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_raw_any(u64 start, u64 end, enum e820_type type);
14extern bool e820__mapped_any(u64 start, u64 end, enum e820_type type);
15extern bool e820__mapped_all(u64 start, u64 end, enum e820_type type);
16
17extern void e820__range_add   (u64 start, u64 size, enum e820_type type);
18extern u64  e820__range_update(u64 start, u64 size, enum e820_type old_type, enum e820_type new_type);
19extern u64  e820__range_remove(u64 start, u64 size, enum e820_type old_type, bool check_type);
20extern u64  e820__range_update_table(struct e820_table *t, u64 start, u64 size, enum e820_type old_type, enum e820_type new_type);
21
22extern void e820__print_table(char *who);
23extern int  e820__update_table(struct e820_table *table);
24extern void e820__update_table_print(void);
25
26extern unsigned long e820__end_of_ram_pfn(void);
27extern unsigned long e820__end_of_low_ram_pfn(void);
28
29extern u64  e820__memblock_alloc_reserved(u64 size, u64 align);
30extern void e820__memblock_setup(void);
31
32extern void e820__reserve_setup_data(void);
33extern void e820__finish_early_params(void);
34extern void e820__reserve_resources(void);
35extern void e820__reserve_resources_late(void);
36
37extern void e820__memory_setup(void);
38extern void e820__memory_setup_extended(u64 phys_addr, u32 data_len);
39extern char *e820__memory_setup_default(void);
40extern void e820__setup_pci_gap(void);
41
42extern void e820__reallocate_tables(void);
43extern void e820__register_nosave_regions(unsigned long limit_pfn);
44
45extern int  e820__get_entry_type(u64 start, u64 end);
46
47/*
48 * Returns true iff the specified range [start,end) is completely contained inside
49 * the ISA region.
50 */
51static inline bool is_ISA_range(u64 start, u64 end)
52{
53	return start >= ISA_START_ADDRESS && end <= ISA_END_ADDRESS;
54}
55
56#endif /* _ASM_E820_API_H */