Linux Kernel  3.7.1
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boot.h
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1 #ifndef _ASM_X86_BOOT_H
2 #define _ASM_X86_BOOT_H
3 
4 /* Internal svga startup constants */
5 #define NORMAL_VGA 0xffff /* 80x25 mode */
6 #define EXTENDED_VGA 0xfffe /* 80x50 mode */
7 #define ASK_VGA 0xfffd /* ask for it at bootup */
8 
9 #ifdef __KERNEL__
10 
11 #include <asm/pgtable_types.h>
12 
13 /* Physical address where kernel should be loaded. */
14 #define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
15  + (CONFIG_PHYSICAL_ALIGN - 1)) \
16  & ~(CONFIG_PHYSICAL_ALIGN - 1))
17 
18 /* Minimum kernel alignment, as a power of two */
19 #ifdef CONFIG_X86_64
20 #define MIN_KERNEL_ALIGN_LG2 PMD_SHIFT
21 #else
22 #define MIN_KERNEL_ALIGN_LG2 (PAGE_SHIFT + THREAD_SIZE_ORDER)
23 #endif
24 #define MIN_KERNEL_ALIGN (_AC(1, UL) << MIN_KERNEL_ALIGN_LG2)
25 
26 #if (CONFIG_PHYSICAL_ALIGN & (CONFIG_PHYSICAL_ALIGN-1)) || \
27  (CONFIG_PHYSICAL_ALIGN < MIN_KERNEL_ALIGN)
28 #error "Invalid value for CONFIG_PHYSICAL_ALIGN"
29 #endif
30 
31 #ifdef CONFIG_KERNEL_BZIP2
32 #define BOOT_HEAP_SIZE 0x400000
33 #else /* !CONFIG_KERNEL_BZIP2 */
34 
35 #define BOOT_HEAP_SIZE 0x8000
36 
37 #endif /* !CONFIG_KERNEL_BZIP2 */
38 
39 #ifdef CONFIG_X86_64
40 #define BOOT_STACK_SIZE 0x4000
41 #else
42 #define BOOT_STACK_SIZE 0x1000
43 #endif
44 
45 #endif /* __KERNEL__ */
46 
47 #endif /* _ASM_X86_BOOT_H */