diff options
Diffstat (limited to 'drivers/s390/cio/ioasm.h')
| -rw-r--r-- | drivers/s390/cio/ioasm.h | 86 |
1 files changed, 61 insertions, 25 deletions
diff --git a/drivers/s390/cio/ioasm.h b/drivers/s390/cio/ioasm.h index 45480a2bc4c0..95a9462f9a91 100644 --- a/drivers/s390/cio/ioasm.h +++ b/drivers/s390/cio/ioasm.h @@ -1,12 +1,13 @@ #ifndef S390_CIO_IOASM_H #define S390_CIO_IOASM_H +#include "schid.h" + /* * TPI info structure */ struct tpi_info { - __u32 reserved1 : 16; /* reserved 0x00000001 */ - __u32 irq : 16; /* aka. subchannel number */ + struct subchannel_id schid; __u32 intparm; /* interruption parameter */ __u32 adapter_IO : 1; __u32 reserved2 : 1; @@ -21,7 +22,8 @@ struct tpi_info { * Some S390 specific IO instructions as inline */ -static inline int stsch(int irq, volatile struct schib *addr) +static inline int stsch(struct subchannel_id schid, + volatile struct schib *addr) { int ccode; @@ -31,12 +33,42 @@ static inline int stsch(int irq, volatile struct schib *addr) " ipm %0\n" " srl %0,28" : "=d" (ccode) - : "d" (irq | 0x10000), "a" (addr) + : "d" (schid), "a" (addr), "m" (*addr) + : "cc", "1" ); + return ccode; +} + +static inline int stsch_err(struct subchannel_id schid, + volatile struct schib *addr) +{ + int ccode; + + __asm__ __volatile__( + " lhi %0,%3\n" + " lr 1,%1\n" + " stsch 0(%2)\n" + "0: ipm %0\n" + " srl %0,28\n" + "1:\n" +#ifdef CONFIG_64BIT + ".section __ex_table,\"a\"\n" + " .align 8\n" + " .quad 0b,1b\n" + ".previous" +#else + ".section __ex_table,\"a\"\n" + " .align 4\n" + " .long 0b,1b\n" + ".previous" +#endif + : "=&d" (ccode) + : "d" (schid), "a" (addr), "K" (-EIO), "m" (*addr) : "cc", "1" ); return ccode; } -static inline int msch(int irq, volatile struct schib *addr) +static inline int msch(struct subchannel_id schid, + volatile struct schib *addr) { int ccode; @@ -46,12 +78,13 @@ static inline int msch(int irq, volatile struct schib *addr) " ipm %0\n" " srl %0,28" : "=d" (ccode) - : "d" (irq | 0x10000L), "a" (addr) + : "d" (schid), "a" (addr), "m" (*addr) : "cc", "1" ); return ccode; } -static inline int msch_err(int irq, volatile struct schib *addr) +static inline int msch_err(struct subchannel_id schid, + volatile struct schib *addr) { int ccode; @@ -62,7 +95,7 @@ static inline int msch_err(int irq, volatile struct schib *addr) "0: ipm %0\n" " srl %0,28\n" "1:\n" -#ifdef CONFIG_ARCH_S390X +#ifdef CONFIG_64BIT ".section __ex_table,\"a\"\n" " .align 8\n" " .quad 0b,1b\n" @@ -74,12 +107,13 @@ static inline int msch_err(int irq, volatile struct schib *addr) ".previous" #endif : "=&d" (ccode) - : "d" (irq | 0x10000L), "a" (addr), "K" (-EIO) + : "d" (schid), "a" (addr), "K" (-EIO), "m" (*addr) : "cc", "1" ); return ccode; } -static inline int tsch(int irq, volatile struct irb *addr) +static inline int tsch(struct subchannel_id schid, + volatile struct irb *addr) { int ccode; @@ -89,7 +123,7 @@ static inline int tsch(int irq, volatile struct irb *addr) " ipm %0\n" " srl %0,28" : "=d" (ccode) - : "d" (irq | 0x10000L), "a" (addr) + : "d" (schid), "a" (addr), "m" (*addr) : "cc", "1" ); return ccode; } @@ -103,12 +137,13 @@ static inline int tpi( volatile struct tpi_info *addr) " ipm %0\n" " srl %0,28" : "=d" (ccode) - : "a" (addr) + : "a" (addr), "m" (*addr) : "cc", "1" ); return ccode; } -static inline int ssch(int irq, volatile struct orb *addr) +static inline int ssch(struct subchannel_id schid, + volatile struct orb *addr) { int ccode; @@ -118,12 +153,12 @@ static inline int ssch(int irq, volatile struct orb *addr) " ipm %0\n" " srl %0,28" : "=d" (ccode) - : "d" (irq | 0x10000L), "a" (addr) + : "d" (schid), "a" (addr), "m" (*addr) : "cc", "1" ); return ccode; } -static inline int rsch(int irq) +static inline int rsch(struct subchannel_id schid) { int ccode; @@ -133,12 +168,12 @@ static inline int rsch(int irq) " ipm %0\n" " srl %0,28" : "=d" (ccode) - : "d" (irq | 0x10000L) + : "d" (schid) : "cc", "1" ); return ccode; } -static inline int csch(int irq) +static inline int csch(struct subchannel_id schid) { int ccode; @@ -148,12 +183,12 @@ static inline int csch(int irq) " ipm %0\n" " srl %0,28" : "=d" (ccode) - : "d" (irq | 0x10000L) + : "d" (schid) : "cc", "1" ); return ccode; } -static inline int hsch(int irq) +static inline int hsch(struct subchannel_id schid) { int ccode; @@ -163,12 +198,12 @@ static inline int hsch(int irq) " ipm %0\n" " srl %0,28" : "=d" (ccode) - : "d" (irq | 0x10000L) + : "d" (schid) : "cc", "1" ); return ccode; } -static inline int xsch(int irq) +static inline int xsch(struct subchannel_id schid) { int ccode; @@ -178,21 +213,22 @@ static inline int xsch(int irq) " ipm %0\n" " srl %0,28" : "=d" (ccode) - : "d" (irq | 0x10000L) + : "d" (schid) : "cc", "1" ); return ccode; } static inline int chsc(void *chsc_area) { + typedef struct { char _[4096]; } addr_type; int cc; __asm__ __volatile__ ( - ".insn rre,0xb25f0000,%1,0 \n\t" + ".insn rre,0xb25f0000,%2,0 \n\t" "ipm %0 \n\t" "srl %0,28 \n\t" - : "=d" (cc) - : "d" (chsc_area) + : "=d" (cc), "=m" (*(addr_type *) chsc_area) + : "d" (chsc_area), "m" (*(addr_type *) chsc_area) : "cc" ); return cc; |