<html>
<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body>
<p>
<div>
<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [anv] vkCmdCopyBuffer() and vkCmdCopyQueryPoolResults() write-after-write hazard"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108894#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [anv] vkCmdCopyBuffer() and vkCmdCopyQueryPoolResults() write-after-write hazard"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108894">bug 108894</a>
from <span class="vcard"><a class="email" href="mailto:lionel.g.landwerlin@linux.intel.com" title="Lionel Landwerlin <lionel.g.landwerlin@linux.intel.com>"> <span class="fn">Lionel Landwerlin</span></a>
</span></b>
<pre>Got it.
Yes, I think you need to put barriers because in Anv we're using the 3d
pipeline to copy buffers, whereas timestamps are copied using the command
streamer.
Those being 2 different pieces of hardware, there is no guarantee about which
one is going to write to memory first/last.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the QA Contact for the bug.</li>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>