begriffs open source - cmsis/blob - main/Core/group__Dcache__functions__m7.html

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  43    <div id="projectname">CMSIS-Core (Cortex-M)
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  52    <div id="projectbrief">CMSIS-Core support for Cortex-M processor-based devices</div>
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 125
 126 <div class="header">
 127   <div class="summary">
 128 <a href="#func-members">Functions</a>  </div>
 129   <div class="headertitle"><div class="title">D-Cache Functions<div class="ingroups"><a class="el" href="group__cache__functions__m7.html">Cache Functions (Level-1)</a></div></div></div>
 130 </div><!--header-->
 131 <div class="contents">
 132
 133 <p>Functions for the level-1 data cache.
 134 <a href="#details">More...</a></p>
 135 <table class="memberdecls">
 136 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
 137 Functions</h2></td></tr>
 138 <tr class="memitem:ga3861db932100ccb53f994e2cc68ed79c"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Dcache__functions__m7.html#ga3861db932100ccb53f994e2cc68ed79c">SCB_EnableDCache</a> (void)</td></tr>
 139 <tr class="memdesc:ga3861db932100ccb53f994e2cc68ed79c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Enable D-Cache.  <br /></td></tr>
 140 <tr class="separator:ga3861db932100ccb53f994e2cc68ed79c"><td class="memSeparator" colspan="2">&#160;</td></tr>
 141 <tr class="memitem:gafe64b44d1a61483a947e44a77a9d3287"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Dcache__functions__m7.html#gafe64b44d1a61483a947e44a77a9d3287">SCB_DisableDCache</a> (void)</td></tr>
 142 <tr class="memdesc:gafe64b44d1a61483a947e44a77a9d3287"><td class="mdescLeft">&#160;</td><td class="mdescRight">Disable D-Cache.  <br /></td></tr>
 143 <tr class="separator:gafe64b44d1a61483a947e44a77a9d3287"><td class="memSeparator" colspan="2">&#160;</td></tr>
 144 <tr class="memitem:ga99fe43c224644881935de135ceaa2dd9"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Dcache__functions__m7.html#ga99fe43c224644881935de135ceaa2dd9">SCB_InvalidateDCache</a> (void)</td></tr>
 145 <tr class="memdesc:ga99fe43c224644881935de135ceaa2dd9"><td class="mdescLeft">&#160;</td><td class="mdescRight">Invalidate D-Cache.  <br /></td></tr>
 146 <tr class="separator:ga99fe43c224644881935de135ceaa2dd9"><td class="memSeparator" colspan="2">&#160;</td></tr>
 147 <tr class="memitem:gaf5585be5547cc60585d702a6129f4c17"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Dcache__functions__m7.html#gaf5585be5547cc60585d702a6129f4c17">SCB_CleanDCache</a> (void)</td></tr>
 148 <tr class="memdesc:gaf5585be5547cc60585d702a6129f4c17"><td class="mdescLeft">&#160;</td><td class="mdescRight">Clean D-Cache.  <br /></td></tr>
 149 <tr class="separator:gaf5585be5547cc60585d702a6129f4c17"><td class="memSeparator" colspan="2">&#160;</td></tr>
 150 <tr class="memitem:ga5b22ca58709fadc326da83197a2f28bb"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Dcache__functions__m7.html#ga5b22ca58709fadc326da83197a2f28bb">SCB_CleanInvalidateDCache</a> (void)</td></tr>
 151 <tr class="memdesc:ga5b22ca58709fadc326da83197a2f28bb"><td class="mdescLeft">&#160;</td><td class="mdescRight">Clean &amp; Invalidate D-Cache.  <br /></td></tr>
 152 <tr class="separator:ga5b22ca58709fadc326da83197a2f28bb"><td class="memSeparator" colspan="2">&#160;</td></tr>
 153 <tr class="memitem:ga31c2439722ab4dbd0c67b196e3377ca7"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Dcache__functions__m7.html#ga31c2439722ab4dbd0c67b196e3377ca7">SCB_InvalidateDCache_by_Addr</a> (volatile void *addr, int32_t dsize)</td></tr>
 154 <tr class="memdesc:ga31c2439722ab4dbd0c67b196e3377ca7"><td class="mdescLeft">&#160;</td><td class="mdescRight">D-Cache Invalidate by address.  <br /></td></tr>
 155 <tr class="separator:ga31c2439722ab4dbd0c67b196e3377ca7"><td class="memSeparator" colspan="2">&#160;</td></tr>
 156 <tr class="memitem:gabc9e51347dca344c72948c3dba0364fd"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Dcache__functions__m7.html#gabc9e51347dca344c72948c3dba0364fd">SCB_CleanDCache_by_Addr</a> (volatile void *addr, int32_t dsize)</td></tr>
 157 <tr class="memdesc:gabc9e51347dca344c72948c3dba0364fd"><td class="mdescLeft">&#160;</td><td class="mdescRight">D-Cache Clean by address.  <br /></td></tr>
 158 <tr class="separator:gabc9e51347dca344c72948c3dba0364fd"><td class="memSeparator" colspan="2">&#160;</td></tr>
 159 <tr class="memitem:ga83fe294bcc60d3c4f1c279f13477dda7"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Dcache__functions__m7.html#ga83fe294bcc60d3c4f1c279f13477dda7">SCB_CleanInvalidateDCache_by_Addr</a> (volatile void *addr, int32_t dsize)</td></tr>
 160 <tr class="memdesc:ga83fe294bcc60d3c4f1c279f13477dda7"><td class="mdescLeft">&#160;</td><td class="mdescRight">D-Cache Clean and Invalidate by address.  <br /></td></tr>
 161 <tr class="separator:ga83fe294bcc60d3c4f1c279f13477dda7"><td class="memSeparator" colspan="2">&#160;</td></tr>
 162 </table>
 163 <a name="details" id="details"></a><h2 class="groupheader">Description</h2>
 164 <p>Functions for the level-1 data cache. </p>
 165 <p>// close ICache functions</p>
 166 <h2 class="groupheader">Function Documentation</h2>
 167 <a id="gaf5585be5547cc60585d702a6129f4c17" name="gaf5585be5547cc60585d702a6129f4c17"></a>
 168 <h2 class="memtitle"><span class="permalink"><a href="#gaf5585be5547cc60585d702a6129f4c17">&#9670;&#160;</a></span>SCB_CleanDCache()</h2>
 169
 170 <div class="memitem">
 171 <div class="memproto">
 172       <table class="memname">
 173         <tr>
 174           <td class="memname"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void SCB_CleanDCache </td>
 175           <td>(</td>
 176           <td class="paramtype">void&#160;</td>
 177           <td class="paramname"></td><td>)</td>
 178           <td></td>
 179         </tr>
 180       </table>
 181 </div><div class="memdoc">
 182
 183 <p>Clean D-Cache. </p>
 184 <p>The function cleans the entire data cache. </p>
 185
 186 </div>
 187 </div>
 188 <a id="gabc9e51347dca344c72948c3dba0364fd" name="gabc9e51347dca344c72948c3dba0364fd"></a>
 189 <h2 class="memtitle"><span class="permalink"><a href="#gabc9e51347dca344c72948c3dba0364fd">&#9670;&#160;</a></span>SCB_CleanDCache_by_Addr()</h2>
 190
 191 <div class="memitem">
 192 <div class="memproto">
 193       <table class="memname">
 194         <tr>
 195           <td class="memname"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void SCB_CleanDCache_by_Addr </td>
 196           <td>(</td>
 197           <td class="paramtype">volatile void *&#160;</td>
 198           <td class="paramname"><em>addr</em>, </td>
 199         </tr>
 200         <tr>
 201           <td class="paramkey"></td>
 202           <td></td>
 203           <td class="paramtype">int32_t&#160;</td>
 204           <td class="paramname"><em>dsize</em>&#160;</td>
 205         </tr>
 206         <tr>
 207           <td></td>
 208           <td>)</td>
 209           <td></td><td></td>
 210         </tr>
 211       </table>
 212 </div><div class="memdoc">
 213
 214 <p>D-Cache Clean by address. </p>
 215 <dl class="params"><dt>Parameters</dt><dd>
 216   <table class="params">
 217     <tr><td class="paramdir">[in]</td><td class="paramname">addr</td><td>address (aligned to 32-byte boundary) </td></tr>
 218     <tr><td class="paramdir">[in]</td><td class="paramname">dsize</td><td>size of memory block (in number of bytes)</td></tr>
 219   </table>
 220   </dd>
 221 </dl>
 222 <p>The function cleans a memory block of size <em>dsize</em> [bytes] starting at address <em>address</em>. The address is aligned to 32-byte boundary. </p>
 223
 224 </div>
 225 </div>
 226 <a id="ga5b22ca58709fadc326da83197a2f28bb" name="ga5b22ca58709fadc326da83197a2f28bb"></a>
 227 <h2 class="memtitle"><span class="permalink"><a href="#ga5b22ca58709fadc326da83197a2f28bb">&#9670;&#160;</a></span>SCB_CleanInvalidateDCache()</h2>
 228
 229 <div class="memitem">
 230 <div class="memproto">
 231       <table class="memname">
 232         <tr>
 233           <td class="memname"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void SCB_CleanInvalidateDCache </td>
 234           <td>(</td>
 235           <td class="paramtype">void&#160;</td>
 236           <td class="paramname"></td><td>)</td>
 237           <td></td>
 238         </tr>
 239       </table>
 240 </div><div class="memdoc">
 241
 242 <p>Clean &amp; Invalidate D-Cache. </p>
 243 <p>The function cleans and invalidates the entire data cache. </p>
 244
 245 </div>
 246 </div>
 247 <a id="ga83fe294bcc60d3c4f1c279f13477dda7" name="ga83fe294bcc60d3c4f1c279f13477dda7"></a>
 248 <h2 class="memtitle"><span class="permalink"><a href="#ga83fe294bcc60d3c4f1c279f13477dda7">&#9670;&#160;</a></span>SCB_CleanInvalidateDCache_by_Addr()</h2>
 249
 250 <div class="memitem">
 251 <div class="memproto">
 252       <table class="memname">
 253         <tr>
 254           <td class="memname"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void SCB_CleanInvalidateDCache_by_Addr </td>
 255           <td>(</td>
 256           <td class="paramtype">volatile void *&#160;</td>
 257           <td class="paramname"><em>addr</em>, </td>
 258         </tr>
 259         <tr>
 260           <td class="paramkey"></td>
 261           <td></td>
 262           <td class="paramtype">int32_t&#160;</td>
 263           <td class="paramname"><em>dsize</em>&#160;</td>
 264         </tr>
 265         <tr>
 266           <td></td>
 267           <td>)</td>
 268           <td></td><td></td>
 269         </tr>
 270       </table>
 271 </div><div class="memdoc">
 272
 273 <p>D-Cache Clean and Invalidate by address. </p>
 274 <dl class="params"><dt>Parameters</dt><dd>
 275   <table class="params">
 276     <tr><td class="paramdir">[in]</td><td class="paramname">addr</td><td>address (aligned to 32-byte boundary) </td></tr>
 277     <tr><td class="paramdir">[in]</td><td class="paramname">dsize</td><td>size of memory block (in number of bytes)</td></tr>
 278   </table>
 279   </dd>
 280 </dl>
 281 <p>The function invalidates and cleans a memory block of size <em>dsize</em> [bytes] starting at address <em>address</em>. The address is aligned to 32-byte boundary. </p>
 282
 283 </div>
 284 </div>
 285 <a id="gafe64b44d1a61483a947e44a77a9d3287" name="gafe64b44d1a61483a947e44a77a9d3287"></a>
 286 <h2 class="memtitle"><span class="permalink"><a href="#gafe64b44d1a61483a947e44a77a9d3287">&#9670;&#160;</a></span>SCB_DisableDCache()</h2>
 287
 288 <div class="memitem">
 289 <div class="memproto">
 290       <table class="memname">
 291         <tr>
 292           <td class="memname"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void SCB_DisableDCache </td>
 293           <td>(</td>
 294           <td class="paramtype">void&#160;</td>
 295           <td class="paramname"></td><td>)</td>
 296           <td></td>
 297         </tr>
 298       </table>
 299 </div><div class="memdoc">
 300
 301 <p>Disable D-Cache. </p>
 302 <p>The function turns off the entire data cache.</p>
 303 <dl class="section note"><dt>Note</dt><dd>When disabling the data cache, you must clean (<a class="el" href="group__Dcache__functions__m7.html#gaf5585be5547cc60585d702a6129f4c17">SCB_CleanDCache</a>) the entire cache to ensure that any dirty data is flushed to external memory. </dd></dl>
 304
 305 </div>
 306 </div>
 307 <a id="ga3861db932100ccb53f994e2cc68ed79c" name="ga3861db932100ccb53f994e2cc68ed79c"></a>
 308 <h2 class="memtitle"><span class="permalink"><a href="#ga3861db932100ccb53f994e2cc68ed79c">&#9670;&#160;</a></span>SCB_EnableDCache()</h2>
 309
 310 <div class="memitem">
 311 <div class="memproto">
 312       <table class="memname">
 313         <tr>
 314           <td class="memname"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void SCB_EnableDCache </td>
 315           <td>(</td>
 316           <td class="paramtype">void&#160;</td>
 317           <td class="paramname"></td><td>)</td>
 318           <td></td>
 319         </tr>
 320       </table>
 321 </div><div class="memdoc">
 322
 323 <p>Enable D-Cache. </p>
 324 <p>The function turns on the entire data cache. </p><dl class="section note"><dt>Note</dt><dd>Before enabling the data cache, you must invalidate the entire data cache (<a class="el" href="group__Dcache__functions__m7.html#ga99fe43c224644881935de135ceaa2dd9">SCB_InvalidateDCache</a>), because external memory might have changed from when the cache was disabled.</dd>
 325 <dd>
 326 After reset, you must invalidate (<a class="el" href="group__Dcache__functions__m7.html#ga99fe43c224644881935de135ceaa2dd9">SCB_InvalidateDCache</a>) each cache before enabling it. </dd></dl>
 327
 328 </div>
 329 </div>
 330 <a id="ga99fe43c224644881935de135ceaa2dd9" name="ga99fe43c224644881935de135ceaa2dd9"></a>
 331 <h2 class="memtitle"><span class="permalink"><a href="#ga99fe43c224644881935de135ceaa2dd9">&#9670;&#160;</a></span>SCB_InvalidateDCache()</h2>
 332
 333 <div class="memitem">
 334 <div class="memproto">
 335       <table class="memname">
 336         <tr>
 337           <td class="memname"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void SCB_InvalidateDCache </td>
 338           <td>(</td>
 339           <td class="paramtype">void&#160;</td>
 340           <td class="paramname"></td><td>)</td>
 341           <td></td>
 342         </tr>
 343       </table>
 344 </div><div class="memdoc">
 345
 346 <p>Invalidate D-Cache. </p>
 347 <p>The function invalidates the entire data cache.</p>
 348 <dl class="section note"><dt>Note</dt><dd>After reset, you must invalidate each cache before enabling (<a class="el" href="group__Dcache__functions__m7.html#ga3861db932100ccb53f994e2cc68ed79c">SCB_EnableDCache</a>) it. </dd></dl>
 349
 350 </div>
 351 </div>
 352 <a id="ga31c2439722ab4dbd0c67b196e3377ca7" name="ga31c2439722ab4dbd0c67b196e3377ca7"></a>
 353 <h2 class="memtitle"><span class="permalink"><a href="#ga31c2439722ab4dbd0c67b196e3377ca7">&#9670;&#160;</a></span>SCB_InvalidateDCache_by_Addr()</h2>
 354
 355 <div class="memitem">
 356 <div class="memproto">
 357       <table class="memname">
 358         <tr>
 359           <td class="memname"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void SCB_InvalidateDCache_by_Addr </td>
 360           <td>(</td>
 361           <td class="paramtype">volatile void *&#160;</td>
 362           <td class="paramname"><em>addr</em>, </td>
 363         </tr>
 364         <tr>
 365           <td class="paramkey"></td>
 366           <td></td>
 367           <td class="paramtype">int32_t&#160;</td>
 368           <td class="paramname"><em>dsize</em>&#160;</td>
 369         </tr>
 370         <tr>
 371           <td></td>
 372           <td>)</td>
 373           <td></td><td></td>
 374         </tr>
 375       </table>
 376 </div><div class="memdoc">
 377
 378 <p>D-Cache Invalidate by address. </p>
 379 <dl class="params"><dt>Parameters</dt><dd>
 380   <table class="params">
 381     <tr><td class="paramdir">[in]</td><td class="paramname">addr</td><td>address (aligned to 32-byte boundary) </td></tr>
 382     <tr><td class="paramdir">[in]</td><td class="paramname">dsize</td><td>size of memory block (in number of bytes)</td></tr>
 383   </table>
 384   </dd>
 385 </dl>
 386 <p>The function invalidates a memory block of size <em>dsize</em> [bytes] starting at address <em>address</em>. The address is aligned to 32-byte boundary. </p>
 387
 388 </div>
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