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

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (C) 2013, 2014 ARM Limited, All Rights Reserved.
   4  * Author: Marc Zyngier <marc.zyngier@arm.com>
   5  */
   6 #ifndef __LINUX_IRQCHIP_ARM_GIC_V3_H
   7 #define __LINUX_IRQCHIP_ARM_GIC_V3_H
   8
   9 /*
  10  * Distributor registers. We assume we're running non-secure, with ARE
  11  * being set. Secure-only and non-ARE registers are not described.
  12  */
  13 #define GICD_CTLR                       0x0000
  14 #define GICD_TYPER                      0x0004
  15 #define GICD_IIDR                       0x0008
  16 #define GICD_TYPER2                     0x000C
  17 #define GICD_STATUSR                    0x0010
  18 #define GICD_SETSPI_NSR                 0x0040
  19 #define GICD_CLRSPI_NSR                 0x0048
  20 #define GICD_SETSPI_SR                  0x0050
  21 #define GICD_CLRSPI_SR                  0x0058
  22 #define GICD_IGROUPR                    0x0080
  23 #define GICD_ISENABLER                  0x0100
  24 #define GICD_ICENABLER                  0x0180
  25 #define GICD_ISPENDR                    0x0200
  26 #define GICD_ICPENDR                    0x0280
  27 #define GICD_ISACTIVER                  0x0300
  28 #define GICD_ICACTIVER                  0x0380
  29 #define GICD_IPRIORITYR                 0x0400
  30 #define GICD_ICFGR                      0x0C00
  31 #define GICD_IGRPMODR                   0x0D00
  32 #define GICD_NSACR                      0x0E00
  33 #define GICD_IGROUPRnE                  0x1000
  34 #define GICD_ISENABLERnE                0x1200
  35 #define GICD_ICENABLERnE                0x1400
  36 #define GICD_ISPENDRnE                  0x1600
  37 #define GICD_ICPENDRnE                  0x1800
  38 #define GICD_ISACTIVERnE                0x1A00
  39 #define GICD_ICACTIVERnE                0x1C00
  40 #define GICD_IPRIORITYRnE               0x2000
  41 #define GICD_ICFGRnE                    0x3000
  42 #define GICD_IROUTER                    0x6000
  43 #define GICD_IROUTERnE                  0x8000
  44 #define GICD_IDREGS                     0xFFD0
  45 #define GICD_PIDR2                      0xFFE8
  46
  47 #define ESPI_BASE_INTID                 4096
  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_nASSGIreq             (1U << 8)
  60 #define GICD_CTLR_DS                    (1U << 6)
  61 #define GICD_CTLR_ARE_NS                (1U << 4)
  62 #define GICD_CTLR_ENABLE_G1A            (1U << 1)
  63 #define GICD_CTLR_ENABLE_G1             (1U << 0)
  64
  65 #define GICD_IIDR_IMPLEMENTER_SHIFT     0
  66 #define GICD_IIDR_IMPLEMENTER_MASK      (0xfff << GICD_IIDR_IMPLEMENTER_SHIFT)
  67 #define GICD_IIDR_REVISION_SHIFT        12
  68 #define GICD_IIDR_REVISION_MASK         (0xf << GICD_IIDR_REVISION_SHIFT)
  69 #define GICD_IIDR_VARIANT_SHIFT         16
  70 #define GICD_IIDR_VARIANT_MASK          (0xf << GICD_IIDR_VARIANT_SHIFT)
  71 #define GICD_IIDR_PRODUCT_ID_SHIFT      24
  72 #define GICD_IIDR_PRODUCT_ID_MASK       (0xff << GICD_IIDR_PRODUCT_ID_SHIFT)
  73
  74
  75 /*
  76  * In systems with a single security state (what we emulate in KVM)
  77  * the meaning of the interrupt group enable bits is slightly different
  78  */
  79 #define GICD_CTLR_ENABLE_SS_G1          (1U << 1)
  80 #define GICD_CTLR_ENABLE_SS_G0          (1U << 0)
  81
  82 #define GICD_TYPER_RSS                  (1U << 26)
  83 #define GICD_TYPER_LPIS                 (1U << 17)
  84 #define GICD_TYPER_MBIS                 (1U << 16)
  85 #define GICD_TYPER_ESPI                 (1U << 8)
  86
  87 #define GICD_TYPER_ID_BITS(typer)       ((((typer) >> 19) & 0x1f) + 1)
  88 #define GICD_TYPER_NUM_LPIS(typer)      ((((typer) >> 11) & 0x1f) + 1)
  89 #define GICD_TYPER_SPIS(typer)          ((((typer) & 0x1f) + 1) * 32)
  90 #define GICD_TYPER_ESPIS(typer)                                         \
  91         (((typer) & GICD_TYPER_ESPI) ? GICD_TYPER_SPIS((typer) >> 27) : 0)
  92
  93 #define GICD_TYPER2_nASSGIcap           (1U << 8)
  94 #define GICD_TYPER2_VIL                 (1U << 7)
  95 #define GICD_TYPER2_VID                 GENMASK(4, 0)
  96
  97 #define GICD_IROUTER_SPI_MODE_ONE       (0U << 31)
  98 #define GICD_IROUTER_SPI_MODE_ANY       (1U << 31)
  99
 100 #define GIC_PIDR2_ARCH_MASK             0xf0
 101 #define GIC_PIDR2_ARCH_GICv3            0x30
 102 #define GIC_PIDR2_ARCH_GICv4            0x40
 103
 104 #define GIC_V3_DIST_SIZE                0x10000
 105
 106 #define GIC_PAGE_SIZE_4K                0ULL
 107 #define GIC_PAGE_SIZE_16K               1ULL
 108 #define GIC_PAGE_SIZE_64K               2ULL
 109 #define GIC_PAGE_SIZE_MASK              3ULL
 110
 111 /*
 112  * Re-Distributor registers, offsets from RD_base
 113  */
 114 #define GICR_CTLR                       GICD_CTLR
 115 #define GICR_IIDR                       0x0004
 116 #define GICR_TYPER                      0x0008
 117 #define GICR_STATUSR                    GICD_STATUSR
 118 #define GICR_WAKER                      0x0014
 119 #define GICR_SETLPIR                    0x0040
 120 #define GICR_CLRLPIR                    0x0048
 121 #define GICR_PROPBASER                  0x0070
 122 #define GICR_PENDBASER                  0x0078
 123 #define GICR_INVLPIR                    0x00A0
 124 #define GICR_INVALLR                    0x00B0
 125 #define GICR_SYNCR                      0x00C0
 126 #define GICR_IDREGS                     GICD_IDREGS
 127 #define GICR_PIDR2                      GICD_PIDR2
 128
 129 #define GICR_CTLR_ENABLE_LPIS           (1UL << 0)
 130 #define GICR_CTLR_RWP                   (1UL << 3)
 131
 132 #define GICR_TYPER_CPU_NUMBER(r)        (((r) >> 8) & 0xffff)
 133
 134 #define EPPI_BASE_INTID                 1056
 135
 136 #define GICR_TYPER_NR_PPIS(r)                                           \
 137         ({                                                              \
 138                 unsigned int __ppinum = ((r) >> 27) & 0x1f;             \
 139                 unsigned int __nr_ppis = 16;                            \
 140                 if (__ppinum == 1 || __ppinum == 2)                     \
 141                         __nr_ppis +=  __ppinum * 32;                    \
 142                                                                         \
 143                 __nr_ppis;                                              \
 144          })
 145
 146 #define GICR_WAKER_ProcessorSleep       (1U << 1)
 147 #define GICR_WAKER_ChildrenAsleep       (1U << 2)
 148
 149 #define GIC_BASER_CACHE_nCnB            0ULL
 150 #define GIC_BASER_CACHE_SameAsInner     0ULL
 151 #define GIC_BASER_CACHE_nC              1ULL
 152 #define GIC_BASER_CACHE_RaWt            2ULL
 153 #define GIC_BASER_CACHE_RaWb            3ULL
 154 #define GIC_BASER_CACHE_WaWt            4ULL
 155 #define GIC_BASER_CACHE_WaWb            5ULL
 156 #define GIC_BASER_CACHE_RaWaWt          6ULL
 157 #define GIC_BASER_CACHE_RaWaWb          7ULL
 158 #define GIC_BASER_CACHE_MASK            7ULL
 159 #define GIC_BASER_NonShareable          0ULL
 160 #define GIC_BASER_InnerShareable        1ULL
 161 #define GIC_BASER_OuterShareable        2ULL
 162 #define GIC_BASER_SHAREABILITY_MASK     3ULL
 163
 164 #define GIC_BASER_CACHEABILITY(reg, inner_outer, type)                  \
 165         (GIC_BASER_CACHE_##type << reg##_##inner_outer##_CACHEABILITY_SHIFT)
 166
 167 #define GIC_BASER_SHAREABILITY(reg, type)                               \
 168         (GIC_BASER_##type << reg##_SHAREABILITY_SHIFT)
 169
 170 /* encode a size field of width @w containing @n - 1 units */
 171 #define GIC_ENCODE_SZ(n, w) (((unsigned long)(n) - 1) & GENMASK_ULL(((w) - 1), 0))
 172
 173 #define GICR_PROPBASER_SHAREABILITY_SHIFT               (10)
 174 #define GICR_PROPBASER_INNER_CACHEABILITY_SHIFT         (7)
 175 #define GICR_PROPBASER_OUTER_CACHEABILITY_SHIFT         (56)
 176 #define GICR_PROPBASER_SHAREABILITY_MASK                                \
 177         GIC_BASER_SHAREABILITY(GICR_PROPBASER, SHAREABILITY_MASK)
 178 #define GICR_PROPBASER_INNER_CACHEABILITY_MASK                          \
 179         GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, MASK)
 180 #define GICR_PROPBASER_OUTER_CACHEABILITY_MASK                          \
 181         GIC_BASER_CACHEABILITY(GICR_PROPBASER, OUTER, MASK)
 182 #define GICR_PROPBASER_CACHEABILITY_MASK GICR_PROPBASER_INNER_CACHEABILITY_MASK
 183
 184 #define GICR_PROPBASER_InnerShareable                                   \
 185         GIC_BASER_SHAREABILITY(GICR_PROPBASER, InnerShareable)
 186
 187 #define GICR_PROPBASER_nCnB     GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, nCnB)
 188 #define GICR_PROPBASER_nC       GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, nC)
 189 #define GICR_PROPBASER_RaWt     GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWt)
 190 #define GICR_PROPBASER_RaWb     GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWb)
 191 #define GICR_PROPBASER_WaWt     GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WaWt)
 192 #define GICR_PROPBASER_WaWb     GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WaWb)
 193 #define GICR_PROPBASER_RaWaWt   GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWaWt)
 194 #define GICR_PROPBASER_RaWaWb   GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWaWb)
 195
 196 #define GICR_PROPBASER_IDBITS_MASK                      (0x1f)
 197 #define GICR_PROPBASER_ADDRESS(x)       ((x) & GENMASK_ULL(51, 12))
 198 #define GICR_PENDBASER_ADDRESS(x)       ((x) & GENMASK_ULL(51, 16))
 199
 200 #define GICR_PENDBASER_SHAREABILITY_SHIFT               (10)
 201 #define GICR_PENDBASER_INNER_CACHEABILITY_SHIFT         (7)
 202 #define GICR_PENDBASER_OUTER_CACHEABILITY_SHIFT         (56)
 203 #define GICR_PENDBASER_SHAREABILITY_MASK                                \
 204         GIC_BASER_SHAREABILITY(GICR_PENDBASER, SHAREABILITY_MASK)
 205 #define GICR_PENDBASER_INNER_CACHEABILITY_MASK                          \
 206         GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, MASK)
 207 #define GICR_PENDBASER_OUTER_CACHEABILITY_MASK                          \
 208         GIC_BASER_CACHEABILITY(GICR_PENDBASER, OUTER, MASK)
 209 #define GICR_PENDBASER_CACHEABILITY_MASK GICR_PENDBASER_INNER_CACHEABILITY_MASK
 210
 211 #define GICR_PENDBASER_InnerShareable                                   \
 212         GIC_BASER_SHAREABILITY(GICR_PENDBASER, InnerShareable)
 213
 214 #define GICR_PENDBASER_nCnB     GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, nCnB)
 215 #define GICR_PENDBASER_nC       GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, nC)
 216 #define GICR_PENDBASER_RaWt     GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWt)
 217 #define GICR_PENDBASER_RaWb     GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWb)
 218 #define GICR_PENDBASER_WaWt     GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WaWt)
 219 #define GICR_PENDBASER_WaWb     GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WaWb)
 220 #define GICR_PENDBASER_RaWaWt   GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWaWt)
 221 #define GICR_PENDBASER_RaWaWb   GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWaWb)
 222
 223 #define GICR_PENDBASER_PTZ                              BIT_ULL(62)
 224
 225 /*
 226  * Re-Distributor registers, offsets from SGI_base
 227  */
 228 #define GICR_IGROUPR0                   GICD_IGROUPR
 229 #define GICR_ISENABLER0                 GICD_ISENABLER
 230 #define GICR_ICENABLER0                 GICD_ICENABLER
 231 #define GICR_ISPENDR0                   GICD_ISPENDR
 232 #define GICR_ICPENDR0                   GICD_ICPENDR
 233 #define GICR_ISACTIVER0                 GICD_ISACTIVER
 234 #define GICR_ICACTIVER0                 GICD_ICACTIVER
 235 #define GICR_IPRIORITYR0                GICD_IPRIORITYR
 236 #define GICR_ICFGR0                     GICD_ICFGR
 237 #define GICR_IGRPMODR0                  GICD_IGRPMODR
 238 #define GICR_NSACR                      GICD_NSACR
 239
 240 #define GICR_TYPER_PLPIS                (1U << 0)
 241 #define GICR_TYPER_VLPIS                (1U << 1)
 242 #define GICR_TYPER_DIRTY                (1U << 2)
 243 #define GICR_TYPER_DirectLPIS           (1U << 3)
 244 #define GICR_TYPER_LAST                 (1U << 4)
 245 #define GICR_TYPER_RVPEID               (1U << 7)
 246 #define GICR_TYPER_COMMON_LPI_AFF       GENMASK_ULL(25, 24)
 247 #define GICR_TYPER_AFFINITY             GENMASK_ULL(63, 32)
 248
 249 #define GICR_INVLPIR_INTID              GENMASK_ULL(31, 0)
 250 #define GICR_INVLPIR_VPEID              GENMASK_ULL(47, 32)
 251 #define GICR_INVLPIR_V                  GENMASK_ULL(63, 63)
 252
 253 #define GICR_INVALLR_VPEID              GICR_INVLPIR_VPEID
 254 #define GICR_INVALLR_V                  GICR_INVLPIR_V
 255
 256 #define GIC_V3_REDIST_SIZE              0x20000
 257
 258 #define LPI_PROP_GROUP1                 (1 << 1)
 259 #define LPI_PROP_ENABLED                (1 << 0)
 260
 261 /*
 262  * Re-Distributor registers, offsets from VLPI_base
 263  */
 264 #define GICR_VPROPBASER                 0x0070
 265
 266 #define GICR_VPROPBASER_IDBITS_MASK     0x1f
 267
 268 #define GICR_VPROPBASER_SHAREABILITY_SHIFT              (10)
 269 #define GICR_VPROPBASER_INNER_CACHEABILITY_SHIFT        (7)
 270 #define GICR_VPROPBASER_OUTER_CACHEABILITY_SHIFT        (56)
 271
 272 #define GICR_VPROPBASER_SHAREABILITY_MASK                               \
 273         GIC_BASER_SHAREABILITY(GICR_VPROPBASER, SHAREABILITY_MASK)
 274 #define GICR_VPROPBASER_INNER_CACHEABILITY_MASK                         \
 275         GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, MASK)
 276 #define GICR_VPROPBASER_OUTER_CACHEABILITY_MASK                         \
 277         GIC_BASER_CACHEABILITY(GICR_VPROPBASER, OUTER, MASK)
 278 #define GICR_VPROPBASER_CACHEABILITY_MASK                               \
 279         GICR_VPROPBASER_INNER_CACHEABILITY_MASK
 280
 281 #define GICR_VPROPBASER_InnerShareable                                  \
 282         GIC_BASER_SHAREABILITY(GICR_VPROPBASER, InnerShareable)
 283
 284 #define GICR_VPROPBASER_nCnB    GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, nCnB)
 285 #define GICR_VPROPBASER_nC      GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, nC)
 286 #define GICR_VPROPBASER_RaWt    GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWt)
 287 #define GICR_VPROPBASER_RaWb    GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWb)
 288 #define GICR_VPROPBASER_WaWt    GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, WaWt)
 289 #define GICR_VPROPBASER_WaWb    GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, WaWb)
 290 #define GICR_VPROPBASER_RaWaWt  GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWaWt)
 291 #define GICR_VPROPBASER_RaWaWb  GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWaWb)
 292
 293 /*
 294  * GICv4.1 VPROPBASER reinvention. A subtle mix between the old
 295  * VPROPBASER and ITS_BASER. Just not quite any of the two.
 296  */
 297 #define GICR_VPROPBASER_4_1_VALID       (1ULL << 63)
 298 #define GICR_VPROPBASER_4_1_ENTRY_SIZE  GENMASK_ULL(61, 59)
 299 #define GICR_VPROPBASER_4_1_INDIRECT    (1ULL << 55)
 300 #define GICR_VPROPBASER_4_1_PAGE_SIZE   GENMASK_ULL(54, 53)
 301 #define GICR_VPROPBASER_4_1_Z           (1ULL << 52)
 302 #define GICR_VPROPBASER_4_1_ADDR        GENMASK_ULL(51, 12)
 303 #define GICR_VPROPBASER_4_1_SIZE        GENMASK_ULL(6, 0)
 304
 305 #define GICR_VPENDBASER                 0x0078
 306
 307 #define GICR_VPENDBASER_SHAREABILITY_SHIFT              (10)
 308 #define GICR_VPENDBASER_INNER_CACHEABILITY_SHIFT        (7)
 309 #define GICR_VPENDBASER_OUTER_CACHEABILITY_SHIFT        (56)
 310 #define GICR_VPENDBASER_SHAREABILITY_MASK                               \
 311         GIC_BASER_SHAREABILITY(GICR_VPENDBASER, SHAREABILITY_MASK)
 312 #define GICR_VPENDBASER_INNER_CACHEABILITY_MASK                         \
 313         GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, MASK)
 314 #define GICR_VPENDBASER_OUTER_CACHEABILITY_MASK                         \
 315         GIC_BASER_CACHEABILITY(GICR_VPENDBASER, OUTER, MASK)
 316 #define GICR_VPENDBASER_CACHEABILITY_MASK                               \
 317         GICR_VPENDBASER_INNER_CACHEABILITY_MASK
 318
 319 #define GICR_VPENDBASER_NonShareable                                    \
 320         GIC_BASER_SHAREABILITY(GICR_VPENDBASER, NonShareable)
 321
 322 #define GICR_VPENDBASER_InnerShareable                                  \
 323         GIC_BASER_SHAREABILITY(GICR_VPENDBASER, InnerShareable)
 324
 325 #define GICR_VPENDBASER_nCnB    GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, nCnB)
 326 #define GICR_VPENDBASER_nC      GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, nC)
 327 #define GICR_VPENDBASER_RaWt    GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWt)
 328 #define GICR_VPENDBASER_RaWb    GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWb)
 329 #define GICR_VPENDBASER_WaWt    GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, WaWt)
 330 #define GICR_VPENDBASER_WaWb    GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, WaWb)
 331 #define GICR_VPENDBASER_RaWaWt  GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWaWt)
 332 #define GICR_VPENDBASER_RaWaWb  GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWaWb)
 333
 334 #define GICR_VPENDBASER_Dirty           (1ULL << 60)
 335 #define GICR_VPENDBASER_PendingLast     (1ULL << 61)
 336 #define GICR_VPENDBASER_IDAI            (1ULL << 62)
 337 #define GICR_VPENDBASER_Valid           (1ULL << 63)
 338
 339 /*
 340  * GICv4.1 VPENDBASER, used for VPE residency. On top of these fields,
 341  * also use the above Valid, PendingLast and Dirty.
 342  */
 343 #define GICR_VPENDBASER_4_1_DB          (1ULL << 62)
 344 #define GICR_VPENDBASER_4_1_VGRP0EN     (1ULL << 59)
 345 #define GICR_VPENDBASER_4_1_VGRP1EN     (1ULL << 58)
 346 #define GICR_VPENDBASER_4_1_VPEID       GENMASK_ULL(15, 0)
 347
 348 #define GICR_VSGIR                      0x0080
 349
 350 #define GICR_VSGIR_VPEID                GENMASK(15, 0)
 351
 352 #define GICR_VSGIPENDR                  0x0088
 353
 354 #define GICR_VSGIPENDR_BUSY             (1U << 31)
 355 #define GICR_VSGIPENDR_PENDING          GENMASK(15, 0)
 356
 357 /*
 358  * ITS registers, offsets from ITS_base
 359  */
 360 #define GITS_CTLR                       0x0000
 361 #define GITS_IIDR                       0x0004
 362 #define GITS_TYPER                      0x0008
 363 #define GITS_MPIDR                      0x0018
 364 #define GITS_CBASER                     0x0080
 365 #define GITS_CWRITER                    0x0088
 366 #define GITS_CREADR                     0x0090
 367 #define GITS_BASER                      0x0100
 368 #define GITS_IDREGS_BASE                0xffd0
 369 #define GITS_PIDR0                      0xffe0
 370 #define GITS_PIDR1                      0xffe4
 371 #define GITS_PIDR2                      GICR_PIDR2
 372 #define GITS_PIDR4                      0xffd0
 373 #define GITS_CIDR0                      0xfff0
 374 #define GITS_CIDR1                      0xfff4
 375 #define GITS_CIDR2                      0xfff8
 376 #define GITS_CIDR3                      0xfffc
 377
 378 #define GITS_TRANSLATER                 0x10040
 379
 380 #define GITS_SGIR                       0x20020
 381
 382 #define GITS_SGIR_VPEID                 GENMASK_ULL(47, 32)
 383 #define GITS_SGIR_VINTID                GENMASK_ULL(3, 0)
 384
 385 #define GITS_CTLR_ENABLE                (1U << 0)
 386 #define GITS_CTLR_ImDe                  (1U << 1)
 387 #define GITS_CTLR_ITS_NUMBER_SHIFT      4
 388 #define GITS_CTLR_ITS_NUMBER            (0xFU << GITS_CTLR_ITS_NUMBER_SHIFT)
 389 #define GITS_CTLR_QUIESCENT             (1U << 31)
 390
 391 #define GITS_TYPER_PLPIS                (1UL << 0)
 392 #define GITS_TYPER_VLPIS                (1UL << 1)
 393 #define GITS_TYPER_ITT_ENTRY_SIZE_SHIFT 4
 394 #define GITS_TYPER_ITT_ENTRY_SIZE       GENMASK_ULL(7, 4)
 395 #define GITS_TYPER_IDBITS_SHIFT         8
 396 #define GITS_TYPER_DEVBITS_SHIFT        13
 397 #define GITS_TYPER_DEVBITS              GENMASK_ULL(17, 13)
 398 #define GITS_TYPER_PTA                  (1UL << 19)
 399 #define GITS_TYPER_HCC_SHIFT            24
 400 #define GITS_TYPER_HCC(r)               (((r) >> GITS_TYPER_HCC_SHIFT) & 0xff)
 401 #define GITS_TYPER_VMOVP                (1ULL << 37)
 402 #define GITS_TYPER_VMAPP                (1ULL << 40)
 403 #define GITS_TYPER_SVPET                GENMASK_ULL(42, 41)
 404
 405 #define GITS_IIDR_REV_SHIFT             12
 406 #define GITS_IIDR_REV_MASK              (0xf << GITS_IIDR_REV_SHIFT)
 407 #define GITS_IIDR_REV(r)                (((r) >> GITS_IIDR_REV_SHIFT) & 0xf)
 408 #define GITS_IIDR_PRODUCTID_SHIFT       24
 409
 410 #define GITS_CBASER_VALID                       (1ULL << 63)
 411 #define GITS_CBASER_SHAREABILITY_SHIFT          (10)
 412 #define GITS_CBASER_INNER_CACHEABILITY_SHIFT    (59)
 413 #define GITS_CBASER_OUTER_CACHEABILITY_SHIFT    (53)
 414 #define GITS_CBASER_SHAREABILITY_MASK                                   \
 415         GIC_BASER_SHAREABILITY(GITS_CBASER, SHAREABILITY_MASK)
 416 #define GITS_CBASER_INNER_CACHEABILITY_MASK                             \
 417         GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, MASK)
 418 #define GITS_CBASER_OUTER_CACHEABILITY_MASK                             \
 419         GIC_BASER_CACHEABILITY(GITS_CBASER, OUTER, MASK)
 420 #define GITS_CBASER_CACHEABILITY_MASK GITS_CBASER_INNER_CACHEABILITY_MASK
 421
 422 #define GITS_CBASER_InnerShareable                                      \
 423         GIC_BASER_SHAREABILITY(GITS_CBASER, InnerShareable)
 424
 425 #define GITS_CBASER_nCnB        GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, nCnB)
 426 #define GITS_CBASER_nC          GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, nC)
 427 #define GITS_CBASER_RaWt        GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWt)
 428 #define GITS_CBASER_RaWb        GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWb)
 429 #define GITS_CBASER_WaWt        GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, WaWt)
 430 #define GITS_CBASER_WaWb        GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, WaWb)
 431 #define GITS_CBASER_RaWaWt      GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWaWt)
 432 #define GITS_CBASER_RaWaWb      GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWaWb)
 433
 434 #define GITS_CBASER_ADDRESS(cbaser)     ((cbaser) & GENMASK_ULL(51, 12))
 435
 436 #define GITS_BASER_NR_REGS              8
 437
 438 #define GITS_BASER_VALID                        (1ULL << 63)
 439 #define GITS_BASER_INDIRECT                     (1ULL << 62)
 440
 441 #define GITS_BASER_INNER_CACHEABILITY_SHIFT     (59)
 442 #define GITS_BASER_OUTER_CACHEABILITY_SHIFT     (53)
 443 #define GITS_BASER_INNER_CACHEABILITY_MASK                              \
 444         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, MASK)
 445 #define GITS_BASER_CACHEABILITY_MASK            GITS_BASER_INNER_CACHEABILITY_MASK
 446 #define GITS_BASER_OUTER_CACHEABILITY_MASK                              \
 447         GIC_BASER_CACHEABILITY(GITS_BASER, OUTER, MASK)
 448 #define GITS_BASER_SHAREABILITY_MASK                                    \
 449         GIC_BASER_SHAREABILITY(GITS_BASER, SHAREABILITY_MASK)
 450
 451 #define GITS_BASER_nCnB         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, nCnB)
 452 #define GITS_BASER_nC           GIC_BASER_CACHEABILITY(GITS_BASER, INNER, nC)
 453 #define GITS_BASER_RaWt         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWt)
 454 #define GITS_BASER_RaWb         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWb)
 455 #define GITS_BASER_WaWt         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, WaWt)
 456 #define GITS_BASER_WaWb         GIC_BASER_CACHEABILITY(GITS_BASER, INNER, WaWb)
 457 #define GITS_BASER_RaWaWt       GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWaWt)
 458 #define GITS_BASER_RaWaWb       GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWaWb)
 459
 460 #define GITS_BASER_TYPE_SHIFT                   (56)
 461 #define GITS_BASER_TYPE(r)              (((r) >> GITS_BASER_TYPE_SHIFT) & 7)
 462 #define GITS_BASER_ENTRY_SIZE_SHIFT             (48)
 463 #define GITS_BASER_ENTRY_SIZE(r)        ((((r) >> GITS_BASER_ENTRY_SIZE_SHIFT) & 0x1f) + 1)
 464 #define GITS_BASER_ENTRY_SIZE_MASK      GENMASK_ULL(52, 48)
 465 #define GITS_BASER_PHYS_52_to_48(phys)                                  \
 466         (((phys) & GENMASK_ULL(47, 16)) | (((phys) >> 48) & 0xf) << 12)
 467 #define GITS_BASER_ADDR_48_to_52(baser)                                 \
 468         (((baser) & GENMASK_ULL(47, 16)) | (((baser) >> 12) & 0xf) << 48)
 469
 470 #define GITS_BASER_SHAREABILITY_SHIFT   (10)
 471 #define GITS_BASER_InnerShareable                                       \
 472         GIC_BASER_SHAREABILITY(GITS_BASER, InnerShareable)
 473 #define GITS_BASER_PAGE_SIZE_SHIFT      (8)
 474 #define __GITS_BASER_PSZ(sz)            (GIC_PAGE_SIZE_ ## sz << GITS_BASER_PAGE_SIZE_SHIFT)
 475 #define GITS_BASER_PAGE_SIZE_4K         __GITS_BASER_PSZ(4K)
 476 #define GITS_BASER_PAGE_SIZE_16K        __GITS_BASER_PSZ(16K)
 477 #define GITS_BASER_PAGE_SIZE_64K        __GITS_BASER_PSZ(64K)
 478 #define GITS_BASER_PAGE_SIZE_MASK       __GITS_BASER_PSZ(MASK)
 479 #define GITS_BASER_PAGES_MAX            256
 480 #define GITS_BASER_PAGES_SHIFT          (0)
 481 #define GITS_BASER_NR_PAGES(r)          (((r) & 0xff) + 1)
 482
 483 #define GITS_BASER_TYPE_NONE            0
 484 #define GITS_BASER_TYPE_DEVICE          1
 485 #define GITS_BASER_TYPE_VCPU            2
 486 #define GITS_BASER_TYPE_RESERVED3       3
 487 #define GITS_BASER_TYPE_COLLECTION      4
 488 #define GITS_BASER_TYPE_RESERVED5       5
 489 #define GITS_BASER_TYPE_RESERVED6       6
 490 #define GITS_BASER_TYPE_RESERVED7       7
 491
 492 #define GITS_LVL1_ENTRY_SIZE           (8UL)
 493
 494 /*
 495  * ITS commands
 496  */
 497 #define GITS_CMD_MAPD                   0x08
 498 #define GITS_CMD_MAPC                   0x09
 499 #define GITS_CMD_MAPTI                  0x0a
 500 #define GITS_CMD_MAPI                   0x0b
 501 #define GITS_CMD_MOVI                   0x01
 502 #define GITS_CMD_DISCARD                0x0f
 503 #define GITS_CMD_INV                    0x0c
 504 #define GITS_CMD_MOVALL                 0x0e
 505 #define GITS_CMD_INVALL                 0x0d
 506 #define GITS_CMD_INT                    0x03
 507 #define GITS_CMD_CLEAR                  0x04
 508 #define GITS_CMD_SYNC                   0x05
 509
 510 /*
 511  * GICv4 ITS specific commands
 512  */
 513 #define GITS_CMD_GICv4(x)               ((x) | 0x20)
 514 #define GITS_CMD_VINVALL                GITS_CMD_GICv4(GITS_CMD_INVALL)
 515 #define GITS_CMD_VMAPP                  GITS_CMD_GICv4(GITS_CMD_MAPC)
 516 #define GITS_CMD_VMAPTI                 GITS_CMD_GICv4(GITS_CMD_MAPTI)
 517 #define GITS_CMD_VMOVI                  GITS_CMD_GICv4(GITS_CMD_MOVI)
 518 #define GITS_CMD_VSYNC                  GITS_CMD_GICv4(GITS_CMD_SYNC)
 519 /* VMOVP, VSGI and INVDB are the odd ones, as they dont have a physical counterpart */
 520 #define GITS_CMD_VMOVP                  GITS_CMD_GICv4(2)
 521 #define GITS_CMD_VSGI                   GITS_CMD_GICv4(3)
 522 #define GITS_CMD_INVDB                  GITS_CMD_GICv4(0xe)
 523
 524 /*
 525  * ITS error numbers
 526  */
 527 #define E_ITS_MOVI_UNMAPPED_INTERRUPT           0x010107
 528 #define E_ITS_MOVI_UNMAPPED_COLLECTION          0x010109
 529 #define E_ITS_INT_UNMAPPED_INTERRUPT            0x010307
 530 #define E_ITS_CLEAR_UNMAPPED_INTERRUPT          0x010507
 531 #define E_ITS_MAPD_DEVICE_OOR                   0x010801
 532 #define E_ITS_MAPD_ITTSIZE_OOR                  0x010802
 533 #define E_ITS_MAPC_PROCNUM_OOR                  0x010902
 534 #define E_ITS_MAPC_COLLECTION_OOR               0x010903
 535 #define E_ITS_MAPTI_UNMAPPED_DEVICE             0x010a04
 536 #define E_ITS_MAPTI_ID_OOR                      0x010a05
 537 #define E_ITS_MAPTI_PHYSICALID_OOR              0x010a06
 538 #define E_ITS_INV_UNMAPPED_INTERRUPT            0x010c07
 539 #define E_ITS_INVALL_UNMAPPED_COLLECTION        0x010d09
 540 #define E_ITS_MOVALL_PROCNUM_OOR                0x010e01
 541 #define E_ITS_DISCARD_UNMAPPED_INTERRUPT        0x010f07
 542
 543 /*
 544  * CPU interface registers
 545  */
 546 #define ICC_CTLR_EL1_EOImode_SHIFT      (1)
 547 #define ICC_CTLR_EL1_EOImode_drop_dir   (0U << ICC_CTLR_EL1_EOImode_SHIFT)
 548 #define ICC_CTLR_EL1_EOImode_drop       (1U << ICC_CTLR_EL1_EOImode_SHIFT)
 549 #define ICC_CTLR_EL1_EOImode_MASK       (1 << ICC_CTLR_EL1_EOImode_SHIFT)
 550 #define ICC_CTLR_EL1_CBPR_SHIFT         0
 551 #define ICC_CTLR_EL1_CBPR_MASK          (1 << ICC_CTLR_EL1_CBPR_SHIFT)
 552 #define ICC_CTLR_EL1_PMHE_SHIFT         6
 553 #define ICC_CTLR_EL1_PMHE_MASK          (1 << ICC_CTLR_EL1_PMHE_SHIFT)
 554 #define ICC_CTLR_EL1_PRI_BITS_SHIFT     8
 555 #define ICC_CTLR_EL1_PRI_BITS_MASK      (0x7 << ICC_CTLR_EL1_PRI_BITS_SHIFT)
 556 #define ICC_CTLR_EL1_ID_BITS_SHIFT      11
 557 #define ICC_CTLR_EL1_ID_BITS_MASK       (0x7 << ICC_CTLR_EL1_ID_BITS_SHIFT)
 558 #define ICC_CTLR_EL1_SEIS_SHIFT         14
 559 #define ICC_CTLR_EL1_SEIS_MASK          (0x1 << ICC_CTLR_EL1_SEIS_SHIFT)
 560 #define ICC_CTLR_EL1_A3V_SHIFT          15
 561 #define ICC_CTLR_EL1_A3V_MASK           (0x1 << ICC_CTLR_EL1_A3V_SHIFT)
 562 #define ICC_CTLR_EL1_RSS                (0x1 << 18)
 563 #define ICC_CTLR_EL1_ExtRange           (0x1 << 19)
 564 #define ICC_PMR_EL1_SHIFT               0
 565 #define ICC_PMR_EL1_MASK                (0xff << ICC_PMR_EL1_SHIFT)
 566 #define ICC_BPR0_EL1_SHIFT              0
 567 #define ICC_BPR0_EL1_MASK               (0x7 << ICC_BPR0_EL1_SHIFT)
 568 #define ICC_BPR1_EL1_SHIFT              0
 569 #define ICC_BPR1_EL1_MASK               (0x7 << ICC_BPR1_EL1_SHIFT)
 570 #define ICC_IGRPEN0_EL1_SHIFT           0
 571 #define ICC_IGRPEN0_EL1_MASK            (1 << ICC_IGRPEN0_EL1_SHIFT)
 572 #define ICC_IGRPEN1_EL1_SHIFT           0
 573 #define ICC_IGRPEN1_EL1_MASK            (1 << ICC_IGRPEN1_EL1_SHIFT)
 574 #define ICC_SRE_EL1_DIB                 (1U << 2)
 575 #define ICC_SRE_EL1_DFB                 (1U << 1)
 576 #define ICC_SRE_EL1_SRE                 (1U << 0)
 577
 578 /* These are for GICv2 emulation only */
 579 #define GICH_LR_VIRTUALID               (0x3ffUL << 0)
 580 #define GICH_LR_PHYSID_CPUID_SHIFT      (10)
 581 #define GICH_LR_PHYSID_CPUID            (7UL << GICH_LR_PHYSID_CPUID_SHIFT)
 582
 583 #define ICC_IAR1_EL1_SPURIOUS           0x3ff
 584
 585 #define ICC_SRE_EL2_SRE                 (1 << 0)
 586 #define ICC_SRE_EL2_ENABLE              (1 << 3)
 587
 588 #define ICC_SGI1R_TARGET_LIST_SHIFT     0
 589 #define ICC_SGI1R_TARGET_LIST_MASK      (0xffff << ICC_SGI1R_TARGET_LIST_SHIFT)
 590 #define ICC_SGI1R_AFFINITY_1_SHIFT      16
 591 #define ICC_SGI1R_AFFINITY_1_MASK       (0xff << ICC_SGI1R_AFFINITY_1_SHIFT)
 592 #define ICC_SGI1R_SGI_ID_SHIFT          24
 593 #define ICC_SGI1R_SGI_ID_MASK           (0xfULL << ICC_SGI1R_SGI_ID_SHIFT)
 594 #define ICC_SGI1R_AFFINITY_2_SHIFT      32
 595 #define ICC_SGI1R_AFFINITY_2_MASK       (0xffULL << ICC_SGI1R_AFFINITY_2_SHIFT)
 596 #define ICC_SGI1R_IRQ_ROUTING_MODE_BIT  40
 597 #define ICC_SGI1R_RS_SHIFT              44
 598 #define ICC_SGI1R_RS_MASK               (0xfULL << ICC_SGI1R_RS_SHIFT)
 599 #define ICC_SGI1R_AFFINITY_3_SHIFT      48
 600 #define ICC_SGI1R_AFFINITY_3_MASK       (0xffULL << ICC_SGI1R_AFFINITY_3_SHIFT)
 601
 602 #include <asm/arch_gicv3.h>
 603
 604 #ifndef __ASSEMBLY__
 605
 606 /*
 607  * We need a value to serve as a irq-type for LPIs. Choose one that will
 608  * hopefully pique the interest of the reviewer.
 609  */
 610 #define GIC_IRQ_TYPE_LPI                0xa110c8ed
 611
 612 struct rdists {
 613         struct {
 614                 raw_spinlock_t  rd_lock;
 615                 void __iomem    *rd_base;
 616                 struct page     *pend_page;
 617                 phys_addr_t     phys_base;
 618                 bool            lpi_enabled;
 619                 cpumask_t       *vpe_table_mask;
 620                 void            *vpe_l1_base;
 621         } __percpu              *rdist;
 622         phys_addr_t             prop_table_pa;
 623         void                    *prop_table_va;
 624         u64                     flags;
 625         u32                     gicd_typer;
 626         u32                     gicd_typer2;
 627         bool                    has_vlpis;
 628         bool                    has_rvpeid;
 629         bool                    has_direct_lpi;
 630         bool                    has_vpend_valid_dirty;
 631 };
 632
 633 struct irq_domain;
 634 struct fwnode_handle;
 635 int its_cpu_init(void);
 636 int its_init(struct fwnode_handle *handle, struct rdists *rdists,
 637              struct irq_domain *domain);
 638 int mbi_init(struct fwnode_handle *fwnode, struct irq_domain *parent);
 639
 640 static inline bool gic_enable_sre(void)
 641 {
 642         u32 val;
 643
 644         val = gic_read_sre();
 645         if (val & ICC_SRE_EL1_SRE)
 646                 return true;
 647
 648         val |= ICC_SRE_EL1_SRE;
 649         gic_write_sre(val);
 650         val = gic_read_sre();
 651
 652         return !!(val & ICC_SRE_EL1_SRE);
 653 }
 654
 655 #endif
 656
 657 #endif