This is a note to let you know that I've just added the patch titled
drm/radeon/TN: only enable bapm on MSI systems
to the 3.14-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-tn-only-enable-bapm-on-msi-systems.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 730a336c33a3398d65896e8ee3ef9f5679fe30a9 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@xxxxxxx>
Date: Mon, 21 Jul 2014 10:41:13 -0400
Subject: drm/radeon/TN: only enable bapm on MSI systems
From: Alex Deucher <alexander.deucher@xxxxxxx>
commit 730a336c33a3398d65896e8ee3ef9f5679fe30a9 upstream.
There still seem to be stability problems with other systems.
Bug:
https://bugs.freedesktop.org/show_bug.cgi?id=72921
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/radeon/trinity_dpm.c | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
--- a/drivers/gpu/drm/radeon/trinity_dpm.c
+++ b/drivers/gpu/drm/radeon/trinity_dpm.c
@@ -1877,15 +1877,16 @@ int trinity_dpm_init(struct radeon_devic
for (i = 0; i < SUMO_MAX_HARDWARE_POWERLEVELS; i++)
pi->at[i] = TRINITY_AT_DFLT;
- /* There are stability issues reported on latops with
- * bapm installed when switching between AC and battery
- * power. At the same time, some desktop boards hang
- * if it's not enabled and dpm is enabled.
+ /* There are stability issues reported on with
+ * bapm enabled when switching between AC and battery
+ * power. At the same time, some MSI boards hang
+ * if it's not enabled and dpm is enabled. Just enable
+ * it for MSI boards right now.
*/
- if (rdev->flags & RADEON_IS_MOBILITY)
- pi->enable_bapm = false;
- else
+ if (rdev->pdev->subsystem_vendor == 0x1462)
pi->enable_bapm = true;
+ else
+ pi->enable_bapm = false;
pi->enable_nbps_policy = true;
pi->enable_sclk_ds = true;
pi->enable_gfx_power_gating = true;
Patches currently in stable-queue which might be from alexander.deucher@xxxxxxx are
queue-3.14/drm-radeon-enable-bapm-by-default-on-desktop-tn-rl-boards.patch
queue-3.14/drm-radeon-tn-only-enable-bapm-on-msi-systems.patch
queue-3.14/drm-radeon-tweak-accel_working2-query-for-hawaii.patch
queue-3.14/drm-radeon-dpm-handle-voltage-info-fetching-on-hawaii.patch
queue-3.14/drm-radeon-atom-add-new-voltage-fetch-function-for-hawaii.patch
queue-3.14/drm-radeon-set-vm-base-addr-using-the-pfp-v2.patch
queue-3.14/drm-radeon-re-enable-dpm-by-default-on-btc.patch
queue-3.14/drm-radeon-load-the-lm63-driver-for-an-lm64-thermal-chip.patch
queue-3.14/drm-radeon-re-enable-dpm-by-default-on-cayman.patch
--
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