[PATCH 68/78] drm/i915: Amalgamate GGTT/ppGTT vma debug list walkers

Chris Wilson chris at chris-wilson.co.uk
Sat May 7 17:42:55 UTC 2016


As we can now have multiple VMA inside the global GTT (with partial
mappings, rotations, etc), it is no longer true that there may just be a
single GGTT entry and so we should walk the full vma_list to count up
the actual usage. In addition to unifying the two walkers, switch from
multiplying the object size for each vma to summing the bound vma sizes.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 46 +++++++++++++++----------------------
 1 file changed, 18 insertions(+), 28 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 8f8accb1c14a..ae9d028a4fca 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -348,6 +348,7 @@ static int per_file_stats(int id, void *ptr, void *data)
 	struct drm_i915_gem_object *obj = ptr;
 	struct file_stats *stats = data;
 	struct i915_vma *vma;
+	int bound = 0;
 
 	stats->count++;
 	stats->total += obj->base.size;
@@ -355,41 +356,30 @@ static int per_file_stats(int id, void *ptr, void *data)
 	if (obj->base.name || obj->base.dma_buf)
 		stats->shared += obj->base.size;
 
-	if (USES_FULL_PPGTT(obj->base.dev)) {
-		list_for_each_entry(vma, &obj->vma_list, obj_link) {
-			struct i915_hw_ppgtt *ppgtt;
+	list_for_each_entry(vma, &obj->vma_list, obj_link) {
+		if (!drm_mm_node_allocated(&vma->node))
+			continue;
 
-			if (!drm_mm_node_allocated(&vma->node))
-				continue;
+		bound++;
 
-			if (vma->is_ggtt) {
-				stats->global += obj->base.size;
-				continue;
-			}
-
-			ppgtt = container_of(vma->vm, struct i915_hw_ppgtt, base);
+		if (vma->is_ggtt) {
+			stats->global += vma->node.size;
+		} else {
+			struct i915_hw_ppgtt *ppgtt
+				= container_of(vma->vm,
+					       struct i915_hw_ppgtt,
+					       base);
 			if (ppgtt->file_priv != stats->file_priv)
 				continue;
-
-			if (obj->active) /* XXX per-vma statistic */
-				stats->active += obj->base.size;
-			else
-				stats->inactive += obj->base.size;
-
-			return 0;
-		}
-	} else {
-		if (i915_gem_obj_ggtt_bound(obj)) {
-			stats->global += obj->base.size;
-			if (obj->active)
-				stats->active += obj->base.size;
-			else
-				stats->inactive += obj->base.size;
-			return 0;
 		}
+
+		if (obj->active) /* XXX per-vma statistic */
+			stats->active += vma->node.size;
+		else
+			stats->inactive += vma->node.size;
 	}
 
-	if (!list_empty(&obj->global_list))
+	if (!bound)
 		stats->unbound += obj->base.size;
 
 	return 0;
-- 
2.8.1



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