18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 28c2ecf20Sopenharmony_ci#ifndef _ASM_E820_API_H 38c2ecf20Sopenharmony_ci#define _ASM_E820_API_H 48c2ecf20Sopenharmony_ci 58c2ecf20Sopenharmony_ci#include <asm/e820/types.h> 68c2ecf20Sopenharmony_ci 78c2ecf20Sopenharmony_ciextern struct e820_table *e820_table; 88c2ecf20Sopenharmony_ciextern struct e820_table *e820_table_kexec; 98c2ecf20Sopenharmony_ciextern struct e820_table *e820_table_firmware; 108c2ecf20Sopenharmony_ci 118c2ecf20Sopenharmony_ciextern unsigned long pci_mem_start; 128c2ecf20Sopenharmony_ci 138c2ecf20Sopenharmony_ciextern bool e820__mapped_raw_any(u64 start, u64 end, enum e820_type type); 148c2ecf20Sopenharmony_ciextern bool e820__mapped_any(u64 start, u64 end, enum e820_type type); 158c2ecf20Sopenharmony_ciextern bool e820__mapped_all(u64 start, u64 end, enum e820_type type); 168c2ecf20Sopenharmony_ci 178c2ecf20Sopenharmony_ciextern void e820__range_add (u64 start, u64 size, enum e820_type type); 188c2ecf20Sopenharmony_ciextern u64 e820__range_update(u64 start, u64 size, enum e820_type old_type, enum e820_type new_type); 198c2ecf20Sopenharmony_ciextern u64 e820__range_remove(u64 start, u64 size, enum e820_type old_type, bool check_type); 208c2ecf20Sopenharmony_ci 218c2ecf20Sopenharmony_ciextern void e820__print_table(char *who); 228c2ecf20Sopenharmony_ciextern int e820__update_table(struct e820_table *table); 238c2ecf20Sopenharmony_ciextern void e820__update_table_print(void); 248c2ecf20Sopenharmony_ci 258c2ecf20Sopenharmony_ciextern unsigned long e820__end_of_ram_pfn(void); 268c2ecf20Sopenharmony_ciextern unsigned long e820__end_of_low_ram_pfn(void); 278c2ecf20Sopenharmony_ci 288c2ecf20Sopenharmony_ciextern u64 e820__memblock_alloc_reserved(u64 size, u64 align); 298c2ecf20Sopenharmony_ciextern void e820__memblock_setup(void); 308c2ecf20Sopenharmony_ci 318c2ecf20Sopenharmony_ciextern void e820__reserve_setup_data(void); 328c2ecf20Sopenharmony_ciextern void e820__finish_early_params(void); 338c2ecf20Sopenharmony_ciextern void e820__reserve_resources(void); 348c2ecf20Sopenharmony_ciextern void e820__reserve_resources_late(void); 358c2ecf20Sopenharmony_ci 368c2ecf20Sopenharmony_ciextern void e820__memory_setup(void); 378c2ecf20Sopenharmony_ciextern void e820__memory_setup_extended(u64 phys_addr, u32 data_len); 388c2ecf20Sopenharmony_ciextern char *e820__memory_setup_default(void); 398c2ecf20Sopenharmony_ciextern void e820__setup_pci_gap(void); 408c2ecf20Sopenharmony_ci 418c2ecf20Sopenharmony_ciextern void e820__reallocate_tables(void); 428c2ecf20Sopenharmony_ciextern void e820__register_nosave_regions(unsigned long limit_pfn); 438c2ecf20Sopenharmony_ci 448c2ecf20Sopenharmony_ciextern int e820__get_entry_type(u64 start, u64 end); 458c2ecf20Sopenharmony_ci 468c2ecf20Sopenharmony_ci/* 478c2ecf20Sopenharmony_ci * Returns true iff the specified range [start,end) is completely contained inside 488c2ecf20Sopenharmony_ci * the ISA region. 498c2ecf20Sopenharmony_ci */ 508c2ecf20Sopenharmony_cistatic inline bool is_ISA_range(u64 start, u64 end) 518c2ecf20Sopenharmony_ci{ 528c2ecf20Sopenharmony_ci return start >= ISA_START_ADDRESS && end <= ISA_END_ADDRESS; 538c2ecf20Sopenharmony_ci} 548c2ecf20Sopenharmony_ci 558c2ecf20Sopenharmony_ci#endif /* _ASM_E820_API_H */ 56