Commit | Line | Data |
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1965aae3 PA |
1 | #ifndef _ASM_X86_SETUP_H |
2 | #define _ASM_X86_SETUP_H | |
ef685298 | 3 | |
dbca1df4 CG |
4 | #ifdef __KERNEL__ |
5 | ||
ef685298 TG |
6 | #define COMMAND_LINE_SIZE 2048 |
7 | ||
746ef0cd | 8 | #ifndef __ASSEMBLY__ |
2785c8d0 | 9 | |
57844a8f TG |
10 | #include <asm/x86_init.h> |
11 | ||
3b33553b IM |
12 | /* |
13 | * Any setup quirks to be performed? | |
14 | */ | |
8e6dafd6 | 15 | |
3c9cb6de | 16 | struct x86_quirks { |
63b5d7af | 17 | int (*arch_pre_time_init)(void); |
3c9cb6de YL |
18 | int (*arch_time_init)(void); |
19 | int (*arch_pre_intr_init)(void); | |
20 | int (*arch_intr_init)(void); | |
21 | int (*arch_trap_init)(void); | |
3c9cb6de YL |
22 | }; |
23 | ||
8e6dafd6 IM |
24 | extern void x86_quirk_intr_init(void); |
25 | ||
26 | extern void x86_quirk_trap_init(void); | |
27 | ||
28 | extern void x86_quirk_pre_time_init(void); | |
29 | extern void x86_quirk_time_init(void); | |
30 | ||
746ef0cd GOC |
31 | #endif /* __ASSEMBLY__ */ |
32 | ||
ef685298 TG |
33 | #ifdef __i386__ |
34 | ||
35 | #include <linux/pfn.h> | |
36 | /* | |
37 | * Reserved space for vmalloc and iomap - defined in asm/page.h | |
38 | */ | |
39 | #define MAXMEM_PFN PFN_DOWN(MAXMEM) | |
40 | #define MAX_NONPAE_PFN (1 << 20) | |
41 | ||
fa76dab9 PA |
42 | #endif /* __i386__ */ |
43 | ||
44 | #define PARAM_SIZE 4096 /* sizeof(struct boot_params) */ | |
ef685298 | 45 | |
ef685298 | 46 | #define OLD_CL_MAGIC 0xA33F |
fa76dab9 | 47 | #define OLD_CL_ADDRESS 0x020 /* Relative to real mode data */ |
ef685298 TG |
48 | #define NEW_CL_POINTER 0x228 /* Relative to real mode data */ |
49 | ||
ef685298 TG |
50 | #ifndef __ASSEMBLY__ |
51 | #include <asm/bootparam.h> | |
52 | ||
15c55443 | 53 | /* Interrupt control for vSMPowered x86_64 systems */ |
70511134 | 54 | #ifdef CONFIG_X86_64 |
15c55443 | 55 | void vsmp_init(void); |
129d8bc8 YL |
56 | #else |
57 | static inline void vsmp_init(void) { } | |
58 | #endif | |
15c55443 JSR |
59 | |
60 | void setup_bios_corruption_check(void); | |
61 | ||
62 | #ifdef CONFIG_X86_VISWS | |
63 | extern void visws_early_detect(void); | |
64 | extern int is_visws_box(void); | |
65 | #else | |
66 | static inline void visws_early_detect(void) { } | |
67 | static inline int is_visws_box(void) { return 0; } | |
68 | #endif | |
69 | ||
15c55443 JSR |
70 | extern struct x86_quirks *x86_quirks; |
71 | extern unsigned long saved_video_mode; | |
72 | ||
73 | #ifndef CONFIG_PARAVIRT | |
74 | #define paravirt_post_allocator_init() do {} while (0) | |
75 | #endif | |
76 | ||
8fee697d TG |
77 | extern void reserve_standard_io_resources(void); |
78 | extern void i386_reserve_resources(void); | |
79 | ||
fa76dab9 PA |
80 | #ifndef _SETUP |
81 | ||
ef685298 TG |
82 | /* |
83 | * This is set up by the setup-routine at boot-time | |
84 | */ | |
85 | extern struct boot_params boot_params; | |
86 | ||
ef685298 TG |
87 | /* |
88 | * Do NOT EVER look at the BIOS memory size location. | |
89 | * It does not work on many machines. | |
90 | */ | |
91 | #define LOWMEMSIZE() (0x9f000) | |
92 | ||
93dbda7c JF |
93 | /* exceedingly early brk-like allocator */ |
94 | extern unsigned long _brk_end; | |
95 | void *extend_brk(size_t size, size_t align); | |
96 | ||
796216a5 JF |
97 | /* |
98 | * Reserve space in the brk section. The name must be unique within | |
99 | * the file, and somewhat descriptive. The size is in bytes. Must be | |
100 | * used at file scope. | |
101 | * | |
102 | * (This uses a temp function to wrap the asm so we can pass it the | |
103 | * size parameter; otherwise we wouldn't be able to. We can't use a | |
104 | * "section" attribute on a normal variable because it always ends up | |
105 | * being @progbits, which ends up allocating space in the vmlinux | |
106 | * executable.) | |
107 | */ | |
108 | #define RESERVE_BRK(name,sz) \ | |
0b1c723d | 109 | static void __section(.discard) __used \ |
796216a5 JF |
110 | __brk_reservation_fn_##name##__(void) { \ |
111 | asm volatile ( \ | |
112 | ".pushsection .brk_reservation,\"aw\",@nobits;" \ | |
0b1c723d | 113 | ".brk." #name ":" \ |
796216a5 | 114 | " 1:.skip %c0;" \ |
0b1c723d | 115 | " .size .brk." #name ", . - 1b;" \ |
796216a5 JF |
116 | " .popsection" \ |
117 | : : "i" (sz)); \ | |
118 | } | |
119 | ||
95a71a45 YL |
120 | #ifdef __i386__ |
121 | ||
f0d43100 | 122 | void __init i386_start_kernel(void); |
a9c1182f | 123 | extern void probe_roms(void); |
746ef0cd | 124 | |
102e3b8d JF |
125 | #else |
126 | void __init x86_64_start_kernel(char *real_mode); | |
f97013fd JF |
127 | void __init x86_64_start_reservations(char *real_mode_data); |
128 | ||
ef685298 | 129 | #endif /* __i386__ */ |
fa76dab9 | 130 | #endif /* _SETUP */ |
796216a5 JF |
131 | #else |
132 | #define RESERVE_BRK(name,sz) \ | |
133 | .pushsection .brk_reservation,"aw",@nobits; \ | |
0b1c723d | 134 | .brk.name: \ |
796216a5 | 135 | 1: .skip sz; \ |
0b1c723d | 136 | .size .brk.name,.-1b; \ |
796216a5 | 137 | .popsection |
ef685298 TG |
138 | #endif /* __ASSEMBLY__ */ |
139 | #endif /* __KERNEL__ */ | |
140 | ||
1965aae3 | 141 | #endif /* _ASM_X86_SETUP_H */ |