<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>dmam_pool_create</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="The Linux Kernel API"><link rel="up" href="ch04s03.html" title="More Memory Management Functions"><link rel="prev" href="API-dma-pool-free.html" title="dma_pool_free"><link rel="next" href="API-dmam-pool-destroy.html" title="dmam_pool_destroy"></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">dmam_pool_create</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-dma-pool-free.html">Prev</a> </td><th width="60%" align="center">More Memory Management Functions</th><td width="20%" align="right"> <a accesskey="n" href="API-dmam-pool-destroy.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-dmam-pool-create"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>dmam_pool_create —
Managed <code class="function">dma_pool_create</code>
</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 dma_pool * <b class="fsfunc">dmam_pool_create </b>(</code></td><td>const char * <var class="pdparam">name</var>, </td></tr><tr><td> </td><td>struct device * <var class="pdparam">dev</var>, </td></tr><tr><td> </td><td>size_t <var class="pdparam">size</var>, </td></tr><tr><td> </td><td>size_t <var class="pdparam">align</var>, </td></tr><tr><td> </td><td>size_t <var class="pdparam">allocation</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1"><a name="idp306341060"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>name</code></em></span></dt><dd><p>
name of pool, for diagnostics
</p></dd><dt><span class="term"><em class="parameter"><code>dev</code></em></span></dt><dd><p>
device that will be doing the DMA
</p></dd><dt><span class="term"><em class="parameter"><code>size</code></em></span></dt><dd><p>
size of the blocks in this pool.
</p></dd><dt><span class="term"><em class="parameter"><code>align</code></em></span></dt><dd><p>
alignment requirement for blocks; must be a power of two
</p></dd><dt><span class="term"><em class="parameter"><code>allocation</code></em></span></dt><dd><p>
returned blocks won't cross this boundary (or zero)
</p></dd></dl></div></div><div class="refsect1"><a name="idp306346852"></a><h2>Description</h2><p>
Managed <code class="function">dma_pool_create</code>. DMA pool created with this function is
automatically destroyed on driver detach.
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