arch/x86/include/asm/apicdef.h

   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_APIC_DEST_FIELD(x)  (((x) >> 24) & 0xFF)
  93 #define         SET_APIC_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_BASE_MASK        (0x3 << 18)
  99 #define         GET_APIC_TIMER_BASE(x)          (((x) >> 18) & 0x3)
 100 #define         SET_APIC_TIMER_BASE(x)          (((x) << 18))
 101 #define         APIC_TIMER_BASE_CLKIN           0x0
 102 #define         APIC_TIMER_BASE_TMBASE          0x1
 103 #define         APIC_TIMER_BASE_DIV             0x2
 104 #define         APIC_LVT_TIMER_ONESHOT          (0 << 17)
 105 #define         APIC_LVT_TIMER_PERIODIC         (1 << 17)
 106 #define         APIC_LVT_TIMER_TSCDEADLINE      (2 << 17)
 107 #define         APIC_LVT_MASKED                 (1 << 16)
 108 #define         APIC_LVT_LEVEL_TRIGGER          (1 << 15)
 109 #define         APIC_LVT_REMOTE_IRR             (1 << 14)
 110 #define         APIC_INPUT_POLARITY             (1 << 13)
 111 #define         APIC_SEND_PENDING               (1 << 12)
 112 #define         APIC_MODE_MASK                  0x700
 113 #define         GET_APIC_DELIVERY_MODE(x)       (((x) >> 8) & 0x7)
 114 #define         SET_APIC_DELIVERY_MODE(x, y)    (((x) & ~0x700) | ((y) << 8))
 115 #define                 APIC_MODE_FIXED         0x0
 116 #define                 APIC_MODE_NMI           0x4
 117 #define                 APIC_MODE_EXTINT        0x7
 118 #define APIC_LVT1       0x360
 119 #define APIC_LVTERR     0x370
 120 #define APIC_TMICT      0x380
 121 #define APIC_TMCCT      0x390
 122 #define APIC_TDCR       0x3E0
 123 #define APIC_SELF_IPI   0x3F0
 124 #define         APIC_TDR_DIV_TMBASE     (1 << 2)
 125 #define         APIC_TDR_DIV_1          0xB
 126 #define         APIC_TDR_DIV_2          0x0
 127 #define         APIC_TDR_DIV_4          0x1
 128 #define         APIC_TDR_DIV_8          0x2
 129 #define         APIC_TDR_DIV_16         0x3
 130 #define         APIC_TDR_DIV_32         0x8
 131 #define         APIC_TDR_DIV_64         0x9
 132 #define         APIC_TDR_DIV_128        0xA
 133 #define APIC_EFEAT      0x400
 134 #define APIC_ECTRL      0x410
 135 #define APIC_EILVTn(n)  (0x500 + 0x10 * n)
 136 #define         APIC_EILVT_NR_AMD_K8    1       /* # of extended interrupts */
 137 #define         APIC_EILVT_NR_AMD_10H   4
 138 #define         APIC_EILVT_NR_MAX       APIC_EILVT_NR_AMD_10H
 139 #define         APIC_EILVT_LVTOFF(x)    (((x) >> 4) & 0xF)
 140 #define         APIC_EILVT_MSG_FIX      0x0
 141 #define         APIC_EILVT_MSG_SMI      0x2
 142 #define         APIC_EILVT_MSG_NMI      0x4
 143 #define         APIC_EILVT_MSG_EXT      0x7
 144 #define         APIC_EILVT_MASKED       (1 << 16)
 145
 146 #define APIC_BASE (fix_to_virt(FIX_APIC_BASE))
 147 #define APIC_BASE_MSR   0x800
 148 #define XAPIC_ENABLE    (1UL << 11)
 149 #define X2APIC_ENABLE   (1UL << 10)
 150
 151 #ifdef CONFIG_X86_32
 152 # define MAX_IO_APICS 64
 153 # define MAX_LOCAL_APIC 256
 154 #else
 155 # define MAX_IO_APICS 128
 156 # define MAX_LOCAL_APIC 32768
 157 #endif
 158
 159 /*
 160  * All x86-64 systems are xAPIC compatible.
 161  * In the following, "apicid" is a physical APIC ID.
 162  */
 163 #define XAPIC_DEST_CPUS_SHIFT   4
 164 #define XAPIC_DEST_CPUS_MASK    ((1u << XAPIC_DEST_CPUS_SHIFT) - 1)
 165 #define XAPIC_DEST_CLUSTER_MASK (XAPIC_DEST_CPUS_MASK << XAPIC_DEST_CPUS_SHIFT)
 166 #define APIC_CLUSTER(apicid)    ((apicid) & XAPIC_DEST_CLUSTER_MASK)
 167 #define APIC_CLUSTERID(apicid)  (APIC_CLUSTER(apicid) >> XAPIC_DEST_CPUS_SHIFT)
 168 #define APIC_CPUID(apicid)      ((apicid) & XAPIC_DEST_CPUS_MASK)
 169 #define NUM_APIC_CLUSTERS       ((BAD_APICID + 1) >> XAPIC_DEST_CPUS_SHIFT)
 170
 171 /*
 172  * the local APIC register structure, memory mapped. Not terribly well
 173  * tested, but we might eventually use this one in the future - the
 174  * problem why we cannot use it right now is the P5 APIC, it has an
 175  * errata which cannot take 8-bit reads and writes, only 32-bit ones ...
 176  */
 177 #define u32 unsigned int
 178
 179 struct local_apic {
 180
 181 /*000*/ struct { u32 __reserved[4]; } __reserved_01;
 182
 183 /*010*/ struct { u32 __reserved[4]; } __reserved_02;
 184
 185 /*020*/ struct { /* APIC ID Register */
 186                 u32   __reserved_1      : 24,
 187                         phys_apic_id    :  4,
 188                         __reserved_2    :  4;
 189                 u32 __reserved[3];
 190         } id;
 191
 192 /*030*/ const
 193         struct { /* APIC Version Register */
 194                 u32   version           :  8,
 195                         __reserved_1    :  8,
 196                         max_lvt         :  8,
 197                         __reserved_2    :  8;
 198                 u32 __reserved[3];
 199         } version;
 200
 201 /*040*/ struct { u32 __reserved[4]; } __reserved_03;
 202
 203 /*050*/ struct { u32 __reserved[4]; } __reserved_04;
 204
 205 /*060*/ struct { u32 __reserved[4]; } __reserved_05;
 206
 207 /*070*/ struct { u32 __reserved[4]; } __reserved_06;
 208
 209 /*080*/ struct { /* Task Priority Register */
 210                 u32   priority  :  8,
 211                         __reserved_1    : 24;
 212                 u32 __reserved_2[3];
 213         } tpr;
 214
 215 /*090*/ const
 216         struct { /* Arbitration Priority Register */
 217                 u32   priority  :  8,
 218                         __reserved_1    : 24;
 219                 u32 __reserved_2[3];
 220         } apr;
 221
 222 /*0A0*/ const
 223         struct { /* Processor Priority Register */
 224                 u32   priority  :  8,
 225                         __reserved_1    : 24;
 226                 u32 __reserved_2[3];
 227         } ppr;
 228
 229 /*0B0*/ struct { /* End Of Interrupt Register */
 230                 u32   eoi;
 231                 u32 __reserved[3];
 232         } eoi;
 233
 234 /*0C0*/ struct { u32 __reserved[4]; } __reserved_07;
 235
 236 /*0D0*/ struct { /* Logical Destination Register */
 237                 u32   __reserved_1      : 24,
 238                         logical_dest    :  8;
 239                 u32 __reserved_2[3];
 240         } ldr;
 241
 242 /*0E0*/ struct { /* Destination Format Register */
 243                 u32   __reserved_1      : 28,
 244                         model           :  4;
 245                 u32 __reserved_2[3];
 246         } dfr;
 247
 248 /*0F0*/ struct { /* Spurious Interrupt Vector Register */
 249                 u32     spurious_vector :  8,
 250                         apic_enabled    :  1,
 251                         focus_cpu       :  1,
 252                         __reserved_2    : 22;
 253                 u32 __reserved_3[3];
 254         } svr;
 255
 256 /*100*/ struct { /* In Service Register */
 257 /*170*/         u32 bitfield;
 258                 u32 __reserved[3];
 259         } isr [8];
 260
 261 /*180*/ struct { /* Trigger Mode Register */
 262 /*1F0*/         u32 bitfield;
 263                 u32 __reserved[3];
 264         } tmr [8];
 265
 266 /*200*/ struct { /* Interrupt Request Register */
 267 /*270*/         u32 bitfield;
 268                 u32 __reserved[3];
 269         } irr [8];
 270
 271 /*280*/ union { /* Error Status Register */
 272                 struct {
 273                         u32   send_cs_error                     :  1,
 274                                 receive_cs_error                :  1,
 275                                 send_accept_error               :  1,
 276                                 receive_accept_error            :  1,
 277                                 __reserved_1                    :  1,
 278                                 send_illegal_vector             :  1,
 279                                 receive_illegal_vector          :  1,
 280                                 illegal_register_address        :  1,
 281                                 __reserved_2                    : 24;
 282                         u32 __reserved_3[3];
 283                 } error_bits;
 284                 struct {
 285                         u32 errors;
 286                         u32 __reserved_3[3];
 287                 } all_errors;
 288         } esr;
 289
 290 /*290*/ struct { u32 __reserved[4]; } __reserved_08;
 291
 292 /*2A0*/ struct { u32 __reserved[4]; } __reserved_09;
 293
 294 /*2B0*/ struct { u32 __reserved[4]; } __reserved_10;
 295
 296 /*2C0*/ struct { u32 __reserved[4]; } __reserved_11;
 297
 298 /*2D0*/ struct { u32 __reserved[4]; } __reserved_12;
 299
 300 /*2E0*/ struct { u32 __reserved[4]; } __reserved_13;
 301
 302 /*2F0*/ struct { u32 __reserved[4]; } __reserved_14;
 303
 304 /*300*/ struct { /* Interrupt Command Register 1 */
 305                 u32   vector                    :  8,
 306                         delivery_mode           :  3,
 307                         destination_mode        :  1,
 308                         delivery_status         :  1,
 309                         __reserved_1            :  1,
 310                         level                   :  1,
 311                         trigger                 :  1,
 312                         __reserved_2            :  2,
 313                         shorthand               :  2,
 314                         __reserved_3            :  12;
 315                 u32 __reserved_4[3];
 316         } icr1;
 317
 318 /*310*/ struct { /* Interrupt Command Register 2 */
 319                 union {
 320                         u32   __reserved_1      : 24,
 321                                 phys_dest       :  4,
 322                                 __reserved_2    :  4;
 323                         u32   __reserved_3      : 24,
 324                                 logical_dest    :  8;
 325                 } dest;
 326                 u32 __reserved_4[3];
 327         } icr2;
 328
 329 /*320*/ struct { /* LVT - Timer */
 330                 u32   vector            :  8,
 331                         __reserved_1    :  4,
 332                         delivery_status :  1,
 333                         __reserved_2    :  3,
 334                         mask            :  1,
 335                         timer_mode      :  1,
 336                         __reserved_3    : 14;
 337                 u32 __reserved_4[3];
 338         } lvt_timer;
 339
 340 /*330*/ struct { /* LVT - Thermal Sensor */
 341                 u32  vector             :  8,
 342                         delivery_mode   :  3,
 343                         __reserved_1    :  1,
 344                         delivery_status :  1,
 345                         __reserved_2    :  3,
 346                         mask            :  1,
 347                         __reserved_3    : 15;
 348                 u32 __reserved_4[3];
 349         } lvt_thermal;
 350
 351 /*340*/ struct { /* LVT - Performance Counter */
 352                 u32   vector            :  8,
 353                         delivery_mode   :  3,
 354                         __reserved_1    :  1,
 355                         delivery_status :  1,
 356                         __reserved_2    :  3,
 357                         mask            :  1,
 358                         __reserved_3    : 15;
 359                 u32 __reserved_4[3];
 360         } lvt_pc;
 361
 362 /*350*/ struct { /* LVT - LINT0 */
 363                 u32   vector            :  8,
 364                         delivery_mode   :  3,
 365                         __reserved_1    :  1,
 366                         delivery_status :  1,
 367                         polarity        :  1,
 368                         remote_irr      :  1,
 369                         trigger         :  1,
 370                         mask            :  1,
 371                         __reserved_2    : 15;
 372                 u32 __reserved_3[3];
 373         } lvt_lint0;
 374
 375 /*360*/ struct { /* LVT - LINT1 */
 376                 u32   vector            :  8,
 377                         delivery_mode   :  3,
 378                         __reserved_1    :  1,
 379                         delivery_status :  1,
 380                         polarity        :  1,
 381                         remote_irr      :  1,
 382                         trigger         :  1,
 383                         mask            :  1,
 384                         __reserved_2    : 15;
 385                 u32 __reserved_3[3];
 386         } lvt_lint1;
 387
 388 /*370*/ struct { /* LVT - Error */
 389                 u32   vector            :  8,
 390                         __reserved_1    :  4,
 391                         delivery_status :  1,
 392                         __reserved_2    :  3,
 393                         mask            :  1,
 394                         __reserved_3    : 15;
 395                 u32 __reserved_4[3];
 396         } lvt_error;
 397
 398 /*380*/ struct { /* Timer Initial Count Register */
 399                 u32   initial_count;
 400                 u32 __reserved_2[3];
 401         } timer_icr;
 402
 403 /*390*/ const
 404         struct { /* Timer Current Count Register */
 405                 u32   curr_count;
 406                 u32 __reserved_2[3];
 407         } timer_ccr;
 408
 409 /*3A0*/ struct { u32 __reserved[4]; } __reserved_16;
 410
 411 /*3B0*/ struct { u32 __reserved[4]; } __reserved_17;
 412
 413 /*3C0*/ struct { u32 __reserved[4]; } __reserved_18;
 414
 415 /*3D0*/ struct { u32 __reserved[4]; } __reserved_19;
 416
 417 /*3E0*/ struct { /* Timer Divide Configuration Register */
 418                 u32   divisor           :  4,
 419                         __reserved_1    : 28;
 420                 u32 __reserved_2[3];
 421         } timer_dcr;
 422
 423 /*3F0*/ struct { u32 __reserved[4]; } __reserved_20;
 424
 425 } __attribute__ ((packed));
 426
 427 #undef u32
 428
 429 #ifdef CONFIG_X86_32
 430  #define BAD_APICID 0xFFu
 431 #else
 432  #define BAD_APICID 0xFFFFu
 433 #endif
 434
 435 enum apic_delivery_modes {
 436         APIC_DELIVERY_MODE_FIXED        = 0,
 437         APIC_DELIVERY_MODE_LOWESTPRIO   = 1,
 438         APIC_DELIVERY_MODE_SMI          = 2,
 439         APIC_DELIVERY_MODE_NMI          = 4,
 440         APIC_DELIVERY_MODE_INIT         = 5,
 441         APIC_DELIVERY_MODE_EXTINT       = 7,
 442 };
 443
 444 #endif /* _ASM_X86_APICDEF_H */