1//===- RISCVSystemOperands.td ----------------------------*- tablegen -*-===// 2// 3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4// See https://llvm.org/LICENSE.txt for license information. 5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6// 7//===----------------------------------------------------------------------===// 8// 9// This file defines the symbolic operands permitted for various kinds of 10// RISC-V system instruction. 11// 12//===----------------------------------------------------------------------===// 13 14include "llvm/TableGen/SearchableTable.td" 15 16//===----------------------------------------------------------------------===// 17// CSR (control and status register read/write) instruction options. 18//===----------------------------------------------------------------------===// 19 20class SysReg<string name, bits<12> op> { 21 string Name = name; 22 bits<12> Encoding = op; 23 // A maximum of one alias is supported right now. 24 string AltName = name; 25 // FIXME: add these additional fields when needed. 26 // Privilege Access: Read and Write = 0, 1, 2; Read-Only = 3. 27 // Privilege Mode: User = 0, System = 1 or Machine = 3. 28 // bits<2> ReadWrite = op{11 - 10}; 29 // bits<2> XMode = op{9 - 8}; 30 // Check Extra field name and what bits 7-6 correspond to. 31 // bits<2> Extra = op{7 - 6}; 32 // Register number without the privilege bits. 33 // bits<6> Number = op{5 - 0}; 34 code FeaturesRequired = [{ {} }]; 35 bit isRV32Only = 0; 36} 37 38def SysRegsList : GenericTable { 39 let FilterClass = "SysReg"; 40 // FIXME: add "ReadWrite", "Mode", "Extra", "Number" fields when needed. 41 let Fields = [ "Name", "Encoding", "AltName", "FeaturesRequired", "isRV32Only" ]; 42 43 let PrimaryKey = [ "Encoding" ]; 44 let PrimaryKeyName = "lookupSysRegByEncoding"; 45} 46 47def lookupSysRegByName : SearchIndex { 48 let Table = SysRegsList; 49 let Key = [ "Name" ]; 50} 51 52def lookupSysRegByAltName : SearchIndex { 53 let Table = SysRegsList; 54 let Key = [ "AltName" ]; 55} 56 57// The following CSR encodings match those given in Tables 2.2, 58// 2.3, 2.4 and 2.5 in the RISC-V Instruction Set Manual 59// Volume II: Privileged Architecture. 60 61//===-------------------------- 62// User Trap Setup 63//===-------------------------- 64def : SysReg<"ustatus", 0x000>; 65def : SysReg<"uie", 0x004>; 66def : SysReg<"utvec", 0x005>; 67 68//===-------------------------- 69// User Trap Handling 70//===-------------------------- 71def : SysReg<"uscratch", 0x040>; 72def : SysReg<"uepc", 0x041>; 73def : SysReg<"ucause", 0x042>; 74def : SysReg<"utval", 0x043>; 75def : SysReg<"uip", 0x044>; 76 77//===-------------------------- 78// User Floating-Point CSRs 79//===-------------------------- 80 81def FFLAGS : SysReg<"fflags", 0x001>; 82def FRM : SysReg<"frm", 0x002>; 83def FCSR : SysReg<"fcsr", 0x003>; 84 85//===-------------------------- 86// User Counter/Timers 87//===-------------------------- 88def CYCLE : SysReg<"cycle", 0xC00>; 89def TIME : SysReg<"time", 0xC01>; 90def INSTRET : SysReg<"instret", 0xC02>; 91 92def : SysReg<"hpmcounter3", 0xC03>; 93def : SysReg<"hpmcounter4", 0xC04>; 94def : SysReg<"hpmcounter5", 0xC05>; 95def : SysReg<"hpmcounter6", 0xC06>; 96def : SysReg<"hpmcounter7", 0xC07>; 97def : SysReg<"hpmcounter8", 0xC08>; 98def : SysReg<"hpmcounter9", 0xC09>; 99def : SysReg<"hpmcounter10", 0xC0A>; 100def : SysReg<"hpmcounter11", 0xC0B>; 101def : SysReg<"hpmcounter12", 0xC0C>; 102def : SysReg<"hpmcounter13", 0xC0D>; 103def : SysReg<"hpmcounter14", 0xC0E>; 104def : SysReg<"hpmcounter15", 0xC0F>; 105def : SysReg<"hpmcounter16", 0xC10>; 106def : SysReg<"hpmcounter17", 0xC11>; 107def : SysReg<"hpmcounter18", 0xC12>; 108def : SysReg<"hpmcounter19", 0xC13>; 109def : SysReg<"hpmcounter20", 0xC14>; 110def : SysReg<"hpmcounter21", 0xC15>; 111def : SysReg<"hpmcounter22", 0xC16>; 112def : SysReg<"hpmcounter23", 0xC17>; 113def : SysReg<"hpmcounter24", 0xC18>; 114def : SysReg<"hpmcounter25", 0xC19>; 115def : SysReg<"hpmcounter26", 0xC1A>; 116def : SysReg<"hpmcounter27", 0xC1B>; 117def : SysReg<"hpmcounter28", 0xC1C>; 118def : SysReg<"hpmcounter29", 0xC1D>; 119def : SysReg<"hpmcounter30", 0xC1E>; 120def : SysReg<"hpmcounter31", 0xC1F>; 121 122let isRV32Only = 1 in { 123def CYCLEH : SysReg<"cycleh", 0xC80>; 124def TIMEH : SysReg<"timeh", 0xC81>; 125def INSTRETH : SysReg<"instreth", 0xC82>; 126 127def: SysReg<"hpmcounter3h", 0xC83>; 128def: SysReg<"hpmcounter4h", 0xC84>; 129def: SysReg<"hpmcounter5h", 0xC85>; 130def: SysReg<"hpmcounter6h", 0xC86>; 131def: SysReg<"hpmcounter7h", 0xC87>; 132def: SysReg<"hpmcounter8h", 0xC88>; 133def: SysReg<"hpmcounter9h", 0xC89>; 134def: SysReg<"hpmcounter10h", 0xC8A>; 135def: SysReg<"hpmcounter11h", 0xC8B>; 136def: SysReg<"hpmcounter12h", 0xC8C>; 137def: SysReg<"hpmcounter13h", 0xC8D>; 138def: SysReg<"hpmcounter14h", 0xC8E>; 139def: SysReg<"hpmcounter15h", 0xC8F>; 140def: SysReg<"hpmcounter16h", 0xC90>; 141def: SysReg<"hpmcounter17h", 0xC91>; 142def: SysReg<"hpmcounter18h", 0xC92>; 143def: SysReg<"hpmcounter19h", 0xC93>; 144def: SysReg<"hpmcounter20h", 0xC94>; 145def: SysReg<"hpmcounter21h", 0xC95>; 146def: SysReg<"hpmcounter22h", 0xC96>; 147def: SysReg<"hpmcounter23h", 0xC97>; 148def: SysReg<"hpmcounter24h", 0xC98>; 149def: SysReg<"hpmcounter25h", 0xC99>; 150def: SysReg<"hpmcounter26h", 0xC9A>; 151def: SysReg<"hpmcounter27h", 0xC9B>; 152def: SysReg<"hpmcounter28h", 0xC9C>; 153def: SysReg<"hpmcounter29h", 0xC9D>; 154def: SysReg<"hpmcounter30h", 0xC9E>; 155def: SysReg<"hpmcounter31h", 0xC9F>; 156} 157 158//===-------------------------- 159// Supervisor Trap Setup 160//===-------------------------- 161def : SysReg<"sstatus", 0x100>; 162def : SysReg<"sedeleg", 0x102>; 163def : SysReg<"sideleg", 0x103>; 164def : SysReg<"sie", 0x104>; 165def : SysReg<"stvec", 0x105>; 166def : SysReg<"scounteren", 0x106>; 167 168//===-------------------------- 169// Supervisor Trap Handling 170//===-------------------------- 171def : SysReg<"sscratch", 0x140>; 172def : SysReg<"sepc", 0x141>; 173def : SysReg<"scause", 0x142>; 174def : SysReg<"stval", 0x143>; 175def : SysReg<"sip", 0x144>; 176 177//===------------------------------------- 178// Supervisor Protection and Translation 179//===------------------------------------- 180def : SysReg<"satp", 0x180>; 181 182//===----------------------------- 183// Machine Information Registers 184//===----------------------------- 185 186def : SysReg<"mvendorid", 0xF11>; 187def : SysReg<"marchid", 0xF12>; 188def : SysReg<"mimpid", 0xF13>; 189def : SysReg<"mhartid", 0xF14>; 190 191//===----------------------------- 192// Machine Trap Setup 193//===----------------------------- 194def : SysReg<"mstatus", 0x300>; 195def : SysReg<"misa", 0x301>; 196def : SysReg<"medeleg", 0x302>; 197def : SysReg<"mideleg", 0x303>; 198def : SysReg<"mie", 0x304>; 199def : SysReg<"mtvec", 0x305>; 200def : SysReg<"mcounteren", 0x306>; 201 202//===----------------------------- 203// Machine Trap Handling 204//===----------------------------- 205def : SysReg<"mscratch", 0x340>; 206def : SysReg<"mepc", 0x341>; 207def : SysReg<"mcause", 0x342>; 208def : SysReg<"mtval", 0x343>; 209def : SysReg<"mip", 0x344>; 210 211//===---------------------------------- 212// Machine Protection and Translation 213//===---------------------------------- 214def : SysReg<"pmpcfg0", 0x3A0>; 215def : SysReg<"pmpcfg2", 0x3A2>; 216let isRV32Only = 1 in { 217def : SysReg<"pmpcfg1", 0x3A1>; 218def : SysReg<"pmpcfg3", 0x3A3>; 219} 220 221def : SysReg<"pmpaddr0", 0x3B0>; 222def : SysReg<"pmpaddr1", 0x3B1>; 223def : SysReg<"pmpaddr2", 0x3B2>; 224def : SysReg<"pmpaddr3", 0x3B3>; 225def : SysReg<"pmpaddr4", 0x3B4>; 226def : SysReg<"pmpaddr5", 0x3B5>; 227def : SysReg<"pmpaddr6", 0x3B6>; 228def : SysReg<"pmpaddr7", 0x3B7>; 229def : SysReg<"pmpaddr8", 0x3B8>; 230def : SysReg<"pmpaddr9", 0x3B9>; 231def : SysReg<"pmpaddr10", 0x3BA>; 232def : SysReg<"pmpaddr11", 0x3BB>; 233def : SysReg<"pmpaddr12", 0x3BC>; 234def : SysReg<"pmpaddr13", 0x3BD>; 235def : SysReg<"pmpaddr14", 0x3BE>; 236def : SysReg<"pmpaddr15", 0x3BF>; 237 238 239//===-------------------------- 240// Machine Counter and Timers 241//===-------------------------- 242def : SysReg<"mcycle", 0xB00>; 243def : SysReg<"minstret", 0xB02>; 244 245def : SysReg<"mhpmcounter3", 0xB03>; 246def : SysReg<"mhpmcounter4", 0xB04>; 247def : SysReg<"mhpmcounter5", 0xB05>; 248def : SysReg<"mhpmcounter6", 0xB06>; 249def : SysReg<"mhpmcounter7", 0xB07>; 250def : SysReg<"mhpmcounter8", 0xB08>; 251def : SysReg<"mhpmcounter9", 0xB09>; 252def : SysReg<"mhpmcounter10", 0xB0A>; 253def : SysReg<"mhpmcounter11", 0xB0B>; 254def : SysReg<"mhpmcounter12", 0xB0C>; 255def : SysReg<"mhpmcounter13", 0xB0D>; 256def : SysReg<"mhpmcounter14", 0xB0E>; 257def : SysReg<"mhpmcounter15", 0xB0F>; 258def : SysReg<"mhpmcounter16", 0xB10>; 259def : SysReg<"mhpmcounter17", 0xB11>; 260def : SysReg<"mhpmcounter18", 0xB12>; 261def : SysReg<"mhpmcounter19", 0xB13>; 262def : SysReg<"mhpmcounter20", 0xB14>; 263def : SysReg<"mhpmcounter21", 0xB15>; 264def : SysReg<"mhpmcounter22", 0xB16>; 265def : SysReg<"mhpmcounter23", 0xB17>; 266def : SysReg<"mhpmcounter24", 0xB18>; 267def : SysReg<"mhpmcounter25", 0xB19>; 268def : SysReg<"mhpmcounter26", 0xB1A>; 269def : SysReg<"mhpmcounter27", 0xB1B>; 270def : SysReg<"mhpmcounter28", 0xB1C>; 271def : SysReg<"mhpmcounter29", 0xB1D>; 272def : SysReg<"mhpmcounter30", 0xB1E>; 273def : SysReg<"mhpmcounter31", 0xB1F>; 274 275let isRV32Only = 1 in { 276def: SysReg<"mcycleh", 0xB80>; 277def: SysReg<"minstreth", 0xB82>; 278 279def: SysReg<"mhpmcounter3h", 0xB83>; 280def: SysReg<"mhpmcounter4h", 0xB84>; 281def: SysReg<"mhpmcounter5h", 0xB85>; 282def: SysReg<"mhpmcounter6h", 0xB86>; 283def: SysReg<"mhpmcounter7h", 0xB87>; 284def: SysReg<"mhpmcounter8h", 0xB88>; 285def: SysReg<"mhpmcounter9h", 0xB89>; 286def: SysReg<"mhpmcounter10h", 0xB8A>; 287def: SysReg<"mhpmcounter11h", 0xB8B>; 288def: SysReg<"mhpmcounter12h", 0xB8C>; 289def: SysReg<"mhpmcounter13h", 0xB8D>; 290def: SysReg<"mhpmcounter14h", 0xB8E>; 291def: SysReg<"mhpmcounter15h", 0xB8F>; 292def: SysReg<"mhpmcounter16h", 0xB90>; 293def: SysReg<"mhpmcounter17h", 0xB91>; 294def: SysReg<"mhpmcounter18h", 0xB92>; 295def: SysReg<"mhpmcounter19h", 0xB93>; 296def: SysReg<"mhpmcounter20h", 0xB94>; 297def: SysReg<"mhpmcounter21h", 0xB95>; 298def: SysReg<"mhpmcounter22h", 0xB96>; 299def: SysReg<"mhpmcounter23h", 0xB97>; 300def: SysReg<"mhpmcounter24h", 0xB98>; 301def: SysReg<"mhpmcounter25h", 0xB99>; 302def: SysReg<"mhpmcounter26h", 0xB9A>; 303def: SysReg<"mhpmcounter27h", 0xB9B>; 304def: SysReg<"mhpmcounter28h", 0xB9C>; 305def: SysReg<"mhpmcounter29h", 0xB9D>; 306def: SysReg<"mhpmcounter30h", 0xB9E>; 307def: SysReg<"mhpmcounter31h", 0xB9F>; 308} 309 310//===-------------------------- 311// Machine Counter Setup 312//===-------------------------- 313def : SysReg<"mcountinhibit", 0x320>; 314def : SysReg<"mhpmevent3", 0x323>; 315def : SysReg<"mhpmevent4", 0x324>; 316def : SysReg<"mhpmevent5", 0x325>; 317def : SysReg<"mhpmevent6", 0x326>; 318def : SysReg<"mhpmevent7", 0x327>; 319def : SysReg<"mhpmevent8", 0x328>; 320def : SysReg<"mhpmevent9", 0x329>; 321def : SysReg<"mhpmevent10", 0x32A>; 322def : SysReg<"mhpmevent11", 0x32B>; 323def : SysReg<"mhpmevent12", 0x32C>; 324def : SysReg<"mhpmevent13", 0x32D>; 325def : SysReg<"mhpmevent14", 0x32E>; 326def : SysReg<"mhpmevent15", 0x32F>; 327def : SysReg<"mhpmevent16", 0x330>; 328def : SysReg<"mhpmevent17", 0x331>; 329def : SysReg<"mhpmevent18", 0x332>; 330def : SysReg<"mhpmevent19", 0x333>; 331def : SysReg<"mhpmevent20", 0x334>; 332def : SysReg<"mhpmevent21", 0x335>; 333def : SysReg<"mhpmevent22", 0x336>; 334def : SysReg<"mhpmevent23", 0x337>; 335def : SysReg<"mhpmevent24", 0x338>; 336def : SysReg<"mhpmevent25", 0x339>; 337def : SysReg<"mhpmevent26", 0x33A>; 338def : SysReg<"mhpmevent27", 0x33B>; 339def : SysReg<"mhpmevent28", 0x33C>; 340def : SysReg<"mhpmevent29", 0x33D>; 341def : SysReg<"mhpmevent30", 0x33E>; 342def : SysReg<"mhpmevent31", 0x33F>; 343 344//===----------------------------------------------- 345// Debug/ Trace Registers (shared with Debug Mode) 346//===----------------------------------------------- 347def : SysReg<"tselect", 0x7A0>; 348def : SysReg<"tdata1", 0x7A1>; 349def : SysReg<"tdata2", 0x7A2>; 350def : SysReg<"tdata3", 0x7A3>; 351 352//===----------------------------------------------- 353// Debug Mode Registers 354//===----------------------------------------------- 355def : SysReg<"dcsr", 0x7B0>; 356def : SysReg<"dpc", 0x7B1>; 357 358// "dscratch" is an alternative name for "dscratch0" which appeared in earlier 359// drafts of the RISC-V debug spec 360let AltName = "dscratch" in 361def : SysReg<"dscratch0", 0x7B2>; 362def : SysReg<"dscratch1", 0x7B3>; 363 364//===----------------------------------------------- 365// User Vector CSRs 366//===----------------------------------------------- 367def : SysReg<"vstart", 0x008>; 368def : SysReg<"vxsat", 0x009>; 369def : SysReg<"vxrm", 0x00A>; 370def : SysReg<"vl", 0xC20>; 371def : SysReg<"vtype", 0xC21>; 372def : SysReg<"vlenb", 0xC22>; 373