110 lines
12 KiB
HTML
Executable File
110 lines
12 KiB
HTML
Executable File
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
|
<html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
|
|
<title>MPI On Cell (Documentation): src/ppu/internal/dma/imoc_dma-get_ppu.c Source File</title>
|
|
<link href="../../doxygen.css" rel="stylesheet" type="text/css">
|
|
<link href="../../tabs.css" rel="stylesheet" type="text/css">
|
|
</head><body>
|
|
<!-- Generated by Doxygen 1.5.6 -->
|
|
<div class="navigation" id="top">
|
|
<div class="tabs">
|
|
<ul>
|
|
<li><a href="../../main.html"><span>Main Page</span></a></li>
|
|
<li><a href="../../modules.html"><span>Modules</span></a></li>
|
|
<li><a href="../../annotated.html"><span>Data Structures</span></a></li>
|
|
<li class="current"><a href="../../files.html"><span>Files</span></a></li>
|
|
</ul>
|
|
</div>
|
|
<h1>src/ppu/internal/dma/imoc_dma-get_ppu.c</h1><a href="../../d4/d2d/imoc__dma-get__ppu_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#include <string.h></span>
|
|
<a name="l00002"></a>00002
|
|
<a name="l00003"></a>00003 <span class="preprocessor">#include <<a class="code" href="../../d0/d3a/spu_2moc_8h.html">moc.h</a>></span>
|
|
<a name="l00004"></a>00004 <span class="preprocessor">#include <<a class="code" href="../../db/d62/moc__dma__ppu_8h.html">ppu/moc_dma_ppu.h</a>></span>
|
|
<a name="l00005"></a>00005 <span class="preprocessor">#include <<a class="code" href="../../d2/d42/imoc__macros_8h.html">internal/imoc_macros.h</a>></span>
|
|
<a name="l00006"></a>00006 <span class="preprocessor">#include <<a class="code" href="../../de/df9/imoc__dma__ppu_8h.html">internal/ppu/imoc_dma_ppu.h</a>></span>
|
|
<a name="l00007"></a>00007 <span class="preprocessor">#include <<a class="code" href="../../d6/d09/imoc__core__ppu_8h.html">internal/ppu/imoc_core_ppu.h</a>></span>
|
|
<a name="l00008"></a>00008
|
|
<a name="l00009"></a><a class="code" href="../../d2/de2/group__internal__p2p__dma.html#g53d36c567e4c98e5d258a7857096e7ab">00009</a> <span class="keywordtype">int</span> <a class="code" href="../../d2/de2/group__internal__p2p__dma.html#g53d36c567e4c98e5d258a7857096e7ab" title="Internal wrapper-function for a blocking DMA-get operation.">IMOC_get_data</a>(<span class="keywordtype">void</span>* target, uint64_t source, uint32_t size, <span class="keywordtype">int</span> dest)
|
|
<a name="l00010"></a>00010 {
|
|
<a name="l00011"></a>00011 uint32_t remainder_16b;
|
|
<a name="l00012"></a>00012 uint32_t remainder_16kb;
|
|
<a name="l00013"></a>00013 uint32_t offset;
|
|
<a name="l00014"></a>00014 <span class="keywordtype">char</span> buffer[16] <a class="code" href="../../d3/dd3/group__internal__p2p__bmalloc.html#gad8750c7ba3d6da9c137c2c462d2c531" title="void bmalloc_print_nodes() { if (!bmalloc_first_node) printf(&quot;No nodes in list\n&quot;);...">__attribute__</a>((__aligned__(16)));
|
|
<a name="l00015"></a>00015 <span class="keywordtype">int</span> err;
|
|
<a name="l00016"></a>00016 uint32_t dmastatus;
|
|
<a name="l00017"></a>00017
|
|
<a name="l00018"></a>00018 <span class="comment">/* transfers have to be multiples of 16 bytes */</span>
|
|
<a name="l00019"></a>00019 remainder_16b = size % 16;
|
|
<a name="l00020"></a>00020
|
|
<a name="l00021"></a>00021 <span class="comment">/* subtracting remainder means the transfer has a valid size now */</span>
|
|
<a name="l00022"></a>00022 size -= remainder_16b;
|
|
<a name="l00023"></a>00023 offset = 0;
|
|
<a name="l00024"></a>00024
|
|
<a name="l00025"></a>00025 <span class="comment">/* first case: transfer of size smaller than maximum allowed one (16kbyte) */</span>
|
|
<a name="l00026"></a>00026 <span class="keywordflow">if</span> (size <= <a class="code" href="../../d1/d82/moc_8h.html#0a017736e25e8020d6ddc62e8fc96141" title="Maximum byte-count which can be transferred by one DMA-transfer.">MAX_DMA_CALL_SIZE</a>)
|
|
<a name="l00027"></a>00027 {
|
|
<a name="l00028"></a>00028 err = spe_mfcio_put(
|
|
<a name="l00029"></a>00029 <a class="code" href="../../dc/df1/group__internal__spu__thread.html#ga5b74732b1e31ec1674ea0e5ae465c4e" title="array of SPU-Threads.">moc_spu_thread_list</a>[dest - <a class="code" href="../../dc/df1/group__internal__spu__thread.html#gf4270da4dbf663fde50a876067ed0d52" title="actual number of PPU-Threads.">moc_ppu_thread_count</a>].speid, source,
|
|
<a name="l00030"></a>00030 target, size, 15, 0, 0);
|
|
<a name="l00031"></a>00031 <span class="keywordflow">if</span> (err)
|
|
<a name="l00032"></a>00032 <span class="keywordflow">return</span> <a class="code" href="../../d8/da1/group__environment__error.html#g05b3a70831c823a59014c4853a76ca7e" title="Internal MOC (implementation) error.">MOC_ERR_INTERN</a>;
|
|
<a name="l00033"></a>00033 }
|
|
<a name="l00034"></a>00034 <span class="comment">/* second case: transfer of bigger size is simply split into parts of 16kb */</span>
|
|
<a name="l00035"></a>00035 <span class="keywordflow">else</span>
|
|
<a name="l00036"></a>00036 {
|
|
<a name="l00037"></a>00037 remainder_16kb = size % <a class="code" href="../../d1/d82/moc_8h.html#0a017736e25e8020d6ddc62e8fc96141" title="Maximum byte-count which can be transferred by one DMA-transfer.">MAX_DMA_CALL_SIZE</a>;
|
|
<a name="l00038"></a>00038 <span class="keywordflow">while</span> (offset + <a class="code" href="../../d1/d82/moc_8h.html#0a017736e25e8020d6ddc62e8fc96141" title="Maximum byte-count which can be transferred by one DMA-transfer.">MAX_DMA_CALL_SIZE</a> <= size)
|
|
<a name="l00039"></a>00039 {
|
|
<a name="l00040"></a>00040 err = spe_mfcio_put(
|
|
<a name="l00041"></a>00041 <a class="code" href="../../dc/df1/group__internal__spu__thread.html#ga5b74732b1e31ec1674ea0e5ae465c4e" title="array of SPU-Threads.">moc_spu_thread_list</a>[dest - <a class="code" href="../../dc/df1/group__internal__spu__thread.html#gf4270da4dbf663fde50a876067ed0d52" title="actual number of PPU-Threads.">moc_ppu_thread_count</a>].speid,
|
|
<a name="l00042"></a>00042 source + offset, target + offset, <a class="code" href="../../d1/d82/moc_8h.html#0a017736e25e8020d6ddc62e8fc96141" title="Maximum byte-count which can be transferred by one DMA-transfer.">MAX_DMA_CALL_SIZE</a>, 15, 0,
|
|
<a name="l00043"></a>00043 0);
|
|
<a name="l00044"></a>00044 <span class="keywordflow">if</span> (err)
|
|
<a name="l00045"></a>00045 <span class="keywordflow">return</span> <a class="code" href="../../d8/da1/group__environment__error.html#g05b3a70831c823a59014c4853a76ca7e" title="Internal MOC (implementation) error.">MOC_ERR_INTERN</a>;
|
|
<a name="l00046"></a>00046
|
|
<a name="l00047"></a>00047 offset += <a class="code" href="../../d1/d82/moc_8h.html#0a017736e25e8020d6ddc62e8fc96141" title="Maximum byte-count which can be transferred by one DMA-transfer.">MAX_DMA_CALL_SIZE</a>;
|
|
<a name="l00048"></a>00048 }
|
|
<a name="l00049"></a>00049 <span class="keywordflow">if</span> (remainder_16kb > 0)
|
|
<a name="l00050"></a>00050 {
|
|
<a name="l00051"></a>00051 err = spe_mfcio_put(
|
|
<a name="l00052"></a>00052 <a class="code" href="../../dc/df1/group__internal__spu__thread.html#ga5b74732b1e31ec1674ea0e5ae465c4e" title="array of SPU-Threads.">moc_spu_thread_list</a>[dest - <a class="code" href="../../dc/df1/group__internal__spu__thread.html#gf4270da4dbf663fde50a876067ed0d52" title="actual number of PPU-Threads.">moc_ppu_thread_count</a>].speid,
|
|
<a name="l00053"></a>00053 source + offset, target + offset, remainder_16kb, 15, 0, 0);
|
|
<a name="l00054"></a>00054 <span class="keywordflow">if</span> (err)
|
|
<a name="l00055"></a>00055 <span class="keywordflow">return</span> <a class="code" href="../../d8/da1/group__environment__error.html#g05b3a70831c823a59014c4853a76ca7e" title="Internal MOC (implementation) error.">MOC_ERR_INTERN</a>;
|
|
<a name="l00056"></a>00056 }
|
|
<a name="l00057"></a>00057 }
|
|
<a name="l00058"></a>00058 <span class="comment">/* if size was reduced previously the remaining bytes have to be transfered */</span>
|
|
<a name="l00059"></a>00059 <span class="keywordflow">if</span> (remainder_16b > 0)
|
|
<a name="l00060"></a>00060 {
|
|
<a name="l00061"></a>00061 <span class="comment">/* minimum allowed transfer is 16bytes so transfer this size into a buffer */</span>
|
|
<a name="l00062"></a>00062 err = spe_mfcio_put(
|
|
<a name="l00063"></a>00063 <a class="code" href="../../dc/df1/group__internal__spu__thread.html#ga5b74732b1e31ec1674ea0e5ae465c4e" title="array of SPU-Threads.">moc_spu_thread_list</a>[dest - <a class="code" href="../../dc/df1/group__internal__spu__thread.html#gf4270da4dbf663fde50a876067ed0d52" title="actual number of PPU-Threads.">moc_ppu_thread_count</a>].speid, source
|
|
<a name="l00064"></a>00064 + size, buffer, 16, 15, 0, 0);
|
|
<a name="l00065"></a>00065 <span class="keywordflow">if</span> (err)
|
|
<a name="l00066"></a>00066 <span class="keywordflow">return</span> <a class="code" href="../../d8/da1/group__environment__error.html#g05b3a70831c823a59014c4853a76ca7e" title="Internal MOC (implementation) error.">MOC_ERR_INTERN</a>;
|
|
<a name="l00067"></a>00067 <span class="comment">/* waiting for dma completion necessary */</span>
|
|
<a name="l00068"></a>00068 err = spe_mfcio_tag_status_read(<a class="code" href="../../dc/df1/group__internal__spu__thread.html#ga5b74732b1e31ec1674ea0e5ae465c4e" title="array of SPU-Threads.">moc_spu_thread_list</a>[dest
|
|
<a name="l00069"></a>00069 - <a class="code" href="../../dc/df1/group__internal__spu__thread.html#gf4270da4dbf663fde50a876067ed0d52" title="actual number of PPU-Threads.">moc_ppu_thread_count</a>].speid, 0, SPE_TAG_ALL, &dmastatus);
|
|
<a name="l00070"></a>00070 <span class="keywordflow">if</span> (err)
|
|
<a name="l00071"></a>00071 <span class="keywordflow">return</span> <a class="code" href="../../d8/da1/group__environment__error.html#g05b3a70831c823a59014c4853a76ca7e" title="Internal MOC (implementation) error.">MOC_ERR_INTERN</a>;
|
|
<a name="l00072"></a>00072 <span class="comment">/* copy only the valid bytes into the target buffer */</span>
|
|
<a name="l00073"></a>00073 memcpy(target + size, buffer, remainder_16b);
|
|
<a name="l00074"></a>00074 }
|
|
<a name="l00075"></a>00075 <span class="keywordflow">else</span>
|
|
<a name="l00076"></a>00076 {
|
|
<a name="l00077"></a>00077 <span class="comment">/* waiting for dma completion necessary */</span>
|
|
<a name="l00078"></a>00078 err = spe_mfcio_tag_status_read(<a class="code" href="../../dc/df1/group__internal__spu__thread.html#ga5b74732b1e31ec1674ea0e5ae465c4e" title="array of SPU-Threads.">moc_spu_thread_list</a>[dest
|
|
<a name="l00079"></a>00079 - <a class="code" href="../../dc/df1/group__internal__spu__thread.html#gf4270da4dbf663fde50a876067ed0d52" title="actual number of PPU-Threads.">moc_ppu_thread_count</a>].speid, 0, SPE_TAG_ALL, &dmastatus);
|
|
<a name="l00080"></a>00080 <span class="keywordflow">if</span> (err)
|
|
<a name="l00081"></a>00081 <span class="keywordflow">return</span> <a class="code" href="../../d8/da1/group__environment__error.html#g05b3a70831c823a59014c4853a76ca7e" title="Internal MOC (implementation) error.">MOC_ERR_INTERN</a>;
|
|
<a name="l00082"></a>00082
|
|
<a name="l00083"></a>00083 }
|
|
<a name="l00084"></a>00084
|
|
<a name="l00085"></a>00085 <span class="keywordflow">return</span> <a class="code" href="../../d8/da1/group__environment__error.html#g8a73ed6676bcf0c0607d98482ca1aca4" title="No error.">MOC_SUCCESS</a>;
|
|
<a name="l00086"></a>00086 }
|
|
<a name="l00087"></a>00087
|
|
</pre></div></div>
|
|
<hr size="1"><address style="text-align: right;"><small>Generated on Thu Feb 12 13:49:47 2009 for MPI On Cell (Documentation) by
|
|
<a href="http://www.doxygen.org/index.html">
|
|
<img src="../../doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.6 </small></address>
|
|
</body>
|
|
</html>
|