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Commit 9e73ea70 authored by Michael Mueller's avatar Michael Mueller Committed by Christian Borntraeger
Browse files

s390/sclp: expose the GISA format facility 



The GISA format facility is required by the host to be able to process
a format-1 GISA. If not available, the used GISA format will be format-0.
All format-1 related extension will not be available in this case.

Signed-off-by: default avatarMichael Mueller <mimu@linux.vnet.ibm.com>
Reviewed-by: default avatarPierre Morel <pmorel@linux.vnet.ibm.com>
Reviewed-by: default avatarHalil Pasic <pasic@linux.vnet.ibm.com>
Reviewed-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
Acked-by: default avatarDavid Hildenbrand <david@redhat.com>
Acked-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
parent f180bfda

arch/s390/include/asm/sclp.h

+1 −0
Original line number Diff line number Diff line
@@ -77,6 +77,7 @@ struct sclp_info { 
	unsigned char has_ibs : 1;

	unsigned char has_skey : 1;

	unsigned char has_kss : 1;

	unsigned char has_gisaf : 1;

	unsigned int ibc;

	unsigned int mtid;

	unsigned int mtid_cp;

drivers/s390/char/sclp_early.c

+2 −1
Original line number Diff line number Diff line
@@ -49,7 +49,7 @@ struct read_info_sccb { 
	u8	_pad_112[116 - 112];	/* 112-115 */

	u8	fac116;			/* 116 */

	u8	fac117;			/* 117 */

	u8	_pad_118;		/* 118 */

	u8	fac118;			/* 118 */

	u8	fac119;			/* 119 */

	u16	hcpua;			/* 120-121 */

	u8	_pad_122[124 - 122];	/* 122-123 */
@@ -100,6 +100,7 @@ static void __init sclp_early_facilities_detect(struct read_info_sccb *sccb) 
	sclp.has_esca = !!(sccb->fac116 & 0x08);

	sclp.has_pfmfi = !!(sccb->fac117 & 0x40);

	sclp.has_ibs = !!(sccb->fac117 & 0x20);

	sclp.has_gisaf = !!(sccb->fac118 & 0x08);

	sclp.has_hvs = !!(sccb->fac119 & 0x80);

	sclp.has_kss = !!(sccb->fac98 & 0x01);

	if (sccb->fac85 & 0x02)