1 #ifndef _ASM_X86_SETUP_H
2 #define _ASM_X86_SETUP_H
6 #define COMMAND_LINE_SIZE 2048
10 #include <asm/x86_init.h>
13 * Any setup quirks to be performed?
17 int (*arch_pre_time_init)(void);
18 int (*arch_time_init)(void);
21 extern void x86_quirk_pre_time_init(void);
22 extern void x86_quirk_time_init(void);
24 #endif /* __ASSEMBLY__ */
28 #include <linux/pfn.h>
30 * Reserved space for vmalloc and iomap - defined in asm/page.h
32 #define MAXMEM_PFN PFN_DOWN(MAXMEM)
33 #define MAX_NONPAE_PFN (1 << 20)
37 #define PARAM_SIZE 4096 /* sizeof(struct boot_params) */
39 #define OLD_CL_MAGIC 0xA33F
40 #define OLD_CL_ADDRESS 0x020 /* Relative to real mode data */
41 #define NEW_CL_POINTER 0x228 /* Relative to real mode data */
44 #include <asm/bootparam.h>
46 /* Interrupt control for vSMPowered x86_64 systems */
50 static inline void vsmp_init(void) { }
53 void setup_bios_corruption_check(void);
55 #ifdef CONFIG_X86_VISWS
56 extern void visws_early_detect(void);
57 extern int is_visws_box(void);
59 static inline void visws_early_detect(void) { }
60 static inline int is_visws_box(void) { return 0; }
63 extern struct x86_quirks *x86_quirks;
64 extern unsigned long saved_video_mode;
66 extern void reserve_standard_io_resources(void);
67 extern void i386_reserve_resources(void);
72 * This is set up by the setup-routine at boot-time
74 extern struct boot_params boot_params;
77 * Do NOT EVER look at the BIOS memory size location.
78 * It does not work on many machines.
80 #define LOWMEMSIZE() (0x9f000)
82 /* exceedingly early brk-like allocator */
83 extern unsigned long _brk_end;
84 void *extend_brk(size_t size, size_t align);
87 * Reserve space in the brk section. The name must be unique within
88 * the file, and somewhat descriptive. The size is in bytes. Must be
91 * (This uses a temp function to wrap the asm so we can pass it the
92 * size parameter; otherwise we wouldn't be able to. We can't use a
93 * "section" attribute on a normal variable because it always ends up
94 * being @progbits, which ends up allocating space in the vmlinux
97 #define RESERVE_BRK(name,sz) \
98 static void __section(.discard) __used \
99 __brk_reservation_fn_##name##__(void) { \
101 ".pushsection .brk_reservation,\"aw\",@nobits;" \
104 " .size .brk." #name ", . - 1b;" \
111 void __init i386_start_kernel(void);
112 extern void probe_roms(void);
115 void __init x86_64_start_kernel(char *real_mode);
116 void __init x86_64_start_reservations(char *real_mode_data);
118 #endif /* __i386__ */
121 #define RESERVE_BRK(name,sz) \
122 .pushsection .brk_reservation,"aw",@nobits; \
125 .size .brk.name,.-1b; \
127 #endif /* __ASSEMBLY__ */
128 #endif /* __KERNEL__ */
130 #endif /* _ASM_X86_SETUP_H */