Remove unused field d_poll from struct cdevsw.

OK miod@ mpi@

Match direct `seltrue' usages with a corresponding `seltrue_kqfilter'.

This ensure spec_kqfilter() won't return an error when spec_poll()
returns success for a given device.

ok visa@

Add new device xp(4), preliminary support for LUNA's I/O processor.

This is a straightforward port of NetBSD/luna68k by Izumi Tsutsui(*),
and makes LUNA's I/O auxiliary processor (called XP, actuall

Add new device xp(4), preliminary support for LUNA's I/O processor.

This is a straightforward port of NetBSD/luna68k by Izumi Tsutsui(*),
and makes LUNA's I/O auxiliary processor (called XP, actually
HD647180) possible to load and run programs.

(*): http://mail-index.netbsd.org/source-changes/2016/12/03/msg079493.html

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Add pcic(4) support on luna88k.

This is basically glue codes attaching pcic(4) at cbus(4/luna88k),
based on src/sys/dev/isa/i82365_isa{,subr}.c.

Tested on some ne(4) network interface cards, wdc(4)

Add pcic(4) support on luna88k.

This is basically glue codes attaching pcic(4) at cbus(4/luna88k),
based on src/sys/dev/isa/i82365_isa{,subr}.c.

Tested on some ne(4) network interface cards, wdc(4) with a CF memory
card, and com(4) with an old XJACK modem card. Currently wi(4) does
not work yet.

suggestions and ok miod@

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Add generic driver for "NEC PC-9801(*) extension board slot" on
LUNA-88K.

LUNA-88K{,2} has one or two slot(s) that can attach the extension
board designed for PC-9801. This driver provides dedicate

Add generic driver for "NEC PC-9801(*) extension board slot" on
LUNA-88K.

LUNA-88K{,2} has one or two slot(s) that can attach the extension
board designed for PC-9801. This driver provides dedicated mmap(2)
and capability for waiting specified interrupt on that slot so that we
can use the extension board from userland program.

(*)PC-9801 is a Japanese popular personal computer, mainly used in
1980-90's. (see http://en.wikipedia.org/wiki/NEC_PC-9801)

ok miod@, and man pages jmc@

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LCD device driver support for luna88k, first step.
ok miod@

Add new file <machine/conf.h> and clean up console code and structures.
From miod@