From: Chris Wilson <chris@chris-wilson.co.uk>
To: intel-gfx@lists.freedesktop.org
Cc: Eugeni Dodonov <eugeni.dodonov@intel.com>
Subject: Re: [PATCH 2/2] drm/i915: enable plain RC6 on Sandy Bridge by default
Date: Sat, 11 Feb 2012 12:59:25 +0000 [thread overview]
Message-ID: <c55c5d$1ui7a7@AZSMGA002.ch.intel.com> (raw)
In-Reply-To: <1328963655-12128-3-git-send-email-eugeni.dodonov@intel.com>
On Sat, 11 Feb 2012 10:34:15 -0200, Eugeni Dodonov <eugeni.dodonov@intel.com> wrote:
> This is yet another chapter in the ongoing saga of bringing RC6 to Sandy
> Bridge machines by default.
>
> Now that we have discovered that RC6 issues are triggered by RC6+ state,
> let's try to disable it by default. Plain RC6 is the one responsible for
> most energy savings, and so far it haven't given any problems - at least,
> none we are aware of.
>
> So with this, when i915_enable_rc6=-1 (e.g., the default value), we'll
> attempt to enable plain RC6 only on SNB. For Ivy Bridge, the behavior
> stays the same as always - we enable both RC6 and deep RC6.
We appear to be lacking a bunch of tested-bys for what we proclaim to
have been tested.
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
next prev parent reply other threads:[~2012-02-11 12:59 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-11 12:34 [PATCH 0/2] Another chapter in RC6 saga Eugeni Dodonov
2012-02-11 12:34 ` [PATCH 1/2] drm/i915: allow to select rc6 modes via kernel parameter Eugeni Dodonov
2012-02-11 12:56 ` Chris Wilson
2012-02-11 18:13 ` Kai Krakow
2012-02-11 19:09 ` Eugeni Dodonov
2012-02-11 19:23 ` [PATCH 1/1] " Eugeni Dodonov
2012-02-11 19:57 ` Chris Wilson
2012-02-12 20:52 ` Ben Widawsky
2012-02-12 23:16 ` Eugeni Dodonov
2012-02-13 8:33 ` Ben Widawsky
2012-02-13 11:37 ` Eugeni Dodonov
2012-02-11 12:34 ` [PATCH 2/2] drm/i915: enable plain RC6 on Sandy Bridge by default Eugeni Dodonov
2012-02-11 12:59 ` Chris Wilson [this message]
2012-02-11 19:24 ` Eugeni Dodonov
2012-02-12 10:16 ` Kai Krakow
2012-02-12 20:10 ` Keith Packard
2012-02-13 0:34 ` Eugeni Dodonov
2012-02-14 4:01 ` Keith Packard
-- strict thread matches above, loose matches on Subject: below --
2012-02-11 20:26 Luigi Forte
2012-03-23 14:57 [PATCH 0/2] RC6 changes for 3.4 got missing Eugeni Dodonov
2012-03-23 14:57 ` [PATCH 2/2] drm/i915: enable plain RC6 on Sandy Bridge by default Eugeni Dodonov
2012-03-23 15:06 ` Chris Wilson
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