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1965aae3 PA |
1 | #ifndef _ASM_X86_BIOS_EBDA_H |
2 | #define _ASM_X86_BIOS_EBDA_H | |
1da177e4 | 3 | |
2c0903f2 AM |
4 | #include <asm/io.h> |
5 | ||
1da177e4 LT |
6 | /* |
7 | * there is a real-mode segmented pointer pointing to the | |
8 | * 4K EBDA area at 0x40E. | |
9 | */ | |
10 | static inline unsigned int get_bios_ebda(void) | |
11 | { | |
12 | unsigned int address = *(unsigned short *)phys_to_virt(0x40E); | |
13 | address <<= 4; | |
14 | return address; /* 0 means none */ | |
15 | } | |
16 | ||
0c51a965 HY |
17 | void reserve_ebda_region(void); |
18 | ||
46eaa670 IM |
19 | #ifdef CONFIG_X86_CHECK_BIOS_CORRUPTION |
20 | /* | |
21 | * This is obviously not a great place for this, but we want to be | |
22 | * able to scatter it around anywhere in the kernel. | |
23 | */ | |
24 | void check_for_bios_corruption(void); | |
25 | void start_periodic_check_for_corruption(void); | |
26 | #else | |
27 | static inline void check_for_bios_corruption(void) | |
28 | { | |
29 | } | |
30 | ||
31 | static inline void start_periodic_check_for_corruption(void) | |
32 | { | |
33 | } | |
34 | #endif | |
35 | ||
1965aae3 | 36 | #endif /* _ASM_X86_BIOS_EBDA_H */ |