| 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 |
| |
| /** @} |
| */ |