drm/panfrost: Print RSS for tiler heap BO's in debugfs GEMS file

Otherwise it would display the virtual allocation size, which is often
much bigger than the RSS.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Fixes: e48ade5 ("drm/panfrost: show device-wide list of DRM GEM objects over DebugFS")
Tested-by: Christopher Healy <healych@amazon.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250808010235.2831853-1-adrian.larumbe@collabora.com

Author: larunbe

drivers/gpu/drm/panfrost/panfrost_gem.c

@@ -432,7 +432,7 @@ static void panfrost_gem_debugfs_bo_print(struct panfrost_gem_object *bo,
 	if (!refcount)
 		return;
 
-	resident_size = bo->base.pages ? bo->base.base.size : 0;
+	resident_size = panfrost_gem_rss(&bo->base.base);
 
 	snprintf(creator_info, sizeof(creator_info),
 		 "%s/%d", bo->debugfs.creator.process_name, bo->debugfs.creator.tgid);