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/*
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/*
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 * Copyright (C) 2003-2004 Jakub Jermar
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 * Copyright (C) 2003-2004 Jakub Jermar
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 * All rights reserved.
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 * All rights reserved.
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 *
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 *
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 * Redistribution and use in source and binary forms, with or without
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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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 * modification, are permitted provided that the following conditions
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 * are met:
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 * are met:
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 *
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 *
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 * - Redistributions of source code must retain the above copyright
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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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 *   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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 * - 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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 *   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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 *   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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 * - 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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 *   derived from this software without specific prior written permission.
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 *
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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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 * 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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 * 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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 * 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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 * 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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 * 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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 * 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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 * 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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 * 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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 * (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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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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 */
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#include <arch/mm/tlb.h>
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#include <arch/mm/tlb.h>
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#include <arch/mm/asid.h>
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#include <arch/mm/asid.h>
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#include <mm/tlb.h>
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#include <mm/tlb.h>
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#include <arch/cp0.h>
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#include <arch/cp0.h>
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#include <panic.h>
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#include <panic.h>
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#include <arch.h>
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#include <arch.h>
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 - 
 
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#include <symtab.h>
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#include <symtab.h>
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void tlb_init_arch(void)
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{
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    int i;
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    cp0_pagemask_write(TLB_PAGE_MASK_16K);
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    cp0_entry_hi_write(0);
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    cp0_entry_lo0_write(0);
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    cp0_entry_lo1_write(0);
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    /*
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     * Invalidate all entries.
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     */
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    for (i = 0; i < TLB_SIZE; i++) {
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        cp0_index_write(0);
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        tlbwi();
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    }
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    /*
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     * The kernel is going to make use of some wired
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     * entries (e.g. mapping kernel stacks).
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     */
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    cp0_wired_write(TLB_WIRED);
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}
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void tlb_refill(struct exception_regdump *pstate)
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void tlb_refill(struct exception_regdump *pstate)
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{
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{
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    char *symbol = "";
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    char *symbol = "";
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    char *sym2 = "";
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    char *sym2 = "";
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    char *s = get_symtab_entry(pstate->epc);
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    char *s = get_symtab_entry(pstate->epc);
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    if (s)
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    if (s)
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        symbol = s;
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        symbol = s;
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    s = get_symtab_entry(pstate->ra);
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    s = get_symtab_entry(pstate->ra);
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    if (s)
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    if (s)
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        sym2 = s;
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        sym2 = s;
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    panic("%X: tlb_refill exception at %X(%s<-%s)\n", cp0_badvaddr_read(),
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    panic("%X: TLB Refill Exception at %X(%s<-%s)\n", cp0_badvaddr_read(),
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          pstate->epc, symbol,sym2);
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          pstate->epc, symbol, sym2);
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}
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}
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void tlb_invalid(struct exception_regdump *pstate)
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void tlb_invalid(struct exception_regdump *pstate)
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{
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{
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    char *symbol = "";
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    char *symbol = "";
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    char *s = get_symtab_entry(pstate->epc);
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    char *s = get_symtab_entry(pstate->epc);
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    if (s)
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    if (s)
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        symbol = s;
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        symbol = s;
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    panic("%X: TLB exception at %X(%s)\n", cp0_badvaddr_read(),
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    panic("%X: TLB Invalid Exception at %X(%s)\n", cp0_badvaddr_read(),
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          pstate->epc, symbol);
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          pstate->epc, symbol);
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}
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}
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void tlb_modified(struct exception_regdump *pstate)
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{
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    char *symbol = "";
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    char *s = get_symtab_entry(pstate->epc);
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    if (s)
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        symbol = s;
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    panic("%X: TLB Modified Exception at %X(%s)\n", cp0_badvaddr_read(),
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          pstate->epc, symbol);
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}
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void tlb_invalidate(int asid)
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void tlb_invalidate(int asid)
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{
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{
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    pri_t pri;
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    pri_t pri;
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    pri = cpu_priority_high();
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    pri = cpu_priority_high();
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//  asid_bitmap_reset();
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//  asid_bitmap_reset();
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    // TODO
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    // TODO
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    cpu_priority_restore(pri);
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    cpu_priority_restore(pri);
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}
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}
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