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[S390] cio: Introduce subchannel->private.

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Introduce a private pointer in struct subchannel to store
per-subchannel type data (cannot use dev->priv since this
is already used for something else).

Create a new header io_sch.h for I/O subchannel specific structures
and instructions.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Cornelia Huck
2008-01-26 14:10:43 +01:00
committed by Martin Schwidefsky
parent bc698bcf88
commit cd6b4f27b9
12 changed files with 261 additions and 212 deletions
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66
drivers/s390/cio/ioasm.h
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@@ -109,72 +109,6 @@ static inline int tpi( volatile struct tpi_info *addr)
return ccode;
}
static inline int ssch(struct subchannel_id schid,
volatile struct orb *addr)
{
register struct subchannel_id reg1 asm ("1") = schid;
int ccode;
asm volatile(
" ssch 0(%2)\n"
" ipm %0\n"
" srl %0,28"
: "=d" (ccode) : "d" (reg1), "a" (addr), "m" (*addr) : "cc");
return ccode;
}
static inline int rsch(struct subchannel_id schid)
{
register struct subchannel_id reg1 asm ("1") = schid;
int ccode;
asm volatile(
" rsch\n"
" ipm %0\n"
" srl %0,28"
: "=d" (ccode) : "d" (reg1) : "cc");
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 hsch(struct subchannel_id schid)
{
register struct subchannel_id reg1 asm ("1") = schid;
int ccode;
asm volatile(
" hsch\n"
" ipm %0\n"
" srl %0,28"
: "=d" (ccode) : "d" (reg1) : "cc");
return ccode;
}
static inline int xsch(struct subchannel_id schid)
{
register struct subchannel_id reg1 asm ("1") = schid;
int ccode;
asm volatile(
" .insn rre,0xb2760000,%1,0\n"
" ipm %0\n"
" srl %0,28"
: "=d" (ccode) : "d" (reg1) : "cc");
return ccode;
}
static inline int chsc(void *chsc_area)
{
typedef struct { char _[4096]; } addr_type;