60 lines
2.1 KiB
C
60 lines
2.1 KiB
C
/*-
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* Copyright (c) 2004-2010 Juli Mallett <jmallett@FreeBSD.org>
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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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* 1. 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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* 2. 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MACHINE_TLB_H_
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#define _MACHINE_TLB_H_
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/*
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* The first TLB entry that write random hits.
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* TLB entry 0 maps the kernel stack of the currently running thread
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* TLB entry 1 maps the pcpu area of processor (only for SMP builds)
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*/
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#define KSTACK_TLB_ENTRY 0
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#ifdef SMP
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#define PCPU_TLB_ENTRY 1
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#define VMWIRED_ENTRIES 2
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#else
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#define VMWIRED_ENTRIES 1
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#endif /* SMP */
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/*
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* The number of process id entries.
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*/
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#define VMNUM_PIDS 256
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extern int num_tlbentries;
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void tlb_insert_wired(unsigned, vm_offset_t, pt_entry_t, pt_entry_t);
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void tlb_invalidate_address(struct pmap *, vm_offset_t);
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void tlb_invalidate_all(void);
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void tlb_invalidate_all_user(struct pmap *);
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void tlb_save(void);
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void tlb_update(struct pmap *, vm_offset_t, pt_entry_t);
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#endif /* !_MACHINE_TLB_H_ */
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