[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) 2005 by Embedded and Real-Time Systems Laboratory
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| 9 | * Graduate School of Information Science, Nagoya Univ., JAPAN
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| 10 | * Copyright (C) 2007 by KURUSUGAWA Electronics Industry Inc, JAPAN
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| 11 | * Copyright (C) 2008 by Takahisa Yokota
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| 12 | *
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| 13 | * ä¸è¨èä½æ¨©è
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| 14 | ã¯ï¼ä»¥ä¸ã® (1)ã(4) ã®æ¡ä»¶ãï¼Free Software Foundation
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| 15 | * ã«ãã£ã¦å
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| 16 | ¬è¡¨ããã¦ãã GNU General Public License ã® Version 2 ã«è¨
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| 17 | * è¿°ããã¦ããæ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§ã¢ï¼æ¬ã½ããã¦ã§ã¢
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| 18 | * ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹å¤ã»åé
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| 19 | å¸ï¼ä»¥ä¸ï¼
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| 20 | * å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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| 21 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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| 22 | * 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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| 23 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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| 24 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 25 | * ç¨ã§ããå½¢ã§åé
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| 26 | å¸ããå ´åã«ã¯ï¼åé
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| 27 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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| 28 | * è
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| 29 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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| 30 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 31 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 32 | * ç¨ã§ããªãå½¢ã§åé
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| 33 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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| 34 | * ã¨ï¼
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| 35 | * (a) åé
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| 36 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 37 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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| 38 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 39 | * (b) åé
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| 40 | å¸ã®å½¢æ
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| 41 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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| 42 | * å ±åãããã¨ï¼
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| 43 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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| 44 | * 害ãããï¼ä¸è¨èä½æ¨©è
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| 45 | ããã³TOPPERSããã¸ã§ã¯ããå
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| 46 | 責ãããã¨ï¼
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| 47 | *
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| 48 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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| 49 | ã
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| 50 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ãã®é©ç¨å¯è½æ§ã
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| 51 | * å«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´
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| 52 | * æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ãã®è²¬ä»»ãè² ããªãï¼
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| 53 | *
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| 54 | * @(#) $Id: cpu_config.c,v 1.10 2005/11/12 14:57:17 hiro Exp $
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| 55 | */
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| 56 |
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| 57 | /*
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| 58 | * ããã»ããµä¾åã¢ã¸ã¥ã¼ã«ï¼COLDFIREç¨ï¼
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| 59 | */
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| 60 |
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| 61 | #include "jsp_kernel.h"
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| 62 | #include "check.h"
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| 63 | #include "task.h"
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| 64 |
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| 65 | /*
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| 66 | * ã¿ã¹ã¯ã³ã³ããã¹ãã§ã®å²è¾¼ã¿ãã¹ã¯
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| 67 | */
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| 68 | #ifdef SUPPORT_CHG_IPM
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| 69 | UH task_intmask;
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| 70 | #endif /* SUPPORT_CHG_IPM */
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| 71 |
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| 72 | /*
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| 73 | * éã¿ã¹ã¯ã³ã³ããã¹ãã§ã®å²è¾¼ã¿ãã¹ã¯
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| 74 | */
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| 75 | UH int_intmask;
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| 76 |
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| 77 | /*
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| 78 | * å²è¾¼ã¿ï¼CPUä¾å¤ãã¹ãã«ã¦ã³ã¿
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| 79 | */
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| 80 | UW intnest;
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| 81 |
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| 82 | extern void board_leds_display (unsigned char number);
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| 83 | /*
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| 84 | * ããã»ããµä¾åã®åæå
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| 85 | */
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| 86 | void
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| 87 | cpu_initialize()
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| 88 | {
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| 89 | /*
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| 90 | * ã¿ã¹ã¯ã³ã³ããã¹ãã§ã®å²è¾¼ã¿ãã¹ã¯ã®åæå
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| 91 | */
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| 92 | #ifdef SUPPORT_CHG_IPM
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| 93 | task_intmask = 0x0000;
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| 94 | #endif /* SUPPORT_CHG_IPM */
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| 95 |
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| 96 | /*
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| 97 | * å²è¾¼ã¿ï¼CPUä¾å¤ãã¹ãã«ã¦ã³ã¿ã®åæå
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| 98 | */
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| 99 | intnest = 1u;
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| 100 |
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| 101 | /*
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| 102 | * ä¾å¤ãã¯ã¿ãã¼ãã«ã®åæå
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| 103 | */
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| 104 | #ifdef KERNEL_HAS_A_VECTOR_TABLE
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| 105 | if ((UW)&vector_table != current_vbr()) {
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| 106 | set_vbr(vector_table);
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| 107 | }
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| 108 | #endif /* KERNEL_HAS_A_VECTOR_TABLE */
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| 109 | }
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| 110 |
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| 111 | /*
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| 112 | * ããã»ããµä¾åã®çµäºå¦ç
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| 113 | */
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| 114 | void
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| 115 | cpu_terminate()
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| 116 | {
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| 117 | #ifdef KERNEL_HAS_A_VECTOR_TABLE
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| 118 | if ((UW)&vector_table != EXCVT_ORIG) {
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| 119 | set_vbr(EXCVT_ORIG);
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| 120 | }
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| 121 | #endif /* EXCVT_KERNEL */
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| 122 | }
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| 123 |
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| 124 | #ifdef SUPPORT_CHG_IPM
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| 125 |
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| 126 | /*
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| 127 | * å²è¾¼ã¿ãã¹ã¯ã®å¤æ´
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| 128 | *
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| 129 | * chg_ipm ã使ã£ã¦ IPM ã 7ï¼NMI 以å¤ã®ãã¹ã¦ã®å²è¾¼ã¿ãç¦æ¢ï¼ã«å¤æ´
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| 130 | * ãããã¨ã¯ã§ããªãï¼NMI 以å¤ã®ãã¹ã¦ã®å²è¾¼ã¿ãç¦æ¢ãããå ´åã«ã¯ï¼
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| 131 | * loc_cpu ã«ããCPUããã¯ç¶æ
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| 132 | ã«ããã°ããï¼
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| 133 | * IPM ã 0 以å¤ã®æã«ãï¼ã¿ã¹ã¯ãã£ã¹ãããã¯ä¿çãããªãï¼IPM ã¯ï¼
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| 134 | * ã¿ã¹ã¯ãã£ã¹ãããã«ãã£ã¦ï¼æ°ããå®è¡ç¶æ
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| 135 | ã«ãªã£ãã¿ã¹ã¯ã¸å¼ãç¶ã
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| 136 | * ããï¼ãã®ããï¼ã¿ã¹ã¯ãå®è¡ä¸ã«ï¼å¥ã®ã¿ã¹ã¯ã«ãã£ã¦ IPM ãå¤æ´ã
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| 137 | * ããå ´åãããï¼JSPã«ã¼ãã«ã§ã¯ï¼IPM ã®å¤æ´ã¯ã¿ã¹ã¯ä¾å¤å¦çã«ã¼ã
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| 138 | * ã³ã«ãã£ã¦ãèµ·ããã®ã§ï¼å¥ã®ã¿ã¹ã¯ã«ãã£ã¦ IPM ãå¤æ´ããããã¨ã«
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| 139 | * ãã£ã¦ï¼æ±ããé£ãããªãç¶æ³ã¯å°ãªãã¨æãããï¼IPM ã®å¤ã«ãã£ã¦ã¿
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| 140 | * ã¹ã¯ãã£ã¹ããããç¦æ¢ãããå ´åã«ã¯ï¼dis_dsp ãä½µç¨ããã°ããï¼
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| 141 | */
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| 142 | SYSCALL ER
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| 143 | chg_ipm(IPM ipm)
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| 144 | {
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| 145 | ER ercd;
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| 146 |
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| 147 | LOG_CHG_IPM_ENTER(ipm);
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| 148 | CHECK_TSKCTX_UNL();
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| 149 | CHECK_PAR(0 <= ipm && ipm <= 6);
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| 150 |
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| 151 | t_lock_cpu();
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| 152 | task_intmask = (ipm << 8);
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| 153 | ercd = E_OK;
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| 154 | t_unlock_cpu();
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| 155 |
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| 156 | exit:
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| 157 | LOG_CHG_IPM_LEAVE(ercd);
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| 158 | return(ercd);
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| 159 | }
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| 160 |
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| 161 | /*
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| 162 | * å²è¾¼ã¿ãã¹ã¯ã®åç
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| 163 | §
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| 164 | */
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| 165 | SYSCALL ER
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| 166 | get_ipm(IPM *p_ipm)
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| 167 | {
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| 168 | ER ercd;
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| 169 |
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| 170 | LOG_GET_IPM_ENTER(p_ipm);
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| 171 | CHECK_TSKCTX_UNL();
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| 172 |
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| 173 | t_lock_cpu();
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| 174 | *p_ipm = (task_intmask >> 8);
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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_GET_IPM_LEAVE(ercd, *p_ipm);
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| 180 | return(ercd);
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| 181 | }
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| 182 |
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| 183 | #endif /* SUPPORT_CHG_IPM */
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| 184 |
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| 185 | /*
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| 186 | * ç»é²ããã¦ããªãä¾å¤ãçºçããã¨å¼ã³åºããã
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| 187 | */
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| 188 | void cpu_experr(EXCSTACK *sp)
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| 189 | {
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| 190 | syslog(LOG_EMERG, "Exception error occurs.");
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| 191 |
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| 192 | syslog(LOG_EMERG, "PC = 0x%08x SR = 0x%08x",
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| 193 | sp->pc, sp->sr);
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| 194 |
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| 195 | syslog(LOG_EMERG, "d0 = 0x%08x d1 = 0x%08x d2 = 0x%08x",
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| 196 | sp->d0, sp->d1, sp->d2);
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| 197 | syslog(LOG_EMERG, "d3 = 0x%08x d4 = 0x%08x d5 = 0x%08x",
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| 198 | sp->d3, sp->d4, sp->d5);
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| 199 | syslog(LOG_EMERG, "d6 = 0x%08x d7 = 0x%08x a0 = 0x%08x",
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| 200 | sp->d6, sp->d7, sp->a0);
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| 201 | syslog(LOG_EMERG, "a2 = 0x%08x a3 = 0x%08x a3 = 0x%08x",
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| 202 | sp->a1, sp->a2, sp->a3);
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| 203 | syslog(LOG_EMERG, "a4 = 0x%08x a5 = 0x%08x a6 = 0x%08x",
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| 204 | sp->a4, sp->a5, sp->a6);
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| 205 | /* ä¾å¤çºçç´åã®ã¹ã¿ãã¯ãã¤ã³ã¿ã®å¤ */
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| 206 | syslog(LOG_EMERG, "a7 = 0x%08x", (sp->a7)+2*4);
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| 207 |
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| 208 | while(1);
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| 209 | }
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| 210 |
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