| Aaron Durbin | bd74a4b | 2015-03-06 23:17:33 -0600 | [diff] [blame^] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright 2015 Google Inc. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc. |
| 18 | */ |
| 19 | |
| 20 | #ifndef _STAGE_CACHE_H_ |
| 21 | #define _STAGE_CACHE_H_ |
| 22 | |
| 23 | #include <stddef.h> |
| 24 | #include <stdint.h> |
| 25 | #include <program_loading.h> |
| 26 | |
| 27 | enum { |
| 28 | STAGE_RAMSTAGE, |
| 29 | STAGE_REFCODE, |
| 30 | }; |
| 31 | |
| 32 | /* Create an empty stage cache. */ |
| 33 | void stage_cache_create_empty(void); |
| 34 | /* Recover existing stage cache. */ |
| 35 | void stage_cache_recover(void); |
| 36 | /* Cache the loaded stage provided according to the parameters. */ |
| 37 | void stage_cache_add(int stage_id, struct prog *stage); |
| 38 | /* Load the cached stage at given location returning the stage entry point. */ |
| 39 | void stage_cache_load_stage(int stage_id, struct prog *stage); |
| 40 | /* Fill in parameters for the external stage cache, if utilized. */ |
| 41 | void stage_cache_external_region(void **base, size_t *size); |
| 42 | |
| 43 | /* Metadata associated with each stage. */ |
| 44 | struct stage_cache { |
| 45 | uint64_t load_addr; |
| 46 | uint64_t entry_addr; |
| 47 | }; |
| 48 | |
| 49 | #endif /* _STAGE_CACHE_H_ */ |