From: Daniel Vetter <daniel@ffwll.ch>
To: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org, chris@chris-wilson-co.uk
Subject: Re: [PATCH 1/2] drm/i915: Don't emit semaphore wait if wrap happened
Date: Tue, 11 Dec 2012 14:08:30 +0100 [thread overview]
Message-ID: <20121211130830.GS11556@phenom.ffwll.local> (raw)
In-Reply-To: <1355146908-8645-1-git-send-email-mika.kuoppala@intel.com>
On Mon, Dec 10, 2012 at 03:41:48PM +0200, Mika Kuoppala wrote:
> If wrap just happened we need to prevent emitting waits for
> pre wrap values. Detect this and emit no-ops instead.
>
> v2: Use olr > seqno to detect wrap instead of *seqno == 0
> as suggested by Chris Wilson.
>
> v3: Use last used seqno to detect the wraparound. From
> Chris Wilson
>
> v4: Fixed unnecessary last_seqno assigment
>
> References: https://bugs.freedesktop.org/show_bug.cgi?id=57967
> Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Ok, next try. Applied these two fixes and the seqno wrap patcha again,
let's see what happens.
-Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
next prev parent reply other threads:[~2012-12-11 13:06 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <f5ae8aplv4f@fmsmga002.fm.intel.com>
2012-12-10 13:41 ` [PATCH 1/2] drm/i915: Don't emit semaphore wait if wrap happened Mika Kuoppala
2012-12-11 13:08 ` Daniel Vetter [this message]
2012-12-10 11:56 Mika Kuoppala
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