1*4882a593Smuzhiyun #ifndef _ASM_X86_E820_H 2*4882a593Smuzhiyun #define _ASM_X86_E820_H 3*4882a593Smuzhiyun 4*4882a593Smuzhiyun #define E820MAX 128 /* number of entries in E820MAP */ 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun #define E820_RAM 1 7*4882a593Smuzhiyun #define E820_RESERVED 2 8*4882a593Smuzhiyun #define E820_ACPI 3 9*4882a593Smuzhiyun #define E820_NVS 4 10*4882a593Smuzhiyun #define E820_UNUSABLE 5 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #ifndef __ASSEMBLY__ 13*4882a593Smuzhiyun #include <linux/types.h> 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun struct e820entry { 16*4882a593Smuzhiyun __u64 addr; /* start of memory segment */ 17*4882a593Smuzhiyun __u64 size; /* size of memory segment */ 18*4882a593Smuzhiyun __u32 type; /* type of memory segment */ 19*4882a593Smuzhiyun } __attribute__((packed)); 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun #define ISA_START_ADDRESS 0xa0000 22*4882a593Smuzhiyun #define ISA_END_ADDRESS 0x100000 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun #endif /* __ASSEMBLY__ */ 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun /* Implementation defined function to install an e820 map */ 27*4882a593Smuzhiyun unsigned install_e820_map(unsigned max_entries, struct e820entry *); 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun #endif /* _ASM_X86_E820_H */ 30