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<div class="title">getfreevirtualpage.c</div> </div>
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<div class="contents">
<a href="getfreevirtualpage_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>  <span class="comment">/*-</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) 2002-2018 The UbixOS Project.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * All rights reserved.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * This was developed by Christopher W. Olsen for the UbixOS Project.</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * Redistribution and use in source and binary forms, with or without modification, are permitted</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * provided that the following conditions are met:</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * 1) Redistributions of source code must retain the above copyright notice, this list of</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * conditions, the following disclaimer and the list of authors.</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * 2) Redistributions in binary form must reproduce the above copyright notice, this list of</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * conditions, the following disclaimer and the list of authors in the documentation and/or</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * other materials provided with the distribution.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * 3) Neither the name of the UbixOS Project nor the names of its contributors may be used to</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * endorse or promote products derived from this software without specific prior written</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * permission.</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  </div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <<a class="code" href="vmm_8h.html">vmm/vmm.h</a>></span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <<a class="code" href="sched_8h.html">ubixos/sched.h</a>></span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <<a class="code" href="kpanic_8h.html">ubixos/kpanic.h</a>></span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <<a class="code" href="spinlock_8h.html">ubixos/spinlock.h</a>></span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include <<a class="code" href="kprintf_8h.html">lib/kprintf.h</a>></span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  </div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structspinLock.html">spinLock</a> fvpSpinLock = <a class="code" href="spinlock_8h.html#a0fe85a4f3642683148b25916d6c5eafd">SPIN_LOCK_INITIALIZER</a>;</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  </div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment">/************************************************************************</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"></span> </div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> Function: void *vmm_getFreeVirtualPage(pidType pid,int count);</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> Description: Returns A Free Page Mapped To The VM Space</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> Notes:</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"></span> </div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"> 2016-01-21 MrOlsen - I'm not 100% happy with this, i know I can make the calculations much faster</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"></span> </div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> 08/11/02 - This Will Return Next Avilable Free Page Of Tasks VM Space</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"></span> </div>
<div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="getfreevirtualpage_8c.html#a53d26f1c6ecf9d6242ab538b5f55e31b"> 47</a></span> <span class="comment"> ************************************************************************/</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="keywordtype">void</span> *<a class="code" href="getfreevirtualpage_8c.html#a53d26f1c6ecf9d6242ab538b5f55e31b">vmm_getFreeVirtualPage</a>(<a class="code" href="include_2sys_2types_8h.html#ae438ba74394b14d7b24b6df3b3b8c252">pidType</a> pid, <span class="keywordtype">int</span> count, <span class="keywordtype">int</span> type) {</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordtype">int</span> y = 0, counter = 0, pdI = 0x0, ptI = 0x0;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  </div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *pageDirectory = 0x0;</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *pageTable = 0x0;</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  </div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> start_page = 0x0;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> map_from = 0x0;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  </div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <a class="code" href="armv6_2spinlock_8c.html#a71f03d2ba55111c715b6068254847a53">spinLock</a>(&fvpSpinLock);</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  </div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  pageDirectory = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) <a class="code" href="paging_8h.html#a1b0f37794d3da1a86f1df77e503ed98f">PD_BASE_ADDR</a>;</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  </div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="comment">/* Lets Search For A Free Page */</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">if</span> (<a class="code" href="armv6_2sched_8c.html#a54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#a0933c70230d4ac8bc9953640c979f8d7">oInfo</a>.<a class="code" href="structosInfo.html#a2833c1fa4a221941b5d1141dfa5beefd">vmStart</a> <= 0x100000)</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <a class="code" href="armv6_2kpanic_8c.html#adb9a182aa071791a306163d50d653deb">kpanic</a>(<span class="stringliteral">"Invalid vmStart\n"</span>);</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  </div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="comment">/* Get Our Starting Address */</span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">if</span> (type == <a class="code" href="paging_8h.html#a4ede4e8b3e149ef94678acdae7de0e18">VM_THRD</a>) {</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  start_page = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) (<a class="code" href="armv6_2sched_8c.html#a54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#a481c2e7084fec272e616d3fb984036e2">td</a>.<a class="code" href="structthread.html#ae4165d082b98f27dab6bfeeefb76e060">vm_daddr</a> + <a class="code" href="paging_8h.html#a071caea8a82a06e754daca63317d3c07">ctob</a>(<a class="code" href="armv6_2sched_8c.html#a54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#a481c2e7084fec272e616d3fb984036e2">td</a>.<a class="code" href="structthread.html#ac5ce95b5be4422e5f5a61f081547d425">vm_dsize</a>));</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  }</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (type == <a class="code" href="paging_8h.html#a59a518704bf2f0b56603476bcb1eebbf">VM_TASK</a>) {</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  start_page = <a class="code" href="armv6_2sched_8c.html#a54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#a0933c70230d4ac8bc9953640c979f8d7">oInfo</a>.<a class="code" href="structosInfo.html#a2833c1fa4a221941b5d1141dfa5beefd">vmStart</a>;</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  }</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <a class="code" href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"Invalid Type"</span>);</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  </div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  </div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="comment">/* Locate Initial Page Table */</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  keepMapping:</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  pdI = <a class="code" href="paging_8h.html#ac96f9536624cb5d2e7634f37fa919c4c">PD_INDEX</a>(start_page);</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  </div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">if</span> (pdI > <a class="code" href="paging_8h.html#ac96f9536624cb5d2e7634f37fa919c4c">PD_INDEX</a>(<a class="code" href="vmm_8h.html#a71bd5e4901787995ae8f9cc3e1a888f9">VMM_USER_END</a>)) {</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  map_from = 0x0;</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">goto</span> doneMapping;</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  }</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  </div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="comment">/* If Page Directory Is Not Yet Allocated Allocate It */</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">if</span> ((pageDirectory[pdI] & <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) != <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) {</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <a class="code" href="vmm_8h.html#acba8d9cc298370338bc5bea5187183b2">vmm_allocPageTable</a>(pdI, pid);</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  }</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  </div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  pageTable = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) (<a class="code" href="paging_8h.html#a8d42a9a09d9dea53cab3044f51482acc">PT_BASE_ADDR</a> + (pdI * <a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a>));</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  </div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  ptI = <a class="code" href="paging_8h.html#a2c6e29890bb0209384b6d012db48e2f7">PT_INDEX</a>(start_page);</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  </div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">for</span> (y = ptI; y < <a class="code" href="paging_8h.html#adc9776583e54abf06ae7b99f1f3036a6">PT_ENTRIES</a> && counter < count; y++, counter++) {</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  </div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="comment">/* Loop Through The Page Table Find An UnAllocated Page */</span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">if</span> ((pageTable[y] & <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) == <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) {</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordflow">if</span> ((pageTable[y] & <a class="code" href="paging_8h.html#a57d743cb60fe478f6720c42315e7e813">PAGE_COW</a>) == <a class="code" href="paging_8h.html#a57d743cb60fe478f6720c42315e7e813">PAGE_COW</a>)</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <a class="code" href="kprintf_8h.html#a20b56810edb62a6fe59917015c30848f">kprintf</a>(<span class="stringliteral">"COW PAGE NOT CLEANED!"</span>);</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  </div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  start_page += (<a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a> * counter);</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  map_from = 0x0;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  counter = 0;</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">goto</span> keepMapping;</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  }</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  </div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">if</span> (map_from == 0x0)</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  map_from = start_page;</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  }</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  </div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">if</span> (counter < count) {</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  start_page += (<a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a> * counter);</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordflow">goto</span> keepMapping;</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  }</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  </div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  gotPages:</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">if</span> (type == <a class="code" href="paging_8h.html#a4ede4e8b3e149ef94678acdae7de0e18">VM_THRD</a>)</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <a class="code" href="armv6_2sched_8c.html#a54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#a481c2e7084fec272e616d3fb984036e2">td</a>.<a class="code" href="structthread.html#ac5ce95b5be4422e5f5a61f081547d425">vm_dsize</a> += <a class="code" href="paging_8h.html#a0851ee42f36c8a00e9eafe739c8ffaaa">btoc</a>(count * <a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a>);</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (type == <a class="code" href="paging_8h.html#a59a518704bf2f0b56603476bcb1eebbf">VM_TASK</a>)</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <a class="code" href="armv6_2sched_8c.html#a54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#a0933c70230d4ac8bc9953640c979f8d7">oInfo</a>.<a class="code" href="structosInfo.html#a2833c1fa4a221941b5d1141dfa5beefd">vmStart</a> = map_from + (count * <a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a>);</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  </div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="comment">//_current->oInfo.vmStart += (count * PAGE_SIZE);</span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  </div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">for</span> (counter = 0; counter < count; counter++) {</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">if</span> ((<a class="code" href="paging_8h.html#adea68f248df43bddee62a09d945304b0">vmm_remapPage</a>((<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) <a class="code" href="vmm_8h.html#ab8e4e189a7b1df2a03072ce5b75c89fe">vmm_findFreePage</a>(pid), (map_from + (counter * <a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a>)), <a class="code" href="paging_8h.html#af0fff7a38cd2c7a32d580787423b94ea">PAGE_DEFAULT</a>, pid, 0)) == 0x0)</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <a class="code" href="armv6_2kpanic_8c.html#adb9a182aa071791a306163d50d653deb">kpanic</a>(<span class="stringliteral">"vmmRemapPage: getFreeVirtualPage-1: (%i)[0x%X]\n"</span>, type, map_from + (counter * <a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a>));</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  </div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <a class="code" href="gpt_8h.html#a310ac455ac45de9713bd7dcb0b5500ad">bzero</a>((map_from + (counter * <a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a>)), <a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a>);</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  }</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  </div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  doneMapping:</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <a class="code" href="armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a>(&fvpSpinLock);</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordflow">return</span> (map_from);</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> }</div>
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<div class="ttc" id="aspinlock_8h_html"><div class="ttname"><a href="spinlock_8h.html">spinlock.h</a></div></div>
<div class="ttc" id="apaging_8h_html_a4ede4e8b3e149ef94678acdae7de0e18"><div class="ttname"><a href="paging_8h.html#a4ede4e8b3e149ef94678acdae7de0e18">VM_THRD</a></div><div class="ttdeci">#define VM_THRD</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00051">paging.h:51</a></div></div>
<div class="ttc" id="apaging_8h_html_a57d743cb60fe478f6720c42315e7e813"><div class="ttname"><a href="paging_8h.html#a57d743cb60fe478f6720c42315e7e813">PAGE_COW</a></div><div class="ttdeci">#define PAGE_COW</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00064">paging.h:64</a></div></div>
<div class="ttc" id="akpanic_8h_html_aa5193288597f00c4f8e3b2939aa6c0ce"><div class="ttname"><a href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a></div><div class="ttdeci">#define K_PANIC(msg)</div><div class="ttdef"><b>Definition:</b> <a href="kpanic_8h_source.html#l00032">kpanic.h:32</a></div></div>
<div class="ttc" id="apaging_8h_html_a071caea8a82a06e754daca63317d3c07"><div class="ttname"><a href="paging_8h.html#a071caea8a82a06e754daca63317d3c07">ctob</a></div><div class="ttdeci">#define ctob(x)</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00074">paging.h:74</a></div></div>
<div class="ttc" id="aarmv6_2spinlock_8c_html_ae29ab191c93f9ead066cb462dd2e7247"><div class="ttname"><a href="armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a></div><div class="ttdeci">void spinUnlock(spinLock_t *lock)</div><div class="ttdef"><b>Definition:</b> <a href="armv6_2spinlock_8c_source.html#l00036">spinlock.c:36</a></div></div>
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<div class="ttc" id="agpt_8h_html_a310ac455ac45de9713bd7dcb0b5500ad"><div class="ttname"><a href="gpt_8h.html#a310ac455ac45de9713bd7dcb0b5500ad">bzero</a></div><div class="ttdeci">#define bzero(buf, size)</div><div class="ttdef"><b>Definition:</b> <a href="gpt_8h_source.html#l00037">gpt.h:37</a></div></div>
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<div class="ttc" id="astructtaskStruct_html_a481c2e7084fec272e616d3fb984036e2"><div class="ttname"><a href="structtaskStruct.html#a481c2e7084fec272e616d3fb984036e2">taskStruct::td</a></div><div class="ttdeci">struct thread td</div><div class="ttdef"><b>Definition:</b> <a href="sched_8h_source.html#l00078">sched.h:78</a></div></div>
<div class="ttc" id="astructosInfo_html_a2833c1fa4a221941b5d1141dfa5beefd"><div class="ttname"><a href="structosInfo.html#a2833c1fa4a221941b5d1141dfa5beefd">osInfo::vmStart</a></div><div class="ttdeci">uInt32 vmStart</div><div class="ttdef"><b>Definition:</b> <a href="sched_8h_source.html#l00054">sched.h:54</a></div></div>
<div class="ttc" id="aarmv6_2spinlock_8c_html_a71f03d2ba55111c715b6068254847a53"><div class="ttname"><a href="armv6_2spinlock_8c.html#a71f03d2ba55111c715b6068254847a53">spinLock</a></div><div class="ttdeci">void spinLock(spinLock_t *lock)</div><div class="ttdef"><b>Definition:</b> <a href="armv6_2spinlock_8c_source.html#l00055">spinlock.c:55</a></div></div>
<div class="ttc" id="apaging_8h_html_a59a518704bf2f0b56603476bcb1eebbf"><div class="ttname"><a href="paging_8h.html#a59a518704bf2f0b56603476bcb1eebbf">VM_TASK</a></div><div class="ttdeci">#define VM_TASK</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00052">paging.h:52</a></div></div>
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<div class="ttc" id="avmm_8h_html_ab8e4e189a7b1df2a03072ce5b75c89fe"><div class="ttname"><a href="vmm_8h.html#ab8e4e189a7b1df2a03072ce5b75c89fe">vmm_findFreePage</a></div><div class="ttdeci">uint32_t vmm_findFreePage(pidType pid)</div><div class="ttdef"><b>Definition:</b> <a href="vmm__memory_8c_source.html#l00221">vmm_memory.c:221</a></div></div>
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<div class="ttc" id="akprintf_8h_html"><div class="ttname"><a href="kprintf_8h.html">kprintf.h</a></div></div>
<div class="ttc" id="apaging_8h_html_ac96f9536624cb5d2e7634f37fa919c4c"><div class="ttname"><a href="paging_8h.html#ac96f9536624cb5d2e7634f37fa919c4c">PD_INDEX</a></div><div class="ttdeci">#define PD_INDEX(v_addr)</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00040">paging.h:40</a></div></div>
<div class="ttc" id="apaging_8h_html_af0fff7a38cd2c7a32d580787423b94ea"><div class="ttname"><a href="paging_8h.html#af0fff7a38cd2c7a32d580787423b94ea">PAGE_DEFAULT</a></div><div class="ttdeci">#define PAGE_DEFAULT</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00068">paging.h:68</a></div></div>
<div class="ttc" id="apaging_8h_html_adea68f248df43bddee62a09d945304b0"><div class="ttname"><a href="paging_8h.html#adea68f248df43bddee62a09d945304b0">vmm_remapPage</a></div><div class="ttdeci">int vmm_remapPage(uint32_t, uint32_t, uint16_t, pidType, int haveLock)</div><div class="ttdef"><b>Definition:</b> <a href="paging_8c_source.html#l00199">paging.c:199</a></div></div>
<div class="ttc" id="apaging_8h_html_a1b0f37794d3da1a86f1df77e503ed98f"><div class="ttname"><a href="paging_8h.html#a1b0f37794d3da1a86f1df77e503ed98f">PD_BASE_ADDR</a></div><div class="ttdeci">#define PD_BASE_ADDR</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00045">paging.h:45</a></div></div>
<div class="ttc" id="ainclude_2sys_2types_8h_html_a0238af00180b6d9278fa1c6aa790fdf4"><div class="ttname"><a href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a></div><div class="ttdeci">__uint32_t uint32_t</div><div class="ttdef"><b>Definition:</b> <a href="include_2sys_2types_8h_source.html#l00046">types.h:46</a></div></div>
<div class="ttc" id="astructthread_html_ac5ce95b5be4422e5f5a61f081547d425"><div class="ttname"><a href="structthread.html#ac5ce95b5be4422e5f5a61f081547d425">thread::vm_dsize</a></div><div class="ttdeci">u_long vm_dsize</div><div class="ttdef"><b>Definition:</b> <a href="thread_8h_source.html#l00044">thread.h:44</a></div></div>
<div class="ttc" id="aarmv6_2sched_8c_html_a54397bfe18d5da4d50ff03b15f540858"><div class="ttname"><a href="armv6_2sched_8c.html#a54397bfe18d5da4d50ff03b15f540858">_current</a></div><div class="ttdeci">kTask_t * _current</div><div class="ttdef"><b>Definition:</b> <a href="armv6_2sched_8c_source.html#l00050">sched.c:50</a></div></div>
<div class="ttc" id="apaging_8h_html_a2c6e29890bb0209384b6d012db48e2f7"><div class="ttname"><a href="paging_8h.html#a2c6e29890bb0209384b6d012db48e2f7">PT_INDEX</a></div><div class="ttdeci">#define PT_INDEX(v_addr)</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00042">paging.h:42</a></div></div>
<div class="ttc" id="ainclude_2sys_2types_8h_html_ae438ba74394b14d7b24b6df3b3b8c252"><div class="ttname"><a href="include_2sys_2types_8h.html#ae438ba74394b14d7b24b6df3b3b8c252">pidType</a></div><div class="ttdeci">int pidType</div><div class="ttdef"><b>Definition:</b> <a href="include_2sys_2types_8h_source.html#l00075">types.h:75</a></div></div>
<div class="ttc" id="astructthread_html_ae4165d082b98f27dab6bfeeefb76e060"><div class="ttname"><a href="structthread.html#ae4165d082b98f27dab6bfeeefb76e060">thread::vm_daddr</a></div><div class="ttdeci">u_long vm_daddr</div><div class="ttdef"><b>Definition:</b> <a href="thread_8h_source.html#l00043">thread.h:43</a></div></div>
<div class="ttc" id="agetfreevirtualpage_8c_html_a53d26f1c6ecf9d6242ab538b5f55e31b"><div class="ttname"><a href="getfreevirtualpage_8c.html#a53d26f1c6ecf9d6242ab538b5f55e31b">vmm_getFreeVirtualPage</a></div><div class="ttdeci">void * vmm_getFreeVirtualPage(pidType pid, int count, int type)</div><div class="ttdef"><b>Definition:</b> <a href="getfreevirtualpage_8c_source.html#l00047">getfreevirtualpage.c:47</a></div></div>
<div class="ttc" id="astructspinLock_html"><div class="ttname"><a href="structspinLock.html">spinLock</a></div><div class="ttdef"><b>Definition:</b> <a href="spinlock_8h_source.html#l00041">spinlock.h:41</a></div></div>
<div class="ttc" id="apaging_8h_html_a7d467c1d283fdfa1f2081ba1e0d01b6e"><div class="ttname"><a href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a></div><div class="ttdeci">#define PAGE_SIZE</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00037">paging.h:37</a></div></div>
<div class="ttc" id="akprintf_8h_html_a20b56810edb62a6fe59917015c30848f"><div class="ttname"><a href="kprintf_8h.html#a20b56810edb62a6fe59917015c30848f">kprintf</a></div><div class="ttdeci">int kprintf(const char *,...)</div><div class="ttdef"><b>Definition:</b> <a href="kprintf_8c_source.html#l00259">kprintf.c:259</a></div></div>
<div class="ttc" id="avmm_8h_html_a71bd5e4901787995ae8f9cc3e1a888f9"><div class="ttname"><a href="vmm_8h.html#a71bd5e4901787995ae8f9cc3e1a888f9">VMM_USER_END</a></div><div class="ttdeci">#define VMM_USER_END</div><div class="ttdef"><b>Definition:</b> <a href="vmm_8h_source.html#l00059">vmm.h:59</a></div></div>
<div class="ttc" id="apaging_8h_html_a8d42a9a09d9dea53cab3044f51482acc"><div class="ttname"><a href="paging_8h.html#a8d42a9a09d9dea53cab3044f51482acc">PT_BASE_ADDR</a></div><div class="ttdeci">#define PT_BASE_ADDR</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00046">paging.h:46</a></div></div>
<div class="ttc" id="apaging_8h_html_a122dfc414a40e260fd35dbe9743db26f"><div class="ttname"><a href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a></div><div class="ttdeci">#define PAGE_PRESENT</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00055">paging.h:55</a></div></div>
<div class="ttc" id="astructtaskStruct_html_a0933c70230d4ac8bc9953640c979f8d7"><div class="ttname"><a href="structtaskStruct.html#a0933c70230d4ac8bc9953640c979f8d7">taskStruct::oInfo</a></div><div class="ttdeci">struct osInfo oInfo</div><div class="ttdef"><b>Definition:</b> <a href="sched_8h_source.html#l00069">sched.h:69</a></div></div>
<div class="ttc" id="avmm_8h_html_acba8d9cc298370338bc5bea5187183b2"><div class="ttname"><a href="vmm_8h.html#acba8d9cc298370338bc5bea5187183b2">vmm_allocPageTable</a></div><div class="ttdeci">int vmm_allocPageTable(uint32_t, pidType)</div><div class="ttdef"><b>Definition:</b> <a href="vmm__allocpagetable_8c_source.html#l00007">vmm_allocpagetable.c:7</a></div></div>
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