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1 /*-
2  * Copyright 2014 Svatopluk Kraus <onwahe@gmail.com>
3  * Copyright 2014 Michal Meloun <meloun@miracle.cz>
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  * $FreeBSD$
28  */
29
30 #ifndef _MACHINE_CPUINFO_H_
31 #define _MACHINE_CPUINFO_H_
32
33 #include <sys/types.h>
34
35 #define CPU_IMPLEMENTER_ARM             0x41
36 #define CPU_IMPLEMENTER_QCOM            0x51
37 #define CPU_IMPLEMENTER_MRVL            0x56
38
39 /* ARM */
40 #define CPU_ARCH_ARM1176                0xB76
41 #define CPU_ARCH_CORTEX_A5              0xC05
42 #define CPU_ARCH_CORTEX_A7              0xC07
43 #define CPU_ARCH_CORTEX_A8              0xC08
44 #define CPU_ARCH_CORTEX_A9              0xC09
45 #define CPU_ARCH_CORTEX_A12             0xC0D
46 #define CPU_ARCH_CORTEX_A15             0xC0F
47 #define CPU_ARCH_CORTEX_A17             0xC11
48 #define CPU_ARCH_CORTEX_A53             0xD03
49 #define CPU_ARCH_CORTEX_A57             0xD07
50 #define CPU_ARCH_CORTEX_A72             0xD08
51 #define CPU_ARCH_CORTEX_A73             0xD09
52 #define CPU_ARCH_CORTEX_A75             0xD0A
53
54
55 /* QCOM */
56 #define CPU_ARCH_KRAIT_300              0x06F
57
58 /* MRVL */
59 #define CPU_ARCH_SHEEVA_581             0x581   /* PJ4/PJ4B */
60 #define CPU_ARCH_SHEEVA_584             0x584   /* PJ4B-MP/PJ4C */
61
62 struct cpuinfo {
63         /* raw id registers */
64         uint32_t midr;
65         uint32_t ctr;
66         uint32_t tcmtr;
67         uint32_t tlbtr;
68         uint32_t mpidr;
69         uint32_t revidr;
70         uint32_t id_pfr0;
71         uint32_t id_pfr1;
72         uint32_t id_dfr0;
73         uint32_t id_afr0;
74         uint32_t id_mmfr0;
75         uint32_t id_mmfr1;
76         uint32_t id_mmfr2;
77         uint32_t id_mmfr3;
78         uint32_t id_isar0;
79         uint32_t id_isar1;
80         uint32_t id_isar2;
81         uint32_t id_isar3;
82         uint32_t id_isar4;
83         uint32_t id_isar5;
84         uint32_t cbar;
85         uint32_t ccsidr;
86         uint32_t clidr;
87
88         /* Parsed bits of above registers... */
89
90         /* midr */
91         int implementer;
92         int revision;
93         int architecture;
94         int part_number;
95         int patch;
96
97         /* id_mmfr0 */
98         int outermost_shareability;
99         int shareability_levels;
100         int auxiliary_registers;
101         int innermost_shareability;
102
103         /* id_mmfr1 */
104         int mem_barrier;
105
106         /* id_mmfr3 */
107         int coherent_walk;
108         int maintenance_broadcast;
109
110         /* id_pfr1 */
111         int generic_timer_ext;
112         int virtualization_ext;
113         int security_ext;
114
115         /* L1 cache info */
116         int dcache_line_size;
117         int dcache_line_mask;
118         int icache_line_size;
119         int icache_line_mask;
120
121         /* mpidr */
122         int mp_ext;
123 };
124
125 extern struct cpuinfo cpuinfo;
126
127 void cpuinfo_init(void);
128 #if __ARM_ARCH >= 6
129 void cpuinfo_init_bp_hardening(void);
130 void cpuinfo_reinit_mmu(uint32_t ttb);
131 #endif
132 #endif  /* _MACHINE_CPUINFO_H_ */