[26] | 1 | /*
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| 2 | * TOPPERS/JSP Kernel
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| 3 | * Toyohashi Open Platform for Embedded Real-Time Systems/
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| 4 | * Just Standard Profile Kernel
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| 5 | *
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| 6 | * Copyright (C) 2000-2004 by Embedded and Real-Time Systems Laboratory
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| 7 | * Toyohashi Univ. of Technology, JAPAN
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| 8 | * Copyright (C) 2001-2004 by Industrial Technology Institute,
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| 9 | * Miyagi Prefectural Government, JAPAN
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| 10 | *
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| 11 | * ä¸è¨èä½æ¨©è
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| 12 | ã¯ï¼ä»¥ä¸ã® (1)ã(4) ã®æ¡ä»¶ãï¼Free Software Foundation
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| 13 | * ã«ãã£ã¦å
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| 14 | ¬è¡¨ããã¦ãã GNU General Public License ã® Version 2 ã«è¨
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| 15 | * è¿°ããã¦ããæ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§ã¢ï¼æ¬ã½ããã¦ã§ã¢
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| 16 | * ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹å¤ã»åé
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| 17 | å¸ï¼ä»¥ä¸ï¼
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| 18 | * å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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| 19 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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| 20 | * 権表示ï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãï¼ãã®ã¾ã¾ã®å½¢ã§ã½ã¼
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| 21 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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| 22 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 23 | * ç¨ã§ããå½¢ã§åé
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| 24 | å¸ããå ´åã«ã¯ï¼åé
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| 25 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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| 26 | * è
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| 27 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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| 28 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 29 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 30 | * ç¨ã§ããªãå½¢ã§åé
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| 31 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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| 32 | * ã¨ï¼
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| 33 | * (a) åé
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| 34 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 35 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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| 36 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 37 | * (b) åé
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| 38 | å¸ã®å½¢æ
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| 39 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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| 40 | * å ±åãããã¨ï¼
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| 41 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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| 42 | * 害ãããï¼ä¸è¨èä½æ¨©è
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| 43 | ããã³TOPPERSããã¸ã§ã¯ããå
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| 44 | 責ãããã¨ï¼
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| 45 | *
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| 46 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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| 47 | ã
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| 48 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ãã®é©ç¨å¯è½æ§ã
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| 49 | * å«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´
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| 50 | * æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ãã®è²¬ä»»ãè² ããªãï¼
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| 51 | *
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| 52 | * @(#) $Id: cpu_config.c,v 1.2 2004/10/07 17:10:56 honda Exp $
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| 53 | */
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| 54 |
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| 55 | /*
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| 56 | * ããã»ããµä¾åã¢ã¸ã¥ã¼ã«ï¼PowerPCç¨ï¼
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| 57 | *ãããããã«ã¼ãã«å
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| 58 | é¨ã§ä½¿ç¨ããå®ç¾©
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| 59 | *ããããããCè¨èªé¢æ°ã®å®ä½
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| 60 | */
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| 61 |
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| 62 | #include "jsp_kernel.h"
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| 63 | #include "check.h"
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| 64 | #include "task.h"
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| 65 | #include <sil.h>
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| 66 |
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| 67 |
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| 68 | /*
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| 69 | * å²è¾¼ã¿ãã³ãã©ï¼å²è¾¼ã¿ãã¹ã¯ã®æ¬ä¼¼ãã¼ãã«
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| 70 | */
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| 71 | FP int_table[TMAX_INTNO];
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| 72 |
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| 73 |
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| 74 | /*
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| 75 | * ä¾å¤ãã¯ã¿ã®æ¬ä¼¼ãã¼ãã«
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| 76 | */
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| 77 | FP exc_table[TMAX_EXCNO];
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| 78 |
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| 79 | /*
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| 80 | * ã¨ã©ã¼ã¡ãã»ã¼ã¸ã®ãã¼ã¿ãã¼ãã«
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| 81 | *
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| 82 | * ã¤ã³ããªã¡ã³ãã¼ã·ã§ã³åºæã®ä¾å¤0x1000ã¯ã«ã¼ãã«ãç¨æããåº
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| 83 | * å
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| 84 | ¥å£å¦çãçµç±ããªãã®ã§ããã®ãã¼ãã«ã®0x10çªç®ã使ç¨ããã
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| 85 | * ãã¨ã¯ãªãã
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| 86 | */
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| 87 | static const char *(exe_list[]) = {
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| 88 | "", /* 0x0 */
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| 89 | "System Reset", /* 0x1 */
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| 90 | "Machine Check", /* 0x2 */
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| 91 | "DSI", /* 0x3 */
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| 92 | "ISI", /* 0x4 */
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| 93 | "External Interrupt", /* 0x5 */
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| 94 | "Alignment", /* 0x6 */
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| 95 | "Program", /* 0x7 */
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| 96 | "Floating Point Unavailable", /* 0x8 */
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| 97 | "Decrementer", /* 0x9 */
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| 98 | "Implement Exception 0xa00", /* 0xa */
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| 99 | "", /* 0xb */
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| 100 | "System Call", /* 0xc */
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| 101 | "Trace", /* 0xd */
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| 102 | "Floating Point Assist", /* 0xe */
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| 103 | };
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| 104 |
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| 105 |
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| 106 | /*
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| 107 | * ããã»ããµä¾åã®åæå
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| 108 | */
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| 109 | void
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| 110 | cpu_initialize()
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| 111 | {
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| 112 | INHNO i;
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| 113 | EXCNO j;
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| 114 |
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| 115 | /*
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| 116 | * å²è¾¼ã¿æ¬ä¼¼ãã¯ã¿ãã¼ãã«åæå
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| 117 | *
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| 118 | *ãã0ã§åæåãã¦æªç»é²æ±ãã«ãã¦ããã®ã§ã
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| 119 | *ããå²è¾¼ã¿å¦çã®ICUä¾åé¨åPROC_ICUã§ã¯ã
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| 120 | *ããæªç»é²ã®å ´åã®å¦çãå
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| 121 | ¥ãã¦ãããã¨
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| 122 | */
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| 123 | for( i = 0; i < TMAX_INTNO; i++ ) {
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| 124 | define_inh( i, (FP)0 );
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| 125 | }
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| 126 |
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| 127 | /* CPUä¾å¤æ¬ä¼¼ãã¯ã¿ãã¼ãã«åæå */
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| 128 | for( j = 0; j < TMAX_EXCNO; j++ ) {
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| 129 | define_exc( j, (FP)&no_reg_exception );
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| 130 | }
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| 131 | }
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| 132 |
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| 133 | /*
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| 134 | * ããã»ããµä¾åã®çµäºå¦ç
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| 135 | */
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| 136 | void
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| 137 | cpu_terminate()
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| 138 | {
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| 139 | }
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| 140 |
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| 141 | #ifdef SUPPORT_CHG_IPM
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| 142 |
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| 143 | /*
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| 144 | * å²è¾¼ã¿ãã¹ã¯ã®å¤æ´
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| 145 | *
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| 146 | * PowerPCã³ã¢ã«ã¯IPMããªããå²è¾¼ã¿ã³ã³ããã¼ã©ã®IPMã®ã¿æ±ã£ã¦
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| 147 | * ããç¹ã«æ³¨æ
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| 148 | *
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| 149 | * chg_ipm ã使ã£ã¦ NMI以å¤ã®ãã¹ã¦ã®å²è¾¼ã¿ãç¦æ¢ã§ãããã©ãã
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| 150 | * ã¯å²è¾¼ã¿ã³ã³ããã¼ã©ã«ä¾åããã
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| 151 | * NMI以å¤ã®ãã¹ã¦ã®å²è¾¼ã¿ãç¦æ¢ãããå ´åã«ã¯ï¼loc_cpuã«ããCPU
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| 152 | * ããã¯ç¶æ
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| 153 | ã«ããã°ããï¼
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| 154 | * IPMã«ãã£ã¦ä¸é¨ã®å²è¾¼ã¿ããã¹ã¯ããã¦ããæã«ãï¼ã¿ã¹ã¯ãã£ã¹
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| 155 | * ãããã¯ä¿çãããªãï¼IPMã¯ï¼ã¿ã¹ã¯ãã£ã¹ãããã«ãã£ã¦ï¼æ°ã
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| 156 | * ãå®è¡ç¶æ
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| 157 | ã«ãªã£ãã¿ã¹ã¯ã¸å¼ãç¶ãããï¼ãã®ããï¼ã¿ã¹ã¯ãå®
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| 158 | * è¡ä¸ã«ï¼å¥ã®ã¿ã¹ã¯ã«ãã£ã¦ IPMãå¤æ´ãããå ´åãããï¼JSPã«ã¼
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| 159 | * ãã«ã§ã¯ï¼IPMã®å¤æ´ã¯ã¿ã¹ã¯ä¾å¤å¦çã«ã¼ãã³ã«ãã£ã¦ãèµ·ãããï¼
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| 160 | * ããã«ãã£ã¦æ±ããé£ãããªãç¶æ³ã¯å°ãªãã¨æãããï¼IPM ã®å¤
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| 161 | * ã«ãã£ã¦ã¿ã¹ã¯ãã£ã¹ããããç¦æ¢ãããå ´åã«ã¯ï¼dis_dspãä½µç¨
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| 162 | * ããã°ããï¼
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| 163 | */
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| 164 | SYSCALL ER
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| 165 | chg_ipm(IPM ipm)
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| 166 | {
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| 167 | ER ercd;
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| 168 |
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| 169 | LOG_CHG_IPM_ENTER(ipm); /* ICUä¾å */
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| 170 | CHECK_TSKCTX_UNL();
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| 171 | CHECK_IPM(ipm); /* ICUä¾å */
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| 172 |
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| 173 | t_lock_cpu();
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| 174 | CHG_IPM(ipm); /* ICUä¾å */
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| 175 | ercd = E_OK;
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| 176 | t_unlock_cpu();
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| 177 |
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| 178 | exit:
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| 179 | LOG_CHG_IPM_LEAVE(ercd);
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| 180 | return(ercd);
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| 181 | }
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| 182 |
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| 183 | /*
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| 184 | * å²è¾¼ã¿ãã¹ã¯ã®åç
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| 185 | §
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| 186 | */
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| 187 | SYSCALL ER
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| 188 | get_ipm(IPM *p_ipm)
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| 189 | {
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| 190 | ER ercd;
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| 191 |
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| 192 | LOG_GET_IPM_ENTER(p_ipm); /* ICUä¾å */
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| 193 | CHECK_TSKCTX_UNL();
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| 194 |
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| 195 | t_lock_cpu();
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| 196 | GET_IPM(p_ipm); /* ICUä¾å */
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| 197 | ercd = E_OK;
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| 198 | t_unlock_cpu();
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| 199 |
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| 200 | exit:
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| 201 | LOG_GET_IPM_LEAVE(ercd, *p_ipm); /* ICUä¾å */
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| 202 | return(ercd);
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| 203 | }
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| 204 |
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| 205 | #endif /* SUPPORT_CHG_IPM */
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| 206 |
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| 207 |
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| 208 | /* CPUä¾å¤ï¼å²è¾¼ã¿çºçæã®ã¹ã¿ãã¯ä¸ã®ãã¼ã¿è¡¨ç¤º */
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| 209 | void syslog_data_on_stack(EXCSTACK *sp)
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| 210 | {
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| 211 | syslog(LOG_EMERG, "PC = 0x%08x SR = 0x%08x",
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| 212 | sp->srr0, sp->srr1);
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| 213 |
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| 214 | syslog(LOG_EMERG, "r0 = 0x%08x ", sp->r0);
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| 215 | syslog(LOG_EMERG, "r3 = 0x%08x r4 = 0x%08x r5 = 0x%08x",
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| 216 | sp->r3, sp->r4, sp->r5);
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| 217 | syslog(LOG_EMERG, "r6 = 0x%08x r7 = 0x%08x r8 = 0x%08x",
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| 218 | sp->r6, sp->r7, sp->r8);
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| 219 | syslog(LOG_EMERG, "r9 = 0x%08x r10 = 0x%08x r11 = 0x%08x",
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| 220 | sp->r9, sp->r10, sp->r11);
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| 221 | syslog(LOG_EMERG, "r12 = 0x%08x ", sp->r12);
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| 222 |
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| 223 |
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| 224 | syslog(LOG_EMERG, "LR = 0x%08x CTR = 0x%08x",
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| 225 | sp->lr, sp->ctr );
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| 226 | syslog(LOG_EMERG, "CR = 0x%08x XER = 0x%08x",
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| 227 | sp->cr, sp->xer );
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| 228 | }
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| 229 |
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| 230 |
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| 231 | /*
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| 232 | * ç»é²ããã¦ããªãä¾å¤ãçºçããã¨å¼ã³åºããã
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| 233 | */
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| 234 |
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| 235 | void no_reg_exception(EXCSTACK *sp)
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| 236 | {
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| 237 | syslog(LOG_EMERG, "Exception error occurs.");
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| 238 | syslog(LOG_EMERG, " [0x%02x]: %s",
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| 239 | sp->exc_no, exe_list[sp->exc_no]);
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| 240 |
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| 241 | /* ã¹ã¿ãã¯ä¸ã®ãã¼ã¿ã®è¡¨ç¤º */
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| 242 | syslog_data_on_stack(sp);
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| 243 |
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| 244 | while(1);
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| 245 | }
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| 246 |
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| 247 |
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| 248 | /*
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| 249 | * ã¡ã¢ãªãããã¯æä½ã©ã¤ãã©ãª
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| 250 | * (ItIsããã®æµç¨)
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| 251 | *
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| 252 | * é¢æ°ã®ä»æ§ã¯ï¼ANSI C ã©ã¤ãã©ãªã®ä»æ§ã¨åãï¼æ¨æºã©ã¤ãã©ãªã®ãã®ã
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| 253 | * 使ã£ãæ¹ãå¹çãè¯ãå¯è½æ§ãããï¼
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| 254 | *
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| 255 | */
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| 256 | VP
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| 257 | _dummy_memcpy(VP dest, VP src, UINT len)
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| 258 | {
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| 259 | VB *d = (VB *)dest;
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| 260 | VB *s = (VB *)src;
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| 261 |
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| 262 | while (len-- > 0) {
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| 263 | *d++ = *s++;
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| 264 | }
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| 265 | return(dest);
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| 266 | }
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| 267 |
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| 268 | /* end of file */
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