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Annotation of sys/arch/sh/include/mmu.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: mmu.h,v 1.1.1.1 2006/10/06 21:02:55 miod 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:  * 3. All advertising materials mentioning features or use of this software
                     20:  *    must display the following acknowledgement:
                     21:  *        This product includes software developed by the NetBSD
                     22:  *        Foundation, Inc. and its contributors.
                     23:  * 4. Neither the name of The NetBSD Foundation nor the names of its
                     24:  *    contributors may be used to endorse or promote products derived
                     25:  *    from this software without specific prior written permission.
                     26:  *
                     27:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     28:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     29:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     30:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     31:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     32:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     33:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     34:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     35:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     36:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     37:  * POSSIBILITY OF SUCH DAMAGE.
                     38:  */
                     39:
                     40: #ifndef _SH_MMU_H_
                     41: #define        _SH_MMU_H_
                     42:
                     43: /*
                     44:  * Initialize routines.
                     45:  *     sh_mmu_init             Assign function vector. Don't access hardware.
                     46:  *                             Call as early as possible.
                     47:  *     sh_mmu_start            Reset TLB entry, set default ASID, and start to
                     48:  *                             translate addresses.
                     49:  *                             Call after exception vector was installed.
                     50:  *
                     51:  * TLB access ops.
                     52:  *     sh_tlb_invalidate_addr  invalidate TLB entris for given
                     53:  *                             virtual addr with ASID.
                     54:  *     sh_tlb_invalidate_asid  invalidate TLB entries for given ASID.
                     55:  *     sh_tlb_invalidate_all   invalidate all non-wired TLB entries.
                     56:  *     sh_tlb_set_asid         set ASID.
                     57:  *     sh_tlb_update           load new PTE to TLB.
                     58:  *
                     59:  */
                     60:
                     61: void sh_mmu_init(void);
                     62: void sh_mmu_information(void);
                     63: void sh_tlb_set_asid(int);
                     64:
                     65: #ifdef SH3
                     66: void sh3_mmu_start(void);
                     67: void sh3_tlb_invalidate_addr(int, vaddr_t);
                     68: void sh3_tlb_invalidate_asid(int);
                     69: void sh3_tlb_invalidate_all(void);
                     70: void sh3_tlb_update(int, vaddr_t, uint32_t);
                     71: #endif
                     72:
                     73: #ifdef SH4
                     74: void sh4_mmu_start(void);
                     75: void sh4_tlb_invalidate_addr(int, vaddr_t);
                     76: void sh4_tlb_invalidate_asid(int);
                     77: void sh4_tlb_invalidate_all(void);
                     78: void sh4_tlb_update(int, vaddr_t, uint32_t);
                     79: #endif
                     80:
                     81:
                     82: #if defined(SH3) && defined(SH4)
                     83: extern uint32_t __sh_PTEH;
                     84:
                     85: extern void (*__sh_mmu_start)(void);
                     86: extern void (*__sh_tlb_invalidate_addr)(int, vaddr_t);
                     87: extern void (*__sh_tlb_invalidate_asid)(int);
                     88: extern void (*__sh_tlb_invalidate_all)(void);
                     89: extern void (*__sh_tlb_update)(int, vaddr_t, uint32_t);
                     90:
                     91: #define        sh_mmu_start()                  (*__sh_mmu_start)()
                     92: #define        sh_tlb_invalidate_addr(a, va)   (*__sh_tlb_invalidate_addr)(a, va)
                     93: #define        sh_tlb_invalidate_asid(a)       (*__sh_tlb_invalidate_asid)(a)
                     94: #define        sh_tlb_invalidate_all()         (*__sh_tlb_invalidate_all)()
                     95: #define        sh_tlb_update(a, va, pte)       (*__sh_tlb_update)(a, va, pte)
                     96:
                     97: #elif defined(SH3)
                     98:
                     99: #define        sh_mmu_start()                  sh3_mmu_start()
                    100: #define        sh_tlb_invalidate_addr(a, va)   sh3_tlb_invalidate_addr(a, va)
                    101: #define        sh_tlb_invalidate_asid(a)       sh3_tlb_invalidate_asid(a)
                    102: #define        sh_tlb_invalidate_all()         sh3_tlb_invalidate_all()
                    103: #define        sh_tlb_update(a, va, pte)       sh3_tlb_update(a, va, pte)
                    104:
                    105: #elif defined(SH4)
                    106:
                    107: #define        sh_mmu_start()                  sh4_mmu_start()
                    108: #define        sh_tlb_invalidate_addr(a, va)   sh4_tlb_invalidate_addr(a, va)
                    109: #define        sh_tlb_invalidate_asid(a)       sh4_tlb_invalidate_asid(a)
                    110: #define        sh_tlb_invalidate_all()         sh4_tlb_invalidate_all()
                    111: #define        sh_tlb_update(a, va, pte)       sh4_tlb_update(a, va, pte)
                    112:
                    113: #endif
                    114:
                    115: #endif /* !_SH_MMU_H_ */