| // Basic x86 asm functions and function defs. |
| // |
| // Copyright (C) 2008,2009 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_far(u16 buf_seg, void *buf_far, u32 len); |
| u8 checksum(void *buf, u32 len); |
| int memcmp(const void *s1, const void *s2, size_t n); |
| size_t strlen(const char *s); |
| int strcmp(const char *s1, const char *s2); |
| inline void memset_far(u16 d_seg, void *d_far, u8 c, size_t len); |
| inline void memset16_far(u16 d_seg, void *d_far, u16 c, size_t len); |
| void *memset(void *s, int c, size_t n); |
| void memcpy4(void *d1, const void *s1, size_t len); |
| #define memcpy(d1, s1, len) __builtin_memcpy((d1), (s1), (len)) |
| inline void memcpy_far(u16 d_seg, void *d_far |
| , u16 s_seg, const void *s_far, size_t len); |
| void *memmove(void *d, const void *s, size_t len); |
| char *strtcpy(char *dest, const char *src, 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); |
| void usleep(u32 usec); |
| int get_keystroke(int msec); |
| |
| // output.c |
| void debug_serial_setup(); |
| void 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__) |
| void hexdump(void *d, int len); |
| |
| // 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); |
| |
| // smbios.c |
| void smbios_init(void); |
| |
| // coreboot.c |
| const char *cbfs_findNprefix(const char *prefix, int n); |
| int cbfs_copy_optionrom(void *dst, u32 maxlen, u32 vendev); |
| void cbfs_run_payload(const char *filename); |
| struct cbfs_file; |
| struct cbfs_file *cbfs_copy_gen_optionrom(void *dst, u32 maxlen |
| , struct cbfs_file *file); |
| void coreboot_setup(); |
| |
| // vgahooks.c |
| void handle_155f(); |
| |
| // optionroms.c |
| void call_bcv(u16 seg, u16 ip); |
| 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)); |
| |
| // misc.c |
| extern u8 BiosChecksum; |
| |
| #endif // util.h |