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Ignore whitespace Rev 1967 → Rev 1968

/tags/0.1.1/kernel/arch/ia32/include/interrupt.h
0,0 → 1,108
/*
* 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.
*/
 
#ifndef __ia32_INTERRUPT_H__
#define __ia32_INTERRUPT_H__
 
#include <arch/types.h>
#include <arch/pm.h>
 
#define IVT_ITEMS IDT_ITEMS
 
#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
 
/* 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_PIC_SPUR (IVT_IRQBASE+IRQ_PIC_SPUR)
#define VECTOR_CLK (IVT_IRQBASE+IRQ_CLK)
#define VECTOR_KBD (IVT_IRQBASE+IRQ_KBD)
 
#define VECTOR_SYSCALL (IVT_FREEBASE+0)
#define VECTOR_TLB_SHOOTDOWN_IPI (IVT_FREEBASE+1)
#define VECTOR_DEBUG_IPI (IVT_FREEBASE+2)
 
struct istate {
__u32 eax;
__u32 ecx;
__u32 edx;
__u32 esi;
__u32 edi;
__u32 ebp;
__u32 ebx;
 
__u32 gs;
__u32 fs;
__u32 es;
__u32 ds;
 
__u32 error_word;
__u32 eip;
__u32 cs;
__u32 eflags;
__u32 stack[];
};
 
static inline void istate_set_retaddr(istate_t *istate, __address retaddr)
{
istate->eip = retaddr;
}
 
extern void (* disable_irqs_function)(__u16 irqmask);
extern void (* enable_irqs_function)(__u16 irqmask);
extern void (* eoi_function)(void);
 
extern void null_interrupt(int n, istate_t *istate);
extern void gp_fault(int n, istate_t *istate);
extern void nm_fault(int n, istate_t *istate);
extern void ss_fault(int n, istate_t *istate);
extern void simd_fp_exception(int n, istate_t *istate);
extern void page_fault(int n, istate_t *istate);
extern void syscall(int n, istate_t *istate);
extern void tlb_shootdown_ipi(int n, istate_t *istate);
 
extern void trap_virtual_enable_irqs(__u16 irqmask);
extern void trap_virtual_disable_irqs(__u16 irqmask);
extern void trap_virtual_eoi(void);
 
#endif