api.h (1928B)
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); 20 21extern void e820__print_table(char *who); 22extern int e820__update_table(struct e820_table *table); 23extern void e820__update_table_print(void); 24 25extern unsigned long e820__end_of_ram_pfn(void); 26extern unsigned long e820__end_of_low_ram_pfn(void); 27 28extern u64 e820__memblock_alloc_reserved(u64 size, u64 align); 29extern void e820__memblock_setup(void); 30 31extern void e820__reserve_setup_data(void); 32extern void e820__finish_early_params(void); 33extern void e820__reserve_resources(void); 34extern void e820__reserve_resources_late(void); 35 36extern void e820__memory_setup(void); 37extern void e820__memory_setup_extended(u64 phys_addr, u32 data_len); 38extern char *e820__memory_setup_default(void); 39extern void e820__setup_pci_gap(void); 40 41extern void e820__reallocate_tables(void); 42extern void e820__register_nosave_regions(unsigned long limit_pfn); 43 44extern int e820__get_entry_type(u64 start, u64 end); 45 46/* 47 * Returns true iff the specified range [start,end) is completely contained inside 48 * the ISA region. 49 */ 50static inline bool is_ISA_range(u64 start, u64 end) 51{ 52 return start >= ISA_START_ADDRESS && end <= ISA_END_ADDRESS; 53} 54 55#endif /* _ASM_E820_API_H */