1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_E820_API_H
3#define _ASM_E820_API_H
4
5#include <asm/e820/types.h>
6
7extern struct e820_table *e820_table;
8extern struct e820_table *e820_table_kexec;
9extern struct e820_table *e820_table_firmware;
10
11extern unsigned long pci_mem_start;
12
13extern bool e820__mapped_any(u64 start, u64 end, enum e820_type type);
14extern bool e820__mapped_all(u64 start, u64 end, enum e820_type type);
15
16extern void e820__range_add (u64 start, u64 size, enum e820_type type);
17extern u64 e820__range_update(u64 start, u64 size, enum e820_type old_type, enum e820_type new_type);
18extern u64 e820__range_remove(u64 start, u64 size, enum e820_type old_type, bool check_type);
19
20extern void e820__print_table(char *who);
21extern int e820__update_table(struct e820_table *table);
22extern void e820__update_table_print(void);
23
24extern unsigned long e820__end_of_ram_pfn(void);
25extern unsigned long e820__end_of_low_ram_pfn(void);
26
27extern u64 e820__memblock_alloc_reserved(u64 size, u64 align);
28extern void e820__memblock_setup(void);
29
30extern void e820__reserve_setup_data(void);
31extern void e820__finish_early_params(void);
32extern void e820__reserve_resources(void);
33extern void e820__reserve_resources_late(void);
34
35extern void e820__memory_setup(void);
36extern void e820__memory_setup_extended(u64 phys_addr, u32 data_len);
37extern char *e820__memory_setup_default(void);
38extern void e820__setup_pci_gap(void);
39
40extern void e820__reallocate_tables(void);
41extern void e820__register_nosave_regions(unsigned long limit_pfn);
42
43extern int e820__get_entry_type(u64 start, u64 end);
44
45/*
46 * Returns true iff the specified range [start,end) is completely contained inside
47 * the ISA region.
48 */
49static inline bool is_ISA_range(u64 start, u64 end)
50{
51 return start >= ISA_START_ADDRESS && end <= ISA_END_ADDRESS;
52}
53
54#endif /* _ASM_E820_API_H */
55