[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) 2000-2003 by Embedded and Real-Time Systems Laboratory
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| 7 | * Toyohashi Univ. of Technology, JAPAN
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| 8 | * Copyright (C) 2000-2003 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 |
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| 53 | /*
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| 54 | * ããã»ããµä¾åã¢ã¸ã¥ã¼ã«ï¼MIPS3ç¨ï¼
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| 55 | */
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| 56 |
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| 57 | #include "jsp_kernel.h"
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| 58 | #include "check.h"
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| 59 | #include "task.h"
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| 60 |
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| 61 | /*
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| 62 | * å²è¾¼ã¿ãã³ãã©ï¼å²è¾¼ã¿ãã¹ã¯ã®æ¬ä¼¼ãã¼ãã«
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| 63 | */
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| 64 | INT_TABLE int_table[ TMAX_ALL_INTNO ];
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| 65 |
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| 66 | /*
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| 67 | * ä¾å¤ãã³ãã©ã®æ¬ä¼¼ãã¼ãã«
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| 68 | */
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| 69 | FP exc_table[ TMAX_CORE_EXCNO ];
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| 70 |
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| 71 | /*
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| 72 | * ããã»ããµä¾åã®åæå
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| 73 | */
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| 74 | void cpu_initialize() {
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| 75 |
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| 76 | int i;
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| 77 |
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| 78 | /* å²è¾¼ã¿ãã³ãã©ï¼å²è¾¼ã¿ãã¹ã¯ã®æ¬ä¼¼ãã¼ãã«åæå */
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| 79 | for( i = 0; i < TMAX_ALL_INTNO; i++ ) {
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| 80 | define_inh( i, (FP) &cpu_experr );
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| 81 | }
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| 82 |
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| 83 | /* ä¾å¤ãã¯ã¿ã®æ¬ä¼¼ãã¼ãã«åæå */
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| 84 | for( i = 0; i < TMAX_CORE_EXCNO; i++ ) {
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| 85 | define_exc( i, (FP) &cpu_experr );
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| 86 | }
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| 87 |
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| 88 | }
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| 89 |
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| 90 | /*
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| 91 | * ããã»ããµä¾åã®çµäºå¦ç
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| 92 | */
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| 93 | void cpu_terminate() {
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| 94 | }
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| 95 |
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| 96 | /*
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| 97 | * å¾®å°æéå¾
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| 98 | ã¡
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| 99 | */
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| 100 | void sil_dly_nse(UINT dlytim) {
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| 101 |
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| 102 | /* $2 : v0, $3 : v1 */
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| 103 | Asm(" move $2, %0" :: "r"(dlytim) );
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| 104 | Asm(" li $3, %0" :: "g"(SIL_DLY_TIM1) );
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| 105 |
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| 106 | Asm(" sub $2, $2, $3"); /* v0 -= v1 (dlytim -= SIL_DLY_TIM1) */
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| 107 | Asm(" blez $2, sil_dly_nse_2"); /* v0 <= 0 ãªããªã¿ã¼ã³ */
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| 108 |
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| 109 | Asm(" li $3, %0" :: "g"(SIL_DLY_TIM2) );
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| 110 |
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| 111 | Asm("sil_dly_nse_1:");
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| 112 | Asm(" sub $2, $2, $3"); /* v0 -= v1 (dlytim -= SIL_DLY_TIM2) */
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| 113 | Asm(" bgtz $2, sil_dly_nse_1"); /* v0 > 0 ãªãã«ã¼ã */
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| 114 |
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| 115 | Asm("sil_dly_nse_2:");
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| 116 | }
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| 117 |
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| 118 | #ifdef SUPPORT_CHG_IPM
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| 119 |
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| 120 | /*
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| 121 | * å²è¾¼ã¿ãã¹ã¯ã®å¤æ´
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| 122 | *
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| 123 | * å²è¾¼ã¿ãã¹ã¯ã¯ãã¿ã¹ã¯ãã£ã¹ãããã«ãã£ã¦ãæ°ããå®è¡ç¶æ
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| 124 | ã«ãªã£ãã¿ã¹ã¯ã«
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| 125 | * å¼ãç¶ãããããã®ãããã¿ã¹ã¯ãå®è¡ä¸ã«ãå¥ã®ã¿ã¹ã¯ã«ãã£ã¦å²è¾¼ã¿ãã¹ã¯ã
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| 126 | * å¤æ´ãããå ´åããããJSPã«ã¼ãã«ã§ã¯ãå²è¾¼ã¿ãã¹ã¯ã®å¤æ´ã¯ã¿ã¹ã¯ä¾å¤å¦ç
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| 127 | * ã«ã¼ãã³ã«ãã£ã¦ãèµ·ããããããã«ãã£ã¦æ±ããé£ãããªãç¶æ³ã¯å°ãªãã¨æã
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| 128 | * ãããå²è¾¼ã¿ãã¹ã¯ã®å¤ã«ãã£ã¦ã¿ã¹ã¯ãã£ã¹ããããç¦æ¢ãããå ´åã«ã¯ã
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| 129 | * dis_dsp ãä½µç¨ããã°ããã
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| 130 | * MIPS3ã¿ã¼ã²ããã§ã¯ãMIPS3ã³ã¢ã®å²è¾¼ã¿ãã¹ã¯ã ãã§ãªããå²è¾¼ã¿ã³ã³ããã¼ã©
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| 131 | * ã®å²è¾¼ã¿ã³ã³ããã¼ã©ãæ±ã£ã¦ããã®ã§æ³¨æã
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| 132 | */
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| 133 |
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| 134 | SYSCALL ER chg_ipm(IPM ipm) {
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| 135 |
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| 136 | ER ercd;
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| 137 |
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| 138 | LOG_CHG_IPM_ENTER(ipm);
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| 139 | CHECK_TSKCTX_UNL();
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| 140 | CHECK_IPM(ipm);
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| 141 |
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| 142 | t_lock_cpu();
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| 143 | cpu_set_ipm( ipm.core ); /* MIPS3ã³ã¢ã®å²è¾¼ã¿ãã¹ã¯ã®è¨å® */
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| 144 | icu_set_ipm( &(ipm.icu) ); /* å¤é¨å²è¾¼ã¿ã³ã³ããã¼ã©ã®å²è¾¼ã¿ãã¹ã¯
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| 145 | ã®è¨å® */
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| 146 | ercd = E_OK;
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| 147 | t_unlock_cpu();
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| 148 |
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| 149 | exit:
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| 150 | LOG_CHG_IPM_LEAVE(ercd);
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| 151 | return(ercd);
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| 152 | }
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| 153 |
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| 154 | /*
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| 155 | * å²è¾¼ã¿ãã¹ã¯ã®åç
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| 156 | §
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| 157 | */
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| 158 | SYSCALL ER get_ipm(IPM *p_ipm) {
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| 159 |
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| 160 | ER ercd;
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| 161 |
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| 162 | LOG_GET_IPM_ENTER(p_ipm);
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| 163 | CHECK_TSKCTX_UNL();
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| 164 |
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| 165 | t_lock_cpu();
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| 166 | p_ipm->core = cpu_get_ipm(); /* MIPS3ã³ã¢ã®å²è¾¼ã¿ãã¹ã¯åç
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| 167 | § */
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| 168 | icu_get_ipm(&(p_ipm->icu)); /* å¤é¨å²è¾¼ã¿ã³ã³ããã¼ã©ã®å²è¾¼ã¿ãã¹ã¯
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| 169 | ã®åç
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| 170 | § */
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| 171 | ercd = E_OK;
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| 172 | t_unlock_cpu();
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| 173 |
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| 174 | exit:
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| 175 | LOG_GET_IPM_LEAVE(ercd, *p_ipm);
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| 176 | return(ercd);
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| 177 | }
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| 178 |
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| 179 | #endif /* SUPPORT_CHG_IPM */
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| 180 |
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| 181 | /*============================================================================*/
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| 182 | /* å
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| 183 | ±éããã¥ã¡ã³ãã«ã¯ãªããç¬èªã®é¨å */
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| 184 |
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| 185 | /*
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| 186 | * ãã³ãã©ãç»é²ããã¦ããªãå²è¾¼ã¿ã»ä¾å¤ãçºçããã¨å¼ã³åºããã
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| 187 | */
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| 188 | void cpu_experr( EXCSTACK *sp, UW SR, UW CR) {
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| 189 |
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| 190 | syslog_0(LOG_EMERG, "Interrupt/Exception error occurs.");
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| 191 |
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| 192 | syslog_1(LOG_EMERG, "PC(EPC;CP0_r14) = 0x%08x",
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| 193 | sp->CP0_EPC);
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| 194 | syslog_2(LOG_EMERG, "SR(Status;CP0_r12) = 0x%08x CR(Cause;CP0_r13) = 0x%08x",
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| 195 | SR, CR); /* SRã§ããsp->CP0_Statusã§ãå¯ */
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| 196 | syslog_3(LOG_EMERG, "at(r1 ) = %08x v0(r2 ) = %08x v1(r3 ) = %08x",
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| 197 | sp->at, sp->v0, sp->v1);
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| 198 | syslog_4(LOG_EMERG, "a0(r4 ) = %08x a1(r5 ) = %08x a2(r6 ) = %08x a3(r7 ) = %08x",
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| 199 | sp->a0, sp->a1, sp->a2, sp->a3);
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| 200 | syslog_4(LOG_EMERG, "t0(r8 ) = %08x t1(r9 ) = %08x t2(r10) = %08x t3(r11) = %08x",
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| 201 | sp->t0, sp->t1, sp->t2, sp->t3);
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| 202 | syslog_4(LOG_EMERG, "t4(r12) = %08x t5(r13) = %08x t6(r14) = %08x t7(r15) = %08x",
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| 203 | sp->t4, sp->t5, sp->t6, sp->t7);
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| 204 | syslog_2(LOG_EMERG, "t8(r24) = %08x t9(r25) = %08x",
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| 205 | sp->t8, sp->t9);
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| 206 | syslog_2(LOG_EMERG, "HI = %08x LO = %08x",
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| 207 | sp->hi, sp->lo);
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| 208 | syslog_4(LOG_EMERG, "gp(r28) = %08x sp(r29) = %08x fp(r30) = %08x ra(r31) = %08x",
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| 209 | sp->gp, sp->sp, sp->fp, sp->ra);
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| 210 | while(1);
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| 211 | }
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| 212 |
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| 213 | /*
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| 214 | * ã¡ã¢ãªãããã¯æä½ã©ã¤ãã©ãªï¼ãªã³ã¯ã¹ã¯ãªããå
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| 215 | ã§ä½¿ç¨ï¼
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| 216 | * (ItIsããã®æµç¨)
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| 217 | *
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| 218 | * 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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| 219 | * 使ã£ãæ¹ãå¹çãè¯ãå¯è½æ§ãããï¼
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| 220 | */
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| 221 | VP _dummy_memcpy(VP dest, VP src, UINT len) {
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| 222 |
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| 223 | VB *d = dest;
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| 224 | VB *s = src;
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| 225 |
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| 226 | while (len-- > 0) {
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| 227 | *d++ = *s++;
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| 228 | }
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| 229 |
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| 230 | return(dest);
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| 231 | }
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