1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * asm-offsets.c: Calculate pt_regs and task_struct offsets. 4 * 5 * Copyright (C) 1996 David S. Miller 6 * Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003 Ralf Baechle 7 * Copyright (C) 1999, 2000 Silicon Graphics, Inc. 8 * 9 * Kevin Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com 10 * Copyright (C) 2000 MIPS Technologies, Inc. 11 */ 12 #include <linux/compat.h> 13 #include <linux/types.h> 14 #include <linux/sched.h> 15 #include <linux/mm.h> 16 #include <linux/kbuild.h> 17 #include <linux/suspend.h> 18 #include <asm/cpu-info.h> 19 #include <asm/pm.h> 20 #include <asm/ptrace.h> 21 #include <asm/processor.h> 22 #include <asm/smp-cps.h> 23 24 #include <linux/kvm_host.h> 25 26 void output_ptreg_defines(void) 27 { 28 COMMENT("MIPS pt_regs offsets."); 29 OFFSET(PT_R0, pt_regs, regs[0]); 30 OFFSET(PT_R1, pt_regs, regs[1]); 31 OFFSET(PT_R2, pt_regs, regs[2]); 32 OFFSET(PT_R3, pt_regs, regs[3]); 33 OFFSET(PT_R4, pt_regs, regs[4]); 34 OFFSET(PT_R5, pt_regs, regs[5]); 35 OFFSET(PT_R6, pt_regs, regs[6]); 36 OFFSET(PT_R7, pt_regs, regs[7]); 37 OFFSET(PT_R8, pt_regs, regs[8]); 38 OFFSET(PT_R9, pt_regs, regs[9]); 39 OFFSET(PT_R10, pt_regs, regs[10]); 40 OFFSET(PT_R11, pt_regs, regs[11]); 41 OFFSET(PT_R12, pt_regs, regs[12]); 42 OFFSET(PT_R13, pt_regs, regs[13]); 43 OFFSET(PT_R14, pt_regs, regs[14]); 44 OFFSET(PT_R15, pt_regs, regs[15]); 45 OFFSET(PT_R16, pt_regs, regs[16]); 46 OFFSET(PT_R17, pt_regs, regs[17]); 47 OFFSET(PT_R18, pt_regs, regs[18]); 48 OFFSET(PT_R19, pt_regs, regs[19]); 49 OFFSET(PT_R20, pt_regs, regs[20]); 50 OFFSET(PT_R21, pt_regs, regs[21]); 51 OFFSET(PT_R22, pt_regs, regs[22]); 52 OFFSET(PT_R23, pt_regs, regs[23]); 53 OFFSET(PT_R24, pt_regs, regs[24]); 54 OFFSET(PT_R25, pt_regs, regs[25]); 55 OFFSET(PT_R26, pt_regs, regs[26]); 56 OFFSET(PT_R27, pt_regs, regs[27]); 57 OFFSET(PT_R28, pt_regs, regs[28]); 58 OFFSET(PT_R29, pt_regs, regs[29]); 59 OFFSET(PT_R30, pt_regs, regs[30]); 60 OFFSET(PT_R31, pt_regs, regs[31]); 61 OFFSET(PT_LO, pt_regs, lo); 62 OFFSET(PT_HI, pt_regs, hi); 63 #ifdef CONFIG_CPU_HAS_SMARTMIPS 64 OFFSET(PT_ACX, pt_regs, acx); 65 #endif 66 OFFSET(PT_EPC, pt_regs, cp0_epc); 67 OFFSET(PT_BVADDR, pt_regs, cp0_badvaddr); 68 OFFSET(PT_STATUS, pt_regs, cp0_status); 69 OFFSET(PT_CAUSE, pt_regs, cp0_cause); 70 #ifdef CONFIG_CPU_CAVIUM_OCTEON 71 OFFSET(PT_MPL, pt_regs, mpl); 72 OFFSET(PT_MTP, pt_regs, mtp); 73 #endif /* CONFIG_CPU_CAVIUM_OCTEON */ 74 DEFINE(PT_SIZE, sizeof(struct pt_regs)); 75 BLANK(); 76 } 77 78 void output_task_defines(void) 79 { 80 COMMENT("MIPS task_struct offsets."); 81 OFFSET(TASK_THREAD_INFO, task_struct, stack); 82 OFFSET(TASK_FLAGS, task_struct, flags); 83 OFFSET(TASK_MM, task_struct, mm); 84 OFFSET(TASK_PID, task_struct, pid); 85 #if defined(CONFIG_STACKPROTECTOR) 86 OFFSET(TASK_STACK_CANARY, task_struct, stack_canary); 87 #endif 88 DEFINE(TASK_STRUCT_SIZE, sizeof(struct task_struct)); 89 BLANK(); 90 } 91 92 void output_thread_info_defines(void) 93 { 94 COMMENT("MIPS thread_info offsets."); 95 OFFSET(TI_TASK, thread_info, task); 96 OFFSET(TI_FLAGS, thread_info, flags); 97 OFFSET(TI_TP_VALUE, thread_info, tp_value); 98 OFFSET(TI_CPU, thread_info, cpu); 99 OFFSET(TI_PRE_COUNT, thread_info, preempt_count); 100 OFFSET(TI_REGS, thread_info, regs); 101 DEFINE(_THREAD_SIZE, THREAD_SIZE); 102 DEFINE(_THREAD_MASK, THREAD_MASK); 103 DEFINE(_IRQ_STACK_SIZE, IRQ_STACK_SIZE); 104 DEFINE(_IRQ_STACK_START, IRQ_STACK_START); 105 BLANK(); 106 } 107 108 void output_thread_defines(void) 109 { 110 COMMENT("MIPS specific thread_struct offsets."); 111 OFFSET(THREAD_REG16, task_struct, thread.reg16); 112 OFFSET(THREAD_REG17, task_struct, thread.reg17); 113 OFFSET(THREAD_REG18, task_struct, thread.reg18); 114 OFFSET(THREAD_REG19, task_struct, thread.reg19); 115 OFFSET(THREAD_REG20, task_struct, thread.reg20); 116 OFFSET(THREAD_REG21, task_struct, thread.reg21); 117 OFFSET(THREAD_REG22, task_struct, thread.reg22); 118 OFFSET(THREAD_REG23, task_struct, thread.reg23); 119 OFFSET(THREAD_REG29, task_struct, thread.reg29); 120 OFFSET(THREAD_REG30, task_struct, thread.reg30); 121 OFFSET(THREAD_REG31, task_struct, thread.reg31); 122 OFFSET(THREAD_STATUS, task_struct, 123 thread.cp0_status); 124 125 OFFSET(THREAD_BVADDR, task_struct, \ 126 thread.cp0_badvaddr); 127 OFFSET(THREAD_BUADDR, task_struct, \ 128 thread.cp0_baduaddr); 129 OFFSET(THREAD_ECODE, task_struct, \ 130 thread.error_code); 131 OFFSET(THREAD_TRAPNO, task_struct, thread.trap_nr); 132 BLANK(); 133 } 134 135 #ifdef CONFIG_MIPS_FP_SUPPORT 136 void output_thread_fpu_defines(void) 137 { 138 OFFSET(THREAD_FPU, task_struct, thread.fpu); 139 140 OFFSET(THREAD_FPR0, task_struct, thread.fpu.fpr[0]); 141 OFFSET(THREAD_FPR1, task_struct, thread.fpu.fpr[1]); 142 OFFSET(THREAD_FPR2, task_struct, thread.fpu.fpr[2]); 143 OFFSET(THREAD_FPR3, task_struct, thread.fpu.fpr[3]); 144 OFFSET(THREAD_FPR4, task_struct, thread.fpu.fpr[4]); 145 OFFSET(THREAD_FPR5, task_struct, thread.fpu.fpr[5]); 146 OFFSET(THREAD_FPR6, task_struct, thread.fpu.fpr[6]); 147 OFFSET(THREAD_FPR7, task_struct, thread.fpu.fpr[7]); 148 OFFSET(THREAD_FPR8, task_struct, thread.fpu.fpr[8]); 149 OFFSET(THREAD_FPR9, task_struct, thread.fpu.fpr[9]); 150 OFFSET(THREAD_FPR10, task_struct, thread.fpu.fpr[10]); 151 OFFSET(THREAD_FPR11, task_struct, thread.fpu.fpr[11]); 152 OFFSET(THREAD_FPR12, task_struct, thread.fpu.fpr[12]); 153 OFFSET(THREAD_FPR13, task_struct, thread.fpu.fpr[13]); 154 OFFSET(THREAD_FPR14, task_struct, thread.fpu.fpr[14]); 155 OFFSET(THREAD_FPR15, task_struct, thread.fpu.fpr[15]); 156 OFFSET(THREAD_FPR16, task_struct, thread.fpu.fpr[16]); 157 OFFSET(THREAD_FPR17, task_struct, thread.fpu.fpr[17]); 158 OFFSET(THREAD_FPR18, task_struct, thread.fpu.fpr[18]); 159 OFFSET(THREAD_FPR19, task_struct, thread.fpu.fpr[19]); 160 OFFSET(THREAD_FPR20, task_struct, thread.fpu.fpr[20]); 161 OFFSET(THREAD_FPR21, task_struct, thread.fpu.fpr[21]); 162 OFFSET(THREAD_FPR22, task_struct, thread.fpu.fpr[22]); 163 OFFSET(THREAD_FPR23, task_struct, thread.fpu.fpr[23]); 164 OFFSET(THREAD_FPR24, task_struct, thread.fpu.fpr[24]); 165 OFFSET(THREAD_FPR25, task_struct, thread.fpu.fpr[25]); 166 OFFSET(THREAD_FPR26, task_struct, thread.fpu.fpr[26]); 167 OFFSET(THREAD_FPR27, task_struct, thread.fpu.fpr[27]); 168 OFFSET(THREAD_FPR28, task_struct, thread.fpu.fpr[28]); 169 OFFSET(THREAD_FPR29, task_struct, thread.fpu.fpr[29]); 170 OFFSET(THREAD_FPR30, task_struct, thread.fpu.fpr[30]); 171 OFFSET(THREAD_FPR31, task_struct, thread.fpu.fpr[31]); 172 173 OFFSET(THREAD_FCR31, task_struct, thread.fpu.fcr31); 174 OFFSET(THREAD_MSA_CSR, task_struct, thread.fpu.msacsr); 175 BLANK(); 176 } 177 #endif 178 179 void output_mm_defines(void) 180 { 181 COMMENT("Size of struct page"); 182 DEFINE(STRUCT_PAGE_SIZE, sizeof(struct page)); 183 BLANK(); 184 COMMENT("Linux mm_struct offsets."); 185 OFFSET(MM_USERS, mm_struct, mm_users); 186 OFFSET(MM_PGD, mm_struct, pgd); 187 OFFSET(MM_CONTEXT, mm_struct, context); 188 BLANK(); 189 DEFINE(_PGD_T_SIZE, sizeof(pgd_t)); 190 DEFINE(_PMD_T_SIZE, sizeof(pmd_t)); 191 DEFINE(_PTE_T_SIZE, sizeof(pte_t)); 192 BLANK(); 193 DEFINE(_PGD_T_LOG2, PGD_T_LOG2); 194 #ifndef __PAGETABLE_PMD_FOLDED 195 DEFINE(_PMD_T_LOG2, PMD_T_LOG2); 196 #endif 197 DEFINE(_PTE_T_LOG2, PTE_T_LOG2); 198 BLANK(); 199 BLANK(); 200 DEFINE(_PMD_SHIFT, PMD_SHIFT); 201 DEFINE(_PGDIR_SHIFT, PGDIR_SHIFT); 202 BLANK(); 203 DEFINE(_PTRS_PER_PGD, PTRS_PER_PGD); 204 DEFINE(_PTRS_PER_PMD, PTRS_PER_PMD); 205 DEFINE(_PTRS_PER_PTE, PTRS_PER_PTE); 206 BLANK(); 207 DEFINE(_PAGE_SHIFT, PAGE_SHIFT); 208 DEFINE(_PAGE_SIZE, PAGE_SIZE); 209 BLANK(); 210 } 211 212 #ifdef CONFIG_32BIT 213 void output_sc_defines(void) 214 { 215 COMMENT("Linux sigcontext offsets."); 216 OFFSET(SC_REGS, sigcontext, sc_regs); 217 OFFSET(SC_FPREGS, sigcontext, sc_fpregs); 218 OFFSET(SC_ACX, sigcontext, sc_acx); 219 OFFSET(SC_MDHI, sigcontext, sc_mdhi); 220 OFFSET(SC_MDLO, sigcontext, sc_mdlo); 221 OFFSET(SC_PC, sigcontext, sc_pc); 222 OFFSET(SC_FPC_CSR, sigcontext, sc_fpc_csr); 223 OFFSET(SC_FPC_EIR, sigcontext, sc_fpc_eir); 224 OFFSET(SC_HI1, sigcontext, sc_hi1); 225 OFFSET(SC_LO1, sigcontext, sc_lo1); 226 OFFSET(SC_HI2, sigcontext, sc_hi2); 227 OFFSET(SC_LO2, sigcontext, sc_lo2); 228 OFFSET(SC_HI3, sigcontext, sc_hi3); 229 OFFSET(SC_LO3, sigcontext, sc_lo3); 230 BLANK(); 231 } 232 #endif 233 234 #ifdef CONFIG_64BIT 235 void output_sc_defines(void) 236 { 237 COMMENT("Linux sigcontext offsets."); 238 OFFSET(SC_REGS, sigcontext, sc_regs); 239 OFFSET(SC_FPREGS, sigcontext, sc_fpregs); 240 OFFSET(SC_MDHI, sigcontext, sc_mdhi); 241 OFFSET(SC_MDLO, sigcontext, sc_mdlo); 242 OFFSET(SC_PC, sigcontext, sc_pc); 243 OFFSET(SC_FPC_CSR, sigcontext, sc_fpc_csr); 244 BLANK(); 245 } 246 #endif 247 248 void output_signal_defined(void) 249 { 250 COMMENT("Linux signal numbers."); 251 DEFINE(_SIGHUP, SIGHUP); 252 DEFINE(_SIGINT, SIGINT); 253 DEFINE(_SIGQUIT, SIGQUIT); 254 DEFINE(_SIGILL, SIGILL); 255 DEFINE(_SIGTRAP, SIGTRAP); 256 DEFINE(_SIGIOT, SIGIOT); 257 DEFINE(_SIGABRT, SIGABRT); 258 DEFINE(_SIGEMT, SIGEMT); 259 DEFINE(_SIGFPE, SIGFPE); 260 DEFINE(_SIGKILL, SIGKILL); 261 DEFINE(_SIGBUS, SIGBUS); 262 DEFINE(_SIGSEGV, SIGSEGV); 263 DEFINE(_SIGSYS, SIGSYS); 264 DEFINE(_SIGPIPE, SIGPIPE); 265 DEFINE(_SIGALRM, SIGALRM); 266 DEFINE(_SIGTERM, SIGTERM); 267 DEFINE(_SIGUSR1, SIGUSR1); 268 DEFINE(_SIGUSR2, SIGUSR2); 269 DEFINE(_SIGCHLD, SIGCHLD); 270 DEFINE(_SIGPWR, SIGPWR); 271 DEFINE(_SIGWINCH, SIGWINCH); 272 DEFINE(_SIGURG, SIGURG); 273 DEFINE(_SIGIO, SIGIO); 274 DEFINE(_SIGSTOP, SIGSTOP); 275 DEFINE(_SIGTSTP, SIGTSTP); 276 DEFINE(_SIGCONT, SIGCONT); 277 DEFINE(_SIGTTIN, SIGTTIN); 278 DEFINE(_SIGTTOU, SIGTTOU); 279 DEFINE(_SIGVTALRM, SIGVTALRM); 280 DEFINE(_SIGPROF, SIGPROF); 281 DEFINE(_SIGXCPU, SIGXCPU); 282 DEFINE(_SIGXFSZ, SIGXFSZ); 283 BLANK(); 284 } 285 286 #ifdef CONFIG_CPU_CAVIUM_OCTEON 287 void output_octeon_cop2_state_defines(void) 288 { 289 COMMENT("Octeon specific octeon_cop2_state offsets."); 290 OFFSET(OCTEON_CP2_CRC_IV, octeon_cop2_state, cop2_crc_iv); 291 OFFSET(OCTEON_CP2_CRC_LENGTH, octeon_cop2_state, cop2_crc_length); 292 OFFSET(OCTEON_CP2_CRC_POLY, octeon_cop2_state, cop2_crc_poly); 293 OFFSET(OCTEON_CP2_LLM_DAT, octeon_cop2_state, cop2_llm_dat); 294 OFFSET(OCTEON_CP2_3DES_IV, octeon_cop2_state, cop2_3des_iv); 295 OFFSET(OCTEON_CP2_3DES_KEY, octeon_cop2_state, cop2_3des_key); 296 OFFSET(OCTEON_CP2_3DES_RESULT, octeon_cop2_state, cop2_3des_result); 297 OFFSET(OCTEON_CP2_AES_INP0, octeon_cop2_state, cop2_aes_inp0); 298 OFFSET(OCTEON_CP2_AES_IV, octeon_cop2_state, cop2_aes_iv); 299 OFFSET(OCTEON_CP2_AES_KEY, octeon_cop2_state, cop2_aes_key); 300 OFFSET(OCTEON_CP2_AES_KEYLEN, octeon_cop2_state, cop2_aes_keylen); 301 OFFSET(OCTEON_CP2_AES_RESULT, octeon_cop2_state, cop2_aes_result); 302 OFFSET(OCTEON_CP2_GFM_MULT, octeon_cop2_state, cop2_gfm_mult); 303 OFFSET(OCTEON_CP2_GFM_POLY, octeon_cop2_state, cop2_gfm_poly); 304 OFFSET(OCTEON_CP2_GFM_RESULT, octeon_cop2_state, cop2_gfm_result); 305 OFFSET(OCTEON_CP2_HSH_DATW, octeon_cop2_state, cop2_hsh_datw); 306 OFFSET(OCTEON_CP2_HSH_IVW, octeon_cop2_state, cop2_hsh_ivw); 307 OFFSET(OCTEON_CP2_SHA3, octeon_cop2_state, cop2_sha3); 308 OFFSET(THREAD_CP2, task_struct, thread.cp2); 309 OFFSET(THREAD_CVMSEG, task_struct, thread.cvmseg.cvmseg); 310 BLANK(); 311 } 312 #endif 313 314 #ifdef CONFIG_HIBERNATION 315 void output_pbe_defines(void) 316 { 317 COMMENT(" Linux struct pbe offsets. "); 318 OFFSET(PBE_ADDRESS, pbe, address); 319 OFFSET(PBE_ORIG_ADDRESS, pbe, orig_address); 320 OFFSET(PBE_NEXT, pbe, next); 321 DEFINE(PBE_SIZE, sizeof(struct pbe)); 322 BLANK(); 323 } 324 #endif 325 326 #ifdef CONFIG_CPU_PM 327 void output_pm_defines(void) 328 { 329 COMMENT(" PM offsets. "); 330 #ifdef CONFIG_EVA 331 OFFSET(SSS_SEGCTL0, mips_static_suspend_state, segctl[0]); 332 OFFSET(SSS_SEGCTL1, mips_static_suspend_state, segctl[1]); 333 OFFSET(SSS_SEGCTL2, mips_static_suspend_state, segctl[2]); 334 #endif 335 OFFSET(SSS_SP, mips_static_suspend_state, sp); 336 BLANK(); 337 } 338 #endif 339 340 #ifdef CONFIG_MIPS_FP_SUPPORT 341 void output_kvm_defines(void) 342 { 343 COMMENT(" KVM/MIPS Specific offsets. "); 344 345 OFFSET(VCPU_FPR0, kvm_vcpu_arch, fpu.fpr[0]); 346 OFFSET(VCPU_FPR1, kvm_vcpu_arch, fpu.fpr[1]); 347 OFFSET(VCPU_FPR2, kvm_vcpu_arch, fpu.fpr[2]); 348 OFFSET(VCPU_FPR3, kvm_vcpu_arch, fpu.fpr[3]); 349 OFFSET(VCPU_FPR4, kvm_vcpu_arch, fpu.fpr[4]); 350 OFFSET(VCPU_FPR5, kvm_vcpu_arch, fpu.fpr[5]); 351 OFFSET(VCPU_FPR6, kvm_vcpu_arch, fpu.fpr[6]); 352 OFFSET(VCPU_FPR7, kvm_vcpu_arch, fpu.fpr[7]); 353 OFFSET(VCPU_FPR8, kvm_vcpu_arch, fpu.fpr[8]); 354 OFFSET(VCPU_FPR9, kvm_vcpu_arch, fpu.fpr[9]); 355 OFFSET(VCPU_FPR10, kvm_vcpu_arch, fpu.fpr[10]); 356 OFFSET(VCPU_FPR11, kvm_vcpu_arch, fpu.fpr[11]); 357 OFFSET(VCPU_FPR12, kvm_vcpu_arch, fpu.fpr[12]); 358 OFFSET(VCPU_FPR13, kvm_vcpu_arch, fpu.fpr[13]); 359 OFFSET(VCPU_FPR14, kvm_vcpu_arch, fpu.fpr[14]); 360 OFFSET(VCPU_FPR15, kvm_vcpu_arch, fpu.fpr[15]); 361 OFFSET(VCPU_FPR16, kvm_vcpu_arch, fpu.fpr[16]); 362 OFFSET(VCPU_FPR17, kvm_vcpu_arch, fpu.fpr[17]); 363 OFFSET(VCPU_FPR18, kvm_vcpu_arch, fpu.fpr[18]); 364 OFFSET(VCPU_FPR19, kvm_vcpu_arch, fpu.fpr[19]); 365 OFFSET(VCPU_FPR20, kvm_vcpu_arch, fpu.fpr[20]); 366 OFFSET(VCPU_FPR21, kvm_vcpu_arch, fpu.fpr[21]); 367 OFFSET(VCPU_FPR22, kvm_vcpu_arch, fpu.fpr[22]); 368 OFFSET(VCPU_FPR23, kvm_vcpu_arch, fpu.fpr[23]); 369 OFFSET(VCPU_FPR24, kvm_vcpu_arch, fpu.fpr[24]); 370 OFFSET(VCPU_FPR25, kvm_vcpu_arch, fpu.fpr[25]); 371 OFFSET(VCPU_FPR26, kvm_vcpu_arch, fpu.fpr[26]); 372 OFFSET(VCPU_FPR27, kvm_vcpu_arch, fpu.fpr[27]); 373 OFFSET(VCPU_FPR28, kvm_vcpu_arch, fpu.fpr[28]); 374 OFFSET(VCPU_FPR29, kvm_vcpu_arch, fpu.fpr[29]); 375 OFFSET(VCPU_FPR30, kvm_vcpu_arch, fpu.fpr[30]); 376 OFFSET(VCPU_FPR31, kvm_vcpu_arch, fpu.fpr[31]); 377 378 OFFSET(VCPU_FCR31, kvm_vcpu_arch, fpu.fcr31); 379 OFFSET(VCPU_MSA_CSR, kvm_vcpu_arch, fpu.msacsr); 380 BLANK(); 381 } 382 #endif 383 384 #ifdef CONFIG_MIPS_CPS 385 void output_cps_defines(void) 386 { 387 COMMENT(" MIPS CPS offsets. "); 388 389 OFFSET(COREBOOTCFG_VPEMASK, core_boot_config, vpe_mask); 390 OFFSET(COREBOOTCFG_VPECONFIG, core_boot_config, vpe_config); 391 DEFINE(COREBOOTCFG_SIZE, sizeof(struct core_boot_config)); 392 393 OFFSET(VPEBOOTCFG_PC, vpe_boot_config, pc); 394 OFFSET(VPEBOOTCFG_SP, vpe_boot_config, sp); 395 OFFSET(VPEBOOTCFG_GP, vpe_boot_config, gp); 396 DEFINE(VPEBOOTCFG_SIZE, sizeof(struct vpe_boot_config)); 397 } 398 #endif 399