1 // SPDX-License-Identifier: GPL-2.0
3 * asm-offsets.c: Calculate pt_regs and task_struct offsets.
5 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
7 #include <linux/types.h>
8 #include <linux/sched.h>
10 #include <linux/kbuild.h>
11 #include <linux/suspend.h>
12 #include <asm/cpu-info.h>
13 #include <asm/ptrace.h>
14 #include <asm/processor.h>
16 void output_ptreg_defines(void)
18 COMMENT("LoongArch pt_regs offsets.");
19 OFFSET(PT_R0, pt_regs, regs[0]);
20 OFFSET(PT_R1, pt_regs, regs[1]);
21 OFFSET(PT_R2, pt_regs, regs[2]);
22 OFFSET(PT_R3, pt_regs, regs[3]);
23 OFFSET(PT_R4, pt_regs, regs[4]);
24 OFFSET(PT_R5, pt_regs, regs[5]);
25 OFFSET(PT_R6, pt_regs, regs[6]);
26 OFFSET(PT_R7, pt_regs, regs[7]);
27 OFFSET(PT_R8, pt_regs, regs[8]);
28 OFFSET(PT_R9, pt_regs, regs[9]);
29 OFFSET(PT_R10, pt_regs, regs[10]);
30 OFFSET(PT_R11, pt_regs, regs[11]);
31 OFFSET(PT_R12, pt_regs, regs[12]);
32 OFFSET(PT_R13, pt_regs, regs[13]);
33 OFFSET(PT_R14, pt_regs, regs[14]);
34 OFFSET(PT_R15, pt_regs, regs[15]);
35 OFFSET(PT_R16, pt_regs, regs[16]);
36 OFFSET(PT_R17, pt_regs, regs[17]);
37 OFFSET(PT_R18, pt_regs, regs[18]);
38 OFFSET(PT_R19, pt_regs, regs[19]);
39 OFFSET(PT_R20, pt_regs, regs[20]);
40 OFFSET(PT_R21, pt_regs, regs[21]);
41 OFFSET(PT_R22, pt_regs, regs[22]);
42 OFFSET(PT_R23, pt_regs, regs[23]);
43 OFFSET(PT_R24, pt_regs, regs[24]);
44 OFFSET(PT_R25, pt_regs, regs[25]);
45 OFFSET(PT_R26, pt_regs, regs[26]);
46 OFFSET(PT_R27, pt_regs, regs[27]);
47 OFFSET(PT_R28, pt_regs, regs[28]);
48 OFFSET(PT_R29, pt_regs, regs[29]);
49 OFFSET(PT_R30, pt_regs, regs[30]);
50 OFFSET(PT_R31, pt_regs, regs[31]);
51 OFFSET(PT_CRMD, pt_regs, csr_crmd);
52 OFFSET(PT_PRMD, pt_regs, csr_prmd);
53 OFFSET(PT_EUEN, pt_regs, csr_euen);
54 OFFSET(PT_ECFG, pt_regs, csr_ecfg);
55 OFFSET(PT_ESTAT, pt_regs, csr_estat);
56 OFFSET(PT_ERA, pt_regs, csr_era);
57 OFFSET(PT_BVADDR, pt_regs, csr_badvaddr);
58 OFFSET(PT_ORIG_A0, pt_regs, orig_a0);
59 DEFINE(PT_SIZE, sizeof(struct pt_regs));
63 void output_task_defines(void)
65 COMMENT("LoongArch task_struct offsets.");
66 OFFSET(TASK_STATE, task_struct, __state);
67 OFFSET(TASK_THREAD_INFO, task_struct, stack);
68 OFFSET(TASK_FLAGS, task_struct, flags);
69 OFFSET(TASK_MM, task_struct, mm);
70 OFFSET(TASK_PID, task_struct, pid);
71 DEFINE(TASK_STRUCT_SIZE, sizeof(struct task_struct));
75 void output_thread_info_defines(void)
77 COMMENT("LoongArch thread_info offsets.");
78 OFFSET(TI_TASK, thread_info, task);
79 OFFSET(TI_FLAGS, thread_info, flags);
80 OFFSET(TI_TP_VALUE, thread_info, tp_value);
81 OFFSET(TI_CPU, thread_info, cpu);
82 OFFSET(TI_PRE_COUNT, thread_info, preempt_count);
83 OFFSET(TI_REGS, thread_info, regs);
84 DEFINE(_THREAD_SIZE, THREAD_SIZE);
85 DEFINE(_THREAD_MASK, THREAD_MASK);
86 DEFINE(_IRQ_STACK_SIZE, IRQ_STACK_SIZE);
87 DEFINE(_IRQ_STACK_START, IRQ_STACK_START);
91 void output_thread_defines(void)
93 COMMENT("LoongArch specific thread_struct offsets.");
94 OFFSET(THREAD_REG01, task_struct, thread.reg01);
95 OFFSET(THREAD_REG03, task_struct, thread.reg03);
96 OFFSET(THREAD_REG22, task_struct, thread.reg22);
97 OFFSET(THREAD_REG23, task_struct, thread.reg23);
98 OFFSET(THREAD_REG24, task_struct, thread.reg24);
99 OFFSET(THREAD_REG25, task_struct, thread.reg25);
100 OFFSET(THREAD_REG26, task_struct, thread.reg26);
101 OFFSET(THREAD_REG27, task_struct, thread.reg27);
102 OFFSET(THREAD_REG28, task_struct, thread.reg28);
103 OFFSET(THREAD_REG29, task_struct, thread.reg29);
104 OFFSET(THREAD_REG30, task_struct, thread.reg30);
105 OFFSET(THREAD_REG31, task_struct, thread.reg31);
106 OFFSET(THREAD_CSRCRMD, task_struct,
108 OFFSET(THREAD_CSRPRMD, task_struct,
110 OFFSET(THREAD_CSREUEN, task_struct,
112 OFFSET(THREAD_CSRECFG, task_struct,
115 OFFSET(THREAD_SCR0, task_struct, thread.scr0);
116 OFFSET(THREAD_SCR1, task_struct, thread.scr1);
117 OFFSET(THREAD_SCR2, task_struct, thread.scr2);
118 OFFSET(THREAD_SCR3, task_struct, thread.scr3);
120 OFFSET(THREAD_EFLAGS, task_struct, thread.eflags);
122 OFFSET(THREAD_FPU, task_struct, thread.fpu);
124 OFFSET(THREAD_BVADDR, task_struct, \
125 thread.csr_badvaddr);
126 OFFSET(THREAD_ECODE, task_struct, \
128 OFFSET(THREAD_TRAPNO, task_struct, thread.trap_nr);
132 void output_thread_fpu_defines(void)
134 OFFSET(THREAD_FPR0, loongarch_fpu, fpr[0]);
135 OFFSET(THREAD_FPR1, loongarch_fpu, fpr[1]);
136 OFFSET(THREAD_FPR2, loongarch_fpu, fpr[2]);
137 OFFSET(THREAD_FPR3, loongarch_fpu, fpr[3]);
138 OFFSET(THREAD_FPR4, loongarch_fpu, fpr[4]);
139 OFFSET(THREAD_FPR5, loongarch_fpu, fpr[5]);
140 OFFSET(THREAD_FPR6, loongarch_fpu, fpr[6]);
141 OFFSET(THREAD_FPR7, loongarch_fpu, fpr[7]);
142 OFFSET(THREAD_FPR8, loongarch_fpu, fpr[8]);
143 OFFSET(THREAD_FPR9, loongarch_fpu, fpr[9]);
144 OFFSET(THREAD_FPR10, loongarch_fpu, fpr[10]);
145 OFFSET(THREAD_FPR11, loongarch_fpu, fpr[11]);
146 OFFSET(THREAD_FPR12, loongarch_fpu, fpr[12]);
147 OFFSET(THREAD_FPR13, loongarch_fpu, fpr[13]);
148 OFFSET(THREAD_FPR14, loongarch_fpu, fpr[14]);
149 OFFSET(THREAD_FPR15, loongarch_fpu, fpr[15]);
150 OFFSET(THREAD_FPR16, loongarch_fpu, fpr[16]);
151 OFFSET(THREAD_FPR17, loongarch_fpu, fpr[17]);
152 OFFSET(THREAD_FPR18, loongarch_fpu, fpr[18]);
153 OFFSET(THREAD_FPR19, loongarch_fpu, fpr[19]);
154 OFFSET(THREAD_FPR20, loongarch_fpu, fpr[20]);
155 OFFSET(THREAD_FPR21, loongarch_fpu, fpr[21]);
156 OFFSET(THREAD_FPR22, loongarch_fpu, fpr[22]);
157 OFFSET(THREAD_FPR23, loongarch_fpu, fpr[23]);
158 OFFSET(THREAD_FPR24, loongarch_fpu, fpr[24]);
159 OFFSET(THREAD_FPR25, loongarch_fpu, fpr[25]);
160 OFFSET(THREAD_FPR26, loongarch_fpu, fpr[26]);
161 OFFSET(THREAD_FPR27, loongarch_fpu, fpr[27]);
162 OFFSET(THREAD_FPR28, loongarch_fpu, fpr[28]);
163 OFFSET(THREAD_FPR29, loongarch_fpu, fpr[29]);
164 OFFSET(THREAD_FPR30, loongarch_fpu, fpr[30]);
165 OFFSET(THREAD_FPR31, loongarch_fpu, fpr[31]);
167 OFFSET(THREAD_FCSR, loongarch_fpu, fcsr);
168 OFFSET(THREAD_FCC, loongarch_fpu, fcc);
169 OFFSET(THREAD_VCSR, loongarch_fpu, vcsr);
173 void output_mm_defines(void)
175 COMMENT("Size of struct page");
176 DEFINE(STRUCT_PAGE_SIZE, sizeof(struct page));
178 COMMENT("Linux mm_struct offsets.");
179 OFFSET(MM_USERS, mm_struct, mm_users);
180 OFFSET(MM_PGD, mm_struct, pgd);
181 OFFSET(MM_CONTEXT, mm_struct, context);
183 DEFINE(_PGD_T_SIZE, sizeof(pgd_t));
184 DEFINE(_PMD_T_SIZE, sizeof(pmd_t));
185 DEFINE(_PTE_T_SIZE, sizeof(pte_t));
187 DEFINE(_PGD_T_LOG2, PGD_T_LOG2);
188 #ifndef __PAGETABLE_PMD_FOLDED
189 DEFINE(_PMD_T_LOG2, PMD_T_LOG2);
191 DEFINE(_PTE_T_LOG2, PTE_T_LOG2);
193 DEFINE(_PGD_ORDER, PGD_ORDER);
194 #ifndef __PAGETABLE_PMD_FOLDED
195 DEFINE(_PMD_ORDER, PMD_ORDER);
197 DEFINE(_PTE_ORDER, PTE_ORDER);
199 DEFINE(_PMD_SHIFT, PMD_SHIFT);
200 DEFINE(_PGDIR_SHIFT, PGDIR_SHIFT);
202 DEFINE(_PTRS_PER_PGD, PTRS_PER_PGD);
203 DEFINE(_PTRS_PER_PMD, PTRS_PER_PMD);
204 DEFINE(_PTRS_PER_PTE, PTRS_PER_PTE);
206 DEFINE(_PAGE_SHIFT, PAGE_SHIFT);
207 DEFINE(_PAGE_SIZE, PAGE_SIZE);
211 void output_sc_defines(void)
213 COMMENT("Linux sigcontext offsets.");
214 OFFSET(SC_REGS, sigcontext, sc_regs);
215 OFFSET(SC_PC, sigcontext, sc_pc);
219 void output_signal_defines(void)
221 COMMENT("Linux signal numbers.");
222 DEFINE(_SIGHUP, SIGHUP);
223 DEFINE(_SIGINT, SIGINT);
224 DEFINE(_SIGQUIT, SIGQUIT);
225 DEFINE(_SIGILL, SIGILL);
226 DEFINE(_SIGTRAP, SIGTRAP);
227 DEFINE(_SIGIOT, SIGIOT);
228 DEFINE(_SIGABRT, SIGABRT);
229 DEFINE(_SIGFPE, SIGFPE);
230 DEFINE(_SIGKILL, SIGKILL);
231 DEFINE(_SIGBUS, SIGBUS);
232 DEFINE(_SIGSEGV, SIGSEGV);
233 DEFINE(_SIGSYS, SIGSYS);
234 DEFINE(_SIGPIPE, SIGPIPE);
235 DEFINE(_SIGALRM, SIGALRM);
236 DEFINE(_SIGTERM, SIGTERM);
237 DEFINE(_SIGUSR1, SIGUSR1);
238 DEFINE(_SIGUSR2, SIGUSR2);
239 DEFINE(_SIGCHLD, SIGCHLD);
240 DEFINE(_SIGPWR, SIGPWR);
241 DEFINE(_SIGWINCH, SIGWINCH);
242 DEFINE(_SIGURG, SIGURG);
243 DEFINE(_SIGIO, SIGIO);
244 DEFINE(_SIGSTOP, SIGSTOP);
245 DEFINE(_SIGTSTP, SIGTSTP);
246 DEFINE(_SIGCONT, SIGCONT);
247 DEFINE(_SIGTTIN, SIGTTIN);
248 DEFINE(_SIGTTOU, SIGTTOU);
249 DEFINE(_SIGVTALRM, SIGVTALRM);
250 DEFINE(_SIGPROF, SIGPROF);
251 DEFINE(_SIGXCPU, SIGXCPU);
252 DEFINE(_SIGXFSZ, SIGXFSZ);
257 void output_smpboot_defines(void)
259 COMMENT("Linux smp cpu boot offsets.");
260 OFFSET(CPU_BOOT_STACK, secondary_data, stack);
261 OFFSET(CPU_BOOT_TINFO, secondary_data, thread_info);