1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * Copyright (C) 2012 ARM Ltd. 4 */ 5#ifndef __ASM_CPUTYPE_H 6#define __ASM_CPUTYPE_H 7 8#define INVALID_HWID ULONG_MAX 9 10#define MPIDR_UP_BITMASK (0x1 << 30) 11#define MPIDR_MT_BITMASK (0x1 << 24) 12#define MPIDR_HWID_BITMASK UL(0xff00ffffff) 13 14#define MPIDR_LEVEL_BITS_SHIFT 3 15#define MPIDR_LEVEL_BITS (1 << MPIDR_LEVEL_BITS_SHIFT) 16#define MPIDR_LEVEL_MASK ((1 << MPIDR_LEVEL_BITS) - 1) 17 18#define MPIDR_LEVEL_SHIFT(level) \ 19 (((1 << level) >> 1) << MPIDR_LEVEL_BITS_SHIFT) 20 21#define MPIDR_AFFINITY_LEVEL(mpidr, level) \ 22 ((mpidr >> MPIDR_LEVEL_SHIFT(level)) & MPIDR_LEVEL_MASK) 23 24#define MIDR_REVISION_MASK 0xf 25#define MIDR_REVISION(midr) ((midr) & MIDR_REVISION_MASK) 26#define MIDR_PARTNUM_SHIFT 4 27#define MIDR_PARTNUM_MASK (0xfff << MIDR_PARTNUM_SHIFT) 28#define MIDR_PARTNUM(midr) \ 29 (((midr) & MIDR_PARTNUM_MASK) >> MIDR_PARTNUM_SHIFT) 30#define MIDR_ARCHITECTURE_SHIFT 16 31#define MIDR_ARCHITECTURE_MASK (0xf << MIDR_ARCHITECTURE_SHIFT) 32#define MIDR_ARCHITECTURE(midr) \ 33 (((midr) & MIDR_ARCHITECTURE_MASK) >> MIDR_ARCHITECTURE_SHIFT) 34#define MIDR_VARIANT_SHIFT 20 35#define MIDR_VARIANT_MASK (0xf << MIDR_VARIANT_SHIFT) 36#define MIDR_VARIANT(midr) \ 37 (((midr) & MIDR_VARIANT_MASK) >> MIDR_VARIANT_SHIFT) 38#define MIDR_IMPLEMENTOR_SHIFT 24 39#define MIDR_IMPLEMENTOR_MASK (0xffU << MIDR_IMPLEMENTOR_SHIFT) 40#define MIDR_IMPLEMENTOR(midr) \ 41 (((midr) & MIDR_IMPLEMENTOR_MASK) >> MIDR_IMPLEMENTOR_SHIFT) 42 43#define MIDR_CPU_MODEL(imp, partnum) \ 44 ((_AT(u32, imp) << MIDR_IMPLEMENTOR_SHIFT) | \ 45 (0xf << MIDR_ARCHITECTURE_SHIFT) | \ 46 ((partnum) << MIDR_PARTNUM_SHIFT)) 47 48#define MIDR_CPU_VAR_REV(var, rev) \ 49 (((var) << MIDR_VARIANT_SHIFT) | (rev)) 50 51#define MIDR_CPU_MODEL_MASK (MIDR_IMPLEMENTOR_MASK | MIDR_PARTNUM_MASK | \ 52 MIDR_ARCHITECTURE_MASK) 53 54#define ARM_CPU_IMP_ARM 0x41 55#define ARM_CPU_IMP_APM 0x50 56#define ARM_CPU_IMP_CAVIUM 0x43 57#define ARM_CPU_IMP_BRCM 0x42 58#define ARM_CPU_IMP_QCOM 0x51 59#define ARM_CPU_IMP_NVIDIA 0x4E 60#define ARM_CPU_IMP_FUJITSU 0x46 61#define ARM_CPU_IMP_HISI 0x48 62#define ARM_CPU_IMP_APPLE 0x61 63#define ARM_CPU_IMP_AMPERE 0xC0 64#define ARM_CPU_IMP_MICROSOFT 0x6D 65 66#define ARM_CPU_PART_AEM_V8 0xD0F 67#define ARM_CPU_PART_FOUNDATION 0xD00 68#define ARM_CPU_PART_CORTEX_A57 0xD07 69#define ARM_CPU_PART_CORTEX_A72 0xD08 70#define ARM_CPU_PART_CORTEX_A53 0xD03 71#define ARM_CPU_PART_CORTEX_A73 0xD09 72#define ARM_CPU_PART_CORTEX_A75 0xD0A 73#define ARM_CPU_PART_CORTEX_A35 0xD04 74#define ARM_CPU_PART_CORTEX_A55 0xD05 75#define ARM_CPU_PART_CORTEX_A76 0xD0B 76#define ARM_CPU_PART_NEOVERSE_N1 0xD0C 77#define ARM_CPU_PART_CORTEX_A77 0xD0D 78#define ARM_CPU_PART_NEOVERSE_V1 0xD40 79#define ARM_CPU_PART_CORTEX_A78 0xD41 80#define ARM_CPU_PART_CORTEX_A78AE 0xD42 81#define ARM_CPU_PART_CORTEX_X1 0xD44 82#define ARM_CPU_PART_CORTEX_A510 0xD46 83#define ARM_CPU_PART_CORTEX_A520 0xD80 84#define ARM_CPU_PART_CORTEX_A710 0xD47 85#define ARM_CPU_PART_CORTEX_A715 0xD4D 86#define ARM_CPU_PART_CORTEX_X2 0xD48 87#define ARM_CPU_PART_NEOVERSE_N2 0xD49 88#define ARM_CPU_PART_CORTEX_A78C 0xD4B 89 90#define APM_CPU_PART_XGENE 0x000 91#define APM_CPU_VAR_POTENZA 0x00 92 93#define CAVIUM_CPU_PART_THUNDERX 0x0A1 94#define CAVIUM_CPU_PART_THUNDERX_81XX 0x0A2 95#define CAVIUM_CPU_PART_THUNDERX_83XX 0x0A3 96#define CAVIUM_CPU_PART_THUNDERX2 0x0AF 97/* OcteonTx2 series */ 98#define CAVIUM_CPU_PART_OCTX2_98XX 0x0B1 99#define CAVIUM_CPU_PART_OCTX2_96XX 0x0B2 100#define CAVIUM_CPU_PART_OCTX2_95XX 0x0B3 101#define CAVIUM_CPU_PART_OCTX2_95XXN 0x0B4 102#define CAVIUM_CPU_PART_OCTX2_95XXMM 0x0B5 103#define CAVIUM_CPU_PART_OCTX2_95XXO 0x0B6 104 105#define BRCM_CPU_PART_BRAHMA_B53 0x100 106#define BRCM_CPU_PART_VULCAN 0x516 107 108#define QCOM_CPU_PART_FALKOR_V1 0x800 109#define QCOM_CPU_PART_FALKOR 0xC00 110#define QCOM_CPU_PART_KRYO 0x200 111#define QCOM_CPU_PART_KRYO_2XX_GOLD 0x800 112#define QCOM_CPU_PART_KRYO_2XX_SILVER 0x801 113#define QCOM_CPU_PART_KRYO_3XX_SILVER 0x803 114#define QCOM_CPU_PART_KRYO_4XX_GOLD 0x804 115#define QCOM_CPU_PART_KRYO_4XX_SILVER 0x805 116 117#define NVIDIA_CPU_PART_DENVER 0x003 118#define NVIDIA_CPU_PART_CARMEL 0x004 119 120#define FUJITSU_CPU_PART_A64FX 0x001 121 122#define HISI_CPU_PART_TSV110 0xD01 123 124#define APPLE_CPU_PART_M1_ICESTORM 0x022 125#define APPLE_CPU_PART_M1_FIRESTORM 0x023 126#define APPLE_CPU_PART_M1_ICESTORM_PRO 0x024 127#define APPLE_CPU_PART_M1_FIRESTORM_PRO 0x025 128#define APPLE_CPU_PART_M1_ICESTORM_MAX 0x028 129#define APPLE_CPU_PART_M1_FIRESTORM_MAX 0x029 130#define APPLE_CPU_PART_M2_BLIZZARD 0x032 131#define APPLE_CPU_PART_M2_AVALANCHE 0x033 132#define APPLE_CPU_PART_M2_BLIZZARD_PRO 0x034 133#define APPLE_CPU_PART_M2_AVALANCHE_PRO 0x035 134#define APPLE_CPU_PART_M2_BLIZZARD_MAX 0x038 135#define APPLE_CPU_PART_M2_AVALANCHE_MAX 0x039 136 137#define AMPERE_CPU_PART_AMPERE1 0xAC3 138 139#define MICROSOFT_CPU_PART_AZURE_COBALT_100 0xD49 /* Based on r0p0 of ARM Neoverse N2 */ 140 141#define MIDR_CORTEX_A53 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A53) 142#define MIDR_CORTEX_A57 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A57) 143#define MIDR_CORTEX_A72 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A72) 144#define MIDR_CORTEX_A73 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A73) 145#define MIDR_CORTEX_A75 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A75) 146#define MIDR_CORTEX_A35 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A35) 147#define MIDR_CORTEX_A55 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A55) 148#define MIDR_CORTEX_A76 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A76) 149#define MIDR_NEOVERSE_N1 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N1) 150#define MIDR_CORTEX_A77 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A77) 151#define MIDR_NEOVERSE_V1 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_V1) 152#define MIDR_CORTEX_A78 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A78) 153#define MIDR_CORTEX_A78AE MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A78AE) 154#define MIDR_CORTEX_X1 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X1) 155#define MIDR_CORTEX_A510 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A510) 156#define MIDR_CORTEX_A520 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A520) 157#define MIDR_CORTEX_A710 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A710) 158#define MIDR_CORTEX_A715 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A715) 159#define MIDR_CORTEX_X2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X2) 160#define MIDR_NEOVERSE_N2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N2) 161#define MIDR_CORTEX_A78C MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A78C) 162#define MIDR_THUNDERX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX) 163#define MIDR_THUNDERX_81XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_81XX) 164#define MIDR_THUNDERX_83XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_83XX) 165#define MIDR_OCTX2_98XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_OCTX2_98XX) 166#define MIDR_OCTX2_96XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_OCTX2_96XX) 167#define MIDR_OCTX2_95XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_OCTX2_95XX) 168#define MIDR_OCTX2_95XXN MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_OCTX2_95XXN) 169#define MIDR_OCTX2_95XXMM MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_OCTX2_95XXMM) 170#define MIDR_OCTX2_95XXO MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_OCTX2_95XXO) 171#define MIDR_CAVIUM_THUNDERX2 MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX2) 172#define MIDR_BRAHMA_B53 MIDR_CPU_MODEL(ARM_CPU_IMP_BRCM, BRCM_CPU_PART_BRAHMA_B53) 173#define MIDR_BRCM_VULCAN MIDR_CPU_MODEL(ARM_CPU_IMP_BRCM, BRCM_CPU_PART_VULCAN) 174#define MIDR_QCOM_FALKOR_V1 MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_FALKOR_V1) 175#define MIDR_QCOM_FALKOR MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_FALKOR) 176#define MIDR_QCOM_KRYO MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO) 177#define MIDR_QCOM_KRYO_2XX_GOLD MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO_2XX_GOLD) 178#define MIDR_QCOM_KRYO_2XX_SILVER MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO_2XX_SILVER) 179#define MIDR_QCOM_KRYO_3XX_SILVER MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO_3XX_SILVER) 180#define MIDR_QCOM_KRYO_4XX_GOLD MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO_4XX_GOLD) 181#define MIDR_QCOM_KRYO_4XX_SILVER MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO_4XX_SILVER) 182#define MIDR_NVIDIA_DENVER MIDR_CPU_MODEL(ARM_CPU_IMP_NVIDIA, NVIDIA_CPU_PART_DENVER) 183#define MIDR_NVIDIA_CARMEL MIDR_CPU_MODEL(ARM_CPU_IMP_NVIDIA, NVIDIA_CPU_PART_CARMEL) 184#define MIDR_FUJITSU_A64FX MIDR_CPU_MODEL(ARM_CPU_IMP_FUJITSU, FUJITSU_CPU_PART_A64FX) 185#define MIDR_HISI_TSV110 MIDR_CPU_MODEL(ARM_CPU_IMP_HISI, HISI_CPU_PART_TSV110) 186#define MIDR_APPLE_M1_ICESTORM MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_ICESTORM) 187#define MIDR_APPLE_M1_FIRESTORM MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_FIRESTORM) 188#define MIDR_APPLE_M1_ICESTORM_PRO MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_ICESTORM_PRO) 189#define MIDR_APPLE_M1_FIRESTORM_PRO MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_FIRESTORM_PRO) 190#define MIDR_APPLE_M1_ICESTORM_MAX MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_ICESTORM_MAX) 191#define MIDR_APPLE_M1_FIRESTORM_MAX MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_FIRESTORM_MAX) 192#define MIDR_APPLE_M2_BLIZZARD MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M2_BLIZZARD) 193#define MIDR_APPLE_M2_AVALANCHE MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M2_AVALANCHE) 194#define MIDR_APPLE_M2_BLIZZARD_PRO MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M2_BLIZZARD_PRO) 195#define MIDR_APPLE_M2_AVALANCHE_PRO MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M2_AVALANCHE_PRO) 196#define MIDR_APPLE_M2_BLIZZARD_MAX MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M2_BLIZZARD_MAX) 197#define MIDR_APPLE_M2_AVALANCHE_MAX MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M2_AVALANCHE_MAX) 198#define MIDR_AMPERE1 MIDR_CPU_MODEL(ARM_CPU_IMP_AMPERE, AMPERE_CPU_PART_AMPERE1) 199#define MIDR_MICROSOFT_AZURE_COBALT_100 MIDR_CPU_MODEL(ARM_CPU_IMP_MICROSOFT, MICROSOFT_CPU_PART_AZURE_COBALT_100) 200 201/* Fujitsu Erratum 010001 affects A64FX 1.0 and 1.1, (v0r0 and v1r0) */ 202#define MIDR_FUJITSU_ERRATUM_010001 MIDR_FUJITSU_A64FX 203#define MIDR_FUJITSU_ERRATUM_010001_MASK (~MIDR_CPU_VAR_REV(1, 0)) 204#define TCR_CLEAR_FUJITSU_ERRATUM_010001 (TCR_NFD1 | TCR_NFD0) 205 206#ifndef __ASSEMBLY__ 207 208#include <asm/sysreg.h> 209 210#define read_cpuid(reg) read_sysreg_s(SYS_ ## reg) 211 212/* 213 * Represent a range of MIDR values for a given CPU model and a 214 * range of variant/revision values. 215 * 216 * @model - CPU model as defined by MIDR_CPU_MODEL 217 * @rv_min - Minimum value for the revision/variant as defined by 218 * MIDR_CPU_VAR_REV 219 * @rv_max - Maximum value for the variant/revision for the range. 220 */ 221struct midr_range { 222 u32 model; 223 u32 rv_min; 224 u32 rv_max; 225}; 226 227#define MIDR_RANGE(m, v_min, r_min, v_max, r_max) \ 228 { \ 229 .model = m, \ 230 .rv_min = MIDR_CPU_VAR_REV(v_min, r_min), \ 231 .rv_max = MIDR_CPU_VAR_REV(v_max, r_max), \ 232 } 233 234#define MIDR_REV_RANGE(m, v, r_min, r_max) MIDR_RANGE(m, v, r_min, v, r_max) 235#define MIDR_REV(m, v, r) MIDR_RANGE(m, v, r, v, r) 236#define MIDR_ALL_VERSIONS(m) MIDR_RANGE(m, 0, 0, 0xf, 0xf) 237 238static inline bool midr_is_cpu_model_range(u32 midr, u32 model, u32 rv_min, 239 u32 rv_max) 240{ 241 u32 _model = midr & MIDR_CPU_MODEL_MASK; 242 u32 rv = midr & (MIDR_REVISION_MASK | MIDR_VARIANT_MASK); 243 244 return _model == model && rv >= rv_min && rv <= rv_max; 245} 246 247static inline bool is_midr_in_range(u32 midr, struct midr_range const *range) 248{ 249 return midr_is_cpu_model_range(midr, range->model, 250 range->rv_min, range->rv_max); 251} 252 253static inline bool 254is_midr_in_range_list(u32 midr, struct midr_range const *ranges) 255{ 256 while (ranges->model) 257 if (is_midr_in_range(midr, ranges++)) 258 return true; 259 return false; 260} 261 262/* 263 * The CPU ID never changes at run time, so we might as well tell the 264 * compiler that it's constant. Use this function to read the CPU ID 265 * rather than directly reading processor_id or read_cpuid() directly. 266 */ 267static inline u32 __attribute_const__ read_cpuid_id(void) 268{ 269 return read_cpuid(MIDR_EL1); 270} 271 272static inline u64 __attribute_const__ read_cpuid_mpidr(void) 273{ 274 return read_cpuid(MPIDR_EL1); 275} 276 277static inline unsigned int __attribute_const__ read_cpuid_implementor(void) 278{ 279 return MIDR_IMPLEMENTOR(read_cpuid_id()); 280} 281 282static inline unsigned int __attribute_const__ read_cpuid_part_number(void) 283{ 284 return MIDR_PARTNUM(read_cpuid_id()); 285} 286 287static inline u32 __attribute_const__ read_cpuid_cachetype(void) 288{ 289 return read_cpuid(CTR_EL0); 290} 291#endif /* __ASSEMBLY__ */ 292 293#endif 294