83 lines
1.6 KiB
C
83 lines
1.6 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2014 ARM Ltd.
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*/
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#ifndef __ASM_CPU_H
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#define __ASM_CPU_H
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#include <linux/cpu.h>
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#include <linux/init.h>
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#include <linux/percpu.h>
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/*
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* Records attributes of an individual CPU.
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*/
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struct cpuinfo_32bit {
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u32 reg_id_dfr0;
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u32 reg_id_dfr1;
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u32 reg_id_isar0;
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u32 reg_id_isar1;
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u32 reg_id_isar2;
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u32 reg_id_isar3;
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u32 reg_id_isar4;
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u32 reg_id_isar5;
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u32 reg_id_isar6;
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u32 reg_id_mmfr0;
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u32 reg_id_mmfr1;
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u32 reg_id_mmfr2;
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u32 reg_id_mmfr3;
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u32 reg_id_mmfr4;
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u32 reg_id_mmfr5;
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u32 reg_id_pfr0;
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u32 reg_id_pfr1;
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u32 reg_id_pfr2;
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u32 reg_mvfr0;
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u32 reg_mvfr1;
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u32 reg_mvfr2;
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};
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struct cpuinfo_arm64 {
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struct cpu cpu;
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struct kobject kobj;
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u64 reg_ctr;
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u64 reg_cntfrq;
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u64 reg_dczid;
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u64 reg_midr;
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u64 reg_revidr;
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u64 reg_gmid;
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u64 reg_smidr;
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u64 reg_id_aa64dfr0;
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u64 reg_id_aa64dfr1;
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u64 reg_id_aa64isar0;
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u64 reg_id_aa64isar1;
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u64 reg_id_aa64isar2;
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u64 reg_id_aa64mmfr0;
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u64 reg_id_aa64mmfr1;
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u64 reg_id_aa64mmfr2;
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u64 reg_id_aa64pfr0;
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u64 reg_id_aa64pfr1;
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u64 reg_id_aa64zfr0;
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u64 reg_id_aa64smfr0;
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struct cpuinfo_32bit aarch32;
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/* pseudo-ZCR for recording maximum ZCR_EL1 LEN value: */
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u64 reg_zcr;
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/* pseudo-SMCR for recording maximum SMCR_EL1 LEN value: */
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u64 reg_smcr;
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};
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DECLARE_PER_CPU(struct cpuinfo_arm64, cpu_data);
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void cpuinfo_store_cpu(void);
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void __init cpuinfo_store_boot_cpu(void);
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void __init init_cpu_features(struct cpuinfo_arm64 *info);
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void update_cpu_features(int cpu, struct cpuinfo_arm64 *info,
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struct cpuinfo_arm64 *boot);
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#endif /* __ASM_CPU_H */
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