Dan Williams | 33dd707 | 2019-11-06 17:43:31 -0800 | [diff] [blame] | 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> |
Jason Yan | ffa550c | 2020-09-25 21:19:21 -0700 | [diff] [blame] | 5 | #include <linux/memregion.h> |
Dan Williams | 33dd707 | 2019-11-06 17:43:31 -0800 | [diff] [blame] | 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); |