Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Heiko Carstens | cbb870c | 2010-02-26 22:37:43 +0100 | [diff] [blame] | 2 | * Copyright IBM Corp. 1999,2010 |
| 3 | * Author(s): Hartmut Penner <hp@de.ibm.com>, |
| 4 | * Martin Schwidefsky <schwidefsky@de.ibm.com>, |
| 5 | * Denis Joseph Barrow, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | */ |
| 7 | |
| 8 | #ifndef _ASM_S390_LOWCORE_H |
| 9 | #define _ASM_S390_LOWCORE_H |
| 10 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | #include <linux/types.h> |
Heiko Carstens | cbb870c | 2010-02-26 22:37:43 +0100 | [diff] [blame] | 12 | #include <asm/ptrace.h> |
| 13 | #include <asm/cpu.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | |
| 15 | void restart_int_handler(void); |
| 16 | void ext_int_handler(void); |
| 17 | void system_call(void); |
| 18 | void pgm_check_handler(void); |
| 19 | void mcck_int_handler(void); |
| 20 | void io_int_handler(void); |
| 21 | |
Heiko Carstens | f64ca21 | 2010-02-26 22:37:32 +0100 | [diff] [blame] | 22 | #ifdef CONFIG_32BIT |
| 23 | |
Heiko Carstens | cbb870c | 2010-02-26 22:37:43 +0100 | [diff] [blame] | 24 | #define LC_ORDER 0 |
| 25 | #define LC_PAGES 1 |
| 26 | |
Heiko Carstens | f64ca21 | 2010-02-26 22:37:32 +0100 | [diff] [blame] | 27 | struct save_area { |
Michael Holzheu | 411ed32 | 2007-04-27 16:01:49 +0200 | [diff] [blame] | 28 | u32 ext_save; |
| 29 | u64 timer; |
| 30 | u64 clk_cmp; |
| 31 | u8 pad1[24]; |
| 32 | u8 psw[8]; |
| 33 | u32 pref_reg; |
| 34 | u8 pad2[20]; |
| 35 | u32 acc_regs[16]; |
| 36 | u64 fp_regs[4]; |
| 37 | u32 gp_regs[16]; |
| 38 | u32 ctrl_regs[16]; |
Heiko Carstens | cbb870c | 2010-02-26 22:37:43 +0100 | [diff] [blame] | 39 | } __packed; |
Michael Holzheu | 411ed32 | 2007-04-27 16:01:49 +0200 | [diff] [blame] | 40 | |
Heiko Carstens | cbb870c | 2010-02-26 22:37:43 +0100 | [diff] [blame] | 41 | struct _lowcore { |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 42 | psw_t restart_psw; /* 0x0000 */ |
Heiko Carstens | cbb870c | 2010-02-26 22:37:43 +0100 | [diff] [blame] | 43 | psw_t restart_old_psw; /* 0x0008 */ |
| 44 | __u8 pad_0x0010[0x0014-0x0010]; /* 0x0010 */ |
| 45 | __u32 ipl_parmblock_ptr; /* 0x0014 */ |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 46 | psw_t external_old_psw; /* 0x0018 */ |
| 47 | psw_t svc_old_psw; /* 0x0020 */ |
| 48 | psw_t program_old_psw; /* 0x0028 */ |
| 49 | psw_t mcck_old_psw; /* 0x0030 */ |
| 50 | psw_t io_old_psw; /* 0x0038 */ |
| 51 | __u8 pad_0x0040[0x0058-0x0040]; /* 0x0040 */ |
| 52 | psw_t external_new_psw; /* 0x0058 */ |
| 53 | psw_t svc_new_psw; /* 0x0060 */ |
| 54 | psw_t program_new_psw; /* 0x0068 */ |
| 55 | psw_t mcck_new_psw; /* 0x0070 */ |
| 56 | psw_t io_new_psw; /* 0x0078 */ |
| 57 | __u32 ext_params; /* 0x0080 */ |
| 58 | __u16 cpu_addr; /* 0x0084 */ |
| 59 | __u16 ext_int_code; /* 0x0086 */ |
| 60 | __u16 svc_ilc; /* 0x0088 */ |
| 61 | __u16 svc_code; /* 0x008a */ |
| 62 | __u16 pgm_ilc; /* 0x008c */ |
| 63 | __u16 pgm_code; /* 0x008e */ |
| 64 | __u32 trans_exc_code; /* 0x0090 */ |
| 65 | __u16 mon_class_num; /* 0x0094 */ |
| 66 | __u16 per_perc_atmid; /* 0x0096 */ |
| 67 | __u32 per_address; /* 0x0098 */ |
| 68 | __u32 monitor_code; /* 0x009c */ |
| 69 | __u8 exc_access_id; /* 0x00a0 */ |
| 70 | __u8 per_access_id; /* 0x00a1 */ |
Heiko Carstens | cbb870c | 2010-02-26 22:37:43 +0100 | [diff] [blame] | 71 | __u8 op_access_id; /* 0x00a2 */ |
| 72 | __u8 ar_access_id; /* 0x00a3 */ |
| 73 | __u8 pad_0x00a4[0x00b8-0x00a4]; /* 0x00a4 */ |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 74 | __u16 subchannel_id; /* 0x00b8 */ |
| 75 | __u16 subchannel_nr; /* 0x00ba */ |
| 76 | __u32 io_int_parm; /* 0x00bc */ |
| 77 | __u32 io_int_word; /* 0x00c0 */ |
| 78 | __u8 pad_0x00c4[0x00c8-0x00c4]; /* 0x00c4 */ |
| 79 | __u32 stfl_fac_list; /* 0x00c8 */ |
| 80 | __u8 pad_0x00cc[0x00d4-0x00cc]; /* 0x00cc */ |
| 81 | __u32 extended_save_area_addr; /* 0x00d4 */ |
| 82 | __u32 cpu_timer_save_area[2]; /* 0x00d8 */ |
| 83 | __u32 clock_comp_save_area[2]; /* 0x00e0 */ |
| 84 | __u32 mcck_interruption_code[2]; /* 0x00e8 */ |
| 85 | __u8 pad_0x00f0[0x00f4-0x00f0]; /* 0x00f0 */ |
| 86 | __u32 external_damage_code; /* 0x00f4 */ |
| 87 | __u32 failing_storage_address; /* 0x00f8 */ |
| 88 | __u8 pad_0x00fc[0x0100-0x00fc]; /* 0x00fc */ |
Heiko Carstens | cbb870c | 2010-02-26 22:37:43 +0100 | [diff] [blame] | 89 | psw_t psw_save_area; /* 0x0100 */ |
| 90 | __u32 prefixreg_save_area; /* 0x0108 */ |
| 91 | __u8 pad_0x010c[0x0120-0x010c]; /* 0x010c */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 93 | /* CPU register save area: defined by architecture */ |
| 94 | __u32 access_regs_save_area[16]; /* 0x0120 */ |
| 95 | __u32 floating_pt_save_area[8]; /* 0x0160 */ |
| 96 | __u32 gpregs_save_area[16]; /* 0x0180 */ |
| 97 | __u32 cregs_save_area[16]; /* 0x01c0 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 99 | /* Return psws. */ |
| 100 | __u32 save_area[16]; /* 0x0200 */ |
| 101 | psw_t return_psw; /* 0x0240 */ |
| 102 | psw_t return_mcck_psw; /* 0x0248 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 104 | /* CPU time accounting values */ |
| 105 | __u64 sync_enter_timer; /* 0x0250 */ |
| 106 | __u64 async_enter_timer; /* 0x0258 */ |
Martin Schwidefsky | 6377981 | 2010-05-17 10:00:03 +0200 | [diff] [blame^] | 107 | __u64 mcck_enter_timer; /* 0x0260 */ |
| 108 | __u64 exit_timer; /* 0x0268 */ |
| 109 | __u64 user_timer; /* 0x0270 */ |
| 110 | __u64 system_timer; /* 0x0278 */ |
| 111 | __u64 steal_timer; /* 0x0280 */ |
| 112 | __u64 last_update_timer; /* 0x0288 */ |
| 113 | __u64 last_update_clock; /* 0x0290 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 115 | /* Current process. */ |
Martin Schwidefsky | 6377981 | 2010-05-17 10:00:03 +0200 | [diff] [blame^] | 116 | __u32 current_task; /* 0x0298 */ |
| 117 | __u32 thread_info; /* 0x029c */ |
| 118 | __u32 kernel_stack; /* 0x02a0 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 120 | /* Interrupt and panic stack. */ |
Martin Schwidefsky | 6377981 | 2010-05-17 10:00:03 +0200 | [diff] [blame^] | 121 | __u32 async_stack; /* 0x02a4 */ |
| 122 | __u32 panic_stack; /* 0x02a8 */ |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 123 | |
| 124 | /* Address space pointer. */ |
Martin Schwidefsky | 6377981 | 2010-05-17 10:00:03 +0200 | [diff] [blame^] | 125 | __u32 kernel_asce; /* 0x02ac */ |
| 126 | __u32 user_asce; /* 0x02b0 */ |
| 127 | __u32 user_exec_asce; /* 0x02b4 */ |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 128 | |
| 129 | /* SMP info area */ |
Martin Schwidefsky | 6377981 | 2010-05-17 10:00:03 +0200 | [diff] [blame^] | 130 | __u32 cpu_nr; /* 0x02b8 */ |
| 131 | __u32 softirq_pending; /* 0x02bc */ |
| 132 | __u32 percpu_offset; /* 0x02c0 */ |
| 133 | __u32 ext_call_fast; /* 0x02c4 */ |
| 134 | __u64 int_clock; /* 0x02c8 */ |
| 135 | __u64 mcck_clock; /* 0x02d0 */ |
| 136 | __u64 clock_comparator; /* 0x02d8 */ |
| 137 | __u32 machine_flags; /* 0x02e0 */ |
| 138 | __u32 ftrace_func; /* 0x02e4 */ |
| 139 | __u8 pad_0x02e8[0x0300-0x02e8]; /* 0x02e8 */ |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 140 | |
| 141 | /* Interrupt response block */ |
| 142 | __u8 irb[64]; /* 0x0300 */ |
| 143 | |
Heiko Carstens | 7717aef | 2010-02-09 09:46:09 +0100 | [diff] [blame] | 144 | __u8 pad_0x0340[0x0e00-0x0340]; /* 0x0340 */ |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 145 | |
| 146 | /* |
| 147 | * 0xe00 contains the address of the IPL Parameter Information |
| 148 | * block. Dump tools need IPIB for IPL after dump. |
| 149 | * Note: do not change the position of any fields in 0x0e00-0x0f00 |
| 150 | */ |
| 151 | __u32 ipib; /* 0x0e00 */ |
| 152 | __u32 ipib_checksum; /* 0x0e04 */ |
| 153 | |
| 154 | /* Align to the top 1k of prefix area */ |
| 155 | __u8 pad_0x0e08[0x1000-0x0e08]; /* 0x0e08 */ |
Heiko Carstens | cbb870c | 2010-02-26 22:37:43 +0100 | [diff] [blame] | 156 | } __packed; |
| 157 | |
| 158 | #else /* CONFIG_32BIT */ |
| 159 | |
| 160 | #define LC_ORDER 1 |
| 161 | #define LC_PAGES 2 |
| 162 | |
| 163 | struct save_area { |
| 164 | u64 fp_regs[16]; |
| 165 | u64 gp_regs[16]; |
| 166 | u8 psw[16]; |
| 167 | u8 pad1[8]; |
| 168 | u32 pref_reg; |
| 169 | u32 fp_ctrl_reg; |
| 170 | u8 pad2[4]; |
| 171 | u32 tod_reg; |
| 172 | u64 timer; |
| 173 | u64 clk_cmp; |
| 174 | u8 pad3[8]; |
| 175 | u32 acc_regs[16]; |
| 176 | u64 ctrl_regs[16]; |
| 177 | } __packed; |
| 178 | |
| 179 | struct _lowcore { |
| 180 | __u8 pad_0x0000[0x0014-0x0000]; /* 0x0000 */ |
| 181 | __u32 ipl_parmblock_ptr; /* 0x0014 */ |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 182 | __u8 pad_0x0018[0x0080-0x0018]; /* 0x0018 */ |
| 183 | __u32 ext_params; /* 0x0080 */ |
| 184 | __u16 cpu_addr; /* 0x0084 */ |
| 185 | __u16 ext_int_code; /* 0x0086 */ |
| 186 | __u16 svc_ilc; /* 0x0088 */ |
| 187 | __u16 svc_code; /* 0x008a */ |
| 188 | __u16 pgm_ilc; /* 0x008c */ |
| 189 | __u16 pgm_code; /* 0x008e */ |
| 190 | __u32 data_exc_code; /* 0x0090 */ |
| 191 | __u16 mon_class_num; /* 0x0094 */ |
| 192 | __u16 per_perc_atmid; /* 0x0096 */ |
Martin Schwidefsky | 94038a9 | 2010-05-17 10:00:00 +0200 | [diff] [blame] | 193 | __u64 per_address; /* 0x0098 */ |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 194 | __u8 exc_access_id; /* 0x00a0 */ |
| 195 | __u8 per_access_id; /* 0x00a1 */ |
| 196 | __u8 op_access_id; /* 0x00a2 */ |
| 197 | __u8 ar_access_id; /* 0x00a3 */ |
| 198 | __u8 pad_0x00a4[0x00a8-0x00a4]; /* 0x00a4 */ |
Martin Schwidefsky | 94038a9 | 2010-05-17 10:00:00 +0200 | [diff] [blame] | 199 | __u64 trans_exc_code; /* 0x00a8 */ |
| 200 | __u64 monitor_code; /* 0x00b0 */ |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 201 | __u16 subchannel_id; /* 0x00b8 */ |
| 202 | __u16 subchannel_nr; /* 0x00ba */ |
| 203 | __u32 io_int_parm; /* 0x00bc */ |
| 204 | __u32 io_int_word; /* 0x00c0 */ |
| 205 | __u8 pad_0x00c4[0x00c8-0x00c4]; /* 0x00c4 */ |
| 206 | __u32 stfl_fac_list; /* 0x00c8 */ |
| 207 | __u8 pad_0x00cc[0x00e8-0x00cc]; /* 0x00cc */ |
| 208 | __u32 mcck_interruption_code[2]; /* 0x00e8 */ |
| 209 | __u8 pad_0x00f0[0x00f4-0x00f0]; /* 0x00f0 */ |
| 210 | __u32 external_damage_code; /* 0x00f4 */ |
Martin Schwidefsky | 94038a9 | 2010-05-17 10:00:00 +0200 | [diff] [blame] | 211 | __u64 failing_storage_address; /* 0x00f8 */ |
Heiko Carstens | cbb870c | 2010-02-26 22:37:43 +0100 | [diff] [blame] | 212 | __u8 pad_0x0100[0x0110-0x0100]; /* 0x0100 */ |
| 213 | __u64 breaking_event_addr; /* 0x0110 */ |
| 214 | __u8 pad_0x0118[0x0120-0x0118]; /* 0x0118 */ |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 215 | psw_t restart_old_psw; /* 0x0120 */ |
| 216 | psw_t external_old_psw; /* 0x0130 */ |
| 217 | psw_t svc_old_psw; /* 0x0140 */ |
| 218 | psw_t program_old_psw; /* 0x0150 */ |
| 219 | psw_t mcck_old_psw; /* 0x0160 */ |
| 220 | psw_t io_old_psw; /* 0x0170 */ |
| 221 | __u8 pad_0x0180[0x01a0-0x0180]; /* 0x0180 */ |
| 222 | psw_t restart_psw; /* 0x01a0 */ |
| 223 | psw_t external_new_psw; /* 0x01b0 */ |
| 224 | psw_t svc_new_psw; /* 0x01c0 */ |
| 225 | psw_t program_new_psw; /* 0x01d0 */ |
| 226 | psw_t mcck_new_psw; /* 0x01e0 */ |
| 227 | psw_t io_new_psw; /* 0x01f0 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 229 | /* Entry/exit save area & return psws. */ |
| 230 | __u64 save_area[16]; /* 0x0200 */ |
| 231 | psw_t return_psw; /* 0x0280 */ |
| 232 | psw_t return_mcck_psw; /* 0x0290 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 234 | /* CPU accounting and timing values. */ |
| 235 | __u64 sync_enter_timer; /* 0x02a0 */ |
| 236 | __u64 async_enter_timer; /* 0x02a8 */ |
Martin Schwidefsky | 6377981 | 2010-05-17 10:00:03 +0200 | [diff] [blame^] | 237 | __u64 mcck_enter_timer; /* 0x02b0 */ |
| 238 | __u64 exit_timer; /* 0x02b8 */ |
| 239 | __u64 user_timer; /* 0x02c0 */ |
| 240 | __u64 system_timer; /* 0x02c8 */ |
| 241 | __u64 steal_timer; /* 0x02d0 */ |
| 242 | __u64 last_update_timer; /* 0x02d8 */ |
| 243 | __u64 last_update_clock; /* 0x02e0 */ |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 244 | |
| 245 | /* Current process. */ |
Martin Schwidefsky | 6377981 | 2010-05-17 10:00:03 +0200 | [diff] [blame^] | 246 | __u64 current_task; /* 0x02e8 */ |
| 247 | __u64 thread_info; /* 0x02f0 */ |
| 248 | __u64 kernel_stack; /* 0x02f8 */ |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 249 | |
| 250 | /* Interrupt and panic stack. */ |
Martin Schwidefsky | 6377981 | 2010-05-17 10:00:03 +0200 | [diff] [blame^] | 251 | __u64 async_stack; /* 0x0300 */ |
| 252 | __u64 panic_stack; /* 0x0308 */ |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 253 | |
| 254 | /* Address space pointer. */ |
Martin Schwidefsky | 6377981 | 2010-05-17 10:00:03 +0200 | [diff] [blame^] | 255 | __u64 kernel_asce; /* 0x0310 */ |
| 256 | __u64 user_asce; /* 0x0318 */ |
| 257 | __u64 user_exec_asce; /* 0x0320 */ |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 258 | |
| 259 | /* SMP info area */ |
Martin Schwidefsky | 6377981 | 2010-05-17 10:00:03 +0200 | [diff] [blame^] | 260 | __u32 cpu_nr; /* 0x0328 */ |
| 261 | __u32 softirq_pending; /* 0x032c */ |
| 262 | __u64 percpu_offset; /* 0x0330 */ |
| 263 | __u64 ext_call_fast; /* 0x0338 */ |
| 264 | __u64 int_clock; /* 0x0340 */ |
| 265 | __u64 mcck_clock; /* 0x0348 */ |
| 266 | __u64 clock_comparator; /* 0x0350 */ |
| 267 | __u64 vdso_per_cpu_data; /* 0x0358 */ |
| 268 | __u64 machine_flags; /* 0x0360 */ |
| 269 | __u64 ftrace_func; /* 0x0368 */ |
| 270 | __u8 pad_0x0370[0x0380-0x0370]; /* 0x0370 */ |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 271 | |
| 272 | /* Interrupt response block. */ |
| 273 | __u8 irb[64]; /* 0x0380 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 274 | |
Martin Schwidefsky | c742b31 | 2008-12-31 15:11:42 +0100 | [diff] [blame] | 275 | /* Per cpu primary space access list */ |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 276 | __u32 paste[16]; /* 0x03c0 */ |
Martin Schwidefsky | c742b31 | 2008-12-31 15:11:42 +0100 | [diff] [blame] | 277 | |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 278 | __u8 pad_0x0400[0x0e00-0x0400]; /* 0x0400 */ |
Christian Borntraeger | 8a88ac6 | 2008-03-25 18:47:15 +0100 | [diff] [blame] | 279 | |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 280 | /* |
| 281 | * 0xe00 contains the address of the IPL Parameter Information |
| 282 | * block. Dump tools need IPIB for IPL after dump. |
| 283 | * Note: do not change the position of any fields in 0x0e00-0x0f00 |
| 284 | */ |
| 285 | __u64 ipib; /* 0x0e00 */ |
| 286 | __u32 ipib_checksum; /* 0x0e08 */ |
| 287 | __u8 pad_0x0e0c[0x11b8-0x0e0c]; /* 0x0e0c */ |
Christian Borntraeger | 8a88ac6 | 2008-03-25 18:47:15 +0100 | [diff] [blame] | 288 | |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 289 | /* 64 bit extparam used for pfault/diag 250: defined by architecture */ |
| 290 | __u64 ext_params2; /* 0x11B8 */ |
| 291 | __u8 pad_0x11c0[0x1200-0x11C0]; /* 0x11C0 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 293 | /* CPU register save area: defined by architecture */ |
| 294 | __u64 floating_pt_save_area[16]; /* 0x1200 */ |
| 295 | __u64 gpregs_save_area[16]; /* 0x1280 */ |
Heiko Carstens | cbb870c | 2010-02-26 22:37:43 +0100 | [diff] [blame] | 296 | psw_t psw_save_area; /* 0x1300 */ |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 297 | __u8 pad_0x1310[0x1318-0x1310]; /* 0x1310 */ |
| 298 | __u32 prefixreg_save_area; /* 0x1318 */ |
| 299 | __u32 fpt_creg_save_area; /* 0x131c */ |
| 300 | __u8 pad_0x1320[0x1324-0x1320]; /* 0x1320 */ |
| 301 | __u32 tod_progreg_save_area; /* 0x1324 */ |
| 302 | __u32 cpu_timer_save_area[2]; /* 0x1328 */ |
| 303 | __u32 clock_comp_save_area[2]; /* 0x1330 */ |
| 304 | __u8 pad_0x1338[0x1340-0x1338]; /* 0x1338 */ |
| 305 | __u32 access_regs_save_area[16]; /* 0x1340 */ |
| 306 | __u64 cregs_save_area[16]; /* 0x1380 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | |
| 308 | /* align to the top of the prefix area */ |
Martin Schwidefsky | 866ba28 | 2009-03-26 15:24:44 +0100 | [diff] [blame] | 309 | __u8 pad_0x1400[0x2000-0x1400]; /* 0x1400 */ |
Heiko Carstens | cbb870c | 2010-02-26 22:37:43 +0100 | [diff] [blame] | 310 | } __packed; |
| 311 | |
| 312 | #endif /* CONFIG_32BIT */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | |
| 314 | #define S390_lowcore (*((struct _lowcore *) 0)) |
Heiko Carstens | cbb870c | 2010-02-26 22:37:43 +0100 | [diff] [blame] | 315 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | extern struct _lowcore *lowcore_ptr[]; |
| 317 | |
Adrian Bunk | 4448aaf | 2005-11-08 21:34:42 -0800 | [diff] [blame] | 318 | static inline void set_prefix(__u32 address) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | { |
Martin Schwidefsky | 94c12cc | 2006-09-28 16:56:43 +0200 | [diff] [blame] | 320 | asm volatile("spx %0" : : "m" (address) : "memory"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | } |
| 322 | |
Heiko Carstens | 15e9b58 | 2006-12-04 15:40:26 +0100 | [diff] [blame] | 323 | static inline __u32 store_prefix(void) |
| 324 | { |
| 325 | __u32 address; |
| 326 | |
| 327 | asm volatile("stpx %0" : "=m" (address)); |
| 328 | return address; |
| 329 | } |
| 330 | |
Heiko Carstens | cbb870c | 2010-02-26 22:37:43 +0100 | [diff] [blame] | 331 | #endif /* _ASM_S390_LOWCORE_H */ |