| Graeme Russ | 95ffaba | 2010-04-24 00:05:49 +1000 | [diff] [blame] | 1 | #ifndef _ASM_X86_E820_H |
| 2 | #define _ASM_X86_E820_H |
| Graeme Russ | 95ffaba | 2010-04-24 00:05:49 +1000 | [diff] [blame] | 3 | |
| Bin Meng | 24ff8e7 | 2015-04-21 12:21:35 +0800 | [diff] [blame] | 4 | #define E820MAX 128 /* number of entries in E820MAP */ |
| Graeme Russ | 95ffaba | 2010-04-24 00:05:49 +1000 | [diff] [blame] | 5 | |
| 6 | #define E820_RAM 1 |
| 7 | #define E820_RESERVED 2 |
| 8 | #define E820_ACPI 3 |
| 9 | #define E820_NVS 4 |
| 10 | #define E820_UNUSABLE 5 |
| 11 | |
| Graeme Russ | 95ffaba | 2010-04-24 00:05:49 +1000 | [diff] [blame] | 12 | #ifndef __ASSEMBLY__ |
| 13 | #include <linux/types.h> |
| Bin Meng | 24ff8e7 | 2015-04-21 12:21:35 +0800 | [diff] [blame] | 14 | |
| Graeme Russ | 95ffaba | 2010-04-24 00:05:49 +1000 | [diff] [blame] | 15 | struct e820entry { |
| 16 | __u64 addr; /* start of memory segment */ |
| 17 | __u64 size; /* size of memory segment */ |
| 18 | __u32 type; /* type of memory segment */ |
| 19 | } __attribute__((packed)); |
| 20 | |
| Graeme Russ | 95ffaba | 2010-04-24 00:05:49 +1000 | [diff] [blame] | 21 | #define ISA_START_ADDRESS 0xa0000 |
| 22 | #define ISA_END_ADDRESS 0x100000 |
| 23 | |
| Graeme Russ | 95ffaba | 2010-04-24 00:05:49 +1000 | [diff] [blame] | 24 | #endif /* __ASSEMBLY__ */ |
| 25 | |
| Bin Meng | 59ec719 | 2015-10-07 20:19:10 -0700 | [diff] [blame] | 26 | /* Implementation defined function to install an e820 map */ |
| 27 | unsigned install_e820_map(unsigned max_entries, struct e820entry *); |
| 28 | |
| Graeme Russ | 95ffaba | 2010-04-24 00:05:49 +1000 | [diff] [blame] | 29 | #endif /* _ASM_X86_E820_H */ |