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_RSS                  (1U << 26)
  72 #define GICD_TYPER_LPIS                 (1U << 17)
  73 #define GICD_TYPER_MBIS                 (1U << 16)
  74
  75 #define GICD_TYPER_ID_BITS(typer)       ((((typer) >> 19) & 0x1f) + 1)
  76 #define GICD_TYPER_IRQS(typer)          ((((typer) & 0x1f) + 1) * 32)
  77
  78 #define GICD_IROUTER_SPI_MODE_ONE       (0U << 31)
  79 #define GICD_IROUTER_SPI_MODE_ANY       (1U << 31)
  80
  81 #define GIC_PIDR2_ARCH_MASK             0xf0
  82 #define GIC_PIDR2_ARCH_GICv3            0x30
  83 #define GIC_PIDR2_ARCH_GICv4            0x40
  84
  85 #define GIC_V3_DIST_SIZE                0x10000
  86
  87 /*
  88  * Re-Distributor registers, offsets from RD_base
  89  */
  90 #define GICR_CTLR                       GICD_CTLR
  91 #define GICR_IIDR                       0x0004
  92 #define GICR_TYPER                      0x0008
  93 #define GICR_STATUSR                    GICD_STATUSR
  94 #define GICR_WAKER                      0x0014
  95 #define GICR_SETLPIR                    0x0040
  96 #define GICR_CLRLPIR                    0x0048
  97 #define GICR_SEIR                       GICD_SEIR
  98 #define GICR_PROPBASER                  0x0070
  99 #define GICR_PENDBASER                  0x0078
 100 #define GICR_INVLPIR                    0x00A0
 101 #define GICR_INVALLR                    0x00B0
 102 #define GICR_SYNCR                      0x00C0
 103 #define GICR_MOVLPIR                    0x0100
 104 #define GICR_MOVALLR                    0x0110
 105 #define GICR_IDREGS                     GICD_IDREGS
 106 #define GICR_PIDR2                      GICD_PIDR2
 107
 108 #define GICR_CTLR_ENABLE_LPIS           (1UL << 0)
 109 #define GICR_CTLR_RWP                   (1UL << 3)
 110
 111 #define GICR_TYPER_CPU_NUMBER(r)        (((r) >> 8) & 0xffff)
 112
 113 #define GICR_WAKER_ProcessorSleep       (1U << 1)
 114 #define GICR_WAKER_ChildrenAsleep       (1U << 2)
 115
 116 #define GIC_BASER_CACHE_nCnB            0ULL
 117 #define GIC_BASER_CACHE_SameAsInner     0ULL
 118 #define GIC_BASER_CACHE_nC              1ULL
 119 #define GIC_BASER_CACHE_RaWt            2ULL
 120 #define GIC_BASER_CACHE_RaWb            3ULL
 121 #define GIC_BASER_CACHE_WaWt            4ULL
 122 #define GIC_BASER_CACHE_WaWb            5ULL
 123 #define GIC_BASER_CACHE_RaWaWt          6ULL
 124 #define GIC_BASER_CACHE_RaWaWb          7ULL
 125 #define GIC_BASER_CACHE_MASK            7ULL
 126 #define GIC_BASER_NonShareable          0ULL
 127 #define GIC_BASER_InnerShareable        1ULL
 128 #define GIC_BASER_OuterShareable        2ULL
 129 #define GIC_BASER_SHAREABILITY_MASK     3ULL
 130
 131 #define GIC_BASER_CACHEABILITY(reg, inner_outer, type)                  \
 132         (GIC_BASER_CACHE_##type << reg##_##inner_outer##_CACHEABILITY_SHIFT)
 133
 134 #define GIC_BASER_SHAREABILITY(reg, type)                               \
 135         (GIC_BASER_##type << reg##_SHAREABILITY_SHIFT)
 136
 137 /* encode a size field of width @w containing @n - 1 units */
 138 #define GIC_ENCODE_SZ(n, w) (((unsigned long)(n) - 1) & GENMASK_ULL(((w) - 1), 0))
 139
 140 #define GICR_PROPBASER_SHAREABILITY_SHIFT               (10)
 141 #define GICR_PROPBASER_INNER_CACHEABILITY_SHIFT         (7)
 142 #define GICR_PROPBASER_OUTER_CACHEABILITY_SHIFT         (56)
 143 #define GICR_PROPBASER_SHAREABILITY_MASK                                \
 144         GIC_BASER_SHAREABILITY(GICR_PROPBASER, SHAREABILITY_MASK)
 145 #define GICR_PROPBASER_INNER_CACHEABILITY_MASK                          \
 146         GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, MASK)
 147 #define GICR_PROPBASER_OUTER_CACHEABILITY_MASK                          \
 148         GIC_BASER_CACHEABILITY(GICR_PROPBASER, OUTER, MASK)
 149 #define GICR_PROPBASER_CACHEABILITY_MASK GICR_PROPBASER_INNER_CACHEABILITY_MASK
 150
 151 #define GICR_PROPBASER_InnerShareable                                   \
 152         GIC_BASER_SHAREABILITY(GICR_PROPBASER, InnerShareable)
 153
 154 #define GICR_PROPBASER_nCnB     GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, nCnB)
 155 #define GICR_PROPBASER_nC       GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, nC)
 156 #define GICR_PROPBASER_RaWt     GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWt)
 157 #define GICR_PROPBASER_RaWb     GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWt)
 158 #define GICR_PROPBASER_WaWt     GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WaWt)
 159 #define GICR_PROPBASER_WaWb     GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WaWb)
 160 #define GICR_PROPBASER_RaWaWt   GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWaWt)
 161 #define GICR_PROPBASER_RaWaWb   GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWaWb)
 162
 163 #define GICR_PROPBASER_IDBITS_MASK                      (0x1f)
 164 #define GICR_PROPBASER_ADDRESS(x)       ((x) & GENMASK_ULL(51, 12))
 165 #define GICR_PENDBASER_ADDRESS(x)       ((x) & GENMASK_ULL(51, 16))
 166
 167 #define GICR_PENDBASER_SHAREABILITY_SHIFT               (10)
 168 #define GICR_PENDBASER_INNER_CACHEABILITY_SHIFT         (7)
 169 #define GICR_PENDBASER_OUTER_CACHEABILITY_SHIFT         (56)
 170 #define GICR_PENDBASER_SHAREABILITY_MASK                                \
 171         GIC_BASER_SHAREABILITY(GICR_PENDBASER, SHAREABILITY_MASK)
 172 #define GICR_PENDBASER_INNER_CACHEABILITY_MASK                          \
 173         GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, MASK)
 174 #define GICR_PENDBASER_OUTER_CACHEABILITY_MASK                          \
 175         GIC_BASER_CACHEABILITY(GICR_PENDBASER, OUTER, MASK)
 176 #define GICR_PENDBASER_CACHEABILITY_MASK GICR_PENDBASER_INNER_CACHEABILITY_MASK
 177
 178 #define GICR_PENDBASER_InnerShareable                                   \
 179         GIC_BASER_SHAREABILITY(GICR_PENDBASER, InnerShareable)
 180
 181 #define GICR_PENDBASER_nCnB     GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, nCnB)
 182 #define GICR_PENDBASER_nC       GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, nC)
 183 #define GICR_PENDBASER_RaWt     GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWt)
 184 #define GICR_PENDBASER_RaWb     GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWt)
 185 #define GICR_PENDBASER_WaWt     GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WaWt)
 186 #define GICR_PENDBASER_WaWb     GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WaWb)
 187 #define GICR_PENDBASER_RaWaWt   GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWaWt)
 188 #define GICR_PENDBASER_RaWaWb   GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWaWb)
 189
 190 #define GICR_PENDBASER_PTZ                              BIT_ULL(62)
 191
 192 /*
 193  * Re-Distributor registers, offsets from SGI_base
 194  */
 195 #define GICR_IGROUPR0                   GICD_IGROUPR
 196 #define GICR_ISENABLER0                 GICD_ISENABLER
 197 #define GICR_ICENABLER0                 GICD_ICENABLER
 198 #define GICR_ISPENDR0                   GICD_ISPENDR
 199 #define GICR_ICPENDR0                   GICD_ICPENDR
 200 #define GICR_ISACTIVER0                 GICD_ISACTIVER
 201 #define GICR_ICACTIVER0                 GICD_ICACTIVER
 202 #define GICR_IPRIORITYR0                GICD_IPRIORITYR
 203 #define GICR_ICFGR0                     GICD_ICFGR
 204 #define GICR_IGRPMODR0                  GICD_IGRPMODR
 205 #define GICR_NSACR                      GICD_NSACR
 206
 207 #define GICR_TYPER_PLPIS                (1U << 0)
 208 #define GICR_TYPER_VLPIS                (1U << 1)
 209 #define GICR_TYPER_DirectLPIS           (1U << 3)
 210 #define GICR_TYPER_LAST                 (1U << 4)
 211
 212 #define GIC_V3_REDIST_SIZE              0x20000
 213
 214 #define LPI_PROP_GROUP1                 (1 << 1)
 215 #define LPI_PROP_ENABLED                (1 << 0)
 216
 217 /*
 218  * Re-Distributor registers, offsets from VLPI_base
 219  */
 220 #define GICR_VPROPBASER                 0x0070
 221
 222 #define GICR_VPROPBASER_IDBITS_MASK     0x1f
 223
 224 #define GICR_VPROPBASER_SHAREABILITY_SHIFT              (10)
 225 #define GICR_VPROPBASER_INNER_CACHEABILITY_SHIFT        (7)
 226 #define GICR_VPROPBASER_OUTER_CACHEABILITY_SHIFT        (56)
 227
 228 #define GICR_VPROPBASER_SHAREABILITY_MASK                               \
 229         GIC_BASER_SHAREABILITY(GICR_VPROPBASER, SHAREABILITY_MASK)
 230 #define GICR_VPROPBASER_INNER_CACHEABILITY_MASK                         \
 231         GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, MASK)
 232 #define GICR_VPROPBASER_OUTER_CACHEABILITY_MASK                         \
 233         GIC_BASER_CACHEABILITY(GICR_VPROPBASER, OUTER, MASK)
 234 #define GICR_VPROPBASER_CACHEABILITY_MASK                               \
 235         GICR_VPROPBASER_INNER_CACHEABILITY_MASK
 236
 237 #define GICR_VPROPBASER_InnerShareable                                  \
 238         GIC_BASER_SHAREABILITY(GICR_VPROPBASER, InnerShareable)
 239
 240 #define GICR_VPROPBASER_nCnB    GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, nCnB)
 241 #define GICR_VPROPBASER_nC      GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, nC)
 242 #define GICR_VPROPBASER_RaWt    GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWt)
 243 #define GICR_VPROPBASER_RaWb    GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWt)
 244 #define GICR_VPROPBASER_WaWt    GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, WaWt)
 245 #define GICR_VPROPBASER_WaWb    GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, WaWb)
 246 #define GICR_VPROPBASER_RaWaWt  GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWaWt)
 247 #define GICR_VPROPBASER_RaWaWb  GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWaWb)
 248
 249 #define GICR_VPENDBASER                 0x0078
 250
 251 #define GICR_VPENDBASER_SHAREABILITY_SHIFT              (10)
 252 #define GICR_VPENDBASER_INNER_CACHEABILITY_SHIFT        (7)
 253 #define GICR_VPENDBASER_OUTER_CACHEABILITY_SHIFT        (56)
 254 #define GICR_VPENDBASER_SHAREABILITY_MASK                               \
 255         GIC_BASER_SHAREABILITY(GICR_VPENDBASER, SHAREABILITY_MASK)
 256 #define GICR_VPENDBASER_INNER_CACHEABILITY_MASK                         \
 257         GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, MASK)
 258 #define GICR_VPENDBASER_OUTER_CACHEABILITY_MASK                         \
 259         GIC_BASER_CACHEABILITY(GICR_VPENDBASER, OUTER, MASK)
 260 #define GICR_VPENDBASER_CACHEABILITY_MASK                               \
 261         GICR_VPENDBASER_INNER_CACHEABILITY_MASK
 262
 263 #define GICR_VPENDBASER_NonShareable                                    \
 264         GIC_BASER_SHAREABILITY(GICR_VPENDBASER, NonShareable)
 265
 266 #define GICR_VPENDBASER_nCnB    GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, nCnB)
 267 #define GICR_VPENDBASER_nC      GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, nC)
 268 #define GICR_VPENDBASER_RaWt    GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWt)
 269 #define GICR_VPENDBASER_RaWb    GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWt)
 270 #define GICR_VPENDBASER_WaWt    GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, WaWt)
 271 #define GICR_VPENDBASER_WaWb    GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, WaWb)
 272 #define GICR_VPENDBASER_RaWaWt  GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWaWt)
 273 #define GICR_VPENDBASER_RaWaWb  GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWaWb)
 274
 275 #define GICR_VPENDBASER_Dirty           (1ULL << 60)
 276 #define GICR_VPENDBASER_PendingLast     (1ULL << 61)
 277 #define GICR_VPENDBASER_IDAI            (1ULL << 62)
 278 #define GICR_VPENDBASER_Valid           (1ULL << 63)
 279
 280 /*
 281  * ITS registers, offsets from ITS_base
 282  */
 283 #define GITS_CTLR                       0x0000
 284 #define GITS_IIDR                       0x0004
 285 #define GITS_TYPER                      0x0008
 286 #define GITS_CBASER                     0x0080
 287 #define GITS_CWRITER                    0x0088
 288 #define GITS_CREADR                     0x0090
 289 #define GITS_BASER                      0x0100
 290 #define GITS_IDREGS_BASE                0xffd0
 291 #define GITS_PIDR0                      0xffe0
 292 #define GITS_PIDR1                      0xffe4
 293 #define GITS_PIDR2                      GICR_PIDR2
 294 #define GITS_PIDR4                      0xffd0
 295 #define GITS_CIDR0                      0xfff0
 296 #define GITS_CIDR1                      0xfff4
 297 #define GITS_CIDR2                      0xfff8
 298 #define GITS_CIDR3                      0xfffc
 299
 300 #define GITS_TRANSLATER                 0x10040
 301
 302 #define GITS_CTLR_ENABLE                (1U << 0)
 303 #define GITS_CTLR_ImDe                  (1U << 1)
 304 #define GITS_CTLR_ITS_NUMBER_SHIFT      4
 305 #define GITS_CTLR_ITS_NUMBER            (0xFU << GITS_CTLR_ITS_NUMBER_SHIFT)
 306 #define GITS_CTLR_QUIESCENT             (1U << 31)
 307
 308 #define GITS_TYPER_PLPIS                (1UL << 0)
 309 #define GITS_TYPER_VLPIS                (1UL << 1)
 310 #define GITS_TYPER_ITT_ENTRY_SIZE_SHIFT 4
 311 #define GITS_TYPER_ITT_ENTRY_SIZE(r)    ((((r) >> GITS_TYPER_ITT_ENTRY_SIZE_SHIFT) & 0x1f) + 1)
 312 #define GITS_TYPER_IDBITS_SHIFT         8
 313 #define GITS_TYPER_DEVBITS_SHIFT        13
 314 #define GITS_TYPER_DEVBITS(r)           ((((r) >> GITS_TYPER_DEVBITS_SHIFT) & 0x1f) + 1)
 315 #define GITS_TYPER_PTA                  (1UL << 19)
 316 #define GITS_TYPER_HCC_SHIFT            24
 317 #define GITS_TYPER_HCC(r)               (((r) >> GITS_TYPER_HCC_SHIFT) & 0xff)
 318 #define GITS_TYPER_VMOVP                (1ULL << 37)
 319
 320 #define GITS_IIDR_REV_SHIFT             12
 321 #define GITS_IIDR_REV_MASK              (0xf << GITS_IIDR_REV_SHIFT)
 322 #define GITS_IIDR_REV(r)                (((r) >> GITS_IIDR_REV_SHIFT) & 0xf)
 323 #define GITS_IIDR_PRODUCTID_SHIFT       24
 324
 325 #define GITS_CBASER_VALID                       (1ULL << 63)
 326 #define GITS_CBASER_SHAREABILITY_SHIFT          (10)
 327 #define GITS_CBASER_INNER_CACHEABILITY_SHIFT    (59)
 328 #define GITS_CBASER_OUTER_CACHEABILITY_SHIFT    (53)
 329 #define GITS_CBASER_SHAREABILITY_MASK                                   \
 330         GIC_BASER_SHAREABILITY(GITS_CBASER, SHAREABILITY_MASK)
 331 #define GITS_CBASER_INNER_CACHEABILITY_MASK                             \
 332         GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, MASK)
 333 #define GITS_CBASER_OUTER_CACHEABILITY_MASK                             \
 334         GIC_BASER_CACHEABILITY(GITS_CBASER, OUTER, MASK)
 335 #define GITS_CBASER_CACHEABILITY_MASK GITS_CBASER_INNER_CACHEABILITY_MASK
 336
 337 #define GITS_CBASER_InnerShareable                                      \
 338         GIC_BASER_SHAREABILITY(GITS_CBASER, InnerShareable)
 339
 340 #define GITS_CBASER_nCnB        GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, nCnB)
 341 #define GITS_CBASER_nC          GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, nC)
 342 #define GITS_CBASER_RaWt        GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWt)
 343 #define GITS_CBASER_RaWb        GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWt)
 344 #define GITS_CBASER_WaWt        GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, WaWt)
 345 #define GITS_CBASER_WaWb        GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, WaWb)
 346 #define GITS_CBASER_RaWaWt      GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWaWt)
 347 #define GITS_CBASER_RaWaWb      GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWaWb)
 348
 349 #define GITS_BASER_NR_REGS              8
 350
 351 #define GITS_BASER_VALID                        (1ULL << 63)
 352 #define GITS_BASER_INDIRECT                     (1ULL << 62)
 353
 354 #define GITS_BASER_INNER_CACHEABILITY_SHIFT     (59)
 355 #define GITS_BASER_OUTER_CACHEABILITY_SHIFT     (53)
 356 #define GITS_BASER_INNER_CACHEABILITY_MASK                              \
 357         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, MASK)
 358 #define GITS_BASER_CACHEABILITY_MASK            GITS_BASER_INNER_CACHEABILITY_MASK
 359 #define GITS_BASER_OUTER_CACHEABILITY_MASK                              \
 360         GIC_BASER_CACHEABILITY(GITS_BASER, OUTER, MASK)
 361 #define GITS_BASER_SHAREABILITY_MASK                                    \
 362         GIC_BASER_SHAREABILITY(GITS_BASER, SHAREABILITY_MASK)
 363
 364 #define GITS_BASER_nCnB         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, nCnB)
 365 #define GITS_BASER_nC           GIC_BASER_CACHEABILITY(GITS_BASER, INNER, nC)
 366 #define GITS_BASER_RaWt         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWt)
 367 #define GITS_BASER_RaWb         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWt)
 368 #define GITS_BASER_WaWt         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, WaWt)
 369 #define GITS_BASER_WaWb         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, WaWb)
 370 #define GITS_BASER_RaWaWt       GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWaWt)
 371 #define GITS_BASER_RaWaWb       GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWaWb)
 372
 373 #define GITS_BASER_TYPE_SHIFT                   (56)
 374 #define GITS_BASER_TYPE(r)              (((r) >> GITS_BASER_TYPE_SHIFT) & 7)
 375 #define GITS_BASER_ENTRY_SIZE_SHIFT             (48)
 376 #define GITS_BASER_ENTRY_SIZE(r)        ((((r) >> GITS_BASER_ENTRY_SIZE_SHIFT) & 0x1f) + 1)
 377 #define GITS_BASER_ENTRY_SIZE_MASK      GENMASK_ULL(52, 48)
 378 #define GITS_BASER_PHYS_52_to_48(phys)                                  \
 379         (((phys) & GENMASK_ULL(47, 16)) | (((phys) >> 48) & 0xf) << 12)
 380 #define GITS_BASER_SHAREABILITY_SHIFT   (10)
 381 #define GITS_BASER_InnerShareable                                       \
 382         GIC_BASER_SHAREABILITY(GITS_BASER, InnerShareable)
 383 #define GITS_BASER_PAGE_SIZE_SHIFT      (8)
 384 #define GITS_BASER_PAGE_SIZE_4K         (0ULL << GITS_BASER_PAGE_SIZE_SHIFT)
 385 #define GITS_BASER_PAGE_SIZE_16K        (1ULL << GITS_BASER_PAGE_SIZE_SHIFT)
 386 #define GITS_BASER_PAGE_SIZE_64K        (2ULL << GITS_BASER_PAGE_SIZE_SHIFT)
 387 #define GITS_BASER_PAGE_SIZE_MASK       (3ULL << GITS_BASER_PAGE_SIZE_SHIFT)
 388 #define GITS_BASER_PAGES_MAX            256
 389 #define GITS_BASER_PAGES_SHIFT          (0)
 390 #define GITS_BASER_NR_PAGES(r)          (((r) & 0xff) + 1)
 391
 392 #define GITS_BASER_TYPE_NONE            0
 393 #define GITS_BASER_TYPE_DEVICE          1
 394 #define GITS_BASER_TYPE_VCPU            2
 395 #define GITS_BASER_TYPE_RESERVED3       3
 396 #define GITS_BASER_TYPE_COLLECTION      4
 397 #define GITS_BASER_TYPE_RESERVED5       5
 398 #define GITS_BASER_TYPE_RESERVED6       6
 399 #define GITS_BASER_TYPE_RESERVED7       7
 400
 401 #define GITS_LVL1_ENTRY_SIZE           (8UL)
 402
 403 /*
 404  * ITS commands
 405  */
 406 #define GITS_CMD_MAPD                   0x08
 407 #define GITS_CMD_MAPC                   0x09
 408 #define GITS_CMD_MAPTI                  0x0a
 409 #define GITS_CMD_MAPI                   0x0b
 410 #define GITS_CMD_MOVI                   0x01
 411 #define GITS_CMD_DISCARD                0x0f
 412 #define GITS_CMD_INV                    0x0c
 413 #define GITS_CMD_MOVALL                 0x0e
 414 #define GITS_CMD_INVALL                 0x0d
 415 #define GITS_CMD_INT                    0x03
 416 #define GITS_CMD_CLEAR                  0x04
 417 #define GITS_CMD_SYNC                   0x05
 418
 419 /*
 420  * GICv4 ITS specific commands
 421  */
 422 #define GITS_CMD_GICv4(x)               ((x) | 0x20)
 423 #define GITS_CMD_VINVALL                GITS_CMD_GICv4(GITS_CMD_INVALL)
 424 #define GITS_CMD_VMAPP                  GITS_CMD_GICv4(GITS_CMD_MAPC)
 425 #define GITS_CMD_VMAPTI                 GITS_CMD_GICv4(GITS_CMD_MAPTI)
 426 #define GITS_CMD_VMOVI                  GITS_CMD_GICv4(GITS_CMD_MOVI)
 427 #define GITS_CMD_VSYNC                  GITS_CMD_GICv4(GITS_CMD_SYNC)
 428 /* VMOVP is the odd one, as it doesn't have a physical counterpart */
 429 #define GITS_CMD_VMOVP                  GITS_CMD_GICv4(2)
 430
 431 /*
 432  * ITS error numbers
 433  */
 434 #define E_ITS_MOVI_UNMAPPED_INTERRUPT           0x010107
 435 #define E_ITS_MOVI_UNMAPPED_COLLECTION          0x010109
 436 #define E_ITS_INT_UNMAPPED_INTERRUPT            0x010307
 437 #define E_ITS_CLEAR_UNMAPPED_INTERRUPT          0x010507
 438 #define E_ITS_MAPD_DEVICE_OOR                   0x010801
 439 #define E_ITS_MAPD_ITTSIZE_OOR                  0x010802
 440 #define E_ITS_MAPC_PROCNUM_OOR                  0x010902
 441 #define E_ITS_MAPC_COLLECTION_OOR               0x010903
 442 #define E_ITS_MAPTI_UNMAPPED_DEVICE             0x010a04
 443 #define E_ITS_MAPTI_ID_OOR                      0x010a05
 444 #define E_ITS_MAPTI_PHYSICALID_OOR              0x010a06
 445 #define E_ITS_INV_UNMAPPED_INTERRUPT            0x010c07
 446 #define E_ITS_INVALL_UNMAPPED_COLLECTION        0x010d09
 447 #define E_ITS_MOVALL_PROCNUM_OOR                0x010e01
 448 #define E_ITS_DISCARD_UNMAPPED_INTERRUPT        0x010f07
 449
 450 /*
 451  * CPU interface registers
 452  */
 453 #define ICC_CTLR_EL1_EOImode_SHIFT      (1)
 454 #define ICC_CTLR_EL1_EOImode_drop_dir   (0U << ICC_CTLR_EL1_EOImode_SHIFT)
 455 #define ICC_CTLR_EL1_EOImode_drop       (1U << ICC_CTLR_EL1_EOImode_SHIFT)
 456 #define ICC_CTLR_EL1_EOImode_MASK       (1 << ICC_CTLR_EL1_EOImode_SHIFT)
 457 #define ICC_CTLR_EL1_CBPR_SHIFT         0
 458 #define ICC_CTLR_EL1_CBPR_MASK          (1 << ICC_CTLR_EL1_CBPR_SHIFT)
 459 #define ICC_CTLR_EL1_PRI_BITS_SHIFT     8
 460 #define ICC_CTLR_EL1_PRI_BITS_MASK      (0x7 << ICC_CTLR_EL1_PRI_BITS_SHIFT)
 461 #define ICC_CTLR_EL1_ID_BITS_SHIFT      11
 462 #define ICC_CTLR_EL1_ID_BITS_MASK       (0x7 << ICC_CTLR_EL1_ID_BITS_SHIFT)
 463 #define ICC_CTLR_EL1_SEIS_SHIFT         14
 464 #define ICC_CTLR_EL1_SEIS_MASK          (0x1 << ICC_CTLR_EL1_SEIS_SHIFT)
 465 #define ICC_CTLR_EL1_A3V_SHIFT          15
 466 #define ICC_CTLR_EL1_A3V_MASK           (0x1 << ICC_CTLR_EL1_A3V_SHIFT)
 467 #define ICC_CTLR_EL1_RSS                (0x1 << 18)
 468 #define ICC_PMR_EL1_SHIFT               0
 469 #define ICC_PMR_EL1_MASK                (0xff << ICC_PMR_EL1_SHIFT)
 470 #define ICC_BPR0_EL1_SHIFT              0
 471 #define ICC_BPR0_EL1_MASK               (0x7 << ICC_BPR0_EL1_SHIFT)
 472 #define ICC_BPR1_EL1_SHIFT              0
 473 #define ICC_BPR1_EL1_MASK               (0x7 << ICC_BPR1_EL1_SHIFT)
 474 #define ICC_IGRPEN0_EL1_SHIFT           0
 475 #define ICC_IGRPEN0_EL1_MASK            (1 << ICC_IGRPEN0_EL1_SHIFT)
 476 #define ICC_IGRPEN1_EL1_SHIFT           0
 477 #define ICC_IGRPEN1_EL1_MASK            (1 << ICC_IGRPEN1_EL1_SHIFT)
 478 #define ICC_SRE_EL1_DIB                 (1U << 2)
 479 #define ICC_SRE_EL1_DFB                 (1U << 1)
 480 #define ICC_SRE_EL1_SRE                 (1U << 0)
 481
 482 /*
 483  * Hypervisor interface registers (SRE only)
 484  */
 485 #define ICH_LR_VIRTUAL_ID_MASK          ((1ULL << 32) - 1)
 486
 487 #define ICH_LR_EOI                      (1ULL << 41)
 488 #define ICH_LR_GROUP                    (1ULL << 60)
 489 #define ICH_LR_HW                       (1ULL << 61)
 490 #define ICH_LR_STATE                    (3ULL << 62)
 491 #define ICH_LR_PENDING_BIT              (1ULL << 62)
 492 #define ICH_LR_ACTIVE_BIT               (1ULL << 63)
 493 #define ICH_LR_PHYS_ID_SHIFT            32
 494 #define ICH_LR_PHYS_ID_MASK             (0x3ffULL << ICH_LR_PHYS_ID_SHIFT)
 495 #define ICH_LR_PRIORITY_SHIFT           48
 496 #define ICH_LR_PRIORITY_MASK            (0xffULL << ICH_LR_PRIORITY_SHIFT)
 497
 498 /* These are for GICv2 emulation only */
 499 #define GICH_LR_VIRTUALID               (0x3ffUL << 0)
 500 #define GICH_LR_PHYSID_CPUID_SHIFT      (10)
 501 #define GICH_LR_PHYSID_CPUID            (7UL << GICH_LR_PHYSID_CPUID_SHIFT)
 502
 503 #define ICH_MISR_EOI                    (1 << 0)
 504 #define ICH_MISR_U                      (1 << 1)
 505
 506 #define ICH_HCR_EN                      (1 << 0)
 507 #define ICH_HCR_UIE                     (1 << 1)
 508 #define ICH_HCR_NPIE                    (1 << 3)
 509 #define ICH_HCR_TC                      (1 << 10)
 510 #define ICH_HCR_TALL0                   (1 << 11)
 511 #define ICH_HCR_TALL1                   (1 << 12)
 512 #define ICH_HCR_EOIcount_SHIFT          27
 513 #define ICH_HCR_EOIcount_MASK           (0x1f << ICH_HCR_EOIcount_SHIFT)
 514
 515 #define ICH_VMCR_ACK_CTL_SHIFT          2
 516 #define ICH_VMCR_ACK_CTL_MASK           (1 << ICH_VMCR_ACK_CTL_SHIFT)
 517 #define ICH_VMCR_FIQ_EN_SHIFT           3
 518 #define ICH_VMCR_FIQ_EN_MASK            (1 << ICH_VMCR_FIQ_EN_SHIFT)
 519 #define ICH_VMCR_CBPR_SHIFT             4
 520 #define ICH_VMCR_CBPR_MASK              (1 << ICH_VMCR_CBPR_SHIFT)
 521 #define ICH_VMCR_EOIM_SHIFT             9
 522 #define ICH_VMCR_EOIM_MASK              (1 << ICH_VMCR_EOIM_SHIFT)
 523 #define ICH_VMCR_BPR1_SHIFT             18
 524 #define ICH_VMCR_BPR1_MASK              (7 << ICH_VMCR_BPR1_SHIFT)
 525 #define ICH_VMCR_BPR0_SHIFT             21
 526 #define ICH_VMCR_BPR0_MASK              (7 << ICH_VMCR_BPR0_SHIFT)
 527 #define ICH_VMCR_PMR_SHIFT              24
 528 #define ICH_VMCR_PMR_MASK               (0xffUL << ICH_VMCR_PMR_SHIFT)
 529 #define ICH_VMCR_ENG0_SHIFT             0
 530 #define ICH_VMCR_ENG0_MASK              (1 << ICH_VMCR_ENG0_SHIFT)
 531 #define ICH_VMCR_ENG1_SHIFT             1
 532 #define ICH_VMCR_ENG1_MASK              (1 << ICH_VMCR_ENG1_SHIFT)
 533
 534 #define ICH_VTR_PRI_BITS_SHIFT          29
 535 #define ICH_VTR_PRI_BITS_MASK           (7 << ICH_VTR_PRI_BITS_SHIFT)
 536 #define ICH_VTR_ID_BITS_SHIFT           23
 537 #define ICH_VTR_ID_BITS_MASK            (7 << ICH_VTR_ID_BITS_SHIFT)
 538 #define ICH_VTR_SEIS_SHIFT              22
 539 #define ICH_VTR_SEIS_MASK               (1 << ICH_VTR_SEIS_SHIFT)
 540 #define ICH_VTR_A3V_SHIFT               21
 541 #define ICH_VTR_A3V_MASK                (1 << ICH_VTR_A3V_SHIFT)
 542
 543 #define ICC_IAR1_EL1_SPURIOUS           0x3ff
 544
 545 #define ICC_SRE_EL2_SRE                 (1 << 0)
 546 #define ICC_SRE_EL2_ENABLE              (1 << 3)
 547
 548 #define ICC_SGI1R_TARGET_LIST_SHIFT     0
 549 #define ICC_SGI1R_TARGET_LIST_MASK      (0xffff << ICC_SGI1R_TARGET_LIST_SHIFT)
 550 #define ICC_SGI1R_AFFINITY_1_SHIFT      16
 551 #define ICC_SGI1R_AFFINITY_1_MASK       (0xff << ICC_SGI1R_AFFINITY_1_SHIFT)
 552 #define ICC_SGI1R_SGI_ID_SHIFT          24
 553 #define ICC_SGI1R_SGI_ID_MASK           (0xfULL << ICC_SGI1R_SGI_ID_SHIFT)
 554 #define ICC_SGI1R_AFFINITY_2_SHIFT      32
 555 #define ICC_SGI1R_AFFINITY_2_MASK       (0xffULL << ICC_SGI1R_AFFINITY_2_SHIFT)
 556 #define ICC_SGI1R_IRQ_ROUTING_MODE_BIT  40
 557 #define ICC_SGI1R_RS_SHIFT              44
 558 #define ICC_SGI1R_RS_MASK               (0xfULL << ICC_SGI1R_RS_SHIFT)
 559 #define ICC_SGI1R_AFFINITY_3_SHIFT      48
 560 #define ICC_SGI1R_AFFINITY_3_MASK       (0xffULL << ICC_SGI1R_AFFINITY_3_SHIFT)
 561
 562 #include <asm/arch_gicv3.h>
 563
 564 #ifndef __ASSEMBLY__
 565
 566 /*
 567  * We need a value to serve as a irq-type for LPIs. Choose one that will
 568  * hopefully pique the interest of the reviewer.
 569  */
 570 #define GIC_IRQ_TYPE_LPI                0xa110c8ed
 571
 572 struct rdists {
 573         struct {
 574                 void __iomem    *rd_base;
 575                 struct page     *pend_page;
 576                 phys_addr_t     phys_base;
 577         } __percpu              *rdist;
 578         struct page             *prop_page;
 579         int                     id_bits;
 580         u64                     flags;
 581         bool                    has_vlpis;
 582         bool                    has_direct_lpi;
 583 };
 584
 585 struct irq_domain;
 586 struct fwnode_handle;
 587 int its_cpu_init(void);
 588 int its_init(struct fwnode_handle *handle, struct rdists *rdists,
 589              struct irq_domain *domain);
 590 int mbi_init(struct fwnode_handle *fwnode, struct irq_domain *parent);
 591
 592 static inline bool gic_enable_sre(void)
 593 {
 594         u32 val;
 595
 596         val = gic_read_sre();
 597         if (val & ICC_SRE_EL1_SRE)
 598                 return true;
 599
 600         val |= ICC_SRE_EL1_SRE;
 601         gic_write_sre(val);
 602         val = gic_read_sre();
 603
 604         return !!(val & ICC_SRE_EL1_SRE);
 605 }
 606
 607 #endif
 608
 609 #endif