| Aaron Durbin | 4904802 | 2014-02-18 21:55:02 -0600 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2014 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. |
| Aaron Durbin | 4904802 | 2014-02-18 21:55:02 -0600 | [diff] [blame] | 14 | */ |
| 15 | |
| 16 | #ifndef BOOTMEM_H |
| 17 | #define BOOTMEM_H |
| 18 | |
| 19 | #include <memrange.h> |
| 20 | #include <stdint.h> |
| 21 | #include <boot/coreboot_tables.h> |
| 22 | |
| 23 | /* |
| 24 | * Initialize the memory address space prior to payload loading. The bootmem |
| 25 | * serves as the source for the lb_mem table. |
| 26 | */ |
| 27 | void bootmem_init(void); |
| 28 | |
| 29 | /* Add a range of a given type to the bootmem address space. */ |
| 30 | void bootmem_add_range(uint64_t start, uint64_t size, uint32_t type); |
| 31 | |
| 32 | /* Write memory coreboot table. */ |
| 33 | void bootmem_write_memory_table(struct lb_memory *mem); |
| 34 | |
| 35 | /* Print current range map of boot memory. */ |
| 36 | void bootmem_dump_ranges(void); |
| 37 | |
| 38 | /* Return 1 if region targets usable RAM, 0 otherwise. */ |
| 39 | int bootmem_region_targets_usable_ram(uint64_t start, uint64_t size); |
| 40 | |
| 41 | /* Allocate a temporary buffer from the unused RAM areas. */ |
| 42 | void *bootmem_allocate_buffer(size_t size); |
| 43 | |
| 44 | #endif /* BOOTMEM_H */ |