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Linux kernel mirror (for testing)
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linux
1#ifndef _ASM_X86_SETUP_H
2#define _ASM_X86_SETUP_H
3
4#ifdef __KERNEL__
5
6#define COMMAND_LINE_SIZE 2048
7
8#ifndef __ASSEMBLY__
9
10/*
11 * Any setup quirks to be performed?
12 */
13struct mpc_cpu;
14struct mpc_bus;
15struct mpc_oemtable;
16
17struct x86_quirks {
18 int (*arch_pre_time_init)(void);
19 int (*arch_time_init)(void);
20 int (*arch_pre_intr_init)(void);
21 int (*arch_intr_init)(void);
22 int (*arch_trap_init)(void);
23 char * (*arch_memory_setup)(void);
24 int (*mach_get_smp_config)(unsigned int early);
25 int (*mach_find_smp_config)(unsigned int reserve);
26
27 int *mpc_record;
28 int (*mpc_apic_id)(struct mpc_cpu *m);
29 void (*mpc_oem_bus_info)(struct mpc_bus *m, char *name);
30 void (*mpc_oem_pci_bus)(struct mpc_bus *m);
31 void (*smp_read_mpc_oem)(struct mpc_oemtable *oemtable,
32 unsigned short oemsize);
33 int (*setup_ioapic_ids)(void);
34};
35
36extern void x86_quirk_intr_init(void);
37
38extern void x86_quirk_trap_init(void);
39
40extern void x86_quirk_pre_time_init(void);
41extern void x86_quirk_time_init(void);
42
43#endif /* __ASSEMBLY__ */
44
45#ifdef __i386__
46
47#include <linux/pfn.h>
48/*
49 * Reserved space for vmalloc and iomap - defined in asm/page.h
50 */
51#define MAXMEM_PFN PFN_DOWN(MAXMEM)
52#define MAX_NONPAE_PFN (1 << 20)
53
54#endif /* __i386__ */
55
56#define PARAM_SIZE 4096 /* sizeof(struct boot_params) */
57
58#define OLD_CL_MAGIC 0xA33F
59#define OLD_CL_ADDRESS 0x020 /* Relative to real mode data */
60#define NEW_CL_POINTER 0x228 /* Relative to real mode data */
61
62#ifndef __ASSEMBLY__
63#include <asm/bootparam.h>
64
65/* Interrupt control for vSMPowered x86_64 systems */
66#ifdef CONFIG_X86_64
67void vsmp_init(void);
68#else
69static inline void vsmp_init(void) { }
70#endif
71
72void setup_bios_corruption_check(void);
73
74#ifdef CONFIG_X86_VISWS
75extern void visws_early_detect(void);
76extern int is_visws_box(void);
77#else
78static inline void visws_early_detect(void) { }
79static inline int is_visws_box(void) { return 0; }
80#endif
81
82extern struct x86_quirks *x86_quirks;
83extern unsigned long saved_video_mode;
84
85#ifndef CONFIG_PARAVIRT
86#define paravirt_post_allocator_init() do {} while (0)
87#endif
88
89#ifndef _SETUP
90
91/*
92 * This is set up by the setup-routine at boot-time
93 */
94extern struct boot_params boot_params;
95
96/*
97 * Do NOT EVER look at the BIOS memory size location.
98 * It does not work on many machines.
99 */
100#define LOWMEMSIZE() (0x9f000)
101
102/* exceedingly early brk-like allocator */
103extern unsigned long _brk_end;
104void *extend_brk(size_t size, size_t align);
105
106/*
107 * Reserve space in the brk section. The name must be unique within
108 * the file, and somewhat descriptive. The size is in bytes. Must be
109 * used at file scope.
110 *
111 * (This uses a temp function to wrap the asm so we can pass it the
112 * size parameter; otherwise we wouldn't be able to. We can't use a
113 * "section" attribute on a normal variable because it always ends up
114 * being @progbits, which ends up allocating space in the vmlinux
115 * executable.)
116 */
117#define RESERVE_BRK(name,sz) \
118 static void __section(.discard) __used \
119 __brk_reservation_fn_##name##__(void) { \
120 asm volatile ( \
121 ".pushsection .brk_reservation,\"aw\",@nobits;" \
122 ".brk." #name ":" \
123 " 1:.skip %c0;" \
124 " .size .brk." #name ", . - 1b;" \
125 " .popsection" \
126 : : "i" (sz)); \
127 }
128
129#ifdef __i386__
130
131void __init i386_start_kernel(void);
132extern void probe_roms(void);
133
134#else
135void __init x86_64_start_kernel(char *real_mode);
136void __init x86_64_start_reservations(char *real_mode_data);
137
138#endif /* __i386__ */
139#endif /* _SETUP */
140#else
141#define RESERVE_BRK(name,sz) \
142 .pushsection .brk_reservation,"aw",@nobits; \
143.brk.name: \
1441: .skip sz; \
145 .size .brk.name,.-1b; \
146 .popsection
147#endif /* __ASSEMBLY__ */
148#endif /* __KERNEL__ */
149
150#endif /* _ASM_X86_SETUP_H */