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/* $OpenBSD: mmu.h,v 1.2 2008/06/26 05:42:12 ray Exp $ */
/* $NetBSD: mmu.h,v 1.9 2006/03/04 01:55:03 uwe Exp $ */
/*-
* Copyright (c) 2002 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by UCHIYAMA Yasushi.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _SH_MMU_H_
#define _SH_MMU_H_
/*
* Initialize routines.
* sh_mmu_init Assign function vector. Don't access hardware.
* Call as early as possible.
* sh_mmu_start Reset TLB entry, set default ASID, and start to
* translate addresses.
* Call after exception vector was installed.
*
* TLB access ops.
* sh_tlb_invalidate_addr invalidate TLB entris for given
* virtual addr with ASID.
* sh_tlb_invalidate_asid invalidate TLB entries for given ASID.
* sh_tlb_invalidate_all invalidate all non-wired TLB entries.
* sh_tlb_set_asid set ASID.
* sh_tlb_update load new PTE to TLB.
*
*/
void sh_mmu_init(void);
void sh_mmu_information(void);
void sh_tlb_set_asid(int);
#ifdef SH3
void sh3_mmu_start(void);
void sh3_tlb_invalidate_addr(int, vaddr_t);
void sh3_tlb_invalidate_asid(int);
void sh3_tlb_invalidate_all(void);
void sh3_tlb_update(int, vaddr_t, uint32_t);
#endif
#ifdef SH4
void sh4_mmu_start(void);
void sh4_tlb_invalidate_addr(int, vaddr_t);
void sh4_tlb_invalidate_asid(int);
void sh4_tlb_invalidate_all(void);
void sh4_tlb_update(int, vaddr_t, uint32_t);
#endif
#if defined(SH3) && defined(SH4)
extern uint32_t __sh_PTEH;
extern void (*__sh_mmu_start)(void);
extern void (*__sh_tlb_invalidate_addr)(int, vaddr_t);
extern void (*__sh_tlb_invalidate_asid)(int);
extern void (*__sh_tlb_invalidate_all)(void);
extern void (*__sh_tlb_update)(int, vaddr_t, uint32_t);
#define sh_mmu_start() (*__sh_mmu_start)()
#define sh_tlb_invalidate_addr(a, va) (*__sh_tlb_invalidate_addr)(a, va)
#define sh_tlb_invalidate_asid(a) (*__sh_tlb_invalidate_asid)(a)
#define sh_tlb_invalidate_all() (*__sh_tlb_invalidate_all)()
#define sh_tlb_update(a, va, pte) (*__sh_tlb_update)(a, va, pte)
#elif defined(SH3)
#define sh_mmu_start() sh3_mmu_start()
#define sh_tlb_invalidate_addr(a, va) sh3_tlb_invalidate_addr(a, va)
#define sh_tlb_invalidate_asid(a) sh3_tlb_invalidate_asid(a)
#define sh_tlb_invalidate_all() sh3_tlb_invalidate_all()
#define sh_tlb_update(a, va, pte) sh3_tlb_update(a, va, pte)
#elif defined(SH4)
#define sh_mmu_start() sh4_mmu_start()
#define sh_tlb_invalidate_addr(a, va) sh4_tlb_invalidate_addr(a, va)
#define sh_tlb_invalidate_asid(a) sh4_tlb_invalidate_asid(a)
#define sh_tlb_invalidate_all() sh4_tlb_invalidate_all()
#define sh_tlb_update(a, va, pte) sh4_tlb_update(a, va, pte)
#endif
#endif /* !_SH_MMU_H_ */
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