LXR linux/arch/x86/include/asm/e820/api.h

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