This is a note to let you know that I've just added the patch titled
drm/radeon: Try harder to avoid HW cursor ending on a multiple of 128
columns.
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-try-harder-to-avoid-hw-cursor-ending-on-a-multiple-of-128-columns.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 <[email protected]> know about it.
>From f60ec4c7df043df81e62891ac45383d012afe0da Mon Sep 17 00:00:00 2001
From: Michel Dänzer <[email protected]>
Date: Tue, 17 Jul 2012 19:02:09 +0200
Subject: drm/radeon: Try harder to avoid HW cursor ending on a multiple of 128
columns.
From: Michel Dänzer <[email protected]>
commit f60ec4c7df043df81e62891ac45383d012afe0da upstream.
This could previously fail if either of the enabled displays was using a
horizontal resolution that is a multiple of 128, and only the leftmost column
of the cursor was (supposed to be) visible at the right edge of that display.
The solution is to move the cursor one pixel to the left in that case.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=33183
Signed-off-by: Michel Dänzer <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/radeon/radeon_cursor.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/radeon/radeon_cursor.c
+++ b/drivers/gpu/drm/radeon/radeon_cursor.c
@@ -262,8 +262,14 @@ int radeon_crtc_cursor_move(struct drm_c
if (!(cursor_end & 0x7f))
w--;
}
- if (w <= 0)
+ if (w <= 0) {
w = 1;
+ cursor_end = x - xorigin + w;
+ if (!(cursor_end & 0x7f)) {
+ x--;
+ WARN_ON_ONCE(x < 0);
+ }
+ }
}
}
Patches currently in stable-queue which might be from [email protected] are
queue-3.4/drm-radeon-try-harder-to-avoid-hw-cursor-ending-on-a-multiple-of-128-columns.patch
queue-3.4/drm-radeon-fix-bo-creation-retry-path.patch
queue-3.4/drm-radeon-fix-fence-related-segfault-in-cs.patch
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