Commit b05a870c authored Jun 06, 2022 by Matthew Rosato Committed by Christian Borntraeger Jul 11, 2022

s390/sclp: detect the AISI facility

Detect the Adapter Interruption Suppression Interpretation facility.

Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Link: https://lore.kernel.org/r/20220606203325.110625-5-mjrosato@linux.ibm.com

Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>

parent efef0db7

arch/s390/include/asm/sclp.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -91,6 +91,7 @@ struct sclp_info {
		unsigned char has_zpci_lsi : 1;
		unsigned char has_aisii : 1;
		unsigned char has_aeni : 1;
		unsigned char has_aisi : 1;
		unsigned int ibc;
		unsigned int mtid;
		unsigned int mtid_cp;

drivers/s390/char/sclp_early.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -47,6 +47,7 @@ static void __init sclp_early_facilities_detect(void)
		sclp.has_kss = !!(sccb->fac98 & 0x01);
		sclp.has_aisii = !!(sccb->fac118 & 0x40);
		sclp.has_aeni = !!(sccb->fac118 & 0x20);
		sclp.has_aisi = !!(sccb->fac118 & 0x10);
		sclp.has_zpci_lsi = !!(sccb->fac118 & 0x01);
		if (sccb->fac85 & 0x02)
		S390_lowcore.machine_flags \|= MACHINE_FLAG_ESOP;