1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>drm_gem_cma_prime_import_sg_table</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Linux DRM Developer's Guide"><link rel="up" href="drm-memory-management.html#idp1123226860" title="CMA Helper Functions Reference"><link rel="prev" href="API-drm-gem-cma-prime-get-sg-table.html" title="drm_gem_cma_prime_get_sg_table"><link rel="next" href="API-drm-gem-cma-prime-mmap.html" title="drm_gem_cma_prime_mmap"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">drm_gem_cma_prime_import_sg_table</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-drm-gem-cma-prime-get-sg-table.html">Prev</a>&#160;</td><th width="60%" align="center">CMA Helper Functions Reference</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-drm-gem-cma-prime-mmap.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-drm-gem-cma-prime-import-sg-table"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>drm_gem_cma_prime_import_sg_table &#8212; 
2     produce a CMA GEM object from another driver's scatter/gather table of pinned pages
3 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">struct drm_gem_object * <b class="fsfunc">drm_gem_cma_prime_import_sg_table </b>(</code></td><td>struct drm_device * <var class="pdparam">dev</var>, </td></tr><tr><td>&#160;</td><td>struct dma_buf_attachment * <var class="pdparam">attach</var>, </td></tr><tr><td>&#160;</td><td>struct sg_table * <var class="pdparam">sgt</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1123310468"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>dev</code></em></span></dt><dd><p>
4     device to import into
5    </p></dd><dt><span class="term"><em class="parameter"><code>attach</code></em></span></dt><dd><p>
6     DMA-BUF attachment
7    </p></dd><dt><span class="term"><em class="parameter"><code>sgt</code></em></span></dt><dd><p>
8     scatter/gather table of pinned pages
9    </p></dd></dl></div></div><div class="refsect1"><a name="idp1123314036"></a><h2>Description</h2><p>
10   This function imports a scatter/gather table exported via DMA-BUF by
11   another driver. Imported buffers must be physically contiguous in memory
12   (i.e. the scatter/gather table must contain a single entry). Drivers that
13   use the CMA helpers should set this as their DRM driver's
14   -&gt;<code class="function">gem_prime_import_sg_table</code> callback.
15</p></div><div class="refsect1"><a name="idp1123315516"></a><h2>Returns</h2><p>
16   A pointer to a newly created GEM object or an ERR_PTR-encoded negative
17   error code on failure.
18</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-drm-gem-cma-prime-get-sg-table.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="drm-memory-management.html#idp1123226860">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-drm-gem-cma-prime-mmap.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">drm_gem_cma_prime_get_sg_table</span>&#160;</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">&#160;<span class="phrase">drm_gem_cma_prime_mmap</span></td></tr></table></div></body></html>
19