From: Keith Packard <keithp@keithp.com>
To: Matthew Garrett <mjg@redhat.com>, David Woodhouse <dwmw2@infradead.org>
Cc: intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org
Subject: Re: [PATCH] drm/i915: By default, enable RC6 on IVB and SNB when reasonable
Date: Tue, 22 Nov 2011 19:31:34 -0800 [thread overview]
Message-ID: <861uszfrah.fsf@sumi.keithp.com> (raw)
In-Reply-To: <20111122201531.GD5547@srcf.ucam.org>
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On Tue, 22 Nov 2011 20:15:31 +0000, Matthew Garrett <mjg@redhat.com> wrote:
> So the user has to choose between 5W of power saving or having dmar? And
> we default to giving them dmar? I think that's going to come as a
> surprise to people.
You'd have to go into the BIOS to turn this on for most machines at
least?
But, yeah, it seems like we should be turning DMAR off unless explicitly
requested; I can't understand how you'd ever need this running native on
the hardware. Not exactly an area I care about deeply; I've always
worked hard to make sure all virtualization garbage is disabled on every
machine I use.
--
keith.packard@intel.com
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next prev parent reply other threads:[~2011-11-23 3:32 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1322526298-2746-1-git-send-email-eugeni.dodonov@intel.com>
2011-11-19 6:41 ` [PATCH] drm/i915: By default, enable RC6 on IVB and SNB when reasonable Keith Packard
2011-11-19 7:37 ` [Intel-gfx] " Kenneth Graunke
2011-11-19 9:25 ` Eugeni Dodonov
2011-11-19 18:32 ` Keith Packard
2011-11-20 21:19 ` Eugeni Dodonov
2011-11-22 20:15 ` Matthew Garrett
[not found] ` <CAC7Lmnts+QwZ2XTvbTQa=aa3XO5_Sna0vk3KHWJJ6oi6+D5BXw@mail.gmail.com>
2011-11-22 20:51 ` Matthew Garrett
2011-11-23 3:31 ` Keith Packard [this message]
2011-11-23 10:26 ` Daniel Vetter
2011-11-23 14:01 ` David Woodhouse
2011-11-23 14:39 ` Daniel Vetter
2011-11-23 15:03 ` David Woodhouse
2011-11-23 15:31 ` Daniel Vetter
2011-11-23 15:36 ` David Woodhouse
2011-11-23 15:46 ` Daniel Vetter
2011-11-23 15:41 ` Daniel Vetter
2011-11-23 15:43 ` David Woodhouse
2011-11-23 20:35 ` Daniel Vetter
2011-11-23 18:42 ` [PATCH] iommu: export no_iommu and dmar_disabled symbols Eugeni Dodonov
2011-11-23 20:36 ` [Intel-gfx] " David Woodhouse
2011-11-23 20:48 ` Keith Packard
2011-12-09 23:53 ` drm/i915: Enabling RC6 where possible Keith Packard
2011-12-09 23:53 ` [PATCH 1/2] iommu: Export intel_iommu_enabled to signal when iommu is in use Keith Packard
2011-12-09 23:53 ` [PATCH 2/2] drm/i915: By default, enable RC6 on IVB and SNB when reasonable Keith Packard
2011-12-13 3:45 ` Matthew Garrett
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