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
26void output_ptreg_defines(void);
27void output_ptreg_defines(void)
28{
29 COMMENT("MIPS pt_regs offsets.");
30 OFFSET(PT_R0, pt_regs, regs[0]);
31 OFFSET(PT_R1, pt_regs, regs[1]);
32 OFFSET(PT_R2, pt_regs, regs[2]);
33 OFFSET(PT_R3, pt_regs, regs[3]);
34 OFFSET(PT_R4, pt_regs, regs[4]);
35 OFFSET(PT_R5, pt_regs, regs[5]);
36 OFFSET(PT_R6, pt_regs, regs[6]);
37 OFFSET(PT_R7, pt_regs, regs[7]);
38 OFFSET(PT_R8, pt_regs, regs[8]);
39 OFFSET(PT_R9, pt_regs, regs[9]);
40 OFFSET(PT_R10, pt_regs, regs[10]);
41 OFFSET(PT_R11, pt_regs, regs[11]);
42 OFFSET(PT_R12, pt_regs, regs[12]);
43 OFFSET(PT_R13, pt_regs, regs[13]);
44 OFFSET(PT_R14, pt_regs, regs[14]);
45 OFFSET(PT_R15, pt_regs, regs[15]);
46 OFFSET(PT_R16, pt_regs, regs[16]);
47 OFFSET(PT_R17, pt_regs, regs[17]);
48 OFFSET(PT_R18, pt_regs, regs[18]);
49 OFFSET(PT_R19, pt_regs, regs[19]);
50 OFFSET(PT_R20, pt_regs, regs[20]);
51 OFFSET(PT_R21, pt_regs, regs[21]);
52 OFFSET(PT_R22, pt_regs, regs[22]);
53 OFFSET(PT_R23, pt_regs, regs[23]);
54 OFFSET(PT_R24, pt_regs, regs[24]);
55 OFFSET(PT_R25, pt_regs, regs[25]);
56 OFFSET(PT_R26, pt_regs, regs[26]);
57 OFFSET(PT_R27, pt_regs, regs[27]);
58 OFFSET(PT_R28, pt_regs, regs[28]);
59 OFFSET(PT_R29, pt_regs, regs[29]);
60 OFFSET(PT_R30, pt_regs, regs[30]);
61 OFFSET(PT_R31, pt_regs, regs[31]);
62 OFFSET(PT_LO, pt_regs, lo);
63 OFFSET(PT_HI, pt_regs, hi);
64#ifdef CONFIG_CPU_HAS_SMARTMIPS
65 OFFSET(PT_ACX, pt_regs, acx);
66#endif
67 OFFSET(PT_EPC, pt_regs, cp0_epc);
68 OFFSET(PT_BVADDR, pt_regs, cp0_badvaddr);
69 OFFSET(PT_STATUS, pt_regs, cp0_status);
70 OFFSET(PT_CAUSE, pt_regs, cp0_cause);
71#ifdef CONFIG_CPU_CAVIUM_OCTEON
72 OFFSET(PT_MPL, pt_regs, mpl);
73 OFFSET(PT_MTP, pt_regs, mtp);
74#endif /* CONFIG_CPU_CAVIUM_OCTEON */
75 DEFINE(PT_SIZE, sizeof(struct pt_regs));
76 BLANK();
77}
78
79void output_task_defines(void);
80void output_task_defines(void)
81{
82 COMMENT("MIPS task_struct offsets.");
83 OFFSET(TASK_THREAD_INFO, task_struct, stack);
84 OFFSET(TASK_FLAGS, task_struct, flags);
85 OFFSET(TASK_MM, task_struct, mm);
86 OFFSET(TASK_PID, task_struct, pid);
87#if defined(CONFIG_STACKPROTECTOR)
88 OFFSET(TASK_STACK_CANARY, task_struct, stack_canary);
89#endif
90 DEFINE(TASK_STRUCT_SIZE, sizeof(struct task_struct));
91 BLANK();
92}
93
94void output_thread_info_defines(void);
95void output_thread_info_defines(void)
96{
97 COMMENT("MIPS thread_info offsets.");
98 OFFSET(TI_TASK, thread_info, task);
99 OFFSET(TI_FLAGS, thread_info, flags);
100 OFFSET(TI_TP_VALUE, thread_info, tp_value);
101 OFFSET(TI_CPU, thread_info, cpu);
102 OFFSET(TI_PRE_COUNT, thread_info, preempt_count);
103 OFFSET(TI_REGS, thread_info, regs);
104 DEFINE(_THREAD_SIZE, THREAD_SIZE);
105 DEFINE(_THREAD_MASK, THREAD_MASK);
106 DEFINE(_IRQ_STACK_SIZE, IRQ_STACK_SIZE);
107 DEFINE(_IRQ_STACK_START, IRQ_STACK_START);
108 BLANK();
109}
110
111void output_thread_defines(void);
112void output_thread_defines(void)
113{
114 COMMENT("MIPS specific thread_struct offsets.");
115 OFFSET(THREAD_REG16, task_struct, thread.reg16);
116 OFFSET(THREAD_REG17, task_struct, thread.reg17);
117 OFFSET(THREAD_REG18, task_struct, thread.reg18);
118 OFFSET(THREAD_REG19, task_struct, thread.reg19);
119 OFFSET(THREAD_REG20, task_struct, thread.reg20);
120 OFFSET(THREAD_REG21, task_struct, thread.reg21);
121 OFFSET(THREAD_REG22, task_struct, thread.reg22);
122 OFFSET(THREAD_REG23, task_struct, thread.reg23);
123 OFFSET(THREAD_REG29, task_struct, thread.reg29);
124 OFFSET(THREAD_REG30, task_struct, thread.reg30);
125 OFFSET(THREAD_REG31, task_struct, thread.reg31);
126 OFFSET(THREAD_STATUS, task_struct,
127 thread.cp0_status);
128
129 OFFSET(THREAD_BVADDR, task_struct, \
130 thread.cp0_badvaddr);
131 OFFSET(THREAD_BUADDR, task_struct, \
132 thread.cp0_baduaddr);
133 OFFSET(THREAD_ECODE, task_struct, \
134 thread.error_code);
135 OFFSET(THREAD_TRAPNO, task_struct, thread.trap_nr);
136 BLANK();
137}
138
139#ifdef CONFIG_MIPS_FP_SUPPORT
140void output_thread_fpu_defines(void);
141void output_thread_fpu_defines(void)
142{
143 OFFSET(THREAD_FPU, task_struct, thread.fpu);
144
145 OFFSET(THREAD_FPR0, task_struct, thread.fpu.fpr[0]);
146 OFFSET(THREAD_FPR1, task_struct, thread.fpu.fpr[1]);
147 OFFSET(THREAD_FPR2, task_struct, thread.fpu.fpr[2]);
148 OFFSET(THREAD_FPR3, task_struct, thread.fpu.fpr[3]);
149 OFFSET(THREAD_FPR4, task_struct, thread.fpu.fpr[4]);
150 OFFSET(THREAD_FPR5, task_struct, thread.fpu.fpr[5]);
151 OFFSET(THREAD_FPR6, task_struct, thread.fpu.fpr[6]);
152 OFFSET(THREAD_FPR7, task_struct, thread.fpu.fpr[7]);
153 OFFSET(THREAD_FPR8, task_struct, thread.fpu.fpr[8]);
154 OFFSET(THREAD_FPR9, task_struct, thread.fpu.fpr[9]);
155 OFFSET(THREAD_FPR10, task_struct, thread.fpu.fpr[10]);
156 OFFSET(THREAD_FPR11, task_struct, thread.fpu.fpr[11]);
157 OFFSET(THREAD_FPR12, task_struct, thread.fpu.fpr[12]);
158 OFFSET(THREAD_FPR13, task_struct, thread.fpu.fpr[13]);
159 OFFSET(THREAD_FPR14, task_struct, thread.fpu.fpr[14]);
160 OFFSET(THREAD_FPR15, task_struct, thread.fpu.fpr[15]);
161 OFFSET(THREAD_FPR16, task_struct, thread.fpu.fpr[16]);
162 OFFSET(THREAD_FPR17, task_struct, thread.fpu.fpr[17]);
163 OFFSET(THREAD_FPR18, task_struct, thread.fpu.fpr[18]);
164 OFFSET(THREAD_FPR19, task_struct, thread.fpu.fpr[19]);
165 OFFSET(THREAD_FPR20, task_struct, thread.fpu.fpr[20]);
166 OFFSET(THREAD_FPR21, task_struct, thread.fpu.fpr[21]);
167 OFFSET(THREAD_FPR22, task_struct, thread.fpu.fpr[22]);
168 OFFSET(THREAD_FPR23, task_struct, thread.fpu.fpr[23]);
169 OFFSET(THREAD_FPR24, task_struct, thread.fpu.fpr[24]);
170 OFFSET(THREAD_FPR25, task_struct, thread.fpu.fpr[25]);
171 OFFSET(THREAD_FPR26, task_struct, thread.fpu.fpr[26]);
172 OFFSET(THREAD_FPR27, task_struct, thread.fpu.fpr[27]);
173 OFFSET(THREAD_FPR28, task_struct, thread.fpu.fpr[28]);
174 OFFSET(THREAD_FPR29, task_struct, thread.fpu.fpr[29]);
175 OFFSET(THREAD_FPR30, task_struct, thread.fpu.fpr[30]);
176 OFFSET(THREAD_FPR31, task_struct, thread.fpu.fpr[31]);
177
178 OFFSET(THREAD_FCR31, task_struct, thread.fpu.fcr31);
179 OFFSET(THREAD_MSA_CSR, task_struct, thread.fpu.msacsr);
180 BLANK();
181}
182#endif
183
184void output_mm_defines(void);
185void output_mm_defines(void)
186{
187 COMMENT("Size of struct page");
188 DEFINE(STRUCT_PAGE_SIZE, sizeof(struct page));
189 BLANK();
190 COMMENT("Linux mm_struct offsets.");
191 OFFSET(MM_USERS, mm_struct, mm_users);
192 OFFSET(MM_PGD, mm_struct, pgd);
193 OFFSET(MM_CONTEXT, mm_struct, context);
194 BLANK();
195 DEFINE(_PGD_T_SIZE, sizeof(pgd_t));
196 DEFINE(_PMD_T_SIZE, sizeof(pmd_t));
197 DEFINE(_PTE_T_SIZE, sizeof(pte_t));
198 BLANK();
199 DEFINE(_PGD_T_LOG2, PGD_T_LOG2);
200#ifndef __PAGETABLE_PMD_FOLDED
201 DEFINE(_PMD_T_LOG2, PMD_T_LOG2);
202#endif
203 DEFINE(_PTE_T_LOG2, PTE_T_LOG2);
204 BLANK();
205 BLANK();
206 DEFINE(_PMD_SHIFT, PMD_SHIFT);
207 DEFINE(_PGDIR_SHIFT, PGDIR_SHIFT);
208 BLANK();
209 DEFINE(_PTRS_PER_PGD, PTRS_PER_PGD);
210 DEFINE(_PTRS_PER_PMD, PTRS_PER_PMD);
211 DEFINE(_PTRS_PER_PTE, PTRS_PER_PTE);
212 BLANK();
213 DEFINE(_PAGE_SHIFT, PAGE_SHIFT);
214 DEFINE(_PAGE_SIZE, PAGE_SIZE);
215 BLANK();
216}
217
218#ifdef CONFIG_32BIT
219void output_sc_defines(void);
220void output_sc_defines(void)
221{
222 COMMENT("Linux sigcontext offsets.");
223 OFFSET(SC_REGS, sigcontext, sc_regs);
224 OFFSET(SC_FPREGS, sigcontext, sc_fpregs);
225 OFFSET(SC_ACX, sigcontext, sc_acx);
226 OFFSET(SC_MDHI, sigcontext, sc_mdhi);
227 OFFSET(SC_MDLO, sigcontext, sc_mdlo);
228 OFFSET(SC_PC, sigcontext, sc_pc);
229 OFFSET(SC_FPC_CSR, sigcontext, sc_fpc_csr);
230 OFFSET(SC_FPC_EIR, sigcontext, sc_fpc_eir);
231 OFFSET(SC_HI1, sigcontext, sc_hi1);
232 OFFSET(SC_LO1, sigcontext, sc_lo1);
233 OFFSET(SC_HI2, sigcontext, sc_hi2);
234 OFFSET(SC_LO2, sigcontext, sc_lo2);
235 OFFSET(SC_HI3, sigcontext, sc_hi3);
236 OFFSET(SC_LO3, sigcontext, sc_lo3);
237 BLANK();
238}
239#endif
240
241#ifdef CONFIG_64BIT
242void output_sc_defines(void);
243void output_sc_defines(void)
244{
245 COMMENT("Linux sigcontext offsets.");
246 OFFSET(SC_REGS, sigcontext, sc_regs);
247 OFFSET(SC_FPREGS, sigcontext, sc_fpregs);
248 OFFSET(SC_MDHI, sigcontext, sc_mdhi);
249 OFFSET(SC_MDLO, sigcontext, sc_mdlo);
250 OFFSET(SC_PC, sigcontext, sc_pc);
251 OFFSET(SC_FPC_CSR, sigcontext, sc_fpc_csr);
252 BLANK();
253}
254#endif
255
256void output_signal_defined(void);
257void output_signal_defined(void)
258{
259 COMMENT("Linux signal numbers.");
260 DEFINE(_SIGHUP, SIGHUP);
261 DEFINE(_SIGINT, SIGINT);
262 DEFINE(_SIGQUIT, SIGQUIT);
263 DEFINE(_SIGILL, SIGILL);
264 DEFINE(_SIGTRAP, SIGTRAP);
265 DEFINE(_SIGIOT, SIGIOT);
266 DEFINE(_SIGABRT, SIGABRT);
267 DEFINE(_SIGEMT, SIGEMT);
268 DEFINE(_SIGFPE, SIGFPE);
269 DEFINE(_SIGKILL, SIGKILL);
270 DEFINE(_SIGBUS, SIGBUS);
271 DEFINE(_SIGSEGV, SIGSEGV);
272 DEFINE(_SIGSYS, SIGSYS);
273 DEFINE(_SIGPIPE, SIGPIPE);
274 DEFINE(_SIGALRM, SIGALRM);
275 DEFINE(_SIGTERM, SIGTERM);
276 DEFINE(_SIGUSR1, SIGUSR1);
277 DEFINE(_SIGUSR2, SIGUSR2);
278 DEFINE(_SIGCHLD, SIGCHLD);
279 DEFINE(_SIGPWR, SIGPWR);
280 DEFINE(_SIGWINCH, SIGWINCH);
281 DEFINE(_SIGURG, SIGURG);
282 DEFINE(_SIGIO, SIGIO);
283 DEFINE(_SIGSTOP, SIGSTOP);
284 DEFINE(_SIGTSTP, SIGTSTP);
285 DEFINE(_SIGCONT, SIGCONT);
286 DEFINE(_SIGTTIN, SIGTTIN);
287 DEFINE(_SIGTTOU, SIGTTOU);
288 DEFINE(_SIGVTALRM, SIGVTALRM);
289 DEFINE(_SIGPROF, SIGPROF);
290 DEFINE(_SIGXCPU, SIGXCPU);
291 DEFINE(_SIGXFSZ, SIGXFSZ);
292 BLANK();
293}
294
295#ifdef CONFIG_CPU_CAVIUM_OCTEON
296void output_octeon_cop2_state_defines(void);
297void output_octeon_cop2_state_defines(void)
298{
299 COMMENT("Octeon specific octeon_cop2_state offsets.");
300 OFFSET(OCTEON_CP2_CRC_IV, octeon_cop2_state, cop2_crc_iv);
301 OFFSET(OCTEON_CP2_CRC_LENGTH, octeon_cop2_state, cop2_crc_length);
302 OFFSET(OCTEON_CP2_CRC_POLY, octeon_cop2_state, cop2_crc_poly);
303 OFFSET(OCTEON_CP2_LLM_DAT, octeon_cop2_state, cop2_llm_dat);
304 OFFSET(OCTEON_CP2_3DES_IV, octeon_cop2_state, cop2_3des_iv);
305 OFFSET(OCTEON_CP2_3DES_KEY, octeon_cop2_state, cop2_3des_key);
306 OFFSET(OCTEON_CP2_3DES_RESULT, octeon_cop2_state, cop2_3des_result);
307 OFFSET(OCTEON_CP2_AES_INP0, octeon_cop2_state, cop2_aes_inp0);
308 OFFSET(OCTEON_CP2_AES_IV, octeon_cop2_state, cop2_aes_iv);
309 OFFSET(OCTEON_CP2_AES_KEY, octeon_cop2_state, cop2_aes_key);
310 OFFSET(OCTEON_CP2_AES_KEYLEN, octeon_cop2_state, cop2_aes_keylen);
311 OFFSET(OCTEON_CP2_AES_RESULT, octeon_cop2_state, cop2_aes_result);
312 OFFSET(OCTEON_CP2_GFM_MULT, octeon_cop2_state, cop2_gfm_mult);
313 OFFSET(OCTEON_CP2_GFM_POLY, octeon_cop2_state, cop2_gfm_poly);
314 OFFSET(OCTEON_CP2_GFM_RESULT, octeon_cop2_state, cop2_gfm_result);
315 OFFSET(OCTEON_CP2_HSH_DATW, octeon_cop2_state, cop2_hsh_datw);
316 OFFSET(OCTEON_CP2_HSH_IVW, octeon_cop2_state, cop2_hsh_ivw);
317 OFFSET(OCTEON_CP2_SHA3, octeon_cop2_state, cop2_sha3);
318 OFFSET(THREAD_CP2, task_struct, thread.cp2);
319#if defined(CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE) && \
320 CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE > 0
321 OFFSET(THREAD_CVMSEG, task_struct, thread.cvmseg.cvmseg);
322#endif
323 BLANK();
324}
325#endif
326
327#ifdef CONFIG_HIBERNATION
328void output_pbe_defines(void);
329void output_pbe_defines(void)
330{
331 COMMENT(" Linux struct pbe offsets. ");
332 OFFSET(PBE_ADDRESS, pbe, address);
333 OFFSET(PBE_ORIG_ADDRESS, pbe, orig_address);
334 OFFSET(PBE_NEXT, pbe, next);
335 DEFINE(PBE_SIZE, sizeof(struct pbe));
336 BLANK();
337}
338#endif
339
340#ifdef CONFIG_CPU_PM
341void output_pm_defines(void);
342void output_pm_defines(void)
343{
344 COMMENT(" PM offsets. ");
345#ifdef CONFIG_EVA
346 OFFSET(SSS_SEGCTL0, mips_static_suspend_state, segctl[0]);
347 OFFSET(SSS_SEGCTL1, mips_static_suspend_state, segctl[1]);
348 OFFSET(SSS_SEGCTL2, mips_static_suspend_state, segctl[2]);
349#endif
350 OFFSET(SSS_SP, mips_static_suspend_state, sp);
351 BLANK();
352}
353#endif
354
355#ifdef CONFIG_MIPS_FP_SUPPORT
356void output_kvm_defines(void);
357void output_kvm_defines(void)
358{
359 COMMENT(" KVM/MIPS Specific offsets. ");
360
361 OFFSET(VCPU_FPR0, kvm_vcpu_arch, fpu.fpr[0]);
362 OFFSET(VCPU_FPR1, kvm_vcpu_arch, fpu.fpr[1]);
363 OFFSET(VCPU_FPR2, kvm_vcpu_arch, fpu.fpr[2]);
364 OFFSET(VCPU_FPR3, kvm_vcpu_arch, fpu.fpr[3]);
365 OFFSET(VCPU_FPR4, kvm_vcpu_arch, fpu.fpr[4]);
366 OFFSET(VCPU_FPR5, kvm_vcpu_arch, fpu.fpr[5]);
367 OFFSET(VCPU_FPR6, kvm_vcpu_arch, fpu.fpr[6]);
368 OFFSET(VCPU_FPR7, kvm_vcpu_arch, fpu.fpr[7]);
369 OFFSET(VCPU_FPR8, kvm_vcpu_arch, fpu.fpr[8]);
370 OFFSET(VCPU_FPR9, kvm_vcpu_arch, fpu.fpr[9]);
371 OFFSET(VCPU_FPR10, kvm_vcpu_arch, fpu.fpr[10]);
372 OFFSET(VCPU_FPR11, kvm_vcpu_arch, fpu.fpr[11]);
373 OFFSET(VCPU_FPR12, kvm_vcpu_arch, fpu.fpr[12]);
374 OFFSET(VCPU_FPR13, kvm_vcpu_arch, fpu.fpr[13]);
375 OFFSET(VCPU_FPR14, kvm_vcpu_arch, fpu.fpr[14]);
376 OFFSET(VCPU_FPR15, kvm_vcpu_arch, fpu.fpr[15]);
377 OFFSET(VCPU_FPR16, kvm_vcpu_arch, fpu.fpr[16]);
378 OFFSET(VCPU_FPR17, kvm_vcpu_arch, fpu.fpr[17]);
379 OFFSET(VCPU_FPR18, kvm_vcpu_arch, fpu.fpr[18]);
380 OFFSET(VCPU_FPR19, kvm_vcpu_arch, fpu.fpr[19]);
381 OFFSET(VCPU_FPR20, kvm_vcpu_arch, fpu.fpr[20]);
382 OFFSET(VCPU_FPR21, kvm_vcpu_arch, fpu.fpr[21]);
383 OFFSET(VCPU_FPR22, kvm_vcpu_arch, fpu.fpr[22]);
384 OFFSET(VCPU_FPR23, kvm_vcpu_arch, fpu.fpr[23]);
385 OFFSET(VCPU_FPR24, kvm_vcpu_arch, fpu.fpr[24]);
386 OFFSET(VCPU_FPR25, kvm_vcpu_arch, fpu.fpr[25]);
387 OFFSET(VCPU_FPR26, kvm_vcpu_arch, fpu.fpr[26]);
388 OFFSET(VCPU_FPR27, kvm_vcpu_arch, fpu.fpr[27]);
389 OFFSET(VCPU_FPR28, kvm_vcpu_arch, fpu.fpr[28]);
390 OFFSET(VCPU_FPR29, kvm_vcpu_arch, fpu.fpr[29]);
391 OFFSET(VCPU_FPR30, kvm_vcpu_arch, fpu.fpr[30]);
392 OFFSET(VCPU_FPR31, kvm_vcpu_arch, fpu.fpr[31]);
393
394 OFFSET(VCPU_FCR31, kvm_vcpu_arch, fpu.fcr31);
395 OFFSET(VCPU_MSA_CSR, kvm_vcpu_arch, fpu.msacsr);
396 BLANK();
397}
398#endif
399
400#ifdef CONFIG_MIPS_CPS
401void output_cps_defines(void);
402void output_cps_defines(void)
403{
404 COMMENT(" MIPS CPS offsets. ");
405
406 OFFSET(COREBOOTCFG_VPEMASK, core_boot_config, vpe_mask);
407 OFFSET(COREBOOTCFG_VPECONFIG, core_boot_config, vpe_config);
408 DEFINE(COREBOOTCFG_SIZE, sizeof(struct core_boot_config));
409
410 OFFSET(VPEBOOTCFG_PC, vpe_boot_config, pc);
411 OFFSET(VPEBOOTCFG_SP, vpe_boot_config, sp);
412 OFFSET(VPEBOOTCFG_GP, vpe_boot_config, gp);
413 DEFINE(VPEBOOTCFG_SIZE, sizeof(struct vpe_boot_config));
414}
415#endif
416

source code of linux/arch/mips/kernel/asm-offsets.c