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226 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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#include <arch/interrupt.h>
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#include <print.h>
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#include <debug.h>
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#include <panic.h>
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#include <arch/i8259.h>
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#include <func.h>
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#include <cpu.h>
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#include <arch/asm.h>
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#include <mm/tlb.h>
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#include <mm/as.h>
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#include <arch.h>
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#include <symtab.h>
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#include <arch/asm.h>
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#include <proc/scheduler.h>
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#include <proc/thread.h>
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void print_info_errcode(int n, istate_t *istate)
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{
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    char *symbol;
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/*  __u64 *x = &istate->stack[0]; */
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    if (!(symbol=get_symtab_entry(istate->rip)))
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        symbol = "";
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    printf("-----EXCEPTION(%d) OCCURED----- ( %s )\n",n, __FUNCTION__);
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    printf("%%rip: %Q (%s)\n",istate->rip, symbol);
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    printf("ERROR_WORD=%Q\n", istate->error_word);
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    printf("%%rcs=%Q, flags=%Q, %%cr0=%Q\n", istate->cs, istate->rflags,read_cr0());
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    printf("%%rax=%Q, %%rcx=%Q, %%rdx=%Q\n",istate->rax,istate->rcx,istate->rdx);
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    printf("%%rsi=%Q, %%rdi=%Q, %%r8 =%Q\n",istate->rsi,istate->rdi,istate->r8);
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    printf("%%r9 =%Q, %%r10 =%Q, %%r11=%Q\n",istate->r9,istate->r10,istate->r11);
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#ifdef CONFIG_DEBUG_ALLREGS 
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    printf("%%r12=%Q, %%r13=%Q, %%r14=%Q\n",istate->r12,istate->r13,istate->r14);
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    printf("%%r15=%Q, %%rbx=%Q, %%rbp=%Q\n",istate->r15,istate->rbx,&istate->rbp);
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#endif
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    printf("%%rsp=%Q\n",&istate->stack[0]);
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}
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/*
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 * Interrupt and exception dispatching.
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 */
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void (* disable_irqs_function)(__u16 irqmask) = NULL;
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void (* enable_irqs_function)(__u16 irqmask) = NULL;
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void (* eoi_function)(void) = NULL;
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958 jermar 75
void null_interrupt(int n, istate_t *istate)
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{
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    print_info_errcode(n, istate);
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    panic("unserviced interrupt\n");
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}
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void gp_fault(int n, istate_t *istate)
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{
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    print_info_errcode(n, istate);
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    panic("general protection fault\n");
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}
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void ss_fault(int n, istate_t *istate)
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{
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    print_info_errcode(n, istate);
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    panic("stack fault\n");
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}
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958 jermar 93
void nm_fault(int n, istate_t *istate)
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{
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#ifdef CONFIG_FPU_LAZY     
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    scheduler_fpu_lazy_request();
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#else
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    panic("fpu fault");
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#endif
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}
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958 jermar 102
void tlb_shootdown_ipi(int n, istate_t *istate)
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{
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    trap_virtual_eoi();
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    tlb_shootdown_ipi_recv();
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}
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void trap_virtual_enable_irqs(__u16 irqmask)
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{
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    if (enable_irqs_function)
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        enable_irqs_function(irqmask);
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    else
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        panic("no enable_irqs_function\n");
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}
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void trap_virtual_disable_irqs(__u16 irqmask)
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{
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    if (disable_irqs_function)
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        disable_irqs_function(irqmask);
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    else
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        panic("no disable_irqs_function\n");
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}
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void trap_virtual_eoi(void)
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{
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    if (eoi_function)
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        eoi_function();
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    else
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        panic("no eoi_function\n");
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}