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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2014 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 BOOTMEM_H
#define BOOTMEM_H
#include <memrange.h>
#include <stdint.h>
#include <boot/coreboot_tables.h>
/*
* Initialize the memory address space prior to payload loading. The bootmem
* serves as the source for the lb_mem table.
*/
void bootmem_init(void);
/* Architecture hook to add bootmem areas the architecture controls. */
void bootmem_arch_add_ranges(void);
/* Add a range of a given type to the bootmem address space. */
void bootmem_add_range(uint64_t start, uint64_t size, uint32_t type);
/* Write memory coreboot table. */
void bootmem_write_memory_table(struct lb_memory *mem);
/* Print current range map of boot memory. */
void bootmem_dump_ranges(void);
/* Return 1 if region targets usable RAM, 0 otherwise. */
int bootmem_region_targets_usable_ram(uint64_t start, uint64_t size);
/* Allocate a temporary buffer from the unused RAM areas. */
void *bootmem_allocate_buffer(size_t size);
#endif /* BOOTMEM_H */
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