diff options
Diffstat (limited to 'include/asm-s390/irq.h')
| -rw-r--r-- | include/asm-s390/irq.h | 290 |
1 files changed, 232 insertions, 58 deletions
diff --git a/include/asm-s390/irq.h b/include/asm-s390/irq.h index 5efcdd40b..9849d6fdc 100644 --- a/include/asm-s390/irq.h +++ b/include/asm-s390/irq.h @@ -1,15 +1,8 @@ -/* - * arch/s390/kernel/s390io.h - * - * S390 version - * Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation - * Author(s): Ingo Adlung (adlung@de.ibm.com) - */ - #ifndef __irq_h #define __irq_h #include <linux/config.h> +#ifdef __KERNEL__ #include <asm/hardirq.h> /* @@ -18,6 +11,8 @@ #define __MAX_SUBCHANNELS 65536 #define NR_IRQS __MAX_SUBCHANNELS +#define LPM_ANYPATH 0xff /* doesn't really belong here, Ingo? */ + #define INVALID_STORAGE_AREA ((void *)(-1 - 0x3FFF )) extern int disable_irq(unsigned int); @@ -50,7 +45,8 @@ struct hw_interrupt_type { */ typedef struct { __u32 intparm; /* interruption parameter */ - __u32 res0 : 2; /* reserved zeros */ + __u32 qf : 1; /* qdio facility */ + __u32 res0 : 1; /* reserved zeros */ __u32 isc : 3; /* interruption sublass */ __u32 res5 : 3; /* reserved zeros */ __u32 ena : 1; /* enabled */ @@ -77,6 +73,7 @@ typedef struct { /* ... in an operand exception. */ } __attribute__ ((packed)) pmcw_t; +#endif /* __KERNEL__ */ /* * subchannel status word */ @@ -89,7 +86,7 @@ typedef struct { __u32 pfch : 1; /* prefetch */ __u32 isic : 1; /* initial-status interruption control */ __u32 alcc : 1; /* address-limit checking control */ - __u32 ssi : 1; /* supress-suspended interruption */ + __u32 ssi : 1; /* suppress-suspended interruption */ __u32 zcc : 1; /* zero condition code */ __u32 ectl : 1; /* extended control */ __u32 pno : 1; /* path not operational */ @@ -140,6 +137,44 @@ typedef struct { #define SCHN_STAT_CHAIN_CHECK 0x01 /* + * architectured values for first sense byte + */ +#define SNS0_CMD_REJECT 0x80 +#define SNS_CMD_REJECT SNS0_CMD_REJECT +#define SNS0_INTERVENTION_REQ 0x40 +#define SNS0_BUS_OUT_CHECK 0x20 +#define SNS0_EQUIPMENT_CHECK 0x10 +#define SNS0_DATA_CHECK 0x08 +#define SNS0_OVERRUN 0x04 +/* 0x02 reserved */ +#define SNS0_INCOMPL_DOMAIN 0x01 + +/* + * architectured values for second sense byte + */ +#define SNS1_PERM_ERR 0x80 +#define SNS1_INV_TRACK_FORMAT 0x40 +#define SNS1_EOC 0x20 +#define SNS1_MESSAGE_TO_OPER 0x10 +#define SNS1_NO_REC_FOUND 0x08 +#define SNS1_FILE_PROTECTED 0x04 +#define SNS1_WRITE_INHIBITED 0x02 +#define SNS1_INPRECISE_END 0x01 + +/* + * architectured values for third sense byte + */ +#define SNS2_REQ_INH_WRITE 0x80 +#define SNS2_CORRECTABLE 0x40 +#define SNS2_FIRST_LOG_ERR 0x20 +#define SNS2_ENV_DATA_PRESENT 0x10 +/* 0x08 reserved */ +#define SNS2_INPRECISE_END 0x04 +/* 0x02 reserved */ +/* 0x01 reserved */ + +#ifdef __KERNEL__ +/* * subchannel information block */ typedef struct { @@ -147,13 +182,14 @@ typedef struct { scsw_t scsw; /* subchannel status word */ __u8 mda[12]; /* model dependent area */ } __attribute__ ((packed,aligned(4))) schib_t; +#endif /* __KERNEL__ */ typedef struct { __u8 cmd_code;/* command code */ - __u8 flags; /* flags, like IDA adressing, etc. */ + __u8 flags; /* flags, like IDA addressing, etc. */ __u16 count; /* byte count */ __u32 cda; /* data address */ - } ccw1_t __attribute__ ((packed,aligned(8))); + } __attribute__ ((packed,aligned(8))) ccw1_t; #define CCW_FLAG_DC 0x80 #define CCW_FLAG_CC 0x40 @@ -168,10 +204,13 @@ typedef struct { #define CCW_CMD_BASIC_SENSE 0x04 #define CCW_CMD_TIC 0x08 #define CCW_CMD_SENSE_PGID 0x34 +#define CCW_CMD_SUSPEND_RECONN 0x5B #define CCW_CMD_RDC 0x64 #define CCW_CMD_SET_PGID 0xAF #define CCW_CMD_SENSE_ID 0xE4 +#define CCW_CMD_DCTL 0xF3 +#ifdef __KERNEL__ #define SENSE_MAX_COUNT 0x20 /* @@ -192,19 +231,25 @@ typedef struct { __u32 intparm; /* interruption parameter */ __u32 key : 4; /* flags, like key, suspend control, etc. */ __u32 spnd : 1; /* suspend control */ - __u32 res1 : 3; /* reserved */ + __u32 res1 : 1; /* reserved */ + __u32 mod : 1; /* modification control */ + __u32 sync : 1; /* synchronize control */ __u32 fmt : 1; /* format control */ __u32 pfch : 1; /* prefetch control */ __u32 isic : 1; /* initial-status-interruption control */ __u32 alcc : 1; /* address-limit-checking control */ __u32 ssic : 1; /* suppress-suspended-interr. control */ - __u32 res2 : 3; /* reserved */ + __u32 res2 : 1; /* reserved */ + __u32 c64 : 1; /* IDAW/QDIO 64 bit control */ + __u32 i2k : 1; /* IDAW 2/4kB block size control */ __u32 lpm : 8; /* logical path mask */ __u32 ils : 1; /* incorrect length */ - __u32 zero : 7; /* reserved zeros */ + __u32 zero : 6; /* reserved zeros */ + __u32 orbx : 1; /* ORB extension control */ __u32 cpa; /* channel program address */ } __attribute__ ((packed,aligned(4))) orb_t; +#endif /* __KERNEL__ */ typedef struct { __u32 res0 : 4; /* reserved */ __u32 pvrf : 1; /* path-verification-required flag */ @@ -249,7 +294,7 @@ typedef struct { typedef struct { __u8 zero0; /* reserved zeros */ __u8 lpum; /* last path used mask */ - __u8 zero16; /* reserved zeros */ + __u16 zero16; /* reserved zeros */ erw_t erw; /* extended report word */ __u32 zeros[3]; /* 2 fullwords of zeros */ } __attribute__ ((packed)) esw1_t; @@ -291,30 +336,24 @@ typedef struct { esw_t esw; /* extended status word */ __u8 ecw[32]; /* extended control word */ } irb_t __attribute__ ((packed,aligned(4))); +#ifdef __KERNEL__ /* * TPI info structure */ typedef struct { - __u32 res : 16; /* reserved 0x00000001 */ - __u32 irq : 16; /* aka. subchannel number */ - __u32 intparm; /* interruption parameter */ + __u32 reserved1 : 16; /* reserved 0x00000001 */ + __u32 irq : 16; /* aka. subchannel number */ + __u32 intparm; /* interruption parameter */ + __u32 adapter_IO : 1; + __u32 reserved2 : 1; + __u32 isc : 3; + __u32 reserved3 : 12; + __u32 int_type : 3; + __u32 reserved4 : 12; } __attribute__ ((packed)) tpi_info_t; -/* - * This is the "IRQ descriptor", which contains various information - * about the irq, including what kind of hardware handling it has, - * whether it is disabled etc etc. - * - * Pad this out to 32 bytes for cache and indexing reasons. - */ -typedef struct { - __u32 status; /* IRQ status - IRQ_INPROGRESS, IRQ_DISABLED */ - struct hw_interrupt_type *handler; /* handle/enable/disable functions */ - struct irqaction *action; /* IRQ action list */ - } irq_desc_t; - // // command information word (CIW) layout // @@ -330,6 +369,7 @@ typedef struct _ciw { #define CIW_TYPE_SII 0x1 // set interface identifier #define CIW_TYPE_RNI 0x2 // read node identifier +#define MAX_CIWS 8 // // sense-id response buffer layout // @@ -342,9 +382,10 @@ typedef struct { __u8 dev_model; /* device model */ __u8 unused; /* padding byte */ /* extended part */ - ciw_t ciw[62]; /* variable # of CIWs */ + ciw_t ciw[MAX_CIWS]; /* variable # of CIWs */ } __attribute__ ((packed,aligned(4))) senseid_t; +#endif /* __KERNEL__ */ /* * sense data */ @@ -363,7 +404,7 @@ typedef struct { */ typedef struct { __u16 devno; /* device number, aka. "cuu" from irb */ - unsigned int intparm; /* interrupt parameter */ + unsigned long intparm; /* interrupt parameter */ __u8 cstat; /* channel status - accumulated */ __u8 dstat; /* device status - accumulated */ __u8 lpum; /* last path used mask from irb */ @@ -387,9 +428,53 @@ typedef struct { #define DEVSTAT_DEVICE_GONE 0x00000040 #define DEVSTAT_DEVICE_OWNED 0x00000080 #define DEVSTAT_CLEAR_FUNCTION 0x00000100 +#define DEVSTAT_PCI 0x00000200 +#define DEVSTAT_SUSPENDED 0x00000400 +#define DEVSTAT_UNKNOWN_DEV 0x00000800 #define DEVSTAT_FINAL_STATUS 0x80000000 +#define DEVINFO_NOT_OPER DEVSTAT_NOT_OPER +#define DEVINFO_UNKNOWN_DEV DEVSTAT_UNKNOWN_DEV +#define DEVINFO_DEVICE_OWNED DEVSTAT_DEVICE_OWNED +#define DEVINFO_QDIO_CAPABLE 0x40000000 + #define INTPARM_STATUS_PENDING 0xFFFFFFFF +#ifdef __KERNEL__ + +#define IO_INTERRUPT_TYPE 0 /* I/O interrupt type */ + +typedef void (* io_handler_func1_t) ( int irq, + devstat_t *devstat, + struct pt_regs *rgs); + +typedef void (* io_handler_func_t) ( int irq, + void *devstat, + struct pt_regs *rgs); + +typedef void ( * not_oper_handler_func_t)( int irq, + int status ); + +typedef int (* adapter_int_handler_t)( __u32 intparm ); + +struct s390_irqaction { + io_handler_func_t handler; + unsigned long flags; + const char *name; + devstat_t *dev_id; +}; + +/* + * This is the "IRQ descriptor", which contains various information + * about the irq, including what kind of hardware handling it has, + * whether it is disabled etc etc. + * + * Pad this out to 32 bytes for cache and indexing reasons. + */ +typedef struct { + unsigned int status; /* IRQ status - IRQ_INPROGRESS, IRQ_DISABLED */ + struct hw_interrupt_type *handler; /* handle/enable/disable functions */ + struct s390_irqaction *action; /* IRQ action list */ + } irq_desc_t; typedef struct { __u8 state1 : 2; /* path state value 1 */ @@ -409,36 +494,39 @@ typedef struct { __u32 tod_high; /* high word TOD clock */ } __attribute__ ((packed)) pgid_t; +#define SPID_FUNC_SINGLE_PATH 0x00 #define SPID_FUNC_MULTI_PATH 0x80 #define SPID_FUNC_ESTABLISH 0x00 #define SPID_FUNC_RESIGN 0x40 #define SPID_FUNC_DISBAND 0x20 -#define SNID_STATE1_RESET 0x0 -#define SNID_STATE1_UNGROUPED 0x8 -#define SNID_STATE1_GROUPED 0xC +#define SNID_STATE1_RESET 0 +#define SNID_STATE1_UNGROUPED 2 +#define SNID_STATE1_GROUPED 3 -#define SNID_STATE2_NOT_RESVD 0x0 -#define SNID_STATE2_RESVD_ELSE 0x8 -#define SNID_STATE2_RESVD_SELF 0xC +#define SNID_STATE2_NOT_RESVD 0 +#define SNID_STATE2_RESVD_ELSE 2 +#define SNID_STATE2_RESVD_SELF 3 #define SNID_STATE3_MULTI_PATH 1 +#define SNID_STATE3_SINGLE_PATH 0 /* * Flags used as input parameters for do_IO() */ -#define DOIO_EARLY_NOTIFICATION 0x01 /* allow for I/O completion ... */ +#define DOIO_EARLY_NOTIFICATION 0x0001 /* allow for I/O completion ... */ /* ... notification after ... */ /* ... primary interrupt status */ -#define DOIO_RETURN_CHAN_END DOIO_EARLY_NOTIFICATION -#define DOIO_VALID_LPM 0x02 /* LPM input parameter is valid */ -#define DOIO_WAIT_FOR_INTERRUPT 0x04 /* wait synchronously for interrupt */ -#define DOIO_REPORT_ALL 0x08 /* report all interrupt conditions */ -#define DOIO_ALLOW_SUSPEND 0x10 /* allow for channel prog. suspend */ -#define DOIO_DENY_PREFETCH 0x20 /* don't allow for CCW prefetch */ -#define DOIO_SUPPRESS_INTER 0x40 /* suppress intermediate inter. */ +#define DOIO_RETURN_CHAN_END DOIO_EARLY_NOTIFICATION +#define DOIO_VALID_LPM 0x0002 /* LPM input parameter is valid */ +#define DOIO_WAIT_FOR_INTERRUPT 0x0004 /* wait synchronously for interrupt */ +#define DOIO_REPORT_ALL 0x0008 /* report all interrupt conditions */ +#define DOIO_ALLOW_SUSPEND 0x0010 /* allow for channel prog. suspend */ +#define DOIO_DENY_PREFETCH 0x0020 /* don't allow for CCW prefetch */ +#define DOIO_SUPPRESS_INTER 0x0040 /* suppress intermediate inter. */ /* ... for suspended CCWs */ -#define DOIO_TIMEOUT 0x80 /* 3 secs. timeout for sync. I/O */ +#define DOIO_TIMEOUT 0x0080 /* 3 secs. timeout for sync. I/O */ +#define DOIO_DONT_CALL_INTHDLR 0x0100 /* don't call interrupt handler */ /* * do_IO() @@ -464,7 +552,7 @@ int do_IO( int irq, /* IRQ aka. subchannel number */ int start_IO( int irq, /* IRQ aka. subchannel number */ ccw1_t *cpa, /* logical channel program address */ - unsigned int intparm, /* interruption parameter */ + unsigned long intparm, /* interruption parameter */ __u8 lpm, /* logical path mask */ unsigned int flag); /* flags : see above */ @@ -493,12 +581,12 @@ typedef struct { __u16 devno; /* device number */ unsigned int status; /* device status */ senseid_t sid_data; /* senseID data */ - } dev_info_t; + } s390_dev_info_t; -int get_dev_info( int irq, dev_info_t *); /* to be eliminated - don't use */ +int get_dev_info( int irq, s390_dev_info_t *); /* to be eliminated - don't use */ -int get_dev_info_by_irq ( int irq, dev_info_t *pdi); -int get_dev_info_by_devno( __u16 devno, dev_info_t *pdi); +int get_dev_info_by_irq ( int irq, s390_dev_info_t *pdi); +int get_dev_info_by_devno( __u16 devno, s390_dev_info_t *pdi); int get_irq_by_devno( __u16 devno ); unsigned int get_devno_by_irq( int irq ); @@ -507,7 +595,16 @@ int get_irq_first( void ); int get_irq_next ( int irq ); int read_dev_chars( int irq, void **buffer, int length ); -int read_conf_data( int irq, void **buffer, int *length ); +int read_conf_data( int irq, void **buffer, int *length, __u8 lpm ); + +int s390_DevicePathVerification( int irq, __u8 domask ); + +int s390_request_irq_special( int irq, + io_handler_func_t io_handler, + not_oper_handler_func_t not_oper_handler, + unsigned long irqflags, + const char *devname, + void *dev_id); extern int handle_IRQ_event( unsigned int irq, int cpu, struct pt_regs *); @@ -524,7 +621,11 @@ extern __inline__ int stsch(int irq, volatile schib_t *addr) int ccode; __asm__ __volatile__( +#ifdef CONFIG_ARCH_S390X + "LGR 1,%1\n\t" +#else "LR 1,%1\n\t" +#endif "STSCH 0(%2)\n\t" "IPM %0\n\t" "SRL %0,28\n\t" @@ -538,7 +639,11 @@ extern __inline__ int msch(int irq, volatile schib_t *addr) int ccode; __asm__ __volatile__( +#ifdef CONFIG_ARCH_S390X + "LGR 1,%1\n\t" +#else "LR 1,%1\n\t" +#endif "MSCH 0(%2)\n\t" "IPM %0\n\t" "SRL %0,28\n\t" @@ -552,6 +657,21 @@ extern __inline__ int msch_err(int irq, volatile schib_t *addr) int ccode; __asm__ __volatile__( +#ifdef CONFIG_ARCH_S390X + " lgr 1,%1\n" + " msch 0(%2)\n" + "0: ipm %0\n" + " srl %0,28\n" + "1:\n" + ".section .fixup,\"ax\"\n" + "2: l %0,%3\n" + " jg 1b\n" + ".previous\n" + ".section __ex_table,\"a\"\n" + " .align 8\n" + " .quad 0b,2b\n" + ".previous" +#else " lr 1,%1\n" " msch 0(%2)\n" "0: ipm %0\n" @@ -568,6 +688,7 @@ extern __inline__ int msch_err(int irq, volatile schib_t *addr) " .align 4\n" " .long 0b,2b\n" ".previous" +#endif : "=d" (ccode) : "r" (irq | 0x10000L), "a" (addr), "i" (__LC_PGM_ILC) : "cc", "1" ); @@ -579,7 +700,11 @@ extern __inline__ int tsch(int irq, volatile irb_t *addr) int ccode; __asm__ __volatile__( +#ifdef CONFIG_ARCH_S390X + "LGR 1,%1\n\t" +#else "LR 1,%1\n\t" +#endif "TSCH 0(%2)\n\t" "IPM %0\n\t" "SRL %0,28\n\t" @@ -606,7 +731,11 @@ extern __inline__ int ssch(int irq, volatile orb_t *addr) int ccode; __asm__ __volatile__( +#ifdef CONFIG_ARCH_S390X + "LGR 1,%1\n\t" +#else "LR 1,%1\n\t" +#endif "SSCH 0(%2)\n\t" "IPM %0\n\t" "SRL %0,28\n\t" @@ -620,7 +749,11 @@ extern __inline__ int rsch(int irq) int ccode; __asm__ __volatile__( +#ifdef CONFIG_ARCH_S390X + "LGR 1,%1\n\t" +#else "LR 1,%1\n\t" +#endif "RSCH\n\t" "IPM %0\n\t" "SRL %0,28\n\t" @@ -634,7 +767,11 @@ extern __inline__ int csch(int irq) int ccode; __asm__ __volatile__( +#ifdef CONFIG_ARCH_S390X + "LGR 1,%1\n\t" +#else "LR 1,%1\n\t" +#endif "CSCH\n\t" "IPM %0\n\t" "SRL %0,28\n\t" @@ -648,7 +785,11 @@ extern __inline__ int hsch(int irq) int ccode; __asm__ __volatile__( +#ifdef CONFIG_ARCH_S390X + "LGR 1,%1\n\t" +#else "LR 1,%1\n\t" +#endif "HSCH\n\t" "IPM %0\n\t" "SRL %0,28\n\t" @@ -669,6 +810,24 @@ extern __inline__ int iac( void) return ccode; } +extern __inline__ int rchp(int chpid) +{ + int ccode; + + __asm__ __volatile__( +#ifdef CONFIG_ARCH_S390X + "LGR 1,%1\n\t" +#else + "LR 1,%1\n\t" +#endif + "RCHP\n\t" + "IPM %0\n\t" + "SRL %0,28\n\t" + : "=d" (ccode) : "r" (chpid) + : "cc", "1" ); + return ccode; +} + typedef struct { __u16 vrdcdvno : 16; /* device number (input) */ __u16 vrdclen : 16; /* data block length (input) */ @@ -690,12 +849,18 @@ extern __inline__ int diag210( diag210_t * addr) int ccode; __asm__ __volatile__( +#ifdef CONFIG_ARCH_S390X + "SAM31\n\t" + "DIAG %1,0,0x210\n\t" + "SAM64\n\t" +#else "LR 1,%1\n\t" ".long 0x83110210\n\t" +#endif "IPM %0\n\t" "SRL %0,28\n\t" : "=d" (ccode) : "a" (addr) - : "cc", "1" ); + : "cc" ); return ccode; } @@ -720,9 +885,15 @@ extern spinlock_t irq_controller_lock; static inline void irq_enter(int cpu, unsigned int irq) { hardirq_enter(cpu); +#ifdef CONFIG_ARCH_S390X + while (atomic_read(&global_irq_lock) != 0) { + eieio(); + } +#else while (test_bit(0,&global_irq_lock)) { eieio(); } +#endif } static inline void irq_exit(int cpu, unsigned int irq) @@ -754,10 +925,13 @@ static inline void irq_exit(int cpu, unsigned int irq) * x86 profiling function, SMP safe. We might want to do this in * assembly totally? */ +extern char _stext; static inline void s390_do_profile (unsigned long addr) { -#if 0 if (prof_buffer && current->pid) { +#ifndef CONFIG_ARCH_S390X + addr &= 0x7fffffff; +#endif addr -= (unsigned long) &_stext; addr >>= prof_shift; /* @@ -769,7 +943,6 @@ static inline void s390_do_profile (unsigned long addr) addr = prof_len-1; atomic_inc((atomic_t *)&prof_buffer[addr]); } -#endif } #include <asm/s390io.h> @@ -784,5 +957,6 @@ static inline void s390_do_profile (unsigned long addr) spin_lock_irqsave(&(ioinfo[irq]->irq_lock), flags) #define s390irq_spin_unlock_irqrestore(irq,flags) \ spin_unlock_irqrestore(&(ioinfo[irq]->irq_lock), flags) +#endif /* __KERNEL__ */ #endif |