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authorSebastian Ott <sebott@linux.ibm.com>2019-02-12 12:37:50 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2019-04-29 10:47:01 +0200
commit0a9fddfaa8ea0f66564329ce89390c8dd38b2df0 (patch)
tree736ac8c669d5c5163b9001df3eacdc180a15addb /drivers/s390/char/sclp_early.c
parents390/pci: move everything irq related to pci_irq.c (diff)
downloadlinux-dev-0a9fddfaa8ea0f66564329ce89390c8dd38b2df0.tar.xz
linux-dev-0a9fddfaa8ea0f66564329ce89390c8dd38b2df0.zip
s390/sclp: detect DIRQ facility
Detect the adapter CPU directed interruption facility. Signed-off-by: Sebastian Ott <sebott@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to '')
-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 dae9de3d7c96..fdad2a980129 100644
--- a/drivers/s390/char/sclp_early.c
+++ b/drivers/s390/char/sclp_early.c
@@ -95,6 +95,7 @@ static void __init sclp_early_facilities_detect(struct read_info_sccb *sccb)
sclp.mtid_prev = (sccb->fac42 & 0x80) ? (sccb->fac66 & 31) : 0;
sclp.hmfai = sccb->hmfai;
+ sclp.has_dirq = !!(sccb->cpudirq & 0x80);
}
/*