| /* |
| * Copyright IBM Corp. 1999,2010 |
| * Author(s): Hartmut Penner <hp@de.ibm.com>, |
| * Martin Schwidefsky <schwidefsky@de.ibm.com>, |
| * Denis Joseph Barrow, |
| */ |
| |
| #ifndef _ASM_S390_LOWCORE_H |
| #define _ASM_S390_LOWCORE_H |
| |
| #include <linux/types.h> |
| #include <asm/ptrace.h> |
| #include <asm/cpu.h> |
| |
| void restart_int_handler(void); |
| void ext_int_handler(void); |
| void system_call(void); |
| void pgm_check_handler(void); |
| void mcck_int_handler(void); |
| void io_int_handler(void); |
| |
| #ifdef CONFIG_32BIT |
| |
| #define LC_ORDER 0 |
| #define LC_PAGES 1 |
| |
| struct save_area { |
| u32 ext_save; |
| u64 timer; |
| u64 clk_cmp; |
| u8 pad1[24]; |
| u8 psw[8]; |
| u32 pref_reg; |
| u8 pad2[20]; |
| u32 acc_regs[16]; |
| u64 fp_regs[4]; |
| u32 gp_regs[16]; |
| u32 ctrl_regs[16]; |
| } __packed; |
| |
| struct _lowcore { |
| psw_t restart_psw; /* 0x0000 */ |
| psw_t restart_old_psw; /* 0x0008 */ |
| __u8 pad_0x0010[0x0014-0x0010]; /* 0x0010 */ |
| __u32 ipl_parmblock_ptr; /* 0x0014 */ |
| psw_t external_old_psw; /* 0x0018 */ |
| psw_t svc_old_psw; /* 0x0020 */ |
| psw_t program_old_psw; /* 0x0028 */ |
| psw_t mcck_old_psw; /* 0x0030 */ |
| psw_t io_old_psw; /* 0x0038 */ |
| __u8 pad_0x0040[0x0058-0x0040]; /* 0x0040 */ |
| psw_t external_new_psw; /* 0x0058 */ |
| psw_t svc_new_psw; /* 0x0060 */ |
| psw_t program_new_psw; /* 0x0068 */ |
| psw_t mcck_new_psw; /* 0x0070 */ |
| psw_t io_new_psw; /* 0x0078 */ |
| __u32 ext_params; /* 0x0080 */ |
| __u16 cpu_addr; /* 0x0084 */ |
| __u16 ext_int_code; /* 0x0086 */ |
| __u16 svc_ilc; /* 0x0088 */ |
| __u16 svc_code; /* 0x008a */ |
| __u16 pgm_ilc; /* 0x008c */ |
| __u16 pgm_code; /* 0x008e */ |
| __u32 trans_exc_code; /* 0x0090 */ |
| __u16 mon_class_num; /* 0x0094 */ |
| __u16 per_perc_atmid; /* 0x0096 */ |
| __u32 per_address; /* 0x0098 */ |
| __u32 monitor_code; /* 0x009c */ |
| __u8 exc_access_id; /* 0x00a0 */ |
| __u8 per_access_id; /* 0x00a1 */ |
| __u8 op_access_id; /* 0x00a2 */ |
| __u8 ar_access_id; /* 0x00a3 */ |
| __u8 pad_0x00a4[0x00b8-0x00a4]; /* 0x00a4 */ |
| __u16 subchannel_id; /* 0x00b8 */ |
| __u16 subchannel_nr; /* 0x00ba */ |
| __u32 io_int_parm; /* 0x00bc */ |
| __u32 io_int_word; /* 0x00c0 */ |
| __u8 pad_0x00c4[0x00c8-0x00c4]; /* 0x00c4 */ |
| __u32 stfl_fac_list; /* 0x00c8 */ |
| __u8 pad_0x00cc[0x00d4-0x00cc]; /* 0x00cc */ |
| __u32 extended_save_area_addr; /* 0x00d4 */ |
| __u32 cpu_timer_save_area[2]; /* 0x00d8 */ |
| __u32 clock_comp_save_area[2]; /* 0x00e0 */ |
| __u32 mcck_interruption_code[2]; /* 0x00e8 */ |
| __u8 pad_0x00f0[0x00f4-0x00f0]; /* 0x00f0 */ |
| __u32 external_damage_code; /* 0x00f4 */ |
| __u32 failing_storage_address; /* 0x00f8 */ |
| __u8 pad_0x00fc[0x0100-0x00fc]; /* 0x00fc */ |
| psw_t psw_save_area; /* 0x0100 */ |
| __u32 prefixreg_save_area; /* 0x0108 */ |
| __u8 pad_0x010c[0x0120-0x010c]; /* 0x010c */ |
| |
| /* CPU register save area: defined by architecture */ |
| __u32 access_regs_save_area[16]; /* 0x0120 */ |
| __u32 floating_pt_save_area[8]; /* 0x0160 */ |
| __u32 gpregs_save_area[16]; /* 0x0180 */ |
| __u32 cregs_save_area[16]; /* 0x01c0 */ |
| |
| /* Return psws. */ |
| __u32 save_area[16]; /* 0x0200 */ |
| psw_t return_psw; /* 0x0240 */ |
| psw_t return_mcck_psw; /* 0x0248 */ |
| |
| /* CPU time accounting values */ |
| __u64 sync_enter_timer; /* 0x0250 */ |
| __u64 async_enter_timer; /* 0x0258 */ |
| __u64 mcck_enter_timer; /* 0x0260 */ |
| __u64 exit_timer; /* 0x0268 */ |
| __u64 user_timer; /* 0x0270 */ |
| __u64 system_timer; /* 0x0278 */ |
| __u64 steal_timer; /* 0x0280 */ |
| __u64 last_update_timer; /* 0x0288 */ |
| __u64 last_update_clock; /* 0x0290 */ |
| |
| /* Current process. */ |
| __u32 current_task; /* 0x0298 */ |
| __u32 thread_info; /* 0x029c */ |
| __u32 kernel_stack; /* 0x02a0 */ |
| |
| /* Interrupt and panic stack. */ |
| __u32 async_stack; /* 0x02a4 */ |
| __u32 panic_stack; /* 0x02a8 */ |
| |
| /* Address space pointer. */ |
| __u32 kernel_asce; /* 0x02ac */ |
| __u32 user_asce; /* 0x02b0 */ |
| __u32 user_exec_asce; /* 0x02b4 */ |
| |
| /* SMP info area */ |
| __u32 cpu_nr; /* 0x02b8 */ |
| __u32 softirq_pending; /* 0x02bc */ |
| __u32 percpu_offset; /* 0x02c0 */ |
| __u32 ext_call_fast; /* 0x02c4 */ |
| __u64 int_clock; /* 0x02c8 */ |
| __u64 mcck_clock; /* 0x02d0 */ |
| __u64 clock_comparator; /* 0x02d8 */ |
| __u32 machine_flags; /* 0x02e0 */ |
| __u32 ftrace_func; /* 0x02e4 */ |
| __u8 pad_0x02e8[0x0300-0x02e8]; /* 0x02e8 */ |
| |
| /* Interrupt response block */ |
| __u8 irb[64]; /* 0x0300 */ |
| |
| __u8 pad_0x0340[0x0e00-0x0340]; /* 0x0340 */ |
| |
| /* |
| * 0xe00 contains the address of the IPL Parameter Information |
| * block. Dump tools need IPIB for IPL after dump. |
| * Note: do not change the position of any fields in 0x0e00-0x0f00 |
| */ |
| __u32 ipib; /* 0x0e00 */ |
| __u32 ipib_checksum; /* 0x0e04 */ |
| |
| /* Align to the top 1k of prefix area */ |
| __u8 pad_0x0e08[0x1000-0x0e08]; /* 0x0e08 */ |
| } __packed; |
| |
| #else /* CONFIG_32BIT */ |
| |
| #define LC_ORDER 1 |
| #define LC_PAGES 2 |
| |
| struct save_area { |
| u64 fp_regs[16]; |
| u64 gp_regs[16]; |
| u8 psw[16]; |
| u8 pad1[8]; |
| u32 pref_reg; |
| u32 fp_ctrl_reg; |
| u8 pad2[4]; |
| u32 tod_reg; |
| u64 timer; |
| u64 clk_cmp; |
| u8 pad3[8]; |
| u32 acc_regs[16]; |
| u64 ctrl_regs[16]; |
| } __packed; |
| |
| struct _lowcore { |
| __u8 pad_0x0000[0x0014-0x0000]; /* 0x0000 */ |
| __u32 ipl_parmblock_ptr; /* 0x0014 */ |
| __u8 pad_0x0018[0x0080-0x0018]; /* 0x0018 */ |
| __u32 ext_params; /* 0x0080 */ |
| __u16 cpu_addr; /* 0x0084 */ |
| __u16 ext_int_code; /* 0x0086 */ |
| __u16 svc_ilc; /* 0x0088 */ |
| __u16 svc_code; /* 0x008a */ |
| __u16 pgm_ilc; /* 0x008c */ |
| __u16 pgm_code; /* 0x008e */ |
| __u32 data_exc_code; /* 0x0090 */ |
| __u16 mon_class_num; /* 0x0094 */ |
| __u16 per_perc_atmid; /* 0x0096 */ |
| __u64 per_address; /* 0x0098 */ |
| __u8 exc_access_id; /* 0x00a0 */ |
| __u8 per_access_id; /* 0x00a1 */ |
| __u8 op_access_id; /* 0x00a2 */ |
| __u8 ar_access_id; /* 0x00a3 */ |
| __u8 pad_0x00a4[0x00a8-0x00a4]; /* 0x00a4 */ |
| __u64 trans_exc_code; /* 0x00a8 */ |
| __u64 monitor_code; /* 0x00b0 */ |
| __u16 subchannel_id; /* 0x00b8 */ |
| __u16 subchannel_nr; /* 0x00ba */ |
| __u32 io_int_parm; /* 0x00bc */ |
| __u32 io_int_word; /* 0x00c0 */ |
| __u8 pad_0x00c4[0x00c8-0x00c4]; /* 0x00c4 */ |
| __u32 stfl_fac_list; /* 0x00c8 */ |
| __u8 pad_0x00cc[0x00e8-0x00cc]; /* 0x00cc */ |
| __u32 mcck_interruption_code[2]; /* 0x00e8 */ |
| __u8 pad_0x00f0[0x00f4-0x00f0]; /* 0x00f0 */ |
| __u32 external_damage_code; /* 0x00f4 */ |
| __u64 failing_storage_address; /* 0x00f8 */ |
| __u8 pad_0x0100[0x0110-0x0100]; /* 0x0100 */ |
| __u64 breaking_event_addr; /* 0x0110 */ |
| __u8 pad_0x0118[0x0120-0x0118]; /* 0x0118 */ |
| psw_t restart_old_psw; /* 0x0120 */ |
| psw_t external_old_psw; /* 0x0130 */ |
| psw_t svc_old_psw; /* 0x0140 */ |
| psw_t program_old_psw; /* 0x0150 */ |
| psw_t mcck_old_psw; /* 0x0160 */ |
| psw_t io_old_psw; /* 0x0170 */ |
| __u8 pad_0x0180[0x01a0-0x0180]; /* 0x0180 */ |
| psw_t restart_psw; /* 0x01a0 */ |
| psw_t external_new_psw; /* 0x01b0 */ |
| psw_t svc_new_psw; /* 0x01c0 */ |
| psw_t program_new_psw; /* 0x01d0 */ |
| psw_t mcck_new_psw; /* 0x01e0 */ |
| psw_t io_new_psw; /* 0x01f0 */ |
| |
| /* Entry/exit save area & return psws. */ |
| __u64 save_area[16]; /* 0x0200 */ |
| psw_t return_psw; /* 0x0280 */ |
| psw_t return_mcck_psw; /* 0x0290 */ |
| |
| /* CPU accounting and timing values. */ |
| __u64 sync_enter_timer; /* 0x02a0 */ |
| __u64 async_enter_timer; /* 0x02a8 */ |
| __u64 mcck_enter_timer; /* 0x02b0 */ |
| __u64 exit_timer; /* 0x02b8 */ |
| __u64 user_timer; /* 0x02c0 */ |
| __u64 system_timer; /* 0x02c8 */ |
| __u64 steal_timer; /* 0x02d0 */ |
| __u64 last_update_timer; /* 0x02d8 */ |
| __u64 last_update_clock; /* 0x02e0 */ |
| |
| /* Current process. */ |
| __u64 current_task; /* 0x02e8 */ |
| __u64 thread_info; /* 0x02f0 */ |
| __u64 kernel_stack; /* 0x02f8 */ |
| |
| /* Interrupt and panic stack. */ |
| __u64 async_stack; /* 0x0300 */ |
| __u64 panic_stack; /* 0x0308 */ |
| |
| /* Address space pointer. */ |
| __u64 kernel_asce; /* 0x0310 */ |
| __u64 user_asce; /* 0x0318 */ |
| __u64 user_exec_asce; /* 0x0320 */ |
| |
| /* SMP info area */ |
| __u32 cpu_nr; /* 0x0328 */ |
| __u32 softirq_pending; /* 0x032c */ |
| __u64 percpu_offset; /* 0x0330 */ |
| __u64 ext_call_fast; /* 0x0338 */ |
| __u64 int_clock; /* 0x0340 */ |
| __u64 mcck_clock; /* 0x0348 */ |
| __u64 clock_comparator; /* 0x0350 */ |
| __u64 vdso_per_cpu_data; /* 0x0358 */ |
| __u64 machine_flags; /* 0x0360 */ |
| __u64 ftrace_func; /* 0x0368 */ |
| __u64 sie_hook; /* 0x0370 */ |
| __u64 cmf_hpp; /* 0x0378 */ |
| |
| /* Interrupt response block. */ |
| __u8 irb[64]; /* 0x0380 */ |
| |
| /* Per cpu primary space access list */ |
| __u32 paste[16]; /* 0x03c0 */ |
| |
| __u8 pad_0x0400[0x0e00-0x0400]; /* 0x0400 */ |
| |
| /* |
| * 0xe00 contains the address of the IPL Parameter Information |
| * block. Dump tools need IPIB for IPL after dump. |
| * Note: do not change the position of any fields in 0x0e00-0x0f00 |
| */ |
| __u64 ipib; /* 0x0e00 */ |
| __u32 ipib_checksum; /* 0x0e08 */ |
| __u8 pad_0x0e0c[0x11b8-0x0e0c]; /* 0x0e0c */ |
| |
| /* 64 bit extparam used for pfault/diag 250: defined by architecture */ |
| __u64 ext_params2; /* 0x11B8 */ |
| __u8 pad_0x11c0[0x1200-0x11C0]; /* 0x11C0 */ |
| |
| /* CPU register save area: defined by architecture */ |
| __u64 floating_pt_save_area[16]; /* 0x1200 */ |
| __u64 gpregs_save_area[16]; /* 0x1280 */ |
| psw_t psw_save_area; /* 0x1300 */ |
| __u8 pad_0x1310[0x1318-0x1310]; /* 0x1310 */ |
| __u32 prefixreg_save_area; /* 0x1318 */ |
| __u32 fpt_creg_save_area; /* 0x131c */ |
| __u8 pad_0x1320[0x1324-0x1320]; /* 0x1320 */ |
| __u32 tod_progreg_save_area; /* 0x1324 */ |
| __u32 cpu_timer_save_area[2]; /* 0x1328 */ |
| __u32 clock_comp_save_area[2]; /* 0x1330 */ |
| __u8 pad_0x1338[0x1340-0x1338]; /* 0x1338 */ |
| __u32 access_regs_save_area[16]; /* 0x1340 */ |
| __u64 cregs_save_area[16]; /* 0x1380 */ |
| |
| /* align to the top of the prefix area */ |
| __u8 pad_0x1400[0x2000-0x1400]; /* 0x1400 */ |
| } __packed; |
| |
| #endif /* CONFIG_32BIT */ |
| |
| #define S390_lowcore (*((struct _lowcore *) 0)) |
| |
| extern struct _lowcore *lowcore_ptr[]; |
| |
| static inline void set_prefix(__u32 address) |
| { |
| asm volatile("spx %0" : : "m" (address) : "memory"); |
| } |
| |
| static inline __u32 store_prefix(void) |
| { |
| __u32 address; |
| |
| asm volatile("stpx %0" : "=m" (address)); |
| return address; |
| } |
| |
| #endif /* _ASM_S390_LOWCORE_H */ |
