<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
<title>UbixOS V2: src/sys/vmm/getfreevirtualpage.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 1.4.7 -->
<div class="tabs">
<ul>
<li><a href="main.html"><span>Main Page</span></a></li>
<li><a href="classes.html"><span>Data Structures</span></a></li>
<li id="current"><a href="files.html"><span>Files</span></a></li>
<li><a href="dirs.html"><span>Directories</span></a></li>
<li>
<form action="search.php" method="get">
<table cellspacing="0" cellpadding="0" border="0">
<tr>
<td><label> <u>S</u>earch for </label></td>
<td><input type="text" name="query" value="" size="20" accesskey="s"/></td>
</tr>
</table>
</form>
</li>
</ul></div>
<div class="tabs">
<ul>
<li><a href="files.html"><span>File List</span></a></li>
<li><a href="globals.html"><span>Globals</span></a></li>
</ul></div>
<div class="nav">
<a class="el" href="dir_897b6a2d7bab147dd1db58381aad3984.html">src</a> » <a class="el" href="dir_832905b1f7f5feaf61a306b40c0ac817.html">sys</a> » <a class="el" href="dir_b87deefade4e886319aa926bd3ba1491.html">vmm</a></div>
<h1>getfreevirtualpage.c</h1><a href="getfreevirtualpage_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*****************************************************************************************</span>
<a name="l00002"></a>00002 <span class="comment"> Copyright (c) 2002-2004 The UbixOS Project</span>
<a name="l00003"></a>00003 <span class="comment"> All rights reserved.</span>
<a name="l00004"></a>00004 <span class="comment"></span>
<a name="l00005"></a>00005 <span class="comment"> Redistribution and use in source and binary forms, with or without modification, are</span>
<a name="l00006"></a>00006 <span class="comment"> permitted provided that the following conditions are met:</span>
<a name="l00007"></a>00007 <span class="comment"></span>
<a name="l00008"></a>00008 <span class="comment"> Redistributions of source code must retain the above copyright notice, this list of</span>
<a name="l00009"></a>00009 <span class="comment"> conditions, the following disclaimer and the list of authors. Redistributions in binary</span>
<a name="l00010"></a>00010 <span class="comment"> form must reproduce the above copyright notice, this list of conditions, the following</span>
<a name="l00011"></a>00011 <span class="comment"> disclaimer and the list of authors in the documentation and/or other materials provided</span>
<a name="l00012"></a>00012 <span class="comment"> with the distribution. Neither the name of the UbixOS Project nor the names of its</span>
<a name="l00013"></a>00013 <span class="comment"> contributors may be used to endorse or promote products derived from this software</span>
<a name="l00014"></a>00014 <span class="comment"> without specific prior written permission.</span>
<a name="l00015"></a>00015 <span class="comment"></span>
<a name="l00016"></a>00016 <span class="comment"> THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY</span>
<a name="l00017"></a>00017 <span class="comment"> EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF</span>
<a name="l00018"></a>00018 <span class="comment"> MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL</span>
<a name="l00019"></a>00019 <span class="comment"> THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span>
<a name="l00020"></a>00020 <span class="comment"> SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT</span>
<a name="l00021"></a>00021 <span class="comment"> OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)</span>
<a name="l00022"></a>00022 <span class="comment"> HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR</span>
<a name="l00023"></a>00023 <span class="comment"> TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS</span>
<a name="l00024"></a>00024 <span class="comment"> SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<a name="l00025"></a>00025 <span class="comment"></span>
<a name="l00026"></a>00026 <span class="comment"> $Id: getfreevirtualpage_8c-source.html 88 2016-01-12 00:11:29Z reddawg $</span>
<a name="l00027"></a>00027 <span class="comment"></span>
<a name="l00028"></a>00028 <span class="comment">*****************************************************************************************/</span>
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="preprocessor">#include <<a class="code" href="vmm_8h.html">vmm/vmm.h</a>></span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <<a class="code" href="sched_8h.html">ubixos/sched.h</a>></span>
<a name="l00032"></a>00032 <span class="preprocessor">#include <<a class="code" href="kpanic_8h.html">ubixos/kpanic.h</a>></span>
<a name="l00033"></a>00033 <span class="preprocessor">#include <<a class="code" href="spinlock_8h.html">ubixos/spinlock.h</a>></span>
<a name="l00034"></a>00034 <span class="preprocessor">#include <<a class="code" href="kprint_8h.html">lib/kprint.h</a>></span>
<a name="l00035"></a>00035
<a name="l00036"></a><a class="code" href="getfreevirtualpage_8c.html#153dbb51837629ad18f14637d0357248">00036</a> <span class="keyword">static</span> <a class="code" href="spinlock_8h.html#a240e9404b4ede1e0d714610080d1176">spinLock_t</a> <a class="code" href="getfreevirtualpage_8c.html#153dbb51837629ad18f14637d0357248">fvpSpinLock</a> = <a class="code" href="spinlock_8h.html#0fe85a4f3642683148b25916d6c5eafd">SPIN_LOCK_INITIALIZER</a>;
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="comment">/************************************************************************</span>
<a name="l00039"></a>00039 <span class="comment"></span>
<a name="l00040"></a>00040 <span class="comment">Function: void *vmmGetFreeVirtualPage(pidType pid,int count);</span>
<a name="l00041"></a>00041 <span class="comment">Description: Returns A Free Page Mapped To The VM Space</span>
<a name="l00042"></a>00042 <span class="comment">Notes:</span>
<a name="l00043"></a>00043 <span class="comment"></span>
<a name="l00044"></a>00044 <span class="comment">08/11/02 - This Will Return Next Avilable Free Page Of Tasks VM Space</span>
<a name="l00045"></a>00045 <span class="comment"></span>
<a name="l00046"></a>00046 <span class="comment">************************************************************************/</span>
<a name="l00047"></a><a class="code" href="getfreevirtualpage_8c.html#fbc8bd5fa45d60baf5e8b5c47bf3f3b6">00047</a> <span class="keywordtype">void</span> *<a class="code" href="paging_8h.html#4b324672c4b25064eb8db1e3419337b1">vmmGetFreeVirtualPage</a>(<a class="code" href="types_8h.html#e438ba74394b14d7b24b6df3b3b8c252">pidType</a> pid, <span class="keywordtype">int</span> count,<span class="keywordtype">int</span> type) {
<a name="l00048"></a>00048 <span class="keywordtype">int</span> x = 0, y = 0, c = 0;
<a name="l00049"></a>00049 <a class="code" href="types_8h.html#5847ea0262a5aa61eee48cbe95544a78">uInt32</a> *pageTableSrc = 0x0;
<a name="l00050"></a>00050 <a class="code" href="types_8h.html#5847ea0262a5aa61eee48cbe95544a78">uInt32</a> *pageDir = 0x0;
<a name="l00051"></a>00051 <a class="code" href="types_8h.html#5847ea0262a5aa61eee48cbe95544a78">uInt32</a> start_page = 0x0;
<a name="l00052"></a>00052
<a name="l00053"></a>00053
<a name="l00054"></a>00054 <a class="code" href="spinlock_8h.html#2cd9a4502680fb8e7f0fe6b029e558b1">spinLock</a>(&<a class="code" href="getfreevirtualpage_8c.html#153dbb51837629ad18f14637d0357248">fvpSpinLock</a>);
<a name="l00055"></a>00055
<a name="l00056"></a>00056 pageDir = (<a class="code" href="types_8h.html#5847ea0262a5aa61eee48cbe95544a78">uInt32</a> *) <a class="code" href="paging_8h.html#aab3609eb02bd28ded8d1ea0512da979">parentPageDirAddr</a>;
<a name="l00057"></a>00057
<a name="l00058"></a>00058 <span class="comment">/* Lets Search For A Free Page */</span>
<a name="l00059"></a>00059 <span class="keywordflow">if</span> (<a class="code" href="sched_8h.html#54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#0933c70230d4ac8bc9953640c979f8d7">oInfo</a>.<a class="code" href="structosInfo.html#2833c1fa4a221941b5d1141dfa5beefd">vmStart</a> <= 0x100000)
<a name="l00060"></a>00060 <a class="code" href="kpanic_8h.html#db9a182aa071791a306163d50d653deb">kpanic</a>(<span class="stringliteral">"Invalid vmStart\n"</span>);
<a name="l00061"></a>00061
<a name="l00062"></a>00062 <span class="keywordflow">if</span> (type == <a class="code" href="paging_8h.html#4ede4e8b3e149ef94678acdae7de0e18">VM_THRD</a>) {
<a name="l00063"></a>00063 start_page = (<a class="code" href="types_8h.html#ba29fd78d95cce0ecb249c24b58d07da">u_int32_t</a>)(<a class="code" href="sched_8h.html#54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#481c2e7084fec272e616d3fb984036e2">td</a>.<a class="code" href="structthread.html#c770300b493b2ea844e634b7c98c4f6a">vm_daddr</a> + <a class="code" href="paging_8h.html#071caea8a82a06e754daca63317d3c07">ctob</a>(<a class="code" href="sched_8h.html#54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#481c2e7084fec272e616d3fb984036e2">td</a>.<a class="code" href="structthread.html#4ce0e0e5856efc85e111d2cb8748a0ee">vm_dsize</a>));
<a name="l00064"></a>00064 }
<a name="l00065"></a>00065 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (type == <a class="code" href="paging_8h.html#59a518704bf2f0b56603476bcb1eebbf">VM_TASK</a>) {
<a name="l00066"></a>00066 <span class="comment">//kprintf("vmStart");</span>
<a name="l00067"></a>00067 start_page = <a class="code" href="sched_8h.html#54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#0933c70230d4ac8bc9953640c979f8d7">oInfo</a>.<a class="code" href="structosInfo.html#2833c1fa4a221941b5d1141dfa5beefd">vmStart</a>;
<a name="l00068"></a>00068 }
<a name="l00069"></a>00069 <span class="keywordflow">else</span>
<a name="l00070"></a>00070 <a class="code" href="kpanic_8h.html#a5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"Invalid Type"</span>);
<a name="l00071"></a>00071
<a name="l00072"></a>00072 <span class="comment">//for (x = ((_current->td.vm_daddr + _current->td.vm_dsize) / (1024 * 4096)); x < 1024; x++) {</span>
<a name="l00073"></a>00073 <span class="keywordflow">for</span> (x = (start_page / (1024 * 4096)); x < 1024; x++) {
<a name="l00074"></a>00074 <span class="comment">/* Set Page Table Address */</span>
<a name="l00075"></a>00075 <span class="keywordflow">if</span> ((pageDir[x] & <a class="code" href="paging_8h.html#122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) != PAGE_PRESENT) {
<a name="l00076"></a>00076 <span class="comment">/* If Page Table Is Non Existant Then Set It Up */</span>
<a name="l00077"></a>00077 pageDir[x] = (<a class="code" href="types_8h.html#5847ea0262a5aa61eee48cbe95544a78">uInt32</a>) <a class="code" href="vmm_8h.html#976cf3919bf7c77c868021ec9374593b">vmmFindFreePage</a>(<a class="code" href="sched_8h.html#54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#30966587a60db6b40c8be6c387e11d81">id</a>) | <a class="code" href="paging_8h.html#f0fff7a38cd2c7a32d580787423b94ea">PAGE_DEFAULT</a>;
<a name="l00078"></a>00078 <span class="comment">/* Also Add It To Virtual Space So We Can Make Changes Later */</span>
<a name="l00079"></a>00079 pageTableSrc = (<a class="code" href="types_8h.html#5847ea0262a5aa61eee48cbe95544a78">uInt32</a> *) (<a class="code" href="paging_8h.html#a432d41840ad8a583a7e6af86feece4f">tablesBaseAddress</a> + (4096 * 767));
<a name="l00080"></a>00080 pageTableSrc[x] = pageDir[x];
<a name="l00081"></a>00081 y = 1;
<a name="l00082"></a>00082 <span class="comment">/* Reload Page Directory */</span>
<a name="l00083"></a>00083 <span class="keyword">asm</span>(
<a name="l00084"></a>00084 <span class="stringliteral">"movl %cr3,%eax\n"</span>
<a name="l00085"></a>00085 <span class="stringliteral">"movl %eax,%cr3\n"</span>
<a name="l00086"></a>00086 );
<a name="l00087"></a>00087 }
<a name="l00088"></a>00088 pageTableSrc = (<a class="code" href="types_8h.html#5847ea0262a5aa61eee48cbe95544a78">uInt32</a> *) (<a class="code" href="paging_8h.html#a432d41840ad8a583a7e6af86feece4f">tablesBaseAddress</a> + (0<a class="code" href="ap-boot_8S.html#f78b91f02427adef14bb8b28aa93baa5">x1000</a> * x));
<a name="l00089"></a>00089 <span class="keywordflow">if</span> (y != 0x0) {
<a name="l00090"></a>00090 <span class="keywordflow">for</span> (y = 0x0;y<<a class="code" href="paging_8h.html#b80d68a13753e40b0df8e0dc0c4af870">pageEntries</a>;y++) {
<a name="l00091"></a>00091 pageTableSrc[y] = (<a class="code" href="types_8h.html#5847ea0262a5aa61eee48cbe95544a78">uInt32</a>)0x0;
<a name="l00092"></a>00092 }
<a name="l00093"></a>00093 }
<a name="l00094"></a>00094 <span class="keywordflow">for</span> (y = 0; y < 1024; y++) {
<a name="l00095"></a>00095 <span class="comment">/* Loop Through The Page Table Find An UnAllocated Page */</span>
<a name="l00096"></a>00096 <span class="keywordflow">if</span> ((pageTableSrc[y] & <a class="code" href="paging_8h.html#57d743cb60fe478f6720c42315e7e813">PAGE_COW</a>) == PAGE_COW) {
<a name="l00097"></a>00097 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"PAGE_COW"</span>);
<a name="l00098"></a>00098 <span class="comment">//_current->td.vm_dsize += btoc(0x1000);</span>
<a name="l00099"></a>00099 <span class="comment">/* HACK MEMORY LEAK */</span>
<a name="l00100"></a>00100 <span class="comment">//pageTableSrc[y] = 0x0;</span>
<a name="l00101"></a>00101 }
<a name="l00102"></a>00102 <span class="keywordflow">if</span> ((<a class="code" href="types_8h.html#5847ea0262a5aa61eee48cbe95544a78">uInt32</a>) pageTableSrc[y] == (uInt32) 0x0) {
<a name="l00103"></a>00103 <span class="keywordflow">if</span> (count > 0<a class="code" href="ap-boot_8S.html#1a3ac2137e21f6f0d400f1996914dd19">x1</a>) {
<a name="l00104"></a>00104 <span class="keywordflow">for</span> (c = 0; c < count; c++) {
<a name="l00105"></a>00105 <span class="keywordflow">if</span> (y + c < 1024) {
<a name="l00106"></a>00106 <span class="keywordflow">if</span> ((pageTableSrc[y + c] & PAGE_COW) == PAGE_COW) {
<a name="l00107"></a>00107 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"PAGE-COW"</span>);
<a name="l00108"></a>00108 <span class="comment">//_current->td.vm_dsize += btoc(0x1000);</span>
<a name="l00109"></a>00109 <span class="comment">/* HACK MEMORY LEAK */</span>
<a name="l00110"></a>00110 <span class="comment">//pageTableSrc[y + c] = 0x0;</span>
<a name="l00111"></a>00111 }
<a name="l00112"></a>00112
<a name="l00113"></a>00113 <span class="keywordflow">if</span> ((uInt32) pageTableSrc[y + c] != (uInt32) 0x0) {
<a name="l00114"></a>00114 c = -1;
<a name="l00115"></a>00115 <span class="keywordflow">break</span>;
<a name="l00116"></a>00116 }
<a name="l00117"></a>00117 }
<a name="l00118"></a>00118 }
<a name="l00119"></a>00119 <span class="keywordflow">if</span> (c != -1) {
<a name="l00120"></a>00120 <span class="keywordflow">for</span> (c = 0; c < count; c++) {
<a name="l00121"></a>00121 <span class="keywordflow">if</span> ((<a class="code" href="paging_8h.html#a05f8d8947fb5bcec87fc6661f83243e">vmm_remapPage</a>((uInt32) <a class="code" href="vmm_8h.html#976cf3919bf7c77c868021ec9374593b">vmmFindFreePage</a>(pid), ((x * (1024 * 4096)) + ((y + c) * 4096)),<a class="code" href="paging_8h.html#f0fff7a38cd2c7a32d580787423b94ea">PAGE_DEFAULT</a>)) == 0x0)
<a name="l00122"></a>00122 <a class="code" href="kpanic_8h.html#db9a182aa071791a306163d50d653deb">kpanic</a>(<span class="stringliteral">"vmmRemapPage: getFreeVirtualPage-1: [0x%X]\n"</span>,((x * (1024 * 4096)) + ((y + c) * 4096)));
<a name="l00123"></a>00123 <a class="code" href="paging_8h.html#230a160ddb717c5a133e55aa42e9d324">vmmClearVirtualPage</a>((uInt32) ((x * (1024 * 4096)) + ((y + c) * 4096)));
<a name="l00124"></a>00124 }
<a name="l00125"></a>00125 <span class="keywordflow">if</span> (type == <a class="code" href="paging_8h.html#4ede4e8b3e149ef94678acdae7de0e18">VM_THRD</a>)
<a name="l00126"></a>00126 <a class="code" href="sched_8h.html#54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#481c2e7084fec272e616d3fb984036e2">td</a>.<a class="code" href="structthread.html#4ce0e0e5856efc85e111d2cb8748a0ee">vm_dsize</a> += <a class="code" href="paging_8h.html#0851ee42f36c8a00e9eafe739c8ffaaa">btoc</a>(count * 0<a class="code" href="ap-boot_8S.html#f78b91f02427adef14bb8b28aa93baa5">x1000</a>);
<a name="l00127"></a>00127 <a class="code" href="spinlock_8h.html#dd996cbbb3b9826dd9c8cf02b66a4c65">spinUnlock</a>(&<a class="code" href="getfreevirtualpage_8c.html#153dbb51837629ad18f14637d0357248">fvpSpinLock</a>);
<a name="l00128"></a>00128 <span class="keywordflow">return</span> ((<span class="keywordtype">void</span> *)((x * (1024 * 4096)) + (y * 4096)));
<a name="l00129"></a>00129 }
<a name="l00130"></a>00130 } <span class="keywordflow">else</span> {
<a name="l00131"></a>00131 <span class="comment">/* Map A Physical Page To The Virtual Page */</span>
<a name="l00132"></a>00132
<a name="l00133"></a>00133 <span class="comment">/*</span>
<a name="l00134"></a>00134 <span class="comment"> * remapPage((uInt32)vmmFindFreePage(pid),((x*(1024*4096))+(y*4096))</span>
<a name="l00135"></a>00135 <span class="comment"> * ,pid);</span>
<a name="l00136"></a>00136 <span class="comment"> */</span>
<a name="l00137"></a>00137 <span class="keywordflow">if</span> ((<a class="code" href="paging_8h.html#a05f8d8947fb5bcec87fc6661f83243e">vmm_remapPage</a>((uInt32) <a class="code" href="vmm_8h.html#976cf3919bf7c77c868021ec9374593b">vmmFindFreePage</a>(pid), ((x * (1024 * 4096)) + (y * 4096)),<a class="code" href="paging_8h.html#f0fff7a38cd2c7a32d580787423b94ea">PAGE_DEFAULT</a>)) == 0x0)
<a name="l00138"></a>00138 <a class="code" href="kpanic_8h.html#db9a182aa071791a306163d50d653deb">kpanic</a>(<span class="stringliteral">"vmmRemapPage: getFreeVirtualPage-2\n"</span>);
<a name="l00139"></a>00139
<a name="l00140"></a>00140 <span class="comment">/* Clear This Page So No Garbage Is There */</span>
<a name="l00141"></a>00141 <a class="code" href="paging_8h.html#230a160ddb717c5a133e55aa42e9d324">vmmClearVirtualPage</a>((uInt32) ((x * (1024 * 4096)) + (y * 4096)));
<a name="l00142"></a>00142
<a name="l00143"></a>00143 <span class="comment">/* Return The Address Of The Newly Allocate Page */</span>
<a name="l00144"></a>00144 <span class="keywordflow">if</span> (type == <a class="code" href="paging_8h.html#4ede4e8b3e149ef94678acdae7de0e18">VM_THRD</a>) {
<a name="l00145"></a>00145 <a class="code" href="sched_8h.html#54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#481c2e7084fec272e616d3fb984036e2">td</a>.<a class="code" href="structthread.html#4ce0e0e5856efc85e111d2cb8748a0ee">vm_dsize</a> += <a class="code" href="paging_8h.html#0851ee42f36c8a00e9eafe739c8ffaaa">btoc</a>(count * 0<a class="code" href="ap-boot_8S.html#f78b91f02427adef14bb8b28aa93baa5">x1000</a>);
<a name="l00146"></a>00146 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"vm_dsize: [0x%X]][0x%X]\n"</span>,<a class="code" href="paging_8h.html#071caea8a82a06e754daca63317d3c07">ctob</a>(<a class="code" href="sched_8h.html#54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#481c2e7084fec272e616d3fb984036e2">td</a>.<a class="code" href="structthread.html#4ce0e0e5856efc85e111d2cb8748a0ee">vm_dsize</a>),<a class="code" href="sched_8h.html#54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#481c2e7084fec272e616d3fb984036e2">td</a>.<a class="code" href="structthread.html#4ce0e0e5856efc85e111d2cb8748a0ee">vm_dsize</a>);
<a name="l00147"></a>00147 }
<a name="l00148"></a>00148 <span class="comment">//kprintf("(0x%X:0x%X)",_current->td.vm_dsize,vmm_getPhysicalAddr(((x * (1024 * 4096)) + (y * 4096))));</span>
<a name="l00149"></a>00149 <span class="comment">// kprintf("(0x%X:0x%X)",_current->td.vm_dsize + _current->td.vm_daddr,((x * (1024 * 4096)) + (y * 4096)));</span>
<a name="l00150"></a>00150 <a class="code" href="spinlock_8h.html#dd996cbbb3b9826dd9c8cf02b66a4c65">spinUnlock</a>(&<a class="code" href="getfreevirtualpage_8c.html#153dbb51837629ad18f14637d0357248">fvpSpinLock</a>);
<a name="l00151"></a>00151 <span class="keywordflow">return</span> ((<span class="keywordtype">void</span> *)((x * (1024 * 4096)) + (y * 4096)));
<a name="l00152"></a>00152 }
<a name="l00153"></a>00153 }
<a name="l00154"></a>00154 }
<a name="l00155"></a>00155 }
<a name="l00156"></a>00156 <span class="comment">/* If No Free Page Was Found Return NULL */</span>
<a name="l00157"></a>00157 <a class="code" href="spinlock_8h.html#dd996cbbb3b9826dd9c8cf02b66a4c65">spinUnlock</a>(&<a class="code" href="getfreevirtualpage_8c.html#153dbb51837629ad18f14637d0357248">fvpSpinLock</a>);
<a name="l00158"></a>00158 <span class="keywordflow">return</span> (0x0);
<a name="l00159"></a>00159 }
<a name="l00160"></a>00160
<a name="l00161"></a>00161 <span class="comment">/***</span>
<a name="l00162"></a>00162 <span class="comment"> END</span>
<a name="l00163"></a>00163 <span class="comment"> ***/</span>
<a name="l00164"></a>00164
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Fri Dec 15 11:18:55 2006 for UbixOS V2 by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.7 </small></address>
</body>
</html>
