Declare IOPortBase for mips, as done for xorg-server.

Fix build for sgimips, which still uses xorg-server.old.

Avoid multiple definitions of the same variable.

Sync with xorg-server:

Report which settings are chosen per a config file in the log file.

Sync with xorg-server: Fix typo in comment.

Cherry-pick Xorg version independent changes from xorg-server.

Normalize #include paths.
Call LogInit() for logging to /var/log/X68k.%s.log as Xorg and Xsun servers.
Fix a suspicious chunk disabled on xfree 4.x migration as sunKbd.c does.
Restore video mode properly on exit even on CRT Mode 19 (640x480 31kHz VGA).
Add ModeDef for 640x480x4bit PseudoColor.
Avoid a use of __UNVOLATILE(3).
Remove unnecessary pointer casts from malloc(3).
Use exact-width interger types properly for register accesses etc.

More cherry-picks to sync with xorg-server:

Remove more redundant command option arg checks.
Avoid dumb DevicePtr casts.

Cherry-pick to sync with xorg-server:

Inform detected keyboard type and layout via LogMessage().
Remove a leftover variable for non-XKB autorepeat.
Remove redundant command option arg checks.
Put probed framebuffer info to a log file by default.

Sync with xorg-server:

> Call LogInit() for logging to /var/log/Xsun.%s.log as Xorg server.

TAB/space cleanup.

Cherry-pick non-Xorg-1.20-specific fixes from xorg-server dir.

Use proper ANSI offsetof(3) to specify framebuffer offset in struct.
Add prototype declarations for CG2 functions.
Implement functions to restore palette settings on exiting Xserver.
Explicitly initialize origColormapValid for readability.
Fix LED defintions to match xkb/xkbInit.c.
Remove unused functions required to handle non-XKB autorepeat.
Initialize ModMap dynamically using keymap data per each keyboard.
Remove now unused ModMap data for each keyboard.
Use "empty" for rmlvo model and layout to avoid lingering default settings.
Trailing whitespace.

Note it looks there is some serious performance regression
between Xorg 1.10 and 1.20 on rendering root_weave to root window
on 3/60 bwtwo mono server.

Import WIP Xorg-Server-1.10'fied ancient monolithic Xsun servers.

There are still several issue especially around XKB stuff,
but both Xsun and XsunMono servers are confirmed working with
bwtwo on 3/60 and tme, and also cgtwo on tme.
See my port-sun3@ posts for more details:
https://mail-index.netbsd.org/port-sun3/2020/07/17/msg000157.html

Note a newer Xorg Server 1.20 based version is also ready
so these 1.10 sources are imported as referenece for people
who will try to port other X11R6 servers.

Remove #ifdef XKB conditional.

It has been mandatory on Xorg:
https://cgit.freedesktop.org/xorg/xserver/commit/?id=40877c6680863bd6a8475f2bb0c54df55bcf0b0e

Use AllocDevicePair() to initialize input devices in InitInput().

This should have been done on the initial X11R7'fied imoprt as
upstream xnest did:
https://cgit.freedesktop.org/xorg/xserver/commit?id=32ce5c83a504d2cafd2b19ed628b40032ef347b3

Tested and no visible regression on XM6i.

Remove clause 3 and 4 from X68k server files written by Yasushi Yamasaki.

I've finally contacted with Yamasaki-san and he kindly answered
"no objection to change them to 2 clause license" in private mail.
Diffs to be committed have also been confirmed by him.
We appreciate all his contribution to early NetBSD/x68k.

ad provde the cursor function...

Add compatibility to xorg-server-120
- Convert display modes arguments to const.
- Provive bswap* in misc.h
- Provide missing cursor function

apply fixes for CVEs 2017-12176 to 2017-12187 to xorg-server 1.10.
several of the changes were in new code, and the DGA code had moved.

--
From 1b1d4c04695dced2463404174b50b3581dbd857b Mon Sep 17 00:00:00 2001
From: Nathan Kidd <nkidd@opentext.com>
Date: Sun, 21 Dec 2014 01:10:03 -0500
Subject: hw/xfree86: unvalidated lengths

This addresses:
CVE-2017-12180 in XFree86-VidModeExtension
CVE-2017-12181 in XFree86-DGA
CVE-2017-12182 in XFree86-DRI
--
From 211e05ac85a294ef361b9f80d689047fa52b9076 Mon Sep 17 00:00:00 2001
From: Michal Srb <msrb@suse.com>
Date: Fri, 7 Jul 2017 17:21:46 +0200
Subject: Xi: Test exact size of XIBarrierReleasePointer

Otherwise a client can send any value of num_barriers and cause reading or swapping of values on heap behind the receive buffer.
--
From 4ca68b878e851e2136c234f40a25008297d8d831 Mon Sep 17 00:00:00 2001
From: Nathan Kidd <nkidd@opentext.com>
Date: Fri, 9 Jan 2015 10:09:14 -0500
Subject: dbe: Unvalidated variable-length request in ProcDbeGetVisualInfo
(CVE-2017-12177)

v2: Protect against integer overflow (Alan Coopersmith)
--
From 55caa8b08c84af2b50fbc936cf334a5a93dd7db5 Mon Sep 17 00:00:00 2001
From: Nathan Kidd <nkidd@opentext.com>
Date: Fri, 9 Jan 2015 11:43:05 -0500
Subject: xfixes: unvalidated lengths (CVE-2017-12183)

v2: Use before swap (Jeremy Huddleston Sequoia)

v3: Fix wrong XFixesCopyRegion checks (Alan Coopersmith)
--
From 859b08d523307eebde7724fd1a0789c44813e821 Mon Sep 17 00:00:00 2001
From: Nathan Kidd <nkidd@opentext.com>
Date: Wed, 24 Dec 2014 16:22:18 -0500
Subject: Xi: fix wrong extra length check in ProcXIChangeHierarchy
(CVE-2017-12178)
--
From 9c23685009aa96f4b861dcc5d2e01dbee00c4dd9 Mon Sep 17 00:00:00 2001
From: Michal Srb <msrb@suse.com>
Date: Fri, 7 Jul 2017 17:04:03 +0200
Subject: os: Make sure big requests have sufficient length.

A client can send a big request where the 32B "length" field has value
0. When the big request header is removed and the length corrected,
the value will underflow to 0xFFFFFFFF. Functions processing the
request later will think that the client sent much more data and may
touch memory beyond the receive buffer.
--
From b747da5e25be944337a9cd1415506fc06b70aa81 Mon Sep 17 00:00:00 2001
From: Nathan Kidd <nkidd@opentext.com>
Date: Fri, 9 Jan 2015 10:15:46 -0500
Subject: Unvalidated extra length in ProcEstablishConnection (CVE-2017-12176)

Fix -O0 build; <machine/bwx.h> should be included after ".arch ev56" pseudo-op.

prune xrefs to xorgconfig

Avoid legacy VGA I/O port access on MIPS. Xorg converts the I/O port
address to a pointer and dereferences it, and then seg faults.

This fixes Xorg on my Lemote YeeLoong netbook.

initial import of existing netbsd xorg-server 1.10 sources in the
xorg-server.old subdir.