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author | Iru Cai <mytbk920423@gmail.com> | 2019-10-30 14:21:52 +0800 |
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committer | Iru Cai <mytbk920423@gmail.com> | 2019-10-30 14:48:38 +0800 |
commit | ae51f41d14f548d494ac41e0d21137c5a4c3f59c (patch) | |
tree | 6ddb9d1aaa7bd5bad5bbf8497edc2e08ff208d79 /arch/x86/include/asm/e820.h | |
download | uext4-ae51f41d14f548d494ac41e0d21137c5a4c3f59c.tar.xz |
import the U-Boot code and make it compile
Diffstat (limited to 'arch/x86/include/asm/e820.h')
-rw-r--r-- | arch/x86/include/asm/e820.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/x86/include/asm/e820.h b/arch/x86/include/asm/e820.h new file mode 100644 index 0000000..9d29f82 --- /dev/null +++ b/arch/x86/include/asm/e820.h @@ -0,0 +1,30 @@ +#ifndef _ASM_X86_E820_H +#define _ASM_X86_E820_H + +#define E820MAX 128 /* number of entries in E820MAP */ + +#define E820_RAM 1 +#define E820_RESERVED 2 +#define E820_ACPI 3 +#define E820_NVS 4 +#define E820_UNUSABLE 5 + +#ifndef __ASSEMBLY__ +#include <linux/types.h> + +struct e820_entry { + __u64 addr; /* start of memory segment */ + __u64 size; /* size of memory segment */ + __u32 type; /* type of memory segment */ +} __attribute__((packed)); + +#define ISA_START_ADDRESS 0xa0000 +#define ISA_END_ADDRESS 0x100000 + +#endif /* __ASSEMBLY__ */ + +/* Implementation defined function to install an e820 map */ +unsigned int install_e820_map(unsigned int max_entries, + struct e820_entry *); + +#endif /* _ASM_X86_E820_H */ |