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| author | Deepak S <deepak.s@intel.com> | 2014-08-18 10:35:27 -0700 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-09-03 11:03:51 +0200 |
| commit | 98a2e5f94275b6aafb12a3650937f6c54222cdc2 (patch) | |
| tree | efffa4e086738e36ffdd9f6c5a713bd591baa341 /drivers/gpu | |
| parent | 31e4b89acbd7b19c9a8557e6e660a583a0b97daa (diff) | |
drm/i915: Bring UP Power Wells before disabling RC6.
We need do forcewake before Disabling RC6, This is what the BIOS
expects while going into suspend.
v2: updated commit message. (Daniel)
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Deepak S <deepak.s@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index b1b3a6b892c6..a381c9997a25 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3533,8 +3533,14 @@ static void valleyview_disable_rps(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; + /* we're doing forcewake before Disabling RC6, + * This what the BIOS expects when going into suspend */ + gen6_gt_force_wake_get(dev_priv, FORCEWAKE_ALL); + I915_WRITE(GEN6_RC_CONTROL, 0); + gen6_gt_force_wake_put(dev_priv, FORCEWAKE_ALL); + gen6_disable_rps_interrupts(dev); } |