1 /* 2 * ARM GICv3 support - internal interfaces 3 * 4 * Copyright (c) 2012 Linaro Limited 5 * Copyright (c) 2015 Huawei. 6 * Copyright (c) 2015 Samsung Electronics Co., Ltd. 7 * Written by Peter Maydell 8 * Reworked for GICv3 by Shlomo Pongratz and Pavel Fedin 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation, either version 2 of the License, or 13 * (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License along 21 * with this program; if not, see <http://www.gnu.org/licenses/>. 22 */ 23 24 #ifndef QEMU_ARM_GICV3_INTERNAL_H 25 #define QEMU_ARM_GICV3_INTERNAL_H 26 27 #include "hw/registerfields.h" 28 #include "hw/intc/arm_gicv3_common.h" 29 30 /* Distributor registers, as offsets from the distributor base address */ 31 #define GICD_CTLR 0x0000 32 #define GICD_TYPER 0x0004 33 #define GICD_IIDR 0x0008 34 #define GICD_STATUSR 0x0010 35 #define GICD_SETSPI_NSR 0x0040 36 #define GICD_CLRSPI_NSR 0x0048 37 #define GICD_SETSPI_SR 0x0050 38 #define GICD_CLRSPI_SR 0x0058 39 #define GICD_SEIR 0x0068 40 #define GICD_IGROUPR 0x0080 41 #define GICD_ISENABLER 0x0100 42 #define GICD_ICENABLER 0x0180 43 #define GICD_ISPENDR 0x0200 44 #define GICD_ICPENDR 0x0280 45 #define GICD_ISACTIVER 0x0300 46 #define GICD_ICACTIVER 0x0380 47 #define GICD_IPRIORITYR 0x0400 48 #define GICD_ITARGETSR 0x0800 49 #define GICD_ICFGR 0x0C00 50 #define GICD_IGRPMODR 0x0D00 51 #define GICD_NSACR 0x0E00 52 #define GICD_SGIR 0x0F00 53 #define GICD_CPENDSGIR 0x0F10 54 #define GICD_SPENDSGIR 0x0F20 55 #define GICD_IROUTER 0x6000 56 #define GICD_IDREGS 0xFFD0 57 58 /* GICD_CTLR fields */ 59 #define GICD_CTLR_EN_GRP0 (1U << 0) 60 #define GICD_CTLR_EN_GRP1NS (1U << 1) /* GICv3 5.3.20 */ 61 #define GICD_CTLR_EN_GRP1S (1U << 2) 62 #define GICD_CTLR_EN_GRP1_ALL (GICD_CTLR_EN_GRP1NS | GICD_CTLR_EN_GRP1S) 63 /* Bit 4 is ARE if the system doesn't support TrustZone, ARE_S otherwise */ 64 #define GICD_CTLR_ARE (1U << 4) 65 #define GICD_CTLR_ARE_S (1U << 4) 66 #define GICD_CTLR_ARE_NS (1U << 5) 67 #define GICD_CTLR_DS (1U << 6) 68 #define GICD_CTLR_E1NWF (1U << 7) 69 #define GICD_CTLR_RWP (1U << 31) 70 71 #define GICD_TYPER_LPIS_SHIFT 17 72 73 /* 16 bits EventId */ 74 #define GICD_TYPER_IDBITS 0xf 75 76 /* 77 * Redistributor frame offsets from RD_base 78 */ 79 #define GICR_SGI_OFFSET 0x10000 80 81 /* 82 * Redistributor registers, offsets from RD_base 83 */ 84 #define GICR_CTLR 0x0000 85 #define GICR_IIDR 0x0004 86 #define GICR_TYPER 0x0008 87 #define GICR_STATUSR 0x0010 88 #define GICR_WAKER 0x0014 89 #define GICR_SETLPIR 0x0040 90 #define GICR_CLRLPIR 0x0048 91 #define GICR_PROPBASER 0x0070 92 #define GICR_PENDBASER 0x0078 93 #define GICR_INVLPIR 0x00A0 94 #define GICR_INVALLR 0x00B0 95 #define GICR_SYNCR 0x00C0 96 #define GICR_IDREGS 0xFFD0 97 98 /* SGI and PPI Redistributor registers, offsets from RD_base */ 99 #define GICR_IGROUPR0 (GICR_SGI_OFFSET + 0x0080) 100 #define GICR_ISENABLER0 (GICR_SGI_OFFSET + 0x0100) 101 #define GICR_ICENABLER0 (GICR_SGI_OFFSET + 0x0180) 102 #define GICR_ISPENDR0 (GICR_SGI_OFFSET + 0x0200) 103 #define GICR_ICPENDR0 (GICR_SGI_OFFSET + 0x0280) 104 #define GICR_ISACTIVER0 (GICR_SGI_OFFSET + 0x0300) 105 #define GICR_ICACTIVER0 (GICR_SGI_OFFSET + 0x0380) 106 #define GICR_IPRIORITYR (GICR_SGI_OFFSET + 0x0400) 107 #define GICR_ICFGR0 (GICR_SGI_OFFSET + 0x0C00) 108 #define GICR_ICFGR1 (GICR_SGI_OFFSET + 0x0C04) 109 #define GICR_IGRPMODR0 (GICR_SGI_OFFSET + 0x0D00) 110 #define GICR_NSACR (GICR_SGI_OFFSET + 0x0E00) 111 112 #define GICR_CTLR_ENABLE_LPIS (1U << 0) 113 #define GICR_CTLR_CES (1U << 1) 114 #define GICR_CTLR_RWP (1U << 3) 115 #define GICR_CTLR_DPG0 (1U << 24) 116 #define GICR_CTLR_DPG1NS (1U << 25) 117 #define GICR_CTLR_DPG1S (1U << 26) 118 #define GICR_CTLR_UWP (1U << 31) 119 120 #define GICR_TYPER_PLPIS (1U << 0) 121 #define GICR_TYPER_VLPIS (1U << 1) 122 #define GICR_TYPER_DIRECTLPI (1U << 3) 123 #define GICR_TYPER_LAST (1U << 4) 124 #define GICR_TYPER_DPGS (1U << 5) 125 #define GICR_TYPER_PROCNUM (0xFFFFU << 8) 126 #define GICR_TYPER_COMMONLPIAFF (0x3 << 24) 127 #define GICR_TYPER_AFFINITYVALUE (0xFFFFFFFFULL << 32) 128 129 #define GICR_WAKER_ProcessorSleep (1U << 1) 130 #define GICR_WAKER_ChildrenAsleep (1U << 2) 131 132 FIELD(GICR_PROPBASER, IDBITS, 0, 5) 133 FIELD(GICR_PROPBASER, INNERCACHE, 7, 3) 134 FIELD(GICR_PROPBASER, SHAREABILITY, 10, 2) 135 FIELD(GICR_PROPBASER, PHYADDR, 12, 40) 136 FIELD(GICR_PROPBASER, OUTERCACHE, 56, 3) 137 138 FIELD(GICR_PENDBASER, INNERCACHE, 7, 3) 139 FIELD(GICR_PENDBASER, SHAREABILITY, 10, 2) 140 FIELD(GICR_PENDBASER, PHYADDR, 16, 36) 141 FIELD(GICR_PENDBASER, OUTERCACHE, 56, 3) 142 FIELD(GICR_PENDBASER, PTZ, 62, 1) 143 144 #define GICR_PROPBASER_IDBITS_THRESHOLD 0xd 145 146 #define ICC_CTLR_EL1_CBPR (1U << 0) 147 #define ICC_CTLR_EL1_EOIMODE (1U << 1) 148 #define ICC_CTLR_EL1_PMHE (1U << 6) 149 #define ICC_CTLR_EL1_PRIBITS_SHIFT 8 150 #define ICC_CTLR_EL1_PRIBITS_MASK (7U << ICC_CTLR_EL1_PRIBITS_SHIFT) 151 #define ICC_CTLR_EL1_IDBITS_SHIFT 11 152 #define ICC_CTLR_EL1_SEIS (1U << 14) 153 #define ICC_CTLR_EL1_A3V (1U << 15) 154 155 #define ICC_PMR_PRIORITY_MASK 0xff 156 #define ICC_BPR_BINARYPOINT_MASK 0x07 157 #define ICC_IGRPEN_ENABLE 0x01 158 159 #define ICC_CTLR_EL3_CBPR_EL1S (1U << 0) 160 #define ICC_CTLR_EL3_CBPR_EL1NS (1U << 1) 161 #define ICC_CTLR_EL3_EOIMODE_EL3 (1U << 2) 162 #define ICC_CTLR_EL3_EOIMODE_EL1S (1U << 3) 163 #define ICC_CTLR_EL3_EOIMODE_EL1NS (1U << 4) 164 #define ICC_CTLR_EL3_RM (1U << 5) 165 #define ICC_CTLR_EL3_PMHE (1U << 6) 166 #define ICC_CTLR_EL3_PRIBITS_SHIFT 8 167 #define ICC_CTLR_EL3_IDBITS_SHIFT 11 168 #define ICC_CTLR_EL3_SEIS (1U << 14) 169 #define ICC_CTLR_EL3_A3V (1U << 15) 170 #define ICC_CTLR_EL3_NDS (1U << 17) 171 172 #define ICH_VMCR_EL2_VENG0_SHIFT 0 173 #define ICH_VMCR_EL2_VENG0 (1U << ICH_VMCR_EL2_VENG0_SHIFT) 174 #define ICH_VMCR_EL2_VENG1_SHIFT 1 175 #define ICH_VMCR_EL2_VENG1 (1U << ICH_VMCR_EL2_VENG1_SHIFT) 176 #define ICH_VMCR_EL2_VACKCTL (1U << 2) 177 #define ICH_VMCR_EL2_VFIQEN (1U << 3) 178 #define ICH_VMCR_EL2_VCBPR_SHIFT 4 179 #define ICH_VMCR_EL2_VCBPR (1U << ICH_VMCR_EL2_VCBPR_SHIFT) 180 #define ICH_VMCR_EL2_VEOIM_SHIFT 9 181 #define ICH_VMCR_EL2_VEOIM (1U << ICH_VMCR_EL2_VEOIM_SHIFT) 182 #define ICH_VMCR_EL2_VBPR1_SHIFT 18 183 #define ICH_VMCR_EL2_VBPR1_LENGTH 3 184 #define ICH_VMCR_EL2_VBPR1_MASK (0x7U << ICH_VMCR_EL2_VBPR1_SHIFT) 185 #define ICH_VMCR_EL2_VBPR0_SHIFT 21 186 #define ICH_VMCR_EL2_VBPR0_LENGTH 3 187 #define ICH_VMCR_EL2_VBPR0_MASK (0x7U << ICH_VMCR_EL2_VBPR0_SHIFT) 188 #define ICH_VMCR_EL2_VPMR_SHIFT 24 189 #define ICH_VMCR_EL2_VPMR_LENGTH 8 190 #define ICH_VMCR_EL2_VPMR_MASK (0xffU << ICH_VMCR_EL2_VPMR_SHIFT) 191 192 #define ICH_HCR_EL2_EN (1U << 0) 193 #define ICH_HCR_EL2_UIE (1U << 1) 194 #define ICH_HCR_EL2_LRENPIE (1U << 2) 195 #define ICH_HCR_EL2_NPIE (1U << 3) 196 #define ICH_HCR_EL2_VGRP0EIE (1U << 4) 197 #define ICH_HCR_EL2_VGRP0DIE (1U << 5) 198 #define ICH_HCR_EL2_VGRP1EIE (1U << 6) 199 #define ICH_HCR_EL2_VGRP1DIE (1U << 7) 200 #define ICH_HCR_EL2_TC (1U << 10) 201 #define ICH_HCR_EL2_TALL0 (1U << 11) 202 #define ICH_HCR_EL2_TALL1 (1U << 12) 203 #define ICH_HCR_EL2_TSEI (1U << 13) 204 #define ICH_HCR_EL2_TDIR (1U << 14) 205 #define ICH_HCR_EL2_EOICOUNT_SHIFT 27 206 #define ICH_HCR_EL2_EOICOUNT_LENGTH 5 207 #define ICH_HCR_EL2_EOICOUNT_MASK (0x1fU << ICH_HCR_EL2_EOICOUNT_SHIFT) 208 209 #define ICH_LR_EL2_VINTID_SHIFT 0 210 #define ICH_LR_EL2_VINTID_LENGTH 32 211 #define ICH_LR_EL2_VINTID_MASK (0xffffffffULL << ICH_LR_EL2_VINTID_SHIFT) 212 #define ICH_LR_EL2_PINTID_SHIFT 32 213 #define ICH_LR_EL2_PINTID_LENGTH 10 214 #define ICH_LR_EL2_PINTID_MASK (0x3ffULL << ICH_LR_EL2_PINTID_SHIFT) 215 /* Note that EOI shares with the top bit of the pINTID field */ 216 #define ICH_LR_EL2_EOI (1ULL << 41) 217 #define ICH_LR_EL2_PRIORITY_SHIFT 48 218 #define ICH_LR_EL2_PRIORITY_LENGTH 8 219 #define ICH_LR_EL2_PRIORITY_MASK (0xffULL << ICH_LR_EL2_PRIORITY_SHIFT) 220 #define ICH_LR_EL2_GROUP (1ULL << 60) 221 #define ICH_LR_EL2_HW (1ULL << 61) 222 #define ICH_LR_EL2_STATE_SHIFT 62 223 #define ICH_LR_EL2_STATE_LENGTH 2 224 #define ICH_LR_EL2_STATE_MASK (3ULL << ICH_LR_EL2_STATE_SHIFT) 225 /* values for the state field: */ 226 #define ICH_LR_EL2_STATE_INVALID 0 227 #define ICH_LR_EL2_STATE_PENDING 1 228 #define ICH_LR_EL2_STATE_ACTIVE 2 229 #define ICH_LR_EL2_STATE_ACTIVE_PENDING 3 230 #define ICH_LR_EL2_STATE_PENDING_BIT (1ULL << ICH_LR_EL2_STATE_SHIFT) 231 #define ICH_LR_EL2_STATE_ACTIVE_BIT (2ULL << ICH_LR_EL2_STATE_SHIFT) 232 233 #define ICH_MISR_EL2_EOI (1U << 0) 234 #define ICH_MISR_EL2_U (1U << 1) 235 #define ICH_MISR_EL2_LRENP (1U << 2) 236 #define ICH_MISR_EL2_NP (1U << 3) 237 #define ICH_MISR_EL2_VGRP0E (1U << 4) 238 #define ICH_MISR_EL2_VGRP0D (1U << 5) 239 #define ICH_MISR_EL2_VGRP1E (1U << 6) 240 #define ICH_MISR_EL2_VGRP1D (1U << 7) 241 242 #define ICH_VTR_EL2_LISTREGS_SHIFT 0 243 #define ICH_VTR_EL2_TDS (1U << 19) 244 #define ICH_VTR_EL2_NV4 (1U << 20) 245 #define ICH_VTR_EL2_A3V (1U << 21) 246 #define ICH_VTR_EL2_SEIS (1U << 22) 247 #define ICH_VTR_EL2_IDBITS_SHIFT 23 248 #define ICH_VTR_EL2_PREBITS_SHIFT 26 249 #define ICH_VTR_EL2_PRIBITS_SHIFT 29 250 251 /* ITS Registers */ 252 253 FIELD(GITS_BASER, SIZE, 0, 8) 254 FIELD(GITS_BASER, PAGESIZE, 8, 2) 255 FIELD(GITS_BASER, SHAREABILITY, 10, 2) 256 FIELD(GITS_BASER, PHYADDR, 12, 36) 257 FIELD(GITS_BASER, PHYADDRL_64K, 16, 32) 258 FIELD(GITS_BASER, PHYADDRH_64K, 12, 4) 259 FIELD(GITS_BASER, ENTRYSIZE, 48, 5) 260 FIELD(GITS_BASER, OUTERCACHE, 53, 3) 261 FIELD(GITS_BASER, TYPE, 56, 3) 262 FIELD(GITS_BASER, INNERCACHE, 59, 3) 263 FIELD(GITS_BASER, INDIRECT, 62, 1) 264 FIELD(GITS_BASER, VALID, 63, 1) 265 266 FIELD(GITS_CBASER, SIZE, 0, 8) 267 FIELD(GITS_CBASER, SHAREABILITY, 10, 2) 268 FIELD(GITS_CBASER, PHYADDR, 12, 40) 269 FIELD(GITS_CBASER, OUTERCACHE, 53, 3) 270 FIELD(GITS_CBASER, INNERCACHE, 59, 3) 271 FIELD(GITS_CBASER, VALID, 63, 1) 272 273 FIELD(GITS_CREADR, STALLED, 0, 1) 274 FIELD(GITS_CREADR, OFFSET, 5, 15) 275 276 FIELD(GITS_CWRITER, RETRY, 0, 1) 277 FIELD(GITS_CWRITER, OFFSET, 5, 15) 278 279 FIELD(GITS_CTLR, ENABLED, 0, 1) 280 FIELD(GITS_CTLR, QUIESCENT, 31, 1) 281 282 FIELD(GITS_TYPER, PHYSICAL, 0, 1) 283 FIELD(GITS_TYPER, ITT_ENTRY_SIZE, 4, 4) 284 FIELD(GITS_TYPER, IDBITS, 8, 5) 285 FIELD(GITS_TYPER, DEVBITS, 13, 5) 286 FIELD(GITS_TYPER, SEIS, 18, 1) 287 FIELD(GITS_TYPER, PTA, 19, 1) 288 FIELD(GITS_TYPER, CIDBITS, 32, 4) 289 FIELD(GITS_TYPER, CIL, 36, 1) 290 291 #define GITS_IDREGS 0xFFD0 292 293 #define GITS_BASER_RO_MASK (R_GITS_BASER_ENTRYSIZE_MASK | \ 294 R_GITS_BASER_TYPE_MASK) 295 296 #define GITS_BASER_PAGESIZE_4K 0 297 #define GITS_BASER_PAGESIZE_16K 1 298 #define GITS_BASER_PAGESIZE_64K 2 299 300 #define GITS_BASER_TYPE_DEVICE 1ULL 301 #define GITS_BASER_TYPE_COLLECTION 4ULL 302 303 #define GITS_PAGE_SIZE_4K 0x1000 304 #define GITS_PAGE_SIZE_16K 0x4000 305 #define GITS_PAGE_SIZE_64K 0x10000 306 307 #define L1TABLE_ENTRY_SIZE 8 308 309 #define LPI_CTE_ENABLED TABLE_ENTRY_VALID_MASK 310 #define LPI_PRIORITY_MASK 0xfc 311 312 #define GITS_CMDQ_ENTRY_WORDS 4 313 #define GITS_CMDQ_ENTRY_SIZE (GITS_CMDQ_ENTRY_WORDS * sizeof(uint64_t)) 314 315 #define CMD_MASK 0xff 316 317 /* ITS Commands */ 318 #define GITS_CMD_MOVI 0x01 319 #define GITS_CMD_INT 0x03 320 #define GITS_CMD_CLEAR 0x04 321 #define GITS_CMD_SYNC 0x05 322 #define GITS_CMD_MAPD 0x08 323 #define GITS_CMD_MAPC 0x09 324 #define GITS_CMD_MAPTI 0x0A 325 #define GITS_CMD_MAPI 0x0B 326 #define GITS_CMD_INV 0x0C 327 #define GITS_CMD_INVALL 0x0D 328 #define GITS_CMD_MOVALL 0x0E 329 #define GITS_CMD_DISCARD 0x0F 330 331 /* MAPC command fields */ 332 #define ICID_LENGTH 16 333 #define ICID_MASK ((1U << ICID_LENGTH) - 1) 334 FIELD(MAPC, RDBASE, 16, 32) 335 336 #define RDBASE_PROCNUM_LENGTH 16 337 #define RDBASE_PROCNUM_MASK ((1ULL << RDBASE_PROCNUM_LENGTH) - 1) 338 339 /* MAPD command fields */ 340 #define ITTADDR_LENGTH 44 341 #define ITTADDR_SHIFT 8 342 #define ITTADDR_MASK MAKE_64BIT_MASK(ITTADDR_SHIFT, ITTADDR_LENGTH) 343 #define SIZE_MASK 0x1f 344 345 /* MAPI command fields */ 346 #define EVENTID_MASK ((1ULL << 32) - 1) 347 348 /* MAPTI command fields */ 349 #define pINTID_SHIFT 32 350 #define pINTID_MASK MAKE_64BIT_MASK(32, 32) 351 352 #define DEVID_SHIFT 32 353 #define DEVID_MASK MAKE_64BIT_MASK(32, 32) 354 355 #define VALID_SHIFT 63 356 #define CMD_FIELD_VALID_MASK (1ULL << VALID_SHIFT) 357 #define L2_TABLE_VALID_MASK CMD_FIELD_VALID_MASK 358 #define TABLE_ENTRY_VALID_MASK (1ULL << 0) 359 360 /* MOVALL command fields */ 361 FIELD(MOVALL_2, RDBASE1, 16, 36) 362 FIELD(MOVALL_3, RDBASE2, 16, 36) 363 364 /* MOVI command fields */ 365 FIELD(MOVI_0, DEVICEID, 32, 32) 366 FIELD(MOVI_1, EVENTID, 0, 32) 367 FIELD(MOVI_2, ICID, 0, 16) 368 369 /* 370 * 12 bytes Interrupt translation Table Entry size 371 * as per Table 5.3 in GICv3 spec 372 * ITE Lower 8 Bytes 373 * Bits: | 63 ... 48 | 47 ... 32 | 31 ... 26 | 25 ... 2 | 1 | 0 | 374 * Values: | vPEID | ICID | unused | IntNum | IntType | Valid | 375 * ITE Higher 4 Bytes 376 * Bits: | 31 ... 25 | 24 ... 0 | 377 * Values: | unused | Doorbell | 378 * (When Doorbell is unused, as it always is for INTYPE_PHYSICAL, 379 * the value of that field in memory cannot be relied upon -- older 380 * versions of QEMU did not correctly write to that memory.) 381 */ 382 #define ITS_ITT_ENTRY_SIZE 0xC 383 384 FIELD(ITE_L, VALID, 0, 1) 385 FIELD(ITE_L, INTTYPE, 1, 1) 386 FIELD(ITE_L, INTID, 2, 24) 387 FIELD(ITE_L, ICID, 32, 16) 388 FIELD(ITE_L, VPEID, 48, 16) 389 FIELD(ITE_H, DOORBELL, 0, 24) 390 391 /* Possible values for ITE_L INTTYPE */ 392 #define ITE_INTTYPE_VIRTUAL 0 393 #define ITE_INTTYPE_PHYSICAL 1 394 395 /* 16 bits EventId */ 396 #define ITS_IDBITS GICD_TYPER_IDBITS 397 398 /* 16 bits DeviceId */ 399 #define ITS_DEVBITS 0xF 400 401 /* 16 bits CollectionId */ 402 #define ITS_CIDBITS 0xF 403 404 /* 405 * 8 bytes Device Table Entry size 406 * Valid = 1 bit,ITTAddr = 44 bits,Size = 5 bits 407 */ 408 #define GITS_DTE_SIZE (0x8ULL) 409 410 FIELD(DTE, VALID, 0, 1) 411 FIELD(DTE, SIZE, 1, 5) 412 FIELD(DTE, ITTADDR, 6, 44) 413 414 /* 415 * 8 bytes Collection Table Entry size 416 * Valid = 1 bit, RDBase = 16 bits 417 */ 418 #define GITS_CTE_SIZE (0x8ULL) 419 FIELD(CTE, VALID, 0, 1) 420 FIELD(CTE, RDBASE, 1, RDBASE_PROCNUM_LENGTH) 421 422 /* Special interrupt IDs */ 423 #define INTID_SECURE 1020 424 #define INTID_NONSECURE 1021 425 #define INTID_SPURIOUS 1023 426 427 /* Functions internal to the emulated GICv3 */ 428 429 /** 430 * gicv3_intid_is_special: 431 * @intid: interrupt ID 432 * 433 * Return true if @intid is a special interrupt ID (1020 to 434 * 1023 inclusive). This corresponds to the GIC spec pseudocode 435 * IsSpecial() function. 436 */ 437 static inline bool gicv3_intid_is_special(int intid) 438 { 439 return intid >= INTID_SECURE && intid <= INTID_SPURIOUS; 440 } 441 442 /** 443 * gicv3_redist_update: 444 * @cs: GICv3CPUState for this redistributor 445 * 446 * Recalculate the highest priority pending interrupt after a 447 * change to redistributor state, and inform the CPU accordingly. 448 */ 449 void gicv3_redist_update(GICv3CPUState *cs); 450 451 /** 452 * gicv3_update: 453 * @s: GICv3State 454 * @start: first interrupt whose state changed 455 * @len: length of the range of interrupts whose state changed 456 * 457 * Recalculate the highest priority pending interrupts after a 458 * change to the distributor state affecting @len interrupts 459 * starting at @start, and inform the CPUs accordingly. 460 */ 461 void gicv3_update(GICv3State *s, int start, int len); 462 463 /** 464 * gicv3_full_update_noirqset: 465 * @s: GICv3State 466 * 467 * Recalculate the cached information about highest priority 468 * pending interrupts, but don't inform the CPUs. This should be 469 * called after an incoming migration has loaded new state. 470 */ 471 void gicv3_full_update_noirqset(GICv3State *s); 472 473 /** 474 * gicv3_full_update: 475 * @s: GICv3State 476 * 477 * Recalculate the highest priority pending interrupts after 478 * a change that could affect the status of all interrupts, 479 * and inform the CPUs accordingly. 480 */ 481 void gicv3_full_update(GICv3State *s); 482 MemTxResult gicv3_dist_read(void *opaque, hwaddr offset, uint64_t *data, 483 unsigned size, MemTxAttrs attrs); 484 MemTxResult gicv3_dist_write(void *opaque, hwaddr addr, uint64_t data, 485 unsigned size, MemTxAttrs attrs); 486 MemTxResult gicv3_redist_read(void *opaque, hwaddr offset, uint64_t *data, 487 unsigned size, MemTxAttrs attrs); 488 MemTxResult gicv3_redist_write(void *opaque, hwaddr offset, uint64_t data, 489 unsigned size, MemTxAttrs attrs); 490 void gicv3_dist_set_irq(GICv3State *s, int irq, int level); 491 void gicv3_redist_set_irq(GICv3CPUState *cs, int irq, int level); 492 void gicv3_redist_process_lpi(GICv3CPUState *cs, int irq, int level); 493 void gicv3_redist_lpi_pending(GICv3CPUState *cs, int irq, int level); 494 /** 495 * gicv3_redist_update_lpi: 496 * @cs: GICv3CPUState 497 * 498 * Scan the LPI pending table and recalculate the highest priority 499 * pending LPI and also the overall highest priority pending interrupt. 500 */ 501 void gicv3_redist_update_lpi(GICv3CPUState *cs); 502 /** 503 * gicv3_redist_update_lpi_only: 504 * @cs: GICv3CPUState 505 * 506 * Scan the LPI pending table and recalculate cs->hpplpi only, 507 * without calling gicv3_redist_update() to recalculate the overall 508 * highest priority pending interrupt. This should be called after 509 * an incoming migration has loaded new state. 510 */ 511 void gicv3_redist_update_lpi_only(GICv3CPUState *cs); 512 /** 513 * gicv3_redist_mov_lpi: 514 * @src: source redistributor 515 * @dest: destination redistributor 516 * @irq: LPI to update 517 * 518 * Move the pending state of the specified LPI from @src to @dest, 519 * as required by the ITS MOVI command. 520 */ 521 void gicv3_redist_mov_lpi(GICv3CPUState *src, GICv3CPUState *dest, int irq); 522 /** 523 * gicv3_redist_movall_lpis: 524 * @src: source redistributor 525 * @dest: destination redistributor 526 * 527 * Scan the LPI pending table for @src, and for each pending LPI there 528 * mark it as not-pending for @src and pending for @dest, as required 529 * by the ITS MOVALL command. 530 */ 531 void gicv3_redist_movall_lpis(GICv3CPUState *src, GICv3CPUState *dest); 532 533 void gicv3_redist_send_sgi(GICv3CPUState *cs, int grp, int irq, bool ns); 534 void gicv3_init_cpuif(GICv3State *s); 535 536 /** 537 * gicv3_cpuif_update: 538 * @cs: GICv3CPUState for the CPU to update 539 * 540 * Recalculate whether to assert the IRQ or FIQ lines after a change 541 * to the current highest priority pending interrupt, the CPU's 542 * current running priority or the CPU's current exception level or 543 * security state. 544 */ 545 void gicv3_cpuif_update(GICv3CPUState *cs); 546 547 static inline uint32_t gicv3_iidr(void) 548 { 549 /* Return the Implementer Identification Register value 550 * for the emulated GICv3, as reported in GICD_IIDR and GICR_IIDR. 551 * 552 * We claim to be an ARM r0p0 with a zero ProductID. 553 * This is the same as an r0p0 GIC-500. 554 */ 555 return 0x43b; 556 } 557 558 static inline uint32_t gicv3_idreg(int regoffset) 559 { 560 /* Return the value of the CoreSight ID register at the specified 561 * offset from the first ID register (as found in the distributor 562 * and redistributor register banks). 563 * These values indicate an ARM implementation of a GICv3. 564 */ 565 static const uint8_t gicd_ids[] = { 566 0x44, 0x00, 0x00, 0x00, 0x92, 0xB4, 0x3B, 0x00, 0x0D, 0xF0, 0x05, 0xB1 567 }; 568 return gicd_ids[regoffset / 4]; 569 } 570 571 /** 572 * gicv3_irq_group: 573 * 574 * Return the group which this interrupt is configured as (GICV3_G0, 575 * GICV3_G1 or GICV3_G1NS). 576 */ 577 static inline int gicv3_irq_group(GICv3State *s, GICv3CPUState *cs, int irq) 578 { 579 bool grpbit, grpmodbit; 580 581 if (irq < GIC_INTERNAL) { 582 grpbit = extract32(cs->gicr_igroupr0, irq, 1); 583 grpmodbit = extract32(cs->gicr_igrpmodr0, irq, 1); 584 } else { 585 grpbit = gicv3_gicd_group_test(s, irq); 586 grpmodbit = gicv3_gicd_grpmod_test(s, irq); 587 } 588 if (grpbit) { 589 return GICV3_G1NS; 590 } 591 if (s->gicd_ctlr & GICD_CTLR_DS) { 592 return GICV3_G0; 593 } 594 return grpmodbit ? GICV3_G1 : GICV3_G0; 595 } 596 597 /** 598 * gicv3_redist_affid: 599 * 600 * Return the 32-bit affinity ID of the CPU connected to this redistributor 601 */ 602 static inline uint32_t gicv3_redist_affid(GICv3CPUState *cs) 603 { 604 return cs->gicr_typer >> 32; 605 } 606 607 /** 608 * gicv3_cache_target_cpustate: 609 * 610 * Update the cached CPU state corresponding to the target for this interrupt 611 * (which is kept in s->gicd_irouter_target[]). 612 */ 613 static inline void gicv3_cache_target_cpustate(GICv3State *s, int irq) 614 { 615 GICv3CPUState *cs = NULL; 616 int i; 617 uint32_t tgtaff = extract64(s->gicd_irouter[irq], 0, 24) | 618 extract64(s->gicd_irouter[irq], 32, 8) << 24; 619 620 for (i = 0; i < s->num_cpu; i++) { 621 if (s->cpu[i].gicr_typer >> 32 == tgtaff) { 622 cs = &s->cpu[i]; 623 break; 624 } 625 } 626 627 s->gicd_irouter_target[irq] = cs; 628 } 629 630 /** 631 * gicv3_cache_all_target_cpustates: 632 * 633 * Populate the entire cache of CPU state pointers for interrupt targets 634 * (eg after inbound migration or CPU reset) 635 */ 636 static inline void gicv3_cache_all_target_cpustates(GICv3State *s) 637 { 638 int irq; 639 640 for (irq = GIC_INTERNAL; irq < GICV3_MAXIRQ; irq++) { 641 gicv3_cache_target_cpustate(s, irq); 642 } 643 } 644 645 void gicv3_set_gicv3state(CPUState *cpu, GICv3CPUState *s); 646 647 #endif /* QEMU_ARM_GICV3_INTERNAL_H */ 648