Angel Pons | 32859fc | 2020-04-02 23:48:27 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | /* This file is part of the coreboot project. */ |
Aaron Durbin | 9a7d7bc | 2013-09-07 00:41:48 -0500 | [diff] [blame] | 3 | |
Duncan Laurie | d8c4f2b | 2014-04-22 10:46:06 -0700 | [diff] [blame] | 4 | #ifndef _COMMON_MRC_CACHE_H_ |
| 5 | #define _COMMON_MRC_CACHE_H_ |
Aaron Durbin | 9a7d7bc | 2013-09-07 00:41:48 -0500 | [diff] [blame] | 6 | |
| 7 | #include <stddef.h> |
| 8 | #include <stdint.h> |
Marshall Dawson | 6344289 | 2017-12-17 14:16:42 -0700 | [diff] [blame] | 9 | #include <commonlib/region.h> |
Aaron Durbin | 9a7d7bc | 2013-09-07 00:41:48 -0500 | [diff] [blame] | 10 | |
Aaron Durbin | 31be2c9 | 2016-12-03 22:08:20 -0600 | [diff] [blame] | 11 | enum { |
| 12 | MRC_TRAINING_DATA, |
| 13 | MRC_VARIABLE_DATA, |
| 14 | }; |
Furquan Shaikh | cab1c01 | 2016-11-05 23:57:02 -0700 | [diff] [blame] | 15 | |
Aaron Durbin | 31be2c9 | 2016-12-03 22:08:20 -0600 | [diff] [blame] | 16 | /* |
| 17 | * It's up to the caller to decide when to retrieve and stash data. There is |
| 18 | * differentiation on recovery mode CONFIG_HAS_RECOVERY_MRC_CACHE, but that's |
| 19 | * only for locating where to retrieve and save the data. If a platform doesn't |
| 20 | * want to update the data then it shouldn't stash the data for saving. |
| 21 | * Similarly, if the platform doesn't need the data for booting because of a |
| 22 | * policy don't request the data. |
| 23 | */ |
Aaron Durbin | 9a7d7bc | 2013-09-07 00:41:48 -0500 | [diff] [blame] | 24 | |
Aaron Durbin | 31be2c9 | 2016-12-03 22:08:20 -0600 | [diff] [blame] | 25 | /* Get and stash data for saving provided the type passed in. The functions |
| 26 | * return < 0 on error, 0 on success. */ |
| 27 | int mrc_cache_get_current(int type, uint32_t version, |
| 28 | struct region_device *rdev); |
| 29 | int mrc_cache_stash_data(int type, uint32_t version, const void *data, |
| 30 | size_t size); |
Duncan Laurie | d8c4f2b | 2014-04-22 10:46:06 -0700 | [diff] [blame] | 31 | |
| 32 | #endif /* _COMMON_MRC_CACHE_H_ */ |