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authorAlex Deucher <alexander.deucher@amd.com>2014-06-18 00:01:08 +0400
committerAlex Deucher <alexander.deucher@amd.com>2014-07-01 19:16:10 +0400
commit0c78a44964db3d483b0c09a8236e0fe123aa9cfc (patch)
tree0380d43f2ff81df3af20b30c9f19a4547f90b51f /drivers/gpu/drm/radeon/trinity_dpm.c
parent09f95d5b8ca64a9ebb5e206ed936c1a70dc8e9c8 (diff)
downloadlinux-0c78a44964db3d483b0c09a8236e0fe123aa9cfc.tar.xz
drm/radeon: enable bapm by default on desktop TN/RL boards
bapm enabled the GPU and CPU to share TDP headroom. It was disabled by default since some laptops hung when it was enabled in conjunction with dpm. It seems to be stable on desktop boards and fixes hangs on boot with dpm enabled on certain boards, so enable it by default on desktop boards. bug: https://bugs.freedesktop.org/show_bug.cgi?id=72921 Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/trinity_dpm.c')
-rw-r--r--drivers/gpu/drm/radeon/trinity_dpm.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/trinity_dpm.c b/drivers/gpu/drm/radeon/trinity_dpm.c
index 2a2822c03329..20da6ff183df 100644
--- a/drivers/gpu/drm/radeon/trinity_dpm.c
+++ b/drivers/gpu/drm/radeon/trinity_dpm.c
@@ -1874,7 +1874,15 @@ int trinity_dpm_init(struct radeon_device *rdev)
for (i = 0; i < SUMO_MAX_HARDWARE_POWERLEVELS; i++)
pi->at[i] = TRINITY_AT_DFLT;
- pi->enable_bapm = false;
+ /* 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.
+ */
+ if (rdev->flags & RADEON_IS_MOBILITY)
+ pi->enable_bapm = false;
+ else
+ pi->enable_bapm = true;
pi->enable_nbps_policy = true;
pi->enable_sclk_ds = true;
pi->enable_gfx_power_gating = true;