[3.16.y-ckt stable] Patch "drm/radeon: fix 1 RB harvest config setup for TN/RL" has been added to staging queue
Luis Henriques
luis.henriques at canonical.com
Thu Mar 19 10:12:06 UTC 2015
This is a note to let you know that I have just added a patch titled
drm/radeon: fix 1 RB harvest config setup for TN/RL
to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree
which can be found at:
http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.16.y-queue
This patch is scheduled to be released in version 3.16.7-ckt9.
If you, or anyone else, feels it should not be added to this tree, please
reply to this email.
For more information about the 3.16.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable
Thanks.
-Luis
------
>From 6cc01b1f6669105680d79fe6b3eb8baeb0bd1df3 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher at amd.com>
Date: Thu, 19 Feb 2015 16:02:15 -0500
Subject: drm/radeon: fix 1 RB harvest config setup for TN/RL
commit dbfb00c3e7e18439f2ebf67fe99bf7a50b5bae1e upstream.
The logic was reversed from what the hw actually exposed.
Fixes graphics corruption in certain harvest configurations.
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
drivers/gpu/drm/radeon/ni.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index 699bd1083e1f..1d0c08de1731 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -1085,12 +1085,12 @@ static void cayman_gpu_init(struct radeon_device *rdev)
if ((rdev->config.cayman.max_backends_per_se == 1) &&
(rdev->flags & RADEON_IS_IGP)) {
- if ((disabled_rb_mask & 3) == 1) {
- /* RB0 disabled, RB1 enabled */
- tmp = 0x11111111;
- } else {
+ if ((disabled_rb_mask & 3) == 2) {
/* RB1 disabled, RB0 enabled */
tmp = 0x00000000;
+ } else {
+ /* RB0 disabled, RB1 enabled */
+ tmp = 0x11111111;
}
} else {
tmp = gb_addr_config & NUM_PIPES_MASK;
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