1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (C) 2006-2012 Semihalf. 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 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 21 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 23 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 24 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 25 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 26 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 27 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 #ifndef _MACHINE_TLB_H_ 33 #define _MACHINE_TLB_H_ 34 35 #if defined(BOOKE_E500) 36 37 /* PowerPC E500 MAS registers */ 38 #define MAS0_TLBSEL(x) ((x << 28) & 0x10000000) 39 #define MAS0_ESEL(x) ((x << 16) & 0x003F0000) 40 41 #define MAS0_TLBSEL1 0x10000000 42 #define MAS0_TLBSEL0 0x00000000 43 #define MAS0_ESEL_TLB1MASK 0x000F0000 44 #define MAS0_ESEL_TLB0MASK 0x00030000 45 #define MAS0_ESEL_SHIFT 16 46 #define MAS0_NV_MASK 0x00000003 47 #define MAS0_NV_SHIFT 0 48 49 #define MAS1_VALID 0x80000000 50 #define MAS1_IPROT 0x40000000 51 #define MAS1_TID_MASK 0x00FF0000 52 #define MAS1_TID_SHIFT 16 53 #define MAS1_TS_MASK 0x00001000 54 #define MAS1_TS_SHIFT 12 55 #define MAS1_TSIZE_MASK 0x00000F00 56 #define MAS1_TSIZE_SHIFT 8 57 58 #define TLB_SIZE_4K 1 59 #define TLB_SIZE_16K 2 60 #define TLB_SIZE_64K 3 61 #define TLB_SIZE_256K 4 62 #define TLB_SIZE_1M 5 63 #define TLB_SIZE_4M 6 64 #define TLB_SIZE_16M 7 65 #define TLB_SIZE_64M 8 66 #define TLB_SIZE_256M 9 67 #define TLB_SIZE_1G 10 68 #define TLB_SIZE_4G 11 69 70 #ifdef __powerpc64__ 71 #define MAS2_EPN_MASK 0xFFFFFFFFFFFFF000UL 72 #else 73 #define MAS2_EPN_MASK 0xFFFFF000 74 #endif 75 #define MAS2_EPN_SHIFT 12 76 #define MAS2_X0 0x00000040 77 #define MAS2_X1 0x00000020 78 #define MAS2_W 0x00000010 79 #define MAS2_I 0x00000008 80 #define MAS2_M 0x00000004 81 #define MAS2_G 0x00000002 82 #define MAS2_E 0x00000001 83 #define MAS2_WIMGE_MASK 0x0000007F 84 85 #define MAS3_RPN 0xFFFFF000 86 #define MAS3_RPN_SHIFT 12 87 #define MAS3_U0 0x00000200 88 #define MAS3_U1 0x00000100 89 #define MAS3_U2 0x00000080 90 #define MAS3_U3 0x00000040 91 #define MAS3_UX 0x00000020 92 #define MAS3_SX 0x00000010 93 #define MAS3_UW 0x00000008 94 #define MAS3_SW 0x00000004 95 #define MAS3_UR 0x00000002 96 #define MAS3_SR 0x00000001 97 98 #define MAS4_TLBSELD1 0x10000000 99 #define MAS4_TLBSELD0 0x00000000 100 #define MAS4_TIDSELD_MASK 0x00030000 101 #define MAS4_TIDSELD_SHIFT 16 102 #define MAS4_TSIZED_MASK 0x00000F00 103 #define MAS4_TSIZED_SHIFT 8 104 #define MAS4_X0D 0x00000040 105 #define MAS4_X1D 0x00000020 106 #define MAS4_WD 0x00000010 107 #define MAS4_ID 0x00000008 108 #define MAS4_MD 0x00000004 109 #define MAS4_GD 0x00000002 110 #define MAS4_ED 0x00000001 111 112 #define MAS6_SPID0_MASK 0x00FF0000 113 #define MAS6_SPID0_SHIFT 16 114 #define MAS6_SAS 0x00000001 115 116 #define MAS7_RPN 0x0000000F 117 118 #define MAS1_GETTID(mas1) (((mas1) & MAS1_TID_MASK) >> MAS1_TID_SHIFT) 119 120 #define MAS2_TLB0_ENTRY_IDX_MASK 0x0007f000 121 #define MAS2_TLB0_ENTRY_IDX_SHIFT 12 122 123 /* 124 * Maximum number of TLB1 entries used for a permanent mapping of kernel 125 * region (kernel image plus statically allocated data). 126 */ 127 #define KERNEL_REGION_MAX_TLB_ENTRIES 4 128 129 /* 130 * Use MAS2_X0 to mark entries which will be copied 131 * to AP CPUs during SMP bootstrap. As result entries 132 * marked with _TLB_ENTRY_SHARED will be shared by all CPUs. 133 */ 134 #define _TLB_ENTRY_SHARED (MAS2_X0) /* XXX under SMP? */ 135 #define _TLB_ENTRY_IO (MAS2_I | MAS2_G) 136 #define _TLB_ENTRY_MEM (MAS2_M) 137 138 #define TLB1_MAX_ENTRIES 64 139 140 #if !defined(LOCORE) 141 typedef struct tlb_entry { 142 vm_paddr_t phys; 143 vm_offset_t virt; 144 vm_size_t size; 145 uint32_t mas1; 146 #ifdef __powerpc64__ 147 uint64_t mas2; 148 #else 149 uint32_t mas2; 150 #endif 151 uint32_t mas3; 152 uint32_t mas7; 153 } tlb_entry_t; 154 155 void tlb1_inval_entry(unsigned int); 156 void tlb1_init(void); 157 #endif /* !LOCORE */ 158 159 #endif /* BOOKE_E500 */ 160 161 #define TID_KERNEL 0 /* TLB TID to use for kernel (shared) translations */ 162 #define TID_KRESERVED 1 /* Number of TIDs reserved for kernel */ 163 #define TID_URESERVED 0 /* Number of TIDs reserved for user */ 164 #define TID_MIN (TID_KRESERVED + TID_URESERVED) 165 #define TID_MAX 255 166 #define TID_NONE -1 167 168 #define TLB_UNLOCKED 0 169 170 #if !defined(LOCORE) 171 172 typedef int tlbtid_t; 173 174 struct pmap; 175 176 void tlb_lock(uintptr_t *); 177 void tlb_unlock(uintptr_t *); 178 void tlb1_ap_prep(void); 179 int tlb1_set_entry(vm_offset_t, vm_paddr_t, vm_size_t, uint32_t); 180 181 #endif /* !LOCORE */ 182 183 #endif /* _MACHINE_TLB_H_ */ 184