Remove duplicated / slightly-tweaked loadustp() (load user segment table)
routines from all of the m68k ports using the shared pmap. Instead, in
pmap_init(), set up a function pointer to the appropriate mmu_load_urp*()
function in mmu_subr.s.

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: 1.82.2;
Refactor the 68040 writeback() from each m68k port's trap handler into a
shared copy: m68040_writeback(). It is essentially a copy of the Atari
version, with some minor cosmetic tweaks and one small performance optimization
from the mvme68k port.

Tested by rjs@ on a Quadra 950. (Thanks!)

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

branches: 1.80.2; 1.80.4;
add a special rule to build m68k/fpu.c to avoid passing -msoft-float.
fixes GCC 6 kernel builds that use this file.

move common/bus_dma/ -> dev/bus_dma/

branches: 1.78.2;
Finally switch PSX16550 fast serial board driver to using MI com(4) driver.
Based on isaki@'s patch and debugged by both isaki@ and tsutsui@.

PSX16550 specific hardware infomation is taken from Human68k's PSXIO driver:
http://retropc.net/x68000/software/hardware/psx16550/

XXX1: TL16C550C seems to have some timing critical issue around THRE interrupt
XXX2: auto hardware flow control of TL16C550 is not implemented in MI com(4)

branches: 1.77.2;
Add powsw(4) for x68k power switch. It substitutes for a part about
power switch handler of pow(4) deleted before.
Benefits than pow(4):
- separate a front switch (= powsw0) and an EXPWON line (= powsw1)
completely. Only powsw0 is enabled in GENERIC by default.
- prevent chattering in some hardware individuals.
thank you for a report and a test: Yasushi Oshima and Y.Sugahara.

Obsolete pow(4) and rtcalarm(8). Discussed in port-x68k@.
Probably the combination of pow(4) ioctl and rtcalarm(8) does
not work for a long time, and nobody uses them.
I'll rewrite a part about power switch handler as a new device.

Merge copy-and-pasted fpu_probe() function (to share it among more m68k ports).
Tested on TT030, Sun3/80, and X68030.

branches: 1.74.2;
Welcome to 5.99.53! Merge rmind-uvmplock branch:

- Reorganize locking in UVM and provide extra serialisation for pmap(9).
New lock order: [vmpage-owner-lock] -> pmap-lock.

- Simplify locking in some pmap(9) modules by removing P->V locking.

- Use lock object on vmobjlock (and thus vnode_t::v_interlock) to share
the locks amongst UVM objects where necessary (tmpfs, layerfs, unionfs).

- Rewrite and optimise x86 TLB shootdown code, make it simpler and cleaner.
Add TLBSTATS option for x86 to collect statistics about TLB shootdowns.

- Unify /dev/mem et al in MI code and provide required locking (removes
kernel-lock on some ports). Also, avoid cache-aliasing issues.

Thanks to Andrew Doran and Joerg Sonnenberger, as their initial patches
formed the core changes of this branch.

branches: 1.73.2;
IODEVbase is the same address as intiobase, so make it an alias macro
and remove now almost empty x68k_init.c.

Include files.ata for atapibus at umass.

branches: 1.71.2;
fix PR 6724 - convert m68k options to defflag's. this means that
M680[12346] are now available from opt_m68k_arch.h. FPSP meantioned
in the PR has already been fixed, and i could not find any more.

i built these kernels to ensure i did not break their builds:

amiga: GENERIC DRACO
atari: HADES FALCON MILAN-PCIIDE
mac68k: GENERIC
sun2: GENERIC
sun3: GENERIC GENERIC3X
cesfic: attempted GENERIC, does not build due to lack of machine/bus.h
hp300: GENERIC
luna68k: GENERIC
mvme68k: GENERIC
news68k: GENERIC
next68k: GENERIC
x68k: GENERIC

branches: 1.70.2; 1.70.4;
Use bus_dmamem_common.

Take out mainbus(4)-related code from autoconf.c and make it mainbus.c.

Make sram(4) a hardware device.
# I wrote this in 2001 :-)

x68k pow(4) now uses MI sysmon_pswitch framework. suggested by tsutsui@.
- Make MD poffd(8) retire, and use MI powerd(8) instead of it.
- Make /dev/pow1 retire, because nobody holds /dev/pow0 any longer.
Use /dev/pow0 for pow(4) ioctl.
- POWIOCSSIGNAL ioctl which is for poffd(8) is also obsoleted.

Make pow(4) a hardware device.
Now pow(4) uses intio_intr_establish() which is a common interrupt
routine, but not powtrap which is a device specific routine.

branches: 1.65.6; 1.65.10; 1.65.18;
Since files.wscons et al. are included by ~all ports anyway, include
them in the mi "files" file, and remove include statements from md files.
These shouldn't pull in additional kernel code when not in use, so it
shouldn't do any harm except a risk of namespace collisions which
should be easy to fix.

Remove COMPAT_HPUX.

branches: 1.63.6;
Interrupt handling changes, in discussion since February:

- Reduce available SPL levels for hardware devices to none, vm, sched, high.
- Acquire kernel_lock only for interrupts at IPL_VM.
- Implement threaded soft interrupts.

branches: 1.62.2; 1.62.18; 1.62.20; 1.62.26;
Add MI softintr(9) support for x68k with common m68k/softintr.c.
Tested by isaki@ and Yasushi Oshima.

XXX: x68k/dev/com.c should be rewritten to use MI com(4).

branches: 1.61.26;
merge ktrace-lwp.

branches: 1.60.8;
use a new "addr" locator for grf instead of the unit to match the instance
to the hardware. use a new "grfaddr" locator to match ites to their grfs,
instead of requiring that their unit numbers be the same.

branches: 1.59.4;
Refer to the common m68k procfs_machdep.c instead of the x68k one,
which has now been removed.

files.usb (rev 1.54) needs files.wscons for uep.

Move spc into the MI area.

Include compat/hpux/files.hpux.
Untested.

Since everyone uses clock_subr.c (or should, if they don't currently),
list it in conf/files instead of in every port's files.*.

branches: 1.54.2;
FPU_EMULATE moved to arch/m68k/conf/files.m68k

Add bmd, memory disk driver for Nereid bank memory.

merge pmap.c for all 4k-page motorola-MMU (or compatible) m68k platforms.

use a merged sys_machdep.c for all the motorola-MMU m68k platforms.

enhance the common m68k db_memrw.c to handle read-only kernel text
and switch all the motorola-MMU m68k platforms to use it.

merge the 12 copies of vm_machdep.c on the m68k platforms.
clean up some other stuff along the way, including:
- use m68k/cacheops.*, remove duplicates from cpu.h.
- centralize a few declarations in (all the copies of) cpu.h.
- define M68K_VAC on platforms which have a VAC.
- switch the sun platforms to the (now common) proc_trampoline().
- do the phys_map thang on the sun platforms too, no reason not to.

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.

Add driver for ScanLogic SL811HS/T USB Host Controller.
XXX It's experimental code yet.

For x68k: USB part of Nereid USB/Ethernet/memory board
For ISA: ISA USB Host board from Morphy planning

branches: 1.46.2;
Rename the audio "bus" attribute audiobus to avoid confusion with audio
device.

Backout previous.
It was a garbage; atatat already commited the fix in another way.

ELF!!

- convert usage of "defopt" to "defflag" where the relevant option does
not support a value (e.g., it's to be used as "options FOO" instead of
"options FOO=xxx"). options that take a value were converted to
defparam recently.
- minor whitespace & formatting cleanups

- replace "defopt" with "defparam" for options which must take a value,
as config(8) will warn for value-less defparam options
- minor whitespace/formatting cleanup
- consolidate opt_tcp_recvspace.h and opt_tcp_sendspace.h into opt_tcp_space.h

cleanup:
options SPACE TAB
makeoptions TAB
psuedo-device TAB
remove trailing whitespace
replace multiple spaces -> tabs
options "FOO" -> options FOO
options "FOO=bar" -> options FOO=bar
options "FOO=\"bar\"" -> options FOO="\"bar\""

Support an ethernet part of Nereid.
Nereid is the board of ethernet/USB/memory for X68k
developed by X-PowerStation, a japanese X68k circle.
See http://xps.jp/ but only written in japanese.

branches: 1.39.2; 1.39.6; 1.39.8;
Add an e_trapsignal member to struct emul, so that emulated processes can
send the appropriate signal depending on the trap type.

X68k built-in voice synthesizer.

A bit of ELF support. From scw.

branches: 1.36.2;
Add machdep file for procfs. Currently only used for linux-style
/proc/cpuinfo (only active when procfs is mounted with -o linux).
For ports other than the i386 this currently produces an empty
string.

Use MI clock_subr.c.

Use MI md_root.c.

branches: 1.33.4;
defopt FPSP.

defopt M680[2346]0.

Move par under intio.

Add the RAIDframe device major to the machine-dependent config files
so that the right entries get added to dev_name2blk[]. Needed for / on RAID.
(Whoops! I missed checking these in when adding the RAID_AUTOCONFIG stuff.)

Add missing `major' entries: md and fd.

branches: 1.28.2; 1.28.8;
Use m68k common cacheops.c.

pseudo-device -> defpseudo, per grammar change in config(8).

Only declare block major numbers for devices which can be the root device.

Add COMPAT_SVR4 for m68k.

branches: 1.24.4;
defopt EXTENDED_MEMORY and ITE_KERNEL_ATTR.

Merged minoura_x68k_bus_h branch.

branches: 1.22.2;
Added COMPAT_LINUX support.

Switched to MI zs driver.

Build pmap_boostrap.o without profiling; we can't call mcount before the
mmu is enabled!

Remove "class" declarations, and add "devclass" declarations where
appropriate. Fix several inconsistencies between device class and
attributes. Mostly from Chris Demetriou.

Amiga uses the common m68k/sig_machdep.c now. Also moved its definition from
the other 68k ports' files.${port} to arch/m68k/conf/files.m68k.

Update for changes to config.

branches: 1.16.2;
Use common m68k/sig_machdep.c.

Support of MK-HA1 Mach-2 SCSI adaptor.

Pulldown from marc-pcmcia branch: minimal changes to change x68k port's
"com" (now "xcom") driver to avoid name collision with the more
heaviliy-used "com" driver.

Added 'arp' to Neptune-X ethernet interface.
Removed local if_se entry (no longer works.)

Build the 68060 support package in the kernel build dir.
XXX PCB_ONFAULT is still hardwired to 64 in netbsd060sp.S.

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: 1.10.2; 1.10.4;
Remove redundant file directives

Separate bcopy and copypage stuff from copy.s

branches: 1.8.4;
- Use New ite_tv.c
- Remove unused ite_in.c and kernel_font.c line

"md" is declared in sys/conf/files, now.

Add fpu.c, delete unneeded fpe_emulate.c line.

rename: ramdisk => md

edit include path, config again.

fixed major number of vnd and cd. (PR#2635)

branches: 1.2.2;
Add 'rd' ram-disk pseudo-device.

branches: 1.1.1;
Initial revision

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: 1.82.2;
Refactor the 68040 writeback() from each m68k port's trap handler into a
shared copy: m68040_writeback(). It is essentially a copy of the Atari
version, with some minor cosmetic tweaks and one small performance optimization
from the mvme68k port.

Tested by rjs@ on a Quadra 950. (Thanks!)

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

branches: 1.80.2;
add a special rule to build m68k/fpu.c to avoid passing -msoft-float.
fixes GCC 6 kernel builds that use this file.

move common/bus_dma/ -> dev/bus_dma/

branches: 1.78.2;
Finally switch PSX16550 fast serial board driver to using MI com(4) driver.
Based on isaki@'s patch and debugged by both isaki@ and tsutsui@.

PSX16550 specific hardware infomation is taken from Human68k's PSXIO driver:
http://retropc.net/x68000/software/hardware/psx16550/

XXX1: TL16C550C seems to have some timing critical issue around THRE interrupt
XXX2: auto hardware flow control of TL16C550 is not implemented in MI com(4)

branches: 1.77.2;
Add powsw(4) for x68k power switch. It substitutes for a part about
power switch handler of pow(4) deleted before.
Benefits than pow(4):
- separate a front switch (= powsw0) and an EXPWON line (= powsw1)
completely. Only powsw0 is enabled in GENERIC by default.
- prevent chattering in some hardware individuals.
thank you for a report and a test: Yasushi Oshima and Y.Sugahara.

Obsolete pow(4) and rtcalarm(8). Discussed in port-x68k@.
Probably the combination of pow(4) ioctl and rtcalarm(8) does
not work for a long time, and nobody uses them.
I'll rewrite a part about power switch handler as a new device.

Merge copy-and-pasted fpu_probe() function (to share it among more m68k ports).
Tested on TT030, Sun3/80, and X68030.

branches: 1.74.2;
Welcome to 5.99.53! Merge rmind-uvmplock branch:

- Reorganize locking in UVM and provide extra serialisation for pmap(9).
New lock order: [vmpage-owner-lock] -> pmap-lock.

- Simplify locking in some pmap(9) modules by removing P->V locking.

- Use lock object on vmobjlock (and thus vnode_t::v_interlock) to share
the locks amongst UVM objects where necessary (tmpfs, layerfs, unionfs).

- Rewrite and optimise x86 TLB shootdown code, make it simpler and cleaner.
Add TLBSTATS option for x86 to collect statistics about TLB shootdowns.

- Unify /dev/mem et al in MI code and provide required locking (removes
kernel-lock on some ports). Also, avoid cache-aliasing issues.

Thanks to Andrew Doran and Joerg Sonnenberger, as their initial patches
formed the core changes of this branch.

branches: 1.73.2;
IODEVbase is the same address as intiobase, so make it an alias macro
and remove now almost empty x68k_init.c.

Include files.ata for atapibus at umass.

branches: 1.71.2;
fix PR 6724 - convert m68k options to defflag's. this means that
M680[12346] are now available from opt_m68k_arch.h. FPSP meantioned
in the PR has already been fixed, and i could not find any more.

i built these kernels to ensure i did not break their builds:

amiga: GENERIC DRACO
atari: HADES FALCON MILAN-PCIIDE
mac68k: GENERIC
sun2: GENERIC
sun3: GENERIC GENERIC3X
cesfic: attempted GENERIC, does not build due to lack of machine/bus.h
hp300: GENERIC
luna68k: GENERIC
mvme68k: GENERIC
news68k: GENERIC
next68k: GENERIC
x68k: GENERIC

branches: 1.70.2; 1.70.4;
Use bus_dmamem_common.

Take out mainbus(4)-related code from autoconf.c and make it mainbus.c.

Make sram(4) a hardware device.
# I wrote this in 2001 :-)

x68k pow(4) now uses MI sysmon_pswitch framework. suggested by tsutsui@.
- Make MD poffd(8) retire, and use MI powerd(8) instead of it.
- Make /dev/pow1 retire, because nobody holds /dev/pow0 any longer.
Use /dev/pow0 for pow(4) ioctl.
- POWIOCSSIGNAL ioctl which is for poffd(8) is also obsoleted.

Make pow(4) a hardware device.
Now pow(4) uses intio_intr_establish() which is a common interrupt
routine, but not powtrap which is a device specific routine.

branches: 1.65.6; 1.65.10; 1.65.18;
Since files.wscons et al. are included by ~all ports anyway, include
them in the mi "files" file, and remove include statements from md files.
These shouldn't pull in additional kernel code when not in use, so it
shouldn't do any harm except a risk of namespace collisions which
should be easy to fix.

Remove COMPAT_HPUX.

branches: 1.63.6;
Interrupt handling changes, in discussion since February:

- Reduce available SPL levels for hardware devices to none, vm, sched, high.
- Acquire kernel_lock only for interrupts at IPL_VM.
- Implement threaded soft interrupts.

branches: 1.62.2; 1.62.18; 1.62.20; 1.62.26;
Add MI softintr(9) support for x68k with common m68k/softintr.c.
Tested by isaki@ and Yasushi Oshima.

XXX: x68k/dev/com.c should be rewritten to use MI com(4).

branches: 1.61.26;
merge ktrace-lwp.

branches: 1.60.8;
use a new "addr" locator for grf instead of the unit to match the instance
to the hardware. use a new "grfaddr" locator to match ites to their grfs,
instead of requiring that their unit numbers be the same.

branches: 1.59.4;
Refer to the common m68k procfs_machdep.c instead of the x68k one,
which has now been removed.

files.usb (rev 1.54) needs files.wscons for uep.

Move spc into the MI area.

Include compat/hpux/files.hpux.
Untested.

Since everyone uses clock_subr.c (or should, if they don't currently),
list it in conf/files instead of in every port's files.*.

branches: 1.54.2;
FPU_EMULATE moved to arch/m68k/conf/files.m68k

Add bmd, memory disk driver for Nereid bank memory.

merge pmap.c for all 4k-page motorola-MMU (or compatible) m68k platforms.

use a merged sys_machdep.c for all the motorola-MMU m68k platforms.

enhance the common m68k db_memrw.c to handle read-only kernel text
and switch all the motorola-MMU m68k platforms to use it.

merge the 12 copies of vm_machdep.c on the m68k platforms.
clean up some other stuff along the way, including:
- use m68k/cacheops.*, remove duplicates from cpu.h.
- centralize a few declarations in (all the copies of) cpu.h.
- define M68K_VAC on platforms which have a VAC.
- switch the sun platforms to the (now common) proc_trampoline().
- do the phys_map thang on the sun platforms too, no reason not to.

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.

Add driver for ScanLogic SL811HS/T USB Host Controller.
XXX It's experimental code yet.

For x68k: USB part of Nereid USB/Ethernet/memory board
For ISA: ISA USB Host board from Morphy planning

branches: 1.46.2;
Rename the audio "bus" attribute audiobus to avoid confusion with audio
device.

Backout previous.
It was a garbage; atatat already commited the fix in another way.

ELF!!

- convert usage of "defopt" to "defflag" where the relevant option does
not support a value (e.g., it's to be used as "options FOO" instead of
"options FOO=xxx"). options that take a value were converted to
defparam recently.
- minor whitespace & formatting cleanups

- replace "defopt" with "defparam" for options which must take a value,
as config(8) will warn for value-less defparam options
- minor whitespace/formatting cleanup
- consolidate opt_tcp_recvspace.h and opt_tcp_sendspace.h into opt_tcp_space.h

cleanup:
options SPACE TAB
makeoptions TAB
psuedo-device TAB
remove trailing whitespace
replace multiple spaces -> tabs
options "FOO" -> options FOO
options "FOO=bar" -> options FOO=bar
options "FOO=\"bar\"" -> options FOO="\"bar\""

Support an ethernet part of Nereid.
Nereid is the board of ethernet/USB/memory for X68k
developed by X-PowerStation, a japanese X68k circle.
See http://xps.jp/ but only written in japanese.

branches: 1.39.2; 1.39.6; 1.39.8;
Add an e_trapsignal member to struct emul, so that emulated processes can
send the appropriate signal depending on the trap type.

X68k built-in voice synthesizer.

A bit of ELF support. From scw.

branches: 1.36.2;
Add machdep file for procfs. Currently only used for linux-style
/proc/cpuinfo (only active when procfs is mounted with -o linux).
For ports other than the i386 this currently produces an empty
string.

Use MI clock_subr.c.

Use MI md_root.c.

branches: 1.33.4;
defopt FPSP.

defopt M680[2346]0.

Move par under intio.

Add the RAIDframe device major to the machine-dependent config files
so that the right entries get added to dev_name2blk[]. Needed for / on RAID.
(Whoops! I missed checking these in when adding the RAID_AUTOCONFIG stuff.)

Add missing `major' entries: md and fd.

branches: 1.28.2; 1.28.8;
Use m68k common cacheops.c.

pseudo-device -> defpseudo, per grammar change in config(8).

Only declare block major numbers for devices which can be the root device.

Add COMPAT_SVR4 for m68k.

branches: 1.24.4;
defopt EXTENDED_MEMORY and ITE_KERNEL_ATTR.

Merged minoura_x68k_bus_h branch.

branches: 1.22.2;
Added COMPAT_LINUX support.

Switched to MI zs driver.

Build pmap_boostrap.o without profiling; we can't call mcount before the
mmu is enabled!

Remove "class" declarations, and add "devclass" declarations where
appropriate. Fix several inconsistencies between device class and
attributes. Mostly from Chris Demetriou.

Amiga uses the common m68k/sig_machdep.c now. Also moved its definition from
the other 68k ports' files.${port} to arch/m68k/conf/files.m68k.

Update for changes to config.

branches: 1.16.2;
Use common m68k/sig_machdep.c.

Support of MK-HA1 Mach-2 SCSI adaptor.

Pulldown from marc-pcmcia branch: minimal changes to change x68k port's
"com" (now "xcom") driver to avoid name collision with the more
heaviliy-used "com" driver.

Added 'arp' to Neptune-X ethernet interface.
Removed local if_se entry (no longer works.)

Build the 68060 support package in the kernel build dir.
XXX PCB_ONFAULT is still hardwired to 64 in netbsd060sp.S.

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: 1.10.2; 1.10.4;
Remove redundant file directives

Separate bcopy and copypage stuff from copy.s

branches: 1.8.4;
- Use New ite_tv.c
- Remove unused ite_in.c and kernel_font.c line

"md" is declared in sys/conf/files, now.

Add fpu.c, delete unneeded fpe_emulate.c line.

rename: ramdisk => md

edit include path, config again.

fixed major number of vnd and cd. (PR#2635)

branches: 1.2.2;
Add 'rd' ram-disk pseudo-device.

branches: 1.1.1;
Initial revision

Refactor the 68040 writeback() from each m68k port's trap handler into a
shared copy: m68040_writeback(). It is essentially a copy of the Atari
version, with some minor cosmetic tweaks and one small performance optimization
from the mvme68k port.

Tested by rjs@ on a Quadra 950. (Thanks!)

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

branches: 1.80.2;
add a special rule to build m68k/fpu.c to avoid passing -msoft-float.
fixes GCC 6 kernel builds that use this file.

move common/bus_dma/ -> dev/bus_dma/

branches: 1.78.2;
Finally switch PSX16550 fast serial board driver to using MI com(4) driver.
Based on isaki@'s patch and debugged by both isaki@ and tsutsui@.

PSX16550 specific hardware infomation is taken from Human68k's PSXIO driver:
http://retropc.net/x68000/software/hardware/psx16550/

XXX1: TL16C550C seems to have some timing critical issue around THRE interrupt
XXX2: auto hardware flow control of TL16C550 is not implemented in MI com(4)

branches: 1.77.2;
Add powsw(4) for x68k power switch. It substitutes for a part about
power switch handler of pow(4) deleted before.
Benefits than pow(4):
- separate a front switch (= powsw0) and an EXPWON line (= powsw1)
completely. Only powsw0 is enabled in GENERIC by default.
- prevent chattering in some hardware individuals.
thank you for a report and a test: Yasushi Oshima and Y.Sugahara.

Obsolete pow(4) and rtcalarm(8). Discussed in port-x68k@.
Probably the combination of pow(4) ioctl and rtcalarm(8) does
not work for a long time, and nobody uses them.
I'll rewrite a part about power switch handler as a new device.

Merge copy-and-pasted fpu_probe() function (to share it among more m68k ports).
Tested on TT030, Sun3/80, and X68030.

branches: 1.74.2;
Welcome to 5.99.53! Merge rmind-uvmplock branch:

- Reorganize locking in UVM and provide extra serialisation for pmap(9).
New lock order: [vmpage-owner-lock] -> pmap-lock.

- Simplify locking in some pmap(9) modules by removing P->V locking.

- Use lock object on vmobjlock (and thus vnode_t::v_interlock) to share
the locks amongst UVM objects where necessary (tmpfs, layerfs, unionfs).

- Rewrite and optimise x86 TLB shootdown code, make it simpler and cleaner.
Add TLBSTATS option for x86 to collect statistics about TLB shootdowns.

- Unify /dev/mem et al in MI code and provide required locking (removes
kernel-lock on some ports). Also, avoid cache-aliasing issues.

Thanks to Andrew Doran and Joerg Sonnenberger, as their initial patches
formed the core changes of this branch.

branches: 1.73.2;
IODEVbase is the same address as intiobase, so make it an alias macro
and remove now almost empty x68k_init.c.

Include files.ata for atapibus at umass.

branches: 1.71.2;
fix PR 6724 - convert m68k options to defflag's. this means that
M680[12346] are now available from opt_m68k_arch.h. FPSP meantioned
in the PR has already been fixed, and i could not find any more.

i built these kernels to ensure i did not break their builds:

amiga: GENERIC DRACO
atari: HADES FALCON MILAN-PCIIDE
mac68k: GENERIC
sun2: GENERIC
sun3: GENERIC GENERIC3X
cesfic: attempted GENERIC, does not build due to lack of machine/bus.h
hp300: GENERIC
luna68k: GENERIC
mvme68k: GENERIC
news68k: GENERIC
next68k: GENERIC
x68k: GENERIC

branches: 1.70.2; 1.70.4;
Use bus_dmamem_common.

Take out mainbus(4)-related code from autoconf.c and make it mainbus.c.

Make sram(4) a hardware device.
# I wrote this in 2001 :-)

x68k pow(4) now uses MI sysmon_pswitch framework. suggested by tsutsui@.
- Make MD poffd(8) retire, and use MI powerd(8) instead of it.
- Make /dev/pow1 retire, because nobody holds /dev/pow0 any longer.
Use /dev/pow0 for pow(4) ioctl.
- POWIOCSSIGNAL ioctl which is for poffd(8) is also obsoleted.

Make pow(4) a hardware device.
Now pow(4) uses intio_intr_establish() which is a common interrupt
routine, but not powtrap which is a device specific routine.

branches: 1.65.6; 1.65.10; 1.65.18;
Since files.wscons et al. are included by ~all ports anyway, include
them in the mi "files" file, and remove include statements from md files.
These shouldn't pull in additional kernel code when not in use, so it
shouldn't do any harm except a risk of namespace collisions which
should be easy to fix.

Remove COMPAT_HPUX.

branches: 1.63.6;
Interrupt handling changes, in discussion since February:

- Reduce available SPL levels for hardware devices to none, vm, sched, high.
- Acquire kernel_lock only for interrupts at IPL_VM.
- Implement threaded soft interrupts.

branches: 1.62.2; 1.62.18; 1.62.20; 1.62.26;
Add MI softintr(9) support for x68k with common m68k/softintr.c.
Tested by isaki@ and Yasushi Oshima.

XXX: x68k/dev/com.c should be rewritten to use MI com(4).

branches: 1.61.26;
merge ktrace-lwp.

branches: 1.60.8;
use a new "addr" locator for grf instead of the unit to match the instance
to the hardware. use a new "grfaddr" locator to match ites to their grfs,
instead of requiring that their unit numbers be the same.

branches: 1.59.4;
Refer to the common m68k procfs_machdep.c instead of the x68k one,
which has now been removed.

files.usb (rev 1.54) needs files.wscons for uep.

Move spc into the MI area.

Include compat/hpux/files.hpux.
Untested.

Since everyone uses clock_subr.c (or should, if they don't currently),
list it in conf/files instead of in every port's files.*.

branches: 1.54.2;
FPU_EMULATE moved to arch/m68k/conf/files.m68k

Add bmd, memory disk driver for Nereid bank memory.

merge pmap.c for all 4k-page motorola-MMU (or compatible) m68k platforms.

use a merged sys_machdep.c for all the motorola-MMU m68k platforms.

enhance the common m68k db_memrw.c to handle read-only kernel text
and switch all the motorola-MMU m68k platforms to use it.

merge the 12 copies of vm_machdep.c on the m68k platforms.
clean up some other stuff along the way, including:
- use m68k/cacheops.*, remove duplicates from cpu.h.
- centralize a few declarations in (all the copies of) cpu.h.
- define M68K_VAC on platforms which have a VAC.
- switch the sun platforms to the (now common) proc_trampoline().
- do the phys_map thang on the sun platforms too, no reason not to.

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.

Add driver for ScanLogic SL811HS/T USB Host Controller.
XXX It's experimental code yet.

For x68k: USB part of Nereid USB/Ethernet/memory board
For ISA: ISA USB Host board from Morphy planning

branches: 1.46.2;
Rename the audio "bus" attribute audiobus to avoid confusion with audio
device.

Backout previous.
It was a garbage; atatat already commited the fix in another way.

ELF!!

- convert usage of "defopt" to "defflag" where the relevant option does
not support a value (e.g., it's to be used as "options FOO" instead of
"options FOO=xxx"). options that take a value were converted to
defparam recently.
- minor whitespace & formatting cleanups

- replace "defopt" with "defparam" for options which must take a value,
as config(8) will warn for value-less defparam options
- minor whitespace/formatting cleanup
- consolidate opt_tcp_recvspace.h and opt_tcp_sendspace.h into opt_tcp_space.h

cleanup:
options SPACE TAB
makeoptions TAB
psuedo-device TAB
remove trailing whitespace
replace multiple spaces -> tabs
options "FOO" -> options FOO
options "FOO=bar" -> options FOO=bar
options "FOO=\"bar\"" -> options FOO="\"bar\""

Support an ethernet part of Nereid.
Nereid is the board of ethernet/USB/memory for X68k
developed by X-PowerStation, a japanese X68k circle.
See http://xps.jp/ but only written in japanese.

branches: 1.39.2; 1.39.6; 1.39.8;
Add an e_trapsignal member to struct emul, so that emulated processes can
send the appropriate signal depending on the trap type.

X68k built-in voice synthesizer.

A bit of ELF support. From scw.

branches: 1.36.2;
Add machdep file for procfs. Currently only used for linux-style
/proc/cpuinfo (only active when procfs is mounted with -o linux).
For ports other than the i386 this currently produces an empty
string.

Use MI clock_subr.c.

Use MI md_root.c.

branches: 1.33.4;
defopt FPSP.

defopt M680[2346]0.

Move par under intio.

Add the RAIDframe device major to the machine-dependent config files
so that the right entries get added to dev_name2blk[]. Needed for / on RAID.
(Whoops! I missed checking these in when adding the RAID_AUTOCONFIG stuff.)

Add missing `major' entries: md and fd.

branches: 1.28.2; 1.28.8;
Use m68k common cacheops.c.

pseudo-device -> defpseudo, per grammar change in config(8).

Only declare block major numbers for devices which can be the root device.

Add COMPAT_SVR4 for m68k.

branches: 1.24.4;
defopt EXTENDED_MEMORY and ITE_KERNEL_ATTR.

Merged minoura_x68k_bus_h branch.

branches: 1.22.2;
Added COMPAT_LINUX support.

Switched to MI zs driver.

Build pmap_boostrap.o without profiling; we can't call mcount before the
mmu is enabled!

Remove "class" declarations, and add "devclass" declarations where
appropriate. Fix several inconsistencies between device class and
attributes. Mostly from Chris Demetriou.

Amiga uses the common m68k/sig_machdep.c now. Also moved its definition from
the other 68k ports' files.${port} to arch/m68k/conf/files.m68k.

Update for changes to config.

branches: 1.16.2;
Use common m68k/sig_machdep.c.

Support of MK-HA1 Mach-2 SCSI adaptor.

Pulldown from marc-pcmcia branch: minimal changes to change x68k port's
"com" (now "xcom") driver to avoid name collision with the more
heaviliy-used "com" driver.

Added 'arp' to Neptune-X ethernet interface.
Removed local if_se entry (no longer works.)

Build the 68060 support package in the kernel build dir.
XXX PCB_ONFAULT is still hardwired to 64 in netbsd060sp.S.

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: 1.10.2; 1.10.4;
Remove redundant file directives

Separate bcopy and copypage stuff from copy.s

branches: 1.8.4;
- Use New ite_tv.c
- Remove unused ite_in.c and kernel_font.c line

"md" is declared in sys/conf/files, now.

Add fpu.c, delete unneeded fpe_emulate.c line.

rename: ramdisk => md

edit include path, config again.

fixed major number of vnd and cd. (PR#2635)

branches: 1.2.2;
Add 'rd' ram-disk pseudo-device.

branches: 1.1.1;
Initial revision