#ifndef S390_CIO_IOASM_H #define S390_CIO_IOASM_H #include <asm/chpid.h> #include "schid.h" /* * 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)); /* * Some S390 specific IO instructions as inline */ static inline int stsch(struct subchannel_id schid, volatile struct schib *addr) { register struct subchannel_id reg1 asm ("1") = schid; int ccode; asm volatile( " stsch 0(%2)\n" " ipm %0\n" " srl %0,28" : "=d" (ccode) : "d" (reg1), "a" (addr), "m" (*addr) : "cc"); return ccode; } static inline int stsch_err(struct subchannel_id schid, volatile struct schib *addr) { register struct subchannel_id reg1 asm ("1") = schid; int ccode = -EIO; asm volatile( " stsch 0(%2)\n" "0: ipm %0\n" " srl %0,28\n" "1:\n" EX_TABLE(0b,1b) : "+d" (ccode) : "d" (reg1), "a" (addr), "m" (*addr) : "cc"); return ccode; } static inline int msch(struct subchannel_id schid, volatile 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, volatile 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" EX_TABLE(0b,1b) : "+d" (ccode) : "d" (reg1), "a" (addr), "m" (*addr) : "cc"); return ccode; } static inline int tsch(struct subchannel_id schid, volatile struct irb *addr) { register struct subchannel_id reg1 asm ("1") = schid; int ccode; asm volatile( " tsch 0(%2)\n" " ipm %0\n" " srl %0,28" : "=d" (ccode) : "d" (reg1), "a" (addr), "m" (*addr) : "cc"); return ccode; } static inline int tpi( volatile struct tpi_info *addr) { int ccode; asm volatile( " tpi 0(%1)\n" " ipm %0\n" " srl %0,28" : "=d" (ccode) : "a" (addr), "m" (*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; } static inline int rchp(struct chp_id chpid) { register struct chp_id reg1 asm ("1") = chpid; int ccode; asm volatile( " lr 1,%1\n" " rchp\n" " ipm %0\n" " srl %0,28" : "=d" (ccode) : "d" (reg1) : "cc"); return ccode; } #endif