<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 14 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri","sans-serif";
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri","sans-serif";}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="blue" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal">I am having an issue with a memory leak in an OpenCL program I am testing.<o:p></o:p></p>
<p class="MsoNormal">In the program I call the same kernel repeatedly, for every pixel in an image. (Probably not the most efficient code, but it is a learning/testing thing.)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">One thing in particular I have not yet been able to figure out, is what releases the reference counts for the shader->kernel_param resource created in evergreen_compute_upload_input().<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Tracing through the calls:<o:p></o:p></p>
<p class="MsoNormal"> evergreen_compute_upload_input()<o:p></o:p></p>
<p class="MsoNormal"> evergreen_cs_set_constant_buffer()<o:p></o:p></p>
<p class="MsoNormal"> r600_set_constant_buffer()<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I can see that if r600_set_constant_buffer() is passed a null pipe_constant_buffer input, that it would reset the stat masks and make the call to pipe_resource_reference() with a NULL, to decrement the count.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">But I don’t see where that would happen. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am thinking that perhaps there should be something to release the reference count for that buffer, either after the evergreen_launch_grid() call, or perhaps as the last thing within that call, after the compute_emit_cs() call.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Or, is this call happening somewhere else that I haven’t found?<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"><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>
</div>
</body>
</html>