1 // Basic x86 asm functions and function defs.
3 // Copyright (C) 2008 Kevin O'Connor <kevin@koconnor.net>
5 // This file may be distributed under the terms of the GNU GPLv3 license.
9 #include "types.h" // u32
11 static inline void irq_disable(void)
13 asm volatile("cli": : :"memory");
16 static inline void irq_enable(void)
18 asm volatile("sti": : :"memory");
21 static inline unsigned long irq_save(void)
24 asm volatile("pushfl ; popl %0" : "=g" (flags));
29 static inline void irq_restore(unsigned long flags)
31 asm volatile("pushl %0 ; popfl" : : "g" (flags) : "memory", "cc");
34 static inline void cpu_relax(void)
36 asm volatile("rep ; nop": : :"memory");
39 static inline void nop(void)
44 static inline void hlt(void)
49 static inline void wbinvd(void)
51 asm volatile("wbinvd");
54 static inline void cpuid(u32 index, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx)
57 : "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx)
61 void *memset(void *s, int c, size_t n);
62 void *memcpy(void *d1, const void *s1, size_t len);
63 void *memmove(void *d, const void *s, size_t len);
66 inline void call16(struct bregs *callregs);
67 inline void __call16_int(struct bregs *callregs, u16 offset);
68 #define call16_int(nr, callregs) do { \
69 extern void irq_trampoline_ ##nr (); \
70 __call16_int((callregs), (u32)&irq_trampoline_ ##nr ); \
74 void debug_serial_setup();
75 void BX_PANIC(const char *fmt, ...)
76 __attribute__ ((format (printf, 1, 2)))
77 __attribute__ ((noreturn));
78 void printf(const char *fmt, ...)
79 __attribute__ ((format (printf, 1, 2)));
80 void __dprintf(const char *fmt, ...)
81 __attribute__ ((format (printf, 1, 2)));
82 #define dprintf(lvl, fmt, args...) do { \
83 if (CONFIG_DEBUG_LEVEL && (lvl) <= CONFIG_DEBUG_LEVEL) \
84 __dprintf((fmt) , ##args ); \
86 void __debug_enter(const char *fname, struct bregs *regs);
87 void __debug_fail(const char *fname, struct bregs *regs);
88 void __debug_stub(const char *fname, struct bregs *regs);
89 void __debug_isr(const char *fname);
90 #define debug_enter(regs, lvl) do { \
91 if ((lvl) && (lvl) <= CONFIG_DEBUG_LEVEL) \
92 __debug_enter(__func__, regs); \
94 #define debug_isr(lvl) do { \
95 if ((lvl) && (lvl) <= CONFIG_DEBUG_LEVEL) \
96 __debug_isr(__func__); \
98 #define debug_stub(regs) \
99 __debug_stub(__func__, regs)
103 void handle_15c2(struct bregs *regs);
117 int usleep(u32 count);
118 void handle_1583(struct bregs *regs);
119 void handle_1586(struct bregs *regs);
122 void VISIBLE16 handle_1553(struct bregs *regs);
125 void handle_1ab1(struct bregs *regs);
128 u8 checksum(u8 *far_data, u32 len);
131 void make_bios_writable();
132 void make_bios_readonly();
135 void pci_bios_setup(void);
144 void mptable_init(void);
147 void smbios_init(void);
150 void printf_bootdev(u16 bootdev);
153 void interactive_bootmenu();
156 void coreboot_fill_map();