forked from Minki/linux
406e308770
ARMv8.2 adds a new feature register id_aa64mmfr2. This patch adds the cpu feature boiler plate used by the actual features in later patches. Signed-off-by: James Morse <james.morse@arm.com> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
72 lines
1.7 KiB
C
72 lines
1.7 KiB
C
/*
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* Copyright (C) 2014 ARM Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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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_arm64 {
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struct cpu cpu;
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u32 reg_ctr;
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u32 reg_cntfrq;
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u32 reg_dczid;
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u32 reg_midr;
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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_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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u32 reg_id_dfr0;
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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_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_pfr0;
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u32 reg_id_pfr1;
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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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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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