asm/e820/api.h

b2441318SGreg Kroah-Hartman/* SPDX-License-Identifier: GPL-2.0 */
66441bd3SIngo Molnar#ifndef _ASM_E820_API_H
66441bd3SIngo Molnar#define _ASM_E820_API_H
66441bd3SIngo Molnar
66441bd3SIngo Molnar#include <asm/e820/types.h>
66441bd3SIngo Molnar
61a50101SIngo Molnarextern struct e820_table *e820_table;
a09bae0fSChen Yuextern struct e820_table *e820_table_kexec;
12df216cSChen Yuextern struct e820_table *e820_table_firmware;
66441bd3SIngo Molnar
66441bd3SIngo Molnarextern unsigned long pci_mem_start;
0f856508SIngo Molnar
*0c55671fSKarimAllah Ahmedextern bool e820__mapped_raw_any(u64 start, u64 end, enum e820_type type);
81b3e090SIngo Molnarextern bool e820__mapped_any(u64 start, u64 end, enum e820_type type);
81b3e090SIngo Molnarextern bool e820__mapped_all(u64 start, u64 end, enum e820_type type);
ab6bc04cSIngo Molnar
6afc03b8SIngo Molnarextern void e820__range_add   (u64 start, u64 size, enum e820_type type);
6afc03b8SIngo Molnarextern u64  e820__range_update(u64 start, u64 size, enum e820_type old_type, enum e820_type new_type);
81b3e090SIngo Molnarextern u64  e820__range_remove(u64 start, u64 size, enum e820_type old_type, bool check_type);
ab6bc04cSIngo Molnar
be0c3f0fSIngo Molnarextern void e820__print_table(char *who);
f9748fa0SIngo Molnarextern int  e820__update_table(struct e820_table *table);
6464d294SIngo Molnarextern void e820__update_table_print(void);
2504be78SIngo Molnar
0c6fc11aSIngo Molnarextern unsigned long e820__end_of_ram_pfn(void);
0c6fc11aSIngo Molnarextern unsigned long e820__end_of_low_ram_pfn(void);
2504be78SIngo Molnar
1a127034SIngo Molnarextern u64  e820__memblock_alloc_reserved(u64 size, u64 align);
4918e228SIngo Molnarextern void e820__memblock_setup(void);
2504be78SIngo Molnar
1a127034SIngo Molnarextern void e820__reserve_setup_data(void);
9641bdafSIngo Molnarextern void e820__finish_early_params(void);
1506c8dcSIngo Molnarextern void e820__reserve_resources(void);
1506c8dcSIngo Molnarextern void e820__reserve_resources_late(void);
2504be78SIngo Molnar
103e2063SIngo Molnarextern void e820__memory_setup(void);
2504be78SIngo Molnarextern void e820__memory_setup_extended(u64 phys_addr, u32 data_len);
103e2063SIngo Molnarextern char *e820__memory_setup_default(void);
2504be78SIngo Molnarextern void e820__setup_pci_gap(void);
2504be78SIngo Molnar
0c6fc11aSIngo Molnarextern void e820__reallocate_tables(void);
090d7171SIngo Molnarextern void e820__register_nosave_regions(unsigned long limit_pfn);
0f856508SIngo Molnar
d68baa3fSTom Lendackyextern int  e820__get_entry_type(u64 start, u64 end);
d68baa3fSTom Lendacky
66441bd3SIngo Molnar/*
0f856508SIngo Molnar * Returns true iff the specified range [start,end) is completely contained inside
66441bd3SIngo Molnar * the ISA region.
66441bd3SIngo Molnar */
0f856508SIngo Molnarstatic inline bool is_ISA_range(u64 start, u64 end)
66441bd3SIngo Molnar{
0f856508SIngo Molnar	return start >= ISA_START_ADDRESS && end <= ISA_END_ADDRESS;
66441bd3SIngo Molnar}
66441bd3SIngo Molnar
66441bd3SIngo Molnar#endif /* _ASM_E820_API_H */