| 1 | /*
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| 2 | * Copyright (C) 2003-2004 Jakub Jermar
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | #include <arch/mm/tlb.h>
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| 30 | #include <arch/mm/asid.h>
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| 31 | #include <mm/tlb.h>
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| 32 | #include <arch/cp0.h>
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| 33 | #include <panic.h>
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| 34 | #include <arch.h>
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| 35 |
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| 36 | #include <symtab.h>
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| 37 |
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| 38 | void tlb_refill(struct exception_regdump *pstate)
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| 39 | {
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| 40 | char *symbol = "";
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| 41 | char *sym2 = "";
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| 42 |
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| 43 | if (THREAD) {
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| 44 | char *s = get_symtab_entry(pstate->epc);
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| 45 | if (s)
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| 46 | symbol = s;
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| 47 | s = get_symtab_entry(pstate->ra);
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| 48 | if (s)
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| 49 | sym2 = s;
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| 50 | }
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| 51 | panic("%X: tlb_refill exception at %X(%s<-%s)\n", cp0_badvaddr_read(),
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| 52 | pstate->epc, symbol,sym2);
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| 53 | }
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| 54 |
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| 55 | void tlb_invalid(struct exception_regdump *pstate)
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| 56 | {
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| 57 | char *symbol = "";
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| 58 |
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| 59 | if (THREAD) {
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| 60 | char *s = get_symtab_entry(pstate->epc);
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| 61 | if (s)
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| 62 | symbol = s;
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| 63 | }
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| 64 | panic("%X: TLB exception at %X(%s)\n", cp0_badvaddr_read(),
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| 65 | pstate->epc, symbol);
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| 66 | }
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| 67 |
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| 68 | void tlb_invalidate(int asid)
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| 69 | {
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| 70 | pri_t pri;
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| 71 |
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| 72 | pri = cpu_priority_high();
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| 73 |
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| 74 | // asid_bitmap_reset();
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| 75 |
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| 76 | // TODO
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| 77 |
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| 78 | cpu_priority_restore(pri);
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| 79 | }
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