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drm/i915: Force RC6 restore after system resume and reset

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In order for the RC6 autoenable worker to take any action, RC6 first
must be disabled. Upon resume or reset, the sw state may be stale and so
we require a forced restore.

Fixes: b7137e0cf1 ("drm/i915: Defer enabling rc6 til after we submit...")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160824092701.19178-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
This commit is contained in:
Chris Wilson 2016-08-24 10:27:01 +01:00
parent 79cf219a6a
commit abc80abde5
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/i915/i915_drv.c
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@ -1560,6 +1560,7 @@ static int i915_drm_resume(struct drm_device *dev)
int ret;
disable_rpm_wakeref_asserts(dev_priv);
intel_sanitize_gt_powersave(dev_priv);
ret = i915_ggtt_enable_hw(dev_priv);
if (ret)
@ -1809,6 +1810,7 @@ int i915_reset(struct drm_i915_private *dev_priv)
* previous concerns that it doesn't respond well to some forms
* of re-init after reset.
*/
intel_sanitize_gt_powersave(dev_priv);
intel_autoenable_gt_powersave(dev_priv);
return 0;