Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
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_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 */