diff options
Diffstat (limited to 'drivers/s390/cio/ioasm.h')
-rw-r--r-- | drivers/s390/cio/ioasm.h | 169 |
1 files changed, 15 insertions, 154 deletions
diff --git a/drivers/s390/cio/ioasm.h b/drivers/s390/cio/ioasm.h index 4d80fc67a06b..b31ee6bff1e4 100644 --- a/drivers/s390/cio/ioasm.h +++ b/drivers/s390/cio/ioasm.h @@ -3,165 +3,26 @@ #include <asm/chpid.h> #include <asm/schid.h> +#include <asm/crw.h> #include "orb.h" #include "cio.h" +#include "trace.h" /* - * TPI info structure + * Some S390 specific IO instructions */ -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_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" - EX_TABLE(0b,1b) - : "+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" - EX_TABLE(0b,1b) - : "+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, union 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" - EX_TABLE(0b, 1b) - : "+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; -} - -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; -} +int stsch(struct subchannel_id schid, struct schib *addr); +int msch(struct subchannel_id schid, struct schib *addr); +int tsch(struct subchannel_id schid, struct irb *addr); +int ssch(struct subchannel_id schid, union orb *addr); +int csch(struct subchannel_id schid); +int tpi(struct tpi_info *addr); +int chsc(void *chsc_area); +int rchp(struct chp_id chpid); +int rsch(struct subchannel_id schid); +int hsch(struct subchannel_id schid); +int xsch(struct subchannel_id schid); +int stcrw(struct crw *crw); #endif |