tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
fork
Configure Feed
Select the types of activity you want to include in your feed.
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_pre_intr_init(void);
37extern void x86_quirk_intr_init(void);
38
39extern void x86_quirk_trap_init(void);
40
41extern void x86_quirk_pre_time_init(void);
42extern void x86_quirk_time_init(void);
43
44#endif /* __ASSEMBLY__ */
45
46#ifdef __i386__
47
48#include <linux/pfn.h>
49/*
50 * Reserved space for vmalloc and iomap - defined in asm/page.h
51 */
52#define MAXMEM_PFN PFN_DOWN(MAXMEM)
53#define MAX_NONPAE_PFN (1 << 20)
54
55#endif /* __i386__ */
56
57#define PARAM_SIZE 4096 /* sizeof(struct boot_params) */
58
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 */
62
63#ifndef __ASSEMBLY__
64#include <asm/bootparam.h>
65
66/* Interrupt control for vSMPowered x86_64 systems */
67#ifdef CONFIG_X86_64
68void vsmp_init(void);
69#else
70static inline void vsmp_init(void) { }
71#endif
72
73void setup_bios_corruption_check(void);
74
75#ifdef CONFIG_X86_VISWS
76extern void visws_early_detect(void);
77extern int is_visws_box(void);
78#else
79static inline void visws_early_detect(void) { }
80static inline int is_visws_box(void) { return 0; }
81#endif
82
83extern struct x86_quirks *x86_quirks;
84extern unsigned long saved_video_mode;
85
86#ifndef CONFIG_PARAVIRT
87#define paravirt_post_allocator_init() do {} while (0)
88#endif
89
90#ifndef _SETUP
91
92/*
93 * This is set up by the setup-routine at boot-time
94 */
95extern struct boot_params boot_params;
96
97/*
98 * Do NOT EVER look at the BIOS memory size location.
99 * It does not work on many machines.
100 */
101#define LOWMEMSIZE() (0x9f000)
102
103/* exceedingly early brk-like allocator */
104extern unsigned long _brk_end;
105void *extend_brk(size_t size, size_t align);
106
107/*
108 * Reserve space in the brk section. The name must be unique within
109 * the file, and somewhat descriptive. The size is in bytes. Must be
110 * used at file scope.
111 *
112 * (This uses a temp function to wrap the asm so we can pass it the
113 * size parameter; otherwise we wouldn't be able to. We can't use a
114 * "section" attribute on a normal variable because it always ends up
115 * being @progbits, which ends up allocating space in the vmlinux
116 * executable.)
117 */
118#define RESERVE_BRK(name,sz) \
119 static void __section(.discard) __used \
120 __brk_reservation_fn_##name##__(void) { \
121 asm volatile ( \
122 ".pushsection .brk_reservation,\"aw\",@nobits;" \
123 ".brk." #name ":" \
124 " 1:.skip %c0;" \
125 " .size .brk." #name ", . - 1b;" \
126 " .popsection" \
127 : : "i" (sz)); \
128 }
129
130#ifdef __i386__
131
132void __init i386_start_kernel(void);
133extern void probe_roms(void);
134
135#else
136void __init x86_64_start_kernel(char *real_mode);
137void __init x86_64_start_reservations(char *real_mode_data);
138
139#endif /* __i386__ */
140#endif /* _SETUP */
141#else
142#define RESERVE_BRK(name,sz) \
143 .pushsection .brk_reservation,"aw",@nobits; \
144.brk.name: \
1451: .skip sz; \
146 .size .brk.name,.-1b; \
147 .popsection
148#endif /* __ASSEMBLY__ */
149#endif /* __KERNEL__ */
150
151#endif /* _ASM_X86_SETUP_H */