irq.h

this SRC packet is the headfiles that MIZI vivi bootloader needed when compling

#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 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;

#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_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 );

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 {