From: Dietmar Eggemann <dietmar.eggemann@arm.com>
To: Juri Lelli <juri.lelli@arm.com>, linux-kernel@vger.kernel.org
Cc: linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
devicetree@vger.kernel.org, peterz@infradead.org,
vincent.guittot@linaro.org, robh+dt@kernel.org,
mark.rutland@arm.com, linux@arm.linux.org.uk,
sudeep.holla@arm.com, lorenzo.pieralisi@arm.com,
catalin.marinas@arm.com, will.deacon@arm.com,
morten.rasmussen@arm.com, Mark Brown <broonie@linaro.org>
Subject: Re: [RFC PATCH 8/8] arm64: add sysfs cpu_capacity attribute
Date: Thu, 10 Dec 2015 14:15:04 +0000 [thread overview]
Message-ID: <566988E8.3010308@arm.com> (raw)
In-Reply-To: <1448288921-30307-9-git-send-email-juri.lelli@arm.com>
On 23/11/15 14:28, Juri Lelli wrote:
> Add a sysfs cpu_capacity attribute with which it is possible to read and
> write (thus over-writing default values) CPUs capacity. This might be
> useful in situation where there is no way to get proper default values
> at boot time.
>
> The new attribute shows up as:
>
> /sys/devices/system/cpu/cpu*/cpu_capacity
>
This sysfs interface is not really needed for arm or arm64. People can
build the dt blob if they want to change the values. Less code to carry
... Let's focus on the core functionality, which is parsing cpu capacity
from dt file to task scheduler for heterogeneous systems.
[...]
next prev parent reply other threads:[~2015-12-10 14:15 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-23 14:28 [RFC PATCH 0/8] CPUs capacity information for heterogeneous systems Juri Lelli
2015-11-23 14:28 ` [RFC PATCH 1/8] ARM: initialize cpu_scale to its default Juri Lelli
2015-11-30 11:13 ` Vincent Guittot
2015-11-23 14:28 ` [RFC PATCH 2/8] Documentation: arm: define DT cpu capacity bindings Juri Lelli
2015-11-24 2:06 ` Rob Herring
2015-11-24 10:54 ` Juri Lelli
2015-11-30 9:59 ` Vincent Guittot
2015-12-01 11:20 ` Juri Lelli
2015-12-10 14:14 ` Dietmar Eggemann
2015-12-11 10:09 ` Juri Lelli
2015-12-10 15:30 ` Mark Brown
2015-12-10 17:58 ` Juri Lelli
2015-12-11 17:49 ` Mark Brown
[not found] ` <20151211174940.GQ5727-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-12-14 12:36 ` Juri Lelli
2015-12-14 16:59 ` Mark Brown
2015-12-15 12:22 ` Juri Lelli
2015-12-15 13:39 ` Mark Brown
2015-12-15 14:01 ` Mark Rutland
2015-12-15 14:24 ` Juri Lelli
2015-12-15 14:50 ` Mark Rutland
2015-12-15 15:36 ` Juri Lelli
2015-12-15 15:08 ` Mark Brown
[not found] ` <20151215150813.GZ5727-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-12-15 15:32 ` Mark Rutland
2015-12-15 15:46 ` Juri Lelli
2015-12-15 15:57 ` Mark Rutland
2015-12-15 16:23 ` Catalin Marinas
2015-12-15 16:41 ` Mark Rutland
2015-12-15 16:59 ` Vincent Guittot
[not found] ` <CAKfTPtAuosPcL8bbQ27Y-vUE1h4QRY8hGESnm4YrxqRAQ3K=5g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-12-15 17:15 ` Mark Rutland
2015-12-15 17:47 ` Vincent Guittot
[not found] ` <CAKfTPtBzWcNHx+Fi7hUabNpPsd1thFAkPnLcpsnqbQp6Qq24cQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-12-15 18:39 ` Mark Rutland
2015-12-15 17:17 ` Mark Brown
[not found] ` <20151215171713.GA5727-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-12-15 17:28 ` Mark Rutland
2015-12-15 17:45 ` Mark Brown
2015-12-15 18:10 ` Mark Rutland
2015-12-15 18:45 ` Mark Brown
2015-12-17 9:07 ` Juri Lelli
2015-12-15 13:55 ` Vincent Guittot
2015-11-23 14:28 ` [RFC PATCH 3/8] arm: parse cpu capacity from DT Juri Lelli
2015-12-10 14:14 ` Dietmar Eggemann
[not found] ` <566988DD.9080005-5wv7dgnIgG8@public.gmane.org>
2015-12-11 10:12 ` Juri Lelli
2015-11-23 14:28 ` [RFC PATCH 4/8] arm, dts: add TC2 cpu capacity information Juri Lelli
2015-11-23 14:28 ` [RFC PATCH 5/8] arm64: parse cpu capacity from DT Juri Lelli
2015-12-10 14:15 ` Dietmar Eggemann
2015-12-11 10:07 ` Juri Lelli
2015-11-23 14:28 ` [RFC PATCH 6/8] arm64, dts: add Juno cpu capacity information Juri Lelli
2015-11-23 14:28 ` [RFC PATCH 7/8] arm: add sysfs cpu_capacity attribute Juri Lelli
2015-11-23 14:28 ` [RFC PATCH 8/8] arm64: " Juri Lelli
2015-12-10 14:15 ` Dietmar Eggemann [this message]
2015-12-10 15:59 ` Mark Brown
2015-12-10 18:01 ` Juri Lelli
2015-12-11 17:54 ` Mark Brown
2015-12-07 12:02 ` [RFC PATCH 0/8] CPUs capacity information for heterogeneous systems Juri Lelli
2015-12-07 12:11 ` Russell King - ARM Linux
2015-12-07 12:36 ` Juri Lelli
2015-12-07 13:18 ` Russell King - ARM Linux
[not found] ` <20151207131843.GP8644-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2015-12-07 15:41 ` Juri Lelli
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=566988E8.3010308@arm.com \
--to=dietmar.eggemann@arm.com \
--cc=broonie@linaro.org \
--cc=catalin.marinas@arm.com \
--cc=devicetree@vger.kernel.org \
--cc=juri.lelli@arm.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=linux@arm.linux.org.uk \
--cc=lorenzo.pieralisi@arm.com \
--cc=mark.rutland@arm.com \
--cc=morten.rasmussen@arm.com \
--cc=peterz@infradead.org \
--cc=robh+dt@kernel.org \
--cc=sudeep.holla@arm.com \
--cc=vincent.guittot@linaro.org \
--cc=will.deacon@arm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).