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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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2ab59de7c5
Replace the current semi-arbitrary distribution of inline assemblies: - Inline assemblies used by CIO go into ioasm.h - Data definitions used by inline assemblies go into cio.h Beyond cleaning up the current structure this is also required for use of tracepoints in inline assemblies introduced by a follow-on patch. Signed-off-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Acked-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
198 lines
3.3 KiB
C
198 lines
3.3 KiB
C
#ifndef S390_CIO_IOASM_H
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#define S390_CIO_IOASM_H
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#include <asm/chpid.h>
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#include <asm/schid.h>
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#include <asm/crw.h>
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#include "orb.h"
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#include "cio.h"
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/*
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* Some S390 specific IO instructions as inline
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*/
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static inline int stsch(struct subchannel_id schid, struct schib *addr)
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{
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register struct subchannel_id reg1 asm ("1") = schid;
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int ccode = -EIO;
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asm volatile(
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" stsch 0(%3)\n"
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"0: ipm %0\n"
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" srl %0,28\n"
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"1:\n"
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EX_TABLE(0b,1b)
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: "+d" (ccode), "=m" (*addr)
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: "d" (reg1), "a" (addr)
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: "cc");
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return ccode;
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}
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static inline int msch(struct subchannel_id schid, struct schib *addr)
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{
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register struct subchannel_id reg1 asm ("1") = schid;
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int ccode = -EIO;
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asm volatile(
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" msch 0(%2)\n"
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"0: ipm %0\n"
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" srl %0,28\n"
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"1:\n"
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EX_TABLE(0b,1b)
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: "+d" (ccode)
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: "d" (reg1), "a" (addr), "m" (*addr)
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: "cc");
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return ccode;
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}
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static inline int tsch(struct subchannel_id schid, struct irb *addr)
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{
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register struct subchannel_id reg1 asm ("1") = schid;
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int ccode;
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asm volatile(
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" tsch 0(%3)\n"
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" ipm %0\n"
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" srl %0,28"
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: "=d" (ccode), "=m" (*addr)
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: "d" (reg1), "a" (addr)
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: "cc");
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return ccode;
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}
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static inline int ssch(struct subchannel_id schid, union orb *addr)
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{
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register struct subchannel_id reg1 asm("1") = schid;
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int ccode = -EIO;
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asm volatile(
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" ssch 0(%2)\n"
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"0: ipm %0\n"
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" srl %0,28\n"
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"1:\n"
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EX_TABLE(0b, 1b)
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: "+d" (ccode)
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: "d" (reg1), "a" (addr), "m" (*addr)
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: "cc", "memory");
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return ccode;
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}
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static inline int csch(struct subchannel_id schid)
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{
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register struct subchannel_id reg1 asm("1") = schid;
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int ccode;
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asm volatile(
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" csch\n"
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" ipm %0\n"
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" srl %0,28"
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: "=d" (ccode)
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: "d" (reg1)
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: "cc");
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return ccode;
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}
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static inline int tpi(struct tpi_info *addr)
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{
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int ccode;
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asm volatile(
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" tpi 0(%2)\n"
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" ipm %0\n"
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" srl %0,28"
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: "=d" (ccode), "=m" (*addr)
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: "a" (addr)
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: "cc");
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return ccode;
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}
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static inline int chsc(void *chsc_area)
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{
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typedef struct { char _[4096]; } addr_type;
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int cc;
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asm volatile(
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" .insn rre,0xb25f0000,%2,0\n"
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" ipm %0\n"
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" srl %0,28\n"
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: "=d" (cc), "=m" (*(addr_type *) chsc_area)
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: "d" (chsc_area), "m" (*(addr_type *) chsc_area)
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: "cc");
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return cc;
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}
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static inline int rchp(struct chp_id chpid)
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{
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register struct chp_id reg1 asm ("1") = chpid;
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int ccode;
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asm volatile(
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" lr 1,%1\n"
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" rchp\n"
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" ipm %0\n"
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" srl %0,28"
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: "=d" (ccode) : "d" (reg1) : "cc");
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return ccode;
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}
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static inline int rsch(struct subchannel_id schid)
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{
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register struct subchannel_id reg1 asm("1") = schid;
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int ccode;
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asm volatile(
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" rsch\n"
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" ipm %0\n"
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" srl %0,28"
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: "=d" (ccode)
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: "d" (reg1)
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: "cc", "memory");
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return ccode;
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}
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static inline int hsch(struct subchannel_id schid)
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{
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register struct subchannel_id reg1 asm("1") = schid;
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int ccode;
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asm volatile(
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" hsch\n"
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" ipm %0\n"
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" srl %0,28"
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: "=d" (ccode)
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: "d" (reg1)
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: "cc");
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return ccode;
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}
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static inline int xsch(struct subchannel_id schid)
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{
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register struct subchannel_id reg1 asm("1") = schid;
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int ccode;
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asm volatile(
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" xsch\n"
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" ipm %0\n"
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" srl %0,28"
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: "=d" (ccode)
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: "d" (reg1)
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: "cc");
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return ccode;
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}
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static inline int stcrw(struct crw *crw)
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{
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int ccode;
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asm volatile(
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" stcrw 0(%2)\n"
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" ipm %0\n"
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" srl %0,28\n"
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: "=d" (ccode), "=m" (*crw)
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: "a" (crw)
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: "cc");
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return ccode;
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}
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#endif
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