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_ */ 133