Commit 97999f8c authored by Mete Durlu's avatar Mete Durlu Committed by Vasily Gorbik
Browse files

s390/diag: Add busy-indication-facility requirements 



To verify if busy indication facility is installed or not sclp bits has
to be checked. Add a function that checks sclp to improve readability.
Add busy-indication-request bit mask for diag204 subcodes.

Acked-by: default avatarHeiko Carstens <hca@linux.ibm.com>
Reviewed-by: default avatarTobias Huschle <huschle@linux.ibm.com>
Signed-off-by: default avatarMete Durlu <meted@linux.ibm.com>
Signed-off-by: default avatarVasily Gorbik <gor@linux.ibm.com>
parent df7e714d

arch/s390/include/asm/diag.h

+7 −0
Original line number Diff line number Diff line
@@ -12,6 +12,7 @@ 
#include <linux/if_ether.h>

#include <linux/percpu.h>

#include <asm/asm-extable.h>

#include <asm/sclp.h>

#include <asm/cio.h>



enum diag_stat_enum {
@@ -117,6 +118,7 @@ enum diag204_sc { 
};



#define DIAG204_SUBCODE_MASK 0xffff

#define DIAG204_BIF_BIT 0x80000000



/* The two available diag 204 data formats */

enum diag204_format {
@@ -326,6 +328,11 @@ union diag318_info { 
	};

};



static inline bool diag204_has_bif(void)

{

	return sclp.has_diag204_bif;

}



int diag204(unsigned long subcode, unsigned long size, void *addr);

int diag224(void *ptr);

int diag26c(void *req, void *resp, enum diag26c_sc subcode);