriers (a no-op on vax).

Use the vax confdata to determine whether to use serial console.
Do cn_set_magic() for the VAX DDB escape sequence (ESC-D).

__KERNEL_RCSID()

branches: 1.31.2;
Use aprint_normal() for cfprint routines.

Block tty interrupts in getc()/putc().

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

On pmax, drop into DDB on break.

- The VSXXX is an 8-bit device, not 7.
- Obey ls->dz_line in dzputc(), since dzms uses it.
- Remove an odd "circular" reference that doesn't appear to be useful.

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.

Don't try to connect a keyboard to serial line 0 if the serial console
is on line 0; it may destroy line settings.

branches: 1.22.2; 1.22.4;
Don't try to probe for dz11 on 4000/90, may corrupt the flash rom (?).
Suggested by Hugh Graham <hugh@openbsd.org>.

Move the dz driver to dev/dec, since it can be shared with pmax.

branches: 1.20.2; 1.20.8;
Add a VAXANY type. Eventually to used in INSTALL / GENERIC to easily
include support for all VAX platforms

branches: 1.19.2;
re-add.

delete (again), then add (again) ?

try a `cvs ci -f' to make this appear on the trunk again. no changes.

Giant update from Michael Kukat (michael@unixiron.org).
Fixes support for:
MicroVAX 3100m90
MicroVAX 3100m95
VAX 4000/100 (tested)
VAX 4000/105A (tested)
VAX 4000/108
VAX 4000/400 (tested)
VAX 4000/500 (tested)
VAX 4000/600

Rename dz_ibus to dz_vsbus.

branches: 1.14.2;
Moved to dz_ibus.c,v

Qbus moved in hierarchy.

Don't detect glass tty if the machine is a workstation.
Hint from Thomas Seidmann.

branches: 1.11.4;
Change console detection a little bit.

Buggfixes for VS 4000/VLC. Basic support for VS4000/90 and MV4000/300.
From Michael Kukat.

Change vsbus to take a locator for all devices.
Figure out interrupt vector/mask on vsbus by forcing all devices to
generate interrupts in the match routine, like on unibus.

Basic KA48 (VAXstation 4000 VLC) support.
From Michael Kukat <michael@camaronet.de>

Another giant change: Allocate register space dynamic instead of compiled-in.
This is done on a physical page size basis, instead of virtual (as the
(on vax yet non-existing) bus_* routines does). This is similar to the
way uba allocation is done.

Support for VS4000/60.

DDB support on glass tty. Also smarter keyboard decoding.

Rudimentary support for the VS3100 builtin graphics console.

Fixed bug with lost characters in DDB output.

Support for DDB on DZ console.

branches: 1.1.1;
Split the DZ11 driver into two parts; can now use the same driver on
both unibus/qbus devices and vaxstations.

vax/gpx: Stop copy{in,out}(9) from/to 0-length buffers

Found by GCC12 -Wmaybe-uninitialized.

Authored by kalvisd@.

branches: 1.3.2;
Make local variables static.

Misc cleanup.

- move function declarations after struct declarations and
before global variables
- sort function declarations per actual implementation
- explicitly denote 'static' for static functions
- some KNF

No functional change (though gcc generates different binary).

branches: 1.1.2;
Add a support for gpx(4) color framebuffer found on VAXstation 3100.

Poted from OpenBSD/vax. Note smg(4) monochrome onboard framebuffer
driver is also changed attached only if gpx(4) is not installed
or flags 1 is specified in config files, as OpenBSD did.

Tested on my VAXstation 3100/m30 with and without 8bpp gpx(4).
Revied on port-vax@ and "Please go ahead!" from ragge@.
https://mail-index.netbsd.org/port-vax/2023/01/thread1.html#004147

Worth to pullup to netbsd-10.

Merge thorpej-cfargs2.

branches: 1.61.8;
Merge thorpej-cfargs branch:

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

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

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

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

...and a sentinel value CFARG_EOL.

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

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

branches: 1.60.12;
Fix typo in comment(s/similiar/similar/).

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

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

HOWEVER! Some subsystems have

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

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

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

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

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

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

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

branches: 1.58.8; 1.58.10;
Update copyright notice for Ludd (remove clause 3 & 4).

We have three sets of DTYPE_ constants in the kernel:
altq Drop Type
disklabel Disk Type
file Descriptor Type
(not to mention constants that contain the string DTYPE).
Let's make them two, by changing the disklabel one to be DisK TYPE since the
other disklabel constants seem to do that. Not many userland programs use
these constants (and the ones that they do are mostly in ifdefs). They will
be fixed shortly.

declare error

make more drivers use disk_ioctl, and add a dev parameter to it so that
we can merge the "easy" disklabel ioctls to it. Ultimately all this will
go do dk_ioctl once all the drivers have been converted.

branches: 1.54.4;
Add d_discard to all struct cdevsw instances I could find.

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

Add d_discard to all struct bdevsw instances I could find.

I've set them all to nodiscard. Some of them (wd, dk, vnd, ld,
raidframe, maybe cgd) should be implemented for real.

branches: 1.52.2;
Simplify (and remove now unused variable)

branches: 1.51.8; 1.51.18; 1.51.22;
Cleanup includes. Switch from <machine/XXX.h> to <sys/XXX.h> from
bus, cpu, and intr. Remove unneeded includes.

branches: 1.50.4;
- Use lwp_getpcb() on VAX, clean from struct user usage.
- Include sys/user.h in MD proc.h .

kill extra whitespaces
reviewed by tsutsui@

bcopy -> memcpy

bzero -> memset

ANSIfy another 1261 function definitions.
The only ones left in sys are beyond by sed script!
(or in sys/dist or sys/external)
Mostly they have function pointer parameters.

branches: 1.45.2;
g/c BUFQ_FOO() macros and use bufq_foo() directly.

branches: 1.44.4; 1.44.12;
Switch to PRIVALLOC and device_* accessors

Rototill the vax code. Switch to devicet/PRIV_ALLOC. Cleanup vax autoconf
code. Move to prototype definitions. staticfy, constify, avoid casting.
Use device_* accessors.

branches: 1.42.12; 1.42.16;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

Merge disk init changes from the vmlocking branch. These seperate init /
destroy of 'struct disk' from attach / detach.

branches: 1.40.4; 1.40.6; 1.40.8;
It's not a good idea for device drivers to modify b_flags, as they don't
need to understand the locking around that field. Instead of setting
B_ERROR, set b_error instead. b_error is 'owned' by whoever completes
the I/O request.

branches: 1.39.2; 1.39.10; 1.39.12; 1.39.14;
Fix caddr_t fallout.

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

branches: 1.37.14;
integrate kauth.

Use device_unit().

branches: 1.35.2; 1.35.4; 1.35.6;
Use device_parent().

branches: 1.34.2; 1.34.4; 1.34.6;
bare asm -> __asm

merge ktrace-lwp.

- change the way to specify a bufq strategy. (by string rather than by number)
- rather than embedding bufq_state in driver softc,
have a pointer to the former.
- move bufq related functions from kern/subr_disk.c to kern/subr_bufq.c.
- rename method to strategy for consistency.
- move some definitions which don't need to be exposed to the rest of kernel
from sys/bufq.h to sys/bufq_impl.h.
(is it better to move it to kern/ or somewhere?)
- fix some obvious breakage in dev/qbus/ts.c. (not tested)

branches: 1.31.12;
move buffer queue related stuffs from buf.h to their own header, bufq.h.

__KERNEL_RCSID()

branches: 1.29.2;
don't #include <sys/dkstat.h> where it is (appearently) unused

Change bounds_check_with_label() to take a pointer to the disk structure,
rather than the label itself. This paves the way for some future changes.

Change return type of readdisklabel() to const char *
I hope I've found all the correct places!

Change SBSIZE -> SBLOCKSIZE, to track changes brought in with UFS2.

Use aprint_normal() for cfprint routines.

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.

Don't include <sys/map.h>.

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.

Convert to new device buffer queue interface.

Approved by: Anders Magnusson <ragge@netbsd.org>

branches: 1.17.2; 1.17.10;
Make this compile under ELF.

branches: 1.16.2; 1.16.4;
Various typos in comments (neccessary, sceme, choise, ...).

branches: 1.15.2;
splimp -> splbio.

branches: 1.14.2;
Giant update from Michael Kukat (michael@unixiron.org).
Fixes support for:
MicroVAX 3100m90
MicroVAX 3100m95
VAX 4000/100 (tested)
VAX 4000/105A (tested)
VAX 4000/108
VAX 4000/400 (tested)
VAX 4000/500 (tested)
VAX 4000/600

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

Do 3 retries on a failing sector before giving up.
Clear pending interrupts before starting a DMA transfer. If an interrupt
occurs while the HDC9224 is doing DMA, the transfered data will be
scrambled (without giving any errors, quite bad).

remove redundant vm includes.

Make the HDC9224 MFM device driver up-to-date; has been not-working
since NetBSD 1.2 (!) It also uses interrupts instead of polling now.
Also fix the DMA area locking between SCSI and MFM disks.
Still missing - floppy support.

branches: 1.9.14; 1.9.24;
Wall cleaning.

Remove __BROKEN_INDIRECT_CONFIG and change all drivers to use
config_search instead.

Update for changes to config.

Change the way boot device is figured out; now only using DEC numbers
and done when the device get attached.

Fixed bug that caused d partition being treated as c.
RAW_PART is 2, not 3.

branches: 1.4.6;
backout previous kprintf change

printf -> kprintf, sprintf -> ksprintf

change cfprint_t type definition to take a const char *, rather than
a char *, because that's what was really intended, and because
if the print function modifies the string, various things could become
unhappy (so the string should _not_ be modified).

SCSI and ST506 support for the VAXstation architecture.

Update copyright notice for Ludd (remove clause 3 & 4).

branches: 1.6.122; 1.6.142;
merge ktrace-lwp.

Spell address with two d's. Inspired by similar changes in OpenBSD,
originating from Jonathon Gray and forwarded by jmc@openbsd.

branches: 1.4.6; 1.4.22;
Various typos in comments (neccessary, sceme, choise, ...).

branches: 1.3.4;
Changes so that the kernel can be compiled under __ELF__.

Make the HDC9224 MFM device driver up-to-date; has been not-working
since NetBSD 1.2 (!) It also uses interrupts instead of polling now.
Also fix the DMA area locking between SCSI and MFM disks.
Still missing - floppy support.

branches: 1.1.28; 1.1.38;
SCSI and ST506 support for the VAXstation architecture.

This file hasn't been in use for a long time.

Move bpfattach()/bpfdetach() calls into ether_ifattach()/ether_ifdetach().

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

Un __P.

branches: 1.13.2;
Rework layer 2 protocol input routines. Instead of calling e.g. ether_input()
directly, call the function pointer (*if_input)(ifp, m). The input routine
expects the packet header to be at the head of the packet, and will adjust
as necessary. Privatize the layer 2 input and output routines, allowing
*_ifattach() to set them up as appropriate.

First towards use of bus.h routines on vax. Allocate DMA memory for
LANCE chip on vaxstations.

branches: 1.11.4;
Change vsbus to take a locator for all devices.
Figure out interrupt vector/mask on vsbus by forcing all devices to
generate interrupts in the match routine, like on unibus.

Update to slightly altered rnd_attach_source() api

Another giant change: Allocate register space dynamic instead of compiled-in.
This is done on a physical page size basis, instead of virtual (as the
(on vax yet non-existing) bus_* routines does). This is similar to the
way uba allocation is done.

Assign my copyrights to TNF.

Support for VS4000/60.

adapt to LANCE driver split

defopt NS, NSIP.

defopt LLC

defopt CCITT.

defopt INET, NETATALK.

Add vax-hacked lance device driver for vaxstations.
XXX - This is temporary; will go away when the troubles with the
MI driver is fixed.

This file is no longer used.

Rototill the vax code. Switch to devicet/PRIV_ALLOC. Cleanup vax autoconf
code. Move to prototype definitions. staticfy, constify, avoid casting.
Use device_* accessors.

branches: 1.11.50; 1.11.70; 1.11.74;
merge ktrace-lwp.

branches: 1.10.16;
Spell address with two d's. Inspired by similar changes in OpenBSD,
originating from Jonathon Gray and forwarded by jmc@openbsd.

__KERNEL_RCSID()

branches: 1.8.6;
Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

branches: 1.5.4; 1.5.8;
Un __P.

Add extra argument to scb_vecalloc (a struct evcnt *)
Move ivec_dsp from trap.h to scb.h
Add interrupt counting to asc, le, ze, ncr, dz interrupts.
add common support for counting interrupts to cnm_idisp so
it can be done very efficiently.

branches: 1.3.2;
Extend asc driver to include support for the VS400/9x.
Add VS4000/9x support vsbus_dma.c

Revamp the VAX interrupt handling code. Make it compatible with all the
other ports. Clean up some things.

branches: 1.1.2;
Aupport these on 4000/90.

vax/lcg(4): Check vax_siedata in lcg_match() and lcgcnprobe() as well.

LCG only exists on two specific VAXstation models, but not the MicroVAXen
sharing the same board type.

PR port-vax/59109: Booting 10.1 fails on Microvax 3100 model 80

vax/lcg(4): Fix device_t/softc split straggler.

PR port-vax/59109: Booting 10.1 fails on Microvax 3100 model 80

(Probably won't fix the immediate problem but might fix some related
ones.)

branches: 1.11.2; 1.11.8;
Don't let compiler optimize out the framebuffer probe in lcg_match() by
using keyword volatile.

fix various typos in comments.

sys: Omit vestigial struct devices in softcs after device_t split.

sys: Fix various abuse of struct device internals.

Will help to make struct device opaque later.

Merge thorpej-cfargs2.

branches: 1.6.8;
Merge thorpej-cfargs branch:

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

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

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

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

...and a sentinel value CFARG_EOL.

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

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

branches: 1.5.2;
malloc(9) -> kmem(9)

branches: 1.4.14;
Remove duplicate ;

branches: 1.3.2;
Typos.

branches: 1.2.2; 1.2.18;
Add small fix from Björn Johannessonwhich makes framebuffer woth with X11.

Adds VAXstation VLC and 4000/60 framebuffer support. From Blaz Antonic
and updated by BjörnJohannesson.

Add new accelerated driver for SPX graphics found in some VAXstations,
remove old broken lcspx driver. This is a bugfixed and refactored
version of the spx driver originally developed by Blaz Antonic in 2005.
OK'ed by mhitch.

branches: 1.10.4; 1.10.6; 1.10.10;
Rototill the vax code. Switch to devicet/PRIV_ALLOC. Cleanup vax autoconf
code. Move to prototype definitions. staticfy, constify, avoid casting.
Use device_* accessors.

branches: 1.9.12; 1.9.16;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.8.10;
Merge some of the less invasive changes from the vmlocking branch:

- kthread, callout, devsw API changes
- select()/poll() improvements
- miscellaneous MT safety improvements

branches: 1.7.4;
Don't exceed array bounds (found by gcc 4.3).
XXX not sure if the fix is correct.

branches: 1.6.2; 1.6.4;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.5.14;
Add an extra cookie to the ioctl and mmap wsdisplay accessops that points
to the screen on which they are being called. The driver cannot guess
this by itself but it is needed to implement, at least, the getwschar and
putwschar functions in the correct place. There are no functional changes
yet.

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

branches: 1.4.4; 1.4.6; 1.4.8; 1.4.10; 1.4.12;
merge ktrace-lwp.

Now that the wsfont fonts are made static, we can no longer
reference the fonts directly (which was actually a wrong thing
to try to do). Instead, convert to using the wsfont API to
look for a 8x15 font, and use it if found.

Suggested by thorpej
Reviewed by drochner

branches: 1.2.4; 1.2.18;
Don't map the framebuffer again when attaching the lcspx driver if it was
already mapped in the early console startup.

The software cursor isn't going to blink if we don't start it - set up the
callout when attaching.

Now that the cursor blink routine is actually called, blink the entire cursor
line rather than just the first pixel.

Don't try to clear the current cursor if the pointer to it hasn't been
initialized. This seems to happen when using the display as console, but
not when using a serial console.

On early console startup, use the framebuffer sizes, not the character cell
size to compute how much to clear.

The lcspx display will now initialize when booting with the display console,
but the dz device is not detected and the keyboard will not work yet. I
haven't tracked down why the dz device isn't found (it works fine when
using a serial console).

Add console text device driver for the LCSPX framebuffer. Really dump,
cannot change colours, and is really slow; I haven't found how to buffer
writes to the console yet.

Remove unnecessary <sys/malloc.h>.

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

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

HOWEVER! Some subsystems have

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

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

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

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

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

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

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

branches: 1.9.58; 1.9.60;
Cleanup includes. Switch from <machine/XXX.h> to <sys/XXX.h> from
bus, cpu, and intr. Remove unneeded includes.

branches: 1.8.22;
Fix leds.c to compile.

Remove clause 3 and 4 from TNF licenses

branches: 1.6.2; 1.6.4;
Rototill the vax code. Switch to devicet/PRIV_ALLOC. Cleanup vax autoconf
code. Move to prototype definitions. staticfy, constify, avoid casting.
Use device_* accessors.

branches: 1.5.20; 1.5.36; 1.5.40;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.4.26;
merge ktrace-lwp.

branches: 1.3.16;
__KERNEL_RCSID()

branches: 1.2.8; 1.2.24;
Add a VAXANY type. Eventually to used in INSTALL / GENERIC to easily
include support for all VAX platforms

branches: 1.1.2; 1.1.4;
Support to control the leds on VAXstations, taken from Sun3 and ported
to vax by Shinmyoh Koji (yesu@rb3.so-net.ne.jp).

These files have never been used; remove them.

use dev/dec/lk201.h, fold back DELAY() changes from pmax lk201.c rev 1.7.

RCSID Police.

backout previous kprintf change

printf -> kprintf, sprintf -> ksprintf

SCSI and ST506 support for the VAXstation architecture.

Rototill the vax code. Switch to devicet/PRIV_ALLOC. Cleanup vax autoconf
code. Move to prototype definitions. staticfy, constify, avoid casting.
Use device_* accessors.

branches: 1.18.50; 1.18.70; 1.18.74;
merge ktrace-lwp.

branches: 1.17.16;
__KERNEL_RCSID()

branches: 1.16.6;
Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

Move the dz driver to dev/dec, since it can be shared with pmax.

branches: 1.12.4; 1.12.8;
Un __P.

branches: 1.11.2;
Qbus moved in hierarchy.

Make LK201 arrow keys work again.

branches: 1.9.2;
Change vsbus to take a locator for all devices.
Figure out interrupt vector/mask on vsbus by forcing all devices to
generate interrupts in the match routine, like on unibus.

Support for VS4000/60.

KNF (only include one of <sys/{param,types}.h>).

defopt DDB.

Fast fix to make VS keyboard work again after wscons changes.
XXX - This will be done in a better way in the future.

Bugfix: use of uninitialised variable that gcc didn't notice.

DDB support on glass tty. Also smarter keyboard decoding.

Add virtual console support.

Rudimentary support for the VS3100 builtin graphics console.

branches: 1.1.2;
Port rasops'fied smg(4) framebuffer driver for VS3100 from OpenBSD/vax.

This allows using more fonts other than 8x15 pixels on smg(4).
Tested on my VAXstation 3100/m30.

Note the bitorder of smg(4) VRAM is LSB first (i.e. LSBit is the
most left side pixel) and this requires more complicated changes
to bitmask ops in MI rasops(9) because several LE machines have
VRAMs whose MSBit is connected to the most left side pixel,
but for now I prepared smg(4) specific putchar and cursor ops
based on old luna68k omrasops.

Fix SCSI tranfer corruption on VAXstation 3100/m30 (KA420) on netboot.

See my post on port-vax@ for details:
https://mail-index.netbsd.org/port-vax/2024/02/16/msg004866.html
and "go ahead!" from ragge@. Should be pulled up to netbsd-10 and -9.

Remove unnecessary <sys/malloc.h>.

branches: 1.50.22;
Do not expect a struct buf to be present if doing DMA to kernel space.
Fixes bug reported by sadness on port-vax.

branches: 1.49.4;
Rename min/max -> uimin/uimax for better honesty.

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

HOWEVER! Some subsystems have

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

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

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

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

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

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

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

branches: 1.48.58; 1.48.60;
Cleanup includes. Switch from <machine/XXX.h> to <sys/XXX.h> from
bus, cpu, and intr. Remove unneeded includes.

branches: 1.47.4;
- Use lwp_getpcb() on VAX, clean from struct user usage.
- Include sys/user.h in MD proc.h .

Remove clause 3 and 4 from TNF licenses

branches: 1.45.2; 1.45.4;
Split devict_t/softc for ncr5380sbc SCSI, and misc cosmetic changes.

Rototill the vax code. Switch to devicet/PRIV_ALLOC. Cleanup vax autoconf
code. Move to prototype definitions. staticfy, constify, avoid casting.
Use device_* accessors.

branches: 1.43.20; 1.43.36; 1.43.40;
Fix caddr_t fallout.

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

branches: 1.41.26;
merge ktrace-lwp.

branches: 1.40.16;
__KERNEL_RCSID()

branches: 1.39.6;
Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

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

branches: 1.35.2; 1.35.8;
Pull up the thorpej_scsipi branch to main branch.
This is a completely rewritten scsipi_xfer execution engine, and the
associated changes to HBA drivers. Overview of changes & features:
- All xfers are queued in the mid-layer, rather than doing so in an
ad-hoc fashion in individual adapter drivers.
- Adapter/channel resource management in the mid-layer, avoids even trying
to start running an xfer if the adapter/channel doesn't have the resources.
- Better communication between the mid-layer and the adapters.
- Asynchronous event notification mechanism from adapter to mid-layer and
peripherals.
- Better peripheral queue management: freeze/thaw, sorted requeueing during
recovery, etc.
- Clean separation of peripherals, adapters, and adapter channels (no more
scsipi_link).
- Kernel thread for each scsipi_channel makes error recovery much easier
(no more dealing with interrupt context when recovering from an error).
- Mid-layer support for tagged queueing: commands can have the tag type
set explicitly, tag IDs are allocated in the mid-layer (thus eliminating
the need to use buggy tag ID allocation schemes in many adapter drivers).
- support for QUEUE FULL and CHECK CONDITION status in mid-layer; the command
will be requeued, or a REQUEST SENSE will be sent as appropriate.

Just before the merge syssrc has been tagged with thorpej_scsipi_beforemerge

branches: 1.34.2;
Giant update from Michael Kukat (michael@unixiron.org).
Fixes support for:
MicroVAX 3100m90
MicroVAX 3100m95
VAX 4000/100 (tested)
VAX 4000/105A (tested)
VAX 4000/108
VAX 4000/400 (tested)
VAX 4000/500 (tested)
VAX 4000/600

Fix bug that prevented DMA to work on SCSI chain B. This fixes PR#11124
but in a different way than suggested by the submitter.

Make the HDC9224 MFM device driver up-to-date; has been not-working
since NetBSD 1.2 (!) It also uses interrupts instead of polling now.
Also fix the DMA area locking between SCSI and MFM disks.
Still missing - floppy support.

branches: 1.31.2;
Rename ncr[5380] device to si to more consistent with other ports.
Add VAX660 to cputype.h. Remove needs-flag from si & asc entries.

Adjust to new evcnt stuff.

More event counter stuff. Plus a little cruft cleanup while doing it.

Add extra argument to scb_vecalloc (a struct evcnt *)
Move ivec_dsp from trap.h to scb.h
Add interrupt counting to asc, le, ze, ncr, dz interrupts.
add common support for counting interrupts to cnm_idisp so
it can be done very efficiently.

branches: 1.27.2;
Growel out the SCSI BUS ID from NVRAM instead of hard-code it.

Add a "sc_rev" member to ncr5380_softc and handle CXD1180 quirk
in MI ncr5380sbc.

Add a ncr5380_attach() routine which does part of the initialization, attaches
the scsibus, and does the addref/delref dance.

Revamp the VAX interrupt handling code. Make it compatible with all the
other ports. Clean up some things.

DMA support for the NCR 5380-equipped vs3100's.

branches: 1.22.2; 1.22.4; 1.22.6;
Fix minphys() on vax. While here, convert to bus.h.

Don't try to search for these devices on 4000/90. badaddr() should
be fixed for this arch also.

Don't try to disconnect SCSI disks. From Michael Kukat.
Now DEC disks also works in VAXstations :-)

branches: 1.19.2; 1.19.4;
Buggfixes for VS 4000/VLC. Basic support for VS4000/90 and MV4000/300.
From Michael Kukat.

Change vsbus to take a locator for all devices.
Figure out interrupt vector/mask on vsbus by forcing all devices to
generate interrupts in the match routine, like on unibus.

Another giant change: Allocate register space dynamic instead of compiled-in.
This is done on a physical page size basis, instead of virtual (as the
(on vax yet non-existing) bus_* routines does). This is similar to the
way uba allocation is done.

Simple hack to get at least PIO functionality out of the VS2000/3100 ncr5380.
Fixed by Jens Arvid Nilsson.

Adapt to the new scsipi_adapter interface.

Garbage-collect the open_target_lu and close_target_lu entry points from
struct scsipi_adapter; they were not used.

Add a scsipi_ioctl entry point to struct scsipi_adapter. This will be
used to issue ioctl commands to the host adapters.

Inspired by PR #6090, from Matt Jacob.

defopt DDB.

Wall cleaning.

Update for changes to config.

Add match code to detect more than one SCSI adapter on 3100.
Provided by Bertram Barth.

Merge scsipi branch in the mainline. This add support for ATAPI devices
(currently only CD-ROM drives on i386). The sys/dev/scsipi system provides 2
busses to which devices can attach (scsibus and atapibus). This needed to
change some include files and structure names in the low level scsi drivers.

branches: 1.8.2; 1.8.4;
Minimal changes to adapt to removal of NCR5380_PERMIT_RESELECT.
This driver should be updated to allow per-target control over
disconnect/reselect, but I will leave that to the port masters.

Patches to make VS2000 to work. From Ari Suutari.

Add a forgotten #ifdef DDB

branches: 1.5.6;
backout previous kprintf change

printf -> kprintf, sprintf -> ksprintf

(1) set scsi_link channel to either the appropriate channel (if a
multi-channel driver), or to SCSI_CHANNEL_ONLY_ONE if a
single-channel driver.
(2) use scsiprint() rather than a locally-defined autoconfig print
function, and kill any locally-defined print function.

change cfprint_t type definition to take a const char *, rather than
a char *, because that's what was really intended, and because
if the print function modifies the string, various things could become
unhappy (so the string should _not_ be modified).

SCSI and ST506 support for the VAXstation architecture.

Nuke unnused file.

SCSI and ST506 support for the VAXstation architecture.

Misc cleanup.

- move function declarations after struct declarations and
before global variables
- sort function declarations per actual implementation
- some KNF

No functional change.

Fix mmap(2) address for smg(4) as other framebuffers.

Now X.org server can render onto framebuffer (but inverted bitorder).
Should be pulled up to netbsd-10 and netbsd-9.

s/diplay/display/ and s/DIPPLAY/DISPLAY/ in comments.

Port rasops'fied smg(4) framebuffer driver for VS3100 from OpenBSD/vax.

This allows using more fonts other than 8x15 pixels on smg(4).
Tested on my VAXstation 3100/m30.

Note the bitorder of smg(4) VRAM is LSB first (i.e. LSBit is the
most left side pixel) and this requires more complicated changes
to bitmask ops in MI rasops(9) because several LE machines have
VRAMs whose MSBit is connected to the most left side pixel,
but for now I prepared smg(4) specific putchar and cursor ops
based on old luna68k omrasops.

Add a support for gpx(4) color framebuffer found on VAXstation 3100.

Poted from OpenBSD/vax. Note smg(4) monochrome onboard framebuffer
driver is also changed attached only if gpx(4) is not installed
or flags 1 is specified in config files, as OpenBSD did.

Tested on my VAXstation 3100/m30 with and without 8bpp gpx(4).
Revied on port-vax@ and "Please go ahead!" from ragge@.
https://mail-index.netbsd.org/port-vax/2023/01/thread1.html#004147

Worth to pullup to netbsd-10.

Make sure to call wsfont_init(9) as other framebuffer drivers.

Otherwise wsfont_find(9) always fails and wsdisplay(4) is not attached.
XXX: still no output on the framebuffer console on my VAXstation 3100/m30

branches: 1.61.6;
Merge thorpej-cfargs2.

branches: 1.60.8;
Merge thorpej-cfargs branch:

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

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

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

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

...and a sentinel value CFARG_EOL.

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

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

branches: 1.59.2;
malloc(9) -> kmem(9)

branches: 1.58.4; 1.58.12;
Use copyin(), not fusword().

branches: 1.57.10;
Update copyright notice for Ludd (remove clause 3 & 4).

KNF. Remove extra spaces. No functional change.

branches: 1.55.6; 1.55.24;
adjust for wsfont_find() change

branches: 1.54.8; 1.54.12;
Cleanup includes. Switch from <machine/XXX.h> to <sys/XXX.h> from
bus, cpu, and intr. Remove unneeded includes.

branches: 1.53.4;
kill extra whitespaces
reviewed by tsutsui@

Correct a few more bungled bcopy() -> memcpy() conversions.

bcopy -> memcpy

bzero -> memset

branches: 1.49.2;
use M_ZERO on malloc() and remove subsequent bzero().

branches: 1.48.4; 1.48.12;
Use a 0 sized softc / switch to PRIVALLOC.

Rototill the vax code. Switch to devicet/PRIV_ALLOC. Cleanup vax autoconf
code. Move to prototype definitions. staticfy, constify, avoid casting.
Use device_* accessors.

branches: 1.46.12; 1.46.16;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.45.10;
Merge some of the less invasive changes from the vmlocking branch:

- kthread, callout, devsw API changes
- select()/poll() improvements
- miscellaneous MT safety improvements

branches: 1.44.4;
Don't exceed array bounds (found by gcc 4.3).
XXX not sure if the fix is correct.

branches: 1.43.2; 1.43.4;
Fix caddr_t fallout.

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

branches: 1.41.14;
Add an extra cookie to the ioctl and mmap wsdisplay accessops that points
to the screen on which they are being called. The driver cannot guess
this by itself but it is needed to implement, at least, the getwschar and
putwschar functions in the correct place. There are no functional changes
yet.

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

branches: 1.40.4; 1.40.6; 1.40.8; 1.40.10; 1.40.12;
merge ktrace-lwp.

Now that the wsfont fonts are made static, we can no longer
reference the fonts directly (which was actually a wrong thing
to try to do). Instead, convert to using the wsfont API to
look for a 8x15 font, and use it if found.

Suggested by thorpej
Reviewed by drochner

branches: 1.38.2;
Shadowed variable fix.

__KERNEL_RCSID()

branches: 1.36.2;
- X pads bitmap rows to a word boundary.
- Handle WSDISPLAYIO_GCURMAX.

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.

alloc_attr -> allocattr

Approved by Matthias Drochner.

Missed to check all possible non-graphics bits on VS2k, causing the
machine to crash during boot. Reported and debugged with help of
Valeriy E. Ushakov.

branches: 1.29.4; 1.29.6;
Convert ioctl code to use EPASSTHROUGH instead of -1 or ENOTTY for
indicating an unhandled "command". ERESTART is -1, which can lead to
confusion. ERESTART has been moved to -3 and EPASSTHROUGH has been
placed at -4. No ioctl code should now return -1 anywhere. The
ioctl() system call is now properly restartable.

Move the dz driver to dev/dec, since it can be shared with pmax.

branches: 1.27.4; 1.27.8;
Giant update from Michael Kukat (michael@unixiron.org).
Fixes support for:
MicroVAX 3100m90
MicroVAX 3100m95
VAX 4000/100 (tested)
VAX 4000/105A (tested)
VAX 4000/108
VAX 4000/400 (tested)
VAX 4000/500 (tested)
VAX 4000/600

Use lkkbd. Add hardware cursor support. Use wsfont fonts instead of the
old QDSS fonts (support not finished). KNF cleanup.

remove extra paren so this compiles again.

Un __P.

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: 1.22.4;
Fix spelling error.

New callout mechanism with two major improvements over the old
timeout()/untimeout() API:
- Clients supply callout handle storage, thus eliminating problems of
resource allocation.
- Insertion and removal of callouts is constant time, important as
this facility is used quite a lot in the kernel.

The old timeout()/untimeout() API has been removed from the kernel.

CL* discarding.

update for changed struct wsdisplay_accessops:show_screen signature.
no functional changes

Allocate memory for printouts directly instead of (trying to) use the
yes uninitialized VM system.

branches: 1.17.2; 1.17.4; 1.17.6;
Don't try to search for these devices on 4000/90. badaddr() should
be fixed for this arch also.

Don't detect glass tty if the machine is a workstation.
Hint from Thomas Seidmann.

branches: 1.15.4;
Change vsbus to take a locator for all devices.
Figure out interrupt vector/mask on vsbus by forcing all devices to
generate interrupts in the match routine, like on unibus.

unsigned int -> int.

change the "mapchar" interface to return a "quality" or "match level"
arguments which allows to find approximations for characters which are
not present in a font

Another giant change: Allocate register space dynamic instead of compiled-in.
This is done on a physical page size basis, instead of virtual (as the
(on vax yet non-existing) bus_* routines does). This is similar to the
way uba allocation is done.

remove dummy "load_font" entries

blkclr -> memset.

fix problems in many d_mmap routines:
- returned EOPNOTSUPP rather than -1.
- no check for negative offset.
many of these fix potential security problems in these drivers.


XXX XXX XXX
the d_mmap cdev routine should be changed to have a prototype like:
paddr_t (*d_mmap) __P((dev_t, off_t, int));

by someone!

Support for VS4000/60.

KNF (only include one of <sys/{param,types}.h>).

Enable use of reversed and underlined text. The DEC Isolatin character
set now also work correctly. Add blinking cursor.

add a dummy "mapchar" function (1:1 mapping, hope the font is isolatin)

adapt to wscons changes (character output call)

Init some variables to not get trash on the screen.

Add virtual console support.

Rudimentary support for the VS3100 builtin graphics console.

vax/spx(4): fix a few X11-related bugs

- overwriting of saved screen pointer of emulation mode when switching
the framebuffer mode from mapped to dumb or vice-versa
- leaving the cursor on when switching away from emulation mode
- failure to restore the screen when changing back to emulation mode
because the saved screen pointer has been set to NULL
- panic on next VT switch, because now also the current screen pointer
is NULL

branches: 1.12.6; 1.12.12;
Merge thorpej-cfargs2.

branches: 1.11.8;
Merge thorpej-cfargs branch:

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

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

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

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

...and a sentinel value CFARG_EOL.

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

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

branches: 1.10.2;
malloc(9) -> kmem(9)

branches: 1.9.30;
KNF. Remove extra spaces. No functional change.

branches: 1.8.6;
Use snprintf instead of sprintf

Mark a potentially unused variable

branches: 1.6.2; 1.6.4;
From the "why was this not done before" box:
Implement WSDISPLAYIO_LINEBYTES so xwsfb works

branches: 1.5.2;
adjust for wsfont_find() change

branches: 1.4.8; 1.4.12;
Cleanup includes. Switch from <machine/XXX.h> to <sys/XXX.h> from
bus, cpu, and intr. Remove unneeded includes.

Make SPX work as console device on VAXstation 4000/9x.

branches: 1.2.2; 1.2.4; 1.2.6;
bzero -> memset

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.8; 1.1.10; 1.1.14;
Add new accelerated driver for SPX graphics found in some VAXstations,
remove old broken lcspx driver. This is a bugfixed and refactored
version of the spx driver originally developed by Blaz Antonic in 2005.
OK'ed by mhitch.

Catch up with this commit:

http://www.nerv.org/netbsd/?q=id:20210507T165558Z.d4aba9e0e053181f2a98ee4ee43012b50949921b

by which per slot tcs_used flag was obsoleted.

No need to initialize __BIT(0) of sc_slots_used here; it is zero anyway
before calling tcattach().

branches: 1.9.22;
whitespace

Make VAXstation 4000 TURBOchannel adaptor work.
PIO and IRQ tested on VS4000/60 and /96 with TC-USB (slhci) and PMAD-AA (le).
DMA is untested.
vax needs space to be mapped out, so memory space is pre-mapped for TC option
drivers not bus_space'ified yet, also providing custom bus_space methods for
this kludge.

branches: 1.7.12; 1.7.30; 1.7.46;
assignment to sc_dev is in tcattach, we don't have sc_dev

Split device_t/softc. pmax is tested on GXemul.
Compile test only for alpha and vax.

XXX: alpha/tc/tcasic.c calls tcattach() via config_found(9), but
XXX: pmax/tc/tcbus.c and vax/vsa/tc_vsbus.c calls tcattach() directly.
XXX: It looks horrible...

branches: 1.5.2; 1.5.6;
Cleanup includes. Switch from <machine/XXX.h> to <sys/XXX.h> from
bus, cpu, and intr. Remove unneeded includes.

branches: 1.4.22;
Remove clause 3 and 4 from TNF licenses

branches: 1.3.2; 1.3.4; 1.3.6;
Use device_*

Rototill the vax code. Switch to devicet/PRIV_ALLOC. Cleanup vax autoconf
code. Move to prototype definitions. staticfy, constify, avoid casting.
Use device_* accessors.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.10;
Preliminatry TC support.

Improve am7930 family drivers to share more code.
audioamd(4) on sparc, vsaudio(4) on vax, and bba(4) are.
- Remove complex and useless callbacks: onopen, onclose, and
indirect_{read,write}. This makes audioamd and vsaudio almost the same.
- Remove (already disabled) assembly fast interrupt path from audioamd(4).
cf. http://mail-index.netbsd.org/source-changes/2009/12/19/msg004585.html
- Use trigger_* method rather than start_* method. It's more suitable.
vsaudio(4) was tested by naru@, bba(4) was tested by tsutsui@.

Fix misuse of device_private(). sc_dev is device_t.

Merge isaki-audio2 branch, the overhaul of audio subsystem.
- Interrupt-oriented system rather than thread-oriented.
- Improve stability, quality and performance.
- Split playback and record cleanly. Improve halfduplex support.
- Many bugs are fixed including deadlocks, resource leaks, abuses, etc.
- Simplify audio filter mechanism. The encoding/channels/frequency
conversions are completely handled in the upper layer. So the hard-
ware driver only converts its hardware encoding (if necessary).
- audio_hw_if changes:
- Obsoletes query_encoding and add query_format instead.
- Obsoletes set_params and add set_format instead.
- Remove drain, setfd, mappage.
- The call sequences are changed.
- ioctl AUDIO_GETFD/SETFD, AUDIO_GETCHAN/SETCHAN are obsoleted.
- ioctl AUDIO_{QUERY,GET,SET}FORMAT are introduced.
- cleanup config attributes: au*conv and mulaw.
- All hardware drivers should follow it (I've done as much as possible).

Some file paths are changed:
- dev/audio.c -> dev/audio/audio.c (rewritten)
- dev/audiovar.h -> dev/audio/audiovar.h
- dev/audio_dai.h -> dev/audio/audio_dai.h
- dev/audio_if.h -> dev/audio/audio_if.h
- dev/audiobell.c -> dev/audio/audiobell.c
- dev/audiobellvar.h -> dev/audio/audiobellvar.h
- dev/mulaw.[ch] -> dev/audio/mulaw.[ch] + dev/audio/alaw.c

branches: 1.4.2;
White space -> TAB, fix indent, and add RCS Id.
No functional changes intended.

Use C99 style struct initializer to audio_hw_if.

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

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

HOWEVER! Some subsystems have

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

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

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

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

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

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

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

branches: 1.1.2; 1.1.18; 1.1.20; 1.1.22;
Add audio support for VAXstation VLC, 60 and 90 machines. Originally rom
Blaz Antonic and ported from OpenBSD by Björn Johannesso. Tested on VLC
and 4000/60.

Fix SCSI tranfer corruption on VAXstation 3100/m30 (KA420) on netboot.

See my post on port-vax@ for details:
https://mail-index.netbsd.org/port-vax/2024/02/16/msg004866.html
and "go ahead!" from ragge@. Should be pulled up to netbsd-10 and -9.

branches: 1.68.2;
vsbus vax: sprinkle volatile for register accesses

Merge thorpej-cfargs2.

branches: 1.66.8;
Merge thorpej-cfargs branch:

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

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

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

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

...and a sentinel value CFARG_EOL.

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

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

branches: 1.65.4; 1.65.14;
Rename min/max -> uimin/uimax for better honesty.

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

HOWEVER! Some subsystems have

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

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

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

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

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

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

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

branches: 1.64.2;
Fix bug causing DMA to/from user space fail. Fixes PR#49517.
This bug has been around since 2003.
Thanks to Martin Husemann for providing hardware to debug on!

branches: 1.63.8;
Update copyright notice for Ludd (remove clause 3 & 4).

KNF. Remove extra spaces. No functional change.

Add missing break - from Felix Deichmann in PR port-vax/49935

branches: 1.60.2; 1.60.14; 1.60.16;
Define and use VS_REGS_KA49 rather than magic numbers. From OpenBSD.

branches: 1.59.8; 1.59.14;
Cleanup includes. Switch from <machine/XXX.h> to <sys/XXX.h> from
bus, cpu, and intr. Remove unneeded includes.

branches: 1.58.4;
- Use lwp_getpcb() on VAX, clean from struct user usage.
- Include sys/user.h in MD proc.h .

kill extra whitespaces
reviewed by tsutsui@

Correct a few more bungled bcopy() -> memcpy() conversions.

bcopy -> memcpy

branches: 1.54.4; 1.54.12; 1.54.18;
Rototill the vax code. Switch to devicet/PRIV_ALLOC. Cleanup vax autoconf
code. Move to prototype definitions. staticfy, constify, avoid casting.
Use device_* accessors.

branches: 1.53.2; 1.53.6;
Reorganize a bit to be able to support multiple sgmaps.

branches: 1.52.20; 1.52.26;
Fix caddr_t fallout.

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

branches: 1.50.26;
merge ktrace-lwp.

s/locdesc_t/int/g

branches: 1.48.2;
adaptions to config_search() change, and minor autoconf fixes, mostly from Havard Eidnes

merge yamt-km branch.
- don't use managed mappings/backing objects for wired memory allocations.
save some resources like pv_entry. also fix (most of) PR/27030.
- simplify kernel memory management API.
- simplify pmap bootstrap of some ports.
- some related cleanups.

branches: 1.46.2; 1.46.4;
use the generated macros in locators.h rather than hard-coded numbers
to index the cf_loc[] array. reviewed by allen briggs.

Fix bug that were introduced together with the merge of nathanw_sa:
SCSI on VS2k/VS3100 stopped working. Spotted and fixed by Anders Hjalmarsson.
This fixes PR#25307.

branches: 1.44.2;
__KERNEL_RCSID()

branches: 1.43.2;
don't #include <sys/dkstat.h> where it is (appearently) unused

Use PAGE_SIZE rather than NBPG.

Merge the nathanw_sa branch.

Use aprint_normal() for cfprint routines.

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

Introduce a new routine, config_match(), which invokes the
cfattach->ca_match function in behalf of the caller. Use it
rather than invoking cfattach->ca_match directly.

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.

Don't include <sys/map.h>.

SIMPLEQ rototill:
- implement SIMPLEQ_REMOVE(head, elm, type, field). whilst it's O(n),
this mirrors the functionality of SLIST_REMOVE() (the other
singly-linked list type) and FreeBSD's STAILQ_REMOVE()
- remove the unnecessary elm arg from SIMPLEQ_REMOVE_HEAD().
this mirrors the functionality of SLIST_REMOVE_HEAD() (the other
singly-linked list type) and FreeBSD's STAILQ_REMOVE_HEAD()
- remove notes about SIMPLEQ not supporting arbitrary element removal
- use SIMPLEQ_FOREACH() instead of home-grown for loops
- use SIMPLEQ_EMPTY() appropriately
- use SIMPLEQ_*() instead of accessing sqh_first,sqh_last,sqe_next directly
- reorder manual page; be consistent about how the types are listed
- other minor cleanups

branches: 1.32.2; 1.32.8; 1.32.16;
Add a VAXANY type. Eventually to used in INSTALL / GENERIC to easily
include support for all VAX platforms

branches: 1.31.2;
Giant update from Michael Kukat (michael@unixiron.org).
Fixes support for:
MicroVAX 3100m90
MicroVAX 3100m95
VAX 4000/100 (tested)
VAX 4000/105A (tested)
VAX 4000/108
VAX 4000/400 (tested)
VAX 4000/500 (tested)
VAX 4000/600

eliminate TRUNC_PAGE() and ROUND_PAGE() in favor of their
lowercase counterparts. also, a little misc cleanup.

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

remove redundant vm includes.

Make the HDC9224 MFM device driver up-to-date; has been not-working
since NetBSD 1.2 (!) It also uses interrupts instead of polling now.
Also fix the DMA area locking between SCSI and MFM disks.
Still missing - floppy support.

branches: 1.26.2;
We use opt_cputype.h now.

branches: 1.25.2;
If we panic before the vsbus is found, don't panic again.

Extend asc driver to include support for the VS400/9x.
Add VS4000/9x support vsbus_dma.c

don't enable sgmap on ka49 yet.

expunge vm_offset_t and vm_size_t.
add bus_dma support for the vs4000 dma translation map (sgmap).
enhance the vsbus for the lance to work with it.
remove the sgmap init code from ka46/48/49.c

Revamp the VAX interrupt handling code. Make it compatible with all the
other ports. Clean up some things.

Add routines to copy to/from a user process from/to the vsbus DMA area.

branches: 1.19.2; 1.19.4; 1.19.6;
Rearrange the interrupt detection code to work on the (slightly
different) VAXstation 4000/90.

Clean up all bus handling stuff, it has become a mess the latest years.
Add a new bus; "ibus" that is the internal MicroVAX bus.

First towards use of bus.h routines on vax. Allocate DMA memory for
LANCE chip on vaxstations.

branches: 1.16.4;
Change vsbus to take a locator for all devices.
Figure out interrupt vector/mask on vsbus by forcing all devices to
generate interrupts in the match routine, like on unibus.

Basic KA48 (VAXstation 4000 VLC) support.
From Michael Kukat <michael@camaronet.de>

Another giant change: Allocate register space dynamic instead of compiled-in.
This is done on a physical page size basis, instead of virtual (as the
(on vax yet non-existing) bus_* routines does). This is similar to the
way uba allocation is done.

Search for NCR controllers, but not on VS4000/60.

Support for VS4000/60.

Rudimentary support for the VS3100 builtin graphics console.

Rewrite the autoconf code for VS3000's.
XXX - no support for any disks at all yet.

Remove __BROKEN_INDIRECT_CONFIG and change all drivers to use
config_search instead.

Update for changes to config.

Grab the PCB directly from the u-area, not by indirecting through VM
structures.

Update address struct to recognize KA420 motherboard.

Add a forgotten #ifdef. Remove debug printout.

backout previous kprintf change

printf -> kprintf, sprintf -> ksprintf

change cfprint_t type definition to take a const char *, rather than
a char *, because that's what was really intended, and because
if the print function modifies the string, various things could become
unhappy (so the string should _not_ be modified).

SCSI and ST506 support for the VAXstation architecture.

Remove unnecessary <sys/malloc.h>.

vsbus vax: sprinkle volatile for register accesses

Cleanup includes. Switch from <machine/XXX.h> to <sys/XXX.h> from
bus, cpu, and intr. Remove unneeded includes.

branches: 1.15.22;
Remove clause 3 and 4 from TNF licenses

branches: 1.14.2; 1.14.4;
Rototill the vax code. Switch to devicet/PRIV_ALLOC. Cleanup vax autoconf
code. Move to prototype definitions. staticfy, constify, avoid casting.
Use device_* accessors.

branches: 1.13.2; 1.13.6;
Reorganize a bit to be able to support multiple sgmaps.

branches: 1.12.20; 1.12.26;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.11.26;
merge ktrace-lwp.

branches: 1.10.16;
Fix GCC3'ism's