BMOSP/include/arch.h

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/**
* arch.h
* Заголовок для инициализации архитектурно-зависимых функций
*
* Данный заголовочный файл содержит определения которые используются для
* инициализации архитектуры
*
*/
#ifndef ARCH_H
#define ARCH_H
#include <lock.h>
#include <stdint.h>
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#include <sys.h>
#define STACK_SIZE 32 * 1024 // 16 килобайт на стек
typedef struct task {
uint64_t rax, rbx, rcx, rdx;
uint64_t rsi, rdi, rsp, rbp;
uint64_t cr3;
uint64_t cpu_time;
uint64_t cpu_time_expired;
uint64_t id;
char *id_str;
void *stack;
void *entry;
uint64_t status; // 0 - на удаление 1 - работает
struct task *last;
struct task *next;
} __attribute__((packed)) task_t;
struct frame {
uint64_t rbp;
uint64_t rbx;
uint64_t r15;
uint64_t r14;
uint64_t r13;
uint64_t r12;
uint64_t r11;
uint64_t r10;
uint64_t r9;
uint64_t r8;
uint64_t rax;
uint64_t rcx;
uint64_t rdx;
uint64_t rsi;
uint64_t rdi;
uint64_t int_number;
uint64_t err;
uint64_t rip;
uint64_t cs;
uint64_t rflags;
uint64_t rsp;
uint64_t ss;
} __attribute__((packed));
typedef void (*int_entry_t)(struct frame *state);
extern lock_t task_lock;
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extern uint64_t task_f_init;
extern task_t *current_task;
void arch_init( );
void task_init( );
void task_after_init( );
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void task_switch( );
uint64_t task_new_thread(void (*func)(void *), char *name, void *arg);
void task_del_current( );
void task_del(uint64_t id);
void cpu_init( );
void pic_init( );
void pit_init( );
void idt_init( );
void idt_set_int(uint8_t vector, int_entry_t handler);
uint64_t arch_get_tick_b( );
uint64_t arch_get_tick_l( );
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uint64_t arch_get_tick( );
void com_write_byte(char byte);
void com_write_bytes(char *c, uint64_t n);
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time_t rtc_get_time( );
static inline void outb(uint16_t port, uint8_t val) {
asm volatile("outb %0, %1" : : "a"(val), "Nd"(port));
}
static inline uint8_t inb(uint16_t port) {
uint8_t ret;
asm volatile("inb %1, %0" : "=a"(ret) : "Nd"(port));
return ret;
}
static inline void outw(uint16_t port, uint16_t val) {
asm volatile("outw %0, %1" : : "a"(val), "Nd"(port));
}
static inline uint16_t inw(uint16_t port) {
uint16_t ret;
asm volatile("inw %1, %0" : "=a"(ret) : "Nd"(port));
return ret;
}
static inline void io_wait( ) {
outb(0x80, 0);
}
static inline void *hal_memset(void *s, char c, int64_t count) {
int64_t d0, d1;
asm volatile("rep\n\t"
"stosb"
: "=&c"(d0), "=&D"(d1)
: "a"(c), "1"(s), "0"(count)
: "memory");
return s;
}
static inline void *hal_memset_32(void *s, uint32_t c, int64_t count) {
int64_t d0, d1;
asm volatile("rep\n\t"
"stosl"
: "=&c"(d0), "=&D"(d1)
: "a"(c), "1"(s), "0"(count)
: "memory");
return s;
}
static inline void *hal_memcpy(void *dest, const void *src, int64_t count) {
int64_t d0, d1;
asm volatile("rep\n\t"
"movsb"
: "=&c"(d0), "=&D"(d1)
: "S"(src), "0"(count), "1"(dest)
: "memory");
return dest;
}
static inline void *hal_memcpy32(void *dest, const void *src, int64_t count) {
int64_t d0, d1;
asm volatile("rep\n\t"
"movsl"
: "=&c"(d0), "=&D"(d1)
: "S"(src), "0"(count), "1"(dest)
: "memory");
return dest;
}
#define GET_TICK_BIG arch_get_tick_b( )
#define GET_TICK_lOW arch_get_tick_l( )
#endif // arch.h