1 /* $NetBSD: mmu.h,v 1.5 2002/05/09 12:27:04 uch 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 possible as first. 46 * sh_mmu_start Reset TLB entry, set default ASID, and start to 47 * translate address. 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 63 extern void (*__sh_mmu_start)(void); 64 void sh3_mmu_start(void); 65 void sh4_mmu_start(void); 66 #define sh_mmu_start() (*__sh_mmu_start)() 67 68 /* 69 * TLB access ops. 70 */ 71 extern void (*__sh_tlb_invalidate_addr)(int, vaddr_t); 72 extern void (*__sh_tlb_invalidate_asid)(int); 73 extern void (*__sh_tlb_invalidate_all)(void); 74 extern void (*__sh_tlb_update)(int, vaddr_t, u_int32_t); 75 void sh_tlb_set_asid(int); 76 void sh3_tlb_invalidate_addr(int, vaddr_t); 77 void sh3_tlb_invalidate_asid(int); 78 void sh3_tlb_invalidate_all(void); 79 void sh3_tlb_update(int, vaddr_t, u_int32_t); 80 void sh4_tlb_invalidate_addr(int, vaddr_t); 81 void sh4_tlb_invalidate_asid(int); 82 void sh4_tlb_invalidate_all(void); 83 void sh4_tlb_update(int, vaddr_t, u_int32_t); 84 85 #if defined(SH3) && defined(SH4) 86 #define sh_tlb_invalidate_addr(a, va) (*__sh_tlb_invalidate_addr)(a, va) 87 #define sh_tlb_invalidate_asid(a) (*__sh_tlb_invalidate_asid)(a) 88 #define sh_tlb_invalidate_all() (*__sh_tlb_invalidate_all)() 89 #define sh_tlb_update(a, pte) (*__sh_tlb_update)(a, pte) 90 #elif defined(SH3) 91 #define sh_tlb_invalidate_addr(a, va) sh3_tlb_invalidate_addr(a, va) 92 #define sh_tlb_invalidate_asid(a) sh3_tlb_invalidate_asid(a) 93 #define sh_tlb_invalidate_all() sh3_tlb_invalidate_all() 94 #define sh_tlb_update(a, va, pte) sh3_tlb_update(a, va, pte) 95 #elif defined(SH4) 96 #define sh_tlb_invalidate_addr(a, va) sh4_tlb_invalidate_addr(a, va) 97 #define sh_tlb_invalidate_asid(a) sh4_tlb_invalidate_asid(a) 98 #define sh_tlb_invalidate_all() sh4_tlb_invalidate_all() 99 #define sh_tlb_update(a, va, pte) sh4_tlb_update(a, va, pte) 100 #endif 101 102 #endif /* !_SH3_MMU_H_ */ 103