target-arm/cpu64.c

   1 /*
   2  * QEMU AArch64 CPU
   3  *
   4  * Copyright (c) 2013 Linaro Ltd
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version 2
   9  * of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see
  18  * <http://www.gnu.org/licenses/gpl-2.0.html>
  19  */
  20
  21 #include "cpu.h"
  22 #include "qemu-common.h"
  23 #if !defined(CONFIG_USER_ONLY)
  24 #include "hw/loader.h"
  25 #endif
  26 #include "hw/arm/arm.h"
  27 #include "sysemu/sysemu.h"
  28 #include "sysemu/kvm.h"
  29
  30 static inline void set_feature(CPUARMState *env, int feature)
  31 {
  32     env->features |= 1ULL << feature;
  33 }
  34
  35 #ifndef CONFIG_USER_ONLY
  36 static uint64_t a57_l2ctlr_read(CPUARMState *env, const ARMCPRegInfo *ri)
  37 {
  38     /* Number of processors is in [25:24]; otherwise we RAZ */
  39     return (smp_cpus - 1) << 24;
  40 }
  41 #endif
  42
  43 static const ARMCPRegInfo cortexa57_cp_reginfo[] = {
  44 #ifndef CONFIG_USER_ONLY
  45     { .name = "L2CTLR_EL1", .state = ARM_CP_STATE_AA64,
  46       .opc0 = 3, .opc1 = 1, .crn = 11, .crm = 0, .opc2 = 2,
  47       .access = PL1_RW, .readfn = a57_l2ctlr_read,
  48       .writefn = arm_cp_write_ignore },
  49     { .name = "L2CTLR",
  50       .cp = 15, .opc1 = 1, .crn = 9, .crm = 0, .opc2 = 2,
  51       .access = PL1_RW, .readfn = a57_l2ctlr_read,
  52       .writefn = arm_cp_write_ignore },
  53 #endif
  54     { .name = "L2ECTLR_EL1", .state = ARM_CP_STATE_AA64,
  55       .opc0 = 3, .opc1 = 1, .crn = 11, .crm = 0, .opc2 = 3,
  56       .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
  57     { .name = "L2ECTLR",
  58       .cp = 15, .opc1 = 1, .crn = 9, .crm = 0, .opc2 = 3,
  59       .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
  60     { .name = "L2ACTLR", .state = ARM_CP_STATE_BOTH,
  61       .opc0 = 3, .opc1 = 1, .crn = 15, .crm = 0, .opc2 = 0,
  62       .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
  63     { .name = "CPUACTLR_EL1", .state = ARM_CP_STATE_AA64,
  64       .opc0 = 3, .opc1 = 1, .crn = 15, .crm = 2, .opc2 = 0,
  65       .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
  66     { .name = "CPUACTLR",
  67       .cp = 15, .opc1 = 0, .crm = 15,
  68       .access = PL1_RW, .type = ARM_CP_CONST | ARM_CP_64BIT, .resetvalue = 0 },
  69     { .name = "CPUECTLR_EL1", .state = ARM_CP_STATE_AA64,
  70       .opc0 = 3, .opc1 = 1, .crn = 15, .crm = 2, .opc2 = 1,
  71       .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
  72     { .name = "CPUECTLR",
  73       .cp = 15, .opc1 = 1, .crm = 15,
  74       .access = PL1_RW, .type = ARM_CP_CONST | ARM_CP_64BIT, .resetvalue = 0 },
  75     { .name = "CPUMERRSR_EL1", .state = ARM_CP_STATE_AA64,
  76       .opc0 = 3, .opc1 = 1, .crn = 15, .crm = 2, .opc2 = 2,
  77       .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
  78     { .name = "CPUMERRSR",
  79       .cp = 15, .opc1 = 2, .crm = 15,
  80       .access = PL1_RW, .type = ARM_CP_CONST | ARM_CP_64BIT, .resetvalue = 0 },
  81     { .name = "L2MERRSR_EL1", .state = ARM_CP_STATE_AA64,
  82       .opc0 = 3, .opc1 = 1, .crn = 15, .crm = 2, .opc2 = 3,
  83       .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
  84     { .name = "L2MERRSR",
  85       .cp = 15, .opc1 = 3, .crm = 15,
  86       .access = PL1_RW, .type = ARM_CP_CONST | ARM_CP_64BIT, .resetvalue = 0 },
  87     REGINFO_SENTINEL
  88 };
  89
  90 static void aarch64_a57_initfn(Object *obj)
  91 {
  92     ARMCPU *cpu = ARM_CPU(obj);
  93
  94     set_feature(&cpu->env, ARM_FEATURE_V8);
  95     set_feature(&cpu->env, ARM_FEATURE_VFP4);
  96     set_feature(&cpu->env, ARM_FEATURE_VFP_FP16);
  97     set_feature(&cpu->env, ARM_FEATURE_NEON);
  98     set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
  99     set_feature(&cpu->env, ARM_FEATURE_AARCH64);
 100     set_feature(&cpu->env, ARM_FEATURE_CBAR_RO);
 101     cpu->kvm_target = QEMU_KVM_ARM_TARGET_CORTEX_A57;
 102     cpu->midr = 0x411fd070;
 103     cpu->reset_fpsid = 0x41034070;
 104     cpu->mvfr0 = 0x10110222;
 105     cpu->mvfr1 = 0x12111111;
 106     cpu->mvfr2 = 0x00000043;
 107     cpu->ctr = 0x8444c004;
 108     cpu->reset_sctlr = 0x00c50838;
 109     cpu->id_pfr0 = 0x00000131;
 110     cpu->id_pfr1 = 0x00011011;
 111     cpu->id_dfr0 = 0x03010066;
 112     cpu->id_afr0 = 0x00000000;
 113     cpu->id_mmfr0 = 0x10101105;
 114     cpu->id_mmfr1 = 0x40000000;
 115     cpu->id_mmfr2 = 0x01260000;
 116     cpu->id_mmfr3 = 0x02102211;
 117     cpu->id_isar0 = 0x02101110;
 118     cpu->id_isar1 = 0x13112111;
 119     cpu->id_isar2 = 0x21232042;
 120     cpu->id_isar3 = 0x01112131;
 121     cpu->id_isar4 = 0x00011142;
 122     cpu->id_aa64pfr0 = 0x00002222;
 123     cpu->id_aa64dfr0 = 0x10305106;
 124     cpu->id_aa64isar0 = 0x00010000;
 125     cpu->id_aa64mmfr0 = 0x00001124;
 126     cpu->clidr = 0x0a200023;
 127     cpu->ccsidr[0] = 0x701fe00a; /* 32KB L1 dcache */
 128     cpu->ccsidr[1] = 0x201fe012; /* 48KB L1 icache */
 129     cpu->ccsidr[2] = 0x70ffe07a; /* 2048KB L2 cache */
 130     cpu->dcz_blocksize = 4; /* 64 bytes */
 131 }
 132
 133 #ifdef CONFIG_USER_ONLY
 134 static void aarch64_any_initfn(Object *obj)
 135 {
 136     ARMCPU *cpu = ARM_CPU(obj);
 137
 138     set_feature(&cpu->env, ARM_FEATURE_V8);
 139     set_feature(&cpu->env, ARM_FEATURE_VFP4);
 140     set_feature(&cpu->env, ARM_FEATURE_VFP_FP16);
 141     set_feature(&cpu->env, ARM_FEATURE_NEON);
 142     set_feature(&cpu->env, ARM_FEATURE_ARM_DIV);
 143     set_feature(&cpu->env, ARM_FEATURE_V7MP);
 144     set_feature(&cpu->env, ARM_FEATURE_AARCH64);
 145     cpu->ctr = 0x80030003; /* 32 byte I and D cacheline size, VIPT icache */
 146     cpu->dcz_blocksize = 7; /*  512 bytes */
 147 }
 148 #endif
 149
 150 typedef struct ARMCPUInfo {
 151     const char *name;
 152     void (*initfn)(Object *obj);
 153     void (*class_init)(ObjectClass *oc, void *data);
 154 } ARMCPUInfo;
 155
 156 static const ARMCPUInfo aarch64_cpus[] = {
 157     { .name = "cortex-a57",         .initfn = aarch64_a57_initfn },
 158 #ifdef CONFIG_USER_ONLY
 159     { .name = "any",         .initfn = aarch64_any_initfn },
 160 #endif
 161     { .name = NULL }
 162 };
 163
 164 static void aarch64_cpu_initfn(Object *obj)
 165 {
 166 }
 167
 168 static void aarch64_cpu_finalizefn(Object *obj)
 169 {
 170 }
 171
 172 static void aarch64_cpu_set_pc(CPUState *cs, vaddr value)
 173 {
 174     ARMCPU *cpu = ARM_CPU(cs);
 175     /* It's OK to look at env for the current mode here, because it's
 176      * never possible for an AArch64 TB to chain to an AArch32 TB.
 177      * (Otherwise we would need to use synchronize_from_tb instead.)
 178      */
 179     if (is_a64(&cpu->env)) {
 180         cpu->env.pc = value;
 181     } else {
 182         cpu->env.regs[15] = value;
 183     }
 184 }
 185
 186 static void aarch64_cpu_class_init(ObjectClass *oc, void *data)
 187 {
 188     CPUClass *cc = CPU_CLASS(oc);
 189
 190     cc->do_interrupt = aarch64_cpu_do_interrupt;
 191     cc->set_pc = aarch64_cpu_set_pc;
 192     cc->gdb_read_register = aarch64_cpu_gdb_read_register;
 193     cc->gdb_write_register = aarch64_cpu_gdb_write_register;
 194     cc->gdb_num_core_regs = 34;
 195     cc->gdb_core_xml_file = "aarch64-core.xml";
 196 }
 197
 198 static void aarch64_cpu_register(const ARMCPUInfo *info)
 199 {
 200     TypeInfo type_info = {
 201         .parent = TYPE_AARCH64_CPU,
 202         .instance_size = sizeof(ARMCPU),
 203         .instance_init = info->initfn,
 204         .class_size = sizeof(ARMCPUClass),
 205         .class_init = info->class_init,
 206     };
 207
 208     type_info.name = g_strdup_printf("%s-" TYPE_ARM_CPU, info->name);
 209     type_register(&type_info);
 210     g_free((void *)type_info.name);
 211 }
 212
 213 static const TypeInfo aarch64_cpu_type_info = {
 214     .name = TYPE_AARCH64_CPU,
 215     .parent = TYPE_ARM_CPU,
 216     .instance_size = sizeof(ARMCPU),
 217     .instance_init = aarch64_cpu_initfn,
 218     .instance_finalize = aarch64_cpu_finalizefn,
 219     .abstract = true,
 220     .class_size = sizeof(AArch64CPUClass),
 221     .class_init = aarch64_cpu_class_init,
 222 };
 223
 224 static void aarch64_cpu_register_types(void)
 225 {
 226     const ARMCPUInfo *info = aarch64_cpus;
 227
 228     type_register_static(&aarch64_cpu_type_info);
 229
 230     while (info->name) {
 231         aarch64_cpu_register(info);
 232         info++;
 233     }
 234 }
 235
 236 type_init(aarch64_cpu_register_types)