xref: /linux/lib/memregion.c (revision ffa550cd)
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 Williams int 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 Williams void memregion_free(int id)
1633dd7075SDan Williams {
1733dd7075SDan Williams 	ida_free(&memregion_ids, id);
1833dd7075SDan Williams }
1933dd7075SDan Williams EXPORT_SYMBOL(memregion_free);
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