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unicorn/qemu/target-arm/cpu64.c
Peter Crosthwaite 91cf36e372
target-arm: cpu64: generalise name of A57 regs 
Rename some A57 CP register variables in preparation for support for
Cortex A53. Use "a57_a53" to describe the shareable features. Some of
the CP15 registers (such as ACTLR) are specific to implementation, but
we currently just RAZ them so continue with that as the policy for both
A57 and A53 processors under a shared definition.

Backports commit ee804264ddc4d3cd36a5183a09847e391da0fc66 from qemu
2018-02-12 21:23:48 -05:00

238 lines
7.8 KiB
C
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/*
* QEMU AArch64 CPU
*
* Copyright (c) 2013 Linaro Ltd
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see
* <http://www.gnu.org/licenses/gpl-2.0.html>
*/
#include "cpu.h"
#include "qemu-common.h"
#include "hw/arm/arm.h"
#include "sysemu/sysemu.h"
static inline void set_feature(CPUARMState *env, int feature)
{
env->features |= 1ULL << feature;
}
static inline QEMU_UNUSED_FUNC void unset_feature(CPUARMState *env, int feature)
{
env->features &= ~(1ULL << feature);
}
#ifndef CONFIG_USER_ONLY
static uint64_t a57_a53_l2ctlr_read(CPUARMState *env, const ARMCPRegInfo *ri)
{
/* Number of processors is in [25:24]; otherwise we RAZ */
return (smp_cpus - 1) << 24;
}
#endif
static const ARMCPRegInfo cortex_a57_a53_cp_reginfo[] = {
#ifndef CONFIG_USER_ONLY
{ "L2CTLR_EL1", 0,11,0, 3,1,2, ARM_CP_STATE_AA64,
0, PL1_RW, 0, NULL, 0, 0, {0, 0},
NULL, a57_a53_l2ctlr_read, arm_cp_write_ignore, },
{ "L2CTLR", 15,9,0, 0,1,2, 0,
0, PL1_RW, 0, NULL, 0, 0, {0, 0},
NULL, a57_a53_l2ctlr_read, arm_cp_write_ignore, },
#endif
{ "L2ECTLR_EL1", 0,11,0, 3,1,3, ARM_CP_STATE_AA64,
ARM_CP_CONST, PL1_RW, 0, NULL, 0, },
{ "L2ECTLR", 15,9,0, 0,1,3, 0,
ARM_CP_CONST, PL1_RW, 0, NULL, 0, },
{ "L2ACTLR", 0,15,0, 3,1,0, ARM_CP_STATE_BOTH,
ARM_CP_CONST, PL1_RW, 0, NULL, 0 },
{ "CPUACTLR_EL1", 0,15,2, 3,1,0, ARM_CP_STATE_AA64,
ARM_CP_CONST, PL1_RW, 0, NULL, 0 },
{ "CPUACTLR", 15,0,15, 0,0,0, 0,
ARM_CP_CONST | ARM_CP_64BIT, PL1_RW, 0, NULL, 0, },
{ "CPUECTLR_EL1", 0,15,2, 3,1,1, ARM_CP_STATE_AA64,
ARM_CP_CONST, PL1_RW, 0, NULL, 0, },
{ "CPUECTLR", 15,0,15, 0,1,0, 0,
ARM_CP_CONST | ARM_CP_64BIT, PL1_RW, 0, NULL, 0, },
{ "CPUMERRSR_EL1", 0,15,2, 3,1,2, ARM_CP_STATE_AA64,
ARM_CP_CONST, PL1_RW, 0, NULL, 0 },
{ "CPUMERRSR", 15,0,15, 0,2,0, 0,
ARM_CP_CONST | ARM_CP_64BIT, PL1_RW, 0, NULL, 0 },
{ "L2MERRSR_EL1", 0,15,2, 3,1,3, ARM_CP_STATE_AA64,
ARM_CP_CONST, PL1_RW, 0, NULL, 0 },
{ "L2MERRSR", 15,0,15, 0,3,0, 0,
ARM_CP_CONST | ARM_CP_64BIT, PL1_RW, 0, NULL, 0 },
REGINFO_SENTINEL
};
static void aarch64_a57_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
set_feature(&cpu->env, ARM_FEATURE_V8);
set_feature(&cpu->env, ARM_FEATURE_VFP4);
set_feature(&cpu->env, ARM_FEATURE_NEON);
set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
set_feature(&cpu->env, ARM_FEATURE_AARCH64);
set_feature(&cpu->env, ARM_FEATURE_CBAR_RO);
set_feature(&cpu->env, ARM_FEATURE_V8_AES);
set_feature(&cpu->env, ARM_FEATURE_V8_SHA1);
set_feature(&cpu->env, ARM_FEATURE_V8_SHA256);
set_feature(&cpu->env, ARM_FEATURE_V8_PMULL);
set_feature(&cpu->env, ARM_FEATURE_CRC);
set_feature(&cpu->env, ARM_FEATURE_PMU);
cpu->kvm_target = QEMU_KVM_ARM_TARGET_CORTEX_A57;
cpu->midr = 0x411fd070;
cpu->reset_fpsid = 0x41034070;
cpu->mvfr0 = 0x10110222;
cpu->mvfr1 = 0x12111111;
cpu->mvfr2 = 0x00000043;
cpu->ctr = 0x8444c004;
cpu->reset_sctlr = 0x00c50838;
cpu->id_pfr0 = 0x00000131;
cpu->id_pfr1 = 0x00011011;
cpu->id_dfr0 = 0x03010066;
cpu->id_afr0 = 0x00000000;
cpu->id_mmfr0 = 0x10101105;
cpu->id_mmfr1 = 0x40000000;
cpu->id_mmfr2 = 0x01260000;
cpu->id_mmfr3 = 0x02102211;
cpu->id_isar0 = 0x02101110;
cpu->id_isar1 = 0x13112111;
cpu->id_isar2 = 0x21232042;
cpu->id_isar3 = 0x01112131;
cpu->id_isar4 = 0x00011142;
cpu->id_isar5 = 0x00011121;
cpu->id_aa64pfr0 = 0x00002222;
cpu->id_aa64dfr0 = 0x10305106;
cpu->id_aa64isar0 = 0x00011120;
cpu->id_aa64mmfr0 = 0x00001124;
cpu->dbgdidr = 0x3516d000;
cpu->clidr = 0x0a200023;
cpu->ccsidr[0] = 0x701fe00a; /* 32KB L1 dcache */
cpu->ccsidr[1] = 0x201fe012; /* 48KB L1 icache */
cpu->ccsidr[2] = 0x70ffe07a; /* 2048KB L2 cache */
cpu->dcz_blocksize = 4; /* 64 bytes */
define_arm_cp_regs(cpu, cortex_a57_a53_cp_reginfo);
}
#ifdef CONFIG_USER_ONLY
static void aarch64_any_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
ARMCPU *cpu = ARM_CPU(uc, obj);
set_feature(&cpu->env, ARM_FEATURE_V8);
set_feature(&cpu->env, ARM_FEATURE_VFP4);
set_feature(&cpu->env, ARM_FEATURE_NEON);
set_feature(&cpu->env, ARM_FEATURE_AARCH64);
set_feature(&cpu->env, ARM_FEATURE_V8_AES);
set_feature(&cpu->env, ARM_FEATURE_V8_SHA1);
set_feature(&cpu->env, ARM_FEATURE_V8_SHA256);
set_feature(&cpu->env, ARM_FEATURE_V8_PMULL);
set_feature(&cpu->env, ARM_FEATURE_CRC);
cpu->ctr = 0x80038003; /* 32 byte I and D cacheline size, VIPT icache */
cpu->dcz_blocksize = 7; /* 512 bytes */
}
#endif
typedef struct ARMCPUInfo {
const char *name;
void (*initfn)(struct uc_struct *uc, Object *obj, void *opaque);
void (*class_init)(struct uc_struct *uc, ObjectClass *oc, void *data);
} ARMCPUInfo;
static const ARMCPUInfo aarch64_cpus[] = {
{ "cortex-a57", aarch64_a57_initfn },
#ifdef CONFIG_USER_ONLY
{ "any", aarch64_any_initfn },
#endif
{ NULL }
};
static QEMU_UNUSED_FUNC bool aarch64_cpu_get_aarch64(Object *obj, Error **errp)
{
ARMCPU *cpu = ARM_CPU(NULL, obj);
return arm_feature(&cpu->env, ARM_FEATURE_AARCH64);
}
static void aarch64_cpu_initfn(struct uc_struct *uc, Object *obj, void *opaque)
{
}
static void aarch64_cpu_finalizefn(struct uc_struct *uc, Object *obj, void *opaque)
{
}
static void aarch64_cpu_set_pc(CPUState *cs, vaddr value)
{
CPUARMState *env = cs->env_ptr;
ARMCPU *cpu = ARM_CPU(env->uc, cs);
/* It's OK to look at env for the current mode here, because it's
* never possible for an AArch64 TB to chain to an AArch32 TB.
* (Otherwise we would need to use synchronize_from_tb instead.)
*/
if (is_a64(&cpu->env)) {
cpu->env.pc = value;
} else {
cpu->env.regs[15] = value;
}
}
static void aarch64_cpu_class_init(struct uc_struct *uc, ObjectClass *oc, void *data)
{
CPUClass *cc = CPU_CLASS(uc, oc);
#if !defined(CONFIG_USER_ONLY)
cc->do_interrupt = aarch64_cpu_do_interrupt;
#endif
cc->cpu_exec_interrupt = arm_cpu_exec_interrupt;
cc->set_pc = aarch64_cpu_set_pc;
}
static void aarch64_cpu_register(struct uc_struct *uc, const ARMCPUInfo *info)
{
TypeInfo type_info = { 0 };
type_info.parent = TYPE_AARCH64_CPU;
type_info.instance_size = sizeof(ARMCPU);
type_info.instance_init = info->initfn;
type_info.class_size = sizeof(ARMCPUClass);
type_info.class_init = info->class_init;
type_info.name = g_strdup_printf("%s-" TYPE_ARM_CPU, info->name);
type_register(uc, &type_info);
g_free((void *)type_info.name);
}
void aarch64_cpu_register_types(void *opaque)
{
const ARMCPUInfo *info = aarch64_cpus;
static TypeInfo aarch64_cpu_type_info = { 0 };
aarch64_cpu_type_info.name = TYPE_AARCH64_CPU;
aarch64_cpu_type_info.parent = TYPE_ARM_CPU;
aarch64_cpu_type_info.instance_size = sizeof(ARMCPU);
aarch64_cpu_type_info.instance_init = aarch64_cpu_initfn;
aarch64_cpu_type_info.instance_finalize = aarch64_cpu_finalizefn;
aarch64_cpu_type_info.abstract = true;
aarch64_cpu_type_info.class_size = sizeof(AArch64CPUClass);
aarch64_cpu_type_info.class_init = aarch64_cpu_class_init;
type_register_static(opaque, &aarch64_cpu_type_info);
while (info->name) {
aarch64_cpu_register(opaque, info);
info++;
}
}
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