mtrr.h revision 1.2
1 1.2 fvdl /* $NetBSD: mtrr.h,v 1.2 2001/09/10 10:10:33 fvdl Exp $ */ 2 1.2 fvdl 3 1.2 fvdl /*- 4 1.2 fvdl * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 1.2 fvdl * All rights reserved. 6 1.2 fvdl * 7 1.2 fvdl * This code is derived from software contributed to The NetBSD Foundation 8 1.2 fvdl * by Bill Sommerfeld 9 1.2 fvdl * 10 1.2 fvdl * Redistribution and use in source and binary forms, with or without 11 1.2 fvdl * modification, are permitted provided that the following conditions 12 1.2 fvdl * are met: 13 1.2 fvdl * 1. Redistributions of source code must retain the above copyright 14 1.2 fvdl * notice, this list of conditions and the following disclaimer. 15 1.2 fvdl * 2. Redistributions in binary form must reproduce the above copyright 16 1.2 fvdl * notice, this list of conditions and the following disclaimer in the 17 1.2 fvdl * documentation and/or other materials provided with the distribution. 18 1.2 fvdl * 3. All advertising materials mentioning features or use of this software 19 1.2 fvdl * must display the following acknowledgement: 20 1.2 fvdl * This product includes software developed by the NetBSD 21 1.2 fvdl * Foundation, Inc. and its contributors. 22 1.2 fvdl * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.2 fvdl * contributors may be used to endorse or promote products derived 24 1.2 fvdl * from this software without specific prior written permission. 25 1.2 fvdl * 26 1.2 fvdl * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.2 fvdl * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.2 fvdl * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.2 fvdl * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.2 fvdl * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.2 fvdl * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.2 fvdl * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.2 fvdl * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.2 fvdl * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.2 fvdl * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.2 fvdl * POSSIBILITY OF SUCH DAMAGE. 37 1.2 fvdl */ 38 1.2 fvdl 39 1.2 fvdl #ifndef _I386_MTRR_H_ 40 1.2 fvdl #define _I386_MTRR_H_ 41 1.2 fvdl 42 1.2 fvdl #define MTRR_I686_FIXED_IDX64K 0 43 1.2 fvdl #define MTRR_I686_FIXED_IDX16K 1 44 1.2 fvdl #define MTRR_I686_FIXED_IDX4K 3 45 1.2 fvdl 46 1.2 fvdl #define MTRR_I686_NVAR 8 47 1.2 fvdl 48 1.2 fvdl #define MTRR_I686_64K_START 0x00000 49 1.2 fvdl #define MTRR_I686_16K_START 0x80000 50 1.2 fvdl #define MTRR_I686_4K_START 0xc0000 51 1.2 fvdl 52 1.2 fvdl #define MTRR_I686_NFIXED_64K 1 53 1.2 fvdl #define MTRR_I686_NFIXED_16K 2 54 1.2 fvdl #define MTRR_I686_NFIXED_4K 8 55 1.2 fvdl #define MTRR_I686_NFIXED 11 56 1.2 fvdl #define MTRR_I686_NFIXED_SOFT_64K (MTRR_I686_NFIXED_64K * 8) 57 1.2 fvdl #define MTRR_I686_NFIXED_SOFT_16K (MTRR_I686_NFIXED_16K * 8) 58 1.2 fvdl #define MTRR_I686_NFIXED_SOFT_4K (MTRR_I686_NFIXED_4K * 8) 59 1.2 fvdl #define MTRR_I686_NFIXED_SOFT (MTRR_I686_NFIXED * 8) 60 1.2 fvdl 61 1.2 fvdl #define MTRR_I686_ENABLE_MASK 0x0800 62 1.2 fvdl #define MTRR_I686_FIXED_ENABLE_MASK 0x0400 63 1.2 fvdl 64 1.2 fvdl #define MTRR_I686_CAP_VCNT_MASK 0x00ff 65 1.2 fvdl #define MTRR_I686_CAP_FIX_MASK 0x0100 66 1.2 fvdl #define MTRR_I686_CAP_WC_MASK 0x0400 67 1.2 fvdl 68 1.2 fvdl #define MTRR_TYPE_UC 0 69 1.2 fvdl #define MTRR_TYPE_WC 1 70 1.2 fvdl #define MTRR_TYPE_UNDEF1 2 71 1.2 fvdl #define MTRR_TYPE_UNDEF2 3 72 1.2 fvdl #define MTRR_TYPE_WT 4 73 1.2 fvdl #define MTRR_TYPE_WP 5 74 1.2 fvdl #define MTRR_TYPE_WB 6 75 1.2 fvdl 76 1.2 fvdl struct mtrr_state { 77 1.2 fvdl uint32_t msraddr; 78 1.2 fvdl uint64_t msrval; 79 1.2 fvdl }; 80 1.2 fvdl 81 1.2 fvdl #define MTRR_PRIVATE 0x0001 /* 'own' range, reset at exit */ 82 1.2 fvdl #define MTRR_FIXED 0x0002 /* use fixed range mtrr */ 83 1.2 fvdl #define MTRR_VALID 0x0004 /* entry is valid */ 84 1.2 fvdl 85 1.2 fvdl #define MTRR_CANTSET MTRR_FIXED 86 1.2 fvdl 87 1.2 fvdl #define MTRR_I686_MASK_VALID (1 << 11) 88 1.2 fvdl 89 1.2 fvdl 90 1.2 fvdl #ifdef _KERNEL 91 1.2 fvdl 92 1.2 fvdl #define mtrr_base_value(mtrrp) \ 93 1.2 fvdl (((uint64_t)(mtrrp)->base) | ((uint64_t)(mtrrp)->type)) 94 1.2 fvdl #define mtrr_mask_value(mtrrp) \ 95 1.2 fvdl ((~((mtrrp)->len - 1) & 0x0000000ffffff000)) 96 1.2 fvdl 97 1.2 fvdl 98 1.2 fvdl #define mtrr_len(val) \ 99 1.2 fvdl ((~((val) & 0x0000000ffffff000)+1) & 0x0000000ffffff000) 100 1.2 fvdl #define mtrr_base(val) ((val) & 0x0000000ffffff000) 101 1.2 fvdl #define mtrr_type(val) ((uint8_t)((val) & 0x00000000000000ff)) 102 1.2 fvdl #define mtrr_valid(val) (((val) & MTRR_I686_MASK_VALID) != 0) 103 1.2 fvdl 104 1.2 fvdl struct proc; 105 1.2 fvdl struct mtrr; 106 1.2 fvdl 107 1.2 fvdl void i686_mtrr_init_first(void); 108 1.2 fvdl 109 1.2 fvdl struct mtrr_funcs { 110 1.2 fvdl void (*init_cpu)(struct cpu_info *ci); 111 1.2 fvdl void (*reload_cpu)(struct cpu_info *ci); 112 1.2 fvdl void (*clean)(struct proc *p); 113 1.2 fvdl int (*set)(struct mtrr *, int *n, struct proc *p, int flags); 114 1.2 fvdl int (*get)(struct mtrr *, int *n, struct proc *p, int flags); 115 1.2 fvdl void (*commit)(void); 116 1.2 fvdl void (*dump)(const char *tag); 117 1.2 fvdl }; 118 1.2 fvdl 119 1.2 fvdl extern struct mtrr_funcs i686_mtrr_funcs; 120 1.2 fvdl extern struct mtrr_funcs *mtrr_funcs; 121 1.2 fvdl 122 1.2 fvdl #define mtrr_init_cpu(ci) mtrr_funcs->init_cpu(ci) 123 1.2 fvdl #define mtrr_reload_cpu(ci) mtrr_funcs->reload_cpu(ci) 124 1.2 fvdl #define mtrr_clean(p) mtrr_funcs->clean(p) 125 1.2 fvdl #define mtrr_set(mp,n,p,f) mtrr_funcs->set(mp,n,p,f) 126 1.2 fvdl #define mtrr_get(mp,n,p,f) mtrr_funcs->get(mp,n,p,f) 127 1.2 fvdl #define mtrr_dump(s) mtrr_funcs->dump(s) 128 1.2 fvdl #define mtrr_commit() mtrr_funcs->commit() 129 1.2 fvdl 130 1.2 fvdl #define MTRR_GETSET_USER 0x0001 131 1.2 fvdl #define MTRR_GETSET_KERNEL 0x0002 132 1.2 fvdl 133 1.2 fvdl #endif /* _KERNEL */ 134 1.2 fvdl 135 1.2 fvdl struct mtrr { 136 1.2 fvdl uint64_t base; /* physical base address */ 137 1.2 fvdl uint64_t len; 138 1.2 fvdl uint8_t type; 139 1.2 fvdl int flags; 140 1.2 fvdl pid_t owner; /* valid if MTRR_PRIVATE set in flags */ 141 1.2 fvdl }; 142 1.2 fvdl 143 1.2 fvdl #endif /* _I386_MTRR_H_ */ 144
Indexes created Fri Sep 26 08:10:20 GMT 2025