From mboxrd@z Thu Jan  1 00:00:00 1970
From: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Subject: Re: [PATCH 6/7] drm/radeon: allow asynchronous waiting on foreign
 fences
Date: Thu, 04 Sep 2014 14:08:29 +0200
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To: =?windows-1252?Q?Christian_K=F6nig?= <deathsimple@vodafone.de>, "dri-devel@lists.freedesktop.org" <dri-devel@lists.freedesktop.org>
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Hey,

Op 04-09-14 om 13:54 schreef Christian K=F6nig:
> Am 04.09.2014 um 13:42 schrieb Maarten Lankhorst:
>> Use the semaphore mechanism to make this happen, this uses signaling
>> from the cpu instead of signaling by the gpu.
>
> I'm not sure if this will work reliable when the semaphores are in system=
 memory. We might need to reserve some VRAM for them instead.
>
> Regards,
> Christian.
Why would it be unreliable? I mostly kept it in semaphore for simplicity.

~Maarten