| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright 2015 Google Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #ifndef _STAGE_CACHE_H_ |
| #define _STAGE_CACHE_H_ |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| #include <program_loading.h> |
| |
| /* Types of stages that may be stored in stage cache */ |
| enum { |
| STAGE_RAMSTAGE, |
| STAGE_REFCODE, |
| STAGE_POSTCAR, |
| }; |
| |
| /* Types of raw data that may be stored in stage cache */ |
| enum { |
| STAGE_S3_DATA, |
| }; |
| |
| #if CONFIG(TSEG_STAGE_CACHE) || CONFIG(CBMEM_STAGE_CACHE) |
| /* Cache the loaded stage provided according to the parameters. */ |
| void stage_cache_add(int stage_id, const struct prog *stage); |
| /* Load the cached stage at given location returning the stage entry point. */ |
| void stage_cache_load_stage(int stage_id, struct prog *stage); |
| /* Cache non-specific data or code. */ |
| void stage_cache_add_raw(int stage_id, const void *base, const size_t size); |
| /* Get a pointer to cached raw data and its size. */ |
| void stage_cache_get_raw(int stage_id, void **base, size_t *size); |
| |
| #else /* CONFIG_NO_STAGE_CACHE */ |
| |
| static inline void stage_cache_add(int stage_id, const struct prog *stage) {} |
| static inline void stage_cache_load_stage(int stage_id, struct prog *stage) {} |
| static inline void stage_cache_add_raw(int stage_id, const void *base, const size_t size) {} |
| static inline void stage_cache_get_raw(int stage_id, void **base, size_t *size) {} |
| |
| #endif |
| |
| /* Fill in parameters for the external stage cache, if utilized. */ |
| void stage_cache_external_region(void **base, size_t *size); |
| |
| /* Metadata associated with each stage. */ |
| struct stage_cache { |
| uint64_t load_addr; |
| uint64_t entry_addr; |
| uint64_t arg; |
| }; |
| |
| #endif /* _STAGE_CACHE_H_ */ |