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Diffstat (limited to 'c/src/exec/score/cpu/i386/i386.h')
| -rw-r--r-- | c/src/exec/score/cpu/i386/i386.h | 493 |
1 files changed, 0 insertions, 493 deletions
diff --git a/c/src/exec/score/cpu/i386/i386.h b/c/src/exec/score/cpu/i386/i386.h deleted file mode 100644 index a8db759984..0000000000 --- a/c/src/exec/score/cpu/i386/i386.h +++ /dev/null @@ -1,493 +0,0 @@ -/* i386.h - * - * This include file contains information pertaining to the Intel - * i386 processor. - * - * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. - * On-Line Applications Research Corporation (OAR). - * All rights assigned to U.S. Government, 1994. - * - * This material may be reproduced by or for the U.S. Government pursuant - * to the copyright license under the clause at DFARS 252.227-7013. This - * notice must appear in all copies of this file and its derivatives. - * - * $Id$ - */ - -#ifndef __i386_h -#define __i386_h - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * The following define the CPU Family and Model within the family - * - * NOTE: The string "REPLACE_THIS_WITH_THE_CPU_MODEL" is replaced - * with the name of the appropriate macro for this target CPU. - */ - -#define i386 -#define REPLACE_THIS_WITH_THE_CPU_MODEL -#define REPLACE_THIS_WITH_THE_BSP - -/* - * This section contains the information required to build - * RTEMS for a particular member of the Intel i386 - * family when executing in protected mode. It does - * this by setting variables to indicate which implementation - * dependent features are present in a particular member - * of the family. - * - * Currently recognized: - * i386_fp (i386 DX or SX w/i387) - * i386_fp (i386 DX or SX w/o i387) - * i486dx - * i486sx - * pentium - * - * Floating point is the only feature which currently varies. Eventually - * the i486-plus level instruction for endian swapping should be added - * to this feature list. - */ - -#if defined(i386_fp) - -#define RTEMS_MODEL_NAME "i386 with i387" -#define I386_HAS_FPU 1 - -#elif defined(i386_nofp) - -#define RTEMS_MODEL_NAME "i386 w/o i387" -#define I386_HAS_FPU 1 - -#elif defined(i486dx) - -#define RTEMS_MODEL_NAME "i486dx" -#define I386_HAS_FPU 1 - -#elif defined(i486sx) - -#define RTEMS_MODEL_NAME "i486sx" -#define I386_HAS_FPU 0 - -#elif defined(pentium) - -#define RTEMS_MODEL_NAME "Pentium" -#define I386_HAS_FPU 1 - -#else - -#error "Unsupported CPU Model" - -#endif - -/* - * Define the name of the CPU family. - */ - -#define CPU_NAME "Intel i386" - -#ifndef ASM - -/* - * This section defines the basic types for this processor. - */ - -typedef unsigned char unsigned8; /* 8-bit unsigned integer */ -typedef unsigned short unsigned16; /* 16-bit unsigned integer */ -typedef unsigned int unsigned32; /* 32-bit unsigned integer */ -typedef unsigned long long unsigned64; /* 64-bit unsigned integer */ - -typedef unsigned16 Priority_Bit_map_control; - -typedef unsigned char signed8; /* 8-bit signed integer */ -typedef unsigned short signed16; /* 16-bit signed integer */ -typedef unsigned int signed32; /* 32-bit signed integer */ -typedef long long signed64; /* 64-bit signed integer */ - -typedef unsigned32 boolean; /* Boolean value */ - -typedef float single_precision; /* single precision float */ -typedef double double_precision; /* double precision float */ - -/* - * Structure which makes it easier to deal with LxDT and SxDT instructions. - */ - -typedef struct { - unsigned short limit; - unsigned short physical_address[ 2 ]; -} i386_DTR_load_save_format; - -/* See Chapter 5 - Memory Management in i386 manual */ - -typedef struct { - unsigned short limit_0_15; - unsigned short base_0_15; - unsigned char base_16_23; - unsigned char type_dt_dpl_p; - unsigned char limit_16_19_granularity; - unsigned char base_24_31; -} i386_GDT_slot; - -/* See Chapter 9 - Exceptions and Interrupts in i386 manual - * - * NOTE: This is the IDT entry for interrupt gates ONLY. - */ - -typedef struct { - unsigned short offset_0_15; - unsigned short segment_selector; - unsigned char reserved; - unsigned char p_dpl; - unsigned short offset_16_31; -} i386_IDT_slot; - -typedef void ( *i386_isr )( void ); - -#define i386_disable_interrupts( _level ) \ - { \ - _level = 0; /* avoids warnings */ \ - asm volatile ( "pushf ; \ - cli ; \ - pop %0" \ - : "=r" ((_level)) : "0" ((_level)) \ - ); \ - } - -#define i386_enable_interrupts( _level ) \ - { \ - asm volatile ( "push %0 ; \ - popf" \ - : "=r" ((_level)) : "0" ((_level)) \ - ); \ - } - -#define i386_flash_interrupts( _level ) \ - { \ - asm volatile ( "push %0 ; \ - popf ; \ - cli" \ - : "=r" ((_level)) : "0" ((_level)) \ - ); \ - } - -/* - * The following routine swaps the endian format of an unsigned int. - * It must be static so it can be referenced indirectly. - */ - -static inline unsigned int i386_swap_U32( - unsigned int value -) -{ - asm volatile( "rorw $8,%%ax;" - "rorl $16,%0;" - "rorw $8,%%ax" : "=a" (value) : "0" (value) ); - - return( value ); -} - -/* - * Segment Access Routines - * - * NOTE: Unfortunately, these are still static inlines even when the - * "macro" implementation of the generic code is used. - */ - -static inline unsigned short i386_get_cs() -{ - register unsigned short segment = 0; - - asm volatile ( "movw %%cs,%0" : "=r" (segment) : "0" (segment) ); - - return segment; -} - -static inline unsigned short i386_get_ds() -{ - register unsigned short segment = 0; - - asm volatile ( "movw %%ds,%0" : "=r" (segment) : "0" (segment) ); - - return segment; -} - -static inline unsigned short i386_get_es() -{ - register unsigned short segment = 0; - - asm volatile ( "movw %%es,%0" : "=r" (segment) : "0" (segment) ); - - return segment; -} - -static inline unsigned short i386_get_ss() -{ - register unsigned short segment = 0; - - asm volatile ( "movw %%ss,%0" : "=r" (segment) : "0" (segment) ); - - return segment; -} - -static inline unsigned short i386_get_fs() -{ - register unsigned short segment = 0; - - asm volatile ( "movw %%fs,%0" : "=r" (segment) : "0" (segment) ); - - return segment; -} - -static inline unsigned short i386_get_gs() -{ - register unsigned short segment = 0; - - asm volatile ( "movw %%gs,%0" : "=r" (segment) : "0" (segment) ); - - return segment; -} - -/* - * IO Port Access Routines - */ - -#define i386_outport_byte( _port, _value ) \ - { register unsigned short __port = _port; \ - register unsigned char __value = _value; \ - \ - asm volatile ( "outb %0,%1" : "=a" (__value), "=d" (__port) \ - : "0" (__value), "1" (__port) \ - ); \ - } - -#define i386_outport_word( _port, _value ) \ - { register unsigned short __port = _port; \ - register unsigned short __value = _value; \ - \ - asm volatile ( "outw %0,%1" : "=a" (__value), "=d" (__port) \ - : "0" (__value), "1" (__port) \ - ); \ - } - -#define i386_outport_long( _port, _value ) \ - { register unsigned short __port = _port; \ - register unsigned int __value = _value; \ - \ - asm volatile ( "outl %0,%1" : "=a" (__value), "=d" (__port) \ - : "0" (__value), "1" (__port) \ - ); \ - } - -#define i386_inport_byte( _port, _value ) \ - { register unsigned short __port = _port; \ - register unsigned char __value = 0; \ - \ - asm volatile ( "inb %1,%0" : "=a" (__value), "=d" (__port) \ - : "0" (__value), "1" (__port) \ - ); \ - _value = __value; \ - } - -#define i386_inport_word( _port, _value ) \ - { register unsigned short __port = _port; \ - register unsigned short __value = 0; \ - \ - asm volatile ( "inw %1,%0" : "=a" (__value), "=d" (__port) \ - : "0" (__value), "1" (__port) \ - ); \ - _value = __value; \ - } - -#define i386_inport_long( _port, _value ) \ - { register unsigned short __port = _port; \ - register unsigned int __value = 0; \ - \ - asm volatile ( "inl %1,%0" : "=a" (__value), "=d" (__port) \ - : "0" (__value), "1" (__port) \ - ); \ - _value = __value; \ - } - -/* - * Descriptor Table helper routines - */ - - -#define i386_get_GDTR( _gdtr_address ) \ - { \ - void *_gdtr = (_gdtr_address); \ - \ - asm volatile( "sgdt (%0)" : "=r" (_gdtr) : "0" (_gdtr) ); \ - } - -#define i386_get_GDT_slot( _gdtr_base, _segment, _slot_address ) \ - { \ - register unsigned int _gdt_slot = (_gdtr_base) + (_segment); \ - register volatile void *_slot = (_slot_address); \ - register unsigned int _temporary = 0; \ - \ - asm volatile( "movl %%gs:(%0),%1 ; \ - movl %1,(%2) ; \ - movl %%gs:4(%0),%1 ; \ - movl %1,4(%2)" \ - : "=r" (_gdt_slot), "=r" (_temporary), "=r" (_slot) \ - : "0" (_gdt_slot), "1" (_temporary), "2" (_slot) \ - ); \ - } - -#define i386_set_GDT_slot( _gdtr_base, _segment, _slot_address ) \ - { \ - register unsigned int _gdt_slot = (_gdtr_base) + (_segment); \ - register volatile void *_slot = (_slot_address); \ - register unsigned int _temporary = 0; \ - \ - asm volatile( "movl (%2),%1 ; \ - movl %1,%%gs:(%0) ; \ - movl 4(%2),%1 ; \ - movl %1,%%gs:4(%0) \ - " \ - : "=r" (_gdt_slot), "=r" (_temporary), "=r" (_slot) \ - : "0" (_gdt_slot), "1" (_temporary), "2" (_slot) \ - ); \ - } - -static inline void i386_set_segment( - unsigned short segment, - unsigned int base, - unsigned int limit -) -{ - i386_DTR_load_save_format gdtr; - volatile i386_GDT_slot Gdt_slot; - volatile i386_GDT_slot *gdt_slot = &Gdt_slot; - unsigned short tmp_segment = 0; - unsigned int limit_adjusted; - - /* load physical address of the GDT */ - - i386_get_GDTR( &gdtr ); - - gdt_slot->type_dt_dpl_p = 0x92; /* present, dpl=0, */ - /* application=1, */ - /* type=data read/write */ - gdt_slot->limit_16_19_granularity = 0x40; /* 32 bit segment */ - - limit_adjusted = limit; - if ( limit > 4095 ) { - gdt_slot->limit_16_19_granularity |= 0x80; /* set granularity bit */ - limit_adjusted /= 4096; - } - - gdt_slot->limit_16_19_granularity |= (limit_adjusted >> 16) & 0xff; - gdt_slot->limit_0_15 = limit_adjusted & 0xffff; - - gdt_slot->base_0_15 = base & 0xffff; - gdt_slot->base_16_23 = (base >> 16) & 0xff; - gdt_slot->base_24_31 = (base >> 24); - - i386_set_GDT_slot( - gdtr.physical_address[0] + (gdtr.physical_address[1] << 16), - segment, - gdt_slot - ); - - /* Now, reload all segment registers so the limit takes effect. */ - - asm volatile( "movw %%ds,%0 ; movw %0,%%ds - movw %%es,%0 ; movw %0,%%es - movw %%fs,%0 ; movw %0,%%fs - movw %%gs,%0 ; movw %0,%%gs - movw %%ss,%0 ; movw %0,%%ss" - : "=r" (tmp_segment) - : "0" (tmp_segment) - ); - -} - -/* routines */ - -/* - * i386_Logical_to_physical - * - * Converts logical address to physical address. - */ - -void *i386_Logical_to_physical( - unsigned short segment, - void *address -); - -/* - * i386_Physical_to_logical - * - * Converts physical address to logical address. - */ - -void *i386_Physical_to_logical( - unsigned short segment, - void *address -); - -/* - * i386_Install_idt - * - * This routine installs an IDT entry. - */ - -void i386_Install_idt( - unsigned int source_offset, - unsigned short destination_segment, - unsigned int destination_offset -); - -/* - * "Simpler" names for a lot of the things defined in this file - */ - -/* segment access routines */ - -#define get_cs() i386_get_cs() -#define get_ds() i386_get_ds() -#define get_es() i386_get_es() -#define get_ss() i386_get_ss() -#define get_fs() i386_get_fs() -#define get_gs() i386_get_gs() - -#define CPU_swap_u32( _value ) i386_swap_U32( _value ) - -/* i80x86 I/O instructions */ - -#define outport_byte( _port, _value ) i386_outport_byte( _port, _value ) -#define outport_word( _port, _value ) i386_outport_word( _port, _value ) -#define outport_long( _port, _value ) i386_outport_long( _port, _value ) -#define inport_byte( _port, _value ) i386_inport_byte( _port, _value ) -#define inport_word( _port, _value ) i386_inport_word( _port, _value ) -#define inport_long( _port, _value ) i386_inport_long( _port, _value ) - -/* complicated static inline functions */ - -#define get_GDTR( _gdtr_address ) \ - i386_get_GDTR( _gdtr_address ) - -#define get_GDT_slot( _gdtr_base, _segment, _slot_address ) \ - i386_get_GDT_slot( _gdtr_base, _segment, _slot_address ) - -#define set_GDT_slot( _gdtr_base, _segment, _slot_address ) \ - i386_set_GDT_slot( _gdtr_base, _segment, _slot_address ) - -#define set_segment( _segment, _base, _limit ) \ - i386_set_segment( _segment, _base, _limit ) - - -#ifdef __cplusplus -} -#endif - -#endif /* !ASM */ - -#endif -/* end of include file */ |