[mirror_ubuntu-focal-kernel.git] / arch / arm64 / include / asm / cpu.h

/*
  * Copyright (C) 2014 ARM Ltd.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * 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/>.
 */
#ifndef __ASM_CPU_H
#define __ASM_CPU_H

#include <linux/cpu.h>
#include <linux/init.h>
#include <linux/percpu.h>

/*
 * Records attributes of an individual CPU.
 */
struct cpuinfo_arm64 {
	struct cpu	cpu;
	u32		reg_ctr;
	u32		reg_cntfrq;
	u32		reg_dczid;
	u32		reg_midr;

	u64		reg_id_aa64dfr0;
	u64		reg_id_aa64dfr1;
	u64		reg_id_aa64isar0;
	u64		reg_id_aa64isar1;
	u64		reg_id_aa64mmfr0;
	u64		reg_id_aa64mmfr1;
	u64		reg_id_aa64mmfr2;
	u64		reg_id_aa64pfr0;
	u64		reg_id_aa64pfr1;

	u32		reg_id_dfr0;
	u32		reg_id_isar0;
	u32		reg_id_isar1;
	u32		reg_id_isar2;
	u32		reg_id_isar3;
	u32		reg_id_isar4;
	u32		reg_id_isar5;
	u32		reg_id_mmfr0;
	u32		reg_id_mmfr1;
	u32		reg_id_mmfr2;
	u32		reg_id_mmfr3;
	u32		reg_id_pfr0;
	u32		reg_id_pfr1;

	u32		reg_mvfr0;
	u32		reg_mvfr1;
	u32		reg_mvfr2;
};

DECLARE_PER_CPU(struct cpuinfo_arm64, cpu_data);

void cpuinfo_store_cpu(void);
void __init cpuinfo_store_boot_cpu(void);

void __init init_cpu_features(struct cpuinfo_arm64 *info);
void update_cpu_features(int cpu, struct cpuinfo_arm64 *info,
				 struct cpuinfo_arm64 *boot);

#endif /* __ASM_CPU_H */
Commit	Line	Data
df857416 MR	1	/*
	2	* Copyright (C) 2014 ARM Ltd.
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License version 2 as
	6	* published by the Free Software Foundation.
	7	*
	8	* This program is distributed in the hope that it will be useful,
	9	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	10	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	11	* GNU General Public License for more details.
	12	*
	13	* You should have received a copy of the GNU General Public License
	14	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	15	*/
	16	#ifndef __ASM_CPU_H
	17	#define __ASM_CPU_H
	18
	19	#include <linux/cpu.h>
	20	#include <linux/init.h>
	21	#include <linux/percpu.h>
	22
	23	/*
	24	* Records attributes of an individual CPU.
	25	*/
	26	struct cpuinfo_arm64 {
	27	struct cpu cpu;
	28	u32 reg_ctr;
	29	u32 reg_cntfrq;
	30	u32 reg_dczid;
	31	u32 reg_midr;
	32
3eebdbe5 MR	33	u64 reg_id_aa64dfr0;
3eebdbe5 MR	34	u64 reg_id_aa64dfr1;
df857416 MR	35	u64 reg_id_aa64isar0;
	36	u64 reg_id_aa64isar1;
	37	u64 reg_id_aa64mmfr0;
	38	u64 reg_id_aa64mmfr1;
406e3087	39	u64 reg_id_aa64mmfr2;
df857416 MR	40	u64 reg_id_aa64pfr0;
	41	u64 reg_id_aa64pfr1;
	42
80639d4a	43	u32 reg_id_dfr0;
df857416 MR	44	u32 reg_id_isar0;
	45	u32 reg_id_isar1;
	46	u32 reg_id_isar2;
	47	u32 reg_id_isar3;
	48	u32 reg_id_isar4;
	49	u32 reg_id_isar5;
	50	u32 reg_id_mmfr0;
	51	u32 reg_id_mmfr1;
	52	u32 reg_id_mmfr2;
	53	u32 reg_id_mmfr3;
	54	u32 reg_id_pfr0;
	55	u32 reg_id_pfr1;
80639d4a MR	56
	57	u32 reg_mvfr0;
	58	u32 reg_mvfr1;
	59	u32 reg_mvfr2;
df857416 MR	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
3c739b57	67	void __init init_cpu_features(struct cpuinfo_arm64 *info);
3086d391 SP	68	void update_cpu_features(int cpu, struct cpuinfo_arm64 *info,
3086d391 SP	69	struct cpuinfo_arm64 *boot);
cdcf817b	70
df857416	71	#endif /* __ASM_CPU_H */