Date: Fri, 26 Apr 2013 12:54:31 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: Arjan van de Ven <arjan@linux.intel.com>
Cc: Alex Shi <alex.shi@intel.com>,
        Vincent Guittot <vincent.guittot@linaro.org>,
        Preeti U Murthy <preeti@linux.vnet.ibm.com>,
        linux-kernel <linux-kernel@vger.kernel.org>,
        LAK <linux-arm-kernel@lists.infradead.org>,
        "linaro-kernel@lists.linaro.org" <linaro-kernel@lists.linaro.org>,
        Ingo Molnar <mingo@kernel.org>,
        Russell King - ARM Linux <linux@arm.linux.org.uk>,
        Paul Turner <pjt@google.com>, Santosh <santosh.shilimkar@ti.com>,
        Morten Rasmussen <morten.rasmussen@arm.com>,
        Chander Kashyap <chander.kashyap@linaro.org>,
        "cmetcalf@tilera.com" <cmetcalf@tilera.com>,
        "tony.luck@intel.com" <tony.luck@intel.com>,
        Paul McKenney <paulmck@linux.vnet.ibm.com>,
        Thomas Gleixner <tglx@linutronix.de>, Len Brown <len.brown@intel.com>,
        Amit Kucheria <amit.kucheria@linaro.org>,
        Jonathan Corbet <corbet@lwn.net>
Subject: Re: [RFC PATCH v3 5/6] sched: pack the idle load balance
Message-ID: <20130426105431.GF8669@dyad.programming.kicks-ass.net>
References: <1363955155-18382-1-git-send-email-vincent.guittot@linaro.org>
 <1363955155-18382-6-git-send-email-vincent.guittot@linaro.org>
 <1364302359.5053.21.camel@laptop>
 <CAKfTPtD=_oS5gJeynUG=ft-Y1zEdxZEMhUPH9hSXx+H2pi4xgA@mail.gmail.com>
 <1364308932.5053.46.camel@laptop>
 <CAKfTPtArtgkH5MU_xFAKjLDS-i32g2qQMdvyW=LLkG84tH8Hhg@mail.gmail.com>
 <5174CE96.3060805@linux.vnet.ibm.com>
 <CAKfTPtCCCifC=c+xjjnAH_HSqkR80PiQoddQKXPHuZwZawbvcA@mail.gmail.com>
 <5175F09E.1000304@intel.com>
 <5176A932.5050506@linux.intel.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <5176A932.5050506@linux.intel.com>
User-Agent: Mutt/1.5.20 (2009-06-14)
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 652
Lines: 13

On Tue, Apr 23, 2013 at 08:30:58AM -0700, Arjan van de Ven wrote:
> For x86 we should not be setting such flag then; we don't have a way for some cpu packages to
> go to an extra deep power state if they're completely idle.
> (this afaik is true for both Intel and AMD)

You say 'some'; this implies we do for others, right?

We can dynamically set the required flags in the arch setup when it makes sense.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/