diff options
Diffstat (limited to 'qemu/pc-bios/s390-ccw/cio.h')
-rw-r--r-- | qemu/pc-bios/s390-ccw/cio.h | 342 |
1 files changed, 0 insertions, 342 deletions
diff --git a/qemu/pc-bios/s390-ccw/cio.h b/qemu/pc-bios/s390-ccw/cio.h deleted file mode 100644 index f5b4549ea..000000000 --- a/qemu/pc-bios/s390-ccw/cio.h +++ /dev/null @@ -1,342 +0,0 @@ -/* - * Channel IO definitions - * - * Copyright (c) 2013 Alexander Graf <agraf@suse.de> - * - * Inspired by various s390 headers in Linux 3.9. - * - * This work is licensed under the terms of the GNU GPL, version 2 or (at - * your option) any later version. See the COPYING file in the top-level - * directory. - */ - -#ifndef CIO_H -#define CIO_H - -/* - * path management control word - */ -struct pmcw { - __u32 intparm; /* interruption parameter */ - __u32 qf : 1; /* qdio facility */ - __u32 w : 1; - __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 : 18; /* reserved zeros */ - __u32 mbfc : 1; /* measurement block format control */ - __u32 xmwme : 1; /* extended measurement word mode enable */ - __u32 csense : 1; /* concurrent sense; can be enabled ...*/ - /* ... per MSCH, however, if facility */ - /* ... is not installed, this results */ - /* ... in an operand exception. */ -} __attribute__ ((packed)); - -/* Target SCHIB configuration. */ -struct schib_config { - __u64 mba; - __u32 intparm; - __u16 mbi; - __u32 isc:3; - __u32 ena:1; - __u32 mme:2; - __u32 mp:1; - __u32 csense:1; - __u32 mbfc:1; -} __attribute__ ((packed)); - -struct scsw { - __u16 flags; - __u16 ctrl; - __u32 cpa; - __u8 dstat; - __u8 cstat; - __u16 count; -} __attribute__ ((packed)); - -#define SCSW_FCTL_CLEAR_FUNC 0x1000 -#define SCSW_FCTL_HALT_FUNC 0x2000 -#define SCSW_FCTL_START_FUNC 0x4000 - -/* - * subchannel information block - */ -struct schib { - struct pmcw pmcw; /* path management control word */ - struct scsw scsw; /* subchannel status word */ - __u64 mba; /* measurement block address */ - __u8 mda[4]; /* model dependent area */ -} __attribute__ ((packed,aligned(4))); - -struct subchannel_id { - __u32 cssid : 8; - __u32 : 4; - __u32 m : 1; - __u32 ssid : 2; - __u32 one : 1; - __u32 sch_no : 16; -} __attribute__ ((packed, aligned(4))); - -struct chsc_header { - __u16 length; - __u16 code; -} __attribute__((packed)); - -struct chsc_area_sda { - struct chsc_header request; - __u8 reserved1:4; - __u8 format:4; - __u8 reserved2; - __u16 operation_code; - __u32 reserved3; - __u32 reserved4; - __u32 operation_data_area[252]; - struct chsc_header response; - __u32 reserved5:4; - __u32 format2:4; - __u32 reserved6:24; -} __attribute__((packed)); - -/* - * TPI info structure - */ -struct tpi_info { - struct subchannel_id schid; - __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)); - -/* channel command word (type 1) */ -struct ccw1 { - __u8 cmd_code; - __u8 flags; - __u16 count; - __u32 cda; -} __attribute__ ((packed)); - -#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_NOOP 0x03 -#define CCW_CMD_BASIC_SENSE 0x04 -#define CCW_CMD_TIC 0x08 -#define CCW_CMD_SENSE_ID 0xe4 - -#define CCW_CMD_SET_VQ 0x13 -#define CCW_CMD_VDEV_RESET 0x33 -#define CCW_CMD_READ_FEAT 0x12 -#define CCW_CMD_WRITE_FEAT 0x11 -#define CCW_CMD_READ_CONF 0x22 -#define CCW_CMD_WRITE_CONF 0x21 -#define CCW_CMD_WRITE_STATUS 0x31 -#define CCW_CMD_SET_IND 0x43 -#define CCW_CMD_SET_CONF_IND 0x53 -#define CCW_CMD_READ_VQ_CONF 0x32 - -/* - * Command-mode operation request block - */ -struct cmd_orb { - __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))); - -struct ciw { - __u8 type; - __u8 command; - __u16 count; -}; - -/* - * sense-id response buffer layout - */ -struct senseid { - /* 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 */ - struct ciw ciw[62]; -} __attribute__ ((packed, aligned(4))); - -/* interruption response block */ -struct irb { - struct scsw scsw; - __u32 esw[5]; - __u32 ecw[8]; - __u32 emw[8]; -} __attribute__ ((packed, aligned(4))); - -/* - * Some S390 specific IO instructions as inline - */ - -static inline int stsch_err(struct subchannel_id schid, struct schib *addr) -{ - register struct subchannel_id reg1 asm ("1") = schid; - int ccode = -EIO; - - asm volatile( - " stsch 0(%3)\n" - "0: ipm %0\n" - " srl %0,28\n" - "1:\n" - : "+d" (ccode), "=m" (*addr) - : "d" (reg1), "a" (addr) - : "cc"); - return ccode; -} - -static inline int msch(struct subchannel_id schid, struct schib *addr) -{ - register struct subchannel_id reg1 asm ("1") = schid; - int ccode; - - asm volatile( - " msch 0(%2)\n" - " ipm %0\n" - " srl %0,28" - : "=d" (ccode) - : "d" (reg1), "a" (addr), "m" (*addr) - : "cc"); - return ccode; -} - -static inline int msch_err(struct subchannel_id schid, struct schib *addr) -{ - register struct subchannel_id reg1 asm ("1") = schid; - int ccode = -EIO; - - asm volatile( - " msch 0(%2)\n" - "0: ipm %0\n" - " srl %0,28\n" - "1:\n" - : "+d" (ccode) - : "d" (reg1), "a" (addr), "m" (*addr) - : "cc"); - return ccode; -} - -static inline int tsch(struct subchannel_id schid, struct irb *addr) -{ - register struct subchannel_id reg1 asm ("1") = schid; - int ccode; - - asm volatile( - " tsch 0(%3)\n" - " ipm %0\n" - " srl %0,28" - : "=d" (ccode), "=m" (*addr) - : "d" (reg1), "a" (addr) - : "cc"); - return ccode; -} - -static inline int ssch(struct subchannel_id schid, struct cmd_orb *addr) -{ - register struct subchannel_id reg1 asm("1") = schid; - int ccode = -EIO; - - asm volatile( - " ssch 0(%2)\n" - "0: ipm %0\n" - " srl %0,28\n" - "1:\n" - : "+d" (ccode) - : "d" (reg1), "a" (addr), "m" (*addr) - : "cc", "memory"); - return ccode; -} - -static inline int csch(struct subchannel_id schid) -{ - register struct subchannel_id reg1 asm("1") = schid; - int ccode; - - asm volatile( - " csch\n" - " ipm %0\n" - " srl %0,28" - : "=d" (ccode) - : "d" (reg1) - : "cc"); - return ccode; -} - -static inline int tpi(struct tpi_info *addr) -{ - int ccode; - - asm volatile( - " tpi 0(%2)\n" - " ipm %0\n" - " srl %0,28" - : "=d" (ccode), "=m" (*addr) - : "a" (addr) - : "cc"); - return ccode; -} - -static inline int chsc(void *chsc_area) -{ - typedef struct { char _[4096]; } addr_type; - int cc; - - asm volatile( - " .insn rre,0xb25f0000,%2,0\n" - " ipm %0\n" - " srl %0,28\n" - : "=d" (cc), "=m" (*(addr_type *) chsc_area) - : "d" (chsc_area), "m" (*(addr_type *) chsc_area) - : "cc"); - return cc; -} - -#endif /* CIO_H */ |