1 /* $NetBSD: mmu.h,v 1.9 2006/03/04 01:55:03 uwe Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _SH3_MMU_H_ 40 #define _SH3_MMU_H_ 41 42 /* 43 * Initialize routines. 44 * sh_mmu_init Assign function vector. Don't access hardware. 45 * Call as early as possible. 46 * sh_mmu_start Reset TLB entry, set default ASID, and start to 47 * translate addresses. 48 * Call after exception vector was installed. 49 * 50 * TLB access ops. 51 * sh_tlb_invalidate_addr invalidate TLB entris for given 52 * virtual addr with ASID. 53 * sh_tlb_invalidate_asid invalidate TLB entries for given ASID. 54 * sh_tlb_invalidate_all invalidate all non-wired TLB entries. 55 * sh_tlb_set_asid set ASID. 56 * sh_tlb_update load new PTE to TLB. 57 * 58 */ 59 60 void sh_mmu_init(void); 61 void sh_mmu_information(void); 62 void sh_tlb_set_asid(int); 63 64 #ifdef SH3 65 void sh3_mmu_start(void); 66 void sh3_tlb_invalidate_addr(int, vaddr_t); 67 void sh3_tlb_invalidate_asid(int); 68 void sh3_tlb_invalidate_all(void); 69 void sh3_tlb_update(int, vaddr_t, uint32_t); 70 #endif 71 72 #ifdef SH4 73 void sh4_mmu_start(void); 74 void sh4_tlb_invalidate_addr(int, vaddr_t); 75 void sh4_tlb_invalidate_asid(int); 76 void sh4_tlb_invalidate_all(void); 77 void sh4_tlb_update(int, vaddr_t, uint32_t); 78 #endif 79 80 81 #if defined(SH3) && defined(SH4) 82 extern uint32_t __sh_PTEH; 83 84 extern void (*__sh_mmu_start)(void); 85 extern void (*__sh_tlb_invalidate_addr)(int, vaddr_t); 86 extern void (*__sh_tlb_invalidate_asid)(int); 87 extern void (*__sh_tlb_invalidate_all)(void); 88 extern void (*__sh_tlb_update)(int, vaddr_t, uint32_t); 89 90 #define sh_mmu_start() (*__sh_mmu_start)() 91 #define sh_tlb_invalidate_addr(a, va) (*__sh_tlb_invalidate_addr)(a, va) 92 #define sh_tlb_invalidate_asid(a) (*__sh_tlb_invalidate_asid)(a) 93 #define sh_tlb_invalidate_all() (*__sh_tlb_invalidate_all)() 94 #define sh_tlb_update(a, va, pte) (*__sh_tlb_update)(a, va, pte) 95 96 #elif defined(SH3) 97 98 #define sh_mmu_start() sh3_mmu_start() 99 #define sh_tlb_invalidate_addr(a, va) sh3_tlb_invalidate_addr(a, va) 100 #define sh_tlb_invalidate_asid(a) sh3_tlb_invalidate_asid(a) 101 #define sh_tlb_invalidate_all() sh3_tlb_invalidate_all() 102 #define sh_tlb_update(a, va, pte) sh3_tlb_update(a, va, pte) 103 104 #elif defined(SH4) 105 106 #define sh_mmu_start() sh4_mmu_start() 107 #define sh_tlb_invalidate_addr(a, va) sh4_tlb_invalidate_addr(a, va) 108 #define sh_tlb_invalidate_asid(a) sh4_tlb_invalidate_asid(a) 109 #define sh_tlb_invalidate_all() sh4_tlb_invalidate_all() 110 #define sh_tlb_update(a, va, pte) sh4_tlb_update(a, va, pte) 111 112 #endif 113 114 #endif /* !_SH3_MMU_H_ */ 115