[353] | 1 | /*
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| 2 | * TOPPERS Software
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| 3 | * Toyohashi Open Platform for Embedded Real-Time Systems
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| 4 | *
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| 5 | * Copyright (C) 2006-2016 by Embedded and Real-Time Systems Laboratory
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| 6 | * Graduate School of Information Science, Nagoya Univ., JAPAN
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| 7 | * Copyright (C) 2018 by Naoki Saito
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| 8 | * Nagoya Municipal Industrial Research Institute, JAPAN
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| 9 | *
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| 10 | * ä¸è¨èä½æ¨©è
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| 11 | ã¯ï¼ä»¥ä¸ã®(1)ã(4)ã®æ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§
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| 12 | * ã¢ï¼æ¬ã½ããã¦ã§ã¢ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹
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| 13 | * å¤ã»åé
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| 14 | å¸ï¼ä»¥ä¸ï¼å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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| 15 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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| 16 | * 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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| 17 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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| 18 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 19 | * ç¨ã§ããå½¢ã§åé
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| 20 | å¸ããå ´åã«ã¯ï¼åé
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| 21 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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| 22 | * è
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| 23 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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| 24 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 25 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 26 | * ç¨ã§ããªãå½¢ã§åé
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| 27 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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| 28 | * ã¨ï¼
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| 29 | * (a) åé
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| 30 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 31 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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| 32 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 33 | * (b) åé
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| 34 | å¸ã®å½¢æ
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| 35 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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| 36 | * å ±åãããã¨ï¼
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| 37 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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| 38 | * 害ãããï¼ä¸è¨èä½æ¨©è
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| 39 | ããã³TOPPERSããã¸ã§ã¯ããå
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| 40 | 責ãããã¨ï¼
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| 41 | * ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®ã¦ã¼ã¶ã¾ãã¯ã¨ã³ãã¦ã¼ã¶ããã®ãããªãç
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| 42 | * ç±ã«åºã¥ãè«æ±ãããï¼ä¸è¨èä½æ¨©è
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| 43 | ããã³TOPPERSããã¸ã§ã¯ãã
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| 44 | * å
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| 45 | 責ãããã¨ï¼
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| 46 | *
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| 47 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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| 48 | ã
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| 49 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ç¹å®ã®ä½¿ç¨ç®ç
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| 50 | * ã«å¯¾ããé©åæ§ãå«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§
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| 51 | * ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ã
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| 52 | * ã®è²¬ä»»ãè² ããªãï¼
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| 53 | *
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| 54 | * $Id: gic_config.h 714 2018-05-29 05:52:19Z saito $
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| 55 | */
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| 56 |
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| 57 | /*
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| 58 | * ã«ã¼ãã«ã®å²è¾¼ã¿ã³ã³ããã¼ã©ä¾åé¨ï¼GICç¨ï¼
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| 59 | *
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| 60 | * ãã®ããããã¡ã¤ã«ã¯ï¼target_config.hï¼ã¾ãã¯ï¼ããããã¤ã³ã¯ã«ã¼ã
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| 61 | * ããããã¡ã¤ã«ï¼ã®ã¿ããã¤ã³ã¯ã«ã¼ããããï¼
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| 62 | * ä»ã®ãã¡ã¤ã«ããç´æ¥ã¤ã³ã¯ã«ã¼ããã¦ã¯ãªããªãï¼
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| 63 | */
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| 64 |
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| 65 | #ifndef TOPPERS_GIC_KERNEL_IMPL_H
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| 66 | #define TOPPERS_GIC_KERNEL_IMPL_H
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| 67 |
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| 68 | #include <sil.h>
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| 69 | #include "arm64.h"
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| 70 |
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| 71 | /*
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| 72 | * å²è¾¼ã¿çªå·ã®å®ç¾©
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| 73 | */
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| 74 | #define GIC_INTNO_PPI0 16U
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| 75 | #define GIC_INTNO_SPI0 32U
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| 76 |
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| 77 | /*
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| 78 | * å²è¾¼ã¿åªå
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| 79 | 度ã®æä½
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| 80 | *
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| 81 | * å²è¾¼ã¿åªå
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| 82 | 度ã®å
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| 83 | é¨è¡¨ç¾ã¯ï¼uint_tåã§è¡¨ãï¼0ãæé«åªå
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| 84 | 度ã§ï¼å¤ã大ã
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| 85 | * ãã»ã©åªå
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| 86 | 度ãä¸ãããã®ã¨ããï¼GICã®ã¬ã¸ã¹ã¿æ§æã¨æ´åãããããã«ï¼
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| 87 | * åªå
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| 88 | 度ã®æ®µæ°ã256段éã®æã«ãããã¦è¡¨ãï¼
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| 89 | */
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| 90 | #define GIC_PRI_LEVEL (TMAX_INTPRI - TMIN_INTPRI + 2)
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| 91 |
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| 92 | #if GIC_PRI_LEVEL == 16
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| 93 | #define GIC_PRI_SHIFT 4
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| 94 | #define GIC_PRI_MASK UINT_C(0x0f)
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| 95 | #elif GIC_PRI_LEVEL == 32
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| 96 | #define GIC_PRI_SHIFT 3
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| 97 | #define GIC_PRI_MASK UINT_C(0x1f)
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| 98 | #elif GIC_PRI_LEVEL == 64
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| 99 | #define GIC_PRI_SHIFT 2
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| 100 | #define GIC_PRI_MASK UINT_C(0x3f)
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| 101 | #elif GIC_PRI_LEVEL == 128
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| 102 | #define GIC_PRI_SHIFT 1
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| 103 | #define GIC_PRI_MASK UINT_C(0x7f)
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| 104 | #elif GIC_PRI_LEVEL == 256
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| 105 | #define GIC_PRI_SHIFT 0
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| 106 | #define GIC_PRI_MASK UINT_C(0xff)
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| 107 | #else
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| 108 | #error Invalid number of priority levels for GIC.
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| 109 | #endif /* GIC_PRI_LEVEL == 16 */
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| 110 |
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| 111 | /* å¤é¨è¡¨ç¾ã¸ã®å¤æ */
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| 112 | #define EXT_IPM(pri) \
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| 113 | (((PRI)((pri) >> GIC_PRI_SHIFT)) - (GIC_PRI_LEVEL - 1))
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| 114 |
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| 115 | /* å
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| 116 | é¨è¡¨ç¾ã¸ã®å¤æ */
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| 117 | #define INT_IPM(ipm) \
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| 118 | (((uint_t)((ipm) + (GIC_PRI_LEVEL - 1))) << GIC_PRI_SHIFT)
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| 119 |
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| 120 | /*
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| 121 | * GICã¬ã¸ã¹ã¿ã®ã¢ãã¬ã¹ãå®ç¾©ããããã®ãã¯ã
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| 122 | *
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| 123 | * GICã¬ã¸ã¹ã¿ã®ã¢ãã¬ã¹ãï¼ã¢ã»ã³ããªè¨èªãããåç
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| 124 | §ã§ããããã«ããã
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| 125 | * ãã®ãã¯ãï¼
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| 126 | */
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| 127 | #ifndef GIC_REG
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| 128 | #define GIC_REG(base, offset) ((uint32_t *)(uintptr_t)((base) + (offset ## U)))
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| 129 | #endif /* GIC_REG */
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| 130 |
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| 131 | /*
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| 132 | * CPUã¤ã³ã¿ãã§ã¼ã¹é¢é£ã®å®ç¾©
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| 133 | */
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| 134 | #define GICC_CTLR GIC_REG(GICC_BASE, 0x00)
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| 135 | #define GICC_PMR GIC_REG(GICC_BASE, 0x04)
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| 136 | #define GICC_BPR GIC_REG(GICC_BASE, 0x08)
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| 137 | #define GICC_IAR GIC_REG(GICC_BASE, 0x0C)
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| 138 | #define GICC_EOIR GIC_REG(GICC_BASE, 0x10)
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| 139 | #define GICC_RPR GIC_REG(GICC_BASE, 0x14)
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| 140 | #define GICC_HPIR GIC_REG(GICC_BASE, 0x18)
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| 141 |
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| 142 | /*
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| 143 | * CPUã¤ã³ã¿ãã§ã¼ã¹å¶å¾¡ã¬ã¸ã¹ã¿ï¼GICC_CTLRï¼ã®è¨å®å¤
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| 144 | * ï¼GICv1ã§ã»ãã¥ãªãã£æ¡å¼µããªãå ´åï¼
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| 145 | */
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| 146 | #define GICC_CTLR_DISABLE UINT_C(0x00)
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| 147 | #define GICC_CTLR_ENABLE UINT_C(0x01)
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| 148 |
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| 149 | /*
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| 150 | * ãã£ã¹ããªãã¥ã¼ã¿é¢é£ã®å®ç¾©
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| 151 | */
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| 152 | #define GICD_CTLR GIC_REG(GICD_BASE, 0x000)
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| 153 | #define GICD_TYPER GIC_REG(GICD_BASE, 0x004)
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| 154 | #define GICD_IIDR GIC_REG(GICD_BASE, 0x008)
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| 155 | #define GICD_IGROUPR(n) GIC_REG(GICD_BASE, 0x080 + (n) * 4)
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| 156 | #define GICD_ISENABLER(n) GIC_REG(GICD_BASE, 0x100 + (n) * 4)
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| 157 | #define GICD_ICENABLER(n) GIC_REG(GICD_BASE, 0x180 + (n) * 4)
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| 158 | #define GICD_ISPENDR(n) GIC_REG(GICD_BASE, 0x200 + (n) * 4)
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| 159 | #define GICD_ICPENDR(n) GIC_REG(GICD_BASE, 0x280 + (n) * 4)
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| 160 | #define GICD_ISACTIVER(n) GIC_REG(GICD_BASE, 0x300 + (n) * 4)
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| 161 | #define GICD_ICACTIVER(n) GIC_REG(GICD_BASE, 0x380 + (n) * 4)
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| 162 | #define GICD_IPRIORITYR(n) GIC_REG(GICD_BASE, 0x400 + (n) * 4)
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| 163 | #define GICD_ITARGETSR(n) GIC_REG(GICD_BASE, 0x800 + (n) * 4)
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| 164 | #define GICD_ICFGR(n) GIC_REG(GICD_BASE, 0xc00 + (n) * 4)
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| 165 | #define GICD_NSCAR(n) GIC_REG(GICD_BASE, 0xe00 + (n) * 4)
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| 166 | #define GICD_SGIR GIC_REG(GICD_BASE, 0xf00)
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| 167 | #define GICD_CPENDSGIR(n) GIC_REG(GICD_BASE, 0xf10 + (n) * 4)
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| 168 | #define GICD_SPENDSGIR(n) GIC_REG(GICD_BASE, 0xf20 + (n) * 4)
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| 169 |
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| 170 | /*
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| 171 | * ãã£ã¹ããªãã¥ã¼ã¿å¶å¾¡ã¬ã¸ã¹ã¿ï¼GICD_CTLRï¼ã®è¨å®å¤
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| 172 | */
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| 173 | #define GICD_CTLR_DISABLE UINT_C(0x00)
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| 174 | #define GICD_CTLR_ENABLE UINT_C(0x01)
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| 175 |
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| 176 | /*
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| 177 | * å²è¾¼ã¿ã³ã³ãã£ã®ã¥ã¬ã¼ã·ã§ã³ã¬ã¸ã¹ã¿ï¼GICD_ICFGRnï¼ã®è¨å®å¤
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| 178 | */
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| 179 | #define GICD_ICFGRn_LEVEL UINT_C(0x00)
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| 180 | #define GICD_ICFGRn_EDGE UINT_C(0x02)
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| 181 |
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| 182 | #ifndef TOPPERS_MACRO_ONLY
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| 183 |
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| 184 | /*
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| 185 | * CPUã¤ã³ã¿ãã§ã¼ã¹ã®æä½
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| 186 | */
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| 187 |
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| 188 | /*
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| 189 | * å²è¾¼ã¿åªå
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| 190 | 度ãã¹ã¯ãè¨å®ï¼priã¯å
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| 191 | é¨è¡¨ç¾ï¼
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| 192 | */
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| 193 | Inline void
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| 194 | gicc_set_priority(uint_t pri)
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| 195 | {
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| 196 | sil_wrw_mem(GICC_PMR, pri);
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| 197 | }
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| 198 |
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| 199 | /*
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| 200 | * å²è¾¼ã¿åªå
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| 201 | 度ãã¹ã¯ãåå¾ï¼å
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| 202 | é¨è¡¨ç¾ã§è¿ãï¼
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| 203 | */
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| 204 | Inline uint_t
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| 205 | gicc_get_priority(void)
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| 206 | {
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| 207 | return(sil_rew_mem(GICC_PMR));
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| 208 | }
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| 209 |
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| 210 | /*
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| 211 | * CPUã¤ã³ã¿ãã§ã¼ã¹ã®åæå
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| 212 | */
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| 213 | extern void gicc_initialize(void);
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| 214 |
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| 215 | /*
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| 216 | * CPUã¤ã³ã¿ãã§ã¼ã¹ã®çµäº
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| 217 | */
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| 218 | extern void gicc_terminate(void);
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| 219 |
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| 220 | /*
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| 221 | * ãã£ã¹ããªãã¥ã¼ã¿ã®æä½
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| 222 | */
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| 223 |
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| 224 | /*
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| 225 | * å²è¾¼ã¿ç¦æ¢ï¼å²è¾¼ã¿ã¤ãã¼ãã«ã®ã¯ãªã¢ï¼
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| 226 | */
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| 227 | Inline void
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| 228 | gicd_disable_int(INTNO intno)
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| 229 | {
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| 230 | sil_wrw_mem(GICD_ICENABLER(intno / 32), (1U << (intno % 32)));
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| 231 | }
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| 232 |
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| 233 | /*
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| 234 | * å²è¾¼ã¿è¨±å¯ï¼å²è¾¼ã¿ã¤ãã¼ãã«ã®ã»ããï¼
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| 235 | */
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| 236 | Inline void
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| 237 | gicd_enable_int(INTNO intno)
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| 238 | {
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| 239 | sil_wrw_mem(GICD_ISENABLER(intno / 32), (1U << (intno % 32)));
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| 240 | }
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| 241 |
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| 242 | /*
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| 243 | * å²è¾¼ã¿ãã³ãã£ã³ã°ã®ã¯ãªã¢
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| 244 | */
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| 245 | Inline void
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| 246 | gicd_clear_pending(INTNO intno)
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| 247 | {
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| 248 | sil_wrw_mem(GICD_ICPENDR(intno / 32), (1U << (intno % 32)));
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| 249 | }
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| 250 |
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| 251 | /*
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| 252 | * å²è¾¼ã¿ãã³ãã£ã³ã°ã®ã»ãã
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| 253 | */
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| 254 | Inline void
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| 255 | gicd_set_pending(INTNO intno)
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| 256 | {
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| 257 | sil_wrw_mem(GICD_ISPENDR(intno / 32), (1U << (intno % 32)));
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| 258 | }
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| 259 |
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| 260 | /*
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| 261 | * å²è¾¼ã¿ãã³ãã£ã³ã°ã®ãã§ãã¯
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| 262 | */
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| 263 | Inline bool_t
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| 264 | gicd_probe_pending(INTNO intno)
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| 265 | {
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| 266 | return((sil_rew_mem(GICD_ISPENDR(intno / 32)) & (1U << (intno % 32))) != 0U);
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| 267 | }
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| 268 |
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| 269 | /*
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| 270 | * å²è¾¼ã¿ã®ã³ã³ãã£ã°ã¬ã¼ã·ã§ã³
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| 271 | */
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| 272 | Inline void
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| 273 | gicd_config(INTNO intno, uint_t config)
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| 274 | {
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| 275 | uint_t shift = (intno % 16) * 2;
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| 276 | uint32_t reg;
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| 277 |
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| 278 | reg = sil_rew_mem(GICD_ICFGR(intno / 16));
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| 279 | reg &= ~(0x03U << shift);
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| 280 | reg |= (config << shift);
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| 281 | sil_wrw_mem(GICD_ICFGR(intno / 16), reg);
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| 282 | }
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| 283 |
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| 284 | /*
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| 285 | * å²è¾¼ã¿è¦æ±ã©ã¤ã³ã«å¯¾ããå²è¾¼ã¿åªå
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| 286 | 度ã®è¨å®ï¼priã¯å
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| 287 | é¨è¡¨ç¾ï¼
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| 288 | */
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| 289 | Inline void
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| 290 | gicd_set_priority(INTNO intno, uint_t pri)
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| 291 | {
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| 292 | uint_t shift = (intno % 4) * 8;
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| 293 | uint32_t reg;
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| 294 |
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| 295 | reg = sil_rew_mem(GICD_IPRIORITYR(intno / 4));
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| 296 | reg &= ~(0xffU << shift);
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| 297 | reg |= (pri << shift);
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| 298 | sil_wrw_mem(GICD_IPRIORITYR(intno / 4), reg);
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| 299 | }
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| 300 |
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| 301 | /*
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| 302 | * å²è¾¼ã¿ã¿ã¼ã²ããããã»ããµã®è¨å®
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| 303 | *
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| 304 | * prcsã¯ï¼ã¿ã¼ã²ããã¨ããããã»ããµã表ããããã®ãããæ¯è«çåã§æ
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| 305 | * å®ããï¼
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| 306 | * ããã»ããµ0 : 0x01
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| 307 | * ããã»ããµ1 : 0x02
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| 308 | * ããã»ããµ2 : 0x04
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| 309 | * ããã»ããµ3 : 0x08
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| 310 | */
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| 311 | Inline void
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| 312 | gicd_set_target(INTNO intno, uint_t prcs)
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| 313 | {
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| 314 | uint_t shift = (intno % 4) * 8;
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| 315 | uint32_t reg;
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| 316 |
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| 317 | reg = sil_rew_mem(GICD_ITARGETSR(intno / 4));
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| 318 | reg &= ~(0xffU << shift);
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| 319 | reg |= (prcs << shift);
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| 320 | sil_wrw_mem(GICD_ITARGETSR(intno / 4), reg);
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| 321 | }
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| 322 |
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| 323 | /*
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| 324 | * ãã£ã¹ããªãã¥ã¼ã¿ã®åæå
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| 325 | */
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| 326 | extern void gicd_initialize(void);
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| 327 |
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| 328 | /*
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| 329 | * ãã£ã¹ããªãã¥ã¼ã¿ã®çµäº
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| 330 | */
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| 331 | extern void gicd_terminate(void);
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| 332 |
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| 333 | /*
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| 334 | * ä¾å¤å
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| 335 | ¥å£ã®GICæä½ï¼gic_support.Sï¼
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| 336 | */
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| 337 | extern void gic_exc_entry(void);
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| 338 |
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| 339 | /*
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| 340 | * å²è¾¼ã¿å
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| 341 | ¥å£ã®GICæä½ï¼gic_support.Sï¼
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| 342 | */
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| 343 | extern void gic_int_entry(void);
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| 344 |
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| 345 |
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| 346 |
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| 347 | #endif /* TOPPERS_MACRO_ONLY */
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| 348 | #endif /* TOPPERS_GIC_KERNEL_IMPL_H */
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