1 /* $OpenBSD: mmu.h,v 1.3 2022/02/21 12:16:55 jsg Exp $ */ 2 /* $NetBSD: mmu.h,v 1.9 2006/03/04 01:55:03 uwe Exp $ */ 3 4 /*- 5 * Copyright (c) 2002 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by UCHIYAMA Yasushi. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #ifndef _SH_MMU_H_ 34 #define _SH_MMU_H_ 35 36 /* 37 * Initialize routines. 38 * sh_mmu_init Assign function vector. Don't access hardware. 39 * Call as early as possible. 40 * sh_mmu_start Reset TLB entry, set default ASID, and start to 41 * translate addresses. 42 * Call after exception vector was installed. 43 * 44 * TLB access ops. 45 * sh_tlb_invalidate_addr invalidate TLB entries for given 46 * virtual addr with ASID. 47 * sh_tlb_invalidate_asid invalidate TLB entries for given ASID. 48 * sh_tlb_invalidate_all invalidate all non-wired TLB entries. 49 * sh_tlb_set_asid set ASID. 50 * sh_tlb_update load new PTE to TLB. 51 * 52 */ 53 54 void sh_mmu_init(void); 55 void sh_mmu_information(void); 56 void sh_tlb_set_asid(int); 57 58 #ifdef SH3 59 void sh3_mmu_start(void); 60 void sh3_tlb_invalidate_addr(int, vaddr_t); 61 void sh3_tlb_invalidate_asid(int); 62 void sh3_tlb_invalidate_all(void); 63 void sh3_tlb_update(int, vaddr_t, uint32_t); 64 #endif 65 66 #ifdef SH4 67 void sh4_mmu_start(void); 68 void sh4_tlb_invalidate_addr(int, vaddr_t); 69 void sh4_tlb_invalidate_asid(int); 70 void sh4_tlb_invalidate_all(void); 71 void sh4_tlb_update(int, vaddr_t, uint32_t); 72 #endif 73 74 75 #if defined(SH3) && defined(SH4) 76 extern uint32_t __sh_PTEH; 77 78 extern void (*__sh_mmu_start)(void); 79 extern void (*__sh_tlb_invalidate_addr)(int, vaddr_t); 80 extern void (*__sh_tlb_invalidate_asid)(int); 81 extern void (*__sh_tlb_invalidate_all)(void); 82 extern void (*__sh_tlb_update)(int, vaddr_t, uint32_t); 83 84 #define sh_mmu_start() (*__sh_mmu_start)() 85 #define sh_tlb_invalidate_addr(a, va) (*__sh_tlb_invalidate_addr)(a, va) 86 #define sh_tlb_invalidate_asid(a) (*__sh_tlb_invalidate_asid)(a) 87 #define sh_tlb_invalidate_all() (*__sh_tlb_invalidate_all)() 88 #define sh_tlb_update(a, va, pte) (*__sh_tlb_update)(a, va, pte) 89 90 #elif defined(SH3) 91 92 #define sh_mmu_start() sh3_mmu_start() 93 #define sh_tlb_invalidate_addr(a, va) sh3_tlb_invalidate_addr(a, va) 94 #define sh_tlb_invalidate_asid(a) sh3_tlb_invalidate_asid(a) 95 #define sh_tlb_invalidate_all() sh3_tlb_invalidate_all() 96 #define sh_tlb_update(a, va, pte) sh3_tlb_update(a, va, pte) 97 98 #elif defined(SH4) 99 100 #define sh_mmu_start() sh4_mmu_start() 101 #define sh_tlb_invalidate_addr(a, va) sh4_tlb_invalidate_addr(a, va) 102 #define sh_tlb_invalidate_asid(a) sh4_tlb_invalidate_asid(a) 103 #define sh_tlb_invalidate_all() sh4_tlb_invalidate_all() 104 #define sh_tlb_update(a, va, pte) sh4_tlb_update(a, va, pte) 105 106 #endif 107 108 #endif /* !_SH_MMU_H_ */ 109