From: Jason Gunthorpe <jgg@mellanox.com>
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: Russell King - ARM Linux <linux@armlinux.org.uk>,
John Stultz <john.stultz@linaro.org>,
linux-arm-kernel@lists.infradead.org,
Thomas Gleixner <tglx@linutronix.de>,
Stephen Boyd <sboyd@codeaurora.org>,
Alessandro Zummo <a.zummo@towertech.it>,
linux-rtc@vger.kernel.org
Subject: Re: [PATCH] rtc: Allow rtc drivers to specify the tv_nsec value for ntp
Date: Mon, 27 Nov 2017 13:29:55 -0700 [thread overview]
Message-ID: <20171127202955.GF13962@mellanox.com> (raw)
In-Reply-To: <20171127201812.GB21126@piout.net>
On Mon, Nov 27, 2017 at 09:18:12PM +0100, Alexandre Belloni wrote:
> Also, fixing systohc will not fix the offset for people using hwclock or
> any other tools (e.g. systemd).
When I was talking this over with Russel originally I imagined the
systohc fix as a first step, and we could eventually add an rtc API to
let user space do a precise write to the RTC, with the kernel taking
care of the required sleep, etc.
Jason
WARNING: multiple messages have this Message-ID (diff)
From: jgg@mellanox.com (Jason Gunthorpe)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] rtc: Allow rtc drivers to specify the tv_nsec value for ntp
Date: Mon, 27 Nov 2017 13:29:55 -0700 [thread overview]
Message-ID: <20171127202955.GF13962@mellanox.com> (raw)
In-Reply-To: <20171127201812.GB21126@piout.net>
On Mon, Nov 27, 2017 at 09:18:12PM +0100, Alexandre Belloni wrote:
> Also, fixing systohc will not fix the offset for people using hwclock or
> any other tools (e.g. systemd).
When I was talking this over with Russel originally I imagined the
systohc fix as a first step, and we could eventually add an rtc API to
let user space do a precise write to the RTC, with the kernel taking
care of the required sleep, etc.
Jason
next prev parent reply other threads:[~2017-11-27 20:30 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-13 17:54 [PATCH] rtc: Allow rtc drivers to specify the tv_nsec value for ntp Jason Gunthorpe
2017-11-23 9:54 ` Alexandre Belloni
2017-11-23 11:23 ` Russell King - ARM Linux
2017-11-23 12:04 ` Alexandre Belloni
2017-11-23 12:04 ` Alexandre Belloni
2017-11-23 12:53 ` Russell King - ARM Linux
2017-11-23 12:53 ` Russell King - ARM Linux
2017-11-24 0:13 ` J William Piggott
2017-11-24 0:13 ` J William Piggott
2017-11-27 20:18 ` Alexandre Belloni
2017-11-27 20:18 ` Alexandre Belloni
2017-11-27 20:29 ` Jason Gunthorpe [this message]
2017-11-27 20:29 ` Jason Gunthorpe
2017-11-28 10:03 ` Russell King - ARM Linux
2017-11-28 10:03 ` Russell King - ARM Linux
2017-11-23 15:04 ` Jason Gunthorpe
2017-11-23 15:36 ` Alexandre Belloni
2017-11-23 16:10 ` Russell King - ARM Linux
2017-11-23 16:25 ` Russell King - ARM Linux
2017-11-27 18:48 ` Alexandre Belloni
2017-11-23 16:33 ` Jason Gunthorpe
2017-11-27 15:43 ` Russell King - ARM Linux
2017-11-27 17:43 ` Russell King - ARM Linux
2017-11-27 18:59 ` Jason Gunthorpe
2017-11-27 17:35 ` John Stultz
2017-11-27 17:52 ` Russell King - ARM Linux
2017-11-27 18:44 ` Alexandre Belloni
2017-11-27 18:53 ` Russell King - ARM Linux
2017-11-27 19:18 ` Russell King - ARM Linux
2017-11-27 19:31 ` Alexandre Belloni
2017-11-28 10:20 ` Russell King - ARM Linux
2017-11-30 19:39 ` Alexandre Belloni
2017-11-30 19:39 ` Alexandre Belloni
2017-11-30 19:43 ` Alexandre Belloni
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