{"id":6743,"date":"2023-07-05T08:55:37","date_gmt":"2023-07-04T23:55:37","guid":{"rendered":"https:\/\/solid.kmckk.com\/SOLID\/?p=6743"},"modified":"2023-07-05T08:55:37","modified_gmt":"2023-07-04T23:55:37","slug":"solid%e4%bd%bf%e3%81%a3%e3%81%a6%e3%81%bf%e3%82%88%e3%81%86%e3%82%b7%e3%83%aa%e3%83%bc%e3%82%ba3-%e3%80%8c%e3%82%b3%e3%83%bc%e3%83%89%e3%82%ab%e3%83%90%e3%83%ac%e3%83%83%e3%82%b8%e3%80%8d-2-5-2-2-2-25","status":"publish","type":"post","link":"https:\/\/solid.kmckk.com\/SOLID\/archives\/6743","title":{"rendered":"SOLID\u306eMMU\u4f7f\u3044\u3053\u306a\u3057\u30fc\uff13\uff08\u9023\u8f09\uff16\uff09"},"content":{"rendered":"
\n
\n\t

(2023\/7\/5)<\/p>\n

\uff3b\u9023\u8f09\uff16\uff3d SOLID\u306eMMU\u4f7f\u3044\u3053\u306a\u3057\u30fc\uff13<\/span><\/p>\n

\u7b2c\u4e00\u56de<\/a>\u304b\u3089\u7b2c\u4e09\u56de<\/a>\u307e\u3067\u3001MMU\u3092\u4f7f\u3044\u3053\u306a\u3059\u3053\u3068\u306b\u3088\u308b\u4fbf\u5229\u6a5f\u80fd\u3092\u3054\u7d39\u4ecb\u307e\u3057\u305f\u3002
\nNULL\u30dd\u30a4\u30f3\u30bf\u3084\u30b9\u30bf\u30c3\u30af\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u7b49\u3001\u30e1\u30e2\u30ea\u306e\u30a2\u30af\u30bb\u30b9\u9055\u53cd\u767a\u751f\u6642\u306b\u3001\u30d6\u30ec\u30fc\u30af\u3057\u3066\u6559\u3048\u3066\u304f\u308c\u307e\u3057\u305f\u3002<\/p>\n

\u305d\u306e\u307e\u307e\u300c\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u30c1\u30a7\u30c3\u30af\u300d\u3064\u306a\u304c\u308a\u3067\u3001\u7b2c\u56db\u56de\u3001\u7b2c\u4e94\u56de\u3068\u3001\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u5148\u306e\u30a2\u30c9\u30ec\u30b9\u59a5\u5f53\u6027\u3092\u9055\u53cd\u3057\u305f\u969b\u306b\u6559\u3048\u3066\u304f\u308c\u308b\u3001\u30a2\u30c9\u30ec\u30b9\u30b5\u30cb\u30bf\u30a4\u30b6\u6a5f\u80fd\u306b\u3064\u3044\u3066\u3054\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002<\/p>\n

\u3067\u3001\u3053\u3053\u306b\u304d\u3066\u3001MMU\u3067\u3054\u7d39\u4ecb\u3057\u3066\u304a\u304b\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3082\u3046\u4e00\u3064\u306e\u4fbf\u5229\u6a5f\u80fd\u306b\u3064\u3044\u3066\u306e\u3054\u7d39\u4ecb\u3092\u5fd8\u308c\u3066\u3044\u305f\u3053\u3068\u306b\u6c17\u304c\u4ed8\u304d\u307e\u3057\u305f\u3002
\n\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u30c1\u30a7\u30c3\u30af\u3064\u306a\u304c\u308a\u3067\u3001\u3060\u30fc\u3063\u3068\u884c\u3063\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u304c\u3001\u307e\u305fMMU\u306b\u623b\u308a\u307e\u3059\u3002<\/p>\n

 <\/p>\n

 <\/p>\n<\/div>\n<\/div><\/div>

\uff11\uff0eMMU\u306f\u521d\u671f\u8a2d\u5b9a\u306e\u307e\u307e\u3067\u3044\u3044\u306e\u304b\uff1f<\/h3>\n
\n\t

SOLID-IDE\u3092\u4f7f\u3046\u5834\u5408\u3001mms\u30d5\u30a1\u30a4\u30eb\u3092\u7de8\u96c6\u3059\u308b\u3053\u3068\u3067\u4eee\u60f3\u30a2\u30c9\u30ec\u30b9\u3068\u7269\u7406\u30a2\u30c9\u30ec\u30b9\u306e\u5bfe\u5fdc\u3092\u81ea\u5206\u306e\u30b7\u30b9\u30c6\u30e0\u306b\u3042\u3046\u3088\u3046\u306b\u5909\u66f4\u30fb\u8a2d\u5b9a\u3059\u308b\u3002<\/p>\n

\u3082\u3061\u308d\u3093\u3001\u3053\u306e\u8a2d\u5b9a\u3001\u305a\u3063\u3068\u56fa\u5b9a\u3067\u826f\u3044\u5834\u5408\u3082\u3042\u308b\u3067\u3057\u3087\u3046\u3002
\n\u3067\u3059\u304c\u3001\u30b7\u30b9\u30c6\u30e0\u306b\u3088\u3063\u3066\u306f\u9055\u3044\u307e\u3059\u3002<\/p>\n

\u4f8b\u3048\u3070\u3001\u30ed\u30fc\u30c0\u30fc\u3068\u3044\u3046\u3082\u306e\u306b\u3064\u3044\u3066\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002
\n\u30e1\u30e2\u30ea\u306e\u3001\u3068\u3042\u308b\u90e8\u5206\u304c\u30ed\u30fc\u30c0\u30fc\u306b\u306a\u3063\u3066\u3044\u3066\u3001\u5225\u306e\u90e8\u5206\u304c\u5b9f\u884c\u30d5\u30a1\u30a4\u30eb\u683c\u7d0d\u5834\u6240\u306b\u306a\u3063\u3066\u3044\u308b\u3088\u3046\u306a\u30b1\u30fc\u30b9\u304c\u3042\u3063\u305f\u3068\u3057\u307e\u3059\u3002<\/p>\n

\"\"<\/a><\/p>\n

\u30fb\u30a8\u30ea\u30a2\uff11\uff1a\u30ed\u30fc\u30c0\u30fc\u304c\u5165\u3063\u3066\u3044\u308b\u30a8\u30ea\u30a2
\n\u30fb\u30a8\u30ea\u30a2\uff12\uff1a\u30ed\u30fc\u30c0\u30fc\u306b\u3088\u3063\u3066\u66f8\u304d\u63db\u3048\u3089\u308c\u308b\u30d5\u30a1\u30fc\u30e0\u30a6\u30a7\u30a2\u306e\u30a8\u30ea\u30a2<\/p>\n

\u30ed\u30fc\u30c0\u30fc\u52d5\u4f5c\u6642\uff1a
\n\u30a8\u30ea\u30a2\uff12\u306f\u3001\u30a8\u30ea\u30a2\uff11\u306e\u30ed\u30fc\u30c0\u30fc\u306b\u3088\u3063\u3066\u66f8\u304d\u63db\u3048\u3089\u308c\u307e\u3059\u306e\u3067\u3001\u30e9\u30a4\u30c8\u53ef\u5c5e\u6027\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u30ed\u30fc\u30c0\u30fc\u7d42\u4e86\u3057\u30a8\u30ea\u30a2\uff12\u306b\u30b8\u30e3\u30f3\u30d7\uff1a
\n\u30ed\u30fc\u30c0\u30fc\u306f\u30a8\u30ea\u30a2\uff12\u306b\u30e9\u30a4\u30c8\u4e0d\u53ef\u5c5e\u6027\u3068\u5b9f\u884c\u53ef\u5c5e\u6027\u3092\u4ed8\u52a0\u3057\u3001\u30a8\u30ea\u30a2\uff12\u306b\u30b8\u30e3\u30f3\u30d7\u3057\u307e\u3059\u3002<\/p>\n

\u3082\u3061\u308d\u3093\u3001\u3053\u306e\u901a\u308a\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002
\n\u30a8\u30ea\u30a2\uff12\u306f\u305a\u3063\u3068\u3001\u30e9\u30a4\u30c8\u4e0d\u53ef\u5c5e\u6027\u3082\u5b9f\u884c\u53ef\u5c5e\u6027\u3082\u4e21\u65b9\u3064\u3051\u3066\u3044\u308c\u3070\u826f\u3044\u3068\u3044\u3046\u8003\u3048\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u3067\u3059\u304c\u3001\u5b9f\u884c\u3057\u306a\u3044\u306e\u304c\u308f\u304b\u3063\u3066\u3044\u308b\u30a8\u30ea\u30a2\u306b\u5b9f\u884c\u53ef\u5c5e\u6027\u3092\u4ed8\u3051\u308b\u306e\u3092\u8e8a\u8e87\u3057\u305f\u308a\u3001\u30d5\u30a1\u30fc\u30e0\u30a6\u30a7\u30a2\u5b9f\u884c\u30a8\u30ea\u30a2\u304c\u30e9\u30a4\u30c8\u53ef\u306b\u306a\u3063\u3066\u3044\u308b\u3068\u58ca\u3055\u308c\u3066\u3057\u307e\u3063\u305f\u5834\u5408\u308f\u304b\u3089\u306a\u3044\u3001\u7b49\u306e\u7406\u7531\u306e\u305f\u3081\u3001\u3053\u306e\u3088\u3046\u306b\u8a2d\u5b9a\u3059\u308b\u5834\u5408\u3082\u591a\u3044\u4e8b\u3067\u3057\u3087\u3046\u3002<\/p>\n

\u3053\u306e\u3088\u3046\u306b\u3001MMU\u306f\u3001\u6642\u3068\u3057\u3066\u30d7\u30ed\u30b0\u30e9\u30e0\u304b\u3089\u8a2d\u5b9a\u5909\u66f4\u3057\u305f\u3044\u306a\u3001\u3001\u3001\u3068\u3044\u3046\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u3053\u3093\u306a\u6642\u306e\u305f\u3081\u306b\u3001SOLID-OS\u3067\u306f\u3001Cortex A\u30b7\u30ea\u30fc\u30ba\u7528MMU\u306e\u8a2d\u5b9a\u3092\u30a2\u30ec\u30b3\u30ec\u3059\u308b\u305f\u3081\u306eAPI\u3092\u88c5\u5099\u3057\u3066\u3044\u307e\u3059\u3002
\nCortex A\u306e\u30de\u30cb\u30e5\u30a2\u30eb\u3068\u306b\u3089\u3081\u3063\u3053\u3057\u306a\u304c\u3089\u3001\u7c21\u5358\u3067\u306f\u306a\u3044MMU\u306e\u8a2d\u5b9a\u3092\u3001\u3057\u304b\u3082\u30a2\u30bb\u30f3\u30d6\u30e9\u30b3\u30fc\u30c9\u3092\u4f7f\u3044\u306a\u304c\u3089\u66f8\u304f\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n

 <\/p>\n

 <\/p>\n<\/div>\n<\/div><\/div>

\uff12\uff0eMMU\u95a2\u9023API\u7d39\u4ecb<\/h3>\n
\n\t

\u4ee5\u4e0bURL\u306b\u307e\u3068\u307e\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

http:\/\/solid.kmckk.com\/doc\/skit\/current\/os\/cs\/memory.html#id1<\/a><\/p>\n

\u4e00\u90e8\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n

(1)\u4eee\u60f3\uff0f\u7269\u7406\u30a2\u30c9\u30ec\u30b9\u30de\u30c3\u30d7
\nint SOLID_MEM_Map(SOLID_ADDRESS VA, size_t size, SOLID_PHYADDRESS PA)
\n\u21d2\u6307\u5b9a\u3055\u308c\u305f\u4eee\u60f3\u30a2\u30c9\u30ec\u30b9\u306b\u3001\u6307\u5b9a\u3055\u308c\u305f\u7269\u7406\u30a2\u30c9\u30ec\u30b9\u3092\u3001\u6307\u5b9a\u3055\u308c\u305f\u30b5\u30a4\u30ba\u5206\u30de\u30c3\u30d7\u3059\u308bAPI\u3067\u3059\u3002<\/p>\n

 <\/p>\n

(2) \u30e1\u30e2\u30ea\u5c5e\u6027\u4ed8\u304d\u3067\u30de\u30c3\u30d7
\n\u4ee5\u4e0b\u306eAPI\u306f\u3001\u30e1\u30e2\u30ea\u5c5e\u6027\u4ed8\u304d\u3067\u30de\u30c3\u30d7\u3057\u307e\u3059\u3002
\nint SOLID_MEM_MapWithAttribute(SOLID_ADDRESS VA, size_t size, SOLID_PHYADDRESS PA, int attr)<\/p>\n

\u30e1\u30e2\u30ea\u5c5e\u6027\u306b\u306f\u3001\u66f8\u304d\u8fbc\u307f\u4e0d\u53ef\u3001\u5b9f\u884c\u53ef\u80fd\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u53ef\u80fd\u3001\u7b49\u3042\u308a\u307e\u3059\u3002
\n\u8a73\u7d30\u306f\u3053\u3061\u3089\u3002<\/p>\n

http:\/\/solid.kmckk.com\/doc\/skit\/current\/os\/cs\/memory.html#solid-mem-attr<\/a><\/p>\n

 <\/p>\n

(3)\u30ad\u30e3\u30c3\u30b7\u30e5\u64cd\u4f5c\uff1a\u30b3\u30fc\u30c9\u30ad\u30e3\u30c3\u30b7\u30e5\u7834\u68c4
\nvoid SOLID_MEM_CACHE_InvalidateCode(SOLID_ADDRESS VA, size_t size)
\n\u4f8b\u3048\u3070\u3053\u306eAPI\u306f\u3001\u6307\u5b9a\u3055\u308c\u305f\u9818\u57df\u306e\u30b3\u30fc\u30c9\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u7834\u68c4\u3057\u307e\u3059\u3002<\/p>\n

\u30b3\u30fc\u30c9\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u7834\u68c4\u3059\u308b\u5834\u5408\u306e\u4f8b\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002
\n\u4f8b\u3048\u3070\u3001\u30ed\u30fc\u30c0\u30fc\u7b49\u306b\u3088\u308a\u3001\u30b3\u30fc\u30c9\u9818\u57df\u3092\u610f\u56f3\u7684\u306b\u66f8\u304d\u63db\u3048\u3088\u3046\u3068\u3059\u308b\u5834\u5408\u3067\u3059\u3002
\n\u305d\u306e\u66f8\u304d\u63db\u3048\u51e6\u7406\u306f\u30c7\u30fc\u30bf\u66f8\u304d\u8fbc\u307f\u306b\u3088\u308a\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002
\n\u306a\u306e\u3067\u3001\u30ad\u30e3\u30c3\u30b7\u30e5ON\u306e\u307e\u307e\u66f8\u304d\u63db\u3048\u305f\u3068\u3057\u3066\u3082\u3001\u305d\u308c\u306f\u30c7\u30fc\u30bf\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u8f09\u308b\u3060\u3051\u3067\u3001\u30b3\u30fc\u30c9\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u306f\u3001\u4ee5\u524d\u306e\u547d\u4ee4\u30b3\u30fc\u30c9\u304c\u5165\u308a\u3063\u3071\u306a\u3057\u3067\u3059\u3002
\n\u306a\u306e\u3067\u3001\u4e00\u5ea6\u30b3\u30fc\u30c9\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u7834\u68c4\u3057\u3066\u304a\u304b\u306a\u3044\u3068\u3001\u4ee5\u524d\u306e\u547d\u4ee4\u304c\u5b9f\u884c\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n

 <\/p>\n

(4)\u30ad\u30e3\u30c3\u30b7\u30e5\u64cd\u4f5c\uff1a\u30c7\u30fc\u30bf\u30ad\u30e3\u30c3\u30b7\u30e5\u66f8\u304d\u623b\u3057
\nvoid SOLID_MEM_CACHE_Clean(SOLID_ADDRESS VA, size_t size)
\n\u30c7\u30fc\u30bf\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u8f09\u3063\u3066\u3044\u308b\u30c7\u30fc\u30bf\u3092\u30e1\u30e2\u30ea\u306b\u66f8\u304d\u623b\u3059API\u3067\u3059\u3002
\n\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3001\u3068\u3042\u308b\u9818\u57df\u306b\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u3053\u307f\u3001\u305d\u306e\u9818\u57df\u3092CPU\u3092\u4f7f\u308f\u305a\u306b\uff08DMA\u7b49\u3067\uff09\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u7684\u306b\u8ee2\u9001\u3059\u308b\u3001\u3068\u3044\u3063\u305f\u969b\u306b\u3088\u304f\u4f7f\u3044\u307e\u3059\u3002<\/p>\n

\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u30c7\u30fc\u30bf\u66f8\u304d\u8fbc\u307f\u3059\u308b\u3001\u3068\u3044\u3046\u4e8b\u306f\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u306e\u307f\u66f8\u304d\u8fbc\u307e\u308c\u308b\u30ef\u30b1\u3067\u3001DMA\u7b49\u306e\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u304c\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u7269\u7406\u7684\u306a\u30e1\u30e2\u30ea\u306b\u306f\u53cd\u6620\u3055\u308c\u306a\u3044\u304b\u3089\u3067\u3059\u3002<\/p>\n

\u3082\u3061\u308d\u3093\u3001\u305d\u306e\u5bfe\u8c61\u9818\u57df\u3092\u306f\u3058\u3081\u304b\u3089\u30ad\u30e3\u30c3\u30b7\u30e5\u4e0d\u53ef\u9818\u57df\u306b\u3059\u308c\u3070\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u3002
\n\u30d7\u30ed\u30b0\u30e9\u30e0\u304b\u3089\u66f8\u304d\u8fbc\u3080\u969b\u306b\u30ad\u30e3\u30c3\u30b7\u30e5ON\u3067\u66f8\u304d\u8fbc\u307f\u3001\u8ee2\u9001\u76f4\u524d\u306b\u7269\u7406\u30e1\u30e2\u30ea\u306b\u66f8\u304d\u623b\u3059\u306e\u304b\u3001\u305d\u3082\u305d\u3082\u6700\u521d\u304b\u3089\u30ad\u30e3\u30c3\u30b7\u30e5\u4e0d\u53ef\u9818\u57df\u306b\u3057\u3066\u304a\u304f\u306e\u304b\u3001\u305d\u308c\u306f\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u6b21\u7b2c\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n

 <\/p>\n

 <\/p>\n<\/div>\n<\/div><\/div><\/div><\/div>

\uff13\uff0e\u4f7f\u3063\u3066\u307f\u308b<\/h3>\n
\n\t

\u3067\u306f\u3001\u5b9f\u969b\u306b\u4f7f\u3063\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n

3.1 \u30e1\u30e2\u30ea\u5272\u308a\u5f53\u3066<\/span><\/h2>\n

\u307e\u305a\u3001\u4eca\u56de\u4f7f\u3046\u4eee\u60f3\u30a2\u30c9\u30ec\u30b9\u3092\u30de\u30c3\u30d4\u30f3\u30b0\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n

\u3069\u3053\u306e\u5834\u6240\u306b\u3057\u307e\u3057\u3087\u3046\u304b\u3002
\n\u30e1\u30e2\u30ea\u30de\u30c3\u30d7\u30c7\u30b6\u30a4\u30ca\u30fc\u3067\u3001\u4f55\u3082\u5272\u308a\u5f53\u3066\u3089\u308c\u3066\u3044\u306a\u3044\u4eee\u60f3\u30a2\u30c9\u30ec\u30b9\u3092\u8abf\u3079\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n

\"\"<\/a><\/p>\n

0x42000000\u304b\u3089\u3001\u3057\u3070\u3089\u304f\u7a7a\u3044\u3066\u3044\u307e\u3059\u306d\u3002<\/p>\n

\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002
\n\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u66f8\u3044\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n

\"\"<\/a><\/p>\n

\u5b9f\u884c\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n

\"\"<\/a><\/p>\n

\u30ea\u30fc\u30c9\u30a2\u30af\u30bb\u30b9\u3067\u3001Data Abort Exception\u304c\u767a\u751f\u3057\u307e\u3057\u305f\u3002\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u3067\u3059\u306d\u3002
\n\u30e1\u30e2\u30ea\u30a6\u30a4\u30f3\u30c9\u30a6\u3067\u898b\u3066\u3082\u3001\u30a2\u30af\u30bb\u30b9\u304c\u3067\u304d\u306a\u3044\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n

\u3067\u306f\u3001\u3053\u3053\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002
\nSOLID_MEM_Alloc()\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3001\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u66f8\u3044\u3066\u307f\u307e\u3059\u3002<\/p>\n

\"\"<\/a><\/p>\n

\u5b9f\u884c\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n

\"\"<\/a><\/p>\n

SOLID_MEM_Alloc()\u95a2\u6570\u306e\u623b\u308a\u5024\u306f0\u306a\u306e\u3067\u3001\u30de\u30c3\u30d4\u30f3\u30b0\u6210\u529f\u3067\u3059\u3002
\n0x42000000\u756a\u5730\u3078\u306e\u30ea\u30fc\u30c9\u3082\u30e9\u30a4\u30c8\u3082\u3001\u4f8b\u5916\u767a\u751f\u3057\u3066\u3044\u307e\u305b\u3093\u3002
\n\u307e\u305f\u3001\u30e1\u30e2\u30ea\u30a6\u30a4\u30f3\u30c9\u30a6\u304b\u3089\u898b\u308b\u3068\u4f55\u304b\u3057\u3089\u5024\u304c\u8aad\u3081\u308b\u3053\u3068\u304b\u3089\u3001\u30de\u30c3\u30d4\u30f3\u30b0OK\u3067\u3059\u306d\u3002<\/p>\n

\u3068\u3053\u308d\u3067\u3001\u3053\u306e\u4eee\u60f3\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u3069\u306e\u7269\u7406\u30a2\u30c9\u30ec\u30b9\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3055\u308c\u305f\u306e\u3067\u3057\u3087\u3046\u304b\u3002
\nSOLID_MEM_VA2PA()\u95a2\u6570\u3092\u7528\u3044\u3066\u8abf\u3079\u3066\u307f\u307e\u3059\u3002<\/p>\n

\"\"<\/a><\/p>\n

\u7269\u7406\u30a2\u30c9\u30ec\u30b9 0x4A000000\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n

\u5148\u7a0b\u306e\u30e1\u30e2\u30ea\u30de\u30c3\u30d7\u30c7\u30b6\u30a4\u30ca\u3092\u307f\u308b\u3068\u3001\u3053\u306e\u7269\u7406\u30a2\u30c9\u30ec\u30b9\u306f\u201dRAM\u201d\u3068\u3057\u3066SOLID\u304c\u5272\u308a\u5f53\u3066\u7528\u306b\u78ba\u4fdd\u3057\u3066\u3044\u308b\u9818\u57df\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n

\"\"<\/a><\/p>\n

 <\/p>\n

3.2 \u66f8\u304d\u8fbc\u307f\u53ef\uff0f\u4e0d\u53ef<\/span><\/h2>\n

\u6b21\u306b\u3001\u65e2\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u9818\u57df\u306e\u30a2\u30af\u30bb\u30b9\u5c5e\u6027\u3092\u5909\u66f4\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n

\u307e\u305a\u3001\u5148\u307b\u3069\u8a2d\u5b9a\u3057\u305f\u4eee\u60f3\u30a2\u30c9\u30ec\u30b90x42000000\u306e\u30a2\u30af\u30bb\u30b9\u5c5e\u6027\u3092\u8abf\u3079\u3066\u307f\u307e\u3057\u3087\u3046\u3002
\nSOLID_MEM_GetAttr()\u95a2\u6570\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n

\"\"<\/a><\/p>\n

\u5b9f\u884c\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n

\"\"<\/a><\/p>\n

0x0C\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u5c5e\u6027\u306b\u3064\u3044\u3066\u8aac\u660e\u304c\u3055\u308c\u3066\u3044\u308bURL\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n

http:\/\/solid.kmckk.com\/doc\/skit\/current\/os\/cs\/memory.html#solid-mem-attr<\/a><\/p>\n

\"\"<\/a><\/p>\n

0x0C\u306a\u306e\u3067\u3001
\n\u30fb\u30ad\u30e3\u30c3\u30b7\u30e5\u53ef
\n\u30fb\u30d0\u30c3\u30d5\u30a1\u53ef
\n\u3067\u3059\u306d\u3002
\n\u305d\u3057\u3066\u6700\u4e0b\u4f4d\u30d3\u30c3\u30c8\u304c0\u306a\u306e\u3067\u3001SOLID_MEM_ATTR_READONLY\u306f0\u3002
\n\u3059\u306a\u308f\u3061\u3001\u30ea\u30fc\u30c9\u30e9\u30a4\u30c8OK\u3001\u3067\u3059\u306d\u3002<\/p>\n

\u3067\u306f\u3001\u30ea\u30fc\u30c9\u30aa\u30f3\u30ea\u30fc\uff08\u66f8\u304d\u8fbc\u307f\u4e0d\u53ef\uff09\u306b\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002
\nSOLID_MEM_SetAttr()\u95a2\u6570\u3092\u4f7f\u3044\u307e\u3059\u3002
\n\u66f8\u304d\u8fbc\u307f\u3067\u4f8b\u5916\u304c\u767a\u751f\u3059\u308b\u306f\u305a\u3001\u3067\u3059\u3002<\/p>\n

\"\"<\/a><\/p>\n

\u5b9f\u884c\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n

\"\"<\/a><\/p>\n

\u601d\u60d1\u901a\u308a\u3001\u30ea\u30fc\u30c9\u306f\u3067\u304d\u307e\u3059\u304c\u66f8\u304d\u8fbc\u307f\u3067\u304d\u307e\u305b\u3093\u3067\u3057\u305f\u3002
\n\u4f8b\u5916\u767a\u751f\u3057\u307e\u3057\u305f\u3002<\/p>\n

\u6700\u5f8c\u306b\u3001\u30e1\u30e2\u30ea\u30de\u30c3\u30d4\u30f3\u30b0\u3092\u524a\u9664\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002
\nSOLID_MEM_Free()\u95a2\u6570\u3092\u4f7f\u3044\u307e\u3059\u3002
\n\u30de\u30c3\u30d4\u30f3\u30b0\u524a\u9664\u5f8c\u3001\u30e1\u30e2\u30ea\u30ea\u30fc\u30c9\u304c\u3067\u304d\u306a\u304f\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n

\"\"<\/a><\/p>\n

\u5b9f\u884c\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n

\"\"<\/a><\/p>\n

\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3057\u305f\u3002
\n\u30e1\u30e2\u30ea\u30a6\u30a4\u30f3\u30c9\u30a6\u304b\u3089\u3082\u3001\u8aad\u3081\u306a\u304f\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n

\u30de\u30c3\u30d4\u30f3\u30b0\u304c\u524a\u9664\u3055\u308c\u305f\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n

 <\/p>\n

 <\/p>\n<\/div>\n<\/div><\/div>

\uff14\uff0e\u307e\u3068\u3081<\/h3>\n
\n\t

\u4eca\u56de\u306f\u3001MMU\u3092\u64cd\u4f5c\u3059\u308b\u305f\u3081\u306eAPI\u306b\u3064\u3044\u3066\u3054\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002<\/p>\n

\u5177\u4f53\u7684\u306b\u306f\u3054\u7d39\u4ecb\u3057\u307e\u305b\u3093\u3067\u3057\u305f\u304c\u3001DMA\u306b\u3088\u308b\u30c7\u30fc\u30bf\u8ee2\u9001\u3092\u884c\u3046\u969b\u3082\u3053\u308c\u3089\u306eAPI\u306f\u91cd\u8981\u3067\u3059\u3002
\n\u610f\u56f3\u3059\u308b\u4eee\u60f3\u30a2\u30c9\u30ec\u30b9\u306b\u5bfe\u3059\u308b\u7269\u7406\u30a2\u30c9\u30ec\u30b9\u304c\u3069\u3053\u306b\u914d\u7f6e\u3055\u308c\u3066\u3044\u308b\u306e\u304b\u3092\u77e5\u3089\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093
\n\u305d\u306e\u3088\u3046\u306a\u6642\u306fSOLID_MEM_VA2PA()\u95a2\u6570\u3092\u4f7f\u3063\u3066\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002
\n\u305d\u308c\u306b\u3001\u305d\u3082\u305d\u3082\u30ad\u30e3\u30c3\u30b7\u30e5\u3068\u95a2\u4fc2\u306a\u3044\u6240\u3067\u7269\u7406\u30a2\u30c9\u30ec\u30b9\u3067\u52d5\u4f5c\u3059\u308bDMA\u306b\u3088\u308b\u30c7\u30fc\u30bf\u8ee2\u9001\u3068\u3001\u4eee\u60f3\u30a2\u30c9\u30ec\u30b9\u3067\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u6709\u52b9\u3067\u3042\u308b\u3068\u3053\u308d\u3067\u52d5\u4f5c\u3059\u308bCPU\u304c\u540c\u3058\u30e1\u30e2\u30ea\u3092\u4f7f\u3046\u306e\u3067\u3059\u304b\u3089\u3001\u5f53\u7136\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u7ba1\u7406\u3082\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002
\n\u4f8b\u3048\u3070\u3001\u5fc5\u8981\u306a\u6642\u306bSOLID_MEM_CACHE_Clean()\u95a2\u6570\u7b49\u3067\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3068\u30e1\u30e2\u30ea\u3092\u4e00\u65e6\u540c\u671f\u3055\u305b\u305f\u308a\u3057\u307e\u3059\u3002
\n\u3053\u306e\u3088\u3046\u306b\u3001\u672c\u8a18\u4e8b\u3067\u3054\u7d39\u4ecb\u3057\u305fAPI\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u30b7\u30fc\u30f3\u3067\u4fbf\u5229\u306b\u6d3b\u8e8d\u3057\u3066\u304f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u305d\u308c\u3068\u3001\u3082\u3046\u4e00\u70b9\u66f8\u304b\u305b\u3066\u304f\u3060\u3055\u3044\u3002
\n\u5b9f\u306f\u3053\u306e\uff13\u7ae0\u306e\u5b9f\u9a13\u3092\u3059\u308b\u306b\u3042\u305f\u308a\u3001\u4e00\u5ea6\u3082Cortex A\u306e\u30c7\u30d0\u30a4\u30b9\u30de\u30cb\u30e5\u30a2\u30eb\u3092\u898b\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002
\nMMU\u304c\u6301\u3064\u4fbf\u5229\u306a\u6a5f\u80fd\u3092\u4f7f\u304a\u3046\u3068\u3057\u3066\u3082\u3001\u8a2d\u5b9a\u3092\u9593\u9055\u3046\u3068\u52d5\u4f5c\u3067\u304d\u306a\u304f\u306a\u308b\u3057\u3001\u306a\u304b\u306a\u304b\u7c21\u5358\u306b\u4f7f\u304a\u3046\u3068\u3059\u3079\u304d\u3082\u306e\u3058\u3083\u306a\u3044\u3001\u3068\u601d\u3063\u3066\u3044\u307e\u3057\u305f\u3002
\n\u3057\u304b\u3057OS\u306eAPI\u3068\u3057\u3066\u6301\u3063\u3066\u3044\u3066\u3053\u3093\u306a\u306b\u7c21\u5358\u306b\u4f7f\u3048\u308b\u306e\u306a\u3089\u3001\u30e1\u30e2\u30ea\u4fdd\u8b77\u7b49\u3001\u4f7f\u3063\u3066\u307f\u305f\u3044\u7528\u9014\u306f\u51fa\u3066\u304d\u307e\u3059\u306d\u3002
\n\u5927\u8888\u88df\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u7720\u3063\u3066\u3044\u305fMMU\u306e\u53ef\u80fd\u6027\u306e\u6249\u3092\u4e00\u3064\u958b\u3051\u305f\u3088\u3046\u306a\u611f\u899a\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n

\u6b21\u56de\u306f\u3001SOLID\u3067\u4f7f\u3048\u308b\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0OS\u306b\u3064\u3044\u3066\u3054\u7d39\u4ecb\u3059\u308b\u4e88\u5b9a\u3067\u3059\u3002<\/p>\n

 <\/p>\n<\/div>\n<\/div><\/div><\/div><\/div>

<\/div><\/div>
<\/div><\/div>
<\/div><\/div>
<\/div><\/div>
<\/div><\/div>
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<\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

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