include/asm-x86/e820.h

   1 #ifndef __ASM_E820_H
   2 #define __ASM_E820_H
   3 #define E820MAP 0x2d0           /* our map */
   4 #define E820MAX 128             /* number of entries in E820MAP */
   5 #define E820NR  0x1e8           /* # entries in E820MAP */
   6
   7 #define E820_RAM        1
   8 #define E820_RESERVED   2
   9 #define E820_ACPI       3
  10 #define E820_NVS        4
  11
  12 #ifndef __ASSEMBLY__
  13 struct e820entry {
  14         __u64 addr;     /* start of memory segment */
  15         __u64 size;     /* size of memory segment */
  16         __u32 type;     /* type of memory segment */
  17 } __attribute__((packed));
  18
  19 struct e820map {
  20         __u32 nr_map;
  21         struct e820entry map[E820MAX];
  22 };
  23 #endif /* __ASSEMBLY__ */
  24
  25 #define ISA_START_ADDRESS       0xa0000
  26 #define ISA_END_ADDRESS         0x100000
  27 #define is_ISA_range(s, e) ((s) >= ISA_START_ADDRESS && (e) < ISA_END_ADDRESS)
  28
  29 #define BIOS_BEGIN              0x000a0000
  30 #define BIOS_END                0x00100000
  31
  32 #ifdef __KERNEL__
  33 #ifdef CONFIG_X86_32
  34 # include "e820_32.h"
  35 #else
  36 # include "e820_64.h"
  37 #endif
  38 #endif /* __KERNEL__ */
  39
  40 #endif  /* __ASM_E820_H */