1#ifndef _ASM_X86_E820_H 2#define _ASM_X86_E820_H 3 4#ifdef CONFIG_EFI 5#include <linux/numa.h> 6#define E820_X_MAX (E820MAX + 3 * MAX_NUMNODES) 7#else /* ! CONFIG_EFI */ 8#define E820_X_MAX E820MAX 9#endif 10#include <uapi/asm/e820.h> 11#ifndef __ASSEMBLY__ 12/* see comment in arch/x86/kernel/e820.c */ 13extern struct e820map e820; 14extern struct e820map e820_saved; 15 16extern unsigned long pci_mem_start; 17extern int e820_any_mapped(u64 start, u64 end, unsigned type); 18extern int e820_all_mapped(u64 start, u64 end, unsigned type); 19extern void e820_add_region(u64 start, u64 size, int type); 20extern void e820_print_map(char *who); 21extern int 22sanitize_e820_map(struct e820entry *biosmap, int max_nr_map, u32 *pnr_map); 23extern u64 e820_update_range(u64 start, u64 size, unsigned old_type, 24 unsigned new_type); 25extern u64 e820_remove_range(u64 start, u64 size, unsigned old_type, 26 int checktype); 27extern void update_e820(void); 28extern void e820_setup_gap(void); 29extern int e820_search_gap(unsigned long *gapstart, unsigned long *gapsize, 30 unsigned long start_addr, unsigned long long end_addr); 31struct setup_data; 32extern void parse_e820_ext(u64 phys_addr, u32 data_len); 33 34#if defined(CONFIG_X86_64) || \ 35 (defined(CONFIG_X86_32) && defined(CONFIG_HIBERNATION)) 36extern void e820_mark_nosave_regions(unsigned long limit_pfn); 37#else 38static inline void e820_mark_nosave_regions(unsigned long limit_pfn) 39{ 40} 41#endif 42 43extern unsigned long e820_end_of_ram_pfn(void); 44extern unsigned long e820_end_of_low_ram_pfn(void); 45extern u64 early_reserve_e820(u64 sizet, u64 align); 46 47void memblock_x86_fill(void); 48void memblock_find_dma_reserve(void); 49 50extern void finish_e820_parsing(void); 51extern void e820_reserve_resources(void); 52extern void e820_reserve_resources_late(void); 53extern void setup_memory_map(void); 54extern char *default_machine_specific_memory_setup(void); 55 56/* 57 * Returns true iff the specified range [s,e) is completely contained inside 58 * the ISA region. 59 */ 60static inline bool is_ISA_range(u64 s, u64 e) 61{ 62 return s >= ISA_START_ADDRESS && e <= ISA_END_ADDRESS; 63} 64 65#endif /* __ASSEMBLY__ */ 66#include <linux/ioport.h> 67 68#define HIGH_MEMORY (1024*1024) 69#endif /* _ASM_X86_E820_H */ 70