diff options
| author | David Hildenbrand <david@redhat.com> | 2021-05-03 14:12:44 +0200 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2021-05-04 19:10:56 +0200 |
| commit | b208108638c4bd3215792415944467c36f5dfd97 (patch) | |
| tree | b18fb71bab9c3e8db7ac871f9300c610565f453d /drivers/input/touchscreen/wacom_i2c.c | |
| parent | bae1cd368c45d1127e054e90305d585dbc8b3b46 (diff) | |
| download | lwn-b208108638c4bd3215792415944467c36f5dfd97.tar.gz lwn-b208108638c4bd3215792415944467c36f5dfd97.zip | |
s390: fix detection of vector enhancements facility 1 vs. vector packed decimal facility
The PoP documents:
134: The vector packed decimal facility is installed in the
z/Architecture architectural mode. When bit 134 is
one, bit 129 is also one.
135: The vector enhancements facility 1 is installed in
the z/Architecture architectural mode. When bit 135
is one, bit 129 is also one.
Looks like we confuse the vector enhancements facility 1 ("EXT") with the
Vector packed decimal facility ("BCD"). Let's fix the facility checks.
Detected while working on QEMU/tcg z14 support and only unlocking
the vector enhancements facility 1, but not the vector packed decimal
facility.
Fixes: 2583b848cad0 ("s390: report new vector facilities")
Cc: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Link: https://lore.kernel.org/r/20210503121244.25232-1-david@redhat.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'drivers/input/touchscreen/wacom_i2c.c')
0 files changed, 0 insertions, 0 deletions