English
- /*
- * include/asm-s390/lowcore.h
- *
- * S390 version
- * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Hartmut Penner (hpenner@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 0x0130
- #define __LC_SVC_OLD_PSW 0x0140
- #define __LC_PGM_OLD_PSW 0x0150
- #define __LC_MCK_OLD_PSW 0x0160
- #define __LC_IO_OLD_PSW 0x0170
- #define __LC_EXT_NEW_PSW 0x01b0
- #define __LC_SVC_NEW_PSW 0x01c0
- #define __LC_PGM_NEW_PSW 0x01d0
- #define __LC_MCK_NEW_PSW 0x01e0
- #define __LC_IO_NEW_PSW 0x01f0
- #define __LC_RETURN_PSW 0x0200
- #define __LC_SYNC_IO_WORD 0x0210
- #define __LC_EXT_PARAMS 0x080
- #define __LC_CPU_ADDRESS 0x084
- #define __LC_EXT_INT_CODE 0x086
- #define __LC_SVC_ILC 0x088
- #define __LC_SVC_INT_CODE 0x08A
- #define __LC_PGM_ILC 0x08C
- #define __LC_PGM_INT_CODE 0x08E
- #define __LC_TRANS_EXC_ADDR 0x0a8
- #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_SAVE_AREA 0xC00
- #define __LC_KERNEL_STACK 0xD40
- #define __LC_ASYNC_STACK 0xD48
- #define __LC_CPUID 0xD90
- #define __LC_CPUADDR 0xD98
- #define __LC_IPLDEV 0xDB8
- #define __LC_JIFFY_TIMER 0xDC0
- #define __LC_PANIC_MAGIC 0xE00
- #define __LC_AREGS_SAVE_AREA 0x1340
- #define __LC_CREGS_SAVE_AREA 0x1380
- #define __LC_PFAULT_INTPARM 0x11B8
- /* interrupt handler start with all io, external and mcck interrupt disabled */
- #define _RESTART_PSW_MASK 0x0000000180000000
- #define _EXT_PSW_MASK 0x0400000180000000
- #define _PGM_PSW_MASK 0x0400000180000000
- #define _SVC_PSW_MASK 0x0400000180000000
- #define _MCCK_PSW_MASK 0x0400000180000000
- #define _IO_PSW_MASK 0x0400000180000000
- #define _USER_PSW_MASK 0x0701C00180000000
- #define _WAIT_PSW_MASK 0x0706000180000000
- #define _DW_PSW_MASK 0x0002000180000000
- #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 0x0000000000000000
- #define _PSW_SEC_SPACE_MODE 0x0000800000000000
- #define _PSW_ACC_REG_MODE 0x0000400000000000
- #define _PSW_HOME_SPACE_MODE 0x0000C00000000000
- #define _PSW_WAIT_MASK_BIT 0x0002000000000000
- #define _PSW_IO_MASK_BIT 0x0200000000000000
- #define _PSW_IO_WAIT 0x0202000000000000
- #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 */
- __u32 ccw1[2]; /* 0x000 */
- __u32 ccw2[4]; /* 0x008 */
- __u8 pad1[0x80-0x18]; /* 0x018 */
- __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 data_exc_code; /* 0x090 */
- __u16 mon_class_num; /* 0x094 */
- __u16 per_perc_atmid; /* 0x096 */
- addr_t per_address; /* 0x098 */
- __u8 exc_access_id; /* 0x0a0 */
- __u8 per_access_id; /* 0x0a1 */
- __u8 op_access_id; /* 0x0a2 */
- __u8 ar_access_id; /* 0x0a3 */
- __u8 pad2[0xA8-0xA4]; /* 0x0a4 */
- addr_t trans_exc_code; /* 0x0A0 */
- addr_t monitor_code; /* 0x09c */
- __u16 subchannel_id; /* 0x0b8 */
- __u16 subchannel_nr; /* 0x0ba */
- __u32 io_int_parm; /* 0x0bc */
- __u32 io_int_word; /* 0x0c0 */
- __u8 pad3[0xc8-0xc4]; /* 0x0c4 */
- __u32 stfl_fac_list; /* 0x0c8 */
- __u8 pad4[0xe8-0xcc]; /* 0x0cc */
- __u32 mcck_interruption_code[2]; /* 0x0e8 */
- __u8 pad5[0xf4-0xf0]; /* 0x0f0 */
- __u32 external_damage_code; /* 0x0f4 */
- addr_t failing_storage_address; /* 0x0f8 */
- __u8 pad6[0x120-0x100]; /* 0x100 */
- psw_t restart_old_psw; /* 0x120 */
- psw_t external_old_psw; /* 0x130 */
- psw_t svc_old_psw; /* 0x140 */
- psw_t program_old_psw; /* 0x150 */
- psw_t mcck_old_psw; /* 0x160 */
- psw_t io_old_psw; /* 0x170 */
- __u8 pad7[0x1a0-0x180]; /* 0x180 */
- psw_t restart_psw; /* 0x1a0 */
- psw_t external_new_psw; /* 0x1b0 */
- psw_t svc_new_psw; /* 0x1c0 */
- psw_t program_new_psw; /* 0x1d0 */
- psw_t mcck_new_psw; /* 0x1e0 */
- psw_t io_new_psw; /* 0x1f0 */
- psw_t return_psw; /* 0x200 */
- __u32 sync_io_word; /* 0x210 */
- __u8 pad8[0xc00-0x214]; /* 0x214 */
- /* System info area */
- __u64 save_area[16]; /* 0xc00 */
- __u8 pad9[0xd40-0xc80]; /* 0xc80 */
- __u64 kernel_stack; /* 0xd40 */
- __u64 async_stack; /* 0xd48 */
- /* entry.S sensitive area start */
- __u8 pad10[0xd80-0xd50]; /* 0xd64 */
- struct cpuinfo_S390 cpu_data; /* 0xd80 */
- __u32 ipl_device; /* 0xdb8 */
- __u32 pad11; /* 0xdbc was lsw word of ipl_device until a bug was found DJB */
- /* entry.S sensitive area end */
- /* SMP info area: defined by DJB */
- __u64 jiffy_timer; /* 0xdc0 */
- __u64 ext_call_fast; /* 0xdc8 */
- __u8 pad12[0xe00-0xdd0]; /* 0xdd0 */
- /* 0xe00 is used as indicator for dump tools */
- /* whether the kernel died with panic() or not */
- __u32 panic_magic; /* 0xe00 */
- __u8 pad13[0x1200-0xe04]; /* 0xe04 */
- /* System info area */
- __u64 floating_pt_save_area[16]; /* 0x1200 */
- __u64 gpregs_save_area[16]; /* 0x1280 */
- __u32 st_status_fixed_logout[4]; /* 0x1300 */
- __u8 pad14[0x1318-0x1310]; /* 0x1310 */
- __u32 prefixreg_save_area; /* 0x1318 */
- __u32 fpt_creg_save_area; /* 0x131c */
- __u8 pad15[0x1324-0x1320]; /* 0x1320 */
- __u32 tod_progreg_save_area; /* 0x1324 */
- __u32 cpu_timer_save_area[2]; /* 0x1328 */
- __u32 clock_comp_save_area[2]; /* 0x1330 */
- __u8 pad16[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 pad17[0x2000-0x1400]; /* 0x1400 */
- } __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
