51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
/*
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* coreboot_table.h
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*
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* Internal header for coreboot table access.
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*
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* Copyright 2017 Google Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License v2.0 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __COREBOOT_TABLE_H
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#define __COREBOOT_TABLE_H
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#include <linux/io.h>
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/* List of coreboot entry structures that is used */
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struct lb_cbmem_ref {
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uint32_t tag;
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uint32_t size;
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uint64_t cbmem_addr;
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};
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/* Coreboot table header structure */
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struct coreboot_table_header {
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char signature[4];
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u32 header_bytes;
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u32 header_checksum;
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u32 table_bytes;
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u32 table_checksum;
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u32 table_entries;
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};
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/* Retrieve coreboot table entry with tag *tag* and copy it to data */
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int coreboot_table_find(int tag, void *data, size_t data_size);
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/* Initialize coreboot table module given a pointer to iomem */
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int coreboot_table_init(void __iomem *ptr);
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/* Cleanup coreboot table module */
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int coreboot_table_exit(void);
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#endif /* __COREBOOT_TABLE_H */
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