1 /* $NetBSD: tlb.h,v 1.5 2021/10/02 14:28:05 skrll Exp $ */ 2 /*- 3 * Copyright (c) 2011 The NetBSD Foundation, Inc. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to The NetBSD Foundation 7 * by Matt Thomas of 3am Software Foundry. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 #ifndef _UVM_PMAP_TLB_H_ 31 #define _UVM_PMAP_TLB_H_ 32 33 #if defined(_KERNEL) || defined(_KMEMUSER) 34 35 struct tlbmask; 36 struct pmap; 37 38 typedef bool (*tlb_walkfunc_t)(void *, vaddr_t, tlb_asid_t, pt_entry_t); 39 40 struct tlb_md_ops { 41 void (*md_tlb_set_asid)(tlb_asid_t); 42 tlb_asid_t 43 (*md_tlb_get_asid)(void); 44 void (*md_tlb_invalidate_all)(void); 45 void (*md_tlb_invalidate_globals)(void); 46 void (*md_tlb_invalidate_asids)(tlb_asid_t, tlb_asid_t); 47 void (*md_tlb_invalidate_addr)(vaddr_t, tlb_asid_t); 48 bool (*md_tlb_update_addr)(vaddr_t, tlb_asid_t, pt_entry_t, bool); 49 void (*md_tlb_read_entry)(size_t, struct tlbmask *); 50 void (*md_tlb_write_entry)(size_t, const struct tlbmask *); 51 u_int (*md_tlb_record_asids)(u_long *, tlb_asid_t); 52 void (*md_tlb_dump)(void (*)(const char *, ...)); 53 void (*md_tlb_walk)(void *, tlb_walkfunc_t); 54 }; 55 56 tlb_asid_t 57 tlb_get_asid(void); 58 void tlb_set_asid(tlb_asid_t, struct pmap *); 59 void tlb_invalidate_all(void); 60 void tlb_invalidate_globals(void); 61 void tlb_invalidate_asids(tlb_asid_t, tlb_asid_t); 62 void tlb_invalidate_addr(vaddr_t, tlb_asid_t); 63 bool tlb_update_addr(vaddr_t, tlb_asid_t, pt_entry_t, bool); 64 u_int tlb_record_asids(u_long *, tlb_asid_t); 65 void tlb_enter_addr(size_t, const struct tlbmask *); 66 void tlb_read_entry(size_t, struct tlbmask *); 67 void tlb_write_entry(size_t, const struct tlbmask *); 68 void tlb_walk(void *, tlb_walkfunc_t); 69 void tlb_dump(void (*)(const char *, ...)); 70 71 #endif /* _KERNEL || _KMEMUSER */ 72 73 #endif /* _UVM_PMAP_TLB_H_ */ 74