[src/trunk]: src remove vga@isa and pcdisplay@isa from i386 GENERIC, and crea...

[mrg <mrg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/2e485480448d
branches:  trunk
changeset: 336582:2e485480448d
user:      mrg <mrg%NetBSD.org@localhost>
date:      Sat Mar 07 07:28:37 2015 +0000

description:
remove vga@isa and pcdisplay@isa from i386 GENERIC, and create a new
LEGACY kernel that includes them instead.  now radeon@pci is able to
properly claim wsdisplay0 on i386 systems, and radeondrmkms has a good
chance of working.

this "fixes" PR#49290.

diffstat:

 distrib/notes/i386/contents |   6 +++++-
 etc/etc.i386/Makefile.inc   |   3 ++-
 sys/arch/i386/conf/GENERIC  |  11 ++++++-----
 sys/arch/i386/conf/LEGACY   |  14 ++++++++++++++
 4 files changed, 27 insertions(+), 7 deletions(-)

diffs (92 lines):

diff -r 0b69fd1bf211 -r 2e485480448d distrib/notes/i386/contents
--- a/distrib/notes/i386/contents       Sat Mar 07 03:25:19 2015 +0000
+++ b/distrib/notes/i386/contents       Sat Mar 07 07:28:37 2015 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: contents,v 1.27 2012/08/17 20:10:53 riz Exp $
+.\"    $NetBSD: contents,v 1.28 2015/03/07 07:28:37 mrg Exp $
 .\"
 .\" Copyright (c) 1999-2005 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -70,6 +70,10 @@
 .
 The installation kernel.
 .
+.                      It Pa netbsd-LEGACY.gz
+.
+The kernel containing support for ISA (VGA and PC Display) display devices.
+.
 .                      It Pa netbsd-INSTALL_XEN3PAE_DOMU.gz
 .                      It Pa netbsd-INSTALL_XEN3_DOMU.gz
 .                      It Pa netbsd-XEN3PAE_DOMU.gz
diff -r 0b69fd1bf211 -r 2e485480448d etc/etc.i386/Makefile.inc
--- a/etc/etc.i386/Makefile.inc Sat Mar 07 03:25:19 2015 +0000
+++ b/etc/etc.i386/Makefile.inc Sat Mar 07 07:28:37 2015 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile.inc,v 1.67 2012/07/04 13:54:20 reinoud Exp $
+#      $NetBSD: Makefile.inc,v 1.68 2015/03/07 07:28:37 mrg Exp $
 #
 #      etc.i386/Makefile.inc -- i386-specific etc Makefile targets
 #
@@ -8,6 +8,7 @@
 
 KERNEL_SETS=   GENERIC
 KERNEL_SETS+=  MONOLITHIC
+KERNEL_SETS+=  LEGACY
 KERNEL_SETS+=  XEN3_DOM0
 KERNEL_SETS+=  XEN3_DOMU
 KERNEL_SETS+=  XEN3PAE_DOM0
diff -r 0b69fd1bf211 -r 2e485480448d sys/arch/i386/conf/GENERIC
--- a/sys/arch/i386/conf/GENERIC        Sat Mar 07 03:25:19 2015 +0000
+++ b/sys/arch/i386/conf/GENERIC        Sat Mar 07 07:28:37 2015 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: GENERIC,v 1.1119 2015/02/13 18:57:47 nonaka Exp $
+# $NetBSD: GENERIC,v 1.1120 2015/03/07 07:28:37 mrg Exp $
 #
 # GENERIC machine description file
 #
@@ -22,7 +22,7 @@
 
 options        INCLUDE_CONFIG_FILE     # embed config file in kernel binary
 
-#ident                 "GENERIC-$Revision: 1.1119 $"
+#ident                 "GENERIC-$Revision: 1.1120 $"
 
 maxusers       64              # estimated number of users
 
@@ -537,14 +537,15 @@
 #options       PMS_DISABLE_POWERHOOK   # Disable PS/2 reset on resume
 options        PMS_SYNAPTICS_TOUCHPAD  # Enable support for Synaptics Touchpads
 options        PMS_ELANTECH_TOUCHPAD   # Enable support for Elantech Touchpads
-vga0           at isa?
+# vga@isa and pcdisplay@isa are disabled; see PR#49290
+#vga0          at isa?
 vga*           at pci? dev ? function ?
-pcdisplay0     at isa?                 # CGA, MDA, EGA, HGA
+#pcdisplay0    at isa?                 # CGA, MDA, EGA, HGA
 genfb*         at pci? dev ? function ?
 options        VCONS_DRAW_INTR
 #machfb*       at pci? dev ? function ? # ATI Mach64 framebuffer driver
 wsdisplay*     at vga? console ?
-wsdisplay*     at pcdisplay? console ?
+#wsdisplay*    at pcdisplay? console ?
 wsdisplay*     at wsemuldisplaydev?
 #wsdisplay*    at machfb? console ?
 wskbd*         at pckbd? console ?
diff -r 0b69fd1bf211 -r 2e485480448d sys/arch/i386/conf/LEGACY
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/i386/conf/LEGACY Sat Mar 07 07:28:37 2015 +0000
@@ -0,0 +1,14 @@
+#      $NetBSD: LEGACY,v 1.1 2015/03/07 07:28:37 mrg Exp $
+
+# LEGACY kernel -- includes vga@isa and pcdisplay@isa for pre-PCI
+# systems, due to significant pain making them fail to attach when
+# drmkms has not already attached.  see PR#49290 for details.
+
+include "arch/i386/conf/GENERIC"
+
+vga0           at isa?
+pcdisplay0     at isa?                 # CGA, MDA, EGA, HGA
+wsdisplay*     at pcdisplay? console ?
+
+# XXX we could turn off all sorts of other modern features in this
+# configuration, but that is left for future work.