diff options
| author | Heiko Carstens <hca@linux.ibm.com> | 2023-02-02 15:47:38 +0100 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2023-02-09 20:11:23 +0100 |
| commit | b0b7b43fcc4666232b4ed65d2c8fa08aff1b6042 (patch) | |
| tree | 039c69d837fd3b34e5a8556fe4a6bcd581f80156 | |
| parent | 1306711ad3bf412852cd357f47a752c761f0095c (diff) | |
s390/vx: add 64 and 128 bit members to __vector128 struct
Add 64 and 128 bit members to __vector128 struct in order to allow reading
of the complete value, or the higher or lower part of vector register
contents instead of having to use casts.
Add an explicit __aligned(4) statement to avoid that the alignment of the
structure changes from 4 to 8. This should make sure that no breakage
happens because of this change.
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
| -rw-r--r-- | arch/s390/include/uapi/asm/types.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/s390/include/uapi/asm/types.h b/arch/s390/include/uapi/asm/types.h index da034c606314..57139590eb6b 100644 --- a/arch/s390/include/uapi/asm/types.h +++ b/arch/s390/include/uapi/asm/types.h @@ -19,8 +19,15 @@ typedef unsigned long addr_t; typedef __signed__ long saddr_t; typedef struct { - __u32 u[4]; -} __vector128; + union { + struct { + __u64 high; + __u64 low; + }; + __uint128_t v; + __u32 u[4]; + }; +} __attribute__((packed, aligned(4))) __vector128; #endif /* __ASSEMBLY__ */ |