xref: /linux/arch/x86/include/asm/boot.h (revision b8bb76713ec50df2f11efee386e16f93d51e1076)
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 /* Physical address where kernel should be loaded. */
12 #define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
13 				+ (CONFIG_PHYSICAL_ALIGN - 1)) \
14 				& ~(CONFIG_PHYSICAL_ALIGN - 1))
15 
16 #ifdef CONFIG_KERNEL_BZIP2
17 #define BOOT_HEAP_SIZE             0x400000
18 #else /* !CONFIG_KERNEL_BZIP2 */
19 
20 #ifdef CONFIG_X86_64
21 #define BOOT_HEAP_SIZE	0x7000
22 #else
23 #define BOOT_HEAP_SIZE	0x4000
24 #endif
25 
26 #endif /* !CONFIG_KERNEL_BZIP2 */
27 
28 #ifdef CONFIG_X86_64
29 #define BOOT_STACK_SIZE	0x4000
30 #else
31 #define BOOT_STACK_SIZE	0x1000
32 #endif
33 
34 #endif /* __KERNEL__ */
35 
36 #endif /* _ASM_X86_BOOT_H */
37