[Intel-gfx] [PATCH] drm/i915: Always wake the device to flush the GTT

[Chris Wilson]

Experimental patch for bxt/gem_pwrite.
---
 drivers/gpu/drm/i915/i915_gem.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 37fbc64d9ffe..4f6af401320c 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -695,12 +695,11 @@ flush_write_domain(struct drm_i915_gem_object *obj, unsigned int flush_domains)
 	switch (obj->base.write_domain) {
 	case I915_GEM_DOMAIN_GTT:
 		if (INTEL_GEN(dev_priv) >= 6 && !HAS_LLC(dev_priv)) {
-			if (intel_runtime_pm_get_if_in_use(dev_priv)) {
-				spin_lock_irq(&dev_priv->uncore.lock);
-				POSTING_READ_FW(RING_ACTHD(dev_priv->engine[RCS]->mmio_base));
-				spin_unlock_irq(&dev_priv->uncore.lock);
-				intel_runtime_pm_put(dev_priv);
-			}
+			intel_runtime_pm_get(dev_priv);
+			spin_lock_irq(&dev_priv->uncore.lock);
+			POSTING_READ_FW(RING_ACTHD(dev_priv->engine[RCS]->mmio_base));
+			spin_unlock_irq(&dev_priv->uncore.lock);
+			intel_runtime_pm_put(dev_priv);
 		}
 
 		intel_fb_obj_flush(obj,
-- 
2.14.1