drm/qxl: Use TTM builtin resource manager debugfs code

Switch to using the TTM resource manager debugfs helpers. The
functionality is largely the same.
The TTM resource managers need to stay valid for as long as the
drm debugfs_root is valid.
Signed-off-by: Zack Rusin <zackr@vmware.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: virtualization@lists.linux-foundation.org
Cc: spice-devel@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20220412033526.369115-5-zack@kde.orgReviewed-by: Christian König <christian.koenig@amd.com>

drivers/gpu/drm/qxl/qxl_ttm.c

@@ -222,41 +222,14 @@ void qxl_ttm_fini(struct qxl_device *qdev)
 	DRM_INFO("qxl: ttm finalized\n");
 }
 
-#define QXL_DEBUGFS_MEM_TYPES 2
-
-#if defined(CONFIG_DEBUG_FS)
-static int qxl_mm_dump_table(struct seq_file *m, void *data)
-{
-	struct drm_info_node *node = (struct drm_info_node *)m->private;
-	struct ttm_resource_manager *man = (struct ttm_resource_manager *)node->info_ent->data;
-	struct drm_printer p = drm_seq_file_printer(m);
-
-	ttm_resource_manager_debug(man, &p);
-	return 0;
-}
-#endif
-
 void qxl_ttm_debugfs_init(struct qxl_device *qdev)
 {
 #if defined(CONFIG_DEBUG_FS)
-	static struct drm_info_list qxl_mem_types_list[QXL_DEBUGFS_MEM_TYPES];
-	static char qxl_mem_types_names[QXL_DEBUGFS_MEM_TYPES][32];
-	unsigned int i;
-
-	for (i = 0; i < QXL_DEBUGFS_MEM_TYPES; i++) {
-		if (i == 0)
-			sprintf(qxl_mem_types_names[i], "qxl_mem_mm");
-		else
-			sprintf(qxl_mem_types_names[i], "qxl_surf_mm");
-		qxl_mem_types_list[i].name = qxl_mem_types_names[i];
-		qxl_mem_types_list[i].show = &qxl_mm_dump_table;
-		qxl_mem_types_list[i].driver_features = 0;
-		if (i == 0)
-			qxl_mem_types_list[i].data = ttm_manager_type(&qdev->mman.bdev, TTM_PL_VRAM);
-		else
-			qxl_mem_types_list[i].data = ttm_manager_type(&qdev->mman.bdev, TTM_PL_PRIV);
-
-	}
-	qxl_debugfs_add_files(qdev, qxl_mem_types_list, i);
+	ttm_resource_manager_create_debugfs(ttm_manager_type(&qdev->mman.bdev,
+							     TTM_PL_VRAM),
+					    qdev->ddev.primary->debugfs_root, "qxl_mem_mm");
+	ttm_resource_manager_create_debugfs(ttm_manager_type(&qdev->mman.bdev,
+							     TTM_PL_PRIV),
+					    qdev->ddev.primary->debugfs_root, "qxl_surf_mm");
 #endif
 }