1 | /*
|
---|
2 | * TOPPERS Software
|
---|
3 | * Toyohashi Open Platform for Embedded Real-Time Systems
|
---|
4 | *
|
---|
5 | * Copyright (C) 2006-2016 by Embedded and Real-Time Systems Laboratory
|
---|
6 | * Graduate School of Information Science, Nagoya Univ., JAPAN
|
---|
7 | * Copyright (C) 2018 by Naoki Saito
|
---|
8 | * Nagoya Municipal Industrial Research Institute, JAPAN
|
---|
9 | *
|
---|
10 | * ä¸è¨èä½æ¨©è
|
---|
11 | ã¯ï¼ä»¥ä¸ã®(1)ã(4)ã®æ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§
|
---|
12 | * ã¢ï¼æ¬ã½ããã¦ã§ã¢ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹
|
---|
13 | * å¤ã»åé
|
---|
14 | å¸ï¼ä»¥ä¸ï¼å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
|
---|
15 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
|
---|
16 | * 権表示ï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãï¼ãã®ã¾ã¾ã®å½¢ã§ã½ã¼
|
---|
17 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
|
---|
18 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
|
---|
19 | * ç¨ã§ããå½¢ã§åé
|
---|
20 | å¸ããå ´åã«ã¯ï¼åé
|
---|
21 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
|
---|
22 | * è
|
---|
23 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
|
---|
24 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
|
---|
25 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
|
---|
26 | * ç¨ã§ããªãå½¢ã§åé
|
---|
27 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
|
---|
28 | * ã¨ï¼
|
---|
29 | * (a) åé
|
---|
30 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
|
---|
31 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
|
---|
32 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
|
---|
33 | * (b) åé
|
---|
34 | å¸ã®å½¢æ
|
---|
35 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
|
---|
36 | * å ±åãããã¨ï¼
|
---|
37 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
|
---|
38 | * 害ãããï¼ä¸è¨èä½æ¨©è
|
---|
39 | ããã³TOPPERSããã¸ã§ã¯ããå
|
---|
40 | 責ãããã¨ï¼
|
---|
41 | * ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®ã¦ã¼ã¶ã¾ãã¯ã¨ã³ãã¦ã¼ã¶ããã®ãããªãç
|
---|
42 | * ç±ã«åºã¥ãè«æ±ãããï¼ä¸è¨èä½æ¨©è
|
---|
43 | ããã³TOPPERSããã¸ã§ã¯ãã
|
---|
44 | * å
|
---|
45 | 責ãããã¨ï¼
|
---|
46 | *
|
---|
47 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
|
---|
48 | ã
|
---|
49 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ç¹å®ã®ä½¿ç¨ç®ç
|
---|
50 | * ã«å¯¾ããé©åæ§ãå«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§
|
---|
51 | * ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ã
|
---|
52 | * ã®è²¬ä»»ãè² ããªãï¼
|
---|
53 | *
|
---|
54 | * $Id: arm64.h 714 2018-05-29 05:52:19Z saito $
|
---|
55 | */
|
---|
56 | #ifndef TOPPERS_ARM64_H
|
---|
57 | #define TOPPERS_ARM64_H
|
---|
58 |
|
---|
59 | /*
|
---|
60 | * PSTATE
|
---|
61 | */
|
---|
62 | #define AARCH64_PSTATE_N (1 << 31)
|
---|
63 | #define AARCH64_PSTATE_Z (1 << 30)
|
---|
64 | #define AARCH64_PSTATE_C (1 << 29)
|
---|
65 | #define AARCH64_PSTATE_V (1 << 28)
|
---|
66 | #define AARCH64_PSTATE_SS (1 << 21)
|
---|
67 | #define AARCH64_PSTATE_IL (1 << 20)
|
---|
68 | #define AARCH64_PSTATE_D (1 << 9)
|
---|
69 | #define AARCH64_PSTATE_A (1 << 8)
|
---|
70 | #define AARCH64_PSTATE_I (1 << 7)
|
---|
71 | #define AARCH64_PSTATE_F (1 << 6)
|
---|
72 | #define AARCH64_PSTATE_MODE4 (1 << 4)
|
---|
73 | #define AARCH64_PSTATE_MODE_MASK (AARCH64_PSTATE_MODE4 - 1)
|
---|
74 |
|
---|
75 | /*
|
---|
76 | * DAIF
|
---|
77 | */
|
---|
78 | #define AARCH64_DAIF_FIQ UINT64_C(1)
|
---|
79 | #define AARCH64_DAIF_IRQ UINT64_C(2)
|
---|
80 |
|
---|
81 | #ifndef TOPPERS_MACRO_ONLY
|
---|
82 |
|
---|
83 | /*
|
---|
84 | * DAIFã®è¨å®ããã³ç¶æ
|
---|
85 | åç
|
---|
86 | §
|
---|
87 | */
|
---|
88 | Inline uint32_t
|
---|
89 | aarch64_get_daif(void){
|
---|
90 | uint32_t daif;
|
---|
91 | Asm ("mrs %0, daif\n\t":"=r"(daif));
|
---|
92 | return daif;
|
---|
93 | }
|
---|
94 |
|
---|
95 | Inline void
|
---|
96 | aarch64_set_daif(uint32_t daif) {
|
---|
97 |
|
---|
98 | Asm ("msr daif, %0\n\t" : : "r"(daif));
|
---|
99 | }
|
---|
100 |
|
---|
101 | /*
|
---|
102 | * DAIF.F ããã³ DAIF.I ã®ã»ãã/ã¯ãªã¢
|
---|
103 | */
|
---|
104 | Inline void
|
---|
105 | aarch64_set_daif_if(void) {
|
---|
106 | Asm ("msr daifset, %0\n\t"::"i"(AARCH64_DAIF_IRQ | AARCH64_DAIF_FIQ));
|
---|
107 | }
|
---|
108 |
|
---|
109 | Inline void
|
---|
110 | aarch64_clear_daif_if(void) {
|
---|
111 | Asm ("msr daifclr, %0\n\t"::"i"(AARCH64_DAIF_IRQ | AARCH64_DAIF_FIQ));
|
---|
112 | }
|
---|
113 |
|
---|
114 | /*
|
---|
115 | * DAIF.I ã®ç¶æ
|
---|
116 | åç
|
---|
117 | §
|
---|
118 | */
|
---|
119 | Inline bool_t
|
---|
120 | aarch64_sense_daif_irq(void) {
|
---|
121 | uint32_t daif;
|
---|
122 | bool_t state;
|
---|
123 |
|
---|
124 | daif = aarch64_get_daif();
|
---|
125 |
|
---|
126 | if(daif & AARCH64_PSTATE_I) {
|
---|
127 | state = true;
|
---|
128 | }
|
---|
129 | else {
|
---|
130 | state = false;
|
---|
131 | }
|
---|
132 |
|
---|
133 | return state;
|
---|
134 | }
|
---|
135 |
|
---|
136 | /*
|
---|
137 | * DAIF.F ã®ç¶æ
|
---|
138 | åç
|
---|
139 | §
|
---|
140 | */
|
---|
141 | Inline bool_t
|
---|
142 | aarch64_sense_daif_fiq(void) {
|
---|
143 | uint32_t daif;
|
---|
144 | bool_t state;
|
---|
145 |
|
---|
146 | daif = aarch64_get_daif();
|
---|
147 |
|
---|
148 | if(daif & AARCH64_PSTATE_F) {
|
---|
149 | state = true;
|
---|
150 | }
|
---|
151 | else {
|
---|
152 | state = false;
|
---|
153 | }
|
---|
154 |
|
---|
155 | return state;
|
---|
156 | }
|
---|
157 |
|
---|
158 |
|
---|
159 | #endif /* TOPPERS_MACRO_ONLY */
|
---|
160 | #endif /* TOPPERS_ARM64_H */
|
---|