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-rw-r--r--drivers/s390/cio/Makefile2
-rw-r--r--drivers/s390/cio/ioasm.c224
-rw-r--r--drivers/s390/cio/ioasm.h220
3 files changed, 238 insertions, 208 deletions
diff --git a/drivers/s390/cio/Makefile b/drivers/s390/cio/Makefile
index 2c7cf0b3c5a0..3ab9aedeb84a 100644
--- a/drivers/s390/cio/Makefile
+++ b/drivers/s390/cio/Makefile
@@ -6,7 +6,7 @@
CFLAGS_trace.o := -I$(src)
obj-y += airq.o blacklist.o chsc.o cio.o css.o chp.o idset.o isc.o \
- fcx.o itcw.o crw.o ccwreq.o trace.o
+ fcx.o itcw.o crw.o ccwreq.o trace.o ioasm.o
ccw_device-objs += device.o device_fsm.o device_ops.o
ccw_device-objs += device_id.o device_pgid.o device_status.o
obj-y += ccw_device.o cmf.o
diff --git a/drivers/s390/cio/ioasm.c b/drivers/s390/cio/ioasm.c
new file mode 100644
index 000000000000..98984818618f
--- /dev/null
+++ b/drivers/s390/cio/ioasm.c
@@ -0,0 +1,224 @@
+/*
+ * Channel subsystem I/O instructions.
+ */
+
+#include <linux/export.h>
+
+#include <asm/chpid.h>
+#include <asm/schid.h>
+#include <asm/crw.h>
+
+#include "ioasm.h"
+#include "orb.h"
+#include "cio.h"
+
+int stsch(struct subchannel_id schid, struct schib *addr)
+{
+ register struct subchannel_id reg1 asm ("1") = schid;
+ int ccode = -EIO;
+
+ asm volatile(
+ " stsch 0(%3)\n"
+ "0: ipm %0\n"
+ " srl %0,28\n"
+ "1:\n"
+ EX_TABLE(0b, 1b)
+ : "+d" (ccode), "=m" (*addr)
+ : "d" (reg1), "a" (addr)
+ : "cc");
+ trace_s390_cio_stsch(schid, addr, ccode);
+
+ return ccode;
+}
+EXPORT_SYMBOL(stsch);
+
+int msch(struct subchannel_id schid, struct schib *addr)
+{
+ register struct subchannel_id reg1 asm ("1") = schid;
+ int ccode = -EIO;
+
+ asm volatile(
+ " msch 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");
+ trace_s390_cio_msch(schid, addr, ccode);
+
+ return ccode;
+}
+
+int tsch(struct subchannel_id schid, struct irb *addr)
+{
+ register struct subchannel_id reg1 asm ("1") = schid;
+ int ccode;
+
+ asm volatile(
+ " tsch 0(%3)\n"
+ " ipm %0\n"
+ " srl %0,28"
+ : "=d" (ccode), "=m" (*addr)
+ : "d" (reg1), "a" (addr)
+ : "cc");
+ trace_s390_cio_tsch(schid, addr, ccode);
+
+ return ccode;
+}
+
+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");
+ trace_s390_cio_ssch(schid, addr, ccode);
+
+ return ccode;
+}
+EXPORT_SYMBOL(ssch);
+
+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");
+ trace_s390_cio_csch(schid, ccode);
+
+ return ccode;
+}
+EXPORT_SYMBOL(csch);
+
+int tpi(struct tpi_info *addr)
+{
+ int ccode;
+
+ asm volatile(
+ " tpi 0(%2)\n"
+ " ipm %0\n"
+ " srl %0,28"
+ : "=d" (ccode), "=m" (*addr)
+ : "a" (addr)
+ : "cc");
+ trace_s390_cio_tpi(addr, ccode);
+
+ return ccode;
+}
+
+int chsc(void *chsc_area)
+{
+ typedef struct { char _[4096]; } addr_type;
+ int cc;
+
+ asm volatile(
+ " .insn rre,0xb25f0000,%2,0\n"
+ " ipm %0\n"
+ " srl %0,28\n"
+ : "=d" (cc), "=m" (*(addr_type *) chsc_area)
+ : "d" (chsc_area), "m" (*(addr_type *) chsc_area)
+ : "cc");
+ trace_s390_cio_chsc(chsc_area, cc);
+
+ return cc;
+}
+EXPORT_SYMBOL(chsc);
+
+int rchp(struct chp_id chpid)
+{
+ register struct chp_id reg1 asm ("1") = chpid;
+ int ccode;
+
+ asm volatile(
+ " lr 1,%1\n"
+ " rchp\n"
+ " ipm %0\n"
+ " srl %0,28"
+ : "=d" (ccode) : "d" (reg1) : "cc");
+ trace_s390_cio_rchp(chpid, ccode);
+
+ return ccode;
+}
+
+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", "memory");
+ trace_s390_cio_rsch(schid, ccode);
+
+ return ccode;
+}
+
+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");
+ trace_s390_cio_hsch(schid, ccode);
+
+ return ccode;
+}
+
+int xsch(struct subchannel_id schid)
+{
+ register struct subchannel_id reg1 asm("1") = schid;
+ int ccode;
+
+ asm volatile(
+ " xsch\n"
+ " ipm %0\n"
+ " srl %0,28"
+ : "=d" (ccode)
+ : "d" (reg1)
+ : "cc");
+ trace_s390_cio_xsch(schid, ccode);
+
+ return ccode;
+}
+
+int stcrw(struct crw *crw)
+{
+ int ccode;
+
+ asm volatile(
+ " stcrw 0(%2)\n"
+ " ipm %0\n"
+ " srl %0,28\n"
+ : "=d" (ccode), "=m" (*crw)
+ : "a" (crw)
+ : "cc");
+ trace_s390_cio_stcrw(crw, ccode);
+
+ return ccode;
+}
diff --git a/drivers/s390/cio/ioasm.h b/drivers/s390/cio/ioasm.h
index 11e255a4fbad..b31ee6bff1e4 100644
--- a/drivers/s390/cio/ioasm.h
+++ b/drivers/s390/cio/ioasm.h
@@ -9,214 +9,20 @@
#include "trace.h"
/*
- * Some S390 specific IO instructions as inline
+ * Some S390 specific IO instructions
*/
-static inline int stsch(struct subchannel_id schid, struct schib *addr)
-{
- register struct subchannel_id reg1 asm ("1") = schid;
- int ccode = -EIO;
-
- asm volatile(
- " stsch 0(%3)\n"
- "0: ipm %0\n"
- " srl %0,28\n"
- "1:\n"
- EX_TABLE(0b,1b)
- : "+d" (ccode), "=m" (*addr)
- : "d" (reg1), "a" (addr)
- : "cc");
- trace_s390_cio_stsch(schid, addr, ccode);
-
- return ccode;
-}
-
-static inline int msch(struct subchannel_id schid, struct schib *addr)
-{
- register struct subchannel_id reg1 asm ("1") = schid;
- int ccode = -EIO;
-
- asm volatile(
- " msch 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");
- trace_s390_cio_msch(schid, addr, ccode);
-
- return ccode;
-}
-
-static inline int tsch(struct subchannel_id schid, struct irb *addr)
-{
- register struct subchannel_id reg1 asm ("1") = schid;
- int ccode;
-
- asm volatile(
- " tsch 0(%3)\n"
- " ipm %0\n"
- " srl %0,28"
- : "=d" (ccode), "=m" (*addr)
- : "d" (reg1), "a" (addr)
- : "cc");
- trace_s390_cio_tsch(schid, addr, ccode);
-
- 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");
- trace_s390_cio_ssch(schid, addr, ccode);
-
- 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");
- trace_s390_cio_csch(schid, ccode);
-
- return ccode;
-}
-
-static inline int tpi(struct tpi_info *addr)
-{
- int ccode;
-
- asm volatile(
- " tpi 0(%2)\n"
- " ipm %0\n"
- " srl %0,28"
- : "=d" (ccode), "=m" (*addr)
- : "a" (addr)
- : "cc");
- trace_s390_cio_tpi(addr, ccode);
-
- return ccode;
-}
-
-static inline int chsc(void *chsc_area)
-{
- typedef struct { char _[4096]; } addr_type;
- int cc;
-
- asm volatile(
- " .insn rre,0xb25f0000,%2,0\n"
- " ipm %0\n"
- " srl %0,28\n"
- : "=d" (cc), "=m" (*(addr_type *) chsc_area)
- : "d" (chsc_area), "m" (*(addr_type *) chsc_area)
- : "cc");
- trace_s390_cio_chsc(chsc_area, cc);
-
- return cc;
-}
-
-static inline int rchp(struct chp_id chpid)
-{
- register struct chp_id reg1 asm ("1") = chpid;
- int ccode;
-
- asm volatile(
- " lr 1,%1\n"
- " rchp\n"
- " ipm %0\n"
- " srl %0,28"
- : "=d" (ccode) : "d" (reg1) : "cc");
- trace_s390_cio_rchp(chpid, ccode);
-
- 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", "memory");
- trace_s390_cio_rsch(schid, ccode);
-
- 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");
- trace_s390_cio_hsch(schid, ccode);
-
- return ccode;
-}
-
-static inline int xsch(struct subchannel_id schid)
-{
- register struct subchannel_id reg1 asm("1") = schid;
- int ccode;
-
- asm volatile(
- " xsch\n"
- " ipm %0\n"
- " srl %0,28"
- : "=d" (ccode)
- : "d" (reg1)
- : "cc");
- trace_s390_cio_xsch(schid, ccode);
-
- return ccode;
-}
-
-static inline int stcrw(struct crw *crw)
-{
- int ccode;
-
- asm volatile(
- " stcrw 0(%2)\n"
- " ipm %0\n"
- " srl %0,28\n"
- : "=d" (ccode), "=m" (*crw)
- : "a" (crw)
- : "cc");
- trace_s390_cio_stcrw(crw, ccode);
-
- return ccode;
-}
+int stsch(struct subchannel_id schid, struct schib *addr);
+int msch(struct subchannel_id schid, struct schib *addr);
+int tsch(struct subchannel_id schid, struct irb *addr);
+int ssch(struct subchannel_id schid, union orb *addr);
+int csch(struct subchannel_id schid);
+int tpi(struct tpi_info *addr);
+int chsc(void *chsc_area);
+int rchp(struct chp_id chpid);
+int rsch(struct subchannel_id schid);
+int hsch(struct subchannel_id schid);
+int xsch(struct subchannel_id schid);
+int stcrw(struct crw *crw);
#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 04:51:12 +0000