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| author | Mete Durlu <meted@linux.ibm.com> | 2024-07-04 14:10:04 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2024-07-10 19:50:44 +0200 |
| commit | 7455a33179e65267cd7c8910050b6f0be3ff6b83 (patch) | |
| tree | f502b399fcc434728f5df2029a059ae39f193d8a | |
| parent | 279a0164e001a87aa7b9852969ed333c3c69b3aa (diff) | |
| download | lwn-7455a33179e65267cd7c8910050b6f0be3ff6b83.tar.gz lwn-7455a33179e65267cd7c8910050b6f0be3ff6b83.zip | |
s390/sclp: Diag204 busy indication facility detection
Detect diag204 busy indication facility.
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Tobias Huschle <huschle@linux.ibm.com>
Signed-off-by: Mete Durlu <meted@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
| -rw-r--r-- | arch/s390/include/asm/sclp.h | 1 | ||||
| -rw-r--r-- | drivers/s390/char/sclp_early.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h index 5742d23bba13..da3dad18fe50 100644 --- a/arch/s390/include/asm/sclp.h +++ b/arch/s390/include/asm/sclp.h @@ -84,6 +84,7 @@ struct sclp_info { unsigned char has_ibs : 1; unsigned char has_skey : 1; unsigned char has_kss : 1; + unsigned char has_diag204_bif : 1; unsigned char has_gisaf : 1; unsigned char has_diag318 : 1; unsigned char has_diag320 : 1; diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c index 42986284cc78..07df04af82f2 100644 --- a/drivers/s390/char/sclp_early.c +++ b/drivers/s390/char/sclp_early.c @@ -53,6 +53,7 @@ static void __init sclp_early_facilities_detect(void) get_lowcore()->machine_flags |= MACHINE_FLAG_ESOP; if (sccb->fac91 & 0x40) get_lowcore()->machine_flags |= MACHINE_FLAG_TLB_GUEST; + sclp.has_diag204_bif = !!(sccb->fac98 & 0x80); if (sccb->cpuoff > 134) { sclp.has_diag318 = !!(sccb->byte_134 & 0x80); sclp.has_diag320 = !!(sccb->byte_134 & 0x04); |