1 /*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * Copyright (c) 2014-2016 The FreeBSD Foundation 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * William Jolitz. 8 * 9 * Portions of this software were developed by Andrew Turner 10 * under sponsorship from the FreeBSD Foundation 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * from: FreeBSD: src/sys/i386/include/cpu.h,v 1.62 2001/06/29 36 */ 37 38 #ifdef __arm__ 39 #include <arm/cpu.h> 40 #else /* !__arm__ */ 41 42 #ifndef _MACHINE_CPU_H_ 43 #define _MACHINE_CPU_H_ 44 45 #if !defined(__ASSEMBLER__) 46 #include <machine/atomic.h> 47 #include <machine/frame.h> 48 #endif 49 #include <machine/armreg.h> 50 51 #define TRAPF_PC(tfp) ((tfp)->tf_elr) 52 #define TRAPF_USERMODE(tfp) (((tfp)->tf_spsr & PSR_M_MASK) == PSR_M_EL0t) 53 54 #define cpu_getstack(td) ((td)->td_frame->tf_sp) 55 #define cpu_setstack(td, sp) ((td)->td_frame->tf_sp = (sp)) 56 #define cpu_spinwait() __asm __volatile("yield" ::: "memory") 57 #define cpu_lock_delay() DELAY(1) 58 59 /* Extract CPU affinity levels 0-3 */ 60 #define CPU_AFF0(mpidr) (u_int)(((mpidr) >> 0) & 0xff) 61 #define CPU_AFF1(mpidr) (u_int)(((mpidr) >> 8) & 0xff) 62 #define CPU_AFF2(mpidr) (u_int)(((mpidr) >> 16) & 0xff) 63 #define CPU_AFF3(mpidr) (u_int)(((mpidr) >> 32) & 0xff) 64 #define CPU_AFF0_MASK 0xffUL 65 #define CPU_AFF1_MASK 0xff00UL 66 #define CPU_AFF2_MASK 0xff0000UL 67 #define CPU_AFF3_MASK 0xff00000000UL 68 #define CPU_AFF_MASK (CPU_AFF0_MASK | CPU_AFF1_MASK | \ 69 CPU_AFF2_MASK| CPU_AFF3_MASK) /* Mask affinity fields in MPIDR_EL1 */ 70 71 #ifdef _KERNEL 72 73 #define CPU_IMPL_ARM 0x41 74 #define CPU_IMPL_BROADCOM 0x42 75 #define CPU_IMPL_CAVIUM 0x43 76 #define CPU_IMPL_DEC 0x44 77 #define CPU_IMPL_FUJITSU 0x46 78 #define CPU_IMPL_HISILICON 0x48 79 #define CPU_IMPL_INFINEON 0x49 80 #define CPU_IMPL_FREESCALE 0x4D 81 #define CPU_IMPL_NVIDIA 0x4E 82 #define CPU_IMPL_APM 0x50 83 #define CPU_IMPL_QUALCOMM 0x51 84 #define CPU_IMPL_MARVELL 0x56 85 #define CPU_IMPL_APPLE 0x61 86 #define CPU_IMPL_INTEL 0x69 87 #define CPU_IMPL_AMPERE 0xC0 88 #define CPU_IMPL_MICROSOFT 0x6D 89 90 /* ARM Part numbers */ 91 #define CPU_PART_FOUNDATION 0xD00 92 #define CPU_PART_CORTEX_A34 0xD02 93 #define CPU_PART_CORTEX_A53 0xD03 94 #define CPU_PART_CORTEX_A35 0xD04 95 #define CPU_PART_CORTEX_A55 0xD05 96 #define CPU_PART_CORTEX_A65 0xD06 97 #define CPU_PART_CORTEX_A57 0xD07 98 #define CPU_PART_CORTEX_A72 0xD08 99 #define CPU_PART_CORTEX_A73 0xD09 100 #define CPU_PART_CORTEX_A75 0xD0A 101 #define CPU_PART_CORTEX_A76 0xD0B 102 #define CPU_PART_NEOVERSE_N1 0xD0C 103 #define CPU_PART_CORTEX_A77 0xD0D 104 #define CPU_PART_CORTEX_A76AE 0xD0E 105 #define CPU_PART_AEM_V8 0xD0F 106 #define CPU_PART_NEOVERSE_V1 0xD40 107 #define CPU_PART_CORTEX_A78 0xD41 108 #define CPU_PART_CORTEX_A78AE 0xD42 109 #define CPU_PART_CORTEX_A65AE 0xD43 110 #define CPU_PART_CORTEX_X1 0xD44 111 #define CPU_PART_CORTEX_A510 0xD46 112 #define CPU_PART_CORTEX_A710 0xD47 113 #define CPU_PART_CORTEX_X2 0xD48 114 #define CPU_PART_NEOVERSE_N2 0xD49 115 #define CPU_PART_NEOVERSE_E1 0xD4A 116 #define CPU_PART_CORTEX_A78C 0xD4B 117 #define CPU_PART_CORTEX_X1C 0xD4C 118 #define CPU_PART_CORTEX_A715 0xD4D 119 #define CPU_PART_CORTEX_X3 0xD4E 120 #define CPU_PART_NEOVERSE_V2 0xD4F 121 #define CPU_PART_CORTEX_A520 0xD80 122 #define CPU_PART_CORTEX_A720 0xD81 123 #define CPU_PART_CORTEX_X4 0xD82 124 #define CPU_PART_NEOVERSE_V3AE 0xD83 125 #define CPU_PART_NEOVERSE_V3 0xD84 126 #define CPU_PART_CORTEX_X925 0xD85 127 #define CPU_PART_CORTEX_A725 0xD87 128 #define CPU_PART_NEOVERSE_N3 0xD8E 129 130 /* Cavium Part numbers */ 131 #define CPU_PART_THUNDERX 0x0A1 132 #define CPU_PART_THUNDERX_81XX 0x0A2 133 #define CPU_PART_THUNDERX_83XX 0x0A3 134 #define CPU_PART_THUNDERX2 0x0AF 135 136 #define CPU_REV_THUNDERX_1_0 0x00 137 #define CPU_REV_THUNDERX_1_1 0x01 138 139 #define CPU_REV_THUNDERX2_0 0x00 140 141 /* APM (now Ampere) Part number */ 142 #define CPU_PART_EMAG8180 0x000 143 144 /* Ampere Part numbers */ 145 #define CPU_PART_AMPERE1 0xAC3 146 #define CPU_PART_AMPERE1A 0xAC4 147 148 /* Microsoft Part numbers */ 149 #define CPU_PART_AZURE_COBALT_100 0xD49 150 151 /* Qualcomm */ 152 #define CPU_PART_KRYO400_GOLD 0x804 153 #define CPU_PART_KRYO400_SILVER 0x805 154 155 /* Apple part numbers */ 156 #define CPU_PART_M1_ICESTORM 0x022 157 #define CPU_PART_M1_FIRESTORM 0x023 158 #define CPU_PART_M1_ICESTORM_PRO 0x024 159 #define CPU_PART_M1_FIRESTORM_PRO 0x025 160 #define CPU_PART_M1_ICESTORM_MAX 0x028 161 #define CPU_PART_M1_FIRESTORM_MAX 0x029 162 #define CPU_PART_M2_BLIZZARD 0x032 163 #define CPU_PART_M2_AVALANCHE 0x033 164 #define CPU_PART_M2_BLIZZARD_PRO 0x034 165 #define CPU_PART_M2_AVALANCHE_PRO 0x035 166 #define CPU_PART_M2_BLIZZARD_MAX 0x038 167 #define CPU_PART_M2_AVALANCHE_MAX 0x039 168 169 #define CPU_IMPL(midr) (((midr) >> 24) & 0xff) 170 #define CPU_PART(midr) (((midr) >> 4) & 0xfff) 171 #define CPU_VAR(midr) (((midr) >> 20) & 0xf) 172 #define CPU_ARCH(midr) (((midr) >> 16) & 0xf) 173 #define CPU_REV(midr) (((midr) >> 0) & 0xf) 174 175 #define CPU_IMPL_TO_MIDR(val) (((val) & 0xff) << 24) 176 #define CPU_PART_TO_MIDR(val) (((val) & 0xfff) << 4) 177 #define CPU_VAR_TO_MIDR(val) (((val) & 0xf) << 20) 178 #define CPU_ARCH_TO_MIDR(val) (((val) & 0xf) << 16) 179 #define CPU_REV_TO_MIDR(val) (((val) & 0xf) << 0) 180 181 #define CPU_IMPL_MASK (0xff << 24) 182 #define CPU_PART_MASK (0xfff << 4) 183 #define CPU_VAR_MASK (0xf << 20) 184 #define CPU_ARCH_MASK (0xf << 16) 185 #define CPU_REV_MASK (0xf << 0) 186 187 #define CPU_ID_RAW(impl, part, var, rev) \ 188 (CPU_IMPL_TO_MIDR((impl)) | \ 189 CPU_PART_TO_MIDR((part)) | CPU_VAR_TO_MIDR((var)) | \ 190 CPU_REV_TO_MIDR((rev))) 191 192 #define CPU_MATCH(mask, impl, part, var, rev) \ 193 (((mask) & PCPU_GET(midr)) == \ 194 ((mask) & CPU_ID_RAW((impl), (part), (var), (rev)))) 195 196 #if !defined(__ASSEMBLER__) 197 static inline bool 198 midr_check_var_part_range(u_int midr, u_int impl, u_int part, u_int var_low, 199 u_int part_low, u_int var_high, u_int part_high) 200 { 201 /* Check for the correct part */ 202 if (CPU_IMPL(midr) != impl || CPU_PART(midr) != part) 203 return (false); 204 205 /* Check if the variant is between var_low and var_high inclusive */ 206 if (CPU_VAR(midr) < var_low || CPU_VAR(midr) > var_high) 207 return (false); 208 209 /* If the variant is the low value, check if the part is high enough */ 210 if (CPU_VAR(midr) == var_low && CPU_PART(midr) < part_low) 211 return (false); 212 213 /* If the variant is the high value, check if the part is low enough */ 214 if (CPU_VAR(midr) == var_high && CPU_PART(midr) > part_high) 215 return (false); 216 217 return (true); 218 } 219 #endif 220 221 /* 222 * Chip-specific errata. This defines are intended to be 223 * booleans used within if statements. When an appropriate 224 * kernel option is disabled, these defines must be defined 225 * as 0 to allow the compiler to remove a dead code thus 226 * produce better optimized kernel image. 227 */ 228 /* 229 * Vendor: Cavium 230 * Chip: ThunderX 231 * Revision(s): Pass 1.0, Pass 1.1 232 */ 233 #ifdef THUNDERX_PASS_1_1_ERRATA 234 #define CPU_MATCH_ERRATA_CAVIUM_THUNDERX_1_1 \ 235 (CPU_MATCH(CPU_IMPL_MASK | CPU_PART_MASK | CPU_REV_MASK, \ 236 CPU_IMPL_CAVIUM, CPU_PART_THUNDERX, 0, CPU_REV_THUNDERX_1_0) || \ 237 CPU_MATCH(CPU_IMPL_MASK | CPU_PART_MASK | CPU_REV_MASK, \ 238 CPU_IMPL_CAVIUM, CPU_PART_THUNDERX, 0, CPU_REV_THUNDERX_1_1)) 239 #else 240 #define CPU_MATCH_ERRATA_CAVIUM_THUNDERX_1_1 0 241 #endif 242 243 #if !defined(__ASSEMBLER__) 244 extern char btext[]; 245 extern char etext[]; 246 247 extern uint64_t __cpu_affinity[]; 248 249 struct arm64_addr_mask; 250 extern struct arm64_addr_mask elf64_addr_mask; 251 #ifdef COMPAT_FREEBSD14 252 extern struct arm64_addr_mask elf64_addr_mask_14; 253 #endif 254 255 typedef void (*cpu_reset_hook_t)(void); 256 extern cpu_reset_hook_t cpu_reset_hook; 257 258 void cpu_halt(void) __dead2; 259 void cpu_reset(void) __dead2; 260 void fork_trampoline(void); 261 void identify_cache(uint64_t); 262 void identify_cpu(u_int); 263 void install_cpu_errata(void); 264 265 /* Pointer Authentication Code (PAC) support */ 266 void ptrauth_init(void); 267 void ptrauth_fork(struct thread *, struct thread *); 268 void ptrauth_exec(struct thread *); 269 void ptrauth_copy_thread(struct thread *, struct thread *); 270 void ptrauth_thread_alloc(struct thread *); 271 void ptrauth_thread0(struct thread *); 272 #ifdef SMP 273 void ptrauth_mp_start(uint64_t); 274 #endif 275 276 /* Functions to read the sanitised view of the special registers */ 277 void update_special_regs(u_int); 278 void update_special_reg_iss(u_int, uint64_t, uint64_t); 279 #define update_special_reg(reg, clear, set) \ 280 update_special_reg_iss(reg ## _ISS, clear, set) 281 bool get_kernel_reg_iss(u_int, uint64_t *); 282 #define get_kernel_reg(reg, valp) \ 283 get_kernel_reg_iss(reg ## _ISS, valp) 284 bool get_kernel_reg_iss_masked(u_int, uint64_t *, uint64_t); 285 #define get_kernel_reg_masked(reg, valp, mask) \ 286 get_kernel_reg_iss_masked(reg ## _ISS, valp, mask) 287 bool get_user_reg_iss(u_int, uint64_t *, bool); 288 #define get_user_reg(reg, valp, fbsd) \ 289 get_user_reg_iss(reg ## _ISS, valp, fbsd) 290 291 void cpu_desc_init(void); 292 293 #define CPU_AFFINITY(cpu) __cpu_affinity[(cpu)] 294 #define CPU_CURRENT_SOCKET \ 295 (CPU_AFF2(CPU_AFFINITY(PCPU_GET(cpuid)))) 296 297 static __inline uint64_t 298 get_cyclecount(void) 299 { 300 uint64_t ret; 301 302 ret = READ_SPECIALREG(cntvct_el0); 303 304 return (ret); 305 } 306 307 #define ADDRESS_TRANSLATE_FUNC(stage) \ 308 static inline uint64_t \ 309 arm64_address_translate_ ##stage (uint64_t addr) \ 310 { \ 311 uint64_t ret; \ 312 \ 313 __asm __volatile( \ 314 "at " __STRING(stage) ", %1 \n" \ 315 "isb \n" \ 316 "mrs %0, par_el1" : "=r"(ret) : "r"(addr)); \ 317 \ 318 return (ret); \ 319 } 320 321 ADDRESS_TRANSLATE_FUNC(s1e0r) 322 ADDRESS_TRANSLATE_FUNC(s1e0w) 323 ADDRESS_TRANSLATE_FUNC(s1e1r) 324 ADDRESS_TRANSLATE_FUNC(s1e1w) 325 326 #endif /* !__ASSEMBLER__ */ 327 #endif 328 329 #endif /* !_MACHINE_CPU_H_ */ 330 331 #endif /* !__arm__ */ 332