| /* |
| * include/asm-s390/lowcore.h |
| * |
| * S390 version |
| * Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation |
| * Author(s): Hartmut Penner (hp@de.ibm.com), |
| * Martin Schwidefsky (schwidefsky@de.ibm.com), |
| * Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com) |
| */ |
| |
| #ifndef _ASM_S390_LOWCORE_H |
| #define _ASM_S390_LOWCORE_H |
| |
| #define __LC_EXT_OLD_PSW 0x018 |
| #define __LC_SVC_OLD_PSW 0x020 |
| #define __LC_PGM_OLD_PSW 0x028 |
| #define __LC_MCK_OLD_PSW 0x030 |
| #define __LC_IO_OLD_PSW 0x038 |
| #define __LC_EXT_NEW_PSW 0x058 |
| #define __LC_SVC_NEW_PSW 0x060 |
| #define __LC_PGM_NEW_PSW 0x068 |
| #define __LC_MCK_NEW_PSW 0x070 |
| #define __LC_IO_NEW_PSW 0x078 |
| #define __LC_EXT_PARAMS 0x080 |
| #define __LC_CPU_ADDRESS 0x084 |
| #define __LC_EXT_INT_CODE 0x086 |
| #define __LC_SVC_INT_CODE 0x08B |
| #define __LC_PGM_ILC 0x08C |
| #define __LC_PGM_INT_CODE 0x08E |
| #define __LC_TRANS_EXC_ADDR 0x090 |
| #define __LC_SUBCHANNEL_ID 0x0B8 |
| #define __LC_SUBCHANNEL_NR 0x0BA |
| #define __LC_IO_INT_PARM 0x0BC |
| #define __LC_IO_INT_WORD 0x0C0 |
| #define __LC_MCCK_CODE 0x0E8 |
| #define __LC_AREGS_SAVE_AREA 0x120 |
| #define __LC_CREGS_SAVE_AREA 0x1C0 |
| #define __LC_RETURN_PSW 0x200 |
| |
| #define __LC_SYNC_IO_WORD 0x400 |
| |
| #define __LC_SAVE_AREA 0xC00 |
| #define __LC_KERNEL_STACK 0xC40 |
| #define __LC_ASYNC_STACK 0xC44 |
| #define __LC_CPUID 0xC60 |
| #define __LC_CPUADDR 0xC68 |
| #define __LC_IPLDEV 0xC7C |
| |
| #define __LC_JIFFY_TIMER 0xC80 |
| #define __LC_INT_CLOCK 0xC88 |
| |
| #define __LC_PANIC_MAGIC 0xE00 |
| |
| #define __LC_PFAULT_INTPARM 0x080 |
| |
| /* interrupt handler start with all io, external and mcck interrupt disabled */ |
| |
| #define _RESTART_PSW_MASK 0x00080000 |
| #define _EXT_PSW_MASK 0x04080000 |
| #define _PGM_PSW_MASK 0x04080000 |
| #define _SVC_PSW_MASK 0x04080000 |
| #define _MCCK_PSW_MASK 0x04080000 |
| #define _IO_PSW_MASK 0x04080000 |
| #define _USER_PSW_MASK 0x070DC000/* DAT, IO, EXT, Home-space */ |
| #define _WAIT_PSW_MASK 0x070E0000/* DAT, IO, EXT, Wait, Home-space */ |
| #define _DW_PSW_MASK 0x000A0000/* disabled wait PSW mask */ |
| |
| #define _PRIMARY_MASK 0x0000 /* MASK for SACF */ |
| #define _SECONDARY_MASK 0x0100 /* MASK for SACF */ |
| #define _ACCESS_MASK 0x0200 /* MASK for SACF */ |
| #define _HOME_MASK 0x0300 /* MASK for SACF */ |
| |
| #define _PSW_PRIM_SPACE_MODE 0x00000000 |
| #define _PSW_SEC_SPACE_MODE 0x00008000 |
| #define _PSW_ACC_REG_MODE 0x00004000 |
| #define _PSW_HOME_SPACE_MODE 0x0000C000 |
| |
| #define _PSW_WAIT_MASK_BIT 0x00020000 /* Wait bit */ |
| #define _PSW_IO_MASK_BIT 0x02000000 /* IO bit */ |
| #define _PSW_IO_WAIT 0x02020000 /* IO & Wait bit */ |
| |
| /* we run in 31 Bit mode */ |
| #define _ADDR_31 0x80000000 |
| |
| #ifndef __ASSEMBLY__ |
| |
| #include <linux/config.h> |
| #include <asm/processor.h> |
| #include <linux/types.h> |
| #include <asm/atomic.h> |
| #include <asm/sigp.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); |
| |
| struct _lowcore |
| { |
| /* prefix area: defined by architecture */ |
| psw_t restart_psw; /* 0x000 */ |
| __u32 ccw2[4]; /* 0x008 */ |
| psw_t external_old_psw; /* 0x018 */ |
| psw_t svc_old_psw; /* 0x020 */ |
| psw_t program_old_psw; /* 0x028 */ |
| psw_t mcck_old_psw; /* 0x030 */ |
| psw_t io_old_psw; /* 0x038 */ |
| __u8 pad1[0x58-0x40]; /* 0x040 */ |
| psw_t external_new_psw; /* 0x058 */ |
| psw_t svc_new_psw; /* 0x060 */ |
| psw_t program_new_psw; /* 0x068 */ |
| psw_t mcck_new_psw; /* 0x070 */ |
| psw_t io_new_psw; /* 0x078 */ |
| __u32 ext_params; /* 0x080 */ |
| __u16 cpu_addr; /* 0x084 */ |
| __u16 ext_int_code; /* 0x086 */ |
| __u16 svc_ilc; /* 0x088 */ |
| __u16 svc_code; /* 0x08a */ |
| __u16 pgm_ilc; /* 0x08c */ |
| __u16 pgm_code; /* 0x08e */ |
| __u32 trans_exc_code; /* 0x090 */ |
| __u16 mon_class_num; /* 0x094 */ |
| __u16 per_perc_atmid; /* 0x096 */ |
| __u32 per_address; /* 0x098 */ |
| __u32 monitor_code; /* 0x09c */ |
| __u8 exc_access_id; /* 0x0a0 */ |
| __u8 per_access_id; /* 0x0a1 */ |
| __u8 pad2[0xB8-0xA2]; /* 0x0a2 */ |
| __u16 subchannel_id; /* 0x0b8 */ |
| __u16 subchannel_nr; /* 0x0ba */ |
| __u32 io_int_parm; /* 0x0bc */ |
| __u32 io_int_word; /* 0x0c0 */ |
| __u8 pad3[0xD8-0xC4]; /* 0x0c4 */ |
| __u32 cpu_timer_save_area[2]; /* 0x0d8 */ |
| __u32 clock_comp_save_area[2]; /* 0x0e0 */ |
| __u32 mcck_interruption_code[2]; /* 0x0e8 */ |
| __u8 pad4[0xf4-0xf0]; /* 0x0f0 */ |
| __u32 external_damage_code; /* 0x0f4 */ |
| __u32 failing_storage_address; /* 0x0f8 */ |
| __u8 pad5[0x100-0xfc]; /* 0x0fc */ |
| __u32 st_status_fixed_logout[4];/* 0x100 */ |
| __u8 pad6[0x120-0x110]; /* 0x110 */ |
| __u32 access_regs_save_area[16];/* 0x120 */ |
| __u32 floating_pt_save_area[8]; /* 0x160 */ |
| __u32 gpregs_save_area[16]; /* 0x180 */ |
| __u32 cregs_save_area[16]; /* 0x240 */ |
| |
| psw_t return_psw; /* 0x200 */ |
| __u8 pad8[0x400-0x208]; /* 0x208 */ |
| |
| __u32 sync_io_word; /* 0x400 */ |
| |
| __u8 pad9[0xc00-0x404]; /* 0x404 */ |
| |
| /* System info area */ |
| __u32 save_area[16]; /* 0xc00 */ |
| __u32 kernel_stack; /* 0xc40 */ |
| __u32 async_stack; /* 0xc44 */ |
| /* entry.S sensitive area start */ |
| __u8 pad10[0xc60-0xc48]; /* 0xc5c */ |
| struct cpuinfo_S390 cpu_data; /* 0xc60 */ |
| __u32 ipl_device; /* 0xc7c */ |
| /* entry.S sensitive area end */ |
| |
| /* SMP info area: defined by DJB */ |
| __u64 jiffy_timer; /* 0xc80 */ |
| __u64 int_clock; /* 0xc88 */ |
| atomic_t ext_call_fast; /* 0xc90 */ |
| __u8 pad11[0xe00-0xc94]; /* 0xc94 */ |
| |
| /* 0xe00 is used as indicator for dump tools */ |
| /* whether the kernel died with panic() or not */ |
| __u32 panic_magic; /* 0xe00 */ |
| |
| /* Align to the top 1k of prefix area */ |
| __u8 pad12[0x1000-0xe04]; /* 0xe04 */ |
| } __attribute__((packed)); /* End structure*/ |
| |
| extern __inline__ void set_prefix(__u32 address) |
| { |
| __asm__ __volatile__ ("spx %0" : : "m" (address) : "memory" ); |
| } |
| |
| #define S390_lowcore (*((struct _lowcore *) 0)) |
| extern struct _lowcore *lowcore_ptr[]; |
| |
| #ifndef CONFIG_SMP |
| #define get_cpu_lowcore(cpu) (&S390_lowcore) |
| #define safe_get_cpu_lowcore(cpu) (&S390_lowcore) |
| #else |
| #define get_cpu_lowcore(cpu) (lowcore_ptr[(cpu)]) |
| #define safe_get_cpu_lowcore(cpu) \ |
| ((cpu) == smp_processor_id() ? &S390_lowcore : lowcore_ptr[(cpu)]) |
| #endif |
| #endif /* __ASSEMBLY__ */ |
| |
| #define __PANIC_MAGIC 0xDEADC0DE |
| |
| #endif |
| |
