diff options
| author | Imre Deak <imre.deak@intel.com> | 2013-10-01 18:11:26 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-18 10:54:58 -0700 |
| commit | b38b7659dabd2b931a5eebde9868c2a7416ad3e8 (patch) | |
| tree | 1b0d10acdc9afd1e23c6b1428f2121f5711e5548 /drivers/gpu | |
| parent | fd557527293e5c632ea51fbb9ae1faf08a1bf0aa (diff) | |
drm/i915: fix rps.vlv_work initialization
commit 671952a2a290a90017c64e75b7dd0343b0d005b4 upstream.
During driver loading we are initializing rps.vlv_work in
valleyview_enable_rps() via the rps.delayed_resume_work delayed work.
This is too late since we are using vlv_work already via
i915_driver_load()->intel_uncore_sanitize()->
intel_disable_gt_powersave(). This at least leads to the following
kernel warning:
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
Fix this by initialzing vlv_work before we call intel_uncore_sanitize().
The regression was introduced in
commit 7dcd2677ea912573d9ed4bcd629b0023b2d11505
Author: Konstantin Khlebnikov <khlebnikov@openvz.org>
Date: Wed Jul 17 10:22:58 2013 +0400
drm/i915: fix long-standing SNB regression in power consumption
after resume
though there was no good reason to initialize the static vlv_work from
another delayed work to begin with (especially since this will happen
multiple times).
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=69397
Tested-by: shui yangwei <yangweix.shui@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index f2f8585882f..cad04828994 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3603,8 +3603,6 @@ static void valleyview_enable_rps(struct drm_device *dev) dev_priv->rps.rpe_delay), dev_priv->rps.rpe_delay); - INIT_DELAYED_WORK(&dev_priv->rps.vlv_work, vlv_rps_timer_work); - valleyview_set_rps(dev_priv->dev, dev_priv->rps.rpe_delay); /* requires MSI enabled */ @@ -5567,6 +5565,8 @@ void intel_pm_init(struct drm_device *dev) INIT_DELAYED_WORK(&dev_priv->rps.delayed_resume_work, intel_gen6_powersave_work); + + INIT_DELAYED_WORK(&dev_priv->rps.vlv_work, vlv_rps_timer_work); } int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u8 mbox, u32 *val) |