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s390/sclp: detect PFMF interpretation 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 13:02:25 +01:00 committed by Christian Borntraeger
parent 48ee7d3a7f
commit a0eb55e631
2 changed files with 4 additions and 1 deletions
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1
arch/s390/include/asm/sclp.h
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@ -71,6 +71,7 @@ struct sclp_info {
unsigned char has_gsls : 1;
unsigned char has_ib : 1;
unsigned char has_cei : 1;
unsigned char has_pfmfi : 1;
unsigned int ibc;
unsigned int mtid;
unsigned int mtid_cp;

4
drivers/s390/char/sclp_early.c
View File

@ -46,7 +46,8 @@ struct read_info_sccb {
u64 rnmax2; /* 104-111 */
u8 _pad_112[116 - 112]; /* 112-115 */
u8 fac116; /* 116 */
u8 _pad_117[119 - 117]; /* 117-118 */
u8 fac117; /* 117 */
u8 _pad_118; /* 118 */
u8 fac119; /* 119 */
u16 hcpua; /* 120-121 */
u8 _pad_122[124 - 122]; /* 122-123 */
@ -118,6 +119,7 @@ static void __init sclp_facilities_detect(struct read_info_sccb *sccb)
sclp.has_64bscao = !!(sccb->fac116 & 0x80);
sclp.has_cmma = !!(sccb->fac116 & 0x40);
sclp.has_esca = !!(sccb->fac116 & 0x08);
sclp.has_pfmfi = !!(sccb->fac117 & 0x40);
sclp.has_hvs = !!(sccb->fac119 & 0x80);
if (sccb->fac85 & 0x02)
S390_lowcore.machine_flags |= MACHINE_FLAG_ESOP;