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mmu.h revision 1.3.2.3 
      1 /*	$NetBSD: mmu.h,v 1.3.2.3 2002/06/20 03:40:52 nathanw 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