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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - radeonsi: OpenCL not working correctly on a big endian machine"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105950">105950</a>
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<th>Summary</th>
<td>radeonsi: OpenCL not working correctly on a big endian machine
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<th>Product</th>
<td>Mesa
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<th>Version</th>
<td>17.3
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<th>Hardware</th>
<td>PowerPC
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<th>OS</th>
<td>Linux (All)
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>Drivers/Gallium/radeonsi
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
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<th>Reporter</th>
<td>bas@daedalean.ai
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<th>QA Contact</th>
<td>dri-devel@lists.freedesktop.org
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<pre>Running any OpenCL program on a big endian machine using a radeonsi card fails.
- union si_vgt_param_key uses a bitfield shared with a 32 bit value. This
causes the index to be wrong on a big endian machine, and crashes any OpenCL
program with a segfault.
- si_setup_user_sgprs_co_v2 in si_compute.c fills a dispatch_packet struct with
values which are uploaded to the GPU. To ensure this works correctly, these
values need to be converted to little endian.
I'll send patches to the mesa-dev list for both these issues.
Bas Vermeulen</pre>
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