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.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Cc: Rob Clark <robdclark@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_drm_client.c | 66 ++++++++++++++++++++++++++
1 file changed, 66 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_drm_client.c b/drivers/gpu/drm/i915/i915_drm_client.c
index 2a44b3876cb5..2a40f763f8f6 100644
--- a/drivers/gpu/drm/i915/i915_drm_client.c
+++ b/drivers/gpu/drm/i915/i915_drm_client.c
@@ -41,6 +41,70 @@ void __i915_drm_client_free(struct kref *kref)
}
#ifdef CONFIG_PROC_FS
+static void
+add_obj_meminfo(struct drm_i915_gem_object *obj,
+ struct intel_memory_region *mr,
+ struct drm_memory_stats stats[INTEL_REGION_UNKNOWN])
+{
+ u64 sz = obj->base.size;
+ enum intel_region_id id;
+ unsigned int i;
+
+ id = mr->id;
+ 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_rw(true)))
+ stats[id].active += sz;
+ else if (i915_gem_object_is_shrinkable(obj) &&
+ obj->mm.madv == I915_MADV_DONTNEED)
+ stats[id].purgeable += sz;
+ }
+
+ /* Attribute size and shared to all possible object memory regions. */
+ for (i = 0; i < obj->mm.n_placements; i++) {
+ if (obj->mm.placements[i] == mr)
+ continue;
+
+ id = obj->mm.placements[i]->id;
+ if (obj->base.handle_count > 1)
+ stats[id].shared += sz;
+ else
+ stats[id].private += sz;
+ }
+}
+
+static void show_meminfo(struct drm_printer *p, struct drm_file *file)
+{
+ struct drm_i915_file_private *file_priv = file->driver_priv;
+ struct drm_memory_stats stats[INTEL_REGION_UNKNOWN] = {};
+ struct drm_i915_private *i915 = file_priv->i915;
+ struct intel_memory_region *mr;
+ unsigned int id;
+
+ for_each_memory_region(mr, i915, id) {
+ struct drm_i915_gem_object *obj;
+
+ mutex_lock(&mr->objects.lock);
+ list_for_each_entry(obj, &mr->objects.list, mm.region_link)
+ add_obj_meminfo(obj, mr, stats);
+ mutex_unlock(&mr->objects.lock);
+ }
+
+ 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",
@@ -102,6 +166,8 @@ 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
