haiku/headers/private/kernel/arch/x86/arch_cpu.h
beveloper 5fe840b9b5 fixed address checking in ppc atomic functions.
fixed compilation on x86.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4361 a95241bf-73f2-0310-859d-f6bbb57e9c96
2003-08-21 23:36:06 +00:00

162 lines
3.7 KiB
C

/*
** Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
** Distributed under the terms of the NewOS License.
*/
#ifndef _KERNEL_ARCH_x86_CPU_H
#define _KERNEL_ARCH_x86_CPU_H
#include <ktypes.h>
#include <arch/x86/thread_struct.h>
#include <arch/x86/descriptors.h>
#define PAGE_SIZE 4096
#define _BIG_ENDIAN 0
#define _LITTLE_ENDIAN 1
struct tss {
uint16 prev_task;
uint16 unused0;
uint32 sp0;
uint32 ss0;
uint32 sp1;
uint32 ss1;
uint32 sp2;
uint32 ss2;
uint32 sp3;
uint32 ss3;
uint32 cr3;
uint32 eip, eflags, eax, ecx, edx, ebx, esp, ebp, esi, edi;
uint32 es, cs, ss, ds, fs, gs;
uint32 ldt_seg_selector;
uint16 unused1;
uint16 io_map_base;
};
/**************************************************************************/
typedef struct ptentry { // page table entry
unsigned int present:1;
unsigned int rw:1;
unsigned int user:1;
unsigned int write_through:1;
unsigned int cache_disabled:1;
unsigned int accessed:1;
unsigned int dirty:1;
unsigned int reserved:1;
unsigned int global:1;
unsigned int avail:3;
unsigned int addr:20;
} ptentry;
typedef struct pdentry { // page directory entry
unsigned int present:1;
unsigned int rw:1;
unsigned int user:1;
unsigned int write_through:1;
unsigned int cache_disabled:1;
unsigned int accessed:1;
unsigned int reserved:1;
unsigned int page_size:1;
unsigned int global:1;
unsigned int avail:3;
unsigned int addr:20;
} pdentry;
struct iframe {
unsigned int gs;
unsigned int fs;
unsigned int es;
unsigned int ds;
unsigned int edi;
unsigned int esi;
unsigned int ebp;
unsigned int esp;
unsigned int ebx;
unsigned int edx;
unsigned int ecx;
unsigned int eax;
unsigned int orig_eax;
unsigned int orig_edx;
unsigned int vector;
unsigned int error_code;
unsigned int eip;
unsigned int cs;
unsigned int flags;
unsigned int user_esp;
unsigned int user_ss;
};
#define nop() __asm__ ("nop"::)
void setup_system_time(unsigned int cv_factor);
void i386_context_switch(struct arch_thread *old_state, struct arch_thread *new_state, addr new_pgdir);
void i386_enter_uspace(addr entry, void *args1, void *args2, addr ustack_top);
void i386_set_tss_and_kstack(addr kstack);
void i386_switch_stack_and_call(addr stack, void (*func)(void *), void *arg);
void i386_swap_pgdir(addr new_pgdir);
void i386_fsave(void *fpu_state);
void i386_fxsave(void *fpu_state);
void i386_frstor(void *fpu_state);
void i386_fxrstor(void *fpu_state);
void i386_fsave_swap(void *old_fpu_state, void *new_fpu_state);
void i386_fxsave_swap(void *old_fpu_state, void *new_fpu_state);
#define read_ebp(value) \
__asm__("movl %%ebp,%0" : "=r" (value))
#define read_dr3(value) \
__asm__("movl %%dr3,%0" : "=r" (value))
#define write_dr3(value) \
__asm__("movl %0,%%dr3" : : "r" (value))
#define invalidate_TLB(va) \
__asm__("invlpg (%0)" : : "r" (va))
#define out8(value,port) \
__asm__ ("outb %%al,%%dx" : : "a" (value), "d" (port))
#define out16(value,port) \
__asm__ ("outw %%ax,%%dx" : : "a" (value), "d" (port))
#define out32(value,port) \
__asm__ ("outl %%eax,%%dx" : : "a" (value), "d" (port))
#define in8(port) ({ \
unsigned char _v; \
__asm__ volatile ("inb %%dx,%%al" : "=a" (_v) : "d" (port)); \
_v; \
})
#define in16(port) ({ \
unsigned short _v; \
__asm__ volatile ("inw %%dx,%%ax":"=a" (_v) : "d" (port)); \
_v; \
})
#define in32(port) ({ \
unsigned int _v; \
__asm__ volatile ("inl %%dx,%%eax":"=a" (_v) : "d" (port)); \
_v; \
})
#define out8_p(value,port) \
__asm__ ("outb %%al,%%dx\n" \
"\tjmp 1f\n" \
"1:\tjmp 1f\n" \
"1:" : : "a" (value), "d" (port))
#define in8_p(port) ({ \
unsigned char _v; \
__asm__ volatile ("inb %%dx,%%al\n" \
"\tjmp 1f\n" \
"1:\tjmp 1f\n" \
"1:" : "=a" (_v) : "d" (port)); \
_v; \
})
extern segment_descriptor *gGDT;
#endif /* _KERNEL_ARCH_x86_CPU_H */