[302] | 1 | /*
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[306] | 2 | * TOPPERS Software
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| 3 | * Toyohashi Open Platform for Embedded Real-Time Systems
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[302] | 4 | *
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[305] | 5 | * Copyright (C) 2006-2016 by Embedded and Real-Time Systems Laboratory
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[302] | 6 | * Graduate School of Information Science, Nagoya Univ., JAPAN
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| 7 | *
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| 8 | * ä¸è¨èä½æ¨©è
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| 9 | ã¯ï¼ä»¥ä¸ã®(1)ã(4)ã®æ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§
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| 10 | * ã¢ï¼æ¬ã½ããã¦ã§ã¢ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹
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| 11 | * å¤ã»åé
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| 12 | å¸ï¼ä»¥ä¸ï¼å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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| 13 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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| 14 | * 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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| 15 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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| 16 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 17 | * ç¨ã§ããå½¢ã§åé
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| 18 | å¸ããå ´åã«ã¯ï¼åé
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| 19 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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| 20 | * è
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| 21 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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| 22 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 23 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 24 | * ç¨ã§ããªãå½¢ã§åé
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| 25 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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| 26 | * ã¨ï¼
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| 27 | * (a) åé
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| 28 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 29 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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| 30 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 31 | * (b) åé
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| 32 | å¸ã®å½¢æ
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| 33 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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| 34 | * å ±åãããã¨ï¼
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| 35 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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| 36 | * 害ãããï¼ä¸è¨èä½æ¨©è
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[306] | 37 | ããã³TOPPERSããã¸ã§ã¯ããå
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[302] | 38 | 責ãããã¨ï¼
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| 39 | * ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®ã¦ã¼ã¶ã¾ãã¯ã¨ã³ãã¦ã¼ã¶ããã®ãããªãç
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| 40 | * ç±ã«åºã¥ãè«æ±ãããï¼ä¸è¨èä½æ¨©è
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| 41 | ããã³TOPPERSããã¸ã§ã¯ãã
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| 42 | * å
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| 43 | 責ãããã¨ï¼
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| 44 | *
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| 45 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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| 46 | ã
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| 47 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ç¹å®ã®ä½¿ç¨ç®ç
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| 48 | * ã«å¯¾ããé©åæ§ãå«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§
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| 49 | * ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ã
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| 50 | * ã®è²¬ä»»ãè² ããªãï¼
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| 51 | *
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| 52 | * $Id: gic_kernel_impl.c 714 2016-03-31 05:52:19Z ertl-hiro $
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| 53 | */
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| 54 |
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| 55 | /*
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| 56 | * ã«ã¼ãã«ã®å²è¾¼ã¿ã³ã³ããã¼ã©ä¾åé¨ï¼GICç¨ï¼
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| 57 | */
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| 58 |
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| 59 | #include "kernel_impl.h"
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| 60 | #include "interrupt.h"
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| 61 | #include <sil.h>
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| 62 | #include "arm.h"
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| 63 |
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| 64 | /*
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| 65 | * CPUã¤ã³ã¿ãã§ã¼ã¹ã®æä½
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| 66 | */
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| 67 |
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| 68 | /*
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| 69 | * CPUã¤ã³ã¿ãã§ã¼ã¹ã®åæå
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| 70 | */
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| 71 | void
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| 72 | gicc_initialize(void)
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| 73 | {
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| 74 | /*
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| 75 | * CPUã¤ã³ã¿ãã§ã¼ã¹ããã£ã¹ã¨ã¼ãã«
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| 76 | */
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| 77 | sil_wrw_mem(GICC_CTLR, GICC_CTLR_DISABLE);
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| 78 |
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| 79 | /*
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| 80 | * å²è¾¼ã¿åªå
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| 81 | 度ãã¹ã¯ãæä½åªå
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| 82 | 度ã«è¨å®
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| 83 | */
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| 84 | gicc_set_priority((GIC_PRI_LEVEL - 1) << GIC_PRI_SHIFT);
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| 85 |
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| 86 | /*
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| 87 | * å²è¾¼ã¿åªå
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| 88 | 度ã®å
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| 89 | ¨ãããæå¹ã«
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| 90 | */
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| 91 | sil_wrw_mem(GICC_BPR, 0U);
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| 92 |
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| 93 | /*
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| 94 | * ã¢ã¯ãã£ããªå²è¾¼ã¿ãããã°ï¼EOIã«ããã¯ãªã¢ãã
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| 95 | */
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| 96 | sil_wrw_mem(GICC_EOIR, sil_rew_mem(GICC_IAR));
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| 97 |
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| 98 | /*
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| 99 | * CPUã¤ã³ã¿ãã§ã¼ã¹ãã¤ãã¼ãã«
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| 100 | */
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| 101 | #ifdef TOPPERS_SAFEG_SECURE
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| 102 | sil_wrw_mem(GICC_CTLR, (GICC_CTLR_FIQEN|GICC_CTLR_ENABLEGRP1
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| 103 | |GICC_CTLR_ENABLEGRP0));
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| 104 | #else /* TOPPERS_SAFEG_SECURE */
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| 105 | sil_wrw_mem(GICC_CTLR, GICC_CTLR_ENABLE);
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| 106 | #endif /* TOPPERS_SAFEG_SECURE */
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| 107 | }
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| 108 |
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| 109 | /*
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| 110 | * CPUã¤ã³ã¿ãã§ã¼ã¹ã®çµäºå¦ç
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| 111 | */
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| 112 | void
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| 113 | gicc_terminate(void)
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| 114 | {
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| 115 | sil_wrw_mem(GICC_CTLR, GICC_CTLR_DISABLE);
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| 116 | }
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| 117 |
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| 118 | /*
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| 119 | * ãã£ã¹ããªãã¥ã¼ã¿ã®æä½
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[306] | 120 | */
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[302] | 121 |
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| 122 | /*
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| 123 | * ãã£ã¹ããªãã¥ã¼ã¿ã®åæå
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| 124 | */
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| 125 | void
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| 126 | gicd_initialize(void)
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| 127 | {
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[306] | 128 | int i;
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[302] | 129 |
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| 130 | /*
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| 131 | * ãã£ã¹ããªãã¥ã¼ã¿ããã£ã¹ã¨ã¼ãã«
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| 132 | */
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| 133 | sil_wrw_mem(GICD_CTLR, GICD_CTLR_DISABLE);
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| 134 |
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[306] | 135 | #ifdef TOPPERS_SAFEG_SECURE
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[302] | 136 | /*
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| 137 | * ãã¹ã¦ã®å²è¾¼ã¿ãã°ã«ã¼ã1ï¼IRQï¼ã«è¨å®
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| 138 | */
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| 139 | for (i = 0; i < (GIC_TNUM_INTNO + 31) / 32; i++) {
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| 140 | sil_wrw_mem(GICD_IGROUPR(i), 0xffffffffU);
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| 141 | }
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[306] | 142 | #endif /* TOPPERS_SAFEG_SECURE */
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[302] | 143 |
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| 144 | /*
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| 145 | * ãã¹ã¦ã®å²è¾¼ã¿ãç¦æ¢
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| 146 | */
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| 147 | for (i = 0; i < (GIC_TNUM_INTNO + 31) / 32; i++) {
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| 148 | sil_wrw_mem(GICD_ICENABLER(i), 0xffffffffU);
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[306] | 149 | }
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[302] | 150 |
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| 151 | /*
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| 152 | * ãã¹ã¦ã®å²è¾¼ã¿ãã³ãã£ã³ã°ãã¯ãªã¢
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| 153 | */
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| 154 | for (i = 0; i < (GIC_TNUM_INTNO + 31) / 32; i++) {
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| 155 | sil_wrw_mem(GICD_ICPENDR(i), 0xffffffffU);
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[306] | 156 | }
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[305] | 157 |
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[302] | 158 | /*
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[305] | 159 | * ãã¹ã¦ã®å²è¾¼ã¿ãæä½åªå
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[302] | 160 | 度ã«è¨å®
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[305] | 161 | */
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[302] | 162 | for (i = 0; i < (GIC_TNUM_INTNO + 3) / 4; i++){
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| 163 | sil_wrw_mem(GICD_IPRIORITYR(i), 0xffffffffU);
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| 164 | }
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| 165 |
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| 166 | /*
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| 167 | * ãã¹ã¦ã®å
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| 168 | ±æããªãã§ã©ã«å²è¾¼ã¿ã®ã¿ã¼ã²ãããããã»ããµ0ã«è¨å®
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| 169 | */
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| 170 | for (i = GIC_INTNO_SPI0 / 4; i < (GIC_TNUM_INTNO + 3) / 4; i++) {
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| 171 | sil_wrw_mem(GICD_ITARGETSR(i), 0x01010101U);
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| 172 | }
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| 173 |
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| 174 | /*
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| 175 | * ãã¹ã¦ã®ããªãã§ã©ã«å²è¾¼ã¿ãã¬ãã«ããªã¬ã«è¨å®
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| 176 | */
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| 177 | for (i = GIC_INTNO_PPI0 / 16; i < (GIC_TNUM_INTNO + 15) / 16; i++) {
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| 178 | #ifdef GIC_ARM11MPCORE
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[306] | 179 | sil_wrw_mem(GICD_ICFGR(i), 0x55555555U);
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| 180 | #else /* GIC_ARM11MPCORE */
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[302] | 181 | sil_wrw_mem(GICD_ICFGR(i), 0x00000000U);
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| 182 | #endif /* GIC_ARM11MPCORE */
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| 183 | }
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| 184 |
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| 185 | /*
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| 186 | * ãã£ã¹ããªãã¥ã¼ã¿ãã¤ãã¼ãã«
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| 187 | */
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| 188 | sil_wrw_mem(GICD_CTLR, GICD_CTLR_ENABLE);
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| 189 | }
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| 190 |
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| 191 | /*
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| 192 | * ãã£ã¹ããªãã¥ã¼ã¿ã®çµäºå¦ç
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| 193 | */
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| 194 | void
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| 195 | gicd_terminate(void)
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| 196 | {
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| 197 | sil_wrw_mem(GICD_CTLR, GICD_CTLR_DISABLE);
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| 198 | }
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| 199 |
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| 200 | #ifndef OMIT_GIC_INITIALIZE_INTERRUPT
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| 201 |
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| 202 | /*
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| 203 | * å²è¾¼ã¿è¦æ±ã©ã¤ã³ã®å±æ§ã®è¨å®
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| 204 | *
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| 205 | * ASPã«ã¼ãã«ã§ã®å©ç¨ãæ³å®ãã¦ï¼ãã©ã¡ã¼ã¿ã¨ã©ã¼ã¯ã¢ãµã¼ã·ã§ã³ã§ãã§ã
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| 206 | * ã¯ãã¦ããï¼
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| 207 | */
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| 208 | Inline void
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| 209 | config_int(INTNO intno, ATR intatr, PRI intpri)
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[305] | 210 | {
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[302] | 211 | assert(VALID_INTNO(intno));
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[305] | 212 | assert(TMIN_INTPRI <= intpri && intpri <= TMAX_INTPRI);
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[302] | 213 |
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[305] | 214 | /*
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[302] | 215 | * å²è¾¼ã¿ãç¦æ¢
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| 216 | *
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| 217 | * å²è¾¼ã¿ãåãä»ããã¾ã¾ï¼ã¬ãã«ããªã¬ï¼ã¨ãã¸ããªã¬ã®è¨å®ãï¼å²
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[305] | 218 | * è¾¼ã¿åªå
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[302] | 219 | 度ã®è¨å®ãè¡ãã®ã¯å±éºãªããï¼å²è¾¼ã¿å±æ§ã«ãããããï¼
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[305] | 220 | * ä¸æ¦ãã¹ã¯ããï¼
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[302] | 221 | */
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[305] | 222 | disable_int(intno);
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[302] | 223 |
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| 224 | /*
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| 225 | * å²è¾¼ã¿ãã³ã³ãã£ã®ã¥ã¬ã¼ã·ã§ã³
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| 226 | */
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| 227 | #ifdef TOPPERS_SAFEG_SECURE
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| 228 | gicd_config_group(intno, 1U);
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| 229 | #endif /* TOPPERS_SAFEG_SECURE */
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| 230 |
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| 231 | if ((intatr & TA_EDGE) != 0U) {
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| 232 | #ifdef GIC_ARM11MPCORE
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| 233 | gicd_config(intno, GICD_ICFGRn_EDGE|GICD_ICFGRn_1_N);
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| 234 | #else /* GIC_ARM11MPCORE */
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| 235 | gicd_config(intno, GICD_ICFGRn_EDGE);
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| 236 | #endif /* GIC_ARM11MPCORE */
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| 237 | clear_int(intno);
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| 238 | }
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| 239 | else {
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| 240 | #ifdef GIC_ARM11MPCORE
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| 241 | gicd_config(intno, GICD_ICFGRn_LEVEL|GICD_ICFGRn_1_N);
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| 242 | #else /* GIC_ARM11MPCORE */
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| 243 | gicd_config(intno, GICD_ICFGRn_LEVEL);
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| 244 | #endif /* GIC_ARM11MPCORE */
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| 245 | }
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| 246 |
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| 247 | /*
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| 248 | * å²è¾¼ã¿åªå
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| 249 | 度ã¨ã¿ã¼ã²ããããã»ããµãè¨å®
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| 250 | */
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| 251 | gicd_set_priority(intno, INT_IPM(intpri));
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| 252 | gicd_set_target(intno, 1U << arm_prc_index());
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[306] | 253 |
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| 254 | /*
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| 255 | * å²è¾¼ã¿ã許å¯
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| 256 | */
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| 257 | if ((intatr & TA_ENAINT) != 0U) {
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| 258 | enable_int(intno);
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| 259 | }
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| 260 | }
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| 261 |
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| 262 | /*
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| 263 | * å²è¾¼ã¿ç®¡çæ©è½ã®åæå
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| 264 | */
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| 265 | void
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| 266 | initialize_interrupt(void)
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| 267 | {
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| 268 | uint_t i;
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| 269 | const INTINIB *p_intinib;
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| 270 |
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| 271 | for (i = 0; i < tnum_cfg_intno; i++) {
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| 272 | p_intinib = &(intinib_table[i]);
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| 273 | config_int(p_intinib->intno, p_intinib->intatr, p_intinib->intpri);
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| 274 | }
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| 275 | }
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| 276 |
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| 277 | #endif /* OMIT_GIC_INITIALIZE_INTERRUPT */
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