drm/i915/gt: Pull restoration of GGTT fences underneath the GT

Make the GT responsible for restoring its fence when it wakes up from
suspend.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200316113846.4974-2-chris@chris-wilson.co.uk

drivers/gpu/drm/i915/gt/intel_ggtt.c

@@ -1195,6 +1195,8 @@ void i915_ggtt_resume(struct i915_ggtt *ggtt)
 
 	if (INTEL_GEN(ggtt->vm.i915) >= 8)
 		setup_private_pat(ggtt->vm.gt->uncore);
+
+	intel_ggtt_restore_fences(ggtt);
 }
 
 static struct scatterlist *

drivers/gpu/drm/i915/gt/intel_gt_pm.c

@@ -324,6 +324,7 @@ int intel_gt_runtime_resume(struct intel_gt *gt)
 {
 	GT_TRACE(gt, "\n");
 	intel_gt_init_swizzling(gt);
+	intel_ggtt_restore_fences(gt->ggtt);
 
 	return intel_uc_runtime_resume(&gt->uc);
 }

drivers/gpu/drm/i915/i915_drv.c

@@ -1288,7 +1288,6 @@ static int i915_drm_resume(struct drm_device *dev)
 		drm_err(&dev_priv->drm, "failed to re-enable GGTT\n");
 
 	i915_ggtt_resume(&dev_priv->ggtt);
-	intel_ggtt_restore_fences(&dev_priv->ggtt);
 
 	intel_csr_ucode_resume(dev_priv);
 
@@ -1606,8 +1605,6 @@ static int intel_runtime_suspend(struct device *kdev)
 
 		intel_gt_runtime_resume(&dev_priv->gt);
 
-		intel_ggtt_restore_fences(&dev_priv->ggtt);
-
 		enable_rpm_wakeref_asserts(rpm);
 
 		return ret;
@@ -1687,7 +1684,6 @@ static int intel_runtime_resume(struct device *kdev)
 	 * we can do is to hope that things will still work (and disable RPM).
 	 */
 	intel_gt_runtime_resume(&dev_priv->gt);
-	intel_ggtt_restore_fences(&dev_priv->ggtt);
 
 	/*
 	 * On VLV/CHV display interrupts are part of the display

drivers/gpu/drm/i915/i915_gem.c

@@ -1156,7 +1156,6 @@ int i915_gem_init(struct drm_i915_private *dev_priv)
 		/* Minimal basic recovery for KMS */
 		ret = i915_ggtt_enable_hw(dev_priv);
 		i915_ggtt_resume(&dev_priv->ggtt);
-		intel_ggtt_restore_fences(&dev_priv->ggtt);
 		intel_init_clock_gating(dev_priv);
 	}
 

drivers/gpu/drm/i915/selftests/i915_gem.c

@@ -125,8 +125,6 @@ static void pm_resume(struct drm_i915_private *i915)
 	 */
 	with_intel_runtime_pm(&i915->runtime_pm, wakeref) {
 		i915_ggtt_resume(&i915->ggtt);
-		intel_ggtt_restore_fences(&i915->ggtt);
-
 		i915_gem_resume(i915);
 	}
 }