[RFC 20/28] drm/i915: Compartmentalize i915_gem_suspend/restore_gtt_mappings

[Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>]

From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

Having made start to better code compartmentalization by introducing
struct intel_gt, continue the theme elsewhere in code by making functions
take parameters take what logically makes most sense for them instead of
the global struct drm_i915_private.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 0bc75c963955..516ffc4a521a 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -2323,23 +2323,28 @@ static bool needs_idle_maps(struct drm_i915_private *dev_priv)
 	return IS_GEN(dev_priv, 5) && IS_MOBILE(dev_priv) && intel_vtd_active();
 }
 
-void i915_gem_suspend_gtt_mappings(struct drm_i915_private *dev_priv)
+static void ggtt_suspend_mappings(struct i915_ggtt *ggtt)
 {
-	struct i915_ggtt *ggtt = &dev_priv->ggtt;
+	struct drm_i915_private *i915 = ggtt->vm.i915;
 
 	/* Don't bother messing with faults pre GEN6 as we have little
 	 * documentation supporting that it's a good idea.
 	 */
-	if (INTEL_GEN(dev_priv) < 6)
+	if (INTEL_GEN(i915) < 6)
 		return;
 
-	intel_gt_check_and_clear_faults(&dev_priv->gt);
+	intel_gt_check_and_clear_faults(ggtt->vm.gt);
 
 	ggtt->vm.clear_range(&ggtt->vm, 0, ggtt->vm.total);
 
 	ggtt->invalidate(ggtt);
 }
 
+void i915_gem_suspend_gtt_mappings(struct drm_i915_private *dev_priv)
+{
+	ggtt_suspend_mappings(&dev_priv->ggtt);
+}
+
 int i915_gem_gtt_prepare_pages(struct drm_i915_gem_object *obj,
 			       struct sg_table *pages)
 {
@@ -3674,12 +3679,11 @@ void i915_ggtt_disable_guc(struct drm_i915_private *i915)
 	ggtt->invalidate(ggtt);
 }
 
-void i915_gem_restore_gtt_mappings(struct drm_i915_private *dev_priv)
+static void ggtt_restore_mappings(struct i915_ggtt *ggtt)
 {
-	struct i915_ggtt *ggtt = &dev_priv->ggtt;
 	struct i915_vma *vma, *vn;
 
-	intel_gt_check_and_clear_faults(&dev_priv->gt);
+	intel_gt_check_and_clear_faults(ggtt->vm.gt);
 
 	mutex_lock(&ggtt->vm.mutex);
 
@@ -3716,6 +3720,11 @@ void i915_gem_restore_gtt_mappings(struct drm_i915_private *dev_priv)
 	ggtt->invalidate(ggtt);
 
 	mutex_unlock(&ggtt->vm.mutex);
+}
+
+void i915_gem_restore_gtt_mappings(struct drm_i915_private *dev_priv)
+{
+	ggtt_restore_mappings(&dev_priv->ggtt);
 
 	if (INTEL_GEN(dev_priv) >= 8) {
 		struct intel_ppat *ppat = &dev_priv->ppat;
-- 
2.20.1

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