/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2004-2010 Juli Mallett <jmallett@FreeBSD.org> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #ifndef _MACHINE_TLB_H_ #define _MACHINE_TLB_H_ /* * The first TLB entry that write random hits. * TLB entry 0 maps the kernel stack of the currently running thread * TLB entry 1 maps the pcpu area of processor (only for SMP builds) */ #define KSTACK_TLB_ENTRY 0 #ifdef SMP #define PCPU_TLB_ENTRY 1 #define VMWIRED_ENTRIES 2 #else #define VMWIRED_ENTRIES 1 #endif /* SMP */ /* * The number of process id entries. */ #define VMNUM_PIDS 256 extern int num_tlbentries; void tlb_insert_wired(unsigned, vm_offset_t, pt_entry_t, pt_entry_t); void tlb_invalidate_address(struct pmap *, vm_offset_t); void tlb_invalidate_all(void); void tlb_invalidate_all_user(struct pmap *); void tlb_invalidate_range(struct pmap *, vm_offset_t, vm_offset_t); void tlb_save(void); void tlb_update(struct pmap *, vm_offset_t, pt_entry_t); #endif /* !_MACHINE_TLB_H_ */ |