I was curious as to what objects were currently allocated from stolen
memory, and so exported it from debugfs.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_debugfs.c | 63 +++++++++++++++++++++++++++++++++++++
1 file changed, 63 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 07f5896..4243b63 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -30,6 +30,7 @@
#include <linux/debugfs.h>
#include <linux/slab.h>
#include <linux/export.h>
+#include <linux/list_sort.h>
#include <drm/drmP.h>
#include "intel_drv.h"
#include "intel_ringbuffer.h"
@@ -187,6 +188,67 @@ static int i915_gem_object_list_info(struct seq_file *m, void *data)
return 0;
}
+static int obj_rank_by_stolen(void *priv,
+ struct list_head *A, struct list_head *B)
+{
+ struct drm_i915_gem_object *a =
+ container_of(A, struct drm_i915_gem_object, exec_list);
+ struct drm_i915_gem_object *b =
+ container_of(B, struct drm_i915_gem_object, exec_list);
+
+ return a->stolen->start - b->stolen->start;
+}
+
+static int i915_gem_stolen_list_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_i915_gem_object *obj;
+ size_t total_obj_size, total_gtt_size;
+ LIST_HEAD(stolen);
+ int count, ret;
+
+ ret = mutex_lock_interruptible(&dev->struct_mutex);
+ if (ret)
+ return ret;
+
+ total_obj_size = total_gtt_size = count = 0;
+ list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
+ if (obj->stolen == NULL)
+ continue;
+
+ list_add(&obj->exec_list, &stolen);
+
+ total_obj_size += obj->base.size;
+ total_gtt_size += i915_gem_obj_ggtt_size(obj);
+ count++;
+ }
+ list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_list) {
+ if (obj->stolen == NULL)
+ continue;
+
+ list_add(&obj->exec_list, &stolen);
+
+ total_obj_size += obj->base.size;
+ count++;
+ }
+ list_sort(NULL, &stolen, obj_rank_by_stolen);
+ seq_puts(m, "Stolen:\n");
+ while (!list_empty(&stolen)) {
+ obj = list_first_entry(&stolen, typeof(*obj), exec_list);
+ seq_puts(m, " ");
+ describe_obj(m, obj);
+ seq_putc(m, '\n');
+ list_del_init(&obj->exec_list);
+ }
+ mutex_unlock(&dev->struct_mutex);
+
+ seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
+ count, total_obj_size, total_gtt_size);
+ return 0;
+}
+
#define count_objects(list, member) do { \
list_for_each_entry(obj, list, member) { \
size += i915_gem_obj_ggtt_size(obj); \
@@ -2092,6 +2154,7 @@ static struct drm_info_list i915_debugfs_list[] = {
{"i915_gem_pinned", i915_gem_gtt_info, 0, (void *) PINNED_LIST},
{"i915_gem_active", i915_gem_object_list_info, 0, (void *) ACTIVE_LIST},
{"i915_gem_inactive", i915_gem_object_list_info, 0, (void *) INACTIVE_LIST},
+ {"i915_gem_stolen", i915_gem_stolen_list_info },
{"i915_gem_pageflip", i915_gem_pageflip_info, 0},
{"i915_gem_request", i915_gem_request_info, 0},
{"i915_gem_seqno", i915_gem_seqno_info, 0},
--
1.8.1.2
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