From dbda8ce5407c731a0108a35db3e058d5d350dd80 Mon Sep 17 00:00:00 2001
From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Tue, 15 Mar 2011 17:08:24 +0100
Subject: [S390] cio: move asms to generic header

The ssch and csch functions are not I/O subchannel specific,
thus move them from io_sch.h to ioasm.h

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 drivers/s390/cio/ioasm.h | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

(limited to 'drivers/s390/cio/ioasm.h')

diff --git a/drivers/s390/cio/ioasm.h b/drivers/s390/cio/ioasm.h
index fac06155773f..4d80fc67a06b 100644
--- a/drivers/s390/cio/ioasm.h
+++ b/drivers/s390/cio/ioasm.h
@@ -3,6 +3,8 @@
 
 #include <asm/chpid.h>
 #include <asm/schid.h>
+#include "orb.h"
+#include "cio.h"
 
 /*
  * TPI info structure
@@ -87,6 +89,38 @@ static inline int tsch(struct subchannel_id schid, struct irb *addr)
 	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");
+	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 tpi(struct tpi_info *addr)
 {
 	int ccode;
-- 
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