Return to pte.h CVS log

Up to [local] / sys / arch / sh / include

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

1.1       nbrk        1: /*     $OpenBSD: pte.h,v 1.1.1.1 2006/10/06 21:02:55 miod Exp $        */
                      2: /*     $NetBSD: pte.h,v 1.11 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_PTE_H_
                     41: #define        _SH_PTE_H_
                     42:
                     43: /*
                     44:  * OpenBSD/sh PTE format.
                     45:  *
                     46:  * [Hardware bit]
                     47:  * SH3
                     48:  *       PPN   V   PR  SZ C  D  SH
                     49:  *     [28:10][8][6:5][4][3][2][1]
                     50:  *
                     51:  * SH4
                     52:  *             V  SZ  PR  SZ C  D  SH WT
                     53:  *     [28:10][8][7][6:5][4][3][2][1][0]
                     54:  *
                     55:  * [Software bit]
                     56:  *   [31]   - PMAP_WIRED bit (not hardware wired entry)
                     57:  *   [11:9] - SH4 PCMCIA Assistant bit. (space attribute bit only)
                     58:  */
                     59:
                     60: /*
                     61:  * Hardware bits
                     62:  */
                     63: #define        PG_PPN                  0x1ffff000      /* Physical page number mask */
                     64: #define        PG_V                    0x00000100      /* Valid */
                     65: #define        PG_PR_MASK              0x00000060      /* Page protection mask */
                     66: #define        PG_PR_URW               0x00000060      /* kernel/user read/write */
                     67: #define        PG_PR_URO               0x00000040      /* kernel/user read only */
                     68: #define        PG_PR_KRW               0x00000020      /* kernel read/write */
                     69: #define        PG_PR_KRO               0x00000000      /* kernel read only */
                     70: #define        PG_4K                   0x00000010      /* page size 4KB */
                     71: #define        PG_C                    0x00000008      /* Cacheable */
                     72: #define        PG_D                    0x00000004      /* Dirty */
                     73: #define        PG_SH                   0x00000002      /* Share status */
                     74: #define        PG_WT                   0x00000001      /* Write-through (SH4 only) */
                     75:
                     76: #define        PG_HW_BITS              0x1ffff17e      /* [28:12][8][6:1] */
                     77:
                     78: /*
                     79:  * Software bits
                     80:  */
                     81: #define        _PG_WIRED               0x80000000
                     82:
                     83: /* SH4 PCMCIA MMU support bits */
                     84: /* PTEA SA (Space Attribute bit) */
                     85: #define        _PG_PCMCIA              0x00000e00      /* [11:9] */
                     86: #define        _PG_PCMCIA_SHIFT        9
                     87: #define        _PG_PCMCIA_NONE         0x00000000      /* Non PCMCIA space */
                     88: #define        _PG_PCMCIA_IO           0x00000200      /* IOIS16 signal */
                     89: #define        _PG_PCMCIA_IO8          0x00000400      /* 8 bit I/O  */
                     90: #define        _PG_PCMCIA_IO16         0x00000600      /* 16 bit I/O  */
                     91: #define        _PG_PCMCIA_MEM8         0x00000800      /* 8 bit common memory */
                     92: #define        _PG_PCMCIA_MEM16        0x00000a00      /* 16 bit common memory */
                     93: #define        _PG_PCMCIA_ATTR8        0x00000c00      /* 8 bit attribute */
                     94: #define        _PG_PCMCIA_ATTR16       0x00000e00      /* 16 bit attribute */
                     95:
                     96: #ifndef _LOCORE
                     97: typedef uint32_t pt_entry_t;
                     98: #endif /* _LOCORE */
                     99: #endif /* !_SH_PTE_H_ */