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667 jermar 1 
/*
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 * Copyright (C) 2005 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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1703 jermar 29 
/** @addtogroup sparc64interrupt
1702 cejka 30 
 * @{
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 */
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/** @file
1703 jermar 33 
 *
1702 cejka 34 
 */
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667 jermar 36 
#include <arch/trap/exception.h>
1861 jermar 37 
#include <arch/interrupt.h>
1870 jermar 38 
#include <interrupt.h>
883 jermar 39 
#include <arch/asm.h>
1882 jermar 40 
#include <arch/register.h>
667 jermar 41 
#include <debug.h>
1861 jermar 42 
#include <typedefs.h>
1880 jermar 43 
#include <symtab.h>
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#include <print.h>
667 jermar 45 
 
1880 jermar 46 
void dump_istate(istate_t *istate)
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{
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    printf("TSTATE=%#llx\n", istate->tstate);
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    printf("TPC=%#llx (%s)\n", istate->tpc, get_symtab_entry(istate->tpc));
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    printf("TNPC=%#llx (%s)\n", istate->tnpc, get_symtab_entry(istate->tnpc));
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}
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1870 jermar 53 
/** Handle instruction_access_exception. (0x8) */
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void instruction_access_exception(int n, istate_t *istate)
667 jermar 55 
{
1870 jermar 56 
    fault_if_from_uspace(istate, "%s\n", __FUNCTION__);
1880 jermar 57 
    dump_istate(istate);
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    panic("%s\n", __FUNCTION__);
667 jermar 59 
}
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1870 jermar 61 
/** Handle instruction_access_error. (0xa) */
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void instruction_access_error(int n, istate_t *istate)
667 jermar 63 
{
1870 jermar 64 
    fault_if_from_uspace(istate, "%s\n", __FUNCTION__);
1880 jermar 65 
    dump_istate(istate);
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    panic("%s\n", __FUNCTION__);
667 jermar 67 
}
883 jermar 68 
 
1870 jermar 69 
/** Handle illegal_instruction. (0x10) */
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void illegal_instruction(int n, istate_t *istate)
897 jermar 71 
{
1870 jermar 72 
    fault_if_from_uspace(istate, "%s\n", __FUNCTION__);
1880 jermar 73 
    dump_istate(istate);
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    panic("%s\n", __FUNCTION__);
897 jermar 75 
}
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1870 jermar 77 
/** Handle privileged_opcode. (0x11) */
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void privileged_opcode(int n, istate_t *istate)
883 jermar 79 
{
1870 jermar 80 
    fault_if_from_uspace(istate, "%s\n", __FUNCTION__);
1880 jermar 81 
    dump_istate(istate);
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    panic("%s\n", __FUNCTION__);
883 jermar 83 
}
1702 cejka 84 
 
1882 jermar 85 
/** Handle fp_disabled. (0x20) */
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void fp_disabled(int n, istate_t *istate)
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{
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    fprs_reg_t fprs;
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    fprs.value = fprs_read();
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    if (!fprs.fef) {
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        fprs.fef = true;
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        fprs_write(fprs.value);
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        return;
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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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    fault_if_from_uspace(istate, "%s\n", __FUNCTION__);
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    dump_istate(istate);
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    panic("%s\n", __FUNCTION__);
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#endif
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}
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1870 jermar 106 
/** Handle division_by_zero. (0x28) */
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void division_by_zero(int n, istate_t *istate)
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{
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    fault_if_from_uspace(istate, "%s\n", __FUNCTION__);
1880 jermar 110 
    dump_istate(istate);
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    panic("%s\n", __FUNCTION__);
1870 jermar 112 
}
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/** Handle data_access_exception. (0x30) */
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void data_access_exception(int n, istate_t *istate)
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{
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    fault_if_from_uspace(istate, "%s\n", __FUNCTION__);
1880 jermar 118 
    dump_istate(istate);
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    panic("%s\n", __FUNCTION__);
1870 jermar 120 
}
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/** Handle data_access_error. (0x32) */
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void data_access_error(int n, istate_t *istate)
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{
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    fault_if_from_uspace(istate, "%s\n", __FUNCTION__);
1880 jermar 126 
    dump_istate(istate);
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    panic("%s\n", __FUNCTION__);
1870 jermar 128 
}
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/** Handle mem_address_not_aligned. (0x34) */
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void mem_address_not_aligned(int n, istate_t *istate)
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{
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    fault_if_from_uspace(istate, "%s\n", __FUNCTION__);
1880 jermar 134 
    dump_istate(istate);
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    panic("%s\n", __FUNCTION__);
1870 jermar 136 
}
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/** Handle privileged_action. (0x37) */
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void privileged_action(int n, istate_t *istate)
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{
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    fault_if_from_uspace(istate, "%s\n", __FUNCTION__);
1880 jermar 142 
    dump_istate(istate);
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    panic("%s\n", __FUNCTION__);
1870 jermar 144 
}
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1703 jermar 146 
/** @}
1702 cejka 147 
 */