120 lines
2.9 KiB
C
120 lines
2.9 KiB
C
|
#ifndef _ASM_X86_SETUP_H
|
||
|
|
#define _ASM_X86_SETUP_H
|
||
|
|
|
||
|
|
#ifdef __KERNEL__
|
||
|
|
|
||
|
|
#define COMMAND_LINE_SIZE 2048
|
||
|
|
|
||
|
|
#ifdef __i386__
|
||
|
|
|
||
|
|
#include <linux/pfn.h>
|
||
|
|
/*
|
||
|
|
* Reserved space for vmalloc and iomap - defined in asm/page.h
|
||
|
|
*/
|
||
|
|
#define MAXMEM_PFN PFN_DOWN(MAXMEM)
|
||
|
|
#define MAX_NONPAE_PFN (1 << 20)
|
||
|
|
|
||
|
|
#endif /* __i386__ */
|
||
|
|
|
||
|
|
#define PARAM_SIZE 4096 /* sizeof(struct boot_params) */
|
||
|
|
|
||
|
|
#define OLD_CL_MAGIC 0xA33F
|
||
|
|
#define OLD_CL_ADDRESS 0x020 /* Relative to real mode data */
|
||
|
|
#define NEW_CL_POINTER 0x228 /* Relative to real mode data */
|
||
|
|
|
||
|
|
#ifndef __ASSEMBLY__
|
||
|
|
#include <asm/bootparam.h>
|
||
|
|
#include <asm/x86_init.h>
|
||
|
|
|
||
|
|
/* Interrupt control for vSMPowered x86_64 systems */
|
||
|
|
#ifdef CONFIG_X86_64
|
||
|
|
void vsmp_init(void);
|
||
|
|
#else
|
||
|
|
static inline void vsmp_init(void) { }
|
||
|
|
#endif
|
||
|
|
|
||
|
|
void setup_bios_corruption_check(void);
|
||
|
|
|
||
|
|
#ifdef CONFIG_X86_VISWS
|
||
|
|
extern void visws_early_detect(void);
|
||
|
|
extern int is_visws_box(void);
|
||
|
|
#else
|
||
|
|
static inline void visws_early_detect(void) { }
|
||
|
|
static inline int is_visws_box(void) { return 0; }
|
||
|
|
#endif
|
||
|
|
|
||
|
|
extern unsigned long saved_video_mode;
|
||
|
|
|
||
|
|
extern void reserve_standard_io_resources(void);
|
||
|
|
extern void i386_reserve_resources(void);
|
||
|
|
extern void setup_default_timer_irq(void);
|
||
|
|
|
||
|
|
#ifdef CONFIG_X86_MRST
|
||
|
|
extern void x86_mrst_early_setup(void);
|
||
|
|
#else
|
||
|
|
static inline void x86_mrst_early_setup(void) { }
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef _SETUP
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This is set up by the setup-routine at boot-time
|
||
|
|
*/
|
||
|
|
extern struct boot_params boot_params;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Do NOT EVER look at the BIOS memory size location.
|
||
|
|
* It does not work on many machines.
|
||
|
|
*/
|
||
|
|
#define LOWMEMSIZE() (0x9f000)
|
||
|
|
|
||
|
|
/* exceedingly early brk-like allocator */
|
||
|
|
extern unsigned long _brk_end;
|
||
|
|
void *extend_brk(size_t size, size_t align);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Reserve space in the brk section. The name must be unique within
|
||
|
|
* the file, and somewhat descriptive. The size is in bytes. Must be
|
||
|
|
* used at file scope.
|
||
|
|
*
|
||
|
|
* (This uses a temp function to wrap the asm so we can pass it the
|
||
|
|
* size parameter; otherwise we wouldn't be able to. We can't use a
|
||
|
|
* "section" attribute on a normal variable because it always ends up
|
||
|
|
* being @progbits, which ends up allocating space in the vmlinux
|
||
|
|
* executable.)
|
||
|
|
*/
|
||
|
|
#define RESERVE_BRK(name,sz) \
|
||
|
|
static void __section(.discard) __used \
|
||
|
|
__brk_reservation_fn_##name##__(void) { \
|
||
|
|
asm volatile ( \
|
||
|
|
".pushsection .brk_reservation,\"aw\",@nobits;" \
|
||
|
|
".brk." #name ":" \
|
||
|
|
" 1:.skip %c0;" \
|
||
|
|
" .size .brk." #name ", . - 1b;" \
|
||
|
|
" .popsection" \
|
||
|
|
: : "i" (sz)); \
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef __i386__
|
||
|
|
|
||
|
|
void __init i386_start_kernel(void);
|
||
|
|
extern void probe_roms(void);
|
||
|
|
|
||
|
|
#else
|
||
|
|
void __init x86_64_start_kernel(char *real_mode);
|
||
|
|
void __init x86_64_start_reservations(char *real_mode_data);
|
||
|
|
|
||
|
|
#endif /* __i386__ */
|
||
|
|
#endif /* _SETUP */
|
||
|
|
#else
|
||
|
|
#define RESERVE_BRK(name,sz) \
|
||
|
|
.pushsection .brk_reservation,"aw",@nobits; \
|
||
|
|
.brk.name: \
|
||
|
|
1: .skip sz; \
|
||
|
|
.size .brk.name,.-1b; \
|
||
|
|
.popsection
|
||
|
|
#endif /* __ASSEMBLY__ */
|
||
|
|
#endif /* __KERNEL__ */
|
||
|
|
|
||
|
|
#endif /* _ASM_X86_SETUP_H */
|