In i915_gem_resume(), before calling i915_gem_restore_gtt_mappings(), we want to take the runtime PM wakelocks for the entire duration instead of many short lived wakelocks around each access to the GGTT. We will take it in i915_gem_resume() as any other GEM operation is likely to require the gT powerwell as well. v2: Better explanation of the patch (Chris) Signed-off-by: David Weinehall <david.weinehall@xxxxxxxxxxxxxxx> Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> CC: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/i915_gem.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index d5b7723bb028..da6e949906ca 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -4240,6 +4240,7 @@ void i915_gem_resume(struct drm_device *dev) WARN_ON(dev_priv->gt.awake); + intel_runtime_pm_get(dev_priv); mutex_lock(&dev->struct_mutex); i915_gem_restore_gtt_mappings(dev_priv); @@ -4250,6 +4251,7 @@ void i915_gem_resume(struct drm_device *dev) dev_priv->gt.resume(dev_priv); mutex_unlock(&dev->struct_mutex); + intel_runtime_pm_put(dev_priv); } void i915_gem_init_swizzling(struct drm_i915_private *dev_priv) -- 2.10.2 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
