Commit | Line | Data |
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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 | |
1da177e4 LT |
83 | #define __LC_CURRENT 0xC90 |
84 | #define __LC_INT_CLOCK 0xC98 | |
85 | #else /* __s390x__ */ | |
86 | #define __LC_IRB 0x210 | |
87 | #define __LC_SYNC_ENTER_TIMER 0x250 | |
88 | #define __LC_ASYNC_ENTER_TIMER 0x258 | |
89 | #define __LC_EXIT_TIMER 0x260 | |
90 | #define __LC_LAST_UPDATE_TIMER 0x268 | |
91 | #define __LC_USER_TIMER 0x270 | |
92 | #define __LC_SYSTEM_TIMER 0x278 | |
93 | #define __LC_LAST_UPDATE_CLOCK 0x280 | |
94 | #define __LC_STEAL_CLOCK 0x288 | |
ae6aa2ea | 95 | #define __LC_RETURN_MCCK_PSW 0x290 |
1da177e4 LT |
96 | #define __LC_KERNEL_STACK 0xD40 |
97 | #define __LC_THREAD_INFO 0xD48 | |
98 | #define __LC_ASYNC_STACK 0xD50 | |
99 | #define __LC_KERNEL_ASCE 0xD58 | |
100 | #define __LC_USER_ASCE 0xD60 | |
101 | #define __LC_PANIC_STACK 0xD68 | |
4ae9538d PO |
102 | #define __LC_CPUID 0xD80 |
103 | #define __LC_CPUADDR 0xD88 | |
1da177e4 | 104 | #define __LC_IPLDEV 0xDB8 |
1da177e4 LT |
105 | #define __LC_CURRENT 0xDD8 |
106 | #define __LC_INT_CLOCK 0xDE8 | |
107 | #endif /* __s390x__ */ | |
108 | ||
1da177e4 | 109 | |
ff6b8ea6 | 110 | #define __LC_PANIC_MAGIC 0xE00 |
1da177e4 LT |
111 | #ifndef __s390x__ |
112 | #define __LC_PFAULT_INTPARM 0x080 | |
77fa2245 | 113 | #define __LC_CPU_TIMER_SAVE_AREA 0x0D8 |
ff6b8ea6 MH |
114 | #define __LC_CLOCK_COMP_SAVE_AREA 0x0E0 |
115 | #define __LC_PSW_SAVE_AREA 0x100 | |
116 | #define __LC_PREFIX_SAVE_AREA 0x108 | |
1da177e4 | 117 | #define __LC_AREGS_SAVE_AREA 0x120 |
ff6b8ea6 | 118 | #define __LC_FPREGS_SAVE_AREA 0x160 |
77fa2245 | 119 | #define __LC_GPREGS_SAVE_AREA 0x180 |
1da177e4 LT |
120 | #define __LC_CREGS_SAVE_AREA 0x1C0 |
121 | #else /* __s390x__ */ | |
122 | #define __LC_PFAULT_INTPARM 0x11B8 | |
ff6b8ea6 | 123 | #define __LC_FPREGS_SAVE_AREA 0x1200 |
77fa2245 | 124 | #define __LC_GPREGS_SAVE_AREA 0x1280 |
ff6b8ea6 MH |
125 | #define __LC_PSW_SAVE_AREA 0x1300 |
126 | #define __LC_PREFIX_SAVE_AREA 0x1318 | |
127 | #define __LC_FP_CREG_SAVE_AREA 0x131C | |
128 | #define __LC_TODREG_SAVE_AREA 0x1324 | |
77fa2245 | 129 | #define __LC_CPU_TIMER_SAVE_AREA 0x1328 |
ff6b8ea6 | 130 | #define __LC_CLOCK_COMP_SAVE_AREA 0x1331 |
1da177e4 LT |
131 | #define __LC_AREGS_SAVE_AREA 0x1340 |
132 | #define __LC_CREGS_SAVE_AREA 0x1380 | |
133 | #endif /* __s390x__ */ | |
134 | ||
135 | #ifndef __ASSEMBLY__ | |
136 | ||
1da177e4 LT |
137 | #include <asm/processor.h> |
138 | #include <linux/types.h> | |
139 | #include <asm/sigp.h> | |
140 | ||
141 | void restart_int_handler(void); | |
142 | void ext_int_handler(void); | |
143 | void system_call(void); | |
144 | void pgm_check_handler(void); | |
145 | void mcck_int_handler(void); | |
146 | void io_int_handler(void); | |
147 | ||
411ed322 MH |
148 | struct save_area_s390 { |
149 | u32 ext_save; | |
150 | u64 timer; | |
151 | u64 clk_cmp; | |
152 | u8 pad1[24]; | |
153 | u8 psw[8]; | |
154 | u32 pref_reg; | |
155 | u8 pad2[20]; | |
156 | u32 acc_regs[16]; | |
157 | u64 fp_regs[4]; | |
158 | u32 gp_regs[16]; | |
159 | u32 ctrl_regs[16]; | |
160 | } __attribute__((packed)); | |
161 | ||
162 | struct save_area_s390x { | |
163 | u64 fp_regs[16]; | |
164 | u64 gp_regs[16]; | |
165 | u8 psw[16]; | |
166 | u8 pad1[8]; | |
167 | u32 pref_reg; | |
168 | u32 fp_ctrl_reg; | |
169 | u8 pad2[4]; | |
170 | u32 tod_reg; | |
171 | u64 timer; | |
172 | u64 clk_cmp; | |
173 | u8 pad3[8]; | |
174 | u32 acc_regs[16]; | |
175 | u64 ctrl_regs[16]; | |
176 | } __attribute__((packed)); | |
177 | ||
178 | union save_area { | |
179 | struct save_area_s390 s390; | |
180 | struct save_area_s390x s390x; | |
181 | }; | |
182 | ||
183 | #define SAVE_AREA_BASE_S390 0xd4 | |
184 | #define SAVE_AREA_BASE_S390X 0x1200 | |
185 | ||
186 | #ifndef __s390x__ | |
187 | #define SAVE_AREA_SIZE sizeof(struct save_area_s390) | |
188 | #define SAVE_AREA_BASE SAVE_AREA_BASE_S390 | |
189 | #else | |
190 | #define SAVE_AREA_SIZE sizeof(struct save_area_s390x) | |
191 | #define SAVE_AREA_BASE SAVE_AREA_BASE_S390X | |
192 | #endif | |
193 | ||
1da177e4 LT |
194 | struct _lowcore |
195 | { | |
196 | #ifndef __s390x__ | |
197 | /* prefix area: defined by architecture */ | |
198 | psw_t restart_psw; /* 0x000 */ | |
199 | __u32 ccw2[4]; /* 0x008 */ | |
200 | psw_t external_old_psw; /* 0x018 */ | |
201 | psw_t svc_old_psw; /* 0x020 */ | |
202 | psw_t program_old_psw; /* 0x028 */ | |
203 | psw_t mcck_old_psw; /* 0x030 */ | |
204 | psw_t io_old_psw; /* 0x038 */ | |
205 | __u8 pad1[0x58-0x40]; /* 0x040 */ | |
206 | psw_t external_new_psw; /* 0x058 */ | |
207 | psw_t svc_new_psw; /* 0x060 */ | |
208 | psw_t program_new_psw; /* 0x068 */ | |
209 | psw_t mcck_new_psw; /* 0x070 */ | |
210 | psw_t io_new_psw; /* 0x078 */ | |
211 | __u32 ext_params; /* 0x080 */ | |
212 | __u16 cpu_addr; /* 0x084 */ | |
213 | __u16 ext_int_code; /* 0x086 */ | |
214 | __u16 svc_ilc; /* 0x088 */ | |
215 | __u16 svc_code; /* 0x08a */ | |
216 | __u16 pgm_ilc; /* 0x08c */ | |
217 | __u16 pgm_code; /* 0x08e */ | |
218 | __u32 trans_exc_code; /* 0x090 */ | |
219 | __u16 mon_class_num; /* 0x094 */ | |
220 | __u16 per_perc_atmid; /* 0x096 */ | |
221 | __u32 per_address; /* 0x098 */ | |
222 | __u32 monitor_code; /* 0x09c */ | |
223 | __u8 exc_access_id; /* 0x0a0 */ | |
224 | __u8 per_access_id; /* 0x0a1 */ | |
225 | __u8 pad2[0xB8-0xA2]; /* 0x0a2 */ | |
226 | __u16 subchannel_id; /* 0x0b8 */ | |
227 | __u16 subchannel_nr; /* 0x0ba */ | |
228 | __u32 io_int_parm; /* 0x0bc */ | |
229 | __u32 io_int_word; /* 0x0c0 */ | |
cf8ba7a9 MS |
230 | __u8 pad3[0xc8-0xc4]; /* 0x0c4 */ |
231 | __u32 stfl_fac_list; /* 0x0c8 */ | |
232 | __u8 pad4[0xd4-0xcc]; /* 0x0cc */ | |
77fa2245 | 233 | __u32 extended_save_area_addr; /* 0x0d4 */ |
1da177e4 LT |
234 | __u32 cpu_timer_save_area[2]; /* 0x0d8 */ |
235 | __u32 clock_comp_save_area[2]; /* 0x0e0 */ | |
236 | __u32 mcck_interruption_code[2]; /* 0x0e8 */ | |
cf8ba7a9 | 237 | __u8 pad5[0xf4-0xf0]; /* 0x0f0 */ |
1da177e4 LT |
238 | __u32 external_damage_code; /* 0x0f4 */ |
239 | __u32 failing_storage_address; /* 0x0f8 */ | |
cf8ba7a9 | 240 | __u8 pad6[0x100-0xfc]; /* 0x0fc */ |
1da177e4 | 241 | __u32 st_status_fixed_logout[4];/* 0x100 */ |
cf8ba7a9 | 242 | __u8 pad7[0x120-0x110]; /* 0x110 */ |
1da177e4 LT |
243 | __u32 access_regs_save_area[16];/* 0x120 */ |
244 | __u32 floating_pt_save_area[8]; /* 0x160 */ | |
245 | __u32 gpregs_save_area[16]; /* 0x180 */ | |
246 | __u32 cregs_save_area[16]; /* 0x1c0 */ | |
247 | ||
248 | psw_t return_psw; /* 0x200 */ | |
249 | __u8 irb[64]; /* 0x208 */ | |
250 | __u64 sync_enter_timer; /* 0x248 */ | |
251 | __u64 async_enter_timer; /* 0x250 */ | |
252 | __u64 exit_timer; /* 0x258 */ | |
253 | __u64 last_update_timer; /* 0x260 */ | |
254 | __u64 user_timer; /* 0x268 */ | |
255 | __u64 system_timer; /* 0x270 */ | |
256 | __u64 last_update_clock; /* 0x278 */ | |
257 | __u64 steal_clock; /* 0x280 */ | |
ae6aa2ea MS |
258 | psw_t return_mcck_psw; /* 0x288 */ |
259 | __u8 pad8[0xc00-0x290]; /* 0x290 */ | |
1da177e4 LT |
260 | |
261 | /* System info area */ | |
262 | __u32 save_area[16]; /* 0xc00 */ | |
263 | __u32 kernel_stack; /* 0xc40 */ | |
264 | __u32 thread_info; /* 0xc44 */ | |
265 | __u32 async_stack; /* 0xc48 */ | |
266 | __u32 kernel_asce; /* 0xc4c */ | |
267 | __u32 user_asce; /* 0xc50 */ | |
268 | __u32 panic_stack; /* 0xc54 */ | |
c1821c2e GS |
269 | __u32 user_exec_asce; /* 0xc58 */ |
270 | __u8 pad10[0xc60-0xc5c]; /* 0xc5c */ | |
1da177e4 LT |
271 | /* entry.S sensitive area start */ |
272 | struct cpuinfo_S390 cpu_data; /* 0xc60 */ | |
273 | __u32 ipl_device; /* 0xc7c */ | |
274 | /* entry.S sensitive area end */ | |
275 | ||
276 | /* SMP info area: defined by DJB */ | |
5a62b192 | 277 | __u64 clock_comparator; /* 0xc80 */ |
1da177e4 LT |
278 | __u32 ext_call_fast; /* 0xc88 */ |
279 | __u32 percpu_offset; /* 0xc8c */ | |
280 | __u32 current_task; /* 0xc90 */ | |
281 | __u32 softirq_pending; /* 0xc94 */ | |
282 | __u64 int_clock; /* 0xc98 */ | |
283 | __u8 pad11[0xe00-0xca0]; /* 0xca0 */ | |
284 | ||
285 | /* 0xe00 is used as indicator for dump tools */ | |
286 | /* whether the kernel died with panic() or not */ | |
287 | __u32 panic_magic; /* 0xe00 */ | |
288 | ||
289 | /* Align to the top 1k of prefix area */ | |
290 | __u8 pad12[0x1000-0xe04]; /* 0xe04 */ | |
291 | #else /* !__s390x__ */ | |
292 | /* prefix area: defined by architecture */ | |
293 | __u32 ccw1[2]; /* 0x000 */ | |
294 | __u32 ccw2[4]; /* 0x008 */ | |
295 | __u8 pad1[0x80-0x18]; /* 0x018 */ | |
296 | __u32 ext_params; /* 0x080 */ | |
297 | __u16 cpu_addr; /* 0x084 */ | |
298 | __u16 ext_int_code; /* 0x086 */ | |
299 | __u16 svc_ilc; /* 0x088 */ | |
300 | __u16 svc_code; /* 0x08a */ | |
301 | __u16 pgm_ilc; /* 0x08c */ | |
302 | __u16 pgm_code; /* 0x08e */ | |
303 | __u32 data_exc_code; /* 0x090 */ | |
304 | __u16 mon_class_num; /* 0x094 */ | |
305 | __u16 per_perc_atmid; /* 0x096 */ | |
306 | addr_t per_address; /* 0x098 */ | |
307 | __u8 exc_access_id; /* 0x0a0 */ | |
308 | __u8 per_access_id; /* 0x0a1 */ | |
309 | __u8 op_access_id; /* 0x0a2 */ | |
310 | __u8 ar_access_id; /* 0x0a3 */ | |
311 | __u8 pad2[0xA8-0xA4]; /* 0x0a4 */ | |
312 | addr_t trans_exc_code; /* 0x0A0 */ | |
313 | addr_t monitor_code; /* 0x09c */ | |
314 | __u16 subchannel_id; /* 0x0b8 */ | |
315 | __u16 subchannel_nr; /* 0x0ba */ | |
316 | __u32 io_int_parm; /* 0x0bc */ | |
317 | __u32 io_int_word; /* 0x0c0 */ | |
318 | __u8 pad3[0xc8-0xc4]; /* 0x0c4 */ | |
319 | __u32 stfl_fac_list; /* 0x0c8 */ | |
320 | __u8 pad4[0xe8-0xcc]; /* 0x0cc */ | |
321 | __u32 mcck_interruption_code[2]; /* 0x0e8 */ | |
322 | __u8 pad5[0xf4-0xf0]; /* 0x0f0 */ | |
323 | __u32 external_damage_code; /* 0x0f4 */ | |
324 | addr_t failing_storage_address; /* 0x0f8 */ | |
325 | __u8 pad6[0x120-0x100]; /* 0x100 */ | |
326 | psw_t restart_old_psw; /* 0x120 */ | |
327 | psw_t external_old_psw; /* 0x130 */ | |
328 | psw_t svc_old_psw; /* 0x140 */ | |
329 | psw_t program_old_psw; /* 0x150 */ | |
330 | psw_t mcck_old_psw; /* 0x160 */ | |
331 | psw_t io_old_psw; /* 0x170 */ | |
332 | __u8 pad7[0x1a0-0x180]; /* 0x180 */ | |
333 | psw_t restart_psw; /* 0x1a0 */ | |
334 | psw_t external_new_psw; /* 0x1b0 */ | |
335 | psw_t svc_new_psw; /* 0x1c0 */ | |
336 | psw_t program_new_psw; /* 0x1d0 */ | |
337 | psw_t mcck_new_psw; /* 0x1e0 */ | |
338 | psw_t io_new_psw; /* 0x1f0 */ | |
339 | psw_t return_psw; /* 0x200 */ | |
340 | __u8 irb[64]; /* 0x210 */ | |
341 | __u64 sync_enter_timer; /* 0x250 */ | |
342 | __u64 async_enter_timer; /* 0x258 */ | |
343 | __u64 exit_timer; /* 0x260 */ | |
344 | __u64 last_update_timer; /* 0x268 */ | |
345 | __u64 user_timer; /* 0x270 */ | |
346 | __u64 system_timer; /* 0x278 */ | |
347 | __u64 last_update_clock; /* 0x280 */ | |
348 | __u64 steal_clock; /* 0x288 */ | |
ae6aa2ea MS |
349 | psw_t return_mcck_psw; /* 0x290 */ |
350 | __u8 pad8[0xc00-0x2a0]; /* 0x2a0 */ | |
1da177e4 LT |
351 | /* System info area */ |
352 | __u64 save_area[16]; /* 0xc00 */ | |
353 | __u8 pad9[0xd40-0xc80]; /* 0xc80 */ | |
354 | __u64 kernel_stack; /* 0xd40 */ | |
355 | __u64 thread_info; /* 0xd48 */ | |
356 | __u64 async_stack; /* 0xd50 */ | |
357 | __u64 kernel_asce; /* 0xd58 */ | |
358 | __u64 user_asce; /* 0xd60 */ | |
359 | __u64 panic_stack; /* 0xd68 */ | |
c1821c2e GS |
360 | __u64 user_exec_asce; /* 0xd70 */ |
361 | __u8 pad10[0xd80-0xd78]; /* 0xd78 */ | |
1da177e4 LT |
362 | /* entry.S sensitive area start */ |
363 | struct cpuinfo_S390 cpu_data; /* 0xd80 */ | |
364 | __u32 ipl_device; /* 0xdb8 */ | |
365 | __u32 pad11; /* 0xdbc */ | |
366 | /* entry.S sensitive area end */ | |
367 | ||
368 | /* SMP info area: defined by DJB */ | |
5a62b192 | 369 | __u64 clock_comparator; /* 0xdc0 */ |
1da177e4 LT |
370 | __u64 ext_call_fast; /* 0xdc8 */ |
371 | __u64 percpu_offset; /* 0xdd0 */ | |
372 | __u64 current_task; /* 0xdd8 */ | |
1a5debaa HC |
373 | __u32 softirq_pending; /* 0xde0 */ |
374 | __u32 pad_0x0de4; /* 0xde4 */ | |
1da177e4 LT |
375 | __u64 int_clock; /* 0xde8 */ |
376 | __u8 pad12[0xe00-0xdf0]; /* 0xdf0 */ | |
377 | ||
378 | /* 0xe00 is used as indicator for dump tools */ | |
379 | /* whether the kernel died with panic() or not */ | |
380 | __u32 panic_magic; /* 0xe00 */ | |
381 | ||
382 | __u8 pad13[0x1200-0xe04]; /* 0xe04 */ | |
383 | ||
384 | /* System info area */ | |
385 | ||
386 | __u64 floating_pt_save_area[16]; /* 0x1200 */ | |
387 | __u64 gpregs_save_area[16]; /* 0x1280 */ | |
388 | __u32 st_status_fixed_logout[4]; /* 0x1300 */ | |
389 | __u8 pad14[0x1318-0x1310]; /* 0x1310 */ | |
390 | __u32 prefixreg_save_area; /* 0x1318 */ | |
391 | __u32 fpt_creg_save_area; /* 0x131c */ | |
392 | __u8 pad15[0x1324-0x1320]; /* 0x1320 */ | |
393 | __u32 tod_progreg_save_area; /* 0x1324 */ | |
394 | __u32 cpu_timer_save_area[2]; /* 0x1328 */ | |
395 | __u32 clock_comp_save_area[2]; /* 0x1330 */ | |
396 | __u8 pad16[0x1340-0x1338]; /* 0x1338 */ | |
397 | __u32 access_regs_save_area[16]; /* 0x1340 */ | |
398 | __u64 cregs_save_area[16]; /* 0x1380 */ | |
399 | ||
400 | /* align to the top of the prefix area */ | |
401 | ||
402 | __u8 pad17[0x2000-0x1400]; /* 0x1400 */ | |
403 | #endif /* !__s390x__ */ | |
404 | } __attribute__((packed)); /* End structure*/ | |
405 | ||
406 | #define S390_lowcore (*((struct _lowcore *) 0)) | |
407 | extern struct _lowcore *lowcore_ptr[]; | |
408 | ||
4448aaf0 | 409 | static inline void set_prefix(__u32 address) |
1da177e4 | 410 | { |
94c12cc7 | 411 | asm volatile("spx %0" : : "m" (address) : "memory"); |
1da177e4 LT |
412 | } |
413 | ||
15e9b586 HC |
414 | static inline __u32 store_prefix(void) |
415 | { | |
416 | __u32 address; | |
417 | ||
418 | asm volatile("stpx %0" : "=m" (address)); | |
419 | return address; | |
420 | } | |
421 | ||
1da177e4 LT |
422 | #define __PANIC_MAGIC 0xDEADC0DE |
423 | ||
424 | #endif | |
425 | ||
426 | #endif |