1 // SPDX-License-Identifier: GPL-2.0-only
2 /* identifiers for device / performance-differentiated memory regions */
3 #include <linux/idr.h>
4 #include <linux/types.h>
5 #include <linux/memregion.h>
6
7 static DEFINE_IDA(memregion_ids);
8
9 int memregion_alloc(gfp_t gfp)
10 {
11 return ida_alloc(&memregion_ids, gfp);
12 }
13 EXPORT_SYMBOL(memregion_alloc);
14
15 void memregion_free(int id)
16 {
17 ida_free(&memregion_ids, id);
18 }
19 EXPORT_SYMBOL(memregion_free);
20
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