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<p class="MsoNormal">Currently clGetDeviceInfo() returns an empty string when queried for CL_DEVICE_EXTENSIONS.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Looking through both the Mesa and LLVM/Clang code I see references to the following extensions:<o:p></o:p></p>
<p class="MsoNormal"> cl_khr_fp16<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:.5in">cl_khr_fp64<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">cl_khr_int64_base_atomics<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">cl_khr_int64_extended_atomics<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">cl_khr_gl_sharing<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">cl_khr_gl_event<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">cl_khr_d3d10_sharing<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">cl_khr_global_int32_base_atomics<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">cl_khr_global_in32_extended_atomics<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">cl_khr_local_in32_base_atomics<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">cl_khr_local_int32_extended_atomics<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">cl_khr_byte_addressable_store<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">cl_khr_3d_image_writes<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">So are any of these extensions supported within Mesa for the R600 or SI implementation?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m not finding the Khronos OpenCL spec to be completely clear on this, but it seems that extensions that are possible, even if not enabled, should be returned by clGetDeviceInfo()
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Can anyone shed some light on this for me?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span style="font-size:14.0pt">Al Dorrington<o:p></o:p></span></b></p>
<p class="MsoNormal"><i><span style="font-size:10.0pt">Software Engineer Sr<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:10.0pt">Lockheed Martin, Mission Systems and Training<o:p></o:p></span></i></p>
<p class="MsoNormal"><o:p> </o:p></p>
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