From: Ben Widawsky <ben@bwidawsk.net>
To: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH] drm/i915: Handle sync_seqno correctly when seqno has wrapped.
Date: Mon, 19 Nov 2012 09:21:48 -0800 [thread overview]
Message-ID: <20121119092148.710df2a0@bwidawsk.net> (raw)
In-Reply-To: <87obitc15x.fsf@gaia.fi.intel.com>
On Mon, 19 Nov 2012 12:55:22 +0200
Mika Kuoppala <mika.kuoppala@linux.intel.com> wrote:
>
> On Tue, 13 Nov 2012 08:39:26 -0800, Ben Widawsky <ben@bwidawsk.net> wrote:
> > Can you add another patch on top of this to have the starting seqno be a
> > near pre-wrap value so we can catch bugs even without igt.
>
> I tried that but failed. I suspect that there is something in hw/sw
> that doesn't like if first seqno is >0x80000000. Something in hw needs
> to initialized explicitly if seqno is not starting from 1?
>
Nothing that I am aware of. If you have the first be 0, and then add a
huge jump right after that, does it work?
--
Ben Widawsky, Intel Open Source Technology Center
next prev parent reply other threads:[~2012-11-19 17:22 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-13 13:51 [PATCH] drm/i915: Handle sync_seqno correctly when seqno has wrapped Mika Kuoppala
2012-11-13 14:15 ` Chris Wilson
2012-11-13 16:39 ` Ben Widawsky
2012-11-13 16:45 ` Daniel Vetter
2012-11-13 16:52 ` Ben Widawsky
2012-11-13 16:54 ` Chris Wilson
2012-11-19 10:55 ` Mika Kuoppala
2012-11-19 17:21 ` Ben Widawsky [this message]
2012-11-29 8:43 ` Mika Kuoppala
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