1/*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1997 Berkeley Software Design, Inc. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Berkeley Software Design Inc's name may not be used to endorse or 15 * promote products derived from this software without specific prior 16 * written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN INC BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * from: BSDI: pmap.v9.h,v 1.10.2.6 1999/08/23 22:18:44 cp Exp 31 * $FreeBSD$ 32 */ 33 34#ifndef _MACHINE_TTE_H_ 35#define _MACHINE_TTE_H_ 36 37#define TTE_SHIFT (5) 38 39#define TD_SIZE_SHIFT (61) 40#define TD_SOFT2_SHIFT (50) 41#define TD_RSVD2_SHIFT (49) 42#define TD_SIZE2_SHIFT (48) 43#define TD_DIAG_SF_SHIFT (41) 44#define TD_RSVD_CH_SHIFT (43) 45#define TD_RSVD_OC_SHIFT (47) 46#define TD_RSVD_PT_SHIFT TD_RSVD_CH_SHIFT 47#define TD_RSVD_VE_SHIFT (41) 48#define TD_PA_SHIFT (13) 49#define TD_SOFT_SHIFT (7) 50 51#define TD_SIZE_BITS (2) 52#define TD_SOFT2_BITS (9) 53#define TD_RSVD2_BITS (1) /* US-IV+, SPARC64 VI, VII, VIIIfx */ 54#define TD_SIZE2_BITS (1) /* US-IV+, SPARC64 VI, VII, VIIIfx */ 55#define TD_DIAG_SF_BITS (9) /* US-I, II{,e,i} */ 56#define TD_RSVD_CH_BITS (7) /* US-III{,i,+}, US-IV, SPARC64 V */ 57#define TD_RSVD_OC_BITS (1) /* SPARC64 VI, VII */ 58#define TD_RSVD_PT_BITS (5) /* US-IV+, SPARC64 VI, VII */ 59#define TD_RSVD_VE_BITS (7) /* SPARC64 VIIIfx */ 60#define TD_PA_CH_BITS (30) /* US-III{,i,+}, US-IV{,+}, SPARC64 V */ 61#define TD_PA_OC_BITS (34) /* SPARC64 VI, VII */ 62#define TD_PA_SF_BITS (28) /* US-I, II{,e,i}, SPARC64 VIIIfx */ 63#define TD_PA_BITS TD_PA_CH_BITS 64#define TD_SOFT_BITS (6) 65 66#define TD_SIZE_MASK ((1UL << TD_SIZE_BITS) - 1) 67#define TD_SOFT2_MASK ((1UL << TD_SOFT2_BITS) - 1) 68#define TD_RSVD2_MASK ((1UL << TD_RSVD2_BITS) - 1) 69#define TD_SIZE2_MASK ((1UL << TD_SIZE2_BITS) - 1) 70#define TD_DIAG_SF_MASK ((1UL << TD_DIAG_SF_BITS) - 1) 71#define TD_RSVD_CH_MASK ((1UL << TD_RSVD_CH_BITS) - 1) 72#define TD_RSVD_OC_MASK ((1UL << TD_RSVD_OC_BITS) - 1) 73#define TD_RSVD_PT_MASK ((1UL << TD_RSVD_PT_BITS) - 1) 74#define TD_RSVD_VE_MASK ((1UL << TD_RSVD_VE_BITS) - 1) 75#define TD_PA_CH_MASK ((1UL << TD_PA_CH_BITS) - 1) 76#define TD_PA_OC_MASK ((1UL << TD_PA_OC_BITS) - 1) 77#define TD_PA_SF_MASK ((1UL << TD_PA_SF_BITS) - 1) 78#define TD_PA_MASK ((1UL << TD_PA_BITS) - 1) 79#define TD_SOFT_MASK ((1UL << TD_SOFT_BITS) - 1) 80 81#define TS_8K (0UL) 82#define TS_64K (1UL) 83#define TS_512K (2UL) 84#define TS_4M (3UL) 85#define TS_32M (4UL) /* US-IV+, SPARC64 VI, VII only */ 86#define TS_256M (5UL) /* US-IV+, SPARC64 VI, VII only */ 87#define TS_2G (6UL) /* SPARC64 VIIIfx only */ 88 89#define TS_MIN TS_8K 90#define TS_MAX TS_4M 91 92#define TD_V (1UL << 63) 93#define TD_8K (TS_8K << TD_SIZE_SHIFT) 94#define TD_64K (TS_64K << TD_SIZE_SHIFT) 95#define TD_512K (TS_512K << TD_SIZE_SHIFT) 96#define TD_4M (TS_4M << TD_SIZE_SHIFT) 97#define TD_32M \ 98 (((TS_32M & TD_SIZE_MASK) << TD_SIZE_SHIFT) | \ 99 (TD_SIZE2_MASK << TD_SIZE2_SHIFT)) 100#define TD_256M \ 101 (((TS_256M & TD_SIZE_MASK) << TD_SIZE_SHIFT) | \ 102 (TD_SIZE2_MASK << TD_SIZE2_SHIFT)) 103#define TD_2G \ 104 (((TS_2G & TD_SIZE_MASK) << TD_SIZE_SHIFT) | \ 105 (TD_SIZE2_MASK << TD_SIZE2_SHIFT)) 106#define TD_NFO (1UL << 60) 107#define TD_IE (1UL << 59) 108#define TD_PA(pa) ((pa) & (TD_PA_MASK << TD_PA_SHIFT)) 109/* NOTE: bit 6 of TD_SOFT will be sign-extended if used as an immediate. */ 110#define TD_FAKE ((1UL << 5) << TD_SOFT_SHIFT) 111#define TD_EXEC ((1UL << 4) << TD_SOFT_SHIFT) 112#define TD_REF ((1UL << 3) << TD_SOFT_SHIFT) 113#define TD_PV ((1UL << 2) << TD_SOFT_SHIFT) 114#define TD_SW ((1UL << 1) << TD_SOFT_SHIFT) 115#define TD_WIRED ((1UL << 0) << TD_SOFT_SHIFT) 116#define TD_L (1UL << 6) 117#define TD_CP (1UL << 5) 118#define TD_CV (1UL << 4) 119#define TD_E (1UL << 3) 120#define TD_P (1UL << 2) 121#define TD_W (1UL << 1) 122#define TD_G (1UL << 0) 123 124#define TV_SIZE_BITS (TD_SIZE_BITS) 125#define TV_VPN(va, sz) ((((va) >> TTE_PAGE_SHIFT(sz)) << TV_SIZE_BITS) | sz) 126 127#define TTE_SIZE_SPREAD (3) 128#define TTE_PAGE_SHIFT(sz) \ 129 (PAGE_SHIFT + ((sz) * TTE_SIZE_SPREAD)) 130 131#define TTE_GET_SIZE(tp) \ 132 (((tp)->tte_data >> TD_SIZE_SHIFT) & TD_SIZE_MASK) 133#define TTE_GET_PAGE_SHIFT(tp) \ 134 TTE_PAGE_SHIFT(TTE_GET_SIZE(tp)) 135#define TTE_GET_PAGE_SIZE(tp) \ 136 (1 << TTE_GET_PAGE_SHIFT(tp)) 137#define TTE_GET_PAGE_MASK(tp) \ 138 (TTE_GET_PAGE_SIZE(tp) - 1) 139 140#define TTE_GET_PA(tp) \ 141 ((tp)->tte_data & (TD_PA_MASK << TD_PA_SHIFT)) 142#define TTE_GET_VPN(tp) \ 143 ((tp)->tte_vpn >> TV_SIZE_BITS) 144#define TTE_GET_VA(tp) \ 145 (TTE_GET_VPN(tp) << TTE_GET_PAGE_SHIFT(tp)) 146#define TTE_GET_PMAP(tp) \ 147 (((tp)->tte_data & TD_P) != 0 ? (kernel_pmap) : \ 148 (PHYS_TO_VM_PAGE(pmap_kextract((vm_offset_t)(tp)))->md.pmap)) 149#define TTE_ZERO(tp) \ 150 memset(tp, 0, sizeof(*tp)) 151 152struct pmap; 153 154struct tte { 155 u_long tte_vpn; 156 u_long tte_data; 157 TAILQ_ENTRY(tte) tte_link; 158}; 159 160static __inline int 161tte_match(struct tte *tp, vm_offset_t va) 162{ 163 164 return (((tp->tte_data & TD_V) != 0) && 165 (tp->tte_vpn == TV_VPN(va, TTE_GET_SIZE(tp)))); 166} 167 168#endif /* !_MACHINE_TTE_H_ */ 169