[PATCH 2/2] drm/i915/vgt: Move VGT GGTT ballooning nodes to i915_ggtt

[Michal Wajdeczko]

We should avoid using static data in the driver.
Since VGT ballooning nodes are GGTT specific, move them
to i915_ggtt struct close to some other similar nodes.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
Cc: Xiong Zhang <xiong.y.zhang at intel.com>
Cc: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/i915/gt/intel_gtt.h |  1 +
 drivers/gpu/drm/i915/i915_vgpu.c    | 27 ++++++++-------------------
 2 files changed, 9 insertions(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.h b/drivers/gpu/drm/i915/gt/intel_gtt.h
index 88e4b500df51..185690e31850 100644
--- a/drivers/gpu/drm/i915/gt/intel_gtt.h
+++ b/drivers/gpu/drm/i915/gt/intel_gtt.h
@@ -347,6 +347,7 @@ struct i915_ggtt {
 
 	struct drm_mm_node error_capture;
 	struct drm_mm_node uc_fw;
+	struct drm_mm_node balloon[4];
 };
 
 struct i915_ppgtt {
diff --git a/drivers/gpu/drm/i915/i915_vgpu.c b/drivers/gpu/drm/i915/i915_vgpu.c
index 4e1889a7aa5c..428a4a7560ed 100644
--- a/drivers/gpu/drm/i915/i915_vgpu.c
+++ b/drivers/gpu/drm/i915/i915_vgpu.c
@@ -106,17 +106,6 @@ bool intel_vgpu_has_full_ppgtt(struct drm_i915_private *dev_priv)
 	return dev_priv->vgpu.caps & VGT_CAPS_FULL_PPGTT;
 }
 
-struct _balloon_info_ {
-	/*
-	 * There are up to 2 regions per mappable/unmappable graphic
-	 * memory that might be ballooned. Here, index 0/1 is for mappable
-	 * graphic memory, 2/3 for unmappable graphic memory.
-	 */
-	struct drm_mm_node space[4];
-};
-
-static struct _balloon_info_ bl_info;
-
 /**
  * intel_vgt_deballoon - deballoon reserved graphics address trunks
  * @ggtt: the global GGTT from which we reserved earlier
@@ -134,7 +123,7 @@ void intel_vgt_deballoon(struct i915_ggtt *ggtt)
 	DRM_DEBUG("VGT deballoon.\n");
 
 	for (i = 0; i < 4; i++)
-		i915_ggtt_deballoon(ggtt, &bl_info.space[i]);
+		i915_ggtt_deballoon(ggtt, &ggtt->balloon[i]);
 }
 
 /**
@@ -221,7 +210,7 @@ int intel_vgt_balloon(struct i915_ggtt *ggtt)
 	/* Unmappable graphic memory ballooning */
 	if (unmappable_base > ggtt->mappable_end) {
 		ret = i915_ggtt_balloon(ggtt, ggtt->mappable_end,
-					unmappable_base, &bl_info.space[2]);
+					unmappable_base, &ggtt->balloon[2]);
 
 		if (ret)
 			goto err;
@@ -229,7 +218,7 @@ int intel_vgt_balloon(struct i915_ggtt *ggtt)
 
 	if (unmappable_end < ggtt_end) {
 		ret = i915_ggtt_balloon(ggtt, unmappable_end, ggtt_end,
-					&bl_info.space[3]);
+					&ggtt->balloon[3]);
 		if (ret)
 			goto err_upon_mappable;
 	}
@@ -237,7 +226,7 @@ int intel_vgt_balloon(struct i915_ggtt *ggtt)
 	/* Mappable graphic memory ballooning */
 	if (mappable_base) {
 		ret = i915_ggtt_balloon(ggtt, 0, mappable_base,
-					&bl_info.space[0]);
+					&ggtt->balloon[0]);
 
 		if (ret)
 			goto err_upon_unmappable;
@@ -245,7 +234,7 @@ int intel_vgt_balloon(struct i915_ggtt *ggtt)
 
 	if (mappable_end < ggtt->mappable_end) {
 		ret = i915_ggtt_balloon(ggtt, mappable_end, ggtt->mappable_end,
-					&bl_info.space[1]);
+					&ggtt->balloon[1]);
 
 		if (ret)
 			goto err_below_mappable;
@@ -255,11 +244,11 @@ int intel_vgt_balloon(struct i915_ggtt *ggtt)
 	return 0;
 
 err_below_mappable:
-	i915_ggtt_deballoon(ggtt, &bl_info.space[0]);
+	i915_ggtt_deballoon(ggtt, &ggtt->balloon[0]);
 err_upon_unmappable:
-	i915_ggtt_deballoon(ggtt, &bl_info.space[3]);
+	i915_ggtt_deballoon(ggtt, &ggtt->balloon[3]);
 err_upon_mappable:
-	i915_ggtt_deballoon(ggtt, &bl_info.space[2]);
+	i915_ggtt_deballoon(ggtt, &ggtt->balloon[2]);
 err:
 	DRM_ERROR("VGT balloon fail\n");
 	return ret;
-- 
2.19.2