0,0 → 1,120 |
/* |
* Copyright (c) 2001-2004 Jakub Jermar |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
|
/** @addtogroup ia32interrupt |
* @{ |
*/ |
/** @file |
*/ |
|
#ifndef KERN_ia32_INTERRUPT_H_ |
#define KERN_ia32_INTERRUPT_H_ |
|
#include <arch/types.h> |
#include <arch/pm.h> |
|
#define IVT_ITEMS IDT_ITEMS |
#define IVT_FIRST 0 |
|
#define EXC_COUNT 32 |
#define IRQ_COUNT 16 |
|
#define IVT_EXCBASE 0 |
#define IVT_IRQBASE (IVT_EXCBASE + EXC_COUNT) |
#define IVT_FREEBASE (IVT_IRQBASE + IRQ_COUNT) |
|
#define IRQ_CLK 0 |
#define IRQ_KBD 1 |
#define IRQ_PIC1 2 |
#define IRQ_PIC_SPUR 7 |
#define IRQ_MOUSE 12 |
|
/* this one must have four least significant bits set to ones */ |
#define VECTOR_APIC_SPUR (IVT_ITEMS - 1) |
|
#if (((VECTOR_APIC_SPUR + 1) % 16) || VECTOR_APIC_SPUR >= IVT_ITEMS) |
#error Wrong definition of VECTOR_APIC_SPUR |
#endif |
|
#define VECTOR_DEBUG 1 |
#define VECTOR_CLK (IVT_IRQBASE + IRQ_CLK) |
#define VECTOR_PIC_SPUR (IVT_IRQBASE + IRQ_PIC_SPUR) |
#define VECTOR_SYSCALL IVT_FREEBASE |
#define VECTOR_TLB_SHOOTDOWN_IPI (IVT_FREEBASE + 1) |
#define VECTOR_DEBUG_IPI (IVT_FREEBASE + 2) |
|
typedef struct { |
uint32_t eax; |
uint32_t ecx; |
uint32_t edx; |
uint32_t esi; |
uint32_t edi; |
uint32_t ebp; |
uint32_t ebx; |
|
uint32_t gs; |
uint32_t fs; |
uint32_t es; |
uint32_t ds; |
|
uint32_t error_word; |
uint32_t eip; |
uint32_t cs; |
uint32_t eflags; |
uint32_t stack[]; |
} istate_t; |
|
/** Return true if exception happened while in userspace */ |
static inline int istate_from_uspace(istate_t *istate) |
{ |
return !(istate->eip & 0x80000000); |
} |
|
static inline void istate_set_retaddr(istate_t *istate, uintptr_t retaddr) |
{ |
istate->eip = retaddr; |
} |
|
static inline unative_t istate_get_pc(istate_t *istate) |
{ |
return istate->eip; |
} |
|
extern void (* disable_irqs_function)(uint16_t irqmask); |
extern void (* enable_irqs_function)(uint16_t irqmask); |
extern void (* eoi_function)(void); |
|
extern void decode_istate(istate_t *istate); |
extern void interrupt_init(void); |
extern void trap_virtual_enable_irqs(uint16_t irqmask); |
extern void trap_virtual_disable_irqs(uint16_t irqmask); |
|
#endif |
|
/** @} |
*/ |