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s390/sclp: introduce check for SIE 

This patch adds a way to check if the SIE with zArchitecture support is
available.

Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
hifive-unleashed-5.1
David Hildenbrand 2015-02-24 15:51:55 +01:00 committed by Christian Borntraeger
parent 4215825eeb
commit 8dfd523f85
2 changed files with 6 additions and 1 deletions
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6
arch/s390/include/asm/sclp.h
View File

@ -29,7 +29,10 @@ struct sclp_ipl_info {
struct sclp_core_entry {
u8 core_id;
u8 reserved0[2];
u8 reserved0;
u8 : 4;
u8 sief2 : 1;
u8 : 3;
u8 : 3;
u8 siif : 1;
u8 sigpif : 1;
@ -55,6 +58,7 @@ struct sclp_info {
unsigned char has_sprp : 1;
unsigned char has_hvs : 1;
unsigned char has_esca : 1;
unsigned char has_sief2 : 1;
unsigned int ibc;
unsigned int mtid;
unsigned int mtid_cp;

1
drivers/s390/char/sclp_early.c
View File

@ -136,6 +136,7 @@ static void __init sclp_facilities_detect(struct read_info_sccb *sccb)
continue;
sclp.has_siif = cpue->siif;
sclp.has_sigpif = cpue->sigpif;
sclp.has_sief2 = cpue->sief2;
break;
}