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?
20 int (*arch_pre_time_init
)(void);
21 int (*arch_time_init
)(void);
22 int (*arch_pre_intr_init
)(void);
23 int (*arch_intr_init
)(void);
24 int (*arch_trap_init
)(void);
25 int (*mach_get_smp_config
)(unsigned int early
);
26 int (*mach_find_smp_config
)(unsigned int reserve
);
29 int (*mpc_apic_id
)(struct mpc_cpu
*m
);
30 void (*mpc_oem_bus_info
)(struct mpc_bus
*m
, char *name
);
31 void (*mpc_oem_pci_bus
)(struct mpc_bus
*m
);
32 void (*smp_read_mpc_oem
)(struct mpc_oemtable
*oemtable
,
33 unsigned short oemsize
);
34 int (*setup_ioapic_ids
)(void);
37 extern void x86_quirk_intr_init(void);
39 extern void x86_quirk_trap_init(void);
41 extern void x86_quirk_pre_time_init(void);
42 extern void x86_quirk_time_init(void);
44 #endif /* __ASSEMBLY__ */
48 #include <linux/pfn.h>
50 * Reserved space for vmalloc and iomap - defined in asm/page.h
52 #define MAXMEM_PFN PFN_DOWN(MAXMEM)
53 #define MAX_NONPAE_PFN (1 << 20)
57 #define PARAM_SIZE 4096 /* sizeof(struct boot_params) */
59 #define OLD_CL_MAGIC 0xA33F
60 #define OLD_CL_ADDRESS 0x020 /* Relative to real mode data */
61 #define NEW_CL_POINTER 0x228 /* Relative to real mode data */
64 #include <asm/bootparam.h>
66 /* Interrupt control for vSMPowered x86_64 systems */
70 static inline void vsmp_init(void) { }
73 void setup_bios_corruption_check(void);
75 #ifdef CONFIG_X86_VISWS
76 extern void visws_early_detect(void);
77 extern int is_visws_box(void);
79 static inline void visws_early_detect(void) { }
80 static inline int is_visws_box(void) { return 0; }
83 extern struct x86_quirks
*x86_quirks
;
84 extern unsigned long saved_video_mode
;
86 #ifndef CONFIG_PARAVIRT
87 #define paravirt_post_allocator_init() do {} while (0)
90 extern void reserve_standard_io_resources(void);
91 extern void i386_reserve_resources(void);
96 * This is set up by the setup-routine at boot-time
98 extern struct boot_params boot_params
;
101 * Do NOT EVER look at the BIOS memory size location.
102 * It does not work on many machines.
104 #define LOWMEMSIZE() (0x9f000)
106 /* exceedingly early brk-like allocator */
107 extern unsigned long _brk_end
;
108 void *extend_brk(size_t size
, size_t align
);
111 * Reserve space in the brk section. The name must be unique within
112 * the file, and somewhat descriptive. The size is in bytes. Must be
113 * used at file scope.
115 * (This uses a temp function to wrap the asm so we can pass it the
116 * size parameter; otherwise we wouldn't be able to. We can't use a
117 * "section" attribute on a normal variable because it always ends up
118 * being @progbits, which ends up allocating space in the vmlinux
121 #define RESERVE_BRK(name,sz) \
122 static void __section(.discard) __used \
123 __brk_reservation_fn_##name##__(void) { \
125 ".pushsection .brk_reservation,\"aw\",@nobits;" \
128 " .size .brk." #name ", . - 1b;" \
135 void __init
i386_start_kernel(void);
136 extern void probe_roms(void);
139 void __init
x86_64_start_kernel(char *real_mode
);
140 void __init
x86_64_start_reservations(char *real_mode_data
);
142 #endif /* __i386__ */
145 #define RESERVE_BRK(name,sz) \
146 .pushsection .brk_reservation,"aw",@nobits; \
149 .size .brk.name,.-1b; \
151 #endif /* __ASSEMBLY__ */
152 #endif /* __KERNEL__ */
154 #endif /* _ASM_X86_SETUP_H */