api.h 1.9 KB

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