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209 lines
6.4 KiB
209 lines
6.4 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* Copyright IBM Corp. 1999, 2012 |
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* Author(s): Hartmut Penner <[email protected]>, |
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* Martin Schwidefsky <[email protected]>, |
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* Denis Joseph Barrow, |
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*/ |
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#ifndef _ASM_S390_LOWCORE_H |
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#define _ASM_S390_LOWCORE_H |
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#include <linux/types.h> |
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#include <asm/ptrace.h> |
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#include <asm/cpu.h> |
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#include <asm/types.h> |
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#define LC_ORDER 1 |
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#define LC_PAGES 2 |
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struct lowcore { |
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__u8 pad_0x0000[0x0014-0x0000]; /* 0x0000 */ |
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__u32 ipl_parmblock_ptr; /* 0x0014 */ |
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__u8 pad_0x0018[0x0080-0x0018]; /* 0x0018 */ |
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__u32 ext_params; /* 0x0080 */ |
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__u16 ext_cpu_addr; /* 0x0084 */ |
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__u16 ext_int_code; /* 0x0086 */ |
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__u16 svc_ilc; /* 0x0088 */ |
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__u16 svc_code; /* 0x008a */ |
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__u16 pgm_ilc; /* 0x008c */ |
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__u16 pgm_code; /* 0x008e */ |
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__u32 data_exc_code; /* 0x0090 */ |
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__u16 mon_class_num; /* 0x0094 */ |
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__u8 per_code; /* 0x0096 */ |
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__u8 per_atmid; /* 0x0097 */ |
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__u64 per_address; /* 0x0098 */ |
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__u8 exc_access_id; /* 0x00a0 */ |
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__u8 per_access_id; /* 0x00a1 */ |
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__u8 op_access_id; /* 0x00a2 */ |
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__u8 ar_mode_id; /* 0x00a3 */ |
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__u8 pad_0x00a4[0x00a8-0x00a4]; /* 0x00a4 */ |
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__u64 trans_exc_code; /* 0x00a8 */ |
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__u64 monitor_code; /* 0x00b0 */ |
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__u16 subchannel_id; /* 0x00b8 */ |
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__u16 subchannel_nr; /* 0x00ba */ |
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__u32 io_int_parm; /* 0x00bc */ |
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__u32 io_int_word; /* 0x00c0 */ |
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__u8 pad_0x00c4[0x00c8-0x00c4]; /* 0x00c4 */ |
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__u32 stfl_fac_list; /* 0x00c8 */ |
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__u8 pad_0x00cc[0x00e8-0x00cc]; /* 0x00cc */ |
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__u64 mcck_interruption_code; /* 0x00e8 */ |
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__u8 pad_0x00f0[0x00f4-0x00f0]; /* 0x00f0 */ |
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__u32 external_damage_code; /* 0x00f4 */ |
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__u64 failing_storage_address; /* 0x00f8 */ |
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__u8 pad_0x0100[0x0110-0x0100]; /* 0x0100 */ |
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__u64 breaking_event_addr; /* 0x0110 */ |
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__u8 pad_0x0118[0x0120-0x0118]; /* 0x0118 */ |
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psw_t restart_old_psw; /* 0x0120 */ |
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psw_t external_old_psw; /* 0x0130 */ |
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psw_t svc_old_psw; /* 0x0140 */ |
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psw_t program_old_psw; /* 0x0150 */ |
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psw_t mcck_old_psw; /* 0x0160 */ |
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psw_t io_old_psw; /* 0x0170 */ |
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__u8 pad_0x0180[0x01a0-0x0180]; /* 0x0180 */ |
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psw_t restart_psw; /* 0x01a0 */ |
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psw_t external_new_psw; /* 0x01b0 */ |
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psw_t svc_new_psw; /* 0x01c0 */ |
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psw_t program_new_psw; /* 0x01d0 */ |
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psw_t mcck_new_psw; /* 0x01e0 */ |
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psw_t io_new_psw; /* 0x01f0 */ |
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/* Save areas. */ |
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__u64 save_area_sync[8]; /* 0x0200 */ |
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__u64 save_area_async[8]; /* 0x0240 */ |
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__u64 save_area_restart[1]; /* 0x0280 */ |
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/* CPU flags. */ |
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__u64 cpu_flags; /* 0x0288 */ |
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/* Return psws. */ |
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psw_t return_psw; /* 0x0290 */ |
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psw_t return_mcck_psw; /* 0x02a0 */ |
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/* CPU accounting and timing values. */ |
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__u64 sys_enter_timer; /* 0x02b0 */ |
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__u8 pad_0x02b8[0x02c0-0x02b8]; /* 0x02b8 */ |
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__u64 mcck_enter_timer; /* 0x02c0 */ |
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__u64 exit_timer; /* 0x02c8 */ |
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__u64 user_timer; /* 0x02d0 */ |
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__u64 guest_timer; /* 0x02d8 */ |
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__u64 system_timer; /* 0x02e0 */ |
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__u64 hardirq_timer; /* 0x02e8 */ |
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__u64 softirq_timer; /* 0x02f0 */ |
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__u64 steal_timer; /* 0x02f8 */ |
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__u64 avg_steal_timer; /* 0x0300 */ |
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__u64 last_update_timer; /* 0x0308 */ |
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__u64 last_update_clock; /* 0x0310 */ |
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__u64 int_clock; /* 0x0318*/ |
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__u64 mcck_clock; /* 0x0320 */ |
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__u64 clock_comparator; /* 0x0328 */ |
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__u64 boot_clock[2]; /* 0x0330 */ |
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/* Current process. */ |
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__u64 current_task; /* 0x0340 */ |
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__u64 kernel_stack; /* 0x0348 */ |
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/* Interrupt, DAT-off and restartstack. */ |
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__u64 async_stack; /* 0x0350 */ |
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__u64 nodat_stack; /* 0x0358 */ |
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__u64 restart_stack; /* 0x0360 */ |
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__u64 mcck_stack; /* 0x0368 */ |
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/* Restart function and parameter. */ |
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__u64 restart_fn; /* 0x0370 */ |
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__u64 restart_data; /* 0x0378 */ |
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__u64 restart_source; /* 0x0380 */ |
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/* Address space pointer. */ |
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__u64 kernel_asce; /* 0x0388 */ |
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__u64 user_asce; /* 0x0390 */ |
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/* |
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* The lpp and current_pid fields form a |
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* 64-bit value that is set as program |
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* parameter with the LPP instruction. |
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*/ |
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__u32 lpp; /* 0x0398 */ |
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__u32 current_pid; /* 0x039c */ |
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/* SMP info area */ |
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__u32 cpu_nr; /* 0x03a0 */ |
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__u32 softirq_pending; /* 0x03a4 */ |
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__s32 preempt_count; /* 0x03a8 */ |
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__u32 spinlock_lockval; /* 0x03ac */ |
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__u32 spinlock_index; /* 0x03b0 */ |
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__u32 fpu_flags; /* 0x03b4 */ |
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__u64 percpu_offset; /* 0x03b8 */ |
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__u8 pad_0x03c0[0x03c8-0x03c0]; /* 0x03c0 */ |
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__u64 machine_flags; /* 0x03c8 */ |
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__u64 gmap; /* 0x03d0 */ |
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__u8 pad_0x03d8[0x0400-0x03d8]; /* 0x03d8 */ |
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/* br %r1 trampoline */ |
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__u16 br_r1_trampoline; /* 0x0400 */ |
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__u32 return_lpswe; /* 0x0402 */ |
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__u32 return_mcck_lpswe; /* 0x0406 */ |
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__u8 pad_0x040a[0x0e00-0x040a]; /* 0x040a */ |
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/* |
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* 0xe00 contains the address of the IPL Parameter Information |
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* block. Dump tools need IPIB for IPL after dump. |
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* Note: do not change the position of any fields in 0x0e00-0x0f00 |
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*/ |
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__u64 ipib; /* 0x0e00 */ |
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__u32 ipib_checksum; /* 0x0e08 */ |
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__u64 vmcore_info; /* 0x0e0c */ |
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__u8 pad_0x0e14[0x0e18-0x0e14]; /* 0x0e14 */ |
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__u64 os_info; /* 0x0e18 */ |
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__u8 pad_0x0e20[0x0f00-0x0e20]; /* 0x0e20 */ |
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/* Extended facility list */ |
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__u64 stfle_fac_list[16]; /* 0x0f00 */ |
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__u64 alt_stfle_fac_list[16]; /* 0x0f80 */ |
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__u8 pad_0x1000[0x11b0-0x1000]; /* 0x1000 */ |
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/* Pointer to the machine check extended save area */ |
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__u64 mcesad; /* 0x11b0 */ |
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/* 64 bit extparam used for pfault/diag 250: defined by architecture */ |
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__u64 ext_params2; /* 0x11B8 */ |
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__u8 pad_0x11c0[0x1200-0x11C0]; /* 0x11C0 */ |
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/* CPU register save area: defined by architecture */ |
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__u64 floating_pt_save_area[16]; /* 0x1200 */ |
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__u64 gpregs_save_area[16]; /* 0x1280 */ |
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psw_t psw_save_area; /* 0x1300 */ |
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__u8 pad_0x1310[0x1318-0x1310]; /* 0x1310 */ |
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__u32 prefixreg_save_area; /* 0x1318 */ |
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__u32 fpt_creg_save_area; /* 0x131c */ |
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__u8 pad_0x1320[0x1324-0x1320]; /* 0x1320 */ |
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__u32 tod_progreg_save_area; /* 0x1324 */ |
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__u32 cpu_timer_save_area[2]; /* 0x1328 */ |
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__u32 clock_comp_save_area[2]; /* 0x1330 */ |
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__u8 pad_0x1338[0x1340-0x1338]; /* 0x1338 */ |
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__u32 access_regs_save_area[16]; /* 0x1340 */ |
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__u64 cregs_save_area[16]; /* 0x1380 */ |
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__u8 pad_0x1400[0x1800-0x1400]; /* 0x1400 */ |
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/* Transaction abort diagnostic block */ |
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__u8 pgm_tdb[256]; /* 0x1800 */ |
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__u8 pad_0x1900[0x2000-0x1900]; /* 0x1900 */ |
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} __packed __aligned(8192); |
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#define S390_lowcore (*((struct lowcore *) 0)) |
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extern struct lowcore *lowcore_ptr[]; |
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static inline void set_prefix(__u32 address) |
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{ |
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asm volatile("spx %0" : : "Q" (address) : "memory"); |
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} |
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static inline __u32 store_prefix(void) |
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{ |
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__u32 address; |
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asm volatile("stpx %0" : "=Q" (address)); |
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return address; |
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} |
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#endif /* _ASM_S390_LOWCORE_H */
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