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| author | Heiko Carstens <hca@linux.ibm.com> | 2021-06-09 22:59:13 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2021-06-18 16:41:21 +0200 |
| commit | c4655a2098236d36c5b0678e56c9ea04308b45ed (patch) | |
| tree | 7063f8e578b87fb69fe76651c9a0a26922008d11 | |
| parent | 6b8ed170956388725ac1ef0ea3eff34df323ee03 (diff) | |
| download | linux-stable-c4655a2098236d36c5b0678e56c9ea04308b45ed.tar.gz linux-stable-c4655a2098236d36c5b0678e56c9ea04308b45ed.tar.bz2 linux-stable-c4655a2098236d36c5b0678e56c9ea04308b45ed.zip | |
s390: introduce register pair union
Introduce a register pair union, which is supposed to be used for
inline assemblies where instructions require parameters in even/odd
numbered register pairs.
This is more or less the same register pair construct which was
available for 31 bit builds which was removed with commit 5a79859ae0f3
("s390: remove 31 bit support").
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
| -rw-r--r-- | arch/s390/include/asm/types.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/s390/include/asm/types.h b/arch/s390/include/asm/types.h new file mode 100644 index 000000000000..0b5d550a0478 --- /dev/null +++ b/arch/s390/include/asm/types.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#ifndef _ASM_S390_TYPES_H +#define _ASM_S390_TYPES_H + +#include <uapi/asm/types.h> + +#ifndef __ASSEMBLY__ + +union register_pair { + unsigned __int128 pair; + struct { + unsigned long even; + unsigned long odd; + }; +}; + +#endif /* __ASSEMBLY__ */ +#endif /* _ASM_S390_TYPES_H */ |