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<th>Priority</th>
<td>medium
</td>
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<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - si_dma_copy_tile causes GPU hangs"
href="https://bugs.freedesktop.org/show_bug.cgi?id=83500">83500</a>
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</tr>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
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<th>Summary</th>
<td>si_dma_copy_tile causes GPU hangs
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr>
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<th>OS</th>
<td>Linux (All)
</td>
</tr>
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<th>Reporter</th>
<td>greg@chown.ath.cx
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Version</th>
<td>git
</td>
</tr>
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<th>Component</th>
<td>Drivers/Gallium/radeonsi
</td>
</tr>
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<th>Product</th>
<td>Mesa
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=105745" name="attach_105745" title="Workaround">attachment 105745</a> <a href="attachment.cgi?id=105745&action=edit" title="Workaround">[details]</a></span>
Workaround
Async DMA linear to tiled copies are causing GPU hangs in some cases. On Cape
Verde, I can easily triggers this as described in [1]. The game Brutal Legend
also triggers similar hangs when it streams assets while gameplay.
Disabling usage of this function and using the resource_copy_region fallback
instead fixes all hangs. The attached patch does that.
[1] <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Random radeonsi crashes"
href="show_bug.cgi?id=79980#c124">https://bugs.freedesktop.org/show_bug.cgi?id=79980#c124</a></pre>
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</p>
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