229 lines
3.7 KiB
C
229 lines
3.7 KiB
C
#ifndef S390_CIO_IOASM_H
|
|
#define S390_CIO_IOASM_H
|
|
|
|
/*
|
|
* TPI info structure
|
|
*/
|
|
struct tpi_info {
|
|
__u32 reserved1 : 16; /* reserved 0x00000001 */
|
|
__u32 irq : 16; /* aka. subchannel number */
|
|
__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(int irq, volatile struct schib *addr)
|
|
{
|
|
int ccode;
|
|
|
|
__asm__ __volatile__(
|
|
" lr 1,%1\n"
|
|
" stsch 0(%2)\n"
|
|
" ipm %0\n"
|
|
" srl %0,28"
|
|
: "=d" (ccode)
|
|
: "d" (irq | 0x10000), "a" (addr)
|
|
: "cc", "1" );
|
|
return ccode;
|
|
}
|
|
|
|
static inline int msch(int irq, volatile struct schib *addr)
|
|
{
|
|
int ccode;
|
|
|
|
__asm__ __volatile__(
|
|
" lr 1,%1\n"
|
|
" msch 0(%2)\n"
|
|
" ipm %0\n"
|
|
" srl %0,28"
|
|
: "=d" (ccode)
|
|
: "d" (irq | 0x10000L), "a" (addr)
|
|
: "cc", "1" );
|
|
return ccode;
|
|
}
|
|
|
|
static inline int msch_err(int irq, volatile struct schib *addr)
|
|
{
|
|
int ccode;
|
|
|
|
__asm__ __volatile__(
|
|
" lhi %0,%3\n"
|
|
" lr 1,%1\n"
|
|
" msch 0(%2)\n"
|
|
"0: ipm %0\n"
|
|
" srl %0,28\n"
|
|
"1:\n"
|
|
#ifdef CONFIG_ARCH_S390X
|
|
".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" (irq | 0x10000L), "a" (addr), "K" (-EIO)
|
|
: "cc", "1" );
|
|
return ccode;
|
|
}
|
|
|
|
static inline int tsch(int irq, volatile struct irb *addr)
|
|
{
|
|
int ccode;
|
|
|
|
__asm__ __volatile__(
|
|
" lr 1,%1\n"
|
|
" tsch 0(%2)\n"
|
|
" ipm %0\n"
|
|
" srl %0,28"
|
|
: "=d" (ccode)
|
|
: "d" (irq | 0x10000L), "a" (addr)
|
|
: "cc", "1" );
|
|
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)
|
|
: "cc", "1" );
|
|
return ccode;
|
|
}
|
|
|
|
static inline int ssch(int irq, volatile struct orb *addr)
|
|
{
|
|
int ccode;
|
|
|
|
__asm__ __volatile__(
|
|
" lr 1,%1\n"
|
|
" ssch 0(%2)\n"
|
|
" ipm %0\n"
|
|
" srl %0,28"
|
|
: "=d" (ccode)
|
|
: "d" (irq | 0x10000L), "a" (addr)
|
|
: "cc", "1" );
|
|
return ccode;
|
|
}
|
|
|
|
static inline int rsch(int irq)
|
|
{
|
|
int ccode;
|
|
|
|
__asm__ __volatile__(
|
|
" lr 1,%1\n"
|
|
" rsch\n"
|
|
" ipm %0\n"
|
|
" srl %0,28"
|
|
: "=d" (ccode)
|
|
: "d" (irq | 0x10000L)
|
|
: "cc", "1" );
|
|
return ccode;
|
|
}
|
|
|
|
static inline int csch(int irq)
|
|
{
|
|
int ccode;
|
|
|
|
__asm__ __volatile__(
|
|
" lr 1,%1\n"
|
|
" csch\n"
|
|
" ipm %0\n"
|
|
" srl %0,28"
|
|
: "=d" (ccode)
|
|
: "d" (irq | 0x10000L)
|
|
: "cc", "1" );
|
|
return ccode;
|
|
}
|
|
|
|
static inline int hsch(int irq)
|
|
{
|
|
int ccode;
|
|
|
|
__asm__ __volatile__(
|
|
" lr 1,%1\n"
|
|
" hsch\n"
|
|
" ipm %0\n"
|
|
" srl %0,28"
|
|
: "=d" (ccode)
|
|
: "d" (irq | 0x10000L)
|
|
: "cc", "1" );
|
|
return ccode;
|
|
}
|
|
|
|
static inline int xsch(int irq)
|
|
{
|
|
int ccode;
|
|
|
|
__asm__ __volatile__(
|
|
" lr 1,%1\n"
|
|
" .insn rre,0xb2760000,%1,0\n"
|
|
" ipm %0\n"
|
|
" srl %0,28"
|
|
: "=d" (ccode)
|
|
: "d" (irq | 0x10000L)
|
|
: "cc", "1" );
|
|
return ccode;
|
|
}
|
|
|
|
static inline int chsc(void *chsc_area)
|
|
{
|
|
int cc;
|
|
|
|
__asm__ __volatile__ (
|
|
".insn rre,0xb25f0000,%1,0 \n\t"
|
|
"ipm %0 \n\t"
|
|
"srl %0,28 \n\t"
|
|
: "=d" (cc)
|
|
: "d" (chsc_area)
|
|
: "cc" );
|
|
|
|
return cc;
|
|
}
|
|
|
|
static inline int iac( void)
|
|
{
|
|
int ccode;
|
|
|
|
__asm__ __volatile__(
|
|
" iac 1\n"
|
|
" ipm %0\n"
|
|
" srl %0,28"
|
|
: "=d" (ccode) : : "cc", "1" );
|
|
return ccode;
|
|
}
|
|
|
|
static inline int rchp(int chpid)
|
|
{
|
|
int ccode;
|
|
|
|
__asm__ __volatile__(
|
|
" lr 1,%1\n"
|
|
" rchp\n"
|
|
" ipm %0\n"
|
|
" srl %0,28"
|
|
: "=d" (ccode)
|
|
: "d" (chpid)
|
|
: "cc", "1" );
|
|
return ccode;
|
|
}
|
|
|
|
#endif
|