Commit f62ad907 authored by Heiko Carstens's avatar Heiko Carstens
Browse files

s390/cio/qdio: Convert to use flag output macros 



Use flag output macros in inline asm to allow for better code generation if
the compiler has support for the flag output constraint.

Reviewed-by: default avatarJuergen Christ <jchrist@linux.ibm.com>
Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
parent 6816e212

drivers/s390/cio/qdio_main.c

+13 −15
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 
#include <linux/atomic.h>

#include <asm/debug.h>

#include <asm/qdio.h>

#include <asm/asm.h>

#include <asm/ipl.h>



#include "cio.h"
@@ -42,13 +43,12 @@ static inline int do_siga_sync(unsigned long schid, 
		"	lgr	2,%[out]\n"

		"	lgr	3,%[in]\n"

		"	siga	0\n"

		"	ipm	%[cc]\n"

		"	srl	%[cc],28\n"

		: [cc] "=&d" (cc)

		CC_IPM(cc)

		: CC_OUT(cc, cc)

		: [fc] "d" (fc), [schid] "d" (schid),

		  [out] "d" (out_mask), [in] "d" (in_mask)

		: "cc", "0", "1", "2", "3");

	return cc;

		: CC_CLOBBER_LIST("0", "1", "2", "3"));

	return CC_TRANSFORM(cc);

}



static inline int do_siga_input(unsigned long schid, unsigned long mask,
@@ -61,12 +61,11 @@ static inline int do_siga_input(unsigned long schid, unsigned long mask, 
		"	lgr	1,%[schid]\n"

		"	lgr	2,%[mask]\n"

		"	siga	0\n"

		"	ipm	%[cc]\n"

		"	srl	%[cc],28\n"

		: [cc] "=&d" (cc)

		CC_IPM(cc)

		: CC_OUT(cc, cc)

		: [fc] "d" (fc), [schid] "d" (schid), [mask] "d" (mask)

		: "cc", "0", "1", "2");

	return cc;

		: CC_CLOBBER_LIST("0", "1", "2"));

	return CC_TRANSFORM(cc);

}



/**
@@ -93,13 +92,12 @@ static inline int do_siga_output(unsigned long schid, unsigned long mask, 
		"	lgr	3,%[aob]\n"

		"	siga	0\n"

		"	lgr	%[fc],0\n"

		"	ipm	%[cc]\n"

		"	srl	%[cc],28\n"

		: [cc] "=&d" (cc), [fc] "+&d" (fc)

		CC_IPM(cc)

		: CC_OUT(cc, cc), [fc] "+&d" (fc)

		: [schid] "d" (schid), [mask] "d" (mask), [aob] "d" (aob)

		: "cc", "0", "1", "2", "3");

		: CC_CLOBBER_LIST("0", "1", "2", "3"));

	*bb = fc >> 31;

	return cc;

	return CC_TRANSFORM(cc);

}



/**