188 lines
4.3 KiB
C
188 lines
4.3 KiB
C
// Basic x86 asm functions and function defs.
|
|
//
|
|
// Copyright (C) 2008 Kevin O'Connor <kevin@koconnor.net>
|
|
//
|
|
// This file may be distributed under the terms of the GNU LGPLv3 license.
|
|
#ifndef __UTIL_H
|
|
#define __UTIL_H
|
|
|
|
#include "types.h" // u32
|
|
|
|
static inline void irq_disable(void)
|
|
{
|
|
asm volatile("cli": : :"memory");
|
|
}
|
|
|
|
static inline void irq_enable(void)
|
|
{
|
|
asm volatile("sti": : :"memory");
|
|
}
|
|
|
|
static inline unsigned long irq_save(void)
|
|
{
|
|
unsigned long flags;
|
|
asm volatile("pushfl ; popl %0" : "=g" (flags));
|
|
irq_disable();
|
|
return flags;
|
|
}
|
|
|
|
static inline void irq_restore(unsigned long flags)
|
|
{
|
|
asm volatile("pushl %0 ; popfl" : : "g" (flags) : "memory", "cc");
|
|
}
|
|
|
|
static inline void cpu_relax(void)
|
|
{
|
|
asm volatile("rep ; nop": : :"memory");
|
|
}
|
|
|
|
static inline void nop(void)
|
|
{
|
|
asm volatile("nop");
|
|
}
|
|
|
|
static inline void hlt(void)
|
|
{
|
|
asm volatile("hlt");
|
|
}
|
|
|
|
static inline void wbinvd(void)
|
|
{
|
|
asm volatile("wbinvd");
|
|
}
|
|
|
|
static inline void cpuid(u32 index, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx)
|
|
{
|
|
asm("cpuid"
|
|
: "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx)
|
|
: "0" (index));
|
|
}
|
|
|
|
static inline u64 rdtscll(void)
|
|
{
|
|
u64 val;
|
|
asm volatile("rdtsc" : "=A" (val));
|
|
return val;
|
|
}
|
|
|
|
// util.c
|
|
inline u32 stack_hop(u32 eax, u32 edx, u32 ecx, void *func);
|
|
u8 checksum(u8 *far_data, u32 len);
|
|
void *memset(void *s, int c, size_t n);
|
|
void *memcpy(void *d1, const void *s1, size_t len);
|
|
void *memcpy_far(void *far_d1, const void *far_s1, size_t len);
|
|
void *memmove(void *d, const void *s, size_t len);
|
|
struct bregs;
|
|
inline void call16(struct bregs *callregs);
|
|
inline void call16big(struct bregs *callregs);
|
|
inline void __call16_int(struct bregs *callregs, u16 offset);
|
|
#define call16_int(nr, callregs) do { \
|
|
extern void irq_trampoline_ ##nr (); \
|
|
__call16_int((callregs), (u32)&irq_trampoline_ ##nr ); \
|
|
} while (0)
|
|
inline void call16_simpint(int nr, u32 *eax, u32 *flags);
|
|
|
|
// output.c
|
|
void debug_serial_setup();
|
|
void BX_PANIC(const char *fmt, ...)
|
|
__attribute__ ((format (printf, 1, 2)))
|
|
__attribute__ ((noreturn));
|
|
void printf(const char *fmt, ...)
|
|
__attribute__ ((format (printf, 1, 2)));
|
|
void __dprintf(const char *fmt, ...)
|
|
__attribute__ ((format (printf, 1, 2)));
|
|
#define dprintf(lvl, fmt, args...) do { \
|
|
if (CONFIG_DEBUG_LEVEL && (lvl) <= CONFIG_DEBUG_LEVEL) \
|
|
__dprintf((fmt) , ##args ); \
|
|
} while (0)
|
|
void __debug_enter(struct bregs *regs, const char *fname);
|
|
void __debug_stub(struct bregs *regs, int lineno, const char *fname);
|
|
void __debug_isr(const char *fname);
|
|
#define debug_enter(regs, lvl) do { \
|
|
if ((lvl) && (lvl) <= CONFIG_DEBUG_LEVEL) \
|
|
__debug_enter((regs), __func__); \
|
|
} while (0)
|
|
#define debug_isr(lvl) do { \
|
|
if ((lvl) && (lvl) <= CONFIG_DEBUG_LEVEL) \
|
|
__debug_isr(__func__); \
|
|
} while (0)
|
|
#define debug_stub(regs) \
|
|
__debug_stub((regs), __LINE__, __func__)
|
|
|
|
// kbd.c
|
|
void kbd_setup();
|
|
void handle_15c2(struct bregs *regs);
|
|
|
|
// mouse.c
|
|
void mouse_setup();
|
|
|
|
// system.c
|
|
extern u32 RamSize;
|
|
extern u64 RamSizeOver4G;
|
|
void mathcp_setup();
|
|
|
|
// serial.c
|
|
void serial_setup();
|
|
void lpt_setup();
|
|
|
|
// clock.c
|
|
void timer_setup();
|
|
void ndelay(u32 count);
|
|
void udelay(u32 count);
|
|
void mdelay(u32 count);
|
|
u64 calc_future_tsc(u32 msecs);
|
|
void handle_1583(struct bregs *regs);
|
|
void handle_1586(struct bregs *regs);
|
|
|
|
// apm.c
|
|
void VISIBLE16 handle_1553(struct bregs *regs);
|
|
|
|
// pcibios.c
|
|
void handle_1ab1(struct bregs *regs);
|
|
|
|
// shadow.c
|
|
void make_bios_writable();
|
|
void make_bios_readonly();
|
|
|
|
// pciinit.c
|
|
void pci_bios_setup(void);
|
|
|
|
// smm.c
|
|
void smm_init();
|
|
|
|
// smpdetect.c
|
|
int smp_probe(void);
|
|
void smp_probe_setup(void);
|
|
|
|
// mptable.c
|
|
void mptable_init(void);
|
|
|
|
// smbios.c
|
|
void smbios_init(void);
|
|
|
|
// coreboot.c
|
|
void coreboot_fill_map();
|
|
|
|
// vgahooks.c
|
|
void handle_155f();
|
|
|
|
// optionroms.c
|
|
void vga_setup();
|
|
void optionrom_setup();
|
|
|
|
// resume.c
|
|
void init_dma();
|
|
|
|
// pnpbios.c
|
|
#define PNP_SIGNATURE 0x506e5024 // $PnP
|
|
u16 get_pnp_offset();
|
|
void pnp_setup();
|
|
|
|
// mtrr.c
|
|
void mtrr_setup(void);
|
|
|
|
// romlayout.S
|
|
void reset_vector() __attribute__ ((noreturn));
|
|
|
|
#endif // util.h
|