1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_X86_APICDEF_H 3 #define _ASM_X86_APICDEF_H 4 5 /* 6 * Constants for various Intel APICs. (local APIC, IOAPIC, etc.) 7 * 8 * Alan Cox <Alan.Cox@linux.org>, 1995. 9 * Ingo Molnar <mingo@redhat.com>, 1999, 2000 10 */ 11 12 #define IO_APIC_DEFAULT_PHYS_BASE 0xfec00000 13 #define APIC_DEFAULT_PHYS_BASE 0xfee00000 14 15 /* 16 * This is the IO-APIC register space as specified 17 * by Intel docs: 18 */ 19 #define IO_APIC_SLOT_SIZE 1024 20 21 #define APIC_ID 0x20 22 23 #define APIC_LVR 0x30 24 #define APIC_LVR_MASK 0xFF00FF 25 #define APIC_LVR_DIRECTED_EOI (1 << 24) 26 #define GET_APIC_VERSION(x) ((x) & 0xFFu) 27 #define GET_APIC_MAXLVT(x) (((x) >> 16) & 0xFFu) 28 #ifdef CONFIG_X86_32 29 # define APIC_INTEGRATED(x) ((x) & 0xF0u) 30 #else 31 # define APIC_INTEGRATED(x) (1) 32 #endif 33 #define APIC_XAPIC(x) ((x) >= 0x14) 34 #define APIC_EXT_SPACE(x) ((x) & 0x80000000) 35 #define APIC_TASKPRI 0x80 36 #define APIC_TPRI_MASK 0xFFu 37 #define APIC_ARBPRI 0x90 38 #define APIC_ARBPRI_MASK 0xFFu 39 #define APIC_PROCPRI 0xA0 40 #define APIC_EOI 0xB0 41 #define APIC_EOI_ACK 0x0 /* Docs say 0 for future compat. */ 42 #define APIC_RRR 0xC0 43 #define APIC_LDR 0xD0 44 #define APIC_LDR_MASK (0xFFu << 24) 45 #define GET_APIC_LOGICAL_ID(x) (((x) >> 24) & 0xFFu) 46 #define SET_APIC_LOGICAL_ID(x) (((x) << 24)) 47 #define APIC_ALL_CPUS 0xFFu 48 #define APIC_DFR 0xE0 49 #define APIC_DFR_CLUSTER 0x0FFFFFFFul 50 #define APIC_DFR_FLAT 0xFFFFFFFFul 51 #define APIC_SPIV 0xF0 52 #define APIC_SPIV_DIRECTED_EOI (1 << 12) 53 #define APIC_SPIV_FOCUS_DISABLED (1 << 9) 54 #define APIC_SPIV_APIC_ENABLED (1 << 8) 55 #define APIC_ISR 0x100 56 #define APIC_ISR_NR 0x8 /* Number of 32 bit ISR registers. */ 57 #define APIC_TMR 0x180 58 #define APIC_IRR 0x200 59 #define APIC_ESR 0x280 60 #define APIC_ESR_SEND_CS 0x00001 61 #define APIC_ESR_RECV_CS 0x00002 62 #define APIC_ESR_SEND_ACC 0x00004 63 #define APIC_ESR_RECV_ACC 0x00008 64 #define APIC_ESR_SENDILL 0x00020 65 #define APIC_ESR_RECVILL 0x00040 66 #define APIC_ESR_ILLREGA 0x00080 67 #define APIC_LVTCMCI 0x2f0 68 #define APIC_ICR 0x300 69 #define APIC_DEST_SELF 0x40000 70 #define APIC_DEST_ALLINC 0x80000 71 #define APIC_DEST_ALLBUT 0xC0000 72 #define APIC_ICR_RR_MASK 0x30000 73 #define APIC_ICR_RR_INVALID 0x00000 74 #define APIC_ICR_RR_INPROG 0x10000 75 #define APIC_ICR_RR_VALID 0x20000 76 #define APIC_INT_LEVELTRIG 0x08000 77 #define APIC_INT_ASSERT 0x04000 78 #define APIC_ICR_BUSY 0x01000 79 #define APIC_DEST_LOGICAL 0x00800 80 #define APIC_DEST_PHYSICAL 0x00000 81 #define APIC_DM_FIXED 0x00000 82 #define APIC_DM_FIXED_MASK 0x00700 83 #define APIC_DM_LOWEST 0x00100 84 #define APIC_DM_SMI 0x00200 85 #define APIC_DM_REMRD 0x00300 86 #define APIC_DM_NMI 0x00400 87 #define APIC_DM_INIT 0x00500 88 #define APIC_DM_STARTUP 0x00600 89 #define APIC_DM_EXTINT 0x00700 90 #define APIC_VECTOR_MASK 0x000FF 91 #define APIC_ICR2 0x310 92 #define GET_XAPIC_DEST_FIELD(x) (((x) >> 24) & 0xFF) 93 #define SET_XAPIC_DEST_FIELD(x) ((x) << 24) 94 #define APIC_LVTT 0x320 95 #define APIC_LVTTHMR 0x330 96 #define APIC_LVTPC 0x340 97 #define APIC_LVT0 0x350 98 #define APIC_LVT_TIMER_ONESHOT (0 << 17) 99 #define APIC_LVT_TIMER_PERIODIC (1 << 17) 100 #define APIC_LVT_TIMER_TSCDEADLINE (2 << 17) 101 #define APIC_LVT_MASKED (1 << 16) 102 #define APIC_LVT_LEVEL_TRIGGER (1 << 15) 103 #define APIC_LVT_REMOTE_IRR (1 << 14) 104 #define APIC_INPUT_POLARITY (1 << 13) 105 #define APIC_SEND_PENDING (1 << 12) 106 #define APIC_MODE_MASK 0x700 107 #define GET_APIC_DELIVERY_MODE(x) (((x) >> 8) & 0x7) 108 #define SET_APIC_DELIVERY_MODE(x, y) (((x) & ~0x700) | ((y) << 8)) 109 #define APIC_MODE_FIXED 0x0 110 #define APIC_MODE_NMI 0x4 111 #define APIC_MODE_EXTINT 0x7 112 #define APIC_LVT1 0x360 113 #define APIC_LVTERR 0x370 114 #define APIC_TMICT 0x380 115 #define APIC_TMCCT 0x390 116 #define APIC_TDCR 0x3E0 117 #define APIC_SELF_IPI 0x3F0 118 #define APIC_TDR_DIV_TMBASE (1 << 2) 119 #define APIC_TDR_DIV_1 0xB 120 #define APIC_TDR_DIV_2 0x0 121 #define APIC_TDR_DIV_4 0x1 122 #define APIC_TDR_DIV_8 0x2 123 #define APIC_TDR_DIV_16 0x3 124 #define APIC_TDR_DIV_32 0x8 125 #define APIC_TDR_DIV_64 0x9 126 #define APIC_TDR_DIV_128 0xA 127 #define APIC_EFEAT 0x400 128 #define APIC_ECTRL 0x410 129 #define APIC_EILVTn(n) (0x500 + 0x10 * n) 130 #define APIC_EILVT_NR_AMD_K8 1 /* # of extended interrupts */ 131 #define APIC_EILVT_NR_AMD_10H 4 132 #define APIC_EILVT_NR_MAX APIC_EILVT_NR_AMD_10H 133 #define APIC_EILVT_LVTOFF(x) (((x) >> 4) & 0xF) 134 #define APIC_EILVT_MSG_FIX 0x0 135 #define APIC_EILVT_MSG_SMI 0x2 136 #define APIC_EILVT_MSG_NMI 0x4 137 #define APIC_EILVT_MSG_EXT 0x7 138 #define APIC_EILVT_MASKED (1 << 16) 139 140 #define APIC_BASE (fix_to_virt(FIX_APIC_BASE)) 141 #define APIC_BASE_MSR 0x800 142 #define XAPIC_ENABLE (1UL << 11) 143 #define X2APIC_ENABLE (1UL << 10) 144 145 #ifdef CONFIG_X86_32 146 # define MAX_IO_APICS 64 147 # define MAX_LOCAL_APIC 256 148 #else 149 # define MAX_IO_APICS 128 150 # define MAX_LOCAL_APIC 32768 151 #endif 152 153 /* 154 * All x86-64 systems are xAPIC compatible. 155 * In the following, "apicid" is a physical APIC ID. 156 */ 157 #define XAPIC_DEST_CPUS_SHIFT 4 158 #define XAPIC_DEST_CPUS_MASK ((1u << XAPIC_DEST_CPUS_SHIFT) - 1) 159 #define XAPIC_DEST_CLUSTER_MASK (XAPIC_DEST_CPUS_MASK << XAPIC_DEST_CPUS_SHIFT) 160 #define APIC_CLUSTER(apicid) ((apicid) & XAPIC_DEST_CLUSTER_MASK) 161 #define APIC_CLUSTERID(apicid) (APIC_CLUSTER(apicid) >> XAPIC_DEST_CPUS_SHIFT) 162 #define APIC_CPUID(apicid) ((apicid) & XAPIC_DEST_CPUS_MASK) 163 #define NUM_APIC_CLUSTERS ((BAD_APICID + 1) >> XAPIC_DEST_CPUS_SHIFT) 164 165 /* 166 * the local APIC register structure, memory mapped. Not terribly well 167 * tested, but we might eventually use this one in the future - the 168 * problem why we cannot use it right now is the P5 APIC, it has an 169 * errata which cannot take 8-bit reads and writes, only 32-bit ones ... 170 */ 171 #define u32 unsigned int 172 173 struct local_apic { 174 175 /*000*/ struct { u32 __reserved[4]; } __reserved_01; 176 177 /*010*/ struct { u32 __reserved[4]; } __reserved_02; 178 179 /*020*/ struct { /* APIC ID Register */ 180 u32 __reserved_1 : 24, 181 phys_apic_id : 4, 182 __reserved_2 : 4; 183 u32 __reserved[3]; 184 } id; 185 186 /*030*/ const 187 struct { /* APIC Version Register */ 188 u32 version : 8, 189 __reserved_1 : 8, 190 max_lvt : 8, 191 __reserved_2 : 8; 192 u32 __reserved[3]; 193 } version; 194 195 /*040*/ struct { u32 __reserved[4]; } __reserved_03; 196 197 /*050*/ struct { u32 __reserved[4]; } __reserved_04; 198 199 /*060*/ struct { u32 __reserved[4]; } __reserved_05; 200 201 /*070*/ struct { u32 __reserved[4]; } __reserved_06; 202 203 /*080*/ struct { /* Task Priority Register */ 204 u32 priority : 8, 205 __reserved_1 : 24; 206 u32 __reserved_2[3]; 207 } tpr; 208 209 /*090*/ const 210 struct { /* Arbitration Priority Register */ 211 u32 priority : 8, 212 __reserved_1 : 24; 213 u32 __reserved_2[3]; 214 } apr; 215 216 /*0A0*/ const 217 struct { /* Processor Priority Register */ 218 u32 priority : 8, 219 __reserved_1 : 24; 220 u32 __reserved_2[3]; 221 } ppr; 222 223 /*0B0*/ struct { /* End Of Interrupt Register */ 224 u32 eoi; 225 u32 __reserved[3]; 226 } eoi; 227 228 /*0C0*/ struct { u32 __reserved[4]; } __reserved_07; 229 230 /*0D0*/ struct { /* Logical Destination Register */ 231 u32 __reserved_1 : 24, 232 logical_dest : 8; 233 u32 __reserved_2[3]; 234 } ldr; 235 236 /*0E0*/ struct { /* Destination Format Register */ 237 u32 __reserved_1 : 28, 238 model : 4; 239 u32 __reserved_2[3]; 240 } dfr; 241 242 /*0F0*/ struct { /* Spurious Interrupt Vector Register */ 243 u32 spurious_vector : 8, 244 apic_enabled : 1, 245 focus_cpu : 1, 246 __reserved_2 : 22; 247 u32 __reserved_3[3]; 248 } svr; 249 250 /*100*/ struct { /* In Service Register */ 251 /*170*/ u32 bitfield; 252 u32 __reserved[3]; 253 } isr [8]; 254 255 /*180*/ struct { /* Trigger Mode Register */ 256 /*1F0*/ u32 bitfield; 257 u32 __reserved[3]; 258 } tmr [8]; 259 260 /*200*/ struct { /* Interrupt Request Register */ 261 /*270*/ u32 bitfield; 262 u32 __reserved[3]; 263 } irr [8]; 264 265 /*280*/ union { /* Error Status Register */ 266 struct { 267 u32 send_cs_error : 1, 268 receive_cs_error : 1, 269 send_accept_error : 1, 270 receive_accept_error : 1, 271 __reserved_1 : 1, 272 send_illegal_vector : 1, 273 receive_illegal_vector : 1, 274 illegal_register_address : 1, 275 __reserved_2 : 24; 276 u32 __reserved_3[3]; 277 } error_bits; 278 struct { 279 u32 errors; 280 u32 __reserved_3[3]; 281 } all_errors; 282 } esr; 283 284 /*290*/ struct { u32 __reserved[4]; } __reserved_08; 285 286 /*2A0*/ struct { u32 __reserved[4]; } __reserved_09; 287 288 /*2B0*/ struct { u32 __reserved[4]; } __reserved_10; 289 290 /*2C0*/ struct { u32 __reserved[4]; } __reserved_11; 291 292 /*2D0*/ struct { u32 __reserved[4]; } __reserved_12; 293 294 /*2E0*/ struct { u32 __reserved[4]; } __reserved_13; 295 296 /*2F0*/ struct { u32 __reserved[4]; } __reserved_14; 297 298 /*300*/ struct { /* Interrupt Command Register 1 */ 299 u32 vector : 8, 300 delivery_mode : 3, 301 destination_mode : 1, 302 delivery_status : 1, 303 __reserved_1 : 1, 304 level : 1, 305 trigger : 1, 306 __reserved_2 : 2, 307 shorthand : 2, 308 __reserved_3 : 12; 309 u32 __reserved_4[3]; 310 } icr1; 311 312 /*310*/ struct { /* Interrupt Command Register 2 */ 313 union { 314 u32 __reserved_1 : 24, 315 phys_dest : 4, 316 __reserved_2 : 4; 317 u32 __reserved_3 : 24, 318 logical_dest : 8; 319 } dest; 320 u32 __reserved_4[3]; 321 } icr2; 322 323 /*320*/ struct { /* LVT - Timer */ 324 u32 vector : 8, 325 __reserved_1 : 4, 326 delivery_status : 1, 327 __reserved_2 : 3, 328 mask : 1, 329 timer_mode : 1, 330 __reserved_3 : 14; 331 u32 __reserved_4[3]; 332 } lvt_timer; 333 334 /*330*/ struct { /* LVT - Thermal Sensor */ 335 u32 vector : 8, 336 delivery_mode : 3, 337 __reserved_1 : 1, 338 delivery_status : 1, 339 __reserved_2 : 3, 340 mask : 1, 341 __reserved_3 : 15; 342 u32 __reserved_4[3]; 343 } lvt_thermal; 344 345 /*340*/ struct { /* LVT - Performance Counter */ 346 u32 vector : 8, 347 delivery_mode : 3, 348 __reserved_1 : 1, 349 delivery_status : 1, 350 __reserved_2 : 3, 351 mask : 1, 352 __reserved_3 : 15; 353 u32 __reserved_4[3]; 354 } lvt_pc; 355 356 /*350*/ struct { /* LVT - LINT0 */ 357 u32 vector : 8, 358 delivery_mode : 3, 359 __reserved_1 : 1, 360 delivery_status : 1, 361 polarity : 1, 362 remote_irr : 1, 363 trigger : 1, 364 mask : 1, 365 __reserved_2 : 15; 366 u32 __reserved_3[3]; 367 } lvt_lint0; 368 369 /*360*/ struct { /* LVT - LINT1 */ 370 u32 vector : 8, 371 delivery_mode : 3, 372 __reserved_1 : 1, 373 delivery_status : 1, 374 polarity : 1, 375 remote_irr : 1, 376 trigger : 1, 377 mask : 1, 378 __reserved_2 : 15; 379 u32 __reserved_3[3]; 380 } lvt_lint1; 381 382 /*370*/ struct { /* LVT - Error */ 383 u32 vector : 8, 384 __reserved_1 : 4, 385 delivery_status : 1, 386 __reserved_2 : 3, 387 mask : 1, 388 __reserved_3 : 15; 389 u32 __reserved_4[3]; 390 } lvt_error; 391 392 /*380*/ struct { /* Timer Initial Count Register */ 393 u32 initial_count; 394 u32 __reserved_2[3]; 395 } timer_icr; 396 397 /*390*/ const 398 struct { /* Timer Current Count Register */ 399 u32 curr_count; 400 u32 __reserved_2[3]; 401 } timer_ccr; 402 403 /*3A0*/ struct { u32 __reserved[4]; } __reserved_16; 404 405 /*3B0*/ struct { u32 __reserved[4]; } __reserved_17; 406 407 /*3C0*/ struct { u32 __reserved[4]; } __reserved_18; 408 409 /*3D0*/ struct { u32 __reserved[4]; } __reserved_19; 410 411 /*3E0*/ struct { /* Timer Divide Configuration Register */ 412 u32 divisor : 4, 413 __reserved_1 : 28; 414 u32 __reserved_2[3]; 415 } timer_dcr; 416 417 /*3F0*/ struct { u32 __reserved[4]; } __reserved_20; 418 419 } __attribute__ ((packed)); 420 421 #undef u32 422 423 #ifdef CONFIG_X86_32 424 #define BAD_APICID 0xFFu 425 #else 426 #define BAD_APICID 0xFFFFu 427 #endif 428 429 enum apic_delivery_modes { 430 APIC_DELIVERY_MODE_FIXED = 0, 431 APIC_DELIVERY_MODE_LOWESTPRIO = 1, 432 APIC_DELIVERY_MODE_SMI = 2, 433 APIC_DELIVERY_MODE_NMI = 4, 434 APIC_DELIVERY_MODE_INIT = 5, 435 APIC_DELIVERY_MODE_EXTINT = 7, 436 }; 437 438 #endif /* _ASM_X86_APICDEF_H */ 439