irq.h
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:31k
- #ifndef _ASM_IRQ_H
- #define _ASM_IRQ_H
- #include <linux/config.h>
- #ifdef __KERNEL__
- #include <asm/hardirq.h>
- /*
- * How many IRQ's for S390 ?!?
- */
- #define __MAX_SUBCHANNELS 65536
- #define NR_IRQS __MAX_SUBCHANNELS
- #define NR_CHPIDS 256
- #define LPM_ANYPATH 0xff /* doesn't really belong here, Ingo? */
- #define INVALID_STORAGE_AREA ((void *)(-1 - 0x3FFF ))
- extern int disable_irq(unsigned int);
- extern int enable_irq(unsigned int);
- /*
- * path management control word
- */
- typedef struct {
- __u32 intparm; /* interruption parameter */
- __u32 qf : 1; /* qdio facility */
- __u32 res0 : 1; /* reserved zeros */
- __u32 isc : 3; /* interruption sublass */
- __u32 res5 : 3; /* reserved zeros */
- __u32 ena : 1; /* enabled */
- __u32 lm : 2; /* limit mode */
- __u32 mme : 2; /* measurement-mode enable */
- __u32 mp : 1; /* multipath mode */
- __u32 tf : 1; /* timing facility */
- __u32 dnv : 1; /* device number valid */
- __u32 dev : 16; /* device number */
- __u8 lpm; /* logical path mask */
- __u8 pnom; /* path not operational mask */
- __u8 lpum; /* last path used mask */
- __u8 pim; /* path installed mask */
- __u16 mbi; /* measurement-block index */
- __u8 pom; /* path operational mask */
- __u8 pam; /* path available mask */
- __u8 chpid[8]; /* CHPID 0-7 (if available) */
- __u32 unused1 : 8; /* reserved zeros */
- __u32 st : 3; /* subchannel type */
- __u32 unused2 : 20; /* reserved zeros */
- __u32 csense : 1; /* concurrent sense; can be enabled ...*/
- /* ... per MSCH, however, if facility */
- /* ... is not installed, this results */
- /* ... in an operand exception. */
- } __attribute__ ((packed)) pmcw_t;
- #endif /* __KERNEL__ */
- /*
- * subchannel status word
- */
- typedef struct {
- __u32 key : 4; /* subchannel key */
- __u32 sctl : 1; /* suspend control */
- __u32 eswf : 1; /* ESW format */
- __u32 cc : 2; /* deferred condition code */
- __u32 fmt : 1; /* format */
- __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 zcc : 1; /* zero condition code */
- __u32 ectl : 1; /* extended control */
- __u32 pno : 1; /* path not operational */
- __u32 res : 1; /* reserved */
- __u32 fctl : 3; /* function control */
- __u32 actl : 7; /* activity control */
- __u32 stctl : 5; /* status control */
- __u32 cpa; /* channel program address */
- __u32 dstat : 8; /* device status */
- __u32 cstat : 8; /* subchannel status */
- __u32 count : 16; /* residual count */
- } __attribute__ ((packed)) scsw_t;
- #define SCSW_FCTL_CLEAR_FUNC 0x1
- #define SCSW_FCTL_HALT_FUNC 0x2
- #define SCSW_FCTL_START_FUNC 0x4
- #define SCSW_ACTL_SUSPENDED 0x1
- #define SCSW_ACTL_DEVACT 0x2
- #define SCSW_ACTL_SCHACT 0x4
- #define SCSW_ACTL_CLEAR_PEND 0x8
- #define SCSW_ACTL_HALT_PEND 0x10
- #define SCSW_ACTL_START_PEND 0x20
- #define SCSW_ACTL_RESUME_PEND 0x40
- #define SCSW_STCTL_STATUS_PEND 0x1
- #define SCSW_STCTL_SEC_STATUS 0x2
- #define SCSW_STCTL_PRIM_STATUS 0x4
- #define SCSW_STCTL_INTER_STATUS 0x8
- #define SCSW_STCTL_ALERT_STATUS 0x10
- #define DEV_STAT_ATTENTION 0x80
- #define DEV_STAT_STAT_MOD 0x40
- #define DEV_STAT_CU_END 0x20
- #define DEV_STAT_BUSY 0x10
- #define DEV_STAT_CHN_END 0x08
- #define DEV_STAT_DEV_END 0x04
- #define DEV_STAT_UNIT_CHECK 0x02
- #define DEV_STAT_UNIT_EXCEP 0x01
- #define SCHN_STAT_PCI 0x80
- #define SCHN_STAT_INCORR_LEN 0x40
- #define SCHN_STAT_PROG_CHECK 0x20
- #define SCHN_STAT_PROT_CHECK 0x10
- #define SCHN_STAT_CHN_DATA_CHK 0x08
- #define SCHN_STAT_CHN_CTRL_CHK 0x04
- #define SCHN_STAT_INTF_CTRL_CHK 0x02
- #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 {
- pmcw_t pmcw; /* path management control word */
- 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. */
- __u16 count; /* byte count */
- __u32 cda; /* data address */
- } __attribute__ ((packed,aligned(8))) ccw1_t;
- #define CCW_FLAG_DC 0x80
- #define CCW_FLAG_CC 0x40
- #define CCW_FLAG_SLI 0x20
- #define CCW_FLAG_SKIP 0x10
- #define CCW_FLAG_PCI 0x08
- #define CCW_FLAG_IDA 0x04
- #define CCW_FLAG_SUSPEND 0x02
- #define CCW_CMD_READ_IPL 0x02
- #define CCW_CMD_NOOP 0x03
- #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
- /*
- * 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
- /*
- * operation request block
- */
- typedef struct {
- __u32 intparm; /* interruption parameter */
- __u32 key : 4; /* flags, like key, suspend control, etc. */
- __u32 spnd : 1; /* suspend control */
- __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 : 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 : 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 */
- __u32 cpt : 1; /* channel-path timeout */
- __u32 fsavf : 1; /* Failing storage address validity flag */
- __u32 cons : 1; /* concurrent-sense */
- __u32 res8 : 2; /* reserved */
- __u32 scnt : 6; /* sense count if cons == 1 */
- __u32 res16 : 16; /* reserved */
- } __attribute__ ((packed)) erw_t;
- /*
- * subchannel logout area
- */
- typedef struct {
- __u32 res0 : 1; /* reserved */
- __u32 esf : 7; /* extended status flags */
- __u32 lpum : 8; /* last path used mask */
- __u32 res16 : 1; /* reserved */
- __u32 fvf : 5; /* field-validity flags */
- __u32 sacc : 2; /* storage access code */
- __u32 termc : 2; /* termination code */
- __u32 devsc : 1; /* device-status check */
- __u32 serr : 1; /* secondary error */
- __u32 ioerr : 1; /* i/o-error alert */
- __u32 seqc : 3; /* sequence code */
- } __attribute__ ((packed)) sublog_t ;
- /*
- * Format 0 Extended Status Word (ESW)
- */
- typedef struct {
- sublog_t sublog; /* subchannel logout */
- erw_t erw; /* extended report word */
- __u32 faddr; /* failing address */
- __u32 zeros[2]; /* 2 fullwords of zeros */
- } __attribute__ ((packed)) esw0_t;
- /*
- * Format 1 Extended Status Word (ESW)
- */
- typedef struct {
- __u8 zero0; /* reserved zeros */
- __u8 lpum; /* last path used mask */
- __u16 zero16; /* reserved zeros */
- erw_t erw; /* extended report word */
- __u32 zeros[3]; /* 2 fullwords of zeros */
- } __attribute__ ((packed)) esw1_t;
- /*
- * Format 2 Extended Status Word (ESW)
- */
- typedef struct {
- __u8 zero0; /* reserved zeros */
- __u8 lpum; /* last path used mask */
- __u16 dcti; /* device-connect-time interval */
- erw_t erw; /* extended report word */
- __u32 zeros[3]; /* 2 fullwords of zeros */
- } __attribute__ ((packed)) esw2_t;
- /*
- * Format 3 Extended Status Word (ESW)
- */
- typedef struct {
- __u8 zero0; /* reserved zeros */
- __u8 lpum; /* last path used mask */
- __u16 res; /* reserved */
- erw_t erw; /* extended report word */
- __u32 zeros[3]; /* 2 fullwords of zeros */
- } __attribute__ ((packed)) esw3_t;
- typedef union {
- esw0_t esw0;
- esw1_t esw1;
- esw2_t esw2;
- esw3_t esw3;
- } __attribute__ ((packed)) esw_t;
- /*
- * interruption response block
- */
- typedef struct {
- scsw_t scsw; /* subchannel status word */
- esw_t esw; /* extended status word */
- __u8 ecw[32]; /* extended control word */
- } __attribute__ ((packed,aligned(4))) irb_t;
- #ifdef __KERNEL__
- /*
- * TPI info structure
- */
- typedef struct {
- __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;
- //
- // command information word (CIW) layout
- //
- typedef struct _ciw {
- __u32 et : 2; // entry type
- __u32 reserved : 2; // reserved
- __u32 ct : 4; // command type
- __u32 cmd : 8; // command
- __u32 count : 16; // count
- } __attribute__ ((packed)) ciw_t;
- #define CIW_TYPE_RCD 0x0 // read configuration data
- #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
- //
- typedef struct {
- /* common part */
- __u8 reserved; /* always 0x'FF' */
- __u16 cu_type; /* control unit type */
- __u8 cu_model; /* control unit model */
- __u16 dev_type; /* device type */
- __u8 dev_model; /* device model */
- __u8 unused; /* padding byte */
- /* extended part */
- ciw_t ciw[MAX_CIWS]; /* variable # of CIWs */
- } __attribute__ ((packed,aligned(4))) senseid_t;
- /*
- * where we put the ssd info
- */
- typedef struct _ssd_info {
- __u8 valid:1;
- __u8 type:7; /* subchannel type */
- __u8 chpid[8]; /* chpids */
- __u16 fla[8]; /* full link addresses */
- } __attribute__ ((packed)) ssd_info_t;
- /*
- * area for store event information
- */
- typedef struct chsc_area_t {
- struct {
- /* word 0 */
- __u16 command_code1;
- __u16 command_code2;
- union {
- struct {
- /* word 1 */
- __u32 reserved1;
- /* word 2 */
- __u32 reserved2;
- } __attribute__ ((packed,aligned(8))) sei_req;
- struct {
- /* word 1 */
- __u16 reserved1;
- __u16 f_sch; /* first subchannel */
- /* word 2 */
- __u16 reserved2;
- __u16 l_sch; /* last subchannel */
- } __attribute__ ((packed,aligned(8))) ssd_req;
- } request_block_data;
- /* word 3 */
- __u32 reserved3;
- } __attribute__ ((packed,aligned(8))) request_block;
- struct {
- /* word 0 */
- __u16 length;
- __u16 response_code;
- /* word 1 */
- __u32 reserved1;
- union {
- struct {
- /* word 2 */
- __u8 flags;
- __u8 vf; /* validity flags */
- __u8 rs; /* reporting source */
- __u8 cc; /* content code */
- /* word 3 */
- __u16 fla; /* full link address */
- __u16 rsid; /* reporting source id */
- /* word 4 */
- __u32 reserved2;
- /* word 5 */
- __u32 reserved3;
- /* word 6 */
- __u32 ccdf; /* content-code dependent field */
- /* word 7 */
- __u32 reserved4;
- /* word 8 */
- __u32 reserved5;
- /* word 9 */
- __u32 reserved6;
- } __attribute__ ((packed,aligned(8))) sei_res;
- struct {
- /* word 2 */
- __u8 sch_valid : 1;
- __u8 dev_valid : 1;
- __u8 st : 3; /* subchannel type */
- __u8 zeroes : 3;
- __u8 unit_addr; /* unit address */
- __u16 devno; /* device number */
- /* word 3 */
- __u8 path_mask;
- __u8 fla_valid_mask;
- __u16 sch; /* subchannel */
- /* words 4-5 */
- __u8 chpid[8]; /* chpids 0-7 */
- /* words 6-9 */
- __u16 fla[8]; /* full link addresses 0-7 */
- } __attribute__ ((packed,aligned(8))) ssd_res;
- } response_block_data;
- } __attribute__ ((packed,aligned(8))) response_block;
- } __attribute__ ((packed,aligned(PAGE_SIZE))) chsc_area_t;
- #endif /* __KERNEL__ */
- /*
- * sense data
- */
- typedef struct {
- __u8 res[32]; /* reserved */
- __u8 data[32]; /* sense data */
- } __attribute__ ((packed)) sense_t;
- /*
- * device status area, to be provided by the device driver
- * when calling request_irq() as parameter "dev_id", later
- * tied to the "action" control block.
- *
- * Note : No data area must be added after union ii or the
- * effective devstat size calculation will fail !
- */
- typedef struct {
- __u16 devno; /* device number, aka. "cuu" from irb */
- unsigned long intparm; /* interrupt parameter */
- __u8 cstat; /* channel status - accumulated */
- __u8 dstat; /* device status - accumulated */
- __u8 lpum; /* last path used mask from irb */
- __u8 unused; /* not used - reserved */
- unsigned int flag; /* flag : see below */
- __u32 cpa; /* CCW address from irb at primary status */
- __u32 rescnt; /* res. count from irb at primary status */
- __u32 scnt; /* sense count, if DEVSTAT_FLAG_SENSE_AVAIL */
- union {
- irb_t irb; /* interruption response block */
- sense_t sense; /* sense information */
- } ii; /* interrupt information */
- } devstat_t;
- #define DEVSTAT_FLAG_SENSE_AVAIL 0x00000001
- #define DEVSTAT_NOT_OPER 0x00000002
- #define DEVSTAT_START_FUNCTION 0x00000004
- #define DEVSTAT_HALT_FUNCTION 0x00000008
- #define DEVSTAT_STATUS_PENDING 0x00000010
- #define DEVSTAT_REVALIDATE 0x00000020
- #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_UNFRIENDLY_DEV 0x00001000
- #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 DEVINFO_UNFRIENDLY_DEV DEVSTAT_UNFRIENDLY_DEV
- #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 );
- typedef struct {
- io_handler_func_t handler; /* interrupt handler routine */
- const char *name; /* device name */
- devstat_t *dev_id; /* device status block */
- } irq_desc_t;
- typedef struct {
- __u8 state1 : 2; /* path state value 1 */
- __u8 state2 : 2; /* path state value 2 */
- __u8 state3 : 1; /* path state value 3 */
- __u8 resvd : 3; /* reserved */
- } __attribute__ ((packed)) path_state_t;
- typedef struct {
- union {
- __u8 fc; /* SPID function code */
- path_state_t ps; /* SNID path state */
- } inf;
- __u32 cpu_addr : 16; /* CPU address */
- __u32 cpu_id : 24; /* CPU identification */
- __u32 cpu_model : 16; /* CPU model */
- __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 0
- #define SNID_STATE1_UNGROUPED 2
- #define SNID_STATE1_GROUPED 3
- #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 0x0001 /* allow for I/O completion ... */
- /* ... notification after ... */
- /* ... primary interrupt status */
- #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 0x0080 /* 3 secs. timeout for sync. I/O */
- #define DOIO_DONT_CALL_INTHDLR 0x0100 /* don't call interrupt handler */
- #define DOIO_CANCEL_ON_TIMEOUT 0x0200 /* cancel I/O if it timed out */
- /*
- * do_IO()
- *
- * Start a S/390 channel program. When the interrupt arrives, the
- * IRQ handler is called, either immediately, delayed (dev-end missing,
- * or sense required) or never (no IRQ handler registered -
- * should never occur, as the IRQ (subchannel ID) should be
- * disabled if no handler is present. Depending on the action
- * taken, do_IO() returns : 0 - Success
- * -EIO - Status pending
- * see : action->dev_id->cstat
- * action->dev_id->dstat
- * -EBUSY - Device busy
- * -ENODEV - Device not operational
- */
- int do_IO( int irq, /* IRQ aka. subchannel number */
- ccw1_t *cpa, /* logical channel program address */
- unsigned long intparm, /* interruption parameter */
- __u8 lpm, /* logical path mask */
- unsigned long flag); /* flags : see above */
- int start_IO( int irq, /* IRQ aka. subchannel number */
- ccw1_t *cpa, /* logical channel program address */
- unsigned long intparm, /* interruption parameter */
- __u8 lpm, /* logical path mask */
- unsigned int flag); /* flags : see above */
- void do_crw_pending( void ); /* CRW handler */
- int resume_IO( int irq); /* IRQ aka. subchannel number */
- int halt_IO( int irq, /* IRQ aka. subchannel number */
- unsigned long intparm, /* dummy intparm */
- unsigned long flag); /* possible DOIO_WAIT_FOR_INTERRUPT */
- int clear_IO( int irq, /* IRQ aka. subchannel number */
- unsigned long intparm, /* dummy intparm */
- unsigned long flag); /* possible DOIO_WAIT_FOR_INTERRUPT */
- int process_IRQ( struct pt_regs regs,
- unsigned int irq,
- unsigned int intparm);
- int enable_cpu_sync_isc ( int irq );
- int disable_cpu_sync_isc( int irq );
- typedef struct {
- int irq; /* irq, aka. subchannel */
- __u16 devno; /* device number */
- unsigned int status; /* device status */
- senseid_t sid_data; /* senseID data */
- } s390_dev_info_t;
- int get_dev_info( int irq, s390_dev_info_t *); /* to be eliminated - don't use */
- 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 );
- 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, __u8 lpm );
- int s390_DevicePathVerification( int irq, __u8 domask );
- int s390_trigger_resense(int irq);
- 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 set_cons_dev(int irq);
- extern int reset_cons_dev(int irq);
- extern int wait_cons_dev(int irq);
- extern schib_t *s390_get_schib( int irq );
- extern int s390_register_adapter_interrupt(adapter_int_handler_t handler);
- extern int s390_unregister_adapter_interrupt(adapter_int_handler_t handler);
- /*
- * Some S390 specific IO instructions as inline
- */
- extern __inline__ int stsch(int irq, volatile schib_t *addr)
- {
- int ccode;
- __asm__ __volatile__(
- " lr 1,%1n"
- " stsch 0(%2)n"
- " ipm %0n"
- " srl %0,28"
- : "=d" (ccode)
- : "d" (irq | 0x10000), "a" (addr)
- : "cc", "1" );
- return ccode;
- }
- extern __inline__ int msch(int irq, volatile schib_t *addr)
- {
- int ccode;
- __asm__ __volatile__(
- " lr 1,%1n"
- " msch 0(%2)n"
- " ipm %0n"
- " srl %0,28"
- : "=d" (ccode)
- : "d" (irq | 0x10000L), "a" (addr)
- : "cc", "1" );
- return ccode;
- }
- extern __inline__ int msch_err(int irq, volatile schib_t *addr)
- {
- int ccode;
- __asm__ __volatile__(
- " lr 1,%1n"
- " msch 0(%2)n"
- "0: ipm %0n"
- " srl %0,28n"
- "1:n"
- #ifdef CONFIG_ARCH_S390X
- ".section .fixup,"ax"n"
- "2: l %0,%3n"
- " jg 1bn"
- ".previousn"
- ".section __ex_table,"a"n"
- " .align 8n"
- " .quad 0b,2bn"
- ".previous"
- #else
- ".section .fixup,"ax"n"
- "2: l %0,%3n"
- " bras 1,3fn"
- " .long 1bn"
- "3: l 1,0(1)n"
- " br 1n"
- ".previousn"
- ".section __ex_table,"a"n"
- " .align 4n"
- " .long 0b,2bn"
- ".previous"
- #endif
- : "=d" (ccode)
- : "d" (irq | 0x10000L), "a" (addr), "i" (__LC_PGM_ILC)
- : "cc", "1" );
- return ccode;
- }
- extern __inline__ int tsch(int irq, volatile irb_t *addr)
- {
- int ccode;
- __asm__ __volatile__(
- " lr 1,%1n"
- " tsch 0(%2)n"
- " ipm %0n"
- " srl %0,28"
- : "=d" (ccode)
- : "d" (irq | 0x10000L), "a" (addr)
- : "cc", "1" );
- return ccode;
- }
- extern __inline__ int tpi( volatile tpi_info_t *addr)
- {
- int ccode;
- __asm__ __volatile__(
- " tpi 0(%1)n"
- " ipm %0n"
- " srl %0,28"
- : "=d" (ccode)
- : "a" (addr)
- : "cc", "1" );
- return ccode;
- }
- extern __inline__ int ssch(int irq, volatile orb_t *addr)
- {
- int ccode;
- __asm__ __volatile__(
- " lr 1,%1n"
- " ssch 0(%2)n"
- " ipm %0n"
- " srl %0,28"
- : "=d" (ccode)
- : "d" (irq | 0x10000L), "a" (addr)
- : "cc", "1" );
- return ccode;
- }
- extern __inline__ int rsch(int irq)
- {
- int ccode;
- __asm__ __volatile__(
- " lr 1,%1n"
- " rschn"
- " ipm %0n"
- " srl %0,28"
- : "=d" (ccode)
- : "d" (irq | 0x10000L)
- : "cc", "1" );
- return ccode;
- }
- extern __inline__ int csch(int irq)
- {
- int ccode;
- __asm__ __volatile__(
- " lr 1,%1n"
- " cschn"
- " ipm %0n"
- " srl %0,28"
- : "=d" (ccode)
- : "d" (irq | 0x10000L)
- : "cc", "1" );
- return ccode;
- }
- extern __inline__ int hsch(int irq)
- {
- int ccode;
- __asm__ __volatile__(
- " lr 1,%1n"
- " hschn"
- " ipm %0n"
- " srl %0,28"
- : "=d" (ccode)
- : "d" (irq | 0x10000L)
- : "cc", "1" );
- return ccode;
- }
- extern __inline__ int xsch(int irq)
- {
- int ccode;
-
- __asm__ __volatile__(
- " lr 1,%1n"
- " .insn rre,0xb2760000,%1,0n"
- " ipm %0n"
- " srl %0,28"
- : "=d" (ccode)
- : "d" (irq | 0x10000L)
- : "cc", "1" );
- return ccode;
- }
- extern __inline__ int iac( void)
- {
- int ccode;
- __asm__ __volatile__(
- " iac 1n"
- " ipm %0n"
- " srl %0,28"
- : "=d" (ccode) : : "cc", "1" );
- return ccode;
- }
- extern __inline__ int rchp(int chpid)
- {
- int ccode;
- __asm__ __volatile__(
- " lr 1,%1n"
- " rchpn"
- " ipm %0n"
- " srl %0,28"
- : "=d" (ccode)
- : "d" (chpid)
- : "cc", "1" );
- return ccode;
- }
- typedef struct {
- __u16 vrdcdvno : 16; /* device number (input) */
- __u16 vrdclen : 16; /* data block length (input) */
- __u32 vrdcvcla : 8; /* virtual device class (output) */
- __u32 vrdcvtyp : 8; /* virtual device type (output) */
- __u32 vrdcvsta : 8; /* virtual device status (output) */
- __u32 vrdcvfla : 8; /* virtual device flags (output) */
- __u32 vrdcrccl : 8; /* real device class (output) */
- __u32 vrdccrty : 8; /* real device type (output) */
- __u32 vrdccrmd : 8; /* real device model (output) */
- __u32 vrdccrft : 8; /* real device feature (output) */
- } __attribute__ ((packed,aligned(4))) diag210_t;
- void VM_virtual_device_info( __u16 devno, /* device number */
- senseid_t *ps ); /* ptr to senseID data */
- extern __inline__ int diag210( diag210_t * addr)
- {
- int ccode;
- __asm__ __volatile__(
- #ifdef CONFIG_ARCH_S390X
- " sam31n"
- " diag %1,0,0x210n"
- " sam64n"
- #else
- " diag %1,0,0x210n"
- #endif
- " ipm %0n"
- " srl %0,28"
- : "=d" (ccode)
- : "a" (addr)
- : "cc" );
- return ccode;
- }
- extern __inline__ int chsc( chsc_area_t * chsc_area)
- {
- int cc;
-
- __asm__ __volatile__ (
- ".insn rre,0xb25f0000,%1,0 nt"
- "ipm %0 nt"
- "srl %0,28 nt"
- : "=d" (cc)
- : "d" (chsc_area)
- : "cc" );
-
- return cc;
- }
- /*
- * Various low-level irq details needed by irq.c, process.c,
- * time.c, io_apic.c and smp.c
- *
- * Interrupt entry/exit code at both C and assembly level
- */
- void mask_irq(unsigned int irq);
- void unmask_irq(unsigned int irq);
- #define MAX_IRQ_SOURCES 128
- extern spinlock_t irq_controller_lock;
- #ifdef CONFIG_SMP
- #include <asm/atomic.h>
- static inline void irq_enter(int cpu, unsigned int irq)
- {
- hardirq_enter(cpu);
- while (atomic_read(&global_irq_lock) != 0) {
- eieio();
- }
- }
- static inline void irq_exit(int cpu, unsigned int irq)
- {
- hardirq_exit(cpu);
- release_irqlock(cpu);
- }
- #else
- #define irq_enter(cpu, irq) (++local_irq_count(cpu))
- #define irq_exit(cpu, irq) (--local_irq_count(cpu))
- #endif
- #define __STR(x) #x
- #define STR(x) __STR(x)
- #ifdef CONFIG_SMP
- /*
- * SMP has a few special interrupts for IPI messages
- */
- #endif /* CONFIG_SMP */
- /*
- * 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 (prof_buffer && current->pid) {
- #ifndef CONFIG_ARCH_S390X
- addr &= 0x7fffffff;
- #endif
- addr -= (unsigned long) &_stext;
- addr >>= prof_shift;
- /*
- * Don't ignore out-of-bounds EIP values silently,
- * put them into the last histogram slot, so if
- * present, they will show up as a sharp peak.
- */
- if (addr > prof_len-1)
- addr = prof_len-1;
- atomic_inc((atomic_t *)&prof_buffer[addr]);
- }
- }
- #include <asm/s390io.h>
- #define s390irq_spin_lock(irq)
- spin_lock(&(ioinfo[irq]->irq_lock))
- #define s390irq_spin_unlock(irq)
- spin_unlock(&(ioinfo[irq]->irq_lock))
- #define s390irq_spin_lock_irqsave(irq,flags)
- spin_lock_irqsave(&(ioinfo[irq]->irq_lock), flags)
- #define s390irq_spin_unlock_irqrestore(irq,flags)
- spin_unlock_irqrestore(&(ioinfo[irq]->irq_lock), flags)
- #define touch_nmi_watchdog() do { } while(0)
- #endif /* __KERNEL__ */
- #endif