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800 palkovsky 1 
/*
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 * Copyright (C) 2001-2004 Jakub Jermar
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#ifndef __ia32_INTERRUPT_H__
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#define __ia32_INTERRUPT_H__
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#include <arch/types.h>
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#include <arch/pm.h>
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#define IVT_ITEMS       IDT_ITEMS
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#define EXC_COUNT   32
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#define IRQ_COUNT   16
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#define IVT_EXCBASE     0
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#define IVT_IRQBASE     (IVT_EXCBASE+EXC_COUNT)
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#define IVT_FREEBASE        (IVT_IRQBASE+IRQ_COUNT)
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#define IRQ_CLK     0
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#define IRQ_KBD     1
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#define IRQ_PIC1    2
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#define IRQ_PIC_SPUR    7
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/* this one must have four least significant bits set to ones */
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#define VECTOR_APIC_SPUR    (IVT_ITEMS-1)
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#if (((VECTOR_APIC_SPUR + 1)%16) || VECTOR_APIC_SPUR >= IVT_ITEMS)
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#error Wrong definition of VECTOR_APIC_SPUR
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#endif
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#define VECTOR_PIC_SPUR     (IVT_IRQBASE+IRQ_PIC_SPUR)
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#define VECTOR_CLK      (IVT_IRQBASE+IRQ_CLK)
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#define VECTOR_KBD      (IVT_IRQBASE+IRQ_KBD)
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#define VECTOR_TLB_SHOOTDOWN_IPI    (IVT_FREEBASE+0)
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#define VECTOR_WAKEUP_IPI       (IVT_FREEBASE+1)
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/** This is passed to interrupt handlers */
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struct istate {
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    __u64 rax;
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    __u64 rbx;
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    __u64 rcx;
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    __u64 rdx;
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    __u64 rsi;
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    __u64 rdi;
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    __u64 r8;
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    __u64 r9;
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    __u64 r10;
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    __u64 r11;
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    __u64 r12;
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    __u64 r13;
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    __u64 r14;
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    __u64 r15;
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    /* These 2 items MUST be last parts of the structure */
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    __u64 rbp;
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    __u64 stack[0]; /* Additional data on stack */
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} __attribute__ ((packed));
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extern void (* disable_irqs_function)(__u16 irqmask);
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extern void (* enable_irqs_function)(__u16 irqmask);
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extern void (* eoi_function)(void);
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extern void null_interrupt(int n, istate_t *istate);
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extern void gp_fault(int n, istate_t *istate);
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extern void nm_fault(int n, istate_t *istate);
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extern void ss_fault(int n, istate_t *istate);
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extern void page_fault(int n, istate_t *istate);
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extern void syscall(int n, istate_t *istate);
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extern void tlb_shootdown_ipi(int n, istate_t *istate);
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extern void trap_virtual_enable_irqs(__u16 irqmask);
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extern void trap_virtual_disable_irqs(__u16 irqmask);
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extern void trap_virtual_eoi(void);
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#endif