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1da177e4 LT |
1 | /* |
2 | * include/asm-s390/lowcore.h | |
3 | * | |
4 | * S390 version | |
5 | * Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation | |
6 | * Author(s): Hartmut Penner (hp@de.ibm.com), | |
7 | * Martin Schwidefsky (schwidefsky@de.ibm.com), | |
8 | * Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com) | |
9 | */ | |
10 | ||
11 | #ifndef _ASM_S390_LOWCORE_H | |
12 | #define _ASM_S390_LOWCORE_H | |
13 | ||
14 | #ifndef __s390x__ | |
15 | #define __LC_EXT_OLD_PSW 0x018 | |
16 | #define __LC_SVC_OLD_PSW 0x020 | |
17 | #define __LC_PGM_OLD_PSW 0x028 | |
18 | #define __LC_MCK_OLD_PSW 0x030 | |
19 | #define __LC_IO_OLD_PSW 0x038 | |
20 | #define __LC_EXT_NEW_PSW 0x058 | |
21 | #define __LC_SVC_NEW_PSW 0x060 | |
22 | #define __LC_PGM_NEW_PSW 0x068 | |
23 | #define __LC_MCK_NEW_PSW 0x070 | |
24 | #define __LC_IO_NEW_PSW 0x078 | |
25 | #else /* !__s390x__ */ | |
26 | #define __LC_EXT_OLD_PSW 0x0130 | |
27 | #define __LC_SVC_OLD_PSW 0x0140 | |
28 | #define __LC_PGM_OLD_PSW 0x0150 | |
29 | #define __LC_MCK_OLD_PSW 0x0160 | |
30 | #define __LC_IO_OLD_PSW 0x0170 | |
31 | #define __LC_EXT_NEW_PSW 0x01b0 | |
32 | #define __LC_SVC_NEW_PSW 0x01c0 | |
33 | #define __LC_PGM_NEW_PSW 0x01d0 | |
34 | #define __LC_MCK_NEW_PSW 0x01e0 | |
35 | #define __LC_IO_NEW_PSW 0x01f0 | |
36 | #endif /* !__s390x__ */ | |
37 | ||
e87bfe51 | 38 | #define __LC_IPL_PARMBLOCK_PTR 0x014 |
1da177e4 LT |
39 | #define __LC_EXT_PARAMS 0x080 |
40 | #define __LC_CPU_ADDRESS 0x084 | |
41 | #define __LC_EXT_INT_CODE 0x086 | |
42 | ||
43 | #define __LC_SVC_ILC 0x088 | |
44 | #define __LC_SVC_INT_CODE 0x08A | |
45 | #define __LC_PGM_ILC 0x08C | |
46 | #define __LC_PGM_INT_CODE 0x08E | |
47 | ||
48 | #define __LC_PER_ATMID 0x096 | |
49 | #define __LC_PER_ADDRESS 0x098 | |
50 | #define __LC_PER_ACCESS_ID 0x0A1 | |
ff6b8ea6 | 51 | #define __LC_AR_MODE_ID 0x0A3 |
1da177e4 LT |
52 | |
53 | #define __LC_SUBCHANNEL_ID 0x0B8 | |
54 | #define __LC_SUBCHANNEL_NR 0x0BA | |
55 | #define __LC_IO_INT_PARM 0x0BC | |
56 | #define __LC_IO_INT_WORD 0x0C0 | |
57 | #define __LC_MCCK_CODE 0x0E8 | |
58 | ||
59 | #define __LC_RETURN_PSW 0x200 | |
60 | ||
61 | #define __LC_SAVE_AREA 0xC00 | |
62 | ||
63 | #ifndef __s390x__ | |
64 | #define __LC_IRB 0x208 | |
65 | #define __LC_SYNC_ENTER_TIMER 0x248 | |
66 | #define __LC_ASYNC_ENTER_TIMER 0x250 | |
67 | #define __LC_EXIT_TIMER 0x258 | |
68 | #define __LC_LAST_UPDATE_TIMER 0x260 | |
69 | #define __LC_USER_TIMER 0x268 | |
70 | #define __LC_SYSTEM_TIMER 0x270 | |
71 | #define __LC_LAST_UPDATE_CLOCK 0x278 | |
72 | #define __LC_STEAL_CLOCK 0x280 | |
ae6aa2ea | 73 | #define __LC_RETURN_MCCK_PSW 0x288 |
1da177e4 LT |
74 | #define __LC_KERNEL_STACK 0xC40 |
75 | #define __LC_THREAD_INFO 0xC44 | |
76 | #define __LC_ASYNC_STACK 0xC48 | |
77 | #define __LC_KERNEL_ASCE 0xC4C | |
78 | #define __LC_USER_ASCE 0xC50 | |
79 | #define __LC_PANIC_STACK 0xC54 | |
80 | #define __LC_CPUID 0xC60 | |
81 | #define __LC_CPUADDR 0xC68 | |
82 | #define __LC_IPLDEV 0xC7C | |
83 | #define __LC_JIFFY_TIMER 0xC80 | |
84 | #define __LC_CURRENT 0xC90 | |
85 | #define __LC_INT_CLOCK 0xC98 | |
86 | #else /* __s390x__ */ | |
87 | #define __LC_IRB 0x210 | |
88 | #define __LC_SYNC_ENTER_TIMER 0x250 | |
89 | #define __LC_ASYNC_ENTER_TIMER 0x258 | |
90 | #define __LC_EXIT_TIMER 0x260 | |
91 | #define __LC_LAST_UPDATE_TIMER 0x268 | |
92 | #define __LC_USER_TIMER 0x270 | |
93 | #define __LC_SYSTEM_TIMER 0x278 | |
94 | #define __LC_LAST_UPDATE_CLOCK 0x280 | |
95 | #define __LC_STEAL_CLOCK 0x288 | |
ae6aa2ea | 96 | #define __LC_RETURN_MCCK_PSW 0x290 |
1da177e4 LT |
97 | #define __LC_KERNEL_STACK 0xD40 |
98 | #define __LC_THREAD_INFO 0xD48 | |
99 | #define __LC_ASYNC_STACK 0xD50 | |
100 | #define __LC_KERNEL_ASCE 0xD58 | |
101 | #define __LC_USER_ASCE 0xD60 | |
102 | #define __LC_PANIC_STACK 0xD68 | |
4ae9538d PO |
103 | #define __LC_CPUID 0xD80 |
104 | #define __LC_CPUADDR 0xD88 | |
1da177e4 LT |
105 | #define __LC_IPLDEV 0xDB8 |
106 | #define __LC_JIFFY_TIMER 0xDC0 | |
107 | #define __LC_CURRENT 0xDD8 | |
108 | #define __LC_INT_CLOCK 0xDE8 | |
109 | #endif /* __s390x__ */ | |
110 | ||
1da177e4 | 111 | |
ff6b8ea6 | 112 | #define __LC_PANIC_MAGIC 0xE00 |
1da177e4 LT |
113 | #ifndef __s390x__ |
114 | #define __LC_PFAULT_INTPARM 0x080 | |
77fa2245 | 115 | #define __LC_CPU_TIMER_SAVE_AREA 0x0D8 |
ff6b8ea6 MH |
116 | #define __LC_CLOCK_COMP_SAVE_AREA 0x0E0 |
117 | #define __LC_PSW_SAVE_AREA 0x100 | |
118 | #define __LC_PREFIX_SAVE_AREA 0x108 | |
1da177e4 | 119 | #define __LC_AREGS_SAVE_AREA 0x120 |
ff6b8ea6 | 120 | #define __LC_FPREGS_SAVE_AREA 0x160 |
77fa2245 | 121 | #define __LC_GPREGS_SAVE_AREA 0x180 |
1da177e4 LT |
122 | #define __LC_CREGS_SAVE_AREA 0x1C0 |
123 | #else /* __s390x__ */ | |
124 | #define __LC_PFAULT_INTPARM 0x11B8 | |
ff6b8ea6 | 125 | #define __LC_FPREGS_SAVE_AREA 0x1200 |
77fa2245 | 126 | #define __LC_GPREGS_SAVE_AREA 0x1280 |
ff6b8ea6 MH |
127 | #define __LC_PSW_SAVE_AREA 0x1300 |
128 | #define __LC_PREFIX_SAVE_AREA 0x1318 | |
129 | #define __LC_FP_CREG_SAVE_AREA 0x131C | |
130 | #define __LC_TODREG_SAVE_AREA 0x1324 | |
77fa2245 | 131 | #define __LC_CPU_TIMER_SAVE_AREA 0x1328 |
ff6b8ea6 | 132 | #define __LC_CLOCK_COMP_SAVE_AREA 0x1331 |
1da177e4 LT |
133 | #define __LC_AREGS_SAVE_AREA 0x1340 |
134 | #define __LC_CREGS_SAVE_AREA 0x1380 | |
135 | #endif /* __s390x__ */ | |
136 | ||
137 | #ifndef __ASSEMBLY__ | |
138 | ||
1da177e4 LT |
139 | #include <asm/processor.h> |
140 | #include <linux/types.h> | |
141 | #include <asm/sigp.h> | |
142 | ||
143 | void restart_int_handler(void); | |
144 | void ext_int_handler(void); | |
145 | void system_call(void); | |
146 | void pgm_check_handler(void); | |
147 | void mcck_int_handler(void); | |
148 | void io_int_handler(void); | |
149 | ||
150 | struct _lowcore | |
151 | { | |
152 | #ifndef __s390x__ | |
153 | /* prefix area: defined by architecture */ | |
154 | psw_t restart_psw; /* 0x000 */ | |
155 | __u32 ccw2[4]; /* 0x008 */ | |
156 | psw_t external_old_psw; /* 0x018 */ | |
157 | psw_t svc_old_psw; /* 0x020 */ | |
158 | psw_t program_old_psw; /* 0x028 */ | |
159 | psw_t mcck_old_psw; /* 0x030 */ | |
160 | psw_t io_old_psw; /* 0x038 */ | |
161 | __u8 pad1[0x58-0x40]; /* 0x040 */ | |
162 | psw_t external_new_psw; /* 0x058 */ | |
163 | psw_t svc_new_psw; /* 0x060 */ | |
164 | psw_t program_new_psw; /* 0x068 */ | |
165 | psw_t mcck_new_psw; /* 0x070 */ | |
166 | psw_t io_new_psw; /* 0x078 */ | |
167 | __u32 ext_params; /* 0x080 */ | |
168 | __u16 cpu_addr; /* 0x084 */ | |
169 | __u16 ext_int_code; /* 0x086 */ | |
170 | __u16 svc_ilc; /* 0x088 */ | |
171 | __u16 svc_code; /* 0x08a */ | |
172 | __u16 pgm_ilc; /* 0x08c */ | |
173 | __u16 pgm_code; /* 0x08e */ | |
174 | __u32 trans_exc_code; /* 0x090 */ | |
175 | __u16 mon_class_num; /* 0x094 */ | |
176 | __u16 per_perc_atmid; /* 0x096 */ | |
177 | __u32 per_address; /* 0x098 */ | |
178 | __u32 monitor_code; /* 0x09c */ | |
179 | __u8 exc_access_id; /* 0x0a0 */ | |
180 | __u8 per_access_id; /* 0x0a1 */ | |
181 | __u8 pad2[0xB8-0xA2]; /* 0x0a2 */ | |
182 | __u16 subchannel_id; /* 0x0b8 */ | |
183 | __u16 subchannel_nr; /* 0x0ba */ | |
184 | __u32 io_int_parm; /* 0x0bc */ | |
185 | __u32 io_int_word; /* 0x0c0 */ | |
77fa2245 HC |
186 | __u8 pad3[0xD4-0xC4]; /* 0x0c4 */ |
187 | __u32 extended_save_area_addr; /* 0x0d4 */ | |
1da177e4 LT |
188 | __u32 cpu_timer_save_area[2]; /* 0x0d8 */ |
189 | __u32 clock_comp_save_area[2]; /* 0x0e0 */ | |
190 | __u32 mcck_interruption_code[2]; /* 0x0e8 */ | |
191 | __u8 pad4[0xf4-0xf0]; /* 0x0f0 */ | |
192 | __u32 external_damage_code; /* 0x0f4 */ | |
193 | __u32 failing_storage_address; /* 0x0f8 */ | |
194 | __u8 pad5[0x100-0xfc]; /* 0x0fc */ | |
195 | __u32 st_status_fixed_logout[4];/* 0x100 */ | |
196 | __u8 pad6[0x120-0x110]; /* 0x110 */ | |
197 | __u32 access_regs_save_area[16];/* 0x120 */ | |
198 | __u32 floating_pt_save_area[8]; /* 0x160 */ | |
199 | __u32 gpregs_save_area[16]; /* 0x180 */ | |
200 | __u32 cregs_save_area[16]; /* 0x1c0 */ | |
201 | ||
202 | psw_t return_psw; /* 0x200 */ | |
203 | __u8 irb[64]; /* 0x208 */ | |
204 | __u64 sync_enter_timer; /* 0x248 */ | |
205 | __u64 async_enter_timer; /* 0x250 */ | |
206 | __u64 exit_timer; /* 0x258 */ | |
207 | __u64 last_update_timer; /* 0x260 */ | |
208 | __u64 user_timer; /* 0x268 */ | |
209 | __u64 system_timer; /* 0x270 */ | |
210 | __u64 last_update_clock; /* 0x278 */ | |
211 | __u64 steal_clock; /* 0x280 */ | |
ae6aa2ea MS |
212 | psw_t return_mcck_psw; /* 0x288 */ |
213 | __u8 pad8[0xc00-0x290]; /* 0x290 */ | |
1da177e4 LT |
214 | |
215 | /* System info area */ | |
216 | __u32 save_area[16]; /* 0xc00 */ | |
217 | __u32 kernel_stack; /* 0xc40 */ | |
218 | __u32 thread_info; /* 0xc44 */ | |
219 | __u32 async_stack; /* 0xc48 */ | |
220 | __u32 kernel_asce; /* 0xc4c */ | |
221 | __u32 user_asce; /* 0xc50 */ | |
222 | __u32 panic_stack; /* 0xc54 */ | |
223 | __u8 pad10[0xc60-0xc58]; /* 0xc58 */ | |
224 | /* entry.S sensitive area start */ | |
225 | struct cpuinfo_S390 cpu_data; /* 0xc60 */ | |
226 | __u32 ipl_device; /* 0xc7c */ | |
227 | /* entry.S sensitive area end */ | |
228 | ||
229 | /* SMP info area: defined by DJB */ | |
230 | __u64 jiffy_timer; /* 0xc80 */ | |
231 | __u32 ext_call_fast; /* 0xc88 */ | |
232 | __u32 percpu_offset; /* 0xc8c */ | |
233 | __u32 current_task; /* 0xc90 */ | |
234 | __u32 softirq_pending; /* 0xc94 */ | |
235 | __u64 int_clock; /* 0xc98 */ | |
236 | __u8 pad11[0xe00-0xca0]; /* 0xca0 */ | |
237 | ||
238 | /* 0xe00 is used as indicator for dump tools */ | |
239 | /* whether the kernel died with panic() or not */ | |
240 | __u32 panic_magic; /* 0xe00 */ | |
241 | ||
242 | /* Align to the top 1k of prefix area */ | |
243 | __u8 pad12[0x1000-0xe04]; /* 0xe04 */ | |
244 | #else /* !__s390x__ */ | |
245 | /* prefix area: defined by architecture */ | |
246 | __u32 ccw1[2]; /* 0x000 */ | |
247 | __u32 ccw2[4]; /* 0x008 */ | |
248 | __u8 pad1[0x80-0x18]; /* 0x018 */ | |
249 | __u32 ext_params; /* 0x080 */ | |
250 | __u16 cpu_addr; /* 0x084 */ | |
251 | __u16 ext_int_code; /* 0x086 */ | |
252 | __u16 svc_ilc; /* 0x088 */ | |
253 | __u16 svc_code; /* 0x08a */ | |
254 | __u16 pgm_ilc; /* 0x08c */ | |
255 | __u16 pgm_code; /* 0x08e */ | |
256 | __u32 data_exc_code; /* 0x090 */ | |
257 | __u16 mon_class_num; /* 0x094 */ | |
258 | __u16 per_perc_atmid; /* 0x096 */ | |
259 | addr_t per_address; /* 0x098 */ | |
260 | __u8 exc_access_id; /* 0x0a0 */ | |
261 | __u8 per_access_id; /* 0x0a1 */ | |
262 | __u8 op_access_id; /* 0x0a2 */ | |
263 | __u8 ar_access_id; /* 0x0a3 */ | |
264 | __u8 pad2[0xA8-0xA4]; /* 0x0a4 */ | |
265 | addr_t trans_exc_code; /* 0x0A0 */ | |
266 | addr_t monitor_code; /* 0x09c */ | |
267 | __u16 subchannel_id; /* 0x0b8 */ | |
268 | __u16 subchannel_nr; /* 0x0ba */ | |
269 | __u32 io_int_parm; /* 0x0bc */ | |
270 | __u32 io_int_word; /* 0x0c0 */ | |
271 | __u8 pad3[0xc8-0xc4]; /* 0x0c4 */ | |
272 | __u32 stfl_fac_list; /* 0x0c8 */ | |
273 | __u8 pad4[0xe8-0xcc]; /* 0x0cc */ | |
274 | __u32 mcck_interruption_code[2]; /* 0x0e8 */ | |
275 | __u8 pad5[0xf4-0xf0]; /* 0x0f0 */ | |
276 | __u32 external_damage_code; /* 0x0f4 */ | |
277 | addr_t failing_storage_address; /* 0x0f8 */ | |
278 | __u8 pad6[0x120-0x100]; /* 0x100 */ | |
279 | psw_t restart_old_psw; /* 0x120 */ | |
280 | psw_t external_old_psw; /* 0x130 */ | |
281 | psw_t svc_old_psw; /* 0x140 */ | |
282 | psw_t program_old_psw; /* 0x150 */ | |
283 | psw_t mcck_old_psw; /* 0x160 */ | |
284 | psw_t io_old_psw; /* 0x170 */ | |
285 | __u8 pad7[0x1a0-0x180]; /* 0x180 */ | |
286 | psw_t restart_psw; /* 0x1a0 */ | |
287 | psw_t external_new_psw; /* 0x1b0 */ | |
288 | psw_t svc_new_psw; /* 0x1c0 */ | |
289 | psw_t program_new_psw; /* 0x1d0 */ | |
290 | psw_t mcck_new_psw; /* 0x1e0 */ | |
291 | psw_t io_new_psw; /* 0x1f0 */ | |
292 | psw_t return_psw; /* 0x200 */ | |
293 | __u8 irb[64]; /* 0x210 */ | |
294 | __u64 sync_enter_timer; /* 0x250 */ | |
295 | __u64 async_enter_timer; /* 0x258 */ | |
296 | __u64 exit_timer; /* 0x260 */ | |
297 | __u64 last_update_timer; /* 0x268 */ | |
298 | __u64 user_timer; /* 0x270 */ | |
299 | __u64 system_timer; /* 0x278 */ | |
300 | __u64 last_update_clock; /* 0x280 */ | |
301 | __u64 steal_clock; /* 0x288 */ | |
ae6aa2ea MS |
302 | psw_t return_mcck_psw; /* 0x290 */ |
303 | __u8 pad8[0xc00-0x2a0]; /* 0x2a0 */ | |
1da177e4 LT |
304 | /* System info area */ |
305 | __u64 save_area[16]; /* 0xc00 */ | |
306 | __u8 pad9[0xd40-0xc80]; /* 0xc80 */ | |
307 | __u64 kernel_stack; /* 0xd40 */ | |
308 | __u64 thread_info; /* 0xd48 */ | |
309 | __u64 async_stack; /* 0xd50 */ | |
310 | __u64 kernel_asce; /* 0xd58 */ | |
311 | __u64 user_asce; /* 0xd60 */ | |
312 | __u64 panic_stack; /* 0xd68 */ | |
313 | __u8 pad10[0xd80-0xd70]; /* 0xd70 */ | |
314 | /* entry.S sensitive area start */ | |
315 | struct cpuinfo_S390 cpu_data; /* 0xd80 */ | |
316 | __u32 ipl_device; /* 0xdb8 */ | |
317 | __u32 pad11; /* 0xdbc */ | |
318 | /* entry.S sensitive area end */ | |
319 | ||
320 | /* SMP info area: defined by DJB */ | |
321 | __u64 jiffy_timer; /* 0xdc0 */ | |
322 | __u64 ext_call_fast; /* 0xdc8 */ | |
323 | __u64 percpu_offset; /* 0xdd0 */ | |
324 | __u64 current_task; /* 0xdd8 */ | |
325 | __u64 softirq_pending; /* 0xde0 */ | |
326 | __u64 int_clock; /* 0xde8 */ | |
327 | __u8 pad12[0xe00-0xdf0]; /* 0xdf0 */ | |
328 | ||
329 | /* 0xe00 is used as indicator for dump tools */ | |
330 | /* whether the kernel died with panic() or not */ | |
331 | __u32 panic_magic; /* 0xe00 */ | |
332 | ||
333 | __u8 pad13[0x1200-0xe04]; /* 0xe04 */ | |
334 | ||
335 | /* System info area */ | |
336 | ||
337 | __u64 floating_pt_save_area[16]; /* 0x1200 */ | |
338 | __u64 gpregs_save_area[16]; /* 0x1280 */ | |
339 | __u32 st_status_fixed_logout[4]; /* 0x1300 */ | |
340 | __u8 pad14[0x1318-0x1310]; /* 0x1310 */ | |
341 | __u32 prefixreg_save_area; /* 0x1318 */ | |
342 | __u32 fpt_creg_save_area; /* 0x131c */ | |
343 | __u8 pad15[0x1324-0x1320]; /* 0x1320 */ | |
344 | __u32 tod_progreg_save_area; /* 0x1324 */ | |
345 | __u32 cpu_timer_save_area[2]; /* 0x1328 */ | |
346 | __u32 clock_comp_save_area[2]; /* 0x1330 */ | |
347 | __u8 pad16[0x1340-0x1338]; /* 0x1338 */ | |
348 | __u32 access_regs_save_area[16]; /* 0x1340 */ | |
349 | __u64 cregs_save_area[16]; /* 0x1380 */ | |
350 | ||
351 | /* align to the top of the prefix area */ | |
352 | ||
353 | __u8 pad17[0x2000-0x1400]; /* 0x1400 */ | |
354 | #endif /* !__s390x__ */ | |
355 | } __attribute__((packed)); /* End structure*/ | |
356 | ||
357 | #define S390_lowcore (*((struct _lowcore *) 0)) | |
358 | extern struct _lowcore *lowcore_ptr[]; | |
359 | ||
4448aaf0 | 360 | static inline void set_prefix(__u32 address) |
1da177e4 | 361 | { |
94c12cc7 | 362 | asm volatile("spx %0" : : "m" (address) : "memory"); |
1da177e4 LT |
363 | } |
364 | ||
15e9b586 HC |
365 | static inline __u32 store_prefix(void) |
366 | { | |
367 | __u32 address; | |
368 | ||
369 | asm volatile("stpx %0" : "=m" (address)); | |
370 | return address; | |
371 | } | |
372 | ||
1da177e4 LT |
373 | #define __PANIC_MAGIC 0xDEADC0DE |
374 | ||
375 | #endif | |
376 | ||
377 | #endif |