From: Chris Wilson <chris@chris-wilson.co.uk>
To: intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH] drm/i915: Prefer to pageflip on the active ring on IvyBridge
Date: Thu, 26 Apr 2012 20:42:15 +0100 [thread overview]
Message-ID: <1335469371_60931@CP5-2952> (raw)
In-Reply-To: <1334586581-15663-1-git-send-email-chris@chris-wilson.co.uk>
On Mon, 16 Apr 2012 15:29:41 +0100, Chris Wilson <chris@chris-wilson.co.uk> wrote:
> IvyBridge has the ability to pageflip from either the Render or Blitter
> rings. Scheduling the pageflip on the active ring (if the new scanout is
> being rendered on either pipeline) saves inserting a semaphore (if
> available) and forcing a stall on both pipelines. We presume that the
> current scanout is inactive.
As a follow-up to my own suggestion; don't even think of pageflipping from
the render ring, it is full of disappointment.
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
prev parent reply other threads:[~2012-04-26 19:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-16 14:29 [PATCH] drm/i915: Prefer to pageflip on the active ring on IvyBridge Chris Wilson
2012-04-16 14:36 ` Chris Wilson
2012-04-26 19:42 ` Chris Wilson [this message]
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