This is a note to let you know that I've just added the patch titled
drm/radeon/dpm: disable ss on Cayman
to the 3.12-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-dpm-disable-ss-on-cayman.patch
and it can be found in the queue-3.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From c745fe611ca42295c9d91d8e305d27983e9132ef Mon Sep 17 00:00:00 2001
From: Alex Deucher <[email protected]>
Date: Mon, 9 Dec 2013 17:46:59 -0500
Subject: drm/radeon/dpm: disable ss on Cayman
From: Alex Deucher <[email protected]>
commit c745fe611ca42295c9d91d8e305d27983e9132ef upstream.
Spread spectrum seems to cause hangs when dynamic clock
switching is enabled. Disable it for now. This does not
affect performance or the amount of power saved. Tracked
down by Martin Andersson.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=69723
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/radeon/rv770_dpm.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/gpu/drm/radeon/rv770_dpm.c
+++ b/drivers/gpu/drm/radeon/rv770_dpm.c
@@ -2328,6 +2328,12 @@ void rv770_get_engine_memory_ss(struct r
pi->mclk_ss = radeon_atombios_get_asic_ss_info(rdev, &ss,
ASIC_INTERNAL_MEMORY_SS,
0);
+ /* disable ss, causes hangs on some cayman boards */
+ if (rdev->family == CHIP_CAYMAN) {
+ pi->sclk_ss = false;
+ pi->mclk_ss = false;
+ }
+
if (pi->sclk_ss || pi->mclk_ss)
pi->dynamic_ss = true;
else
Patches currently in stable-queue which might be from [email protected]
are
queue-3.12/drm-edid-add-quirk-for-bpc-in-samsung-np700g7a-s01pl-notebook.patch
queue-3.12/drm-radeon-fix-sideport-problems-on-certain-rs690-boards.patch
queue-3.12/drm-radeon-dpm-disable-ss-on-cayman.patch
queue-3.12/drm-radeon-fix-typo-in-cik_copy_dma.patch
queue-3.12/drm-radeon-check-for-0-count-in-speaker-allocation-and-sad-code.patch
queue-3.12/drm-radeon-fix-asic-gfx-values-for-scrapper-asics.patch
queue-3.12/drm-radeon-add-missing-display-tiling-setup-for-oland.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
