| 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: arm64.h 714 2018-05-29 05:52:19Z saito $
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| 55 | */
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| 56 | #ifndef TOPPERS_ARM64_H
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| 57 | #define TOPPERS_ARM64_H
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| 58 |
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| 59 | /*
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| 60 | * PSTATE
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| 61 | */
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| 62 | #define AARCH64_PSTATE_N (1 << 31)
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| 63 | #define AARCH64_PSTATE_Z (1 << 30)
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| 64 | #define AARCH64_PSTATE_C (1 << 29)
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| 65 | #define AARCH64_PSTATE_V (1 << 28)
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| 66 | #define AARCH64_PSTATE_SS (1 << 21)
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| 67 | #define AARCH64_PSTATE_IL (1 << 20)
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| 68 | #define AARCH64_PSTATE_D (1 << 9)
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| 69 | #define AARCH64_PSTATE_A (1 << 8)
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| 70 | #define AARCH64_PSTATE_I (1 << 7)
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| 71 | #define AARCH64_PSTATE_F (1 << 6)
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| 72 | #define AARCH64_PSTATE_MODE4 (1 << 4)
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| 73 | #define AARCH64_PSTATE_MODE_MASK (AARCH64_PSTATE_MODE4 - 1)
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| 74 |
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| 75 | /*
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| 76 | * DAIF
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| 77 | */
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| 78 | #define AARCH64_DAIF_FIQ UINT64_C(1)
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| 79 | #define AARCH64_DAIF_IRQ UINT64_C(2)
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| 80 |
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| 81 | #ifndef TOPPERS_MACRO_ONLY
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| 82 |
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| 83 | /*
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| 84 | * DAIFã®è¨å®ããã³ç¶æ
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| 85 | åç
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| 86 | §
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| 87 | */
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| 88 | Inline uint32_t
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| 89 | aarch64_get_daif(void){
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| 90 | uint32_t daif;
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| 91 | Asm ("mrs %0, daif\n\t":"=r"(daif));
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| 92 | return daif;
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| 93 | }
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| 94 |
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| 95 | Inline void
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| 96 | aarch64_set_daif(uint32_t daif) {
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| 97 |
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| 98 | Asm ("msr daif, %0\n\t" : : "r"(daif));
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| 99 | }
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| 100 |
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| 101 | /*
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| 102 | * DAIF.F ããã³ DAIF.I ã®ã»ãã/ã¯ãªã¢
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| 103 | */
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| 104 | Inline void
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| 105 | aarch64_set_daif_if(void) {
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| 106 | Asm ("msr daifset, %0\n\t"::"i"(AARCH64_DAIF_IRQ | AARCH64_DAIF_FIQ));
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| 107 | }
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| 108 |
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| 109 | Inline void
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| 110 | aarch64_clear_daif_if(void) {
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| 111 | Asm ("msr daifclr, %0\n\t"::"i"(AARCH64_DAIF_IRQ | AARCH64_DAIF_FIQ));
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| 112 | }
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| 113 |
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| 114 | /*
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| 115 | * DAIF.I ã®ç¶æ
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| 116 | åç
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| 117 | §
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| 118 | */
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| 119 | Inline bool_t
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| 120 | aarch64_sense_daif_irq(void) {
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| 121 | uint32_t daif;
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| 122 | bool_t state;
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| 123 |
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| 124 | daif = aarch64_get_daif();
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| 125 |
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| 126 | if(daif & AARCH64_PSTATE_I) {
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| 127 | state = true;
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| 128 | }
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| 129 | else {
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| 130 | state = false;
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| 131 | }
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| 132 |
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| 133 | return state;
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| 134 | }
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| 135 |
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| 136 | /*
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| 137 | * DAIF.F ã®ç¶æ
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| 138 | åç
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| 139 | §
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| 140 | */
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| 141 | Inline bool_t
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| 142 | aarch64_sense_daif_fiq(void) {
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| 143 | uint32_t daif;
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| 144 | bool_t state;
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| 145 |
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| 146 | daif = aarch64_get_daif();
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| 147 |
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| 148 | if(daif & AARCH64_PSTATE_F) {
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| 149 | state = true;
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| 150 | }
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| 151 | else {
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| 152 | state = false;
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| 153 | }
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| 154 |
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| 155 | return state;
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| 156 | }
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| 157 |
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| 158 |
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| 159 | #endif /* TOPPERS_MACRO_ONLY */
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| 160 | #endif /* TOPPERS_ARM64_H */
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