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s390/sclp: detect interlock-and-broadcast-suppression facility 

Let's detect that facility.

Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
This commit is contained in:
David Hildenbrand 2015-11-24 13:02:52 +01:00 committed by Christian Borntraeger
parent 873b425e4c
commit 9c375490fc
2 changed files with 2 additions and 0 deletions
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1
arch/s390/include/asm/sclp.h
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@ -72,6 +72,7 @@ struct sclp_info {
unsigned char has_ib : 1; unsigned char has_ib : 1;
unsigned char has_cei : 1; unsigned char has_cei : 1;
unsigned char has_pfmfi : 1; unsigned char has_pfmfi : 1;
unsigned char has_ibs : 1;
unsigned int ibc; unsigned int ibc;
unsigned int mtid; unsigned int mtid;
unsigned int mtid_cp; unsigned int mtid_cp;

1
drivers/s390/char/sclp_early.c
View File

@ -120,6 +120,7 @@ static void __init sclp_facilities_detect(struct read_info_sccb *sccb)
sclp.has_cmma = !!(sccb->fac116 & 0x40); sclp.has_cmma = !!(sccb->fac116 & 0x40);
sclp.has_esca = !!(sccb->fac116 & 0x08); sclp.has_esca = !!(sccb->fac116 & 0x08);
sclp.has_pfmfi = !!(sccb->fac117 & 0x40); sclp.has_pfmfi = !!(sccb->fac117 & 0x40);
sclp.has_ibs = !!(sccb->fac117 & 0x20);
sclp.has_hvs = !!(sccb->fac119 & 0x80); sclp.has_hvs = !!(sccb->fac119 & 0x80);
if (sccb->fac85 & 0x02) if (sccb->fac85 & 0x02)
S390_lowcore.machine_flags |= MACHINE_FLAG_ESOP; S390_lowcore.machine_flags |= MACHINE_FLAG_ESOP;