[src/netbsd-1-6]: src/doc ticket 1274

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

details:   https://anonhg.NetBSD.org/src/rev/afbbf6a861f9
branches:  netbsd-1-6
changeset: 530447:afbbf6a861f9
user:      grant <grant%NetBSD.org@localhost>
date:      Tue Jun 24 10:07:59 2003 +0000

description:
ticket 1274

diffstat:

 doc/CHANGES-1.6.2 |  16 +++++++++++++++-
 1 files changed, 15 insertions(+), 1 deletions(-)

diffs (27 lines):

diff -r 08edee1876ae -r afbbf6a861f9 doc/CHANGES-1.6.2
--- a/doc/CHANGES-1.6.2 Tue Jun 24 10:07:47 2003 +0000
+++ b/doc/CHANGES-1.6.2 Tue Jun 24 10:07:59 2003 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: CHANGES-1.6.2,v 1.1.2.69 2003/06/24 10:02:02 grant Exp $
+#      $NetBSD: CHANGES-1.6.2,v 1.1.2.70 2003/06/24 10:07:59 grant Exp $
 
 A complete list of changes from NetBSD 1.6.1 to NetBSD 1.6.2:
 
@@ -847,3 +847,17 @@
        This should fix "serial console hiccups on sysinst" problem
        reported by Mauricio <raub at kudria.com> on port-newsmips.
        [tsutsui, ticket #1286]
+
+sys/arch/macppc/dev/ofb.c                      1.29-1.30, 1.33
+
+       Update OFB_ENABLE_CACHE to search for a empty bat that does not
+       conflict the USER_SR or one of the kernel SRs.
+
+       for ofb_enable_cache, turn on the BAT_M bit as well to prevent
+       the framebuffer from getting scrambled on MP systems.
+
+       Initialize the framebuffer BAT with BAT_G, too.  This marks the region
+       as (G)uarded, protecting it from the processor being too aggressive in
+       reordering and prefetching.  This allows OFB_ENABLE_CACHE to work on my
+       Powerbook G4.
+       [briggs, ticket #1274]