Commit | Line | Data |
---|---|---|
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 | ||
ef685298 TG |
8 | #ifdef __i386__ |
9 | ||
10 | #include <linux/pfn.h> | |
11 | /* | |
12 | * Reserved space for vmalloc and iomap - defined in asm/page.h | |
13 | */ | |
14 | #define MAXMEM_PFN PFN_DOWN(MAXMEM) | |
15 | #define MAX_NONPAE_PFN (1 << 20) | |
16 | ||
fa76dab9 PA |
17 | #endif /* __i386__ */ |
18 | ||
19 | #define PARAM_SIZE 4096 /* sizeof(struct boot_params) */ | |
ef685298 | 20 | |
ef685298 | 21 | #define OLD_CL_MAGIC 0xA33F |
fa76dab9 | 22 | #define OLD_CL_ADDRESS 0x020 /* Relative to real mode data */ |
ef685298 TG |
23 | #define NEW_CL_POINTER 0x228 /* Relative to real mode data */ |
24 | ||
ef685298 TG |
25 | #ifndef __ASSEMBLY__ |
26 | #include <asm/bootparam.h> | |
845b3944 | 27 | #include <asm/x86_init.h> |
ef685298 | 28 | |
15c55443 | 29 | /* Interrupt control for vSMPowered x86_64 systems */ |
70511134 | 30 | #ifdef CONFIG_X86_64 |
15c55443 | 31 | void vsmp_init(void); |
129d8bc8 YL |
32 | #else |
33 | static inline void vsmp_init(void) { } | |
34 | #endif | |
15c55443 JSR |
35 | |
36 | void setup_bios_corruption_check(void); | |
37 | ||
38 | #ifdef CONFIG_X86_VISWS | |
39 | extern void visws_early_detect(void); | |
15c55443 JSR |
40 | #else |
41 | static inline void visws_early_detect(void) { } | |
15c55443 JSR |
42 | #endif |
43 | ||
15c55443 JSR |
44 | extern unsigned long saved_video_mode; |
45 | ||
8fee697d TG |
46 | extern void reserve_standard_io_resources(void); |
47 | extern void i386_reserve_resources(void); | |
845b3944 | 48 | extern void setup_default_timer_irq(void); |
8fee697d | 49 | |
3f4110a4 TG |
50 | #ifdef CONFIG_X86_MRST |
51 | extern void x86_mrst_early_setup(void); | |
52 | #else | |
53 | static inline void x86_mrst_early_setup(void) { } | |
54 | #endif | |
55 | ||
c751e17b TG |
56 | #ifdef CONFIG_X86_INTEL_CE |
57 | extern void x86_ce4100_early_setup(void); | |
58 | #else | |
59 | static inline void x86_ce4100_early_setup(void) { } | |
60 | #endif | |
61 | ||
fa76dab9 PA |
62 | #ifndef _SETUP |
63 | ||
ef685298 TG |
64 | /* |
65 | * This is set up by the setup-routine at boot-time | |
66 | */ | |
67 | extern struct boot_params boot_params; | |
68 | ||
ef685298 TG |
69 | /* |
70 | * Do NOT EVER look at the BIOS memory size location. | |
71 | * It does not work on many machines. | |
72 | */ | |
73 | #define LOWMEMSIZE() (0x9f000) | |
74 | ||
93dbda7c JF |
75 | /* exceedingly early brk-like allocator */ |
76 | extern unsigned long _brk_end; | |
77 | void *extend_brk(size_t size, size_t align); | |
78 | ||
796216a5 JF |
79 | /* |
80 | * Reserve space in the brk section. The name must be unique within | |
81 | * the file, and somewhat descriptive. The size is in bytes. Must be | |
82 | * used at file scope. | |
83 | * | |
84 | * (This uses a temp function to wrap the asm so we can pass it the | |
85 | * size parameter; otherwise we wouldn't be able to. We can't use a | |
86 | * "section" attribute on a normal variable because it always ends up | |
87 | * being @progbits, which ends up allocating space in the vmlinux | |
88 | * executable.) | |
89 | */ | |
90 | #define RESERVE_BRK(name,sz) \ | |
2895cd2a | 91 | static void __section(.discard.text) __used notrace \ |
796216a5 JF |
92 | __brk_reservation_fn_##name##__(void) { \ |
93 | asm volatile ( \ | |
94 | ".pushsection .brk_reservation,\"aw\",@nobits;" \ | |
0b1c723d | 95 | ".brk." #name ":" \ |
796216a5 | 96 | " 1:.skip %c0;" \ |
0b1c723d | 97 | " .size .brk." #name ", . - 1b;" \ |
796216a5 JF |
98 | " .popsection" \ |
99 | : : "i" (sz)); \ | |
100 | } | |
101 | ||
161b0275 JF |
102 | /* Helper for reserving space for arrays of things */ |
103 | #define RESERVE_BRK_ARRAY(type, name, entries) \ | |
104 | type *name; \ | |
105 | RESERVE_BRK(name, sizeof(type) * entries) | |
106 | ||
5d94e81f | 107 | extern void probe_roms(void); |
95a71a45 YL |
108 | #ifdef __i386__ |
109 | ||
f0d43100 | 110 | void __init i386_start_kernel(void); |
746ef0cd | 111 | |
102e3b8d JF |
112 | #else |
113 | void __init x86_64_start_kernel(char *real_mode); | |
f97013fd JF |
114 | void __init x86_64_start_reservations(char *real_mode_data); |
115 | ||
ef685298 | 116 | #endif /* __i386__ */ |
fa76dab9 | 117 | #endif /* _SETUP */ |
796216a5 JF |
118 | #else |
119 | #define RESERVE_BRK(name,sz) \ | |
120 | .pushsection .brk_reservation,"aw",@nobits; \ | |
0b1c723d | 121 | .brk.name: \ |
796216a5 | 122 | 1: .skip sz; \ |
0b1c723d | 123 | .size .brk.name,.-1b; \ |
796216a5 | 124 | .popsection |
ef685298 TG |
125 | #endif /* __ASSEMBLY__ */ |
126 | #endif /* __KERNEL__ */ | |
127 | ||
1965aae3 | 128 | #endif /* _ASM_X86_SETUP_H */ |