tracing: Avoid soft lockup in trace_pipe
[deliverable/linux.git] / arch / x86 / include / asm / boot.h
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1#ifndef _ASM_X86_BOOT_H
2#define _ASM_X86_BOOT_H
1da177e4 3
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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
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9#ifdef __KERNEL__
10
658dbfeb 11#include <asm/pgtable_types.h>
37ba7ab5 12
beb7dd86 13/* Physical address where kernel should be loaded. */
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14#define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
15 + (CONFIG_PHYSICAL_ALIGN - 1)) \
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16 & ~(CONFIG_PHYSICAL_ALIGN - 1))
17
37ba7ab5 18/* Minimum kernel alignment, as a power of two */
22f4319d 19#ifdef CONFIG_X86_64
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20#define MIN_KERNEL_ALIGN_LG2 PMD_SHIFT
21#else
658dbfeb 22#define MIN_KERNEL_ALIGN_LG2 (PAGE_SHIFT + THREAD_ORDER)
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23#endif
24#define MIN_KERNEL_ALIGN (_AC(1, UL) << MIN_KERNEL_ALIGN_LG2)
25
26#if (CONFIG_PHYSICAL_ALIGN & (CONFIG_PHYSICAL_ALIGN-1)) || \
6fc108a0 27 (CONFIG_PHYSICAL_ALIGN < MIN_KERNEL_ALIGN)
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28#error "Invalid value for CONFIG_PHYSICAL_ALIGN"
29#endif
30
95c4bff0 31#ifdef CONFIG_KERNEL_BZIP2
ae03c499 32#define BOOT_HEAP_SIZE 0x400000
95c4bff0 33#else /* !CONFIG_KERNEL_BZIP2 */
ae03c499 34
30314804 35#define BOOT_HEAP_SIZE 0x8000
ae03c499 36
95c4bff0 37#endif /* !CONFIG_KERNEL_BZIP2 */
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38
39#ifdef CONFIG_X86_64
40#define BOOT_STACK_SIZE 0x4000
41#else
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42#define BOOT_STACK_SIZE 0x1000
43#endif
44
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45#endif /* __KERNEL__ */
46
1965aae3 47#endif /* _ASM_X86_BOOT_H */
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