linux-kernel - Re: [PATCH] drivers/misc: Add Intel interrupt latency counter driver

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Date:   Thu, 22 Mar 2018 00:08:04 +0100
From:   Pavel Machek <pavel@....cz>
To:     "Ooi, Joyce" <joyce.ooi@...el.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org,
        Ong Hean Loong <hean.loong.ong@...el.com>,
        Yves Vandervennet <yves.vandervennet@...el.com>
Subject: Re: [PATCH] drivers/misc: Add Intel interrupt latency counter driver

On Wed 2018-03-14 19:25:10, Ooi, Joyce wrote:
> Adding Intel interrupt latency counter driver support. This driver works
> together with the Intel interrupt latency driver soft IP to measure the
> time from the interrupt being asserted to the execution of the interrupt
> service routine. This driver and soft ip supports for both edge and level
> interrupt.


> Signed-off-by: Ooi, Joyce <joyce.ooi@...el.com>
> ---
>  .../misc/intel-interrupt-latency-counter.txt       |   49 ++++
>  drivers/misc/intel_ilc.c                           |  299 ++++++++++++++++++++

Should this go near "perf" somewhere?

> +++ b/Documentation/devicetree/bindings/misc/intel-interrupt-latency-counter.txt
> @@ -0,0 +1,49 @@
> +Intel Interrupt Latency Counter soft IP
> +Intel Interrupt Latency Counter IP core driver provides a sysfs interface
> +for user to obtain interrupt latency values from Intel Interrupt Latency
> +Counter soft IP.

Needs to be sent to devicetree people.

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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