diff options
Diffstat (limited to 'drivers/s390/cio/ioasm.h')
| -rw-r--r-- | drivers/s390/cio/ioasm.h | 49 |
1 files changed, 34 insertions, 15 deletions
diff --git a/drivers/s390/cio/ioasm.h b/drivers/s390/cio/ioasm.h index 75926279263..4d80fc67a06 100644 --- a/drivers/s390/cio/ioasm.h +++ b/drivers/s390/cio/ioasm.h @@ -3,6 +3,8 @@ #include <asm/chpid.h> #include <asm/schid.h> +#include "orb.h" +#include "cio.h" /* * TPI info structure @@ -23,21 +25,6 @@ struct tpi_info { * Some S390 specific IO instructions as inline */ -static inline int stsch(struct subchannel_id schid, struct schib *addr) -{ - register struct subchannel_id reg1 asm ("1") = schid; - int ccode; - - asm volatile( - " stsch 0(%3)\n" - " ipm %0\n" - " srl %0,28" - : "=d" (ccode), "=m" (*addr) - : "d" (reg1), "a" (addr) - : "cc"); - return ccode; -} - static inline int stsch_err(struct subchannel_id schid, struct schib *addr) { register struct subchannel_id reg1 asm ("1") = schid; @@ -102,6 +89,38 @@ static inline int tsch(struct subchannel_id schid, struct irb *addr) 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; |