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<p class="msipheader23c54b6f" style="margin:0in"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:green">[Public]</span><o:p></o:p></p>
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<p class="MsoNormal">Before calling into psp_cmd_submit_buf, a mutex psp->cmd_buf_mutex is there, and after entering psp_cmd_submit_buf, there is another mutex psp->mutex, is it a bit redundant?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Guchun<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Clements, John <John.Clements@amd.com> <br>
<b>Sent:</b> Tuesday, August 3, 2021 5:50 PM<br>
<b>To:</b> amd-gfx@lists.freedesktop.org<br>
<b>Cc:</b> Zhang, Hawking <Hawking.Zhang@amd.com>; Li, Candice <Candice.Li@amd.com>; Lazar, Lijo <Lijo.Lazar@amd.com>; Chen, Guchun <Guchun.Chen@amd.com><br>
<b>Subject:</b> [PATCH] drm/amdgpu: added synchronization for psp cmd buf access<o:p></o:p></p>
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<p class="msipheadera4477989" style="margin:0in"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:blue">[AMD Official Use Only]</span><o:p></o:p></p>
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<p class="MsoNormal">Submitting patch to synchronize access to psp cmd submission memory to resolve potential race conditions.<o:p></o:p></p>
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