include/linux/irqchip/arm-gic-v3.h

   1 /*
   2  * Copyright (C) 2013, 2014 ARM Limited, All Rights Reserved.
   3  * Author: Marc Zyngier <marc.zyngier@arm.com>
   4  *
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18 #ifndef __LINUX_IRQCHIP_ARM_GIC_V3_H
  19 #define __LINUX_IRQCHIP_ARM_GIC_V3_H
  20
  21 /*
  22  * Distributor registers. We assume we're running non-secure, with ARE
  23  * being set. Secure-only and non-ARE registers are not described.
  24  */
  25 #define GICD_CTLR                       0x0000
  26 #define GICD_TYPER                      0x0004
  27 #define GICD_IIDR                       0x0008
  28 #define GICD_STATUSR                    0x0010
  29 #define GICD_SETSPI_NSR                 0x0040
  30 #define GICD_CLRSPI_NSR                 0x0048
  31 #define GICD_SETSPI_SR                  0x0050
  32 #define GICD_CLRSPI_SR                  0x0058
  33 #define GICD_SEIR                       0x0068
  34 #define GICD_IGROUPR                    0x0080
  35 #define GICD_ISENABLER                  0x0100
  36 #define GICD_ICENABLER                  0x0180
  37 #define GICD_ISPENDR                    0x0200
  38 #define GICD_ICPENDR                    0x0280
  39 #define GICD_ISACTIVER                  0x0300
  40 #define GICD_ICACTIVER                  0x0380
  41 #define GICD_IPRIORITYR                 0x0400
  42 #define GICD_ICFGR                      0x0C00
  43 #define GICD_IGRPMODR                   0x0D00
  44 #define GICD_NSACR                      0x0E00
  45 #define GICD_IROUTER                    0x6000
  46 #define GICD_IDREGS                     0xFFD0
  47 #define GICD_PIDR2                      0xFFE8
  48
  49 /*
  50  * Those registers are actually from GICv2, but the spec demands that they
  51  * are implemented as RES0 if ARE is 1 (which we do in KVM's emulated GICv3).
  52  */
  53 #define GICD_ITARGETSR                  0x0800
  54 #define GICD_SGIR                       0x0F00
  55 #define GICD_CPENDSGIR                  0x0F10
  56 #define GICD_SPENDSGIR                  0x0F20
  57
  58 #define GICD_CTLR_RWP                   (1U << 31)
  59 #define GICD_CTLR_DS                    (1U << 6)
  60 #define GICD_CTLR_ARE_NS                (1U << 4)
  61 #define GICD_CTLR_ENABLE_G1A            (1U << 1)
  62 #define GICD_CTLR_ENABLE_G1             (1U << 0)
  63
  64 /*
  65  * In systems with a single security state (what we emulate in KVM)
  66  * the meaning of the interrupt group enable bits is slightly different
  67  */
  68 #define GICD_CTLR_ENABLE_SS_G1          (1U << 1)
  69 #define GICD_CTLR_ENABLE_SS_G0          (1U << 0)
  70
  71 #define GICD_TYPER_LPIS                 (1U << 17)
  72 #define GICD_TYPER_MBIS                 (1U << 16)
  73
  74 #define GICD_TYPER_ID_BITS(typer)       ((((typer) >> 19) & 0x1f) + 1)
  75 #define GICD_TYPER_IRQS(typer)          ((((typer) & 0x1f) + 1) * 32)
  76
  77 #define GICD_IROUTER_SPI_MODE_ONE       (0U << 31)
  78 #define GICD_IROUTER_SPI_MODE_ANY       (1U << 31)
  79
  80 #define GIC_PIDR2_ARCH_MASK             0xf0
  81 #define GIC_PIDR2_ARCH_GICv3            0x30
  82 #define GIC_PIDR2_ARCH_GICv4            0x40
  83
  84 #define GIC_V3_DIST_SIZE                0x10000
  85
  86 /*
  87  * Re-Distributor registers, offsets from RD_base
  88  */
  89 #define GICR_CTLR                       GICD_CTLR
  90 #define GICR_IIDR                       0x0004
  91 #define GICR_TYPER                      0x0008
  92 #define GICR_STATUSR                    GICD_STATUSR
  93 #define GICR_WAKER                      0x0014
  94 #define GICR_SETLPIR                    0x0040
  95 #define GICR_CLRLPIR                    0x0048
  96 #define GICR_SEIR                       GICD_SEIR
  97 #define GICR_PROPBASER                  0x0070
  98 #define GICR_PENDBASER                  0x0078
  99 #define GICR_INVLPIR                    0x00A0
 100 #define GICR_INVALLR                    0x00B0
 101 #define GICR_SYNCR                      0x00C0
 102 #define GICR_MOVLPIR                    0x0100
 103 #define GICR_MOVALLR                    0x0110
 104 #define GICR_IDREGS                     GICD_IDREGS
 105 #define GICR_PIDR2                      GICD_PIDR2
 106
 107 #define GICR_CTLR_ENABLE_LPIS           (1UL << 0)
 108
 109 #define GICR_TYPER_CPU_NUMBER(r)        (((r) >> 8) & 0xffff)
 110
 111 #define GICR_WAKER_ProcessorSleep       (1U << 1)
 112 #define GICR_WAKER_ChildrenAsleep       (1U << 2)
 113
 114 #define GIC_BASER_CACHE_nCnB            0ULL
 115 #define GIC_BASER_CACHE_SameAsInner     0ULL
 116 #define GIC_BASER_CACHE_nC              1ULL
 117 #define GIC_BASER_CACHE_RaWt            2ULL
 118 #define GIC_BASER_CACHE_RaWb            3ULL
 119 #define GIC_BASER_CACHE_WaWt            4ULL
 120 #define GIC_BASER_CACHE_WaWb            5ULL
 121 #define GIC_BASER_CACHE_RaWaWt          6ULL
 122 #define GIC_BASER_CACHE_RaWaWb          7ULL
 123 #define GIC_BASER_CACHE_MASK            7ULL
 124 #define GIC_BASER_NonShareable          0ULL
 125 #define GIC_BASER_InnerShareable        1ULL
 126 #define GIC_BASER_OuterShareable        2ULL
 127 #define GIC_BASER_SHAREABILITY_MASK     3ULL
 128
 129 #define GIC_BASER_CACHEABILITY(reg, inner_outer, type)                  \
 130         (GIC_BASER_CACHE_##type << reg##_##inner_outer##_CACHEABILITY_SHIFT)
 131
 132 #define GIC_BASER_SHAREABILITY(reg, type)                               \
 133         (GIC_BASER_##type << reg##_SHAREABILITY_SHIFT)
 134
 135 /* encode a size field of width @w containing @n - 1 units */
 136 #define GIC_ENCODE_SZ(n, w) (((unsigned long)(n) - 1) & GENMASK_ULL(((w) - 1), 0))
 137
 138 #define GICR_PROPBASER_SHAREABILITY_SHIFT               (10)
 139 #define GICR_PROPBASER_INNER_CACHEABILITY_SHIFT         (7)
 140 #define GICR_PROPBASER_OUTER_CACHEABILITY_SHIFT         (56)
 141 #define GICR_PROPBASER_SHAREABILITY_MASK                                \
 142         GIC_BASER_SHAREABILITY(GICR_PROPBASER, SHAREABILITY_MASK)
 143 #define GICR_PROPBASER_INNER_CACHEABILITY_MASK                          \
 144         GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, MASK)
 145 #define GICR_PROPBASER_OUTER_CACHEABILITY_MASK                          \
 146         GIC_BASER_CACHEABILITY(GICR_PROPBASER, OUTER, MASK)
 147 #define GICR_PROPBASER_CACHEABILITY_MASK GICR_PROPBASER_INNER_CACHEABILITY_MASK
 148
 149 #define GICR_PROPBASER_InnerShareable                                   \
 150         GIC_BASER_SHAREABILITY(GICR_PROPBASER, InnerShareable)
 151
 152 #define GICR_PROPBASER_nCnB     GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, nCnB)
 153 #define GICR_PROPBASER_nC       GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, nC)
 154 #define GICR_PROPBASER_RaWt     GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWt)
 155 #define GICR_PROPBASER_RaWb     GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWt)
 156 #define GICR_PROPBASER_WaWt     GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WaWt)
 157 #define GICR_PROPBASER_WaWb     GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WaWb)
 158 #define GICR_PROPBASER_RaWaWt   GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWaWt)
 159 #define GICR_PROPBASER_RaWaWb   GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWaWb)
 160
 161 #define GICR_PROPBASER_IDBITS_MASK                      (0x1f)
 162 #define GICR_PROPBASER_ADDRESS(x)       ((x) & GENMASK_ULL(51, 12))
 163 #define GICR_PENDBASER_ADDRESS(x)       ((x) & GENMASK_ULL(51, 16))
 164
 165 #define GICR_PENDBASER_SHAREABILITY_SHIFT               (10)
 166 #define GICR_PENDBASER_INNER_CACHEABILITY_SHIFT         (7)
 167 #define GICR_PENDBASER_OUTER_CACHEABILITY_SHIFT         (56)
 168 #define GICR_PENDBASER_SHAREABILITY_MASK                                \
 169         GIC_BASER_SHAREABILITY(GICR_PENDBASER, SHAREABILITY_MASK)
 170 #define GICR_PENDBASER_INNER_CACHEABILITY_MASK                          \
 171         GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, MASK)
 172 #define GICR_PENDBASER_OUTER_CACHEABILITY_MASK                          \
 173         GIC_BASER_CACHEABILITY(GICR_PENDBASER, OUTER, MASK)
 174 #define GICR_PENDBASER_CACHEABILITY_MASK GICR_PENDBASER_INNER_CACHEABILITY_MASK
 175
 176 #define GICR_PENDBASER_InnerShareable                                   \
 177         GIC_BASER_SHAREABILITY(GICR_PENDBASER, InnerShareable)
 178
 179 #define GICR_PENDBASER_nCnB     GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, nCnB)
 180 #define GICR_PENDBASER_nC       GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, nC)
 181 #define GICR_PENDBASER_RaWt     GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWt)
 182 #define GICR_PENDBASER_RaWb     GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWt)
 183 #define GICR_PENDBASER_WaWt     GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WaWt)
 184 #define GICR_PENDBASER_WaWb     GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WaWb)
 185 #define GICR_PENDBASER_RaWaWt   GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWaWt)
 186 #define GICR_PENDBASER_RaWaWb   GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWaWb)
 187
 188 #define GICR_PENDBASER_PTZ                              BIT_ULL(62)
 189
 190 /*
 191  * Re-Distributor registers, offsets from SGI_base
 192  */
 193 #define GICR_IGROUPR0                   GICD_IGROUPR
 194 #define GICR_ISENABLER0                 GICD_ISENABLER
 195 #define GICR_ICENABLER0                 GICD_ICENABLER
 196 #define GICR_ISPENDR0                   GICD_ISPENDR
 197 #define GICR_ICPENDR0                   GICD_ICPENDR
 198 #define GICR_ISACTIVER0                 GICD_ISACTIVER
 199 #define GICR_ICACTIVER0                 GICD_ICACTIVER
 200 #define GICR_IPRIORITYR0                GICD_IPRIORITYR
 201 #define GICR_ICFGR0                     GICD_ICFGR
 202 #define GICR_IGRPMODR0                  GICD_IGRPMODR
 203 #define GICR_NSACR                      GICD_NSACR
 204
 205 #define GICR_TYPER_PLPIS                (1U << 0)
 206 #define GICR_TYPER_VLPIS                (1U << 1)
 207 #define GICR_TYPER_LAST                 (1U << 4)
 208
 209 #define GIC_V3_REDIST_SIZE              0x20000
 210
 211 #define LPI_PROP_GROUP1                 (1 << 1)
 212 #define LPI_PROP_ENABLED                (1 << 0)
 213
 214 /*
 215  * ITS registers, offsets from ITS_base
 216  */
 217 #define GITS_CTLR                       0x0000
 218 #define GITS_IIDR                       0x0004
 219 #define GITS_TYPER                      0x0008
 220 #define GITS_CBASER                     0x0080
 221 #define GITS_CWRITER                    0x0088
 222 #define GITS_CREADR                     0x0090
 223 #define GITS_BASER                      0x0100
 224 #define GITS_IDREGS_BASE                0xffd0
 225 #define GITS_PIDR0                      0xffe0
 226 #define GITS_PIDR1                      0xffe4
 227 #define GITS_PIDR2                      GICR_PIDR2
 228 #define GITS_PIDR4                      0xffd0
 229 #define GITS_CIDR0                      0xfff0
 230 #define GITS_CIDR1                      0xfff4
 231 #define GITS_CIDR2                      0xfff8
 232 #define GITS_CIDR3                      0xfffc
 233
 234 #define GITS_TRANSLATER                 0x10040
 235
 236 #define GITS_CTLR_ENABLE                (1U << 0)
 237 #define GITS_CTLR_QUIESCENT             (1U << 31)
 238
 239 #define GITS_TYPER_PLPIS                (1UL << 0)
 240 #define GITS_TYPER_ITT_ENTRY_SIZE_SHIFT 4
 241 #define GITS_TYPER_IDBITS_SHIFT         8
 242 #define GITS_TYPER_DEVBITS_SHIFT        13
 243 #define GITS_TYPER_DEVBITS(r)           ((((r) >> GITS_TYPER_DEVBITS_SHIFT) & 0x1f) + 1)
 244 #define GITS_TYPER_PTA                  (1UL << 19)
 245 #define GITS_TYPER_HWCOLLCNT_SHIFT      24
 246
 247 #define GITS_IIDR_REV_SHIFT             12
 248 #define GITS_IIDR_REV_MASK              (0xf << GITS_IIDR_REV_SHIFT)
 249 #define GITS_IIDR_REV(r)                (((r) >> GITS_IIDR_REV_SHIFT) & 0xf)
 250 #define GITS_IIDR_PRODUCTID_SHIFT       24
 251
 252 #define GITS_CBASER_VALID                       (1ULL << 63)
 253 #define GITS_CBASER_SHAREABILITY_SHIFT          (10)
 254 #define GITS_CBASER_INNER_CACHEABILITY_SHIFT    (59)
 255 #define GITS_CBASER_OUTER_CACHEABILITY_SHIFT    (53)
 256 #define GITS_CBASER_SHAREABILITY_MASK                                   \
 257         GIC_BASER_SHAREABILITY(GITS_CBASER, SHAREABILITY_MASK)
 258 #define GITS_CBASER_INNER_CACHEABILITY_MASK                             \
 259         GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, MASK)
 260 #define GITS_CBASER_OUTER_CACHEABILITY_MASK                             \
 261         GIC_BASER_CACHEABILITY(GITS_CBASER, OUTER, MASK)
 262 #define GITS_CBASER_CACHEABILITY_MASK GITS_CBASER_INNER_CACHEABILITY_MASK
 263
 264 #define GITS_CBASER_InnerShareable                                      \
 265         GIC_BASER_SHAREABILITY(GITS_CBASER, InnerShareable)
 266
 267 #define GITS_CBASER_nCnB        GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, nCnB)
 268 #define GITS_CBASER_nC          GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, nC)
 269 #define GITS_CBASER_RaWt        GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWt)
 270 #define GITS_CBASER_RaWb        GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWt)
 271 #define GITS_CBASER_WaWt        GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, WaWt)
 272 #define GITS_CBASER_WaWb        GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, WaWb)
 273 #define GITS_CBASER_RaWaWt      GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWaWt)
 274 #define GITS_CBASER_RaWaWb      GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWaWb)
 275
 276 #define GITS_BASER_NR_REGS              8
 277
 278 #define GITS_BASER_VALID                        (1ULL << 63)
 279 #define GITS_BASER_INDIRECT                     (1ULL << 62)
 280
 281 #define GITS_BASER_INNER_CACHEABILITY_SHIFT     (59)
 282 #define GITS_BASER_OUTER_CACHEABILITY_SHIFT     (53)
 283 #define GITS_BASER_INNER_CACHEABILITY_MASK                              \
 284         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, MASK)
 285 #define GITS_BASER_CACHEABILITY_MASK            GITS_BASER_INNER_CACHEABILITY_MASK
 286 #define GITS_BASER_OUTER_CACHEABILITY_MASK                              \
 287         GIC_BASER_CACHEABILITY(GITS_BASER, OUTER, MASK)
 288 #define GITS_BASER_SHAREABILITY_MASK                                    \
 289         GIC_BASER_SHAREABILITY(GITS_BASER, SHAREABILITY_MASK)
 290
 291 #define GITS_BASER_nCnB         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, nCnB)
 292 #define GITS_BASER_nC           GIC_BASER_CACHEABILITY(GITS_BASER, INNER, nC)
 293 #define GITS_BASER_RaWt         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWt)
 294 #define GITS_BASER_RaWb         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWt)
 295 #define GITS_BASER_WaWt         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, WaWt)
 296 #define GITS_BASER_WaWb         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, WaWb)
 297 #define GITS_BASER_RaWaWt       GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWaWt)
 298 #define GITS_BASER_RaWaWb       GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWaWb)
 299
 300 #define GITS_BASER_TYPE_SHIFT                   (56)
 301 #define GITS_BASER_TYPE(r)              (((r) >> GITS_BASER_TYPE_SHIFT) & 7)
 302 #define GITS_BASER_ENTRY_SIZE_SHIFT             (48)
 303 #define GITS_BASER_ENTRY_SIZE(r)        ((((r) >> GITS_BASER_ENTRY_SIZE_SHIFT) & 0x1f) + 1)
 304 #define GITS_BASER_ENTRY_SIZE_MASK      GENMASK_ULL(52, 48)
 305 #define GITS_BASER_SHAREABILITY_SHIFT   (10)
 306 #define GITS_BASER_InnerShareable                                       \
 307         GIC_BASER_SHAREABILITY(GITS_BASER, InnerShareable)
 308 #define GITS_BASER_PAGE_SIZE_SHIFT      (8)
 309 #define GITS_BASER_PAGE_SIZE_4K         (0ULL << GITS_BASER_PAGE_SIZE_SHIFT)
 310 #define GITS_BASER_PAGE_SIZE_16K        (1ULL << GITS_BASER_PAGE_SIZE_SHIFT)
 311 #define GITS_BASER_PAGE_SIZE_64K        (2ULL << GITS_BASER_PAGE_SIZE_SHIFT)
 312 #define GITS_BASER_PAGE_SIZE_MASK       (3ULL << GITS_BASER_PAGE_SIZE_SHIFT)
 313 #define GITS_BASER_PAGES_MAX            256
 314 #define GITS_BASER_PAGES_SHIFT          (0)
 315 #define GITS_BASER_NR_PAGES(r)          (((r) & 0xff) + 1)
 316
 317 #define GITS_BASER_TYPE_NONE            0
 318 #define GITS_BASER_TYPE_DEVICE          1
 319 #define GITS_BASER_TYPE_VCPU            2
 320 #define GITS_BASER_TYPE_RESERVED3       3
 321 #define GITS_BASER_TYPE_COLLECTION      4
 322 #define GITS_BASER_TYPE_RESERVED5       5
 323 #define GITS_BASER_TYPE_RESERVED6       6
 324 #define GITS_BASER_TYPE_RESERVED7       7
 325
 326 #define GITS_LVL1_ENTRY_SIZE           (8UL)
 327
 328 /*
 329  * ITS commands
 330  */
 331 #define GITS_CMD_MAPD                   0x08
 332 #define GITS_CMD_MAPC                   0x09
 333 #define GITS_CMD_MAPTI                  0x0a
 334 #define GITS_CMD_MAPI                   0x0b
 335 #define GITS_CMD_MOVI                   0x01
 336 #define GITS_CMD_DISCARD                0x0f
 337 #define GITS_CMD_INV                    0x0c
 338 #define GITS_CMD_MOVALL                 0x0e
 339 #define GITS_CMD_INVALL                 0x0d
 340 #define GITS_CMD_INT                    0x03
 341 #define GITS_CMD_CLEAR                  0x04
 342 #define GITS_CMD_SYNC                   0x05
 343
 344 /*
 345  * ITS error numbers
 346  */
 347 #define E_ITS_MOVI_UNMAPPED_INTERRUPT           0x010107
 348 #define E_ITS_MOVI_UNMAPPED_COLLECTION          0x010109
 349 #define E_ITS_INT_UNMAPPED_INTERRUPT            0x010307
 350 #define E_ITS_CLEAR_UNMAPPED_INTERRUPT          0x010507
 351 #define E_ITS_MAPD_DEVICE_OOR                   0x010801
 352 #define E_ITS_MAPD_ITTSIZE_OOR                  0x010802
 353 #define E_ITS_MAPC_PROCNUM_OOR                  0x010902
 354 #define E_ITS_MAPC_COLLECTION_OOR               0x010903
 355 #define E_ITS_MAPTI_UNMAPPED_DEVICE             0x010a04
 356 #define E_ITS_MAPTI_ID_OOR                      0x010a05
 357 #define E_ITS_MAPTI_PHYSICALID_OOR              0x010a06
 358 #define E_ITS_INV_UNMAPPED_INTERRUPT            0x010c07
 359 #define E_ITS_INVALL_UNMAPPED_COLLECTION        0x010d09
 360 #define E_ITS_MOVALL_PROCNUM_OOR                0x010e01
 361 #define E_ITS_DISCARD_UNMAPPED_INTERRUPT        0x010f07
 362
 363 /*
 364  * CPU interface registers
 365  */
 366 #define ICC_CTLR_EL1_EOImode_SHIFT      (1)
 367 #define ICC_CTLR_EL1_EOImode_drop_dir   (0U << ICC_CTLR_EL1_EOImode_SHIFT)
 368 #define ICC_CTLR_EL1_EOImode_drop       (1U << ICC_CTLR_EL1_EOImode_SHIFT)
 369 #define ICC_CTLR_EL1_EOImode_MASK       (1 << ICC_CTLR_EL1_EOImode_SHIFT)
 370 #define ICC_CTLR_EL1_CBPR_SHIFT         0
 371 #define ICC_CTLR_EL1_CBPR_MASK          (1 << ICC_CTLR_EL1_CBPR_SHIFT)
 372 #define ICC_CTLR_EL1_PRI_BITS_SHIFT     8
 373 #define ICC_CTLR_EL1_PRI_BITS_MASK      (0x7 << ICC_CTLR_EL1_PRI_BITS_SHIFT)
 374 #define ICC_CTLR_EL1_ID_BITS_SHIFT      11
 375 #define ICC_CTLR_EL1_ID_BITS_MASK       (0x7 << ICC_CTLR_EL1_ID_BITS_SHIFT)
 376 #define ICC_CTLR_EL1_SEIS_SHIFT         14
 377 #define ICC_CTLR_EL1_SEIS_MASK          (0x1 << ICC_CTLR_EL1_SEIS_SHIFT)
 378 #define ICC_CTLR_EL1_A3V_SHIFT          15
 379 #define ICC_CTLR_EL1_A3V_MASK           (0x1 << ICC_CTLR_EL1_A3V_SHIFT)
 380 #define ICC_PMR_EL1_SHIFT               0
 381 #define ICC_PMR_EL1_MASK                (0xff << ICC_PMR_EL1_SHIFT)
 382 #define ICC_BPR0_EL1_SHIFT              0
 383 #define ICC_BPR0_EL1_MASK               (0x7 << ICC_BPR0_EL1_SHIFT)
 384 #define ICC_BPR1_EL1_SHIFT              0
 385 #define ICC_BPR1_EL1_MASK               (0x7 << ICC_BPR1_EL1_SHIFT)
 386 #define ICC_IGRPEN0_EL1_SHIFT           0
 387 #define ICC_IGRPEN0_EL1_MASK            (1 << ICC_IGRPEN0_EL1_SHIFT)
 388 #define ICC_IGRPEN1_EL1_SHIFT           0
 389 #define ICC_IGRPEN1_EL1_MASK            (1 << ICC_IGRPEN1_EL1_SHIFT)
 390 #define ICC_SRE_EL1_DIB                 (1U << 2)
 391 #define ICC_SRE_EL1_DFB                 (1U << 1)
 392 #define ICC_SRE_EL1_SRE                 (1U << 0)
 393
 394 /*
 395  * Hypervisor interface registers (SRE only)
 396  */
 397 #define ICH_LR_VIRTUAL_ID_MASK          ((1ULL << 32) - 1)
 398
 399 #define ICH_LR_EOI                      (1ULL << 41)
 400 #define ICH_LR_GROUP                    (1ULL << 60)
 401 #define ICH_LR_HW                       (1ULL << 61)
 402 #define ICH_LR_STATE                    (3ULL << 62)
 403 #define ICH_LR_PENDING_BIT              (1ULL << 62)
 404 #define ICH_LR_ACTIVE_BIT               (1ULL << 63)
 405 #define ICH_LR_PHYS_ID_SHIFT            32
 406 #define ICH_LR_PHYS_ID_MASK             (0x3ffULL << ICH_LR_PHYS_ID_SHIFT)
 407 #define ICH_LR_PRIORITY_SHIFT           48
 408
 409 /* These are for GICv2 emulation only */
 410 #define GICH_LR_VIRTUALID               (0x3ffUL << 0)
 411 #define GICH_LR_PHYSID_CPUID_SHIFT      (10)
 412 #define GICH_LR_PHYSID_CPUID            (7UL << GICH_LR_PHYSID_CPUID_SHIFT)
 413
 414 #define ICH_MISR_EOI                    (1 << 0)
 415 #define ICH_MISR_U                      (1 << 1)
 416
 417 #define ICH_HCR_EN                      (1 << 0)
 418 #define ICH_HCR_UIE                     (1 << 1)
 419
 420 #define ICH_VMCR_ACK_CTL_SHIFT          2
 421 #define ICH_VMCR_ACK_CTL_MASK           (1 << ICH_VMCR_ACK_CTL_SHIFT)
 422 #define ICH_VMCR_FIQ_EN_SHIFT           3
 423 #define ICH_VMCR_FIQ_EN_MASK            (1 << ICH_VMCR_FIQ_EN_SHIFT)
 424 #define ICH_VMCR_CBPR_SHIFT             4
 425 #define ICH_VMCR_CBPR_MASK              (1 << ICH_VMCR_CBPR_SHIFT)
 426 #define ICH_VMCR_EOIM_SHIFT             9
 427 #define ICH_VMCR_EOIM_MASK              (1 << ICH_VMCR_EOIM_SHIFT)
 428 #define ICH_VMCR_BPR1_SHIFT             18
 429 #define ICH_VMCR_BPR1_MASK              (7 << ICH_VMCR_BPR1_SHIFT)
 430 #define ICH_VMCR_BPR0_SHIFT             21
 431 #define ICH_VMCR_BPR0_MASK              (7 << ICH_VMCR_BPR0_SHIFT)
 432 #define ICH_VMCR_PMR_SHIFT              24
 433 #define ICH_VMCR_PMR_MASK               (0xffUL << ICH_VMCR_PMR_SHIFT)
 434 #define ICH_VMCR_ENG0_SHIFT             0
 435 #define ICH_VMCR_ENG0_MASK              (1 << ICH_VMCR_ENG0_SHIFT)
 436 #define ICH_VMCR_ENG1_SHIFT             1
 437 #define ICH_VMCR_ENG1_MASK              (1 << ICH_VMCR_ENG1_SHIFT)
 438
 439 #define ICH_VTR_PRI_BITS_SHIFT          29
 440 #define ICH_VTR_PRI_BITS_MASK           (7 << ICH_VTR_PRI_BITS_SHIFT)
 441 #define ICH_VTR_ID_BITS_SHIFT           23
 442 #define ICH_VTR_ID_BITS_MASK            (7 << ICH_VTR_ID_BITS_SHIFT)
 443 #define ICH_VTR_SEIS_SHIFT              22
 444 #define ICH_VTR_SEIS_MASK               (1 << ICH_VTR_SEIS_SHIFT)
 445 #define ICH_VTR_A3V_SHIFT               21
 446 #define ICH_VTR_A3V_MASK                (1 << ICH_VTR_A3V_SHIFT)
 447
 448 #define ICC_IAR1_EL1_SPURIOUS           0x3ff
 449
 450 #define ICC_SRE_EL2_SRE                 (1 << 0)
 451 #define ICC_SRE_EL2_ENABLE              (1 << 3)
 452
 453 #define ICC_SGI1R_TARGET_LIST_SHIFT     0
 454 #define ICC_SGI1R_TARGET_LIST_MASK      (0xffff << ICC_SGI1R_TARGET_LIST_SHIFT)
 455 #define ICC_SGI1R_AFFINITY_1_SHIFT      16
 456 #define ICC_SGI1R_AFFINITY_1_MASK       (0xff << ICC_SGI1R_AFFINITY_1_SHIFT)
 457 #define ICC_SGI1R_SGI_ID_SHIFT          24
 458 #define ICC_SGI1R_SGI_ID_MASK           (0xfULL << ICC_SGI1R_SGI_ID_SHIFT)
 459 #define ICC_SGI1R_AFFINITY_2_SHIFT      32
 460 #define ICC_SGI1R_AFFINITY_2_MASK       (0xffULL << ICC_SGI1R_AFFINITY_2_SHIFT)
 461 #define ICC_SGI1R_IRQ_ROUTING_MODE_BIT  40
 462 #define ICC_SGI1R_AFFINITY_3_SHIFT      48
 463 #define ICC_SGI1R_AFFINITY_3_MASK       (0xffULL << ICC_SGI1R_AFFINITY_3_SHIFT)
 464
 465 #include <asm/arch_gicv3.h>
 466
 467 #ifndef __ASSEMBLY__
 468
 469 /*
 470  * We need a value to serve as a irq-type for LPIs. Choose one that will
 471  * hopefully pique the interest of the reviewer.
 472  */
 473 #define GIC_IRQ_TYPE_LPI                0xa110c8ed
 474
 475 struct rdists {
 476         struct {
 477                 void __iomem    *rd_base;
 478                 struct page     *pend_page;
 479                 phys_addr_t     phys_base;
 480         } __percpu              *rdist;
 481         struct page             *prop_page;
 482         int                     id_bits;
 483         u64                     flags;
 484 };
 485
 486 struct irq_domain;
 487 struct fwnode_handle;
 488 int its_cpu_init(void);
 489 int its_init(struct fwnode_handle *handle, struct rdists *rdists,
 490              struct irq_domain *domain);
 491
 492 static inline bool gic_enable_sre(void)
 493 {
 494         u32 val;
 495
 496         val = gic_read_sre();
 497         if (val & ICC_SRE_EL1_SRE)
 498                 return true;
 499
 500         val |= ICC_SRE_EL1_SRE;
 501         gic_write_sre(val);
 502         val = gic_read_sre();
 503
 504         return !!(val & ICC_SRE_EL1_SRE);
 505 }
 506
 507 #endif
 508
 509 #endif