diff options
Diffstat (limited to 'arch/x86/boot/boot.h')
| -rw-r--r-- | arch/x86/boot/boot.h | 114 |
1 files changed, 88 insertions, 26 deletions
diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h index 7822a4983da..bd49ec61255 100644 --- a/arch/x86/boot/boot.h +++ b/arch/x86/boot/boot.h @@ -2,6 +2,7 @@ * * Copyright (C) 1991, 1992 Linus Torvalds * Copyright 2007 rPath, Inc. - All Rights Reserved + * Copyright 2009 Intel Corporation; author H. Peter Anvin * * This file is part of the Linux kernel, and is made available under * the terms of the GNU General Public License version 2. @@ -9,8 +10,6 @@ * ----------------------------------------------------------------------- */ /* - * arch/i386/boot/boot.h - * * Header file for the real-mode kernel code */ @@ -26,13 +25,20 @@ #include <linux/edd.h> #include <asm/boot.h> #include <asm/setup.h> +#include "bitops.h" +#include "ctype.h" +#include "cpuflags.h" /* Useful macros */ #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) +#define ARRAY_SIZE(x) (sizeof(x) / sizeof(*(x))) + extern struct setup_header hdr; extern struct boot_params boot_params; +#define cpu_relax() asm volatile("rep; nop") + /* Basic port I/O */ static inline void outb(u8 v, u16 port) { @@ -60,7 +66,7 @@ static inline void outl(u32 v, u16 port) { asm volatile("outl %0,%1" : : "a" (v), "dN" (port)); } -static inline u32 inl(u32 port) +static inline u32 inl(u16 port) { u32 v; asm volatile("inl %1,%0" : "=a" (v) : "dN" (port)); @@ -171,14 +177,6 @@ static inline void wrgs32(u32 v, addr_t addr) } /* Note: these only return true/false, not a signed return value! */ -static inline int memcmp(const void *s1, const void *s2, size_t len) -{ - u8 diff; - asm("repe; cmpsb; setnz %0" - : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len)); - return diff; -} - static inline int memcmp_fs(const void *s1, addr_t s2, size_t len) { u8 diff; @@ -194,11 +192,6 @@ static inline int memcmp_gs(const void *s1, addr_t s2, size_t len) return diff; } -static inline int isdigit(int ch) -{ - return (ch >= '0') && (ch <= '9'); -} - /* Heap -- available for dynamic lists. */ extern char _end[]; extern char *HEAP; @@ -227,11 +220,6 @@ void copy_to_fs(addr_t dst, void *src, size_t len); void *copy_from_fs(void *dst, addr_t src, size_t len); void copy_to_gs(addr_t dst, void *src, size_t len); void *copy_from_gs(void *dst, addr_t src, size_t len); -void *memcpy(void *dst, void *src, size_t len); -void *memset(void *dst, int c, size_t len); - -#define memcpy(d,s,l) __builtin_memcpy(d,s,l) -#define memset(d,c,l) __builtin_memset(d,c,l) /* a20.c */ int enable_a20(void); @@ -239,14 +227,80 @@ int enable_a20(void); /* apm.c */ int query_apm_bios(void); +/* bioscall.c */ +struct biosregs { + union { + struct { + u32 edi; + u32 esi; + u32 ebp; + u32 _esp; + u32 ebx; + u32 edx; + u32 ecx; + u32 eax; + u32 _fsgs; + u32 _dses; + u32 eflags; + }; + struct { + u16 di, hdi; + u16 si, hsi; + u16 bp, hbp; + u16 _sp, _hsp; + u16 bx, hbx; + u16 dx, hdx; + u16 cx, hcx; + u16 ax, hax; + u16 gs, fs; + u16 es, ds; + u16 flags, hflags; + }; + struct { + u8 dil, dih, edi2, edi3; + u8 sil, sih, esi2, esi3; + u8 bpl, bph, ebp2, ebp3; + u8 _spl, _sph, _esp2, _esp3; + u8 bl, bh, ebx2, ebx3; + u8 dl, dh, edx2, edx3; + u8 cl, ch, ecx2, ecx3; + u8 al, ah, eax2, eax3; + }; + }; +}; +void intcall(u8 int_no, const struct biosregs *ireg, struct biosregs *oreg); + /* cmdline.c */ -int cmdline_find_option(const char *option, char *buffer, int bufsize); -int cmdline_find_option_bool(const char *option); +int __cmdline_find_option(unsigned long cmdline_ptr, const char *option, char *buffer, int bufsize); +int __cmdline_find_option_bool(unsigned long cmdline_ptr, const char *option); +static inline int cmdline_find_option(const char *option, char *buffer, int bufsize) +{ + unsigned long cmd_line_ptr = boot_params.hdr.cmd_line_ptr; + + if (cmd_line_ptr >= 0x100000) + return -1; /* inaccessible */ + + return __cmdline_find_option(cmd_line_ptr, option, buffer, bufsize); +} + +static inline int cmdline_find_option_bool(const char *option) +{ + unsigned long cmd_line_ptr = boot_params.hdr.cmd_line_ptr; + + if (cmd_line_ptr >= 0x100000) + return -1; /* inaccessible */ + + return __cmdline_find_option_bool(cmd_line_ptr, option); +} /* cpu.c, cpucheck.c */ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr); int validate_cpu(void); +/* early_serial_console.c */ +extern int early_serial_base; +void console_init(void); + /* edd.c */ void query_edd(void); @@ -271,10 +325,16 @@ int sprintf(char *buf, const char *fmt, ...); int vsprintf(char *buf, const char *fmt, va_list args); int printf(const char *fmt, ...); +/* regs.c */ +void initregs(struct biosregs *regs); + /* string.c */ int strcmp(const char *str1, const char *str2); +int strncmp(const char *cs, const char *ct, size_t count); size_t strnlen(const char *s, size_t maxlen); unsigned int atou(const char *s); +unsigned long long simple_strtoull(const char *cp, char **endp, unsigned int base); +size_t strlen(const char *s); /* tty.c */ void puts(const char *); @@ -286,12 +346,14 @@ int getchar_timeout(void); /* video.c */ void set_video(void); +/* video-mode.c */ +int set_mode(u16 mode); +int mode_defined(u16 mode); +void probe_cards(int unsafe); + /* video-vesa.c */ void vesa_store_edid(void); -/* voyager.c */ -int query_voyager(void); - #endif /* __ASSEMBLY__ */ #endif /* BOOT_BOOT_H */ |