This is a note to let you know that I've just added the patch titled
drm/radeon: fix HD6790, HD6570 backend programming
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-fix-hd6790-hd6570-backend-programming.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@vger.kernel.org> know about it.
>From 95c4b23ec4e2fa5604df229ddf134e31d7b3b378 Mon Sep 17 00:00:00 2001
From: Jerome Glisse <jgli...@redhat.com>
Date: Thu, 31 May 2012 19:00:24 -0400
Subject: drm/radeon: fix HD6790, HD6570 backend programming
From: Jerome Glisse <jgli...@redhat.com>
commit 95c4b23ec4e2fa5604df229ddf134e31d7b3b378 upstream.
Without this bit sets we get broken rendering and
lockups.
fglrx sets this bit.
Bugs that should be fixed by this patch :
https://bugs.freedesktop.org/show_bug.cgi?id=49792
https://bugzilla.kernel.org/show_bug.cgi?id=43207
https://bugs.freedesktop.org/show_bug.cgi?id=39282
Signed-off-by: Jerome Glisse <jgli...@redhat.com>
Acked-by: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Dave Airlie <airl...@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/gpu/drm/radeon/evergreen.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -2178,9 +2178,9 @@ static void evergreen_gpu_init(struct ra
WREG32(CC_SYS_RB_BACKEND_DISABLE, rb);
WREG32(GC_USER_RB_BACKEND_DISABLE, rb);
WREG32(CC_GC_SHADER_PIPE_CONFIG, sp);
- }
+ }
- grbm_gfx_index |= SE_BROADCAST_WRITES;
+ grbm_gfx_index = INSTANCE_BROADCAST_WRITES | SE_BROADCAST_WRITES;
WREG32(GRBM_GFX_INDEX, grbm_gfx_index);
WREG32(RLC_GFX_INDEX, grbm_gfx_index);
Patches currently in stable-queue which might be from jgli...@redhat.com are
queue-3.4/drm-radeon-fix-hd6790-hd6570-backend-programming.patch
queue-3.4/drm-radeon-fix-regression-in-ums-cs-ioctl.patch
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