133dd7075SDan Williams // SPDX-License-Identifier: GPL-2.0-only 233dd7075SDan Williams /* identifiers for device / performance-differentiated memory regions */ 333dd7075SDan Williams #include <linux/idr.h> 433dd7075SDan Williams #include <linux/types.h> 5*ffa550cdSJason Yan #include <linux/memregion.h> 633dd7075SDan Williams 733dd7075SDan Williams static DEFINE_IDA(memregion_ids); 833dd7075SDan Williams memregion_alloc(gfp_t gfp)933dd7075SDan Williamsint memregion_alloc(gfp_t gfp) 1033dd7075SDan Williams { 1133dd7075SDan Williams return ida_alloc(&memregion_ids, gfp); 1233dd7075SDan Williams } 1333dd7075SDan Williams EXPORT_SYMBOL(memregion_alloc); 1433dd7075SDan Williams memregion_free(int id)1533dd7075SDan Williamsvoid memregion_free(int id) 1633dd7075SDan Williams { 1733dd7075SDan Williams ida_free(&memregion_ids, id); 1833dd7075SDan Williams } 1933dd7075SDan Williams EXPORT_SYMBOL(memregion_free); 20