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Annotation of sys/arch/sh/include/mmu_sh3.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: mmu_sh3.h,v 1.1.1.1 2006/10/06 21:02:55 miod Exp $    */
                      2: /*     $NetBSD: mmu_sh3.h,v 1.6 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_SH3_H_
                     41: #define        _SH_MMU_SH3_H_
                     42: #include <sh/devreg.h>
                     43:
                     44: /* 128-entry 4-way set-associative */
                     45: #define        SH3_MMU_WAY                     4
                     46: #define        SH3_MMU_ENTRY                   32
                     47:
                     48: #define        SH3_PTEH                        0xfffffff0
                     49: #define          SH3_PTEH_ASID_MASK              0x000000ff
                     50: #define          SH3_PTEH_VPN_MASK               0xfffffc00
                     51: #define        SH3_PTEL                        0xfffffff4
                     52: #define          SH3_PTEL_HWBITS                 0x1ffff17e /* [28:12][8][6:1] */
                     53: #define        SH3_TTB                         0xfffffff8
                     54: #define        SH3_TEA                         0xfffffffc
                     55: #define        SH3_MMUCR                       0xffffffe0
                     56: #define          SH3_MMUCR_AT                    0x00000001
                     57: #define          SH3_MMUCR_IX                    0x00000002
                     58: #define          SH3_MMUCR_TF                    0x00000004
                     59: #define          SH3_MMUCR_RC                    0x00000030
                     60: #define          SH3_MMUCR_SV                    0x00000100
                     61:
                     62: /*
                     63:  * memory-mapped TLB
                     64:  */
                     65: /* Address array */
                     66: #define        SH3_MMUAA                       0xf2000000
                     67: /* address specification */
                     68: #define          SH3_MMU_VPN_SHIFT               12
                     69: #define          SH3_MMU_VPN_MASK                0x0001f000    /* [16:12] */
                     70: #define          SH3_MMU_WAY_SHIFT               8
                     71: #define          SH3_MMU_WAY_MASK                0x00000300    /* [9:8] */
                     72: /* data specification */
                     73: #define          SH3_MMU_D_VALID                 0x00000100
                     74: #define          SH3_MMUAA_D_VPN_MASK_1K         0xfffe0c00    /* [31:17][11:10] */
                     75: #define          SH3_MMUAA_D_VPN_MASK_4K         0xfffe0000    /* [31:17] */
                     76: #define          SH3_MMUAA_D_ASID_MASK           0x000000ff
                     77:
                     78: /* Data array */
                     79: #define        SH3_MMUDA                       0xf3000000
                     80: #define          SH3_MMUDA_D_PPN_MASK            0xfffffc00
                     81: #define          SH3_MMUDA_D_V                   0x00000100
                     82: #define          SH3_MMUDA_D_PR_SHIFT            5
                     83: #define          SH3_MMUDA_D_PR_MASK             0x00000060    /* [6:5] */
                     84: #define          SH3_MMUDA_D_SZ                  0x00000010
                     85: #define          SH3_MMUDA_D_C                   0x00000008
                     86: #define          SH3_MMUDA_D_D                   0x00000004
                     87: #define          SH3_MMUDA_D_SH                  0x00000002
                     88:
                     89: #define        SH3_TLB_DISABLE *(volatile uint32_t *)SH3_MMUCR = SH3_MMUCR_TF
                     90: #endif /* !_SH_MMU_SH3_H_ */