1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2013-2015 The FreeBSD Foundation 5 * All rights reserved. 6 * 7 * This software was developed by Konstantin Belousov <kib@FreeBSD.org> 8 * under sponsorship from the FreeBSD Foundation. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $FreeBSD$ 32 */ 33 34 #ifndef __X86_IOMMU_INTEL_REG_H 35 #define __X86_IOMMU_INTEL_REG_H 36 37 #define DMAR_PAGE_SIZE PAGE_SIZE 38 #define DMAR_PAGE_MASK (DMAR_PAGE_SIZE - 1) 39 #define DMAR_PAGE_SHIFT PAGE_SHIFT 40 #define DMAR_NPTEPG (DMAR_PAGE_SIZE / sizeof(dmar_pte_t)) 41 #define DMAR_NPTEPGSHIFT 9 42 #define DMAR_PTEMASK (DMAR_NPTEPG - 1) 43 44 #define IOMMU_PAGE_SIZE DMAR_PAGE_SIZE 45 #define IOMMU_PAGE_MASK DMAR_PAGE_MASK 46 47 typedef struct dmar_root_entry { 48 uint64_t r1; 49 uint64_t r2; 50 } dmar_root_entry_t; 51 #define DMAR_ROOT_R1_P 1 /* Present */ 52 #define DMAR_ROOT_R1_CTP_MASK 0xfffffffffffff000 /* Mask for Context-Entry 53 Table Pointer */ 54 55 #define DMAR_CTX_CNT (DMAR_PAGE_SIZE / sizeof(dmar_root_entry_t)) 56 57 typedef struct dmar_ctx_entry { 58 uint64_t ctx1; 59 uint64_t ctx2; 60 } dmar_ctx_entry_t; 61 #define DMAR_CTX1_P 1 /* Present */ 62 #define DMAR_CTX1_FPD 2 /* Fault Processing Disable */ 63 /* Translation Type: */ 64 #define DMAR_CTX1_T_UNTR 0 /* only Untranslated */ 65 #define DMAR_CTX1_T_TR 4 /* both Untranslated 66 and Translated */ 67 #define DMAR_CTX1_T_PASS 8 /* Pass-Through */ 68 #define DMAR_CTX1_ASR_MASK 0xfffffffffffff000 /* Mask for the Address 69 Space Root */ 70 #define DMAR_CTX2_AW_2LVL 0 /* 2-level page tables */ 71 #define DMAR_CTX2_AW_3LVL 1 /* 3-level page tables */ 72 #define DMAR_CTX2_AW_4LVL 2 /* 4-level page tables */ 73 #define DMAR_CTX2_AW_5LVL 3 /* 5-level page tables */ 74 #define DMAR_CTX2_AW_6LVL 4 /* 6-level page tables */ 75 #define DMAR_CTX2_DID_MASK 0xffff0 76 #define DMAR_CTX2_DID(x) ((x) << 8) /* Domain Identifier */ 77 #define DMAR_CTX2_GET_DID(ctx2) (((ctx2) & DMAR_CTX2_DID_MASK) >> 8) 78 79 typedef struct dmar_pte { 80 uint64_t pte; 81 } dmar_pte_t; 82 #define DMAR_PTE_R 1 /* Read */ 83 #define DMAR_PTE_W (1 << 1) /* Write */ 84 #define DMAR_PTE_SP (1 << 7) /* Super Page */ 85 #define DMAR_PTE_SNP (1 << 11) /* Snoop Behaviour */ 86 #define DMAR_PTE_ADDR_MASK 0xffffffffff000 /* Address Mask */ 87 #define DMAR_PTE_TM (1ULL << 62) /* Transient Mapping */ 88 89 typedef struct dmar_irte { 90 uint64_t irte1; 91 uint64_t irte2; 92 } dmar_irte_t; 93 /* Source Validation Type */ 94 #define DMAR_IRTE2_SVT_NONE (0ULL << (82 - 64)) 95 #define DMAR_IRTE2_SVT_RID (1ULL << (82 - 64)) 96 #define DMAR_IRTE2_SVT_BUS (2ULL << (82 - 64)) 97 /* Source-id Qualifier */ 98 #define DMAR_IRTE2_SQ_RID (0ULL << (80 - 64)) 99 #define DMAR_IRTE2_SQ_RID_N2 (1ULL << (80 - 64)) 100 #define DMAR_IRTE2_SQ_RID_N21 (2ULL << (80 - 64)) 101 #define DMAR_IRTE2_SQ_RID_N210 (3ULL << (80 - 64)) 102 /* Source Identifier */ 103 #define DMAR_IRTE2_SID_RID(x) ((uint64_t)(x)) 104 #define DMAR_IRTE2_SID_BUS(start, end) ((((uint64_t)(start)) << 8) | (end)) 105 /* Destination Id */ 106 #define DMAR_IRTE1_DST_xAPIC(x) (((uint64_t)(x)) << 40) 107 #define DMAR_IRTE1_DST_x2APIC(x) (((uint64_t)(x)) << 32) 108 /* Vector */ 109 #define DMAR_IRTE1_V(x) (((uint64_t)x) << 16) 110 #define DMAR_IRTE1_IM_POSTED (1ULL << 15) /* Posted */ 111 /* Delivery Mode */ 112 #define DMAR_IRTE1_DLM_FM (0ULL << 5) 113 #define DMAR_IRTE1_DLM_LP (1ULL << 5) 114 #define DMAR_IRTE1_DLM_SMI (2ULL << 5) 115 #define DMAR_IRTE1_DLM_NMI (4ULL << 5) 116 #define DMAR_IRTE1_DLM_INIT (5ULL << 5) 117 #define DMAR_IRTE1_DLM_ExtINT (7ULL << 5) 118 /* Trigger Mode */ 119 #define DMAR_IRTE1_TM_EDGE (0ULL << 4) 120 #define DMAR_IRTE1_TM_LEVEL (1ULL << 4) 121 /* Redirection Hint */ 122 #define DMAR_IRTE1_RH_DIRECT (0ULL << 3) 123 #define DMAR_IRTE1_RH_SELECT (1ULL << 3) 124 /* Destination Mode */ 125 #define DMAR_IRTE1_DM_PHYSICAL (0ULL << 2) 126 #define DMAR_IRTE1_DM_LOGICAL (1ULL << 2) 127 #define DMAR_IRTE1_FPD (1ULL << 1) /* Fault Processing Disable */ 128 #define DMAR_IRTE1_P (1ULL) /* Present */ 129 130 /* Version register */ 131 #define DMAR_VER_REG 0 132 #define DMAR_MAJOR_VER(x) (((x) >> 4) & 0xf) 133 #define DMAR_MINOR_VER(x) ((x) & 0xf) 134 135 /* Capabilities register */ 136 #define DMAR_CAP_REG 0x8 137 #define DMAR_CAP_PI (1ULL << 59) /* Posted Interrupts */ 138 #define DMAR_CAP_FL1GP (1ULL << 56) /* First Level 1GByte Page */ 139 #define DMAR_CAP_DRD (1ULL << 55) /* DMA Read Draining */ 140 #define DMAR_CAP_DWD (1ULL << 54) /* DMA Write Draining */ 141 #define DMAR_CAP_MAMV(x) ((u_int)(((x) >> 48) & 0x3f)) 142 /* Maximum Address Mask */ 143 #define DMAR_CAP_NFR(x) ((u_int)(((x) >> 40) & 0xff) + 1) 144 /* Num of Fault-recording regs */ 145 #define DMAR_CAP_PSI (1ULL << 39) /* Page Selective Invalidation */ 146 #define DMAR_CAP_SPS(x) ((u_int)(((x) >> 34) & 0xf)) /* Super-Page Support */ 147 #define DMAR_CAP_SPS_2M 0x1 148 #define DMAR_CAP_SPS_1G 0x2 149 #define DMAR_CAP_SPS_512G 0x4 150 #define DMAR_CAP_SPS_1T 0x8 151 #define DMAR_CAP_FRO(x) ((u_int)(((x) >> 24) & 0x1ff)) 152 /* Fault-recording reg offset */ 153 #define DMAR_CAP_ISOCH (1 << 23) /* Isochrony */ 154 #define DMAR_CAP_ZLR (1 << 22) /* Zero-length reads */ 155 #define DMAR_CAP_MGAW(x) ((u_int)(((x) >> 16) & 0x3f)) 156 /* Max Guest Address Width */ 157 #define DMAR_CAP_SAGAW(x) ((u_int)(((x) >> 8) & 0x1f)) 158 /* Adjusted Guest Address Width */ 159 #define DMAR_CAP_SAGAW_2LVL 0x01 160 #define DMAR_CAP_SAGAW_3LVL 0x02 161 #define DMAR_CAP_SAGAW_4LVL 0x04 162 #define DMAR_CAP_SAGAW_5LVL 0x08 163 #define DMAR_CAP_SAGAW_6LVL 0x10 164 #define DMAR_CAP_CM (1 << 7) /* Caching mode */ 165 #define DMAR_CAP_PHMR (1 << 6) /* Protected High-mem Region */ 166 #define DMAR_CAP_PLMR (1 << 5) /* Protected Low-mem Region */ 167 #define DMAR_CAP_RWBF (1 << 4) /* Required Write-Buffer Flushing */ 168 #define DMAR_CAP_AFL (1 << 3) /* Advanced Fault Logging */ 169 #define DMAR_CAP_ND(x) ((u_int)((x) & 0x3)) /* Number of domains */ 170 171 /* Extended Capabilities register */ 172 #define DMAR_ECAP_REG 0x10 173 #define DMAR_ECAP_PSS(x) (((x) >> 35) & 0xf) /* PASID Size Supported */ 174 #define DMAR_ECAP_EAFS (1ULL << 34) /* Extended Accessed Flag */ 175 #define DMAR_ECAP_NWFS (1ULL << 33) /* No Write Flag */ 176 #define DMAR_ECAP_SRS (1ULL << 31) /* Supervisor Request */ 177 #define DMAR_ECAP_ERS (1ULL << 30) /* Execute Request */ 178 #define DMAR_ECAP_PRS (1ULL << 29) /* Page Request */ 179 #define DMAR_ECAP_PASID (1ULL << 28) /* Process Address Space Id */ 180 #define DMAR_ECAP_DIS (1ULL << 27) /* Deferred Invalidate */ 181 #define DMAR_ECAP_NEST (1ULL << 26) /* Nested Translation */ 182 #define DMAR_ECAP_MTS (1ULL << 25) /* Memory Type */ 183 #define DMAR_ECAP_ECS (1ULL << 24) /* Extended Context */ 184 #define DMAR_ECAP_MHMV(x) ((u_int)(((x) >> 20) & 0xf)) 185 /* Maximum Handle Mask Value */ 186 #define DMAR_ECAP_IRO(x) ((u_int)(((x) >> 8) & 0x3ff)) 187 /* IOTLB Register Offset */ 188 #define DMAR_ECAP_SC (1 << 7) /* Snoop Control */ 189 #define DMAR_ECAP_PT (1 << 6) /* Pass Through */ 190 #define DMAR_ECAP_EIM (1 << 4) /* Extended Interrupt Mode (x2APIC) */ 191 #define DMAR_ECAP_IR (1 << 3) /* Interrupt Remapping */ 192 #define DMAR_ECAP_DI (1 << 2) /* Device IOTLB */ 193 #define DMAR_ECAP_QI (1 << 1) /* Queued Invalidation */ 194 #define DMAR_ECAP_C (1 << 0) /* Coherency */ 195 196 /* Global Command register */ 197 #define DMAR_GCMD_REG 0x18 198 #define DMAR_GCMD_TE (1U << 31) /* Translation Enable */ 199 #define DMAR_GCMD_SRTP (1 << 30) /* Set Root Table Pointer */ 200 #define DMAR_GCMD_SFL (1 << 29) /* Set Fault Log */ 201 #define DMAR_GCMD_EAFL (1 << 28) /* Enable Advanced Fault Logging */ 202 #define DMAR_GCMD_WBF (1 << 27) /* Write Buffer Flush */ 203 #define DMAR_GCMD_QIE (1 << 26) /* Queued Invalidation Enable */ 204 #define DMAR_GCMD_IRE (1 << 25) /* Interrupt Remapping Enable */ 205 #define DMAR_GCMD_SIRTP (1 << 24) /* Set Interrupt Remap Table Pointer */ 206 #define DMAR_GCMD_CFI (1 << 23) /* Compatibility Format Interrupt */ 207 208 /* Global Status register */ 209 #define DMAR_GSTS_REG 0x1c 210 #define DMAR_GSTS_TES (1U << 31) /* Translation Enable Status */ 211 #define DMAR_GSTS_RTPS (1 << 30) /* Root Table Pointer Status */ 212 #define DMAR_GSTS_FLS (1 << 29) /* Fault Log Status */ 213 #define DMAR_GSTS_AFLS (1 << 28) /* Advanced Fault Logging Status */ 214 #define DMAR_GSTS_WBFS (1 << 27) /* Write Buffer Flush Status */ 215 #define DMAR_GSTS_QIES (1 << 26) /* Queued Invalidation Enable Status */ 216 #define DMAR_GSTS_IRES (1 << 25) /* Interrupt Remapping Enable Status */ 217 #define DMAR_GSTS_IRTPS (1 << 24) /* Interrupt Remapping Table 218 Pointer Status */ 219 #define DMAR_GSTS_CFIS (1 << 23) /* Compatibility Format 220 Interrupt Status */ 221 222 /* Root-Entry Table Address register */ 223 #define DMAR_RTADDR_REG 0x20 224 #define DMAR_RTADDR_RTT (1 << 11) /* Root Table Type */ 225 #define DMAR_RTADDR_RTA_MASK 0xfffffffffffff000 226 227 /* Context Command register */ 228 #define DMAR_CCMD_REG 0x28 229 #define DMAR_CCMD_ICC (1ULL << 63) /* Invalidate Context-Cache */ 230 #define DMAR_CCMD_ICC32 (1U << 31) 231 #define DMAR_CCMD_CIRG_MASK (0x3ULL << 61) /* Context Invalidation 232 Request Granularity */ 233 #define DMAR_CCMD_CIRG_GLOB (0x1ULL << 61) /* Global */ 234 #define DMAR_CCMD_CIRG_DOM (0x2ULL << 61) /* Domain */ 235 #define DMAR_CCMD_CIRG_DEV (0x3ULL << 61) /* Device */ 236 #define DMAR_CCMD_CAIG(x) (((x) >> 59) & 0x3) /* Context Actual 237 Invalidation Granularity */ 238 #define DMAR_CCMD_CAIG_GLOB 0x1 /* Global */ 239 #define DMAR_CCMD_CAIG_DOM 0x2 /* Domain */ 240 #define DMAR_CCMD_CAIG_DEV 0x3 /* Device */ 241 #define DMAR_CCMD_FM (0x3UUL << 32) /* Function Mask */ 242 #define DMAR_CCMD_SID(x) (((x) & 0xffff) << 16) /* Source-ID */ 243 #define DMAR_CCMD_DID(x) ((x) & 0xffff) /* Domain-ID */ 244 245 /* Invalidate Address register */ 246 #define DMAR_IVA_REG_OFF 0 247 #define DMAR_IVA_IH (1 << 6) /* Invalidation Hint */ 248 #define DMAR_IVA_AM(x) ((x) & 0x1f) /* Address Mask */ 249 #define DMAR_IVA_ADDR(x) ((x) & ~0xfffULL) /* Address */ 250 251 /* IOTLB Invalidate register */ 252 #define DMAR_IOTLB_REG_OFF 0x8 253 #define DMAR_IOTLB_IVT (1ULL << 63) /* Invalidate IOTLB */ 254 #define DMAR_IOTLB_IVT32 (1U << 31) 255 #define DMAR_IOTLB_IIRG_MASK (0x3ULL << 60) /* Invalidation Request 256 Granularity */ 257 #define DMAR_IOTLB_IIRG_GLB (0x1ULL << 60) /* Global */ 258 #define DMAR_IOTLB_IIRG_DOM (0x2ULL << 60) /* Domain-selective */ 259 #define DMAR_IOTLB_IIRG_PAGE (0x3ULL << 60) /* Page-selective */ 260 #define DMAR_IOTLB_IAIG_MASK (0x3ULL << 57) /* Actual Invalidation 261 Granularity */ 262 #define DMAR_IOTLB_IAIG_INVLD 0 /* Hw detected error */ 263 #define DMAR_IOTLB_IAIG_GLB (0x1ULL << 57) /* Global */ 264 #define DMAR_IOTLB_IAIG_DOM (0x2ULL << 57) /* Domain-selective */ 265 #define DMAR_IOTLB_IAIG_PAGE (0x3ULL << 57) /* Page-selective */ 266 #define DMAR_IOTLB_DR (0x1ULL << 49) /* Drain Reads */ 267 #define DMAR_IOTLB_DW (0x1ULL << 48) /* Drain Writes */ 268 #define DMAR_IOTLB_DID(x) (((uint64_t)(x) & 0xffff) << 32) /* Domain Id */ 269 270 /* Fault Status register */ 271 #define DMAR_FSTS_REG 0x34 272 #define DMAR_FSTS_FRI(x) (((x) >> 8) & 0xff) /* Fault Record Index */ 273 #define DMAR_FSTS_ITE (1 << 6) /* Invalidation Time-out */ 274 #define DMAR_FSTS_ICE (1 << 5) /* Invalidation Completion */ 275 #define DMAR_FSTS_IQE (1 << 4) /* Invalidation Queue */ 276 #define DMAR_FSTS_APF (1 << 3) /* Advanced Pending Fault */ 277 #define DMAR_FSTS_AFO (1 << 2) /* Advanced Fault Overflow */ 278 #define DMAR_FSTS_PPF (1 << 1) /* Primary Pending Fault */ 279 #define DMAR_FSTS_PFO 1 /* Fault Overflow */ 280 281 /* Fault Event Control register */ 282 #define DMAR_FECTL_REG 0x38 283 #define DMAR_FECTL_IM (1U << 31) /* Interrupt Mask */ 284 #define DMAR_FECTL_IP (1 << 30) /* Interrupt Pending */ 285 286 /* Fault Event Data register */ 287 #define DMAR_FEDATA_REG 0x3c 288 289 /* Fault Event Address register */ 290 #define DMAR_FEADDR_REG 0x40 291 292 /* Fault Event Upper Address register */ 293 #define DMAR_FEUADDR_REG 0x44 294 295 /* Advanced Fault Log register */ 296 #define DMAR_AFLOG_REG 0x58 297 298 /* Fault Recording Register, also usable for Advanced Fault Log records */ 299 #define DMAR_FRCD2_F (1ULL << 63) /* Fault */ 300 #define DMAR_FRCD2_F32 (1U << 31) 301 #define DMAR_FRCD2_T(x) ((int)((x >> 62) & 1)) /* Type */ 302 #define DMAR_FRCD2_T_W 0 /* Write request */ 303 #define DMAR_FRCD2_T_R 1 /* Read or AtomicOp */ 304 #define DMAR_FRCD2_AT(x) ((int)((x >> 60) & 0x3)) /* Address Type */ 305 #define DMAR_FRCD2_FR(x) ((int)((x >> 32) & 0xff)) /* Fault Reason */ 306 #define DMAR_FRCD2_SID(x) ((int)(x & 0xffff)) /* Source Identifier */ 307 #define DMAR_FRCS1_FI_MASK 0xffffffffff000 /* Fault Info, Address Mask */ 308 309 /* Protected Memory Enable register */ 310 #define DMAR_PMEN_REG 0x64 311 #define DMAR_PMEN_EPM (1U << 31) /* Enable Protected Memory */ 312 #define DMAR_PMEN_PRS 1 /* Protected Region Status */ 313 314 /* Protected Low-Memory Base register */ 315 #define DMAR_PLMBASE_REG 0x68 316 317 /* Protected Low-Memory Limit register */ 318 #define DMAR_PLMLIMIT_REG 0x6c 319 320 /* Protected High-Memory Base register */ 321 #define DMAR_PHMBASE_REG 0x70 322 323 /* Protected High-Memory Limit register */ 324 #define DMAR_PHMLIMIT_REG 0x78 325 326 /* Queued Invalidation Descriptors */ 327 #define DMAR_IQ_DESCR_SZ_SHIFT 4 /* Shift for descriptor count 328 to ring offset */ 329 #define DMAR_IQ_DESCR_SZ (1 << DMAR_IQ_DESCR_SZ_SHIFT) 330 /* Descriptor size */ 331 332 /* Context-cache Invalidate Descriptor */ 333 #define DMAR_IQ_DESCR_CTX_INV 0x1 334 #define DMAR_IQ_DESCR_CTX_GLOB (0x1 << 4) /* Granularity: Global */ 335 #define DMAR_IQ_DESCR_CTX_DOM (0x2 << 4) /* Granularity: Domain */ 336 #define DMAR_IQ_DESCR_CTX_DEV (0x3 << 4) /* Granularity: Device */ 337 #define DMAR_IQ_DESCR_CTX_DID(x) (((uint32_t)(x)) << 16) /* Domain Id */ 338 #define DMAR_IQ_DESCR_CTX_SRC(x) (((uint64_t)(x)) << 32) /* Source Id */ 339 #define DMAR_IQ_DESCR_CTX_FM(x) (((uint64_t)(x)) << 48) /* Function Mask */ 340 341 /* IOTLB Invalidate Descriptor */ 342 #define DMAR_IQ_DESCR_IOTLB_INV 0x2 343 #define DMAR_IQ_DESCR_IOTLB_GLOB (0x1 << 4) /* Granularity: Global */ 344 #define DMAR_IQ_DESCR_IOTLB_DOM (0x2 << 4) /* Granularity: Domain */ 345 #define DMAR_IQ_DESCR_IOTLB_PAGE (0x3 << 4) /* Granularity: Page */ 346 #define DMAR_IQ_DESCR_IOTLB_DW (1 << 6) /* Drain Writes */ 347 #define DMAR_IQ_DESCR_IOTLB_DR (1 << 7) /* Drain Reads */ 348 #define DMAR_IQ_DESCR_IOTLB_DID(x) (((uint32_t)(x)) << 16) /* Domain Id */ 349 350 /* Device-TLB Invalidate Descriptor */ 351 #define DMAR_IQ_DESCR_DTLB_INV 0x3 352 353 /* Invalidate Interrupt Entry Cache */ 354 #define DMAR_IQ_DESCR_IEC_INV 0x4 355 #define DMAR_IQ_DESCR_IEC_IDX (1 << 4) /* Index-Selective Invalidation */ 356 #define DMAR_IQ_DESCR_IEC_IIDX(x) (((uint64_t)x) << 32) /* Interrupt Index */ 357 #define DMAR_IQ_DESCR_IEC_IM(x) ((x) << 27) /* Index Mask */ 358 359 /* Invalidation Wait Descriptor */ 360 #define DMAR_IQ_DESCR_WAIT_ID 0x5 361 #define DMAR_IQ_DESCR_WAIT_IF (1 << 4) /* Interrupt Flag */ 362 #define DMAR_IQ_DESCR_WAIT_SW (1 << 5) /* Status Write */ 363 #define DMAR_IQ_DESCR_WAIT_FN (1 << 6) /* Fence */ 364 #define DMAR_IQ_DESCR_WAIT_SD(x) (((uint64_t)(x)) << 32) /* Status Data */ 365 366 /* Extended IOTLB Invalidate Descriptor */ 367 #define DMAR_IQ_DESCR_EIOTLB_INV 0x6 368 369 /* PASID-Cache Invalidate Descriptor */ 370 #define DMAR_IQ_DESCR_PASIDC_INV 0x7 371 372 /* Extended Device-TLB Invalidate Descriptor */ 373 #define DMAR_IQ_DESCR_EDTLB_INV 0x8 374 375 /* Invalidation Queue Head register */ 376 #define DMAR_IQH_REG 0x80 377 #define DMAR_IQH_MASK 0x7fff0 /* Next cmd index mask */ 378 379 /* Invalidation Queue Tail register */ 380 #define DMAR_IQT_REG 0x88 381 #define DMAR_IQT_MASK 0x7fff0 382 383 /* Invalidation Queue Address register */ 384 #define DMAR_IQA_REG 0x90 385 #define DMAR_IQA_IQA_MASK 0xfffffffffffff000 /* Invalidation Queue 386 Base Address mask */ 387 #define DMAR_IQA_QS_MASK 0x7 /* Queue Size in pages */ 388 #define DMAR_IQA_QS_MAX 0x7 /* Max Queue size */ 389 #define DMAR_IQA_QS_DEF 3 390 391 /* Invalidation Completion Status register */ 392 #define DMAR_ICS_REG 0x9c 393 #define DMAR_ICS_IWC 1 /* Invalidation Wait 394 Descriptor Complete */ 395 396 /* Invalidation Event Control register */ 397 #define DMAR_IECTL_REG 0xa0 398 #define DMAR_IECTL_IM (1U << 31) /* Interrupt Mask */ 399 #define DMAR_IECTL_IP (1 << 30) /* Interrupt Pending */ 400 401 /* Invalidation Event Data register */ 402 #define DMAR_IEDATA_REG 0xa4 403 404 /* Invalidation Event Address register */ 405 #define DMAR_IEADDR_REG 0xa8 406 407 /* Invalidation Event Upper Address register */ 408 #define DMAR_IEUADDR_REG 0xac 409 410 /* Interrupt Remapping Table Address register */ 411 #define DMAR_IRTA_REG 0xb8 412 #define DMAR_IRTA_EIME (1 << 11) /* Extended Interrupt Mode 413 Enable */ 414 #define DMAR_IRTA_S_MASK 0xf /* Size Mask */ 415 416 #endif 417