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224 lines
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<div class="headertitle"><div class="title">mem_op.h</div></div>
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<a href="mem__op_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span></div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment">/*</span></div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> * (c) 2010 Author(s)</span></div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> * economic rights: Technische Universität Dresden (Germany)</span></div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> *</span></div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> * License: see LICENSE.spdx (in this directory or the directories above)</span></div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> */</span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#ifndef __L4SYS__INCLUDE__ARCH_ARM__MEM_OP_H__</span></div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#define __L4SYS__INCLUDE__ARCH_ARM__MEM_OP_H__</span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> </div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include <<a class="code" href="compiler_8h.html">l4/sys/compiler.h</a>></span></div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#include <<a class="code" href="syscall__defs_8h.html">l4/sys/syscall_defs.h</a>></span></div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> </div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><a class="code hl_define" href="group__l4sys__defines.html#ga5f022ce5422df9cc6ed415e2bfc90f59">L4_BEGIN_DECLS</a></div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span></div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span></div>
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<div class="foldopen" id="foldopen00040" data-start="{" data-end="};">
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"><a class="line" href="group__l4__mem__op__api.html#gad344c0069ed7d8177897f417edd9b044"> 40</a></span><span class="keyword">enum</span> <a class="code hl_enumeration" href="group__l4__mem__op__api.html#gad344c0069ed7d8177897f417edd9b044">L4_mem_op_widths</a></div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span>{</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"><a class="line" href="group__l4__mem__op__api.html#ggad344c0069ed7d8177897f417edd9b044aabc805bdc075283b34e8e442d4c5ee81"> 42</a></span> <a class="code hl_enumvalue" href="group__l4__mem__op__api.html#ggad344c0069ed7d8177897f417edd9b044aabc805bdc075283b34e8e442d4c5ee81">L4_MEM_WIDTH_1BYTE</a> = 0, </div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"><a class="line" href="group__l4__mem__op__api.html#ggad344c0069ed7d8177897f417edd9b044a6cf8020187c9b719c2cc69acf182f7e6"> 43</a></span> <a class="code hl_enumvalue" href="group__l4__mem__op__api.html#ggad344c0069ed7d8177897f417edd9b044a6cf8020187c9b719c2cc69acf182f7e6">L4_MEM_WIDTH_2BYTE</a> = 1, </div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"><a class="line" href="group__l4__mem__op__api.html#ggad344c0069ed7d8177897f417edd9b044a0e077a1a1f522ea7ce9776294d05c63c"> 44</a></span> <a class="code hl_enumvalue" href="group__l4__mem__op__api.html#ggad344c0069ed7d8177897f417edd9b044a0e077a1a1f522ea7ce9776294d05c63c">L4_MEM_WIDTH_4BYTE</a> = 2, </div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span>};</div>
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</div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span></div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span><a class="code hl_define" href="group__l4sys__defines.html#ga427377e23e3680dc178035d391b2ca45">L4_INLINE</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span></div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span><a class="code hl_function" href="group__l4__mem__op__api.html#ga9001138f728b03db6fd24e21310eb65c">l4_mem_read</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> virtaddress, <span class="keywordtype">unsigned</span> width);</div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span></div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span><a class="code hl_define" href="group__l4sys__defines.html#ga427377e23e3680dc178035d391b2ca45">L4_INLINE</a> <span class="keywordtype">void</span></div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span><a class="code hl_function" href="group__l4__mem__op__api.html#ga6c3f8f72dfbd7759d7a7a0b593f4ec6f">l4_mem_write</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> virtaddress, <span class="keywordtype">unsigned</span> width,</div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> value);</div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> </div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span><span class="keyword">enum</span> L4_mem_ops</div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span>{</div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> L4_MEM_OP_MEM_READ = 0x10,</div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> L4_MEM_OP_MEM_WRITE = 0x11,</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span>};</div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span></div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span><a class="code hl_define" href="group__l4sys__defines.html#ga427377e23e3680dc178035d391b2ca45">L4_INLINE</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span></div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span><a class="code hl_function" href="mem__op_8h.html#ae9743f19048c96229895f372ff0c14a7">l4_mem_arm_op_call</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> op,</div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> va,</div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> width,</div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> value);</div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span></div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> </div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span><a class="code hl_define" href="group__l4sys__defines.html#ga427377e23e3680dc178035d391b2ca45">L4_INLINE</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span></div>
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<div class="foldopen" id="foldopen00096" data-start="{" data-end="}">
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"><a class="line" href="mem__op_8h.html#ae9743f19048c96229895f372ff0c14a7"> 96</a></span><a class="code hl_function" href="mem__op_8h.html#ae9743f19048c96229895f372ff0c14a7">l4_mem_arm_op_call</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> op,</div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> va,</div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> width,</div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> value)</div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span>{</div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <span class="keyword">register</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> _op __asm__ (<span class="stringliteral">"r0"</span>) = op;</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="keyword">register</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> _va __asm__ (<span class="stringliteral">"r1"</span>) = va;</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="keyword">register</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> _width __asm__ (<span class="stringliteral">"r2"</span>) = width;</div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="keyword">register</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> _value __asm__ (<span class="stringliteral">"r3"</span>) = value;</div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> </div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> __asm__ __volatile__</div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> (<span class="stringliteral">"@ l4_cache_op_arm_call(start) \n\t"</span></div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="stringliteral">"mov r5, %[sc] \n\t"</span></div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <span class="stringliteral">"blx __l4_sys_syscall \n\t"</span></div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="stringliteral">"@ l4_cache_op_arm_call(end) \n\t"</span></div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> :</div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="stringliteral">"=r"</span> (_op),</div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <span class="stringliteral">"=r"</span> (_va),</div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="stringliteral">"=r"</span> (_width),</div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <span class="stringliteral">"=r"</span> (_value)</div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> :</div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> [sc] <span class="stringliteral">"i"</span> (L4_SYSCALL_MEM_OP),</div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> <span class="stringliteral">"0"</span> (_op),</div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="stringliteral">"1"</span> (_va),</div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <span class="stringliteral">"2"</span> (_width),</div>
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<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> <span class="stringliteral">"3"</span> (_value)</div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> :</div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="stringliteral">"cc"</span>, <span class="stringliteral">"memory"</span>, <span class="stringliteral">"r5"</span>, <span class="stringliteral">"ip"</span>, <span class="stringliteral">"lr"</span></div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> );</div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> </div>
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<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="keywordflow">return</span> _value;</div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span>}</div>
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</div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> </div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span><a class="code hl_define" href="group__l4sys__defines.html#ga427377e23e3680dc178035d391b2ca45">L4_INLINE</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span></div>
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<div class="foldopen" id="foldopen00130" data-start="{" data-end="}">
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"><a class="line" href="group__l4__mem__op__api.html#ga9001138f728b03db6fd24e21310eb65c"> 130</a></span><a class="code hl_function" href="group__l4__mem__op__api.html#ga9001138f728b03db6fd24e21310eb65c">l4_mem_read</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> virtaddress, <span class="keywordtype">unsigned</span> width)</div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span>{</div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="keywordflow">return</span> <a class="code hl_function" href="mem__op_8h.html#ae9743f19048c96229895f372ff0c14a7">l4_mem_arm_op_call</a>(L4_MEM_OP_MEM_READ, virtaddress, width, 0);</div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span>}</div>
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</div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> </div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span><a class="code hl_define" href="group__l4sys__defines.html#ga427377e23e3680dc178035d391b2ca45">L4_INLINE</a> <span class="keywordtype">void</span></div>
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<div class="foldopen" id="foldopen00136" data-start="{" data-end="}">
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"><a class="line" href="group__l4__mem__op__api.html#ga6c3f8f72dfbd7759d7a7a0b593f4ec6f"> 136</a></span><a class="code hl_function" href="group__l4__mem__op__api.html#ga6c3f8f72dfbd7759d7a7a0b593f4ec6f">l4_mem_write</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> virtaddress, <span class="keywordtype">unsigned</span> width,</div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> value)</div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span>{</div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <a class="code hl_function" href="mem__op_8h.html#ae9743f19048c96229895f372ff0c14a7">l4_mem_arm_op_call</a>(L4_MEM_OP_MEM_WRITE, virtaddress, width, value);</div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span>}</div>
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</div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> </div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span><a class="code hl_define" href="group__l4sys__defines.html#ga7b3d88f2118cbb7b8057a860dbdd0381">L4_END_DECLS</a></div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> </div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span><span class="preprocessor">#endif </span><span class="comment">/* ! __L4SYS__INCLUDE__ARCH_ARM__MEM_OP_H__ */</span><span class="preprocessor"></span></div>
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<div class="ttc" id="acompiler_8h_html"><div class="ttname"><a href="compiler_8h.html">compiler.h</a></div><div class="ttdoc">L4 compiler related defines.</div></div>
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<div class="ttc" id="agroup__l4__mem__op__api_html_ga6c3f8f72dfbd7759d7a7a0b593f4ec6f"><div class="ttname"><a href="group__l4__mem__op__api.html#ga6c3f8f72dfbd7759d7a7a0b593f4ec6f">l4_mem_write</a></div><div class="ttdeci">void l4_mem_write(unsigned long virtaddress, unsigned width, unsigned long value)</div><div class="ttdoc">Write user task memory from kernel privilege level.</div><div class="ttdef"><b>Definition</b> <a href="#l00136">mem_op.h:136</a></div></div>
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<div class="ttc" id="agroup__l4__mem__op__api_html_ga9001138f728b03db6fd24e21310eb65c"><div class="ttname"><a href="group__l4__mem__op__api.html#ga9001138f728b03db6fd24e21310eb65c">l4_mem_read</a></div><div class="ttdeci">unsigned long l4_mem_read(unsigned long virtaddress, unsigned width)</div><div class="ttdoc">Read user task memory from kernel privilege level.</div><div class="ttdef"><b>Definition</b> <a href="#l00130">mem_op.h:130</a></div></div>
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<div class="ttc" id="agroup__l4__mem__op__api_html_gad344c0069ed7d8177897f417edd9b044"><div class="ttname"><a href="group__l4__mem__op__api.html#gad344c0069ed7d8177897f417edd9b044">L4_mem_op_widths</a></div><div class="ttdeci">L4_mem_op_widths</div><div class="ttdoc">Memory access width definitions.</div><div class="ttdef"><b>Definition</b> <a href="#l00040">mem_op.h:41</a></div></div>
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<div class="ttc" id="agroup__l4__mem__op__api_html_ggad344c0069ed7d8177897f417edd9b044a0e077a1a1f522ea7ce9776294d05c63c"><div class="ttname"><a href="group__l4__mem__op__api.html#ggad344c0069ed7d8177897f417edd9b044a0e077a1a1f522ea7ce9776294d05c63c">L4_MEM_WIDTH_4BYTE</a></div><div class="ttdeci">@ L4_MEM_WIDTH_4BYTE</div><div class="ttdoc">Access four bytes (32-bit width).</div><div class="ttdef"><b>Definition</b> <a href="#l00044">mem_op.h:44</a></div></div>
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<div class="ttc" id="agroup__l4__mem__op__api_html_ggad344c0069ed7d8177897f417edd9b044a6cf8020187c9b719c2cc69acf182f7e6"><div class="ttname"><a href="group__l4__mem__op__api.html#ggad344c0069ed7d8177897f417edd9b044a6cf8020187c9b719c2cc69acf182f7e6">L4_MEM_WIDTH_2BYTE</a></div><div class="ttdeci">@ L4_MEM_WIDTH_2BYTE</div><div class="ttdoc">Access two bytes (16-bit width).</div><div class="ttdef"><b>Definition</b> <a href="#l00043">mem_op.h:43</a></div></div>
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<div class="ttc" id="agroup__l4__mem__op__api_html_ggad344c0069ed7d8177897f417edd9b044aabc805bdc075283b34e8e442d4c5ee81"><div class="ttname"><a href="group__l4__mem__op__api.html#ggad344c0069ed7d8177897f417edd9b044aabc805bdc075283b34e8e442d4c5ee81">L4_MEM_WIDTH_1BYTE</a></div><div class="ttdeci">@ L4_MEM_WIDTH_1BYTE</div><div class="ttdoc">Access one byte (8-bit width).</div><div class="ttdef"><b>Definition</b> <a href="#l00042">mem_op.h:42</a></div></div>
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<div class="ttc" id="agroup__l4sys__defines_html_ga427377e23e3680dc178035d391b2ca45"><div class="ttname"><a href="group__l4sys__defines.html#ga427377e23e3680dc178035d391b2ca45">L4_INLINE</a></div><div class="ttdeci">#define L4_INLINE</div><div class="ttdoc">L4 Inline function attribute.</div><div class="ttdef"><b>Definition</b> <a href="compiler_8h_source.html#l00051">compiler.h:51</a></div></div>
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<div class="ttc" id="agroup__l4sys__defines_html_ga5f022ce5422df9cc6ed415e2bfc90f59"><div class="ttname"><a href="group__l4sys__defines.html#ga5f022ce5422df9cc6ed415e2bfc90f59">L4_BEGIN_DECLS</a></div><div class="ttdeci">#define L4_BEGIN_DECLS</div><div class="ttdoc">Start section with C types and functions.</div><div class="ttdef"><b>Definition</b> <a href="compiler_8h_source.html#l00165">compiler.h:165</a></div></div>
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<div class="ttc" id="agroup__l4sys__defines_html_ga7b3d88f2118cbb7b8057a860dbdd0381"><div class="ttname"><a href="group__l4sys__defines.html#ga7b3d88f2118cbb7b8057a860dbdd0381">L4_END_DECLS</a></div><div class="ttdeci">#define L4_END_DECLS</div><div class="ttdoc">End section with C types and functions.</div><div class="ttdef"><b>Definition</b> <a href="compiler_8h_source.html#l00166">compiler.h:166</a></div></div>
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<div class="ttc" id="amem__op_8h_html_ae9743f19048c96229895f372ff0c14a7"><div class="ttname"><a href="mem__op_8h.html#ae9743f19048c96229895f372ff0c14a7">l4_mem_arm_op_call</a></div><div class="ttdeci">unsigned long l4_mem_arm_op_call(unsigned long op, unsigned long va, unsigned long width, unsigned long value)</div><div class="ttdoc">Implementations.</div><div class="ttdef"><b>Definition</b> <a href="#l00096">mem_op.h:96</a></div></div>
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<div class="ttc" id="asyscall__defs_8h_html"><div class="ttname"><a href="syscall__defs_8h.html">syscall_defs.h</a></div><div class="ttdoc">Syscall entry definitions.</div></div>
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<li class="navelem"><b>arm</b></li><li class="navelem"><b>l4</b></li><li class="navelem"><b>sys</b></li><li class="navelem"><a href="mem__op_8h.html">mem_op.h</a></li>
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