1 /*- 2 * Copyright (c) 2013, 2014 Andrew Turner 3 * Copyright (c) 2015 The FreeBSD Foundation 4 * All rights reserved. 5 * 6 * This software was developed by Andrew Turner under 7 * sponsorship from the FreeBSD Foundation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * $FreeBSD$ 31 */ 32 33 #ifndef _MACHINE_ARMREG_H_ 34 #define _MACHINE_ARMREG_H_ 35 36 #define READ_SPECIALREG(reg) \ 37 ({ uint64_t val; \ 38 __asm __volatile("mrs %0, " __STRING(reg) : "=&r" (val)); \ 39 val; \ 40 }) 41 #define WRITE_SPECIALREG(reg, val) \ 42 __asm __volatile("msr " __STRING(reg) ", %0" : : "r"((uint64_t)val)) 43 44 /* CPACR_EL1 */ 45 #define CPACR_FPEN_MASK (0x3 << 20) 46 #define CPACR_FPEN_TRAP_ALL1 (0x0 << 20) /* Traps from EL0 and EL1 */ 47 #define CPACR_FPEN_TRAP_EL0 (0x1 << 20) /* Traps from EL0 */ 48 #define CPACR_FPEN_TRAP_ALL2 (0x2 << 20) /* Traps from EL0 and EL1 */ 49 #define CPACR_FPEN_TRAP_NONE (0x3 << 20) /* No traps */ 50 #define CPACR_TTA (0x1 << 28) 51 52 /* CTR_EL0 - Cache Type Register */ 53 #define CTR_DLINE_SHIFT 16 54 #define CTR_DLINE_MASK (0xf << CTR_DLINE_SHIFT) 55 #define CTR_DLINE_SIZE(reg) (((reg) & CTR_DLINE_MASK) >> CTR_DLINE_SHIFT) 56 #define CTR_ILINE_SHIFT 0 57 #define CTR_ILINE_MASK (0xf << CTR_ILINE_SHIFT) 58 #define CTR_ILINE_SIZE(reg) (((reg) & CTR_ILINE_MASK) >> CTR_ILINE_SHIFT) 59 60 /* ESR_ELx */ 61 #define ESR_ELx_ISS_MASK 0x00ffffff 62 #define ISS_INSN_FnV (0x01 << 10) 63 #define ISS_INSN_EA (0x01 << 9) 64 #define ISS_INSN_S1PTW (0x01 << 7) 65 #define ISS_INSN_IFSC_MASK (0x1f << 0) 66 #define ISS_DATA_ISV (0x01 << 24) 67 #define ISS_DATA_SAS_MASK (0x03 << 22) 68 #define ISS_DATA_SSE (0x01 << 21) 69 #define ISS_DATA_SRT_MASK (0x1f << 16) 70 #define ISS_DATA_SF (0x01 << 15) 71 #define ISS_DATA_AR (0x01 << 14) 72 #define ISS_DATA_FnV (0x01 << 10) 73 #define ISS_DATa_EA (0x01 << 9) 74 #define ISS_DATa_CM (0x01 << 8) 75 #define ISS_INSN_S1PTW (0x01 << 7) 76 #define ISS_DATa_WnR (0x01 << 6) 77 #define ISS_DATA_DFSC_MASK (0x1f << 0) 78 #define ESR_ELx_IL (0x01 << 25) 79 #define ESR_ELx_EC_SHIFT 26 80 #define ESR_ELx_EC_MASK (0x3f << 26) 81 #define ESR_ELx_EXCEPTION(esr) (((esr) & ESR_ELx_EC_MASK) >> ESR_ELx_EC_SHIFT) 82 #define EXCP_UNKNOWN 0x00 /* Unkwn exception */ 83 #define EXCP_FP_SIMD 0x07 /* VFP/SIMD trap */ 84 #define EXCP_ILL_STATE 0x0e /* Illegal execution state */ 85 #define EXCP_SVC 0x15 /* SVC trap */ 86 #define EXCP_MSR 0x18 /* MSR/MRS trap */ 87 #define EXCP_INSN_ABORT_L 0x20 /* Instruction abort, from lower EL */ 88 #define EXCP_INSN_ABORT 0x21 /* Instruction abort, from same EL */ 89 #define EXCP_PC_ALIGN 0x22 /* PC alignment fault */ 90 #define EXCP_DATA_ABORT_L 0x24 /* Data abort, from lower EL */ 91 #define EXCP_DATA_ABORT 0x25 /* Data abort, from same EL */ 92 #define EXCP_SP_ALIGN 0x26 /* SP slignment fault */ 93 #define EXCP_TRAP_FP 0x2c /* Trapped FP exception */ 94 #define EXCP_SERROR 0x2f /* SError interrupt */ 95 #define EXCP_SOFTSTP_EL1 0x33 /* Software Step, from same EL */ 96 #define EXCP_WATCHPT_EL1 0x35 /* Watchpoint, from same EL */ 97 #define EXCP_BRK 0x3c /* Breakpoint */ 98 99 /* ICC_CTLR_EL1 */ 100 #define ICC_CTLR_EL1_EOIMODE (1U << 1) 101 102 /* ICC_IAR1_EL1 */ 103 #define ICC_IAR1_EL1_SPUR (0x03ff) 104 105 /* ICC_IGRPEN0_EL1 */ 106 #define ICC_IGRPEN0_EL1_EN (1U << 0) 107 108 /* ICC_PMR_EL1 */ 109 #define ICC_PMR_EL1_PRIO_MASK (0xFFUL) 110 111 /* ICC_SRE_EL1 */ 112 #define ICC_SRE_EL1_SRE (1U << 0) 113 114 /* ICC_SRE_EL2 */ 115 #define ICC_SRE_EL2_EN (1U << 3) 116 117 /* ID_AA64PFR0_EL1 */ 118 #define ID_AA64PFR0_EL0_MASK (0xf << 0) 119 #define ID_AA64PFR0_EL1_MASK (0xf << 4) 120 #define ID_AA64PFR0_EL2_MASK (0xf << 8) 121 #define ID_AA64PFR0_EL3_MASK (0xf << 12) 122 #define ID_AA64PFR0_FP_MASK (0xf << 16) 123 #define ID_AA64PFR0_FP_IMPL (0x0 << 16) /* Floating-point implemented */ 124 #define ID_AA64PFR0_FP_NONE (0xf << 16) /* Floating-point not implemented */ 125 #define ID_AA64PFR0_ADV_SIMD_MASK (0xf << 20) 126 #define ID_AA64PFR0_GIC_SHIFT (24) 127 #define ID_AA64PFR0_GIC_BITS (0x4) /* Number of bits in GIC field */ 128 #define ID_AA64PFR0_GIC_MASK (0xf << ID_AA64PFR0_GIC_SHIFT) 129 #define ID_AA64PFR0_GIC_CPUIF_EN (0x1 << ID_AA64PFR0_GIC_SHIFT) 130 131 /* MAIR_EL1 - Memory Attribute Indirection Register */ 132 #define MAIR_ATTR_MASK(idx) (0xff << ((n)* 8)) 133 #define MAIR_ATTR(attr, idx) ((attr) << ((idx) * 8)) 134 135 /* SCTLR_EL1 - System Control Register */ 136 #define SCTLR_RES0 0xc8222400 /* Reserved, write 0 */ 137 #define SCTLR_RES1 0x30d00800 /* Reserved, write 1 */ 138 139 #define SCTLR_M 0x00000001 140 #define SCTLR_A 0x00000002 141 #define SCTLR_C 0x00000004 142 #define SCTLR_SA 0x00000008 143 #define SCTLR_SA0 0x00000010 144 #define SCTLR_CP15BEN 0x00000020 145 #define SCTLR_THEE 0x00000040 146 #define SCTLR_ITD 0x00000080 147 #define SCTLR_SED 0x00000100 148 #define SCTLR_UMA 0x00000200 149 #define SCTLR_I 0x00001000 150 #define SCTLR_DZE 0x00004000 151 #define SCTLR_UCT 0x00008000 152 #define SCTLR_nTWI 0x00010000 153 #define SCTLR_nTWE 0x00040000 154 #define SCTLR_WXN 0x00080000 155 #define SCTLR_EOE 0x01000000 156 #define SCTLR_EE 0x02000000 157 #define SCTLR_UCI 0x04000000 158 159 /* SPSR_EL1 */ 160 /* 161 * When the exception is taken in AArch64: 162 * M[4] is 0 for AArch64 mode 163 * M[3:2] is the exception level 164 * M[1] is unused 165 * M[0] is the SP select: 166 * 0: always SP0 167 * 1: current ELs SP 168 */ 169 #define PSR_M_EL0t 0x00000000 170 #define PSR_M_EL1t 0x00000004 171 #define PSR_M_EL1h 0x00000005 172 #define PSR_M_EL2t 0x00000008 173 #define PSR_M_EL2h 0x00000009 174 #define PSR_M_MASK 0x0000001f 175 176 #define PSR_F 0x00000040 177 #define PSR_I 0x00000080 178 #define PSR_A 0x00000100 179 #define PSR_D 0x00000200 180 #define PSR_IL 0x00100000 181 #define PSR_SS 0x00200000 182 #define PSR_V 0x10000000 183 #define PSR_C 0x20000000 184 #define PSR_Z 0x40000000 185 #define PSR_N 0x80000000 186 187 /* TCR_EL1 - Translation Control Register */ 188 #define TCR_ASID_16 (1 << 36) 189 190 #define TCR_IPS_SHIFT 32 191 #define TCR_IPS_32BIT (0 << TCR_IPS_SHIFT) 192 #define TCR_IPS_36BIT (1 << TCR_IPS_SHIFT) 193 #define TCR_IPS_40BIT (2 << TCR_IPS_SHIFT) 194 #define TCR_IPS_42BIT (3 << TCR_IPS_SHIFT) 195 #define TCR_IPS_44BIT (4 << TCR_IPS_SHIFT) 196 #define TCR_IPS_48BIT (5 << TCR_IPS_SHIFT) 197 198 #define TCR_TG1_SHIFT 30 199 #define TCR_TG1_16K (1 << TCR_TG1_SHIFT) 200 #define TCR_TG1_4K (2 << TCR_TG1_SHIFT) 201 #define TCR_TG1_64K (3 << TCR_TG1_SHIFT) 202 203 #define TCR_T1SZ_SHIFT 16 204 #define TCR_T0SZ_SHIFT 0 205 #define TCR_TxSZ(x) (((x) << TCR_T1SZ_SHIFT) | ((x) << TCR_T0SZ_SHIFT)) 206 207 /* Saved Program Status Register */ 208 #define DBG_SPSR_SS (0x1 << 21) 209 210 /* Monitor Debug System Control Register */ 211 #define DBG_MDSCR_SS (0x1 << 0) 212 #define DBG_MDSCR_KDE (0x1 << 13) 213 #define DBG_MDSCR_MDE (0x1 << 15) 214 215 /* Perfomance Monitoring Counters */ 216 #define PMCR_E (1 << 0) /* Enable all counters */ 217 #define PMCR_P (1 << 1) /* Reset all counters */ 218 #define PMCR_C (1 << 2) /* Clock counter reset */ 219 #define PMCR_D (1 << 3) /* CNTR counts every 64 clk cycles */ 220 #define PMCR_X (1 << 4) /* Export to ext. monitoring (ETM) */ 221 #define PMCR_DP (1 << 5) /* Disable CCNT if non-invasive debug*/ 222 #define PMCR_LC (1 << 6) /* Long cycle count enable */ 223 #define PMCR_IMP_SHIFT 24 /* Implementer code */ 224 #define PMCR_IMP_MASK (0xff << PMCR_IMP_SHIFT) 225 #define PMCR_IDCODE_SHIFT 16 /* Identification code */ 226 #define PMCR_IDCODE_MASK (0xff << PMCR_IDCODE_SHIFT) 227 #define PMCR_IDCODE_CORTEX_A57 0x01 228 #define PMCR_IDCODE_CORTEX_A72 0x02 229 #define PMCR_IDCODE_CORTEX_A53 0x03 230 #define PMCR_N_SHIFT 11 /* Number of counters implemented */ 231 #define PMCR_N_MASK (0x1f << PMCR_N_SHIFT) 232 233 #endif /* !_MACHINE_ARMREG_H_ */ 234