mtrr.h revision 1.4.2.2
1 1.4.2.2 nathanw /* $NetBSD: mtrr.h,v 1.4.2.2 2001/09/21 22:35:09 nathanw Exp $ */ 2 1.4.2.2 nathanw 3 1.4.2.2 nathanw /*- 4 1.4.2.2 nathanw * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 1.4.2.2 nathanw * All rights reserved. 6 1.4.2.2 nathanw * 7 1.4.2.2 nathanw * This code is derived from software contributed to The NetBSD Foundation 8 1.4.2.2 nathanw * by Bill Sommerfeld 9 1.4.2.2 nathanw * 10 1.4.2.2 nathanw * Redistribution and use in source and binary forms, with or without 11 1.4.2.2 nathanw * modification, are permitted provided that the following conditions 12 1.4.2.2 nathanw * are met: 13 1.4.2.2 nathanw * 1. Redistributions of source code must retain the above copyright 14 1.4.2.2 nathanw * notice, this list of conditions and the following disclaimer. 15 1.4.2.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 16 1.4.2.2 nathanw * notice, this list of conditions and the following disclaimer in the 17 1.4.2.2 nathanw * documentation and/or other materials provided with the distribution. 18 1.4.2.2 nathanw * 3. All advertising materials mentioning features or use of this software 19 1.4.2.2 nathanw * must display the following acknowledgement: 20 1.4.2.2 nathanw * This product includes software developed by the NetBSD 21 1.4.2.2 nathanw * Foundation, Inc. and its contributors. 22 1.4.2.2 nathanw * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.4.2.2 nathanw * contributors may be used to endorse or promote products derived 24 1.4.2.2 nathanw * from this software without specific prior written permission. 25 1.4.2.2 nathanw * 26 1.4.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.4.2.2 nathanw * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.4.2.2 nathanw * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.4.2.2 nathanw * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.4.2.2 nathanw * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.4.2.2 nathanw * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.4.2.2 nathanw * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.4.2.2 nathanw * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.4.2.2 nathanw * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.4.2.2 nathanw * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.4.2.2 nathanw * POSSIBILITY OF SUCH DAMAGE. 37 1.4.2.2 nathanw */ 38 1.4.2.2 nathanw 39 1.4.2.2 nathanw #ifndef _I386_MTRR_H_ 40 1.4.2.2 nathanw #define _I386_MTRR_H_ 41 1.4.2.2 nathanw 42 1.4.2.2 nathanw #define MTRR_I686_FIXED_IDX64K 0 43 1.4.2.2 nathanw #define MTRR_I686_FIXED_IDX16K 1 44 1.4.2.2 nathanw #define MTRR_I686_FIXED_IDX4K 3 45 1.4.2.2 nathanw 46 1.4.2.2 nathanw #define MTRR_I686_NVAR 8 47 1.4.2.2 nathanw 48 1.4.2.2 nathanw #define MTRR_I686_64K_START 0x00000 49 1.4.2.2 nathanw #define MTRR_I686_16K_START 0x80000 50 1.4.2.2 nathanw #define MTRR_I686_4K_START 0xc0000 51 1.4.2.2 nathanw 52 1.4.2.2 nathanw #define MTRR_I686_NFIXED_64K 1 53 1.4.2.2 nathanw #define MTRR_I686_NFIXED_16K 2 54 1.4.2.2 nathanw #define MTRR_I686_NFIXED_4K 8 55 1.4.2.2 nathanw #define MTRR_I686_NFIXED 11 56 1.4.2.2 nathanw #define MTRR_I686_NFIXED_SOFT_64K (MTRR_I686_NFIXED_64K * 8) 57 1.4.2.2 nathanw #define MTRR_I686_NFIXED_SOFT_16K (MTRR_I686_NFIXED_16K * 8) 58 1.4.2.2 nathanw #define MTRR_I686_NFIXED_SOFT_4K (MTRR_I686_NFIXED_4K * 8) 59 1.4.2.2 nathanw #define MTRR_I686_NFIXED_SOFT (MTRR_I686_NFIXED * 8) 60 1.4.2.2 nathanw 61 1.4.2.2 nathanw #define MTRR_I686_ENABLE_MASK 0x0800 62 1.4.2.2 nathanw #define MTRR_I686_FIXED_ENABLE_MASK 0x0400 63 1.4.2.2 nathanw 64 1.4.2.2 nathanw #define MTRR_I686_CAP_VCNT_MASK 0x00ff 65 1.4.2.2 nathanw #define MTRR_I686_CAP_FIX_MASK 0x0100 66 1.4.2.2 nathanw #define MTRR_I686_CAP_WC_MASK 0x0400 67 1.4.2.2 nathanw 68 1.4.2.2 nathanw #define MTRR_TYPE_UC 0 69 1.4.2.2 nathanw #define MTRR_TYPE_WC 1 70 1.4.2.2 nathanw #define MTRR_TYPE_UNDEF1 2 71 1.4.2.2 nathanw #define MTRR_TYPE_UNDEF2 3 72 1.4.2.2 nathanw #define MTRR_TYPE_WT 4 73 1.4.2.2 nathanw #define MTRR_TYPE_WP 5 74 1.4.2.2 nathanw #define MTRR_TYPE_WB 6 75 1.4.2.2 nathanw 76 1.4.2.2 nathanw struct mtrr_state { 77 1.4.2.2 nathanw uint32_t msraddr; 78 1.4.2.2 nathanw uint64_t msrval; 79 1.4.2.2 nathanw }; 80 1.4.2.2 nathanw 81 1.4.2.2 nathanw #define MTRR_PRIVATE 0x0001 /* 'own' range, reset at exit */ 82 1.4.2.2 nathanw #define MTRR_FIXED 0x0002 /* use fixed range mtrr */ 83 1.4.2.2 nathanw #define MTRR_VALID 0x0004 /* entry is valid */ 84 1.4.2.2 nathanw 85 1.4.2.2 nathanw #define MTRR_CANTSET MTRR_FIXED 86 1.4.2.2 nathanw 87 1.4.2.2 nathanw #define MTRR_I686_MASK_VALID (1 << 11) 88 1.4.2.2 nathanw 89 1.4.2.2 nathanw /* 90 1.4.2.2 nathanw * AMD K6 MTRRs. 91 1.4.2.2 nathanw * 92 1.4.2.2 nathanw * There are two of these MTRR-like registers in the UWCRR. 93 1.4.2.2 nathanw */ 94 1.4.2.2 nathanw 95 1.4.2.2 nathanw #define MTRR_K6_ADDR_SHIFT 17 96 1.4.2.2 nathanw #define MTRR_K6_ADDR (0x7fffU << MTRR_K6_ADDR_SHIFT) 97 1.4.2.2 nathanw #define MTRR_K6_MASK_SHIFT 2 98 1.4.2.2 nathanw #define MTRR_K6_MASK (0x7fffU << MTRR_K6_MASK_SHIFT) 99 1.4.2.2 nathanw #define MTRR_K6_WC (1U << 1) /* write-combine */ 100 1.4.2.2 nathanw #define MTRR_K6_UC (1U << 0) /* uncached */ 101 1.4.2.2 nathanw 102 1.4.2.2 nathanw #define MTRR_K6_NVAR 2 103 1.4.2.2 nathanw 104 1.4.2.2 nathanw #ifdef _KERNEL 105 1.4.2.2 nathanw 106 1.4.2.2 nathanw #define mtrr_base_value(mtrrp) \ 107 1.4.2.2 nathanw (((uint64_t)(mtrrp)->base) | ((uint64_t)(mtrrp)->type)) 108 1.4.2.2 nathanw #define mtrr_mask_value(mtrrp) \ 109 1.4.2.2 nathanw ((~((mtrrp)->len - 1) & 0x0000000ffffff000)) 110 1.4.2.2 nathanw 111 1.4.2.2 nathanw 112 1.4.2.2 nathanw #define mtrr_len(val) \ 113 1.4.2.2 nathanw ((~((val) & 0x0000000ffffff000)+1) & 0x0000000ffffff000) 114 1.4.2.2 nathanw #define mtrr_base(val) ((val) & 0x0000000ffffff000) 115 1.4.2.2 nathanw #define mtrr_type(val) ((uint8_t)((val) & 0x00000000000000ff)) 116 1.4.2.2 nathanw #define mtrr_valid(val) (((val) & MTRR_I686_MASK_VALID) != 0) 117 1.4.2.2 nathanw 118 1.4.2.2 nathanw struct proc; 119 1.4.2.2 nathanw struct mtrr; 120 1.4.2.2 nathanw 121 1.4.2.2 nathanw void i686_mtrr_init_first(void); 122 1.4.2.2 nathanw void k6_mtrr_init_first(void); 123 1.4.2.2 nathanw 124 1.4.2.2 nathanw struct mtrr_funcs { 125 1.4.2.2 nathanw void (*init_cpu)(struct cpu_info *ci); 126 1.4.2.2 nathanw void (*reload_cpu)(struct cpu_info *ci); 127 1.4.2.2 nathanw void (*clean)(struct proc *p); 128 1.4.2.2 nathanw int (*set)(struct mtrr *, int *n, struct proc *p, int flags); 129 1.4.2.2 nathanw int (*get)(struct mtrr *, int *n, struct proc *p, int flags); 130 1.4.2.2 nathanw void (*commit)(void); 131 1.4.2.2 nathanw void (*dump)(const char *tag); 132 1.4.2.2 nathanw }; 133 1.4.2.2 nathanw 134 1.4.2.2 nathanw extern struct mtrr_funcs i686_mtrr_funcs; 135 1.4.2.2 nathanw extern struct mtrr_funcs k6_mtrr_funcs; 136 1.4.2.2 nathanw extern struct mtrr_funcs *mtrr_funcs; 137 1.4.2.2 nathanw 138 1.4.2.2 nathanw #define mtrr_init_cpu(ci) mtrr_funcs->init_cpu(ci) 139 1.4.2.2 nathanw #define mtrr_reload_cpu(ci) mtrr_funcs->reload_cpu(ci) 140 1.4.2.2 nathanw #define mtrr_clean(p) mtrr_funcs->clean(p) 141 1.4.2.2 nathanw #define mtrr_set(mp,n,p,f) mtrr_funcs->set(mp,n,p,f) 142 1.4.2.2 nathanw #define mtrr_get(mp,n,p,f) mtrr_funcs->get(mp,n,p,f) 143 1.4.2.2 nathanw #define mtrr_dump(s) mtrr_funcs->dump(s) 144 1.4.2.2 nathanw #define mtrr_commit() mtrr_funcs->commit() 145 1.4.2.2 nathanw 146 1.4.2.2 nathanw #define MTRR_GETSET_USER 0x0001 147 1.4.2.2 nathanw #define MTRR_GETSET_KERNEL 0x0002 148 1.4.2.2 nathanw 149 1.4.2.2 nathanw #endif /* _KERNEL */ 150 1.4.2.2 nathanw 151 1.4.2.2 nathanw struct mtrr { 152 1.4.2.2 nathanw uint64_t base; /* physical base address */ 153 1.4.2.2 nathanw uint64_t len; 154 1.4.2.2 nathanw uint8_t type; 155 1.4.2.2 nathanw int flags; 156 1.4.2.2 nathanw pid_t owner; /* valid if MTRR_PRIVATE set in flags */ 157 1.4.2.2 nathanw }; 158 1.4.2.2 nathanw 159 1.4.2.2 nathanw #endif /* _I386_MTRR_H_ */ 160
Indexes created Mon Oct 20 20:10:13 GMT 2025