diff options
| author | Thomas Gleixner <[email protected]> | 2018-09-17 14:45:44 +0200 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2018-10-04 23:00:27 +0200 |
| commit | 315f28fa3a7bfbbb6233d800dffa327e87f96129 (patch) | |
| tree | 6e93f0d9fb28a08d45ef4fe91d2940248f084078 | |
| parent | 3e89bf35ebf59c12e8c1476f6681fae0ebdcb2a7 (diff) | |
x66/vdso: Add CLOCK_TAI support
With the storage array in place it's now trivial to support CLOCK_TAI in
the vdso. Extend the base time storage array and add the update code.
Signed-off-by: Thomas Gleixner <[email protected]>
Tested-by: Matt Rickard <[email protected]>
Acked-by: Andy Lutomirski <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephen Boyd <[email protected]>
Cc: John Stultz <[email protected]>
Cc: Florian Weimer <[email protected]>
Cc: "K. Y. Srinivasan" <[email protected]>
Cc: Vitaly Kuznetsov <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: Paolo Bonzini <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Juergen Gross <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
| -rw-r--r-- | arch/x86/entry/vsyscall/vsyscall_gtod.c | 4 | ||||
| -rw-r--r-- | arch/x86/include/asm/vgtod.h | 4 |
2 files changed, 6 insertions, 2 deletions
diff --git a/arch/x86/entry/vsyscall/vsyscall_gtod.c b/arch/x86/entry/vsyscall/vsyscall_gtod.c index 31b9e5e0cfdf..cfcdba082feb 100644 --- a/arch/x86/entry/vsyscall/vsyscall_gtod.c +++ b/arch/x86/entry/vsyscall/vsyscall_gtod.c @@ -51,6 +51,10 @@ void update_vsyscall(struct timekeeper *tk) base->sec = tk->xtime_sec; base->nsec = tk->tkr_mono.xtime_nsec; + base = &vdata->basetime[CLOCK_TAI]; + base->sec = tk->xtime_sec + (s64)tk->tai_offset; + base->nsec = tk->tkr_mono.xtime_nsec; + base = &vdata->basetime[CLOCK_MONOTONIC]; base->sec = tk->xtime_sec + tk->wall_to_monotonic.tv_sec; nsec = tk->tkr_mono.xtime_nsec; diff --git a/arch/x86/include/asm/vgtod.h b/arch/x86/include/asm/vgtod.h index 10e534a1a51a..d17b092b9f1b 100644 --- a/arch/x86/include/asm/vgtod.h +++ b/arch/x86/include/asm/vgtod.h @@ -18,8 +18,8 @@ struct vgtod_ts { u64 nsec; }; -#define VGTOD_BASES (CLOCK_MONOTONIC_COARSE + 1) -#define VGTOD_HRES (BIT(CLOCK_REALTIME) | BIT(CLOCK_MONOTONIC)) +#define VGTOD_BASES (CLOCK_TAI + 1) +#define VGTOD_HRES (BIT(CLOCK_REALTIME) | BIT(CLOCK_MONOTONIC) | BIT(CLOCK_TAI)) #define VGTOD_COARSE (BIT(CLOCK_REALTIME_COARSE) | BIT(CLOCK_MONOTONIC_COARSE)) /* |