1 /*- 2 * Copyright (C) 2006 Semihalf, Marian Balakowicz <m8@semihalf.com> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 19 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 21 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 22 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 23 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 24 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30 #ifndef _MACHINE_TLB_H_ 31 #define _MACHINE_TLB_H_ 32 33 /* PowerPC E500 MAS registers */ 34 #define MAS0_TLBSEL(x) ((x << 28) & 0x10000000) 35 #define MAS0_ESEL(x) ((x << 16) & 0x000F0000) 36 37 #define MAS0_TLBSEL1 0x10000000 38 #define MAS0_TLBSEL0 0x00000000 39 #define MAS0_ESEL_TLB1MASK 0x000F0000 40 #define MAS0_ESEL_TLB0MASK 0x00030000 41 #define MAS0_ESEL_SHIFT 16 42 #define MAS0_NV_MASK 0x00000003 43 #define MAS0_NV_SHIFT 0 44 45 #define MAS1_VALID 0x80000000 46 #define MAS1_IPROT 0x40000000 47 #define MAS1_TID_MASK 0x00FF0000 48 #define MAS1_TID_SHIFT 16 49 #define MAS1_TS_MASK 0x00001000 50 #define MAS1_TS_SHIFT 12 51 #define MAS1_TSIZE_MASK 0x00000F00 52 #define MAS1_TSIZE_SHIFT 8 53 54 #define TLB_SIZE_4K 1 55 #define TLB_SIZE_16K 2 56 #define TLB_SIZE_64K 3 57 #define TLB_SIZE_256K 4 58 #define TLB_SIZE_1M 5 59 #define TLB_SIZE_4M 6 60 #define TLB_SIZE_16M 7 61 #define TLB_SIZE_64M 8 62 #define TLB_SIZE_256M 9 63 #define TLB_SIZE_1G 10 64 #define TLB_SIZE_4G 11 65 66 #define MAS2_EPN_MASK 0xFFFFF000 67 #define MAS2_EPN_SHIFT 12 68 #define MAS2_X0 0x00000040 69 #define MAS2_X1 0x00000020 70 #define MAS2_W 0x00000010 71 #define MAS2_I 0x00000008 72 #define MAS2_M 0x00000004 73 #define MAS2_G 0x00000002 74 #define MAS2_E 0x00000001 75 76 #define MAS3_RPN 0xFFFFF000 77 #define MAS3_RPN_SHIFT 12 78 #define MAS3_U0 0x00000200 79 #define MAS3_U1 0x00000100 80 #define MAS3_U2 0x00000080 81 #define MAS3_U3 0x00000040 82 #define MAS3_UX 0x00000020 83 #define MAS3_SX 0x00000010 84 #define MAS3_UW 0x00000008 85 #define MAS3_SW 0x00000004 86 #define MAS3_UR 0x00000002 87 #define MAS3_SR 0x00000001 88 89 #define MAS4_TLBSELD1 0x10000000 90 #define MAS4_TLBSELD0 0x00000000 91 #define MAS4_TIDSELD_MASK 0x00030000 92 #define MAS4_TIDSELD_SHIFT 16 93 #define MAS4_TSIZED_MASK 0x00000F00 94 #define MAS4_TSIZED_SHIFT 8 95 #define MAS4_X0D 0x00000040 96 #define MAS4_X1D 0x00000020 97 #define MAS4_WD 0x00000010 98 #define MAS4_ID 0x00000008 99 #define MAS4_MD 0x00000004 100 #define MAS4_GD 0x00000002 101 #define MAS4_ED 0x00000001 102 103 #define MAS6_SPID0_MASK 0x00FF0000 104 #define MAS6_SPID0_SHIFT 16 105 #define MAS6_SAS 0x00000001 106 107 #define MAS1_GETTID(mas1) (((mas1) & MAS1_TID_MASK) >> MAS1_TID_SHIFT) 108 109 #define MAS2_TLB0_ENTRY_IDX_MASK 0x0007f000 110 #define MAS2_TLB0_ENTRY_IDX_SHIFT 12 111 112 /* 113 * Maximum number of TLB1 entries used for a permanent mapping of kernel 114 * region (kernel image plus statically allocated data). 115 */ 116 #define KERNEL_REGION_MAX_TLB_ENTRIES 4 117 118 #define _TLB_ENTRY_IO (MAS2_I | MAS2_G) 119 #ifdef SMP 120 #define _TLB_ENTRY_MEM (MAS2_M) 121 #else 122 #define _TLB_ENTRY_MEM (0) 123 #endif 124 125 #define TID_KERNEL 0 /* TLB TID to use for kernel (shared) translations */ 126 #define TID_KRESERVED 1 /* Number of TIDs reserved for kernel */ 127 #define TID_URESERVED 0 /* Number of TIDs reserved for user */ 128 #define TID_MIN (TID_KRESERVED + TID_URESERVED) 129 #define TID_MAX 255 130 #define TID_NONE -1 131 132 #if !defined(LOCORE) 133 typedef struct tlb_entry { 134 uint32_t mas1; 135 uint32_t mas2; 136 uint32_t mas3; 137 } tlb_entry_t; 138 139 typedef int tlbtid_t; 140 struct pmap; 141 142 void tlb0_print_tlbentries(void); 143 144 void tlb1_inval_entry(unsigned int); 145 void tlb1_init(vm_offset_t); 146 void tlb1_print_entries(void); 147 void tlb1_print_tlbentries(void); 148 149 #endif /* !LOCORE */ 150 151 #endif /* _MACHINE_TLB_H_ */ 152