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authorDavid Hildenbrand <dahi@linux.vnet.ibm.com>2015-11-24 12:55:35 +0100
committerChristian Borntraeger <borntraeger@de.ibm.com>2016-06-10 12:07:19 +0200
commit09be9cb92bb9e799bdbfd3834595bd6b4703b40b (patch)
treeeea0216747a71f4e77b92bcdd85a4daabc88d54c /drivers/s390/char
parent89b5b4de33902a57cb9c8f2d06de4ffbc921de15 (diff)
downloadlinux-09be9cb92bb9e799bdbfd3834595bd6b4703b40b.tar.bz2
s390/sclp: detect cmma
Let's detect the Collaborative-memory-management-interpretation facility, aka CMM assist, so we can correctly enable cmma later. Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'drivers/s390/char')
-rw-r--r--drivers/s390/char/sclp_early.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c
index a05f2d07ea02..366e1a46e96d 100644
--- a/drivers/s390/char/sclp_early.c
+++ b/drivers/s390/char/sclp_early.c
@@ -115,6 +115,7 @@ static void __init sclp_facilities_detect(struct read_info_sccb *sccb)
sclp.has_sprp = !!(sccb->fac84 & 0x02);
sclp.has_core_type = !!(sccb->fac84 & 0x01);
sclp.has_64bscao = !!(sccb->fac116 & 0x80);
+ sclp.has_cmma = !!(sccb->fac116 & 0x40);
sclp.has_esca = !!(sccb->fac116 & 0x08);
sclp.has_hvs = !!(sccb->fac119 & 0x80);
if (sccb->fac85 & 0x02)