diff options
| author | Thomas Gleixner <tglx@kernel.org> | 2026-05-29 23:00:32 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@kernel.org> | 2026-06-04 12:04:16 +0300 |
| commit | e3b8d03faa4d266d19ff7a7534e7bf810ff681cf (patch) | |
| tree | 32c9224528512c82a64d052149eda73902a2982e /include/linux | |
| parent | 6c14771816435a7ecf52d981a341e2de21463268 (diff) | |
| download | linux-e3b8d03faa4d266d19ff7a7534e7bf810ff681cf.tar.xz | |
timekeeping: Add CLOCK ID to system_device_crosststamp
The normal capture for system/device cross timestamps is CLOCK_REALTIME,
but that's meaningless for AUX clocks.
Add a clock_id field to struct system_device_crosststamp and initialize it
with CLOCK_REALTIME at the two places which prepare for cross
timestamps.
After the related code has been cleaned up, the core code will honor the
clock_id field when calculating the system time from the system counter
snapshot.
No functional change.
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Tested-by: David Woodhouse <dwmw@amazon.co.uk>
Tested-by: Arthur Kiyanovski <akiyano@amazon.com>
Reviewed-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20260529195557.482153523@kernel.org
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/timekeeping.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h index 3867db65f391..fff6d9e319c4 100644 --- a/include/linux/timekeeping.h +++ b/include/linux/timekeeping.h @@ -315,12 +315,14 @@ struct system_counterval_t { /** * struct system_device_crosststamp - system/device cross-timestamp * (synchronized capture) + * @clock_id: System time Clock ID to capture * @device: Device time * @sys_counter: Clocksource counter value simultaneous with device time * @sys_realtime: Realtime simultaneous with device time * @sys_monoraw: Monotonic raw simultaneous with device time */ struct system_device_crosststamp { + clockid_t clock_id; ktime_t device; struct system_counterval_t sys_counter; ktime_t sys_realtime; |