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 #define GICD_IIDR_IMPLEMENTER_SHIFT     0
  65 #define GICD_IIDR_IMPLEMENTER_MASK      (0xfff << GICD_IIDR_IMPLEMENTER_SHIFT)
  66 #define GICD_IIDR_REVISION_SHIFT        12
  67 #define GICD_IIDR_REVISION_MASK         (0xf << GICD_IIDR_REVISION_SHIFT)
  68 #define GICD_IIDR_VARIANT_SHIFT         16
  69 #define GICD_IIDR_VARIANT_MASK          (0xf << GICD_IIDR_VARIANT_SHIFT)
  70 #define GICD_IIDR_PRODUCT_ID_SHIFT      24
  71 #define GICD_IIDR_PRODUCT_ID_MASK       (0xff << GICD_IIDR_PRODUCT_ID_SHIFT)
  72
  73
  74 /*
  75  * In systems with a single security state (what we emulate in KVM)
  76  * the meaning of the interrupt group enable bits is slightly different
  77  */
  78 #define GICD_CTLR_ENABLE_SS_G1          (1U << 1)
  79 #define GICD_CTLR_ENABLE_SS_G0          (1U << 0)
  80
  81 #define GICD_TYPER_RSS                  (1U << 26)
  82 #define GICD_TYPER_LPIS                 (1U << 17)
  83 #define GICD_TYPER_MBIS                 (1U << 16)
  84
  85 #define GICD_TYPER_ID_BITS(typer)       ((((typer) >> 19) & 0x1f) + 1)
  86 #define GICD_TYPER_NUM_LPIS(typer)      ((((typer) >> 11) & 0x1f) + 1)
  87 #define GICD_TYPER_IRQS(typer)          ((((typer) & 0x1f) + 1) * 32)
  88
  89 #define GICD_IROUTER_SPI_MODE_ONE       (0U << 31)
  90 #define GICD_IROUTER_SPI_MODE_ANY       (1U << 31)
  91
  92 #define GIC_PIDR2_ARCH_MASK             0xf0
  93 #define GIC_PIDR2_ARCH_GICv3            0x30
  94 #define GIC_PIDR2_ARCH_GICv4            0x40
  95
  96 #define GIC_V3_DIST_SIZE                0x10000
  97
  98 /*
  99  * Re-Distributor registers, offsets from RD_base
 100  */
 101 #define GICR_CTLR                       GICD_CTLR
 102 #define GICR_IIDR                       0x0004
 103 #define GICR_TYPER                      0x0008
 104 #define GICR_STATUSR                    GICD_STATUSR
 105 #define GICR_WAKER                      0x0014
 106 #define GICR_SETLPIR                    0x0040
 107 #define GICR_CLRLPIR                    0x0048
 108 #define GICR_SEIR                       GICD_SEIR
 109 #define GICR_PROPBASER                  0x0070
 110 #define GICR_PENDBASER                  0x0078
 111 #define GICR_INVLPIR                    0x00A0
 112 #define GICR_INVALLR                    0x00B0
 113 #define GICR_SYNCR                      0x00C0
 114 #define GICR_MOVLPIR                    0x0100
 115 #define GICR_MOVALLR                    0x0110
 116 #define GICR_IDREGS                     GICD_IDREGS
 117 #define GICR_PIDR2                      GICD_PIDR2
 118
 119 #define GICR_CTLR_ENABLE_LPIS           (1UL << 0)
 120 #define GICR_CTLR_RWP                   (1UL << 3)
 121
 122 #define GICR_TYPER_CPU_NUMBER(r)        (((r) >> 8) & 0xffff)
 123
 124 #define GICR_WAKER_ProcessorSleep       (1U << 1)
 125 #define GICR_WAKER_ChildrenAsleep       (1U << 2)
 126
 127 #define GIC_BASER_CACHE_nCnB            0ULL
 128 #define GIC_BASER_CACHE_SameAsInner     0ULL
 129 #define GIC_BASER_CACHE_nC              1ULL
 130 #define GIC_BASER_CACHE_RaWt            2ULL
 131 #define GIC_BASER_CACHE_RaWb            3ULL
 132 #define GIC_BASER_CACHE_WaWt            4ULL
 133 #define GIC_BASER_CACHE_WaWb            5ULL
 134 #define GIC_BASER_CACHE_RaWaWt          6ULL
 135 #define GIC_BASER_CACHE_RaWaWb          7ULL
 136 #define GIC_BASER_CACHE_MASK            7ULL
 137 #define GIC_BASER_NonShareable          0ULL
 138 #define GIC_BASER_InnerShareable        1ULL
 139 #define GIC_BASER_OuterShareable        2ULL
 140 #define GIC_BASER_SHAREABILITY_MASK     3ULL
 141
 142 #define GIC_BASER_CACHEABILITY(reg, inner_outer, type)                  \
 143         (GIC_BASER_CACHE_##type << reg##_##inner_outer##_CACHEABILITY_SHIFT)
 144
 145 #define GIC_BASER_SHAREABILITY(reg, type)                               \
 146         (GIC_BASER_##type << reg##_SHAREABILITY_SHIFT)
 147
 148 /* encode a size field of width @w containing @n - 1 units */
 149 #define GIC_ENCODE_SZ(n, w) (((unsigned long)(n) - 1) & GENMASK_ULL(((w) - 1), 0))
 150
 151 #define GICR_PROPBASER_SHAREABILITY_SHIFT               (10)
 152 #define GICR_PROPBASER_INNER_CACHEABILITY_SHIFT         (7)
 153 #define GICR_PROPBASER_OUTER_CACHEABILITY_SHIFT         (56)
 154 #define GICR_PROPBASER_SHAREABILITY_MASK                                \
 155         GIC_BASER_SHAREABILITY(GICR_PROPBASER, SHAREABILITY_MASK)
 156 #define GICR_PROPBASER_INNER_CACHEABILITY_MASK                          \
 157         GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, MASK)
 158 #define GICR_PROPBASER_OUTER_CACHEABILITY_MASK                          \
 159         GIC_BASER_CACHEABILITY(GICR_PROPBASER, OUTER, MASK)
 160 #define GICR_PROPBASER_CACHEABILITY_MASK GICR_PROPBASER_INNER_CACHEABILITY_MASK
 161
 162 #define GICR_PROPBASER_InnerShareable                                   \
 163         GIC_BASER_SHAREABILITY(GICR_PROPBASER, InnerShareable)
 164
 165 #define GICR_PROPBASER_nCnB     GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, nCnB)
 166 #define GICR_PROPBASER_nC       GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, nC)
 167 #define GICR_PROPBASER_RaWt     GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWt)
 168 #define GICR_PROPBASER_RaWb     GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWb)
 169 #define GICR_PROPBASER_WaWt     GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WaWt)
 170 #define GICR_PROPBASER_WaWb     GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WaWb)
 171 #define GICR_PROPBASER_RaWaWt   GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWaWt)
 172 #define GICR_PROPBASER_RaWaWb   GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWaWb)
 173
 174 #define GICR_PROPBASER_IDBITS_MASK                      (0x1f)
 175 #define GICR_PROPBASER_ADDRESS(x)       ((x) & GENMASK_ULL(51, 12))
 176 #define GICR_PENDBASER_ADDRESS(x)       ((x) & GENMASK_ULL(51, 16))
 177
 178 #define GICR_PENDBASER_SHAREABILITY_SHIFT               (10)
 179 #define GICR_PENDBASER_INNER_CACHEABILITY_SHIFT         (7)
 180 #define GICR_PENDBASER_OUTER_CACHEABILITY_SHIFT         (56)
 181 #define GICR_PENDBASER_SHAREABILITY_MASK                                \
 182         GIC_BASER_SHAREABILITY(GICR_PENDBASER, SHAREABILITY_MASK)
 183 #define GICR_PENDBASER_INNER_CACHEABILITY_MASK                          \
 184         GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, MASK)
 185 #define GICR_PENDBASER_OUTER_CACHEABILITY_MASK                          \
 186         GIC_BASER_CACHEABILITY(GICR_PENDBASER, OUTER, MASK)
 187 #define GICR_PENDBASER_CACHEABILITY_MASK GICR_PENDBASER_INNER_CACHEABILITY_MASK
 188
 189 #define GICR_PENDBASER_InnerShareable                                   \
 190         GIC_BASER_SHAREABILITY(GICR_PENDBASER, InnerShareable)
 191
 192 #define GICR_PENDBASER_nCnB     GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, nCnB)
 193 #define GICR_PENDBASER_nC       GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, nC)
 194 #define GICR_PENDBASER_RaWt     GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWt)
 195 #define GICR_PENDBASER_RaWb     GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWb)
 196 #define GICR_PENDBASER_WaWt     GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WaWt)
 197 #define GICR_PENDBASER_WaWb     GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WaWb)
 198 #define GICR_PENDBASER_RaWaWt   GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWaWt)
 199 #define GICR_PENDBASER_RaWaWb   GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWaWb)
 200
 201 #define GICR_PENDBASER_PTZ                              BIT_ULL(62)
 202
 203 /*
 204  * Re-Distributor registers, offsets from SGI_base
 205  */
 206 #define GICR_IGROUPR0                   GICD_IGROUPR
 207 #define GICR_ISENABLER0                 GICD_ISENABLER
 208 #define GICR_ICENABLER0                 GICD_ICENABLER
 209 #define GICR_ISPENDR0                   GICD_ISPENDR
 210 #define GICR_ICPENDR0                   GICD_ICPENDR
 211 #define GICR_ISACTIVER0                 GICD_ISACTIVER
 212 #define GICR_ICACTIVER0                 GICD_ICACTIVER
 213 #define GICR_IPRIORITYR0                GICD_IPRIORITYR
 214 #define GICR_ICFGR0                     GICD_ICFGR
 215 #define GICR_IGRPMODR0                  GICD_IGRPMODR
 216 #define GICR_NSACR                      GICD_NSACR
 217
 218 #define GICR_TYPER_PLPIS                (1U << 0)
 219 #define GICR_TYPER_VLPIS                (1U << 1)
 220 #define GICR_TYPER_DirectLPIS           (1U << 3)
 221 #define GICR_TYPER_LAST                 (1U << 4)
 222
 223 #define GIC_V3_REDIST_SIZE              0x20000
 224
 225 #define LPI_PROP_GROUP1                 (1 << 1)
 226 #define LPI_PROP_ENABLED                (1 << 0)
 227
 228 /*
 229  * Re-Distributor registers, offsets from VLPI_base
 230  */
 231 #define GICR_VPROPBASER                 0x0070
 232
 233 #define GICR_VPROPBASER_IDBITS_MASK     0x1f
 234
 235 #define GICR_VPROPBASER_SHAREABILITY_SHIFT              (10)
 236 #define GICR_VPROPBASER_INNER_CACHEABILITY_SHIFT        (7)
 237 #define GICR_VPROPBASER_OUTER_CACHEABILITY_SHIFT        (56)
 238
 239 #define GICR_VPROPBASER_SHAREABILITY_MASK                               \
 240         GIC_BASER_SHAREABILITY(GICR_VPROPBASER, SHAREABILITY_MASK)
 241 #define GICR_VPROPBASER_INNER_CACHEABILITY_MASK                         \
 242         GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, MASK)
 243 #define GICR_VPROPBASER_OUTER_CACHEABILITY_MASK                         \
 244         GIC_BASER_CACHEABILITY(GICR_VPROPBASER, OUTER, MASK)
 245 #define GICR_VPROPBASER_CACHEABILITY_MASK                               \
 246         GICR_VPROPBASER_INNER_CACHEABILITY_MASK
 247
 248 #define GICR_VPROPBASER_InnerShareable                                  \
 249         GIC_BASER_SHAREABILITY(GICR_VPROPBASER, InnerShareable)
 250
 251 #define GICR_VPROPBASER_nCnB    GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, nCnB)
 252 #define GICR_VPROPBASER_nC      GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, nC)
 253 #define GICR_VPROPBASER_RaWt    GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWt)
 254 #define GICR_VPROPBASER_RaWb    GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWb)
 255 #define GICR_VPROPBASER_WaWt    GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, WaWt)
 256 #define GICR_VPROPBASER_WaWb    GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, WaWb)
 257 #define GICR_VPROPBASER_RaWaWt  GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWaWt)
 258 #define GICR_VPROPBASER_RaWaWb  GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWaWb)
 259
 260 #define GICR_VPENDBASER                 0x0078
 261
 262 #define GICR_VPENDBASER_SHAREABILITY_SHIFT              (10)
 263 #define GICR_VPENDBASER_INNER_CACHEABILITY_SHIFT        (7)
 264 #define GICR_VPENDBASER_OUTER_CACHEABILITY_SHIFT        (56)
 265 #define GICR_VPENDBASER_SHAREABILITY_MASK                               \
 266         GIC_BASER_SHAREABILITY(GICR_VPENDBASER, SHAREABILITY_MASK)
 267 #define GICR_VPENDBASER_INNER_CACHEABILITY_MASK                         \
 268         GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, MASK)
 269 #define GICR_VPENDBASER_OUTER_CACHEABILITY_MASK                         \
 270         GIC_BASER_CACHEABILITY(GICR_VPENDBASER, OUTER, MASK)
 271 #define GICR_VPENDBASER_CACHEABILITY_MASK                               \
 272         GICR_VPENDBASER_INNER_CACHEABILITY_MASK
 273
 274 #define GICR_VPENDBASER_NonShareable                                    \
 275         GIC_BASER_SHAREABILITY(GICR_VPENDBASER, NonShareable)
 276
 277 #define GICR_VPENDBASER_nCnB    GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, nCnB)
 278 #define GICR_VPENDBASER_nC      GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, nC)
 279 #define GICR_VPENDBASER_RaWt    GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWt)
 280 #define GICR_VPENDBASER_RaWb    GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWb)
 281 #define GICR_VPENDBASER_WaWt    GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, WaWt)
 282 #define GICR_VPENDBASER_WaWb    GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, WaWb)
 283 #define GICR_VPENDBASER_RaWaWt  GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWaWt)
 284 #define GICR_VPENDBASER_RaWaWb  GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWaWb)
 285
 286 #define GICR_VPENDBASER_Dirty           (1ULL << 60)
 287 #define GICR_VPENDBASER_PendingLast     (1ULL << 61)
 288 #define GICR_VPENDBASER_IDAI            (1ULL << 62)
 289 #define GICR_VPENDBASER_Valid           (1ULL << 63)
 290
 291 /*
 292  * ITS registers, offsets from ITS_base
 293  */
 294 #define GITS_CTLR                       0x0000
 295 #define GITS_IIDR                       0x0004
 296 #define GITS_TYPER                      0x0008
 297 #define GITS_CBASER                     0x0080
 298 #define GITS_CWRITER                    0x0088
 299 #define GITS_CREADR                     0x0090
 300 #define GITS_BASER                      0x0100
 301 #define GITS_IDREGS_BASE                0xffd0
 302 #define GITS_PIDR0                      0xffe0
 303 #define GITS_PIDR1                      0xffe4
 304 #define GITS_PIDR2                      GICR_PIDR2
 305 #define GITS_PIDR4                      0xffd0
 306 #define GITS_CIDR0                      0xfff0
 307 #define GITS_CIDR1                      0xfff4
 308 #define GITS_CIDR2                      0xfff8
 309 #define GITS_CIDR3                      0xfffc
 310
 311 #define GITS_TRANSLATER                 0x10040
 312
 313 #define GITS_CTLR_ENABLE                (1U << 0)
 314 #define GITS_CTLR_ImDe                  (1U << 1)
 315 #define GITS_CTLR_ITS_NUMBER_SHIFT      4
 316 #define GITS_CTLR_ITS_NUMBER            (0xFU << GITS_CTLR_ITS_NUMBER_SHIFT)
 317 #define GITS_CTLR_QUIESCENT             (1U << 31)
 318
 319 #define GITS_TYPER_PLPIS                (1UL << 0)
 320 #define GITS_TYPER_VLPIS                (1UL << 1)
 321 #define GITS_TYPER_ITT_ENTRY_SIZE_SHIFT 4
 322 #define GITS_TYPER_ITT_ENTRY_SIZE(r)    ((((r) >> GITS_TYPER_ITT_ENTRY_SIZE_SHIFT) & 0xf) + 1)
 323 #define GITS_TYPER_IDBITS_SHIFT         8
 324 #define GITS_TYPER_DEVBITS_SHIFT        13
 325 #define GITS_TYPER_DEVBITS(r)           ((((r) >> GITS_TYPER_DEVBITS_SHIFT) & 0x1f) + 1)
 326 #define GITS_TYPER_PTA                  (1UL << 19)
 327 #define GITS_TYPER_HCC_SHIFT            24
 328 #define GITS_TYPER_HCC(r)               (((r) >> GITS_TYPER_HCC_SHIFT) & 0xff)
 329 #define GITS_TYPER_VMOVP                (1ULL << 37)
 330
 331 #define GITS_IIDR_REV_SHIFT             12
 332 #define GITS_IIDR_REV_MASK              (0xf << GITS_IIDR_REV_SHIFT)
 333 #define GITS_IIDR_REV(r)                (((r) >> GITS_IIDR_REV_SHIFT) & 0xf)
 334 #define GITS_IIDR_PRODUCTID_SHIFT       24
 335
 336 #define GITS_CBASER_VALID                       (1ULL << 63)
 337 #define GITS_CBASER_SHAREABILITY_SHIFT          (10)
 338 #define GITS_CBASER_INNER_CACHEABILITY_SHIFT    (59)
 339 #define GITS_CBASER_OUTER_CACHEABILITY_SHIFT    (53)
 340 #define GITS_CBASER_SHAREABILITY_MASK                                   \
 341         GIC_BASER_SHAREABILITY(GITS_CBASER, SHAREABILITY_MASK)
 342 #define GITS_CBASER_INNER_CACHEABILITY_MASK                             \
 343         GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, MASK)
 344 #define GITS_CBASER_OUTER_CACHEABILITY_MASK                             \
 345         GIC_BASER_CACHEABILITY(GITS_CBASER, OUTER, MASK)
 346 #define GITS_CBASER_CACHEABILITY_MASK GITS_CBASER_INNER_CACHEABILITY_MASK
 347
 348 #define GITS_CBASER_InnerShareable                                      \
 349         GIC_BASER_SHAREABILITY(GITS_CBASER, InnerShareable)
 350
 351 #define GITS_CBASER_nCnB        GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, nCnB)
 352 #define GITS_CBASER_nC          GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, nC)
 353 #define GITS_CBASER_RaWt        GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWt)
 354 #define GITS_CBASER_RaWb        GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWb)
 355 #define GITS_CBASER_WaWt        GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, WaWt)
 356 #define GITS_CBASER_WaWb        GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, WaWb)
 357 #define GITS_CBASER_RaWaWt      GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWaWt)
 358 #define GITS_CBASER_RaWaWb      GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWaWb)
 359
 360 #define GITS_BASER_NR_REGS              8
 361
 362 #define GITS_BASER_VALID                        (1ULL << 63)
 363 #define GITS_BASER_INDIRECT                     (1ULL << 62)
 364
 365 #define GITS_BASER_INNER_CACHEABILITY_SHIFT     (59)
 366 #define GITS_BASER_OUTER_CACHEABILITY_SHIFT     (53)
 367 #define GITS_BASER_INNER_CACHEABILITY_MASK                              \
 368         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, MASK)
 369 #define GITS_BASER_CACHEABILITY_MASK            GITS_BASER_INNER_CACHEABILITY_MASK
 370 #define GITS_BASER_OUTER_CACHEABILITY_MASK                              \
 371         GIC_BASER_CACHEABILITY(GITS_BASER, OUTER, MASK)
 372 #define GITS_BASER_SHAREABILITY_MASK                                    \
 373         GIC_BASER_SHAREABILITY(GITS_BASER, SHAREABILITY_MASK)
 374
 375 #define GITS_BASER_nCnB         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, nCnB)
 376 #define GITS_BASER_nC           GIC_BASER_CACHEABILITY(GITS_BASER, INNER, nC)
 377 #define GITS_BASER_RaWt         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWt)
 378 #define GITS_BASER_RaWb         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWb)
 379 #define GITS_BASER_WaWt         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, WaWt)
 380 #define GITS_BASER_WaWb         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, WaWb)
 381 #define GITS_BASER_RaWaWt       GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWaWt)
 382 #define GITS_BASER_RaWaWb       GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWaWb)
 383
 384 #define GITS_BASER_TYPE_SHIFT                   (56)
 385 #define GITS_BASER_TYPE(r)              (((r) >> GITS_BASER_TYPE_SHIFT) & 7)
 386 #define GITS_BASER_ENTRY_SIZE_SHIFT             (48)
 387 #define GITS_BASER_ENTRY_SIZE(r)        ((((r) >> GITS_BASER_ENTRY_SIZE_SHIFT) & 0x1f) + 1)
 388 #define GITS_BASER_ENTRY_SIZE_MASK      GENMASK_ULL(52, 48)
 389 #define GITS_BASER_PHYS_52_to_48(phys)                                  \
 390         (((phys) & GENMASK_ULL(47, 16)) | (((phys) >> 48) & 0xf) << 12)
 391 #define GITS_BASER_SHAREABILITY_SHIFT   (10)
 392 #define GITS_BASER_InnerShareable                                       \
 393         GIC_BASER_SHAREABILITY(GITS_BASER, InnerShareable)
 394 #define GITS_BASER_PAGE_SIZE_SHIFT      (8)
 395 #define GITS_BASER_PAGE_SIZE_4K         (0ULL << GITS_BASER_PAGE_SIZE_SHIFT)
 396 #define GITS_BASER_PAGE_SIZE_16K        (1ULL << GITS_BASER_PAGE_SIZE_SHIFT)
 397 #define GITS_BASER_PAGE_SIZE_64K        (2ULL << GITS_BASER_PAGE_SIZE_SHIFT)
 398 #define GITS_BASER_PAGE_SIZE_MASK       (3ULL << GITS_BASER_PAGE_SIZE_SHIFT)
 399 #define GITS_BASER_PAGES_MAX            256
 400 #define GITS_BASER_PAGES_SHIFT          (0)
 401 #define GITS_BASER_NR_PAGES(r)          (((r) & 0xff) + 1)
 402
 403 #define GITS_BASER_TYPE_NONE            0
 404 #define GITS_BASER_TYPE_DEVICE          1
 405 #define GITS_BASER_TYPE_VCPU            2
 406 #define GITS_BASER_TYPE_RESERVED3       3
 407 #define GITS_BASER_TYPE_COLLECTION      4
 408 #define GITS_BASER_TYPE_RESERVED5       5
 409 #define GITS_BASER_TYPE_RESERVED6       6
 410 #define GITS_BASER_TYPE_RESERVED7       7
 411
 412 #define GITS_LVL1_ENTRY_SIZE           (8UL)
 413
 414 /*
 415  * ITS commands
 416  */
 417 #define GITS_CMD_MAPD                   0x08
 418 #define GITS_CMD_MAPC                   0x09
 419 #define GITS_CMD_MAPTI                  0x0a
 420 #define GITS_CMD_MAPI                   0x0b
 421 #define GITS_CMD_MOVI                   0x01
 422 #define GITS_CMD_DISCARD                0x0f
 423 #define GITS_CMD_INV                    0x0c
 424 #define GITS_CMD_MOVALL                 0x0e
 425 #define GITS_CMD_INVALL                 0x0d
 426 #define GITS_CMD_INT                    0x03
 427 #define GITS_CMD_CLEAR                  0x04
 428 #define GITS_CMD_SYNC                   0x05
 429
 430 /*
 431  * GICv4 ITS specific commands
 432  */
 433 #define GITS_CMD_GICv4(x)               ((x) | 0x20)
 434 #define GITS_CMD_VINVALL                GITS_CMD_GICv4(GITS_CMD_INVALL)
 435 #define GITS_CMD_VMAPP                  GITS_CMD_GICv4(GITS_CMD_MAPC)
 436 #define GITS_CMD_VMAPTI                 GITS_CMD_GICv4(GITS_CMD_MAPTI)
 437 #define GITS_CMD_VMOVI                  GITS_CMD_GICv4(GITS_CMD_MOVI)
 438 #define GITS_CMD_VSYNC                  GITS_CMD_GICv4(GITS_CMD_SYNC)
 439 /* VMOVP is the odd one, as it doesn't have a physical counterpart */
 440 #define GITS_CMD_VMOVP                  GITS_CMD_GICv4(2)
 441
 442 /*
 443  * ITS error numbers
 444  */
 445 #define E_ITS_MOVI_UNMAPPED_INTERRUPT           0x010107
 446 #define E_ITS_MOVI_UNMAPPED_COLLECTION          0x010109
 447 #define E_ITS_INT_UNMAPPED_INTERRUPT            0x010307
 448 #define E_ITS_CLEAR_UNMAPPED_INTERRUPT          0x010507
 449 #define E_ITS_MAPD_DEVICE_OOR                   0x010801
 450 #define E_ITS_MAPD_ITTSIZE_OOR                  0x010802
 451 #define E_ITS_MAPC_PROCNUM_OOR                  0x010902
 452 #define E_ITS_MAPC_COLLECTION_OOR               0x010903
 453 #define E_ITS_MAPTI_UNMAPPED_DEVICE             0x010a04
 454 #define E_ITS_MAPTI_ID_OOR                      0x010a05
 455 #define E_ITS_MAPTI_PHYSICALID_OOR              0x010a06
 456 #define E_ITS_INV_UNMAPPED_INTERRUPT            0x010c07
 457 #define E_ITS_INVALL_UNMAPPED_COLLECTION        0x010d09
 458 #define E_ITS_MOVALL_PROCNUM_OOR                0x010e01
 459 #define E_ITS_DISCARD_UNMAPPED_INTERRUPT        0x010f07
 460
 461 /*
 462  * CPU interface registers
 463  */
 464 #define ICC_CTLR_EL1_EOImode_SHIFT      (1)
 465 #define ICC_CTLR_EL1_EOImode_drop_dir   (0U << ICC_CTLR_EL1_EOImode_SHIFT)
 466 #define ICC_CTLR_EL1_EOImode_drop       (1U << ICC_CTLR_EL1_EOImode_SHIFT)
 467 #define ICC_CTLR_EL1_EOImode_MASK       (1 << ICC_CTLR_EL1_EOImode_SHIFT)
 468 #define ICC_CTLR_EL1_CBPR_SHIFT         0
 469 #define ICC_CTLR_EL1_CBPR_MASK          (1 << ICC_CTLR_EL1_CBPR_SHIFT)
 470 #define ICC_CTLR_EL1_PRI_BITS_SHIFT     8
 471 #define ICC_CTLR_EL1_PRI_BITS_MASK      (0x7 << ICC_CTLR_EL1_PRI_BITS_SHIFT)
 472 #define ICC_CTLR_EL1_ID_BITS_SHIFT      11
 473 #define ICC_CTLR_EL1_ID_BITS_MASK       (0x7 << ICC_CTLR_EL1_ID_BITS_SHIFT)
 474 #define ICC_CTLR_EL1_SEIS_SHIFT         14
 475 #define ICC_CTLR_EL1_SEIS_MASK          (0x1 << ICC_CTLR_EL1_SEIS_SHIFT)
 476 #define ICC_CTLR_EL1_A3V_SHIFT          15
 477 #define ICC_CTLR_EL1_A3V_MASK           (0x1 << ICC_CTLR_EL1_A3V_SHIFT)
 478 #define ICC_CTLR_EL1_RSS                (0x1 << 18)
 479 #define ICC_PMR_EL1_SHIFT               0
 480 #define ICC_PMR_EL1_MASK                (0xff << ICC_PMR_EL1_SHIFT)
 481 #define ICC_BPR0_EL1_SHIFT              0
 482 #define ICC_BPR0_EL1_MASK               (0x7 << ICC_BPR0_EL1_SHIFT)
 483 #define ICC_BPR1_EL1_SHIFT              0
 484 #define ICC_BPR1_EL1_MASK               (0x7 << ICC_BPR1_EL1_SHIFT)
 485 #define ICC_IGRPEN0_EL1_SHIFT           0
 486 #define ICC_IGRPEN0_EL1_MASK            (1 << ICC_IGRPEN0_EL1_SHIFT)
 487 #define ICC_IGRPEN1_EL1_SHIFT           0
 488 #define ICC_IGRPEN1_EL1_MASK            (1 << ICC_IGRPEN1_EL1_SHIFT)
 489 #define ICC_SRE_EL1_DIB                 (1U << 2)
 490 #define ICC_SRE_EL1_DFB                 (1U << 1)
 491 #define ICC_SRE_EL1_SRE                 (1U << 0)
 492
 493 /*
 494  * Hypervisor interface registers (SRE only)
 495  */
 496 #define ICH_LR_VIRTUAL_ID_MASK          ((1ULL << 32) - 1)
 497
 498 #define ICH_LR_EOI                      (1ULL << 41)
 499 #define ICH_LR_GROUP                    (1ULL << 60)
 500 #define ICH_LR_HW                       (1ULL << 61)
 501 #define ICH_LR_STATE                    (3ULL << 62)
 502 #define ICH_LR_PENDING_BIT              (1ULL << 62)
 503 #define ICH_LR_ACTIVE_BIT               (1ULL << 63)
 504 #define ICH_LR_PHYS_ID_SHIFT            32
 505 #define ICH_LR_PHYS_ID_MASK             (0x3ffULL << ICH_LR_PHYS_ID_SHIFT)
 506 #define ICH_LR_PRIORITY_SHIFT           48
 507 #define ICH_LR_PRIORITY_MASK            (0xffULL << ICH_LR_PRIORITY_SHIFT)
 508
 509 /* These are for GICv2 emulation only */
 510 #define GICH_LR_VIRTUALID               (0x3ffUL << 0)
 511 #define GICH_LR_PHYSID_CPUID_SHIFT      (10)
 512 #define GICH_LR_PHYSID_CPUID            (7UL << GICH_LR_PHYSID_CPUID_SHIFT)
 513
 514 #define ICH_MISR_EOI                    (1 << 0)
 515 #define ICH_MISR_U                      (1 << 1)
 516
 517 #define ICH_HCR_EN                      (1 << 0)
 518 #define ICH_HCR_UIE                     (1 << 1)
 519 #define ICH_HCR_NPIE                    (1 << 3)
 520 #define ICH_HCR_TC                      (1 << 10)
 521 #define ICH_HCR_TALL0                   (1 << 11)
 522 #define ICH_HCR_TALL1                   (1 << 12)
 523 #define ICH_HCR_EOIcount_SHIFT          27
 524 #define ICH_HCR_EOIcount_MASK           (0x1f << ICH_HCR_EOIcount_SHIFT)
 525
 526 #define ICH_VMCR_ACK_CTL_SHIFT          2
 527 #define ICH_VMCR_ACK_CTL_MASK           (1 << ICH_VMCR_ACK_CTL_SHIFT)
 528 #define ICH_VMCR_FIQ_EN_SHIFT           3
 529 #define ICH_VMCR_FIQ_EN_MASK            (1 << ICH_VMCR_FIQ_EN_SHIFT)
 530 #define ICH_VMCR_CBPR_SHIFT             4
 531 #define ICH_VMCR_CBPR_MASK              (1 << ICH_VMCR_CBPR_SHIFT)
 532 #define ICH_VMCR_EOIM_SHIFT             9
 533 #define ICH_VMCR_EOIM_MASK              (1 << ICH_VMCR_EOIM_SHIFT)
 534 #define ICH_VMCR_BPR1_SHIFT             18
 535 #define ICH_VMCR_BPR1_MASK              (7 << ICH_VMCR_BPR1_SHIFT)
 536 #define ICH_VMCR_BPR0_SHIFT             21
 537 #define ICH_VMCR_BPR0_MASK              (7 << ICH_VMCR_BPR0_SHIFT)
 538 #define ICH_VMCR_PMR_SHIFT              24
 539 #define ICH_VMCR_PMR_MASK               (0xffUL << ICH_VMCR_PMR_SHIFT)
 540 #define ICH_VMCR_ENG0_SHIFT             0
 541 #define ICH_VMCR_ENG0_MASK              (1 << ICH_VMCR_ENG0_SHIFT)
 542 #define ICH_VMCR_ENG1_SHIFT             1
 543 #define ICH_VMCR_ENG1_MASK              (1 << ICH_VMCR_ENG1_SHIFT)
 544
 545 #define ICH_VTR_PRI_BITS_SHIFT          29
 546 #define ICH_VTR_PRI_BITS_MASK           (7 << ICH_VTR_PRI_BITS_SHIFT)
 547 #define ICH_VTR_ID_BITS_SHIFT           23
 548 #define ICH_VTR_ID_BITS_MASK            (7 << ICH_VTR_ID_BITS_SHIFT)
 549 #define ICH_VTR_SEIS_SHIFT              22
 550 #define ICH_VTR_SEIS_MASK               (1 << ICH_VTR_SEIS_SHIFT)
 551 #define ICH_VTR_A3V_SHIFT               21
 552 #define ICH_VTR_A3V_MASK                (1 << ICH_VTR_A3V_SHIFT)
 553
 554 #define ICC_IAR1_EL1_SPURIOUS           0x3ff
 555
 556 #define ICC_SRE_EL2_SRE                 (1 << 0)
 557 #define ICC_SRE_EL2_ENABLE              (1 << 3)
 558
 559 #define ICC_SGI1R_TARGET_LIST_SHIFT     0
 560 #define ICC_SGI1R_TARGET_LIST_MASK      (0xffff << ICC_SGI1R_TARGET_LIST_SHIFT)
 561 #define ICC_SGI1R_AFFINITY_1_SHIFT      16
 562 #define ICC_SGI1R_AFFINITY_1_MASK       (0xff << ICC_SGI1R_AFFINITY_1_SHIFT)
 563 #define ICC_SGI1R_SGI_ID_SHIFT          24
 564 #define ICC_SGI1R_SGI_ID_MASK           (0xfULL << ICC_SGI1R_SGI_ID_SHIFT)
 565 #define ICC_SGI1R_AFFINITY_2_SHIFT      32
 566 #define ICC_SGI1R_AFFINITY_2_MASK       (0xffULL << ICC_SGI1R_AFFINITY_2_SHIFT)
 567 #define ICC_SGI1R_IRQ_ROUTING_MODE_BIT  40
 568 #define ICC_SGI1R_RS_SHIFT              44
 569 #define ICC_SGI1R_RS_MASK               (0xfULL << ICC_SGI1R_RS_SHIFT)
 570 #define ICC_SGI1R_AFFINITY_3_SHIFT      48
 571 #define ICC_SGI1R_AFFINITY_3_MASK       (0xffULL << ICC_SGI1R_AFFINITY_3_SHIFT)
 572
 573 #include <asm/arch_gicv3.h>
 574
 575 #ifndef __ASSEMBLY__
 576
 577 /*
 578  * We need a value to serve as a irq-type for LPIs. Choose one that will
 579  * hopefully pique the interest of the reviewer.
 580  */
 581 #define GIC_IRQ_TYPE_LPI                0xa110c8ed
 582
 583 struct rdists {
 584         struct {
 585                 void __iomem    *rd_base;
 586                 struct page     *pend_page;
 587                 phys_addr_t     phys_base;
 588         } __percpu              *rdist;
 589         struct page             *prop_page;
 590         u64                     flags;
 591         u32                     gicd_typer;
 592         bool                    has_vlpis;
 593         bool                    has_direct_lpi;
 594 };
 595
 596 struct irq_domain;
 597 struct fwnode_handle;
 598 int its_cpu_init(void);
 599 int its_init(struct fwnode_handle *handle, struct rdists *rdists,
 600              struct irq_domain *domain);
 601 int mbi_init(struct fwnode_handle *fwnode, struct irq_domain *parent);
 602
 603 static inline bool gic_enable_sre(void)
 604 {
 605         u32 val;
 606
 607         val = gic_read_sre();
 608         if (val & ICC_SRE_EL1_SRE)
 609                 return true;
 610
 611         val |= ICC_SRE_EL1_SRE;
 612         gic_write_sre(val);
 613         val = gic_read_sre();
 614
 615         return !!(val & ICC_SRE_EL1_SRE);
 616 }
 617
 618 #endif
 619
 620 #endif