Messages in this thread | | | From | "Jianyong Wu (Arm Technology China)" <> | Subject | RE: [PATCH 3/6] Timer: expose monotonic clock and counter value | Date | Wed, 18 Sep 2019 06:01:34 +0000 |
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Hi Richard,
> -----Original Message----- > From: Richard Cochran <richardcochran@gmail.com> > Sent: Wednesday, September 18, 2019 11:43 AM > To: Jianyong Wu (Arm Technology China) <Jianyong.Wu@arm.com> > Cc: netdev@vger.kernel.org; pbonzini@redhat.com; > sean.j.christopherson@intel.com; maz@kernel.org; Mark Rutland > <Mark.Rutland@arm.com>; Will Deacon <Will.Deacon@arm.com>; Suzuki > Poulose <Suzuki.Poulose@arm.com>; linux-kernel@vger.kernel.org; Steve > Capper <Steve.Capper@arm.com>; Kaly Xin (Arm Technology China) > <Kaly.Xin@arm.com>; Justin He (Arm Technology China) > <Justin.He@arm.com>; nd <nd@arm.com>; linux-arm- > kernel@lists.infradead.org > Subject: Re: [PATCH 3/6] Timer: expose monotonic clock and counter value > > On Tue, Sep 17, 2019 at 07:24:27AM -0400, Jianyong Wu wrote: > > A number of PTP drivers (such as ptp-kvm) are assuming what the > > current clock source is, which could lead to interesting effects on > > systems where the clocksource can change depending on external events. > > > > For this purpose, add a new API that retrives both the current > > monotonic clock as well as its counter value. > > > > Signed-off-by: Marc Zyngier <maz@kernel.org> > > Signed-off-by: Jianyong Wu <jianyong.wu@arm.com> > > --- > > include/linux/timekeeping.h | 3 +++ > > kernel/time/timekeeping.c | 13 +++++++++++++ > > 2 files changed, 16 insertions(+) > > For core time keeping changes, you must CC lkml, tglx, and John Stultz. >
Thanks, I will.
Thanks Jianyong Wu
> Thanks, > Richard
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