sys/arch/sh3/include/mmu.h

   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  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #ifndef _SH3_MMU_H_
  33 #define _SH3_MMU_H_
  34
  35 /*
  36  * Initialize routines.
  37  *      sh_mmu_init             Assign function vector. Don't access hardware.
  38  *                              Call as early as possible.
  39  *      sh_mmu_start            Reset TLB entry, set default ASID, and start to
  40  *                              translate addresses.
  41  *                              Call after exception vector was installed.
  42  *
  43  * TLB access ops.
  44  *      sh_tlb_invalidate_addr  invalidate TLB entris for given
  45  *                              virtual addr with ASID.
  46  *      sh_tlb_invalidate_asid  invalidate TLB entries for given ASID.
  47  *      sh_tlb_invalidate_all   invalidate all non-wired TLB entries.
  48  *      sh_tlb_set_asid         set ASID.
  49  *      sh_tlb_update           load new PTE to TLB.
  50  *
  51  */
  52
  53 void sh_mmu_init(void);
  54 void sh_mmu_information(void);
  55 void sh_tlb_set_asid(int);
  56
  57 #ifdef SH3
  58 void sh3_mmu_start(void);
  59 void sh3_tlb_invalidate_addr(int, vaddr_t);
  60 void sh3_tlb_invalidate_asid(int);
  61 void sh3_tlb_invalidate_all(void);
  62 void sh3_tlb_update(int, vaddr_t, uint32_t);
  63 #endif
  64
  65 #ifdef SH4
  66 void sh4_mmu_start(void);
  67 void sh4_tlb_invalidate_addr(int, vaddr_t);
  68 void sh4_tlb_invalidate_asid(int);
  69 void sh4_tlb_invalidate_all(void);
  70 void sh4_tlb_update(int, vaddr_t, uint32_t);
  71 #endif
  72
  73
  74 #if defined(SH3) && defined(SH4)
  75 extern uint32_t __sh_PTEH;
  76
  77 extern void (*__sh_mmu_start)(void);
  78 extern void (*__sh_tlb_invalidate_addr)(int, vaddr_t);
  79 extern void (*__sh_tlb_invalidate_asid)(int);
  80 extern void (*__sh_tlb_invalidate_all)(void);
  81 extern void (*__sh_tlb_update)(int, vaddr_t, uint32_t);
  82
  83 #define sh_mmu_start()                  (*__sh_mmu_start)()
  84 #define sh_tlb_invalidate_addr(a, va)   (*__sh_tlb_invalidate_addr)(a, va)
  85 #define sh_tlb_invalidate_asid(a)       (*__sh_tlb_invalidate_asid)(a)
  86 #define sh_tlb_invalidate_all()         (*__sh_tlb_invalidate_all)()
  87 #define sh_tlb_update(a, va, pte)       (*__sh_tlb_update)(a, va, pte)
  88
  89 #elif defined(SH3)
  90
  91 #define sh_mmu_start()                  sh3_mmu_start()
  92 #define sh_tlb_invalidate_addr(a, va)   sh3_tlb_invalidate_addr(a, va)
  93 #define sh_tlb_invalidate_asid(a)       sh3_tlb_invalidate_asid(a)
  94 #define sh_tlb_invalidate_all()         sh3_tlb_invalidate_all()
  95 #define sh_tlb_update(a, va, pte)       sh3_tlb_update(a, va, pte)
  96
  97 #elif defined(SH4)
  98
  99 #define sh_mmu_start()                  sh4_mmu_start()
 100 #define sh_tlb_invalidate_addr(a, va)   sh4_tlb_invalidate_addr(a, va)
 101 #define sh_tlb_invalidate_asid(a)       sh4_tlb_invalidate_asid(a)
 102 #define sh_tlb_invalidate_all()         sh4_tlb_invalidate_all()
 103 #define sh_tlb_update(a, va, pte)       sh4_tlb_update(a, va, pte)
 104
 105 #endif
 106
 107 #endif /* !_SH3_MMU_H_ */