From: Viresh Kumar <viresh.kumar@linaro.org>
To: Pavel Machek <pavel@ucw.cz>
Cc: Rafael Wysocki <rjw@rjwysocki.net>,
linaro-kernel@lists.linaro.org, linux-pm@vger.kernel.org,
b.zolnierkie@samsung.com, nm@ti.com, sboyd@codeaurora.org,
Tomasz Figa <tomasz.figa@gmail.com>,
Michael Turquette <mturquette@baylibre.com>,
Javier Martinez Canillas <javier@dowhile0.org>,
Thomas Abraham <thomas.ab@samsung.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Len Brown <len.brown@intel.com>,
open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/4] opp: add dev_pm_opp_is_turbo() helper
Date: Wed, 29 Jul 2015 16:26:22 +0530 [thread overview]
Message-ID: <20150729105622.GA5100@linux> (raw)
In-Reply-To: <20150729105347.GA23865@amd>
On 29-07-15, 12:53, Pavel Machek wrote:
> So any combination of normal OPPs can be sustained for arbitrary time
> within the temperature range?
Maybe not. That's why we user thermal framework to sense such
situations and react accordingly.
> And as soon as any turbo OPP is enabled, we produce more heat than
> TDP?
But yeah, this will cross all limits. Shall generate more heat or may
consume lots of power for very small benefit in performance. And so
very short duration bursts of this are used by very few platforms.
--
viresh
next prev parent reply other threads:[~2015-07-29 10:56 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-28 11:19 [PATCH 0/4] cpufreq/opp: Turbo/boost mode support Viresh Kumar
2015-07-28 11:20 ` [PATCH 1/4] opp: add dev_pm_opp_is_turbo() helper Viresh Kumar
2015-07-28 14:27 ` Pavel Machek
2015-07-29 10:24 ` Viresh Kumar
2015-07-29 10:53 ` Pavel Machek
2015-07-29 10:56 ` Viresh Kumar [this message]
2015-07-28 11:20 ` [PATCH 2/4] cpufreq: Update boost flag while initializing freq table from OPPs Viresh Kumar
2015-07-28 11:20 ` [PATCH 3/4] cpufreq: Allow drivers to enable boost support after registering driver Viresh Kumar
2015-07-28 13:48 ` Viresh Kumar
2015-07-28 11:20 ` [PATCH 4/4] cpufreq: dt: Add support for turbo/boost mode Viresh Kumar
2015-07-28 11:22 ` [PATCH 0/4] cpufreq/opp: Turbo/boost mode support Viresh Kumar
2015-07-28 11:55 ` Bartlomiej Zolnierkiewicz
2015-07-28 12:18 ` Viresh Kumar
2015-07-28 13:38 ` Bartlomiej Zolnierkiewicz
2015-07-28 13:47 ` Viresh Kumar
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=20150729105622.GA5100@linux \
--to=viresh.kumar@linaro.org \
--cc=b.zolnierkie@samsung.com \
--cc=gregkh@linuxfoundation.org \
--cc=javier@dowhile0.org \
--cc=len.brown@intel.com \
--cc=linaro-kernel@lists.linaro.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=mturquette@baylibre.com \
--cc=nm@ti.com \
--cc=pavel@ucw.cz \
--cc=rjw@rjwysocki.net \
--cc=sboyd@codeaurora.org \
--cc=thomas.ab@samsung.com \
--cc=tomasz.figa@gmail.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).