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-rw-r--r--arch/powerpc/kernel/asm-offsets.c273
1 files changed, 273 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
new file mode 100644
index 000000000000..330cd783206f
--- /dev/null
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -0,0 +1,273 @@
1/*
2 * This program is used to generate definitions needed by
3 * assembly language modules.
4 *
5 * We use the technique used in the OSF Mach kernel code:
6 * generate asm statements containing #defines,
7 * compile this file to assembler, and then extract the
8 * #defines from the assembly-language output.
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version
13 * 2 of the License, or (at your option) any later version.
14 */
15
16#include <linux/config.h>
17#include <linux/signal.h>
18#include <linux/sched.h>
19#include <linux/kernel.h>
20#include <linux/errno.h>
21#include <linux/string.h>
22#include <linux/types.h>
23#include <linux/mman.h>
24#include <linux/mm.h>
25#ifdef CONFIG_PPC64
26#include <linux/time.h>
27#include <linux/hardirq.h>
28#else
29#include <linux/ptrace.h>
30#include <linux/suspend.h>
31#endif
32
33#include <asm/io.h>
34#include <asm/page.h>
35#include <asm/pgtable.h>
36#include <asm/processor.h>
37#include <asm/cputable.h>
38#include <asm/thread_info.h>
39#include <asm/rtas.h>
40#ifdef CONFIG_PPC64
41#include <asm/paca.h>
42#include <asm/lppaca.h>
43#include <asm/iSeries/HvLpEvent.h>
44#include <asm/cache.h>
45#include <asm/systemcfg.h>
46#include <asm/compat.h>
47#endif
48
49#define DEFINE(sym, val) \
50 asm volatile("\n->" #sym " %0 " #val : : "i" (val))
51
52#define BLANK() asm volatile("\n->" : : )
53
54int main(void)
55{
56 DEFINE(THREAD, offsetof(struct task_struct, thread));
57 DEFINE(MM, offsetof(struct task_struct, mm));
58#ifdef CONFIG_PPC64
59 DEFINE(AUDITCONTEXT, offsetof(struct task_struct, audit_context));
60#else
61 DEFINE(THREAD_INFO, offsetof(struct task_struct, thread_info));
62 DEFINE(PTRACE, offsetof(struct task_struct, ptrace));
63#endif /* CONFIG_PPC64 */
64
65 DEFINE(KSP, offsetof(struct thread_struct, ksp));
66 DEFINE(PT_REGS, offsetof(struct thread_struct, regs));
67 DEFINE(THREAD_FPEXC_MODE, offsetof(struct thread_struct, fpexc_mode));
68 DEFINE(THREAD_FPR0, offsetof(struct thread_struct, fpr[0]));
69 DEFINE(THREAD_FPSCR, offsetof(struct thread_struct, fpscr));
70#ifdef CONFIG_ALTIVEC
71 DEFINE(THREAD_VR0, offsetof(struct thread_struct, vr[0]));
72 DEFINE(THREAD_VRSAVE, offsetof(struct thread_struct, vrsave));
73 DEFINE(THREAD_VSCR, offsetof(struct thread_struct, vscr));
74 DEFINE(THREAD_USED_VR, offsetof(struct thread_struct, used_vr));
75#endif /* CONFIG_ALTIVEC */
76#ifdef CONFIG_PPC64
77 DEFINE(KSP_VSID, offsetof(struct thread_struct, ksp_vsid));
78#else /* CONFIG_PPC64 */
79 DEFINE(PGDIR, offsetof(struct thread_struct, pgdir));
80 DEFINE(LAST_SYSCALL, offsetof(struct thread_struct, last_syscall));
81#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
82 DEFINE(THREAD_DBCR0, offsetof(struct thread_struct, dbcr0));
83 DEFINE(PT_PTRACED, PT_PTRACED);
84#endif
85#ifdef CONFIG_SPE
86 DEFINE(THREAD_EVR0, offsetof(struct thread_struct, evr[0]));
87 DEFINE(THREAD_ACC, offsetof(struct thread_struct, acc));
88 DEFINE(THREAD_SPEFSCR, offsetof(struct thread_struct, spefscr));
89 DEFINE(THREAD_USED_SPE, offsetof(struct thread_struct, used_spe));
90#endif /* CONFIG_SPE */
91#endif /* CONFIG_PPC64 */
92
93 DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
94 DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count));
95 DEFINE(TI_SC_NOERR, offsetof(struct thread_info, syscall_noerror));
96#ifdef CONFIG_PPC32
97 DEFINE(TI_TASK, offsetof(struct thread_info, task));
98 DEFINE(TI_EXECDOMAIN, offsetof(struct thread_info, exec_domain));
99 DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
100#endif /* CONFIG_PPC32 */
101
102#ifdef CONFIG_PPC64
103 DEFINE(DCACHEL1LINESIZE, offsetof(struct ppc64_caches, dline_size));
104 DEFINE(DCACHEL1LOGLINESIZE, offsetof(struct ppc64_caches, log_dline_size));
105 DEFINE(DCACHEL1LINESPERPAGE, offsetof(struct ppc64_caches, dlines_per_page));
106 DEFINE(ICACHEL1LINESIZE, offsetof(struct ppc64_caches, iline_size));
107 DEFINE(ICACHEL1LOGLINESIZE, offsetof(struct ppc64_caches, log_iline_size));
108 DEFINE(ICACHEL1LINESPERPAGE, offsetof(struct ppc64_caches, ilines_per_page));
109 DEFINE(PLATFORM, offsetof(struct systemcfg, platform));
110 DEFINE(PLATFORM_LPAR, PLATFORM_LPAR);
111
112 /* paca */
113 DEFINE(PACA_SIZE, sizeof(struct paca_struct));
114 DEFINE(PACAPACAINDEX, offsetof(struct paca_struct, paca_index));
115 DEFINE(PACAPROCSTART, offsetof(struct paca_struct, cpu_start));
116 DEFINE(PACAKSAVE, offsetof(struct paca_struct, kstack));
117 DEFINE(PACACURRENT, offsetof(struct paca_struct, __current));
118 DEFINE(PACASAVEDMSR, offsetof(struct paca_struct, saved_msr));
119 DEFINE(PACASTABREAL, offsetof(struct paca_struct, stab_real));
120 DEFINE(PACASTABVIRT, offsetof(struct paca_struct, stab_addr));
121 DEFINE(PACASTABRR, offsetof(struct paca_struct, stab_rr));
122 DEFINE(PACAR1, offsetof(struct paca_struct, saved_r1));
123 DEFINE(PACATOC, offsetof(struct paca_struct, kernel_toc));
124 DEFINE(PACAPROCENABLED, offsetof(struct paca_struct, proc_enabled));
125 DEFINE(PACASLBCACHE, offsetof(struct paca_struct, slb_cache));
126 DEFINE(PACASLBCACHEPTR, offsetof(struct paca_struct, slb_cache_ptr));
127 DEFINE(PACACONTEXTID, offsetof(struct paca_struct, context.id));
128#ifdef CONFIG_HUGETLB_PAGE
129 DEFINE(PACALOWHTLBAREAS, offsetof(struct paca_struct, context.low_htlb_areas));
130 DEFINE(PACAHIGHHTLBAREAS, offsetof(struct paca_struct, context.high_htlb_areas));
131#endif /* CONFIG_HUGETLB_PAGE */
132 DEFINE(PACADEFAULTDECR, offsetof(struct paca_struct, default_decr));
133 DEFINE(PACA_EXGEN, offsetof(struct paca_struct, exgen));
134 DEFINE(PACA_EXMC, offsetof(struct paca_struct, exmc));
135 DEFINE(PACA_EXSLB, offsetof(struct paca_struct, exslb));
136 DEFINE(PACA_EXDSI, offsetof(struct paca_struct, exdsi));
137 DEFINE(PACAEMERGSP, offsetof(struct paca_struct, emergency_sp));
138 DEFINE(PACALPPACA, offsetof(struct paca_struct, lppaca));
139 DEFINE(PACAHWCPUID, offsetof(struct paca_struct, hw_cpu_id));
140
141 DEFINE(LPPACASRR0, offsetof(struct lppaca, saved_srr0));
142 DEFINE(LPPACASRR1, offsetof(struct lppaca, saved_srr1));
143 DEFINE(LPPACAANYINT, offsetof(struct lppaca, int_dword.any_int));
144 DEFINE(LPPACADECRINT, offsetof(struct lppaca, int_dword.fields.decr_int));
145#endif /* CONFIG_PPC64 */
146
147 /* RTAS */
148 DEFINE(RTASBASE, offsetof(struct rtas_t, base));
149 DEFINE(RTASENTRY, offsetof(struct rtas_t, entry));
150
151 /* Interrupt register frame */
152 DEFINE(STACK_FRAME_OVERHEAD, STACK_FRAME_OVERHEAD);
153#ifndef CONFIG_PPC64
154 DEFINE(INT_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs));
155#else /* CONFIG_PPC64 */
156 DEFINE(SWITCH_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs));
157 /* 288 = # of volatile regs, int & fp, for leaf routines */
158 /* which do not stack a frame. See the PPC64 ABI. */
159 DEFINE(INT_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs) + 288);
160 /* Create extra stack space for SRR0 and SRR1 when calling prom/rtas. */
161 DEFINE(PROM_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs) + 16);
162 DEFINE(RTAS_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs) + 16);
163#endif /* CONFIG_PPC64 */
164 DEFINE(GPR0, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[0]));
165 DEFINE(GPR1, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[1]));
166 DEFINE(GPR2, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[2]));
167 DEFINE(GPR3, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[3]));
168 DEFINE(GPR4, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[4]));
169 DEFINE(GPR5, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[5]));
170 DEFINE(GPR6, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[6]));
171 DEFINE(GPR7, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[7]));
172 DEFINE(GPR8, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[8]));
173 DEFINE(GPR9, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[9]));
174 DEFINE(GPR10, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[10]));
175 DEFINE(GPR11, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[11]));
176 DEFINE(GPR12, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[12]));
177 DEFINE(GPR13, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[13]));
178#ifndef CONFIG_PPC64
179 DEFINE(GPR14, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[14]));
180 DEFINE(GPR15, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[15]));
181 DEFINE(GPR16, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[16]));
182 DEFINE(GPR17, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[17]));
183 DEFINE(GPR18, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[18]));
184 DEFINE(GPR19, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[19]));
185 DEFINE(GPR20, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[20]));
186 DEFINE(GPR21, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[21]));
187 DEFINE(GPR22, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[22]));
188 DEFINE(GPR23, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[23]));
189 DEFINE(GPR24, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[24]));
190 DEFINE(GPR25, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[25]));
191 DEFINE(GPR26, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[26]));
192 DEFINE(GPR27, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[27]));
193 DEFINE(GPR28, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[28]));
194 DEFINE(GPR29, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[29]));
195 DEFINE(GPR30, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[30]));
196 DEFINE(GPR31, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[31]));
197#endif /* CONFIG_PPC64 */
198 /*
199 * Note: these symbols include _ because they overlap with special
200 * register names
201 */
202 DEFINE(_NIP, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, nip));
203 DEFINE(_MSR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, msr));
204 DEFINE(_CTR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, ctr));
205 DEFINE(_LINK, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, link));
206 DEFINE(_CCR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, ccr));
207 DEFINE(_XER, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, xer));
208 DEFINE(_DAR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dar));
209 DEFINE(_DSISR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dsisr));
210 DEFINE(ORIG_GPR3, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, orig_gpr3));
211 DEFINE(RESULT, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, result));
212 DEFINE(_TRAP, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, trap));
213#ifndef CONFIG_PPC64
214 DEFINE(_MQ, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, mq));
215 /*
216 * The PowerPC 400-class & Book-E processors have neither the DAR
217 * nor the DSISR SPRs. Hence, we overload them to hold the similar
218 * DEAR and ESR SPRs for such processors. For critical interrupts
219 * we use them to hold SRR0 and SRR1.
220 */
221 DEFINE(_DEAR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dar));
222 DEFINE(_ESR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dsisr));
223#else /* CONFIG_PPC64 */
224 DEFINE(SOFTE, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, softe));
225
226 /* These _only_ to be used with {PROM,RTAS}_FRAME_SIZE!!! */
227 DEFINE(_SRR0, STACK_FRAME_OVERHEAD+sizeof(struct pt_regs));
228 DEFINE(_SRR1, STACK_FRAME_OVERHEAD+sizeof(struct pt_regs)+8);
229#endif /* CONFIG_PPC64 */
230
231 DEFINE(CLONE_VM, CLONE_VM);
232 DEFINE(CLONE_UNTRACED, CLONE_UNTRACED);
233
234#ifndef CONFIG_PPC64
235 DEFINE(MM_PGD, offsetof(struct mm_struct, pgd));
236#endif /* ! CONFIG_PPC64 */
237
238 /* About the CPU features table */
239 DEFINE(CPU_SPEC_ENTRY_SIZE, sizeof(struct cpu_spec));
240 DEFINE(CPU_SPEC_PVR_MASK, offsetof(struct cpu_spec, pvr_mask));
241 DEFINE(CPU_SPEC_PVR_VALUE, offsetof(struct cpu_spec, pvr_value));
242 DEFINE(CPU_SPEC_FEATURES, offsetof(struct cpu_spec, cpu_features));
243 DEFINE(CPU_SPEC_SETUP, offsetof(struct cpu_spec, cpu_setup));
244
245#ifndef CONFIG_PPC64
246 DEFINE(pbe_address, offsetof(struct pbe, address));
247 DEFINE(pbe_orig_address, offsetof(struct pbe, orig_address));
248 DEFINE(pbe_next, offsetof(struct pbe, next));
249
250 DEFINE(TASK_SIZE, TASK_SIZE);
251 DEFINE(NUM_USER_SEGMENTS, TASK_SIZE>>28);
252#else /* CONFIG_PPC64 */
253 /* systemcfg offsets for use by vdso */
254 DEFINE(CFG_TB_ORIG_STAMP, offsetof(struct systemcfg, tb_orig_stamp));
255 DEFINE(CFG_TB_TICKS_PER_SEC, offsetof(struct systemcfg, tb_ticks_per_sec));
256 DEFINE(CFG_TB_TO_XS, offsetof(struct systemcfg, tb_to_xs));
257 DEFINE(CFG_STAMP_XSEC, offsetof(struct systemcfg, stamp_xsec));
258 DEFINE(CFG_TB_UPDATE_COUNT, offsetof(struct systemcfg, tb_update_count));
259 DEFINE(CFG_TZ_MINUTEWEST, offsetof(struct systemcfg, tz_minuteswest));
260 DEFINE(CFG_TZ_DSTTIME, offsetof(struct systemcfg, tz_dsttime));
261 DEFINE(CFG_SYSCALL_MAP32, offsetof(struct systemcfg, syscall_map_32));
262 DEFINE(CFG_SYSCALL_MAP64, offsetof(struct systemcfg, syscall_map_64));
263
264 /* timeval/timezone offsets for use by vdso */
265 DEFINE(TVAL64_TV_SEC, offsetof(struct timeval, tv_sec));
266 DEFINE(TVAL64_TV_USEC, offsetof(struct timeval, tv_usec));
267 DEFINE(TVAL32_TV_SEC, offsetof(struct compat_timeval, tv_sec));
268 DEFINE(TVAL32_TV_USEC, offsetof(struct compat_timeval, tv_usec));
269 DEFINE(TZONE_TZ_MINWEST, offsetof(struct timezone, tz_minuteswest));
270 DEFINE(TZONE_TZ_DSTTIME, offsetof(struct timezone, tz_dsttime));
271#endif /* CONFIG_PPC64 */
272 return 0;
273}
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-18 23:03:53 -0500