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#include <synch/mutex.h>
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#include <synch/mutex.h>
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#include <print.h>
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#include <print.h>
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#include <debug.h>
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#include <debug.h>
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#include <align.h>
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#include <align.h>
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#include <interrupt.h>
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#include <interrupt.h>
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#ifdef CONFIG_SYMTAB
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#include <symtab.h>
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#include <symtab.h>
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#endif
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static void tlb_refill_fail(istate_t *);
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static void tlb_refill_fail(istate_t *);
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static void tlb_invalid_fail(istate_t *);
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static void tlb_invalid_fail(istate_t *);
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static void tlb_modified_fail(istate_t *);
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static void tlb_modified_fail(istate_t *);
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    tlb_modified_fail(istate);
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    tlb_modified_fail(istate);
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}
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}
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void tlb_refill_fail(istate_t *istate)
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void tlb_refill_fail(istate_t *istate)
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{
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{
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    char *symbol = "";
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    char *symbol, *sym2;
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    char *sym2 = "";
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#ifdef CONFIG_SYMTAB
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    char *s = get_symtab_entry(istate->epc);
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    if (s)
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        symbol = s;
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    s = get_symtab_entry(istate->ra);
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    if (s)
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        sym2 = s;
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#endif
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    symbol = symtab_fmt_name_lookup(istate->epc);
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    sym2 = symtab_fmt_name_lookup(istate->ra);
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    fault_if_from_uspace(istate, "TLB Refill Exception on %p.",
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    fault_if_from_uspace(istate, "TLB Refill Exception on %p.",
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        cp0_badvaddr_read());
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        cp0_badvaddr_read());
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    panic("%x: TLB Refill Exception at %x(%s<-%s).", cp0_badvaddr_read(),
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    panic("%x: TLB Refill Exception at %x (%s<-%s).", cp0_badvaddr_read(),
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        istate->epc, symbol, sym2);
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        istate->epc, symbol, sym2);
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}
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}
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void tlb_invalid_fail(istate_t *istate)
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void tlb_invalid_fail(istate_t *istate)
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{
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{
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    char *symbol = "";
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    char *symbol;
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#ifdef CONFIG_SYMTAB
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    char *s = get_symtab_entry(istate->epc);
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    symbol = symtab_fmt_name_lookup(istate->epc);
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    if (s)
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        symbol = s;
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#endif
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    fault_if_from_uspace(istate, "TLB Invalid Exception on %p.",
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    fault_if_from_uspace(istate, "TLB Invalid Exception on %p.",
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        cp0_badvaddr_read());
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        cp0_badvaddr_read());
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    panic("%x: TLB Invalid Exception at %x(%s).", cp0_badvaddr_read(),
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    panic("%x: TLB Invalid Exception at %x (%s).", cp0_badvaddr_read(),
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        istate->epc, symbol);
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        istate->epc, symbol);
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}
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}
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void tlb_modified_fail(istate_t *istate)
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void tlb_modified_fail(istate_t *istate)
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{
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{
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    char *symbol = "";
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    char *symbol;
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#ifdef CONFIG_SYMTAB
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    char *s = get_symtab_entry(istate->epc);
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    symbol = symtab_fmt_name_lookup(istate->epc);
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    if (s)
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        symbol = s;
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#endif
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    fault_if_from_uspace(istate, "TLB Modified Exception on %p.",
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    fault_if_from_uspace(istate, "TLB Modified Exception on %p.",
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        cp0_badvaddr_read());
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        cp0_badvaddr_read());
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    panic("%x: TLB Modified Exception at %x(%s).", cp0_badvaddr_read(),
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    panic("%x: TLB Modified Exception at %x (%s).", cp0_badvaddr_read(),
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        istate->epc, symbol);
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        istate->epc, symbol);
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}
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}
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/** Try to find PTE for faulting address.
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/** Try to find PTE for faulting address.
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 *
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 *