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
output_ptreg_defines(void)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
output_task_defines(void)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
output_thread_info_defines(void)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
output_thread_defines(void)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
output_thread_fpu_defines(void)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
output_mm_defines(void)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
output_sc_defines(void)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
output_sc_defines(void)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
output_signal_defined(void)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
output_octeon_cop2_state_defines(void)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
output_pbe_defines(void)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
output_pm_defines(void)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
output_kvm_defines(void)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
output_cps_defines(void)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