tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
43#ifdef CONFIG_MEMTEST
44extern void early_memtest(unsigned long start, unsigned long end);
45#else
46static inline void early_memtest(unsigned long start, unsigned long end)
47{
48}
49#endif
50
51extern unsigned long e820_end_of_ram_pfn(void);
52extern unsigned long e820_end_of_low_ram_pfn(void);
53extern u64 early_reserve_e820(u64 sizet, u64 align);
54
55void memblock_x86_fill(void);
56void memblock_find_dma_reserve(void);
57
58extern void finish_e820_parsing(void);
59extern void e820_reserve_resources(void);
60extern void e820_reserve_resources_late(void);
61extern void setup_memory_map(void);
62extern char *default_machine_specific_memory_setup(void);
63
64/*
65 * Returns true iff the specified range [s,e) is completely contained inside
66 * the ISA region.
67 */
68static inline bool is_ISA_range(u64 s, u64 e)
69{
70 return s >= ISA_START_ADDRESS && e <= ISA_END_ADDRESS;
71}
72
73#endif /* __ASSEMBLY__ */
74#include <linux/ioport.h>
75
76#define HIGH_MEMORY (1024*1024)
77#endif /* _ASM_X86_E820_H */