1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef _ASM_E820_API_H
3*4882a593Smuzhiyun #define _ASM_E820_API_H
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun #include <asm/e820/types.h>
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun extern struct e820_table *e820_table;
8*4882a593Smuzhiyun extern struct e820_table *e820_table_kexec;
9*4882a593Smuzhiyun extern struct e820_table *e820_table_firmware;
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun extern unsigned long pci_mem_start;
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun extern bool e820__mapped_raw_any(u64 start, u64 end, enum e820_type type);
14*4882a593Smuzhiyun extern bool e820__mapped_any(u64 start, u64 end, enum e820_type type);
15*4882a593Smuzhiyun extern bool e820__mapped_all(u64 start, u64 end, enum e820_type type);
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun extern void e820__range_add (u64 start, u64 size, enum e820_type type);
18*4882a593Smuzhiyun extern u64 e820__range_update(u64 start, u64 size, enum e820_type old_type, enum e820_type new_type);
19*4882a593Smuzhiyun extern u64 e820__range_remove(u64 start, u64 size, enum e820_type old_type, bool check_type);
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun extern void e820__print_table(char *who);
22*4882a593Smuzhiyun extern int e820__update_table(struct e820_table *table);
23*4882a593Smuzhiyun extern void e820__update_table_print(void);
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun extern unsigned long e820__end_of_ram_pfn(void);
26*4882a593Smuzhiyun extern unsigned long e820__end_of_low_ram_pfn(void);
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun extern u64 e820__memblock_alloc_reserved(u64 size, u64 align);
29*4882a593Smuzhiyun extern void e820__memblock_setup(void);
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun extern void e820__reserve_setup_data(void);
32*4882a593Smuzhiyun extern void e820__finish_early_params(void);
33*4882a593Smuzhiyun extern void e820__reserve_resources(void);
34*4882a593Smuzhiyun extern void e820__reserve_resources_late(void);
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun extern void e820__memory_setup(void);
37*4882a593Smuzhiyun extern void e820__memory_setup_extended(u64 phys_addr, u32 data_len);
38*4882a593Smuzhiyun extern char *e820__memory_setup_default(void);
39*4882a593Smuzhiyun extern void e820__setup_pci_gap(void);
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun extern void e820__reallocate_tables(void);
42*4882a593Smuzhiyun extern void e820__register_nosave_regions(unsigned long limit_pfn);
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun extern int e820__get_entry_type(u64 start, u64 end);
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun /*
47*4882a593Smuzhiyun * Returns true iff the specified range [start,end) is completely contained inside
48*4882a593Smuzhiyun * the ISA region.
49*4882a593Smuzhiyun */
is_ISA_range(u64 start,u64 end)50*4882a593Smuzhiyun static inline bool is_ISA_range(u64 start, u64 end)
51*4882a593Smuzhiyun {
52*4882a593Smuzhiyun return start >= ISA_START_ADDRESS && end <= ISA_END_ADDRESS;
53*4882a593Smuzhiyun }
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun #endif /* _ASM_E820_API_H */
56