diff options
| author |   Heiko Carstens <hca@linux.ibm.com> | 2021-02-07 22:00:22 +0100 |
|---|---|---|
| committer |   Vasily Gorbik <gor@linux.ibm.com> | 2021-02-13 17:17:54 +0100 |
| commit | e4101be56c85effa4509b35a208482f888e79cfc (patch) | |
| tree | d599ea3db0647ffa92468dcffc19e6fc735d529e | |
| parent | s390,alpha: switch to 64-bit ino_t (diff) | |
| download | linux-dev-e4101be56c85effa4509b35a208482f888e79cfc.tar.xz linux-dev-e4101be56c85effa4509b35a208482f888e79cfc.zip | |
s390/time: introduce union tod_clock
Introduce union tod_clock which is supposed to be used to decode and
access various fields of the result of STORE CLOCK EXTENDED.
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/timex.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h index 63bf3bd6e83f..271a1e12cc73 100644 --- a/arch/s390/include/asm/timex.h +++ b/arch/s390/include/asm/timex.h @@ -21,6 +21,25 @@ extern u64 clock_comparator_max; +union tod_clock { + __uint128_t val; + struct { + __uint128_t ei : 8; /* epoch index */ + __uint128_t tod : 64; /* bits 0-63 of tod clock */ + __uint128_t : 40; + __uint128_t pf : 16; /* programmable field */ + }; + struct { + __uint128_t eitod : 72; /* epoch index + bits 0-63 tod clock */ + __uint128_t : 56; + }; + struct { + __uint128_t us : 60; /* micro-seconds */ + __uint128_t sus : 12; /* sub-microseconds */ + __uint128_t : 56; + }; +} __packed; + /* Inline functions for clock register access. */ static inline int set_tod_clock(__u64 time) { |