From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Use the newly added drm_print_memory_stats helper to show memory
utilisation of our objects in drm/driver specific fdinfo output.
To collect the stats we walk the per memory regions object lists
and accumulate object size into the respective drm_memory_stats
categories.
Objects with multiple possible placements are reported in multiple
regions for total and shared sizes, while other categories are
counted only for the currently active region.
v2:
* Only account against the active region.
* Use DMA_RESV_USAGE_BOOKKEEP when testing for active. (Tejas)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Cc: Aravind Iddamsetty <aravind.iddamsetty@xxxxxxxxx>
Cc: Rob Clark <robdclark@xxxxxxxxx>
Cc: Andi Shyti <andi.shyti@xxxxxxxxxxxxxxx>
Cc: Tejas Upadhyay <tejas.upadhyay@xxxxxxxxx>
Reviewed-by: Andi Shyti <andi.shyti@xxxxxxxxxxxxxxx> # v1
---
drivers/gpu/drm/i915/i915_drm_client.c | 64 ++++++++++++++++++++++++++
1 file changed, 64 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_drm_client.c b/drivers/gpu/drm/i915/i915_drm_client.c
index a61356012df8..94abc2fb2ea6 100644
--- a/drivers/gpu/drm/i915/i915_drm_client.c
+++ b/drivers/gpu/drm/i915/i915_drm_client.c
@@ -45,6 +45,68 @@ void __i915_drm_client_free(struct kref *kref)
}
#ifdef CONFIG_PROC_FS
+static void
+obj_meminfo(struct drm_i915_gem_object *obj,
+ struct drm_memory_stats stats[INTEL_REGION_UNKNOWN])
+{
+ const enum intel_region_id id = obj->mm.region ?
+ obj->mm.region->id : INTEL_REGION_SMEM;
+ const u64 sz = obj->base.size;
+
+ if (obj->base.handle_count > 1)
+ stats[id].shared += sz;
+ else
+ stats[id].private += sz;
+
+ if (i915_gem_object_has_pages(obj)) {
+ stats[id].resident += sz;
+
+ if (!dma_resv_test_signaled(obj->base.resv,
+ DMA_RESV_USAGE_BOOKKEEP))
+ stats[id].active += sz;
+ else if (i915_gem_object_is_shrinkable(obj) &&
+ obj->mm.madv == I915_MADV_DONTNEED)
+ stats[id].purgeable += sz;
+ }
+}
+
+static void show_meminfo(struct drm_printer *p, struct drm_file *file)
+{
+ struct drm_memory_stats stats[INTEL_REGION_UNKNOWN] = {};
+ struct drm_i915_file_private *fpriv = file->driver_priv;
+ struct i915_drm_client *client = fpriv->client;
+ struct drm_i915_private *i915 = fpriv->i915;
+ struct drm_i915_gem_object *obj;
+ struct intel_memory_region *mr;
+ struct list_head *pos;
+ unsigned int id;
+
+ /* Public objects. */
+ spin_lock(&file->table_lock);
+ idr_for_each_entry(&file->object_idr, obj, id)
+ obj_meminfo(obj, stats);
+ spin_unlock(&file->table_lock);
+
+ /* Internal objects. */
+ rcu_read_lock();
+ list_for_each_rcu(pos, &client->objects_list) {
+ obj = i915_gem_object_get_rcu(list_entry(pos, typeof(*obj),
+ client_link));
+ if (!obj)
+ continue;
+ obj_meminfo(obj, stats);
+ i915_gem_object_put(obj);
+ }
+ rcu_read_unlock();
+
+ for_each_memory_region(mr, i915, id)
+ drm_print_memory_stats(p,
+ &stats[id],
+ DRM_GEM_OBJECT_RESIDENT |
+ DRM_GEM_OBJECT_PURGEABLE,
+ mr->name);
+}
+
static const char * const uabi_class_names[] = {
[I915_ENGINE_CLASS_RENDER] = "render",
[I915_ENGINE_CLASS_COPY] = "copy",
@@ -106,6 +168,8 @@ void i915_drm_client_fdinfo(struct drm_printer *p, struct drm_file *file)
* ******************************************************************
*/
+ show_meminfo(p, file);
+
if (GRAPHICS_VER(i915) < 8)
return;
--
2.39.2
