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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Android build fails to link: undefined reference to 'tiled_to_linear'"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106669">106669</a>
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<th>Summary</th>
<td>Android build fails to link: undefined reference to 'tiled_to_linear'
</td>
</tr>
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<th>Product</th>
<td>Mesa
</td>
</tr>
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<th>Version</th>
<td>git
</td>
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<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Keywords</th>
<td>bisected, regression
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>Drivers/DRI/i965
</td>
</tr>
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<th>Assignee</th>
<td>scott.d.phillips@intel.com
</td>
</tr>
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<th>Reporter</th>
<td>mark.a.janes@intel.com
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</tr>
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<th>QA Contact</th>
<td>intel-3d-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>drivers/dri/i965/intel_mipmap_tree.c:3194: error: undefined reference to
'tiled_to_linear'
Bisected to:
d21c086d819d78fb3f6abcbb14aa492970f442aa
Author: Scott D Phillips <<a href="mailto:scott.d.phillips@intel.com">scott.d.phillips@intel.com</a>>
i965/tiled_memcpy: inline movntdqa loads in tiled_to_linear
The reference for MOVNTDQA says:
For WC memory type, the nontemporal hint may be implemented by
loading a temporary internal buffer with the equivalent of an
aligned cache line without filling this data to the cache.
[...] Subsequent MOVNTDQA reads to unread portions of the WC
cache line will receive data from the temporary internal
buffer if data is available.
This hidden cache line sized temporary buffer can improve the
read performance from wc maps.</pre>
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