Commit efef0db7 authored by Matthew Rosato's avatar Matthew Rosato Committed by Christian Borntraeger
Browse files

s390/sclp: detect the AENI facility 



Detect the Adapter Event Notification Interpretation facility.

Reviewed-by: default avatarEric Farman <farman@linux.ibm.com>
Reviewed-by: default avatarChristian Borntraeger <borntraeger@linux.ibm.com>
Reviewed-by: default avatarClaudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: default avatarMatthew Rosato <mjrosato@linux.ibm.com>
Link: https://lore.kernel.org/r/20220606203325.110625-4-mjrosato@linux.ibm.com


Signed-off-by: default avatarChristian Borntraeger <borntraeger@linux.ibm.com>
parent 9db153f4

arch/s390/include/asm/sclp.h

+1 −0
Original line number Diff line number Diff line
@@ -90,6 +90,7 @@ struct sclp_info { 
	unsigned char has_iplcc : 1;

	unsigned char has_zpci_lsi : 1;

	unsigned char has_aisii : 1;

	unsigned char has_aeni : 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
@@ -46,6 +46,7 @@ static void __init sclp_early_facilities_detect(void) 
	sclp.has_hvs = !!(sccb->fac119 & 0x80);

	sclp.has_kss = !!(sccb->fac98 & 0x01);

	sclp.has_aisii = !!(sccb->fac118 & 0x40);

	sclp.has_aeni = !!(sccb->fac118 & 0x20);

	sclp.has_zpci_lsi = !!(sccb->fac118 & 0x01);

	if (sccb->fac85 & 0x02)

		S390_lowcore.machine_flags |= MACHINE_FLAG_ESOP;