Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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 struct kobject kobj;
29 u32 reg_ctr;
30 u32 reg_cntfrq;
31 u32 reg_dczid;
32 u32 reg_midr;
33 u32 reg_revidr;
34
35 u64 reg_id_aa64dfr0;
36 u64 reg_id_aa64dfr1;
37 u64 reg_id_aa64isar0;
38 u64 reg_id_aa64isar1;
39 u64 reg_id_aa64mmfr0;
40 u64 reg_id_aa64mmfr1;
41 u64 reg_id_aa64mmfr2;
42 u64 reg_id_aa64pfr0;
43 u64 reg_id_aa64pfr1;
44
45 u32 reg_id_dfr0;
46 u32 reg_id_isar0;
47 u32 reg_id_isar1;
48 u32 reg_id_isar2;
49 u32 reg_id_isar3;
50 u32 reg_id_isar4;
51 u32 reg_id_isar5;
52 u32 reg_id_mmfr0;
53 u32 reg_id_mmfr1;
54 u32 reg_id_mmfr2;
55 u32 reg_id_mmfr3;
56 u32 reg_id_pfr0;
57 u32 reg_id_pfr1;
58
59 u32 reg_mvfr0;
60 u32 reg_mvfr1;
61 u32 reg_mvfr2;
62};
63
64DECLARE_PER_CPU(struct cpuinfo_arm64, cpu_data);
65
66void cpuinfo_store_cpu(void);
67void __init cpuinfo_store_boot_cpu(void);
68
69void __init init_cpu_features(struct cpuinfo_arm64 *info);
70void update_cpu_features(int cpu, struct cpuinfo_arm64 *info,
71 struct cpuinfo_arm64 *boot);
72
73#endif /* __ASM_CPU_H */