This is a note to let you know that I've just added the patch titled
drm/radeon/atom: initialize more atom interpretor elements to 0
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-radeon-atom-initialize-more-atom-interpretor-elements-to-0.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 42a21826dc54583cdb79cc8477732e911ac9c376 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@xxxxxxx>
Date: Tue, 30 Jul 2013 00:22:53 -0400
Subject: drm/radeon/atom: initialize more atom interpretor elements to 0
From: Alex Deucher <alexander.deucher@xxxxxxx>
commit 42a21826dc54583cdb79cc8477732e911ac9c376 upstream.
The ProcessAuxChannel table on some rv635 boards assumes
the divmul members are initialized to 0 otherwise we get
an invalid fb offset since it has a bad mask set when
setting the fb base. While here initialize all the
atom interpretor elements to 0.
Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=60639
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/radeon/atom.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/drivers/gpu/drm/radeon/atom.c
+++ b/drivers/gpu/drm/radeon/atom.c
@@ -1222,12 +1222,17 @@ int atom_execute_table(struct atom_conte
int r;
mutex_lock(&ctx->mutex);
+ /* reset data block */
+ ctx->data_block = 0;
/* reset reg block */
ctx->reg_block = 0;
/* reset fb window */
ctx->fb_base = 0;
/* reset io mode */
ctx->io_mode = ATOM_IO_MM;
+ /* reset divmul */
+ ctx->divmul[0] = 0;
+ ctx->divmul[1] = 0;
r = atom_execute_table_locked(ctx, index, params);
mutex_unlock(&ctx->mutex);
return r;
Patches currently in stable-queue which might be from alexander.deucher@xxxxxxx are
queue-3.4/drm-radeon-fix-combios-tables-on-older-cards.patch
queue-3.4/drm-radeon-fix-endian-issues-with-dp-handling-v3.patch
queue-3.4/drm-radeon-improve-dac-adjust-heuristics-for-legacy-pdac.patch
queue-3.4/drm-radeon-atom-initialize-more-atom-interpretor-elements-to-0.patch
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