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 */
26struct cpuinfo_arm64 {
27	struct cpu	cpu;
28	u32		reg_ctr;
29	u32		reg_cntfrq;
30	u32		reg_dczid;
31	u32		reg_midr;
32
33	u64		reg_id_aa64dfr0;
34	u64		reg_id_aa64dfr1;
35	u64		reg_id_aa64isar0;
36	u64		reg_id_aa64isar1;
37	u64		reg_id_aa64mmfr0;
38	u64		reg_id_aa64mmfr1;
39	u64		reg_id_aa64pfr0;
40	u64		reg_id_aa64pfr1;
41
42	u32		reg_id_dfr0;
43	u32		reg_id_isar0;
44	u32		reg_id_isar1;
45	u32		reg_id_isar2;
46	u32		reg_id_isar3;
47	u32		reg_id_isar4;
48	u32		reg_id_isar5;
49	u32		reg_id_mmfr0;
50	u32		reg_id_mmfr1;
51	u32		reg_id_mmfr2;
52	u32		reg_id_mmfr3;
53	u32		reg_id_pfr0;
54	u32		reg_id_pfr1;
55
56	u32		reg_mvfr0;
57	u32		reg_mvfr1;
58	u32		reg_mvfr2;
59};
60
61DECLARE_PER_CPU(struct cpuinfo_arm64, cpu_data);
62
63void cpuinfo_store_cpu(void);
64void __init cpuinfo_store_boot_cpu(void);
65
66void __init init_cpu_features(struct cpuinfo_arm64 *info);
67void update_cpu_features(int cpu, struct cpuinfo_arm64 *info,
68				 struct cpuinfo_arm64 *boot);
69
70#endif /* __ASM_CPU_H */
71