From: "Szwichtenberg, Radoslaw" <radoslaw.szwichtenberg@intel.com>
To: "intel-gfx@lists.freedesktop.org"
<intel-gfx@lists.freedesktop.org>,
"chris@chris-wilson.co.uk" <chris@chris-wilson.co.uk>
Subject: Re: [PATCH 1/3] drm/i915: Enable fine-tuned RPS for cherryview
Date: Tue, 14 Feb 2017 15:28:37 +0000 [thread overview]
Message-ID: <1487086115.14524.2.camel@intel.com> (raw)
In-Reply-To: <20170210150348.22146-1-chris@chris-wilson.co.uk>
On Fri, 2017-02-10 at 15:03 +0000, Chris Wilson wrote:
> When the RPS tuning was applied to Baytrail, in commit 8fb55197e64d
> ("drm/i915: Agressive downclocking on Baytrail"), concern was given that
> it might cause Cherryview excess wakeups of the common power well.
> However, the static thresholds perform poorly for Kodi, and the GPU is
> unable to deliver the video frames on time. Enabling the dynamic, finer
> thresholds used on all other platforms (including Skylake and Broxton
> that also have the same multiple powerwell concerns) allows the GPU to
> pick a more appropriate frequency and not drop frames.
>
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Radoslaw Szwichtenberg <radoslaw.szwichtenberg@intel.com>
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prev parent reply other threads:[~2017-02-14 15:28 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-10 15:03 [PATCH 1/3] drm/i915: Enable fine-tuned RPS for cherryview Chris Wilson
2017-02-10 15:03 ` [PATCH 2/3] drm/i915: Don't accidentally increase the frequency in handling DOWN rps Chris Wilson
2017-02-14 15:25 ` Szwichtenberg, Radoslaw
2017-02-10 15:03 ` [PATCH 3/3] drm/i915: Only apply the jump to the "efficient RPS" frequency on startup Chris Wilson
2017-02-14 16:19 ` Szwichtenberg, Radoslaw
2017-02-10 17:52 ` ✗ Fi.CI.BAT: warning for series starting with [1/3] drm/i915: Enable fine-tuned RPS for cherryview Patchwork
2017-02-10 22:52 ` ✓ Fi.CI.BAT: success " Patchwork
2017-02-14 22:38 ` Chris Wilson
2017-02-14 15:28 ` Szwichtenberg, Radoslaw [this message]
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