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Linux/arch/arm64/include/asm/cpu.h

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  1 /* SPDX-License-Identifier: GPL-2.0-only */
  2 /*
  3   * Copyright (C) 2014 ARM Ltd.
  4  */
  5 #ifndef __ASM_CPU_H
  6 #define __ASM_CPU_H
  7 
  8 #include <linux/cpu.h>
  9 #include <linux/init.h>
 10 #include <linux/percpu.h>
 11 
 12 /*
 13  * Records attributes of an individual CPU.
 14  */
 15 struct cpuinfo_arm64 {
 16         struct cpu      cpu;
 17         struct kobject  kobj;
 18         u32             reg_ctr;
 19         u32             reg_cntfrq;
 20         u32             reg_dczid;
 21         u32             reg_midr;
 22         u32             reg_revidr;
 23 
 24         u64             reg_id_aa64dfr0;
 25         u64             reg_id_aa64dfr1;
 26         u64             reg_id_aa64isar0;
 27         u64             reg_id_aa64isar1;
 28         u64             reg_id_aa64mmfr0;
 29         u64             reg_id_aa64mmfr1;
 30         u64             reg_id_aa64mmfr2;
 31         u64             reg_id_aa64pfr0;
 32         u64             reg_id_aa64pfr1;
 33         u64             reg_id_aa64zfr0;
 34 
 35         u32             reg_id_dfr0;
 36         u32             reg_id_dfr1;
 37         u32             reg_id_isar0;
 38         u32             reg_id_isar1;
 39         u32             reg_id_isar2;
 40         u32             reg_id_isar3;
 41         u32             reg_id_isar4;
 42         u32             reg_id_isar5;
 43         u32             reg_id_isar6;
 44         u32             reg_id_mmfr0;
 45         u32             reg_id_mmfr1;
 46         u32             reg_id_mmfr2;
 47         u32             reg_id_mmfr3;
 48         u32             reg_id_mmfr4;
 49         u32             reg_id_mmfr5;
 50         u32             reg_id_pfr0;
 51         u32             reg_id_pfr1;
 52         u32             reg_id_pfr2;
 53 
 54         u32             reg_mvfr0;
 55         u32             reg_mvfr1;
 56         u32             reg_mvfr2;
 57 
 58         /* pseudo-ZCR for recording maximum ZCR_EL1 LEN value: */
 59         u64             reg_zcr;
 60 };
 61 
 62 DECLARE_PER_CPU(struct cpuinfo_arm64, cpu_data);
 63 
 64 void cpuinfo_store_cpu(void);
 65 void __init cpuinfo_store_boot_cpu(void);
 66 
 67 void __init init_cpu_features(struct cpuinfo_arm64 *info);
 68 void update_cpu_features(int cpu, struct cpuinfo_arm64 *info,
 69                                  struct cpuinfo_arm64 *boot);
 70 
 71 #endif /* __ASM_CPU_H */
 72 

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