1 /* $NetBSD: pte.h,v 1.1 2006/04/07 14:21:18 cherry Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 Doug Rabson 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #ifndef _MACHINE_PTE_H_ 32 #define _MACHINE_PTE_H_ 33 34 #define PTE_PRESENT 0x0000000000000001 35 #define PTE__RV1_ 0x0000000000000002 36 #define PTE_MA_MASK 0x000000000000001C 37 #define PTE_MA_WB 0x0000000000000000 38 #define PTE_MA_UC 0x0000000000000010 39 #define PTE_MA_UCE 0x0000000000000014 40 #define PTE_MA_WC 0x0000000000000018 41 #define PTE_MA_NATPAGE 0x000000000000001C 42 #define PTE_ACCESSED 0x0000000000000020 43 #define PTE_DIRTY 0x0000000000000040 44 #define PTE_PL_MASK 0x0000000000000180 45 #define PTE_PL_KERN 0x0000000000000000 46 #define PTE_PL_USER 0x0000000000000180 47 #define PTE_AR_MASK 0x0000000000000E00 48 49 #define PTE_AR_R 0x0000000000000000 50 #define PTE_AR_RX 0x0000000000000200 51 #define PTE_AR_RW 0x0000000000000400 52 #define PTE_AR_RWX 0x0000000000000600 53 #define PTE_AR_R_RW 0x0000000000000800 54 #define PTE_AR_RX_RWX 0x0000000000000A00 55 #define PTE_AR_RWX_RW 0x0000000000000C00 56 #define PTE_AR_X_RX 0x0000000000000E00 57 #define PTE_PPN_MASK 0x0003FFFFFFFFF000 58 #define PTE__RV2_ 0x000C000000000000 59 #define PTE_ED 0x0010000000000000 60 #define PTE_IG_MASK 0xFFE0000000000000 61 #define PTE_WIRED 0x0020000000000000 62 #define PTE_MANAGED 0x0040000000000000 63 #define PTE_PROT_MASK 0x0700000000000000 64 65 #define ITIR__RV1_ 0x0000000000000003 66 #define ITIR_PS_MASK 0x00000000000000FC 67 #define ITIR_KEY_MASK 0x00000000FFFFFF00 68 #define ITIR__RV2_ 0xFFFFFFFF00000000 69 70 #ifndef _LOCORE 71 72 typedef uint64_t pt_entry_t; 73 74 static __inline pt_entry_t 75 pte_atomic_clear(pt_entry_t *ptep, uint64_t val) 76 { 77 return (atomic_clear_64(ptep, val)); 78 } 79 80 static __inline pt_entry_t 81 pte_atomic_set(pt_entry_t *ptep, uint64_t val) 82 { 83 return (atomic_set_64(ptep, val)); 84 } 85 86 /* 87 * A long-format VHPT entry. 88 */ 89 struct ia64_lpte { 90 pt_entry_t pte; 91 uint64_t itir; 92 uint64_t tag; /* includes ti */ 93 uint64_t chain; /* pa of collision chain */ 94 }; 95 96 97 /* 98 * Layout of rr[x]. 99 */ 100 struct ia64_rr { 101 uint64_t rr_ve :1; /* bit 0 */ 102 uint64_t __rv1__ :1; /* bit 1 */ 103 uint64_t rr_ps :6; /* bits 2..7 */ 104 uint64_t rr_rid :24; /* bits 8..31 */ 105 uint64_t __rv2__ :32; /* bits 32..63 */ 106 }; 107 108 #endif /* !LOCORE */ 109 110 #endif /* !_MACHINE_PTE_H_ */ 111