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| Rev 787 | Rev 1100 | ||
|---|---|---|---|
| Line 49... | Line 49... | ||
| 49 | #ifdef CONFIG_DEBUG_SPINLOCK |
49 | #ifdef CONFIG_DEBUG_SPINLOCK |
| 50 | sl->name = name; |
50 | sl->name = name; |
| 51 | #endif |
51 | #endif |
| 52 | } |
52 | } |
| 53 | 53 | ||
| 54 | #ifdef CONFIG_DEBUG_SPINLOCK |
- | |
| 55 | /** Lock spinlock |
54 | /** Lock spinlock |
| 56 | * |
55 | * |
| 57 | * Lock spinlock. |
56 | * Lock spinlock. |
| 58 | * This version has limitted ability to report |
57 | * This version has limitted ability to report |
| 59 | * possible occurence of deadlock. |
58 | * possible occurence of deadlock. |
| 60 | * |
59 | * |
| 61 | * @param sl Pointer to spinlock_t structure. |
60 | * @param sl Pointer to spinlock_t structure. |
| 62 | */ |
61 | */ |
| - | 62 | #ifdef CONFIG_DEBUG_SPINLOCK |
|
| 63 | void spinlock_lock(spinlock_t *sl) |
63 | void spinlock_lock_debug(spinlock_t *sl) |
| 64 | { |
64 | { |
| 65 | count_t i = 0; |
65 | count_t i = 0; |
| 66 | char *symbol; |
66 | char *symbol; |
| 67 | bool deadlock_reported = false; |
67 | bool deadlock_reported = false; |
| 68 | 68 | ||
| Line 85... | Line 85... | ||
| 85 | 85 | ||
| 86 | /* |
86 | /* |
| 87 | * Prevent critical section code from bleeding out this way up. |
87 | * Prevent critical section code from bleeding out this way up. |
| 88 | */ |
88 | */ |
| 89 | CS_ENTER_BARRIER(); |
89 | CS_ENTER_BARRIER(); |
| 90 | - | ||
| 91 | } |
- | |
| 92 | - | ||
| 93 | #else |
- | |
| 94 | - | ||
| 95 | /** Lock spinlock |
- | |
| 96 | * |
- | |
| 97 | * Lock spinlock. |
- | |
| 98 | * |
- | |
| 99 | * @param sl Pointer to spinlock_t structure. |
- | |
| 100 | */ |
- | |
| 101 | void spinlock_lock(spinlock_t *sl) |
- | |
| 102 | { |
- | |
| 103 | preemption_disable(); |
- | |
| 104 | - | ||
| 105 | /* |
- | |
| 106 | * Each architecture has its own efficient/recommended |
- | |
| 107 | * implementation of spinlock. |
- | |
| 108 | */ |
- | |
| 109 | spinlock_arch(&sl->val); |
- | |
| 110 | - | ||
| 111 | /* |
- | |
| 112 | * Prevent critical section code from bleeding out this way up. |
- | |
| 113 | */ |
- | |
| 114 | CS_ENTER_BARRIER(); |
- | |
| 115 | } |
90 | } |
| 116 | #endif |
91 | #endif |
| 117 | 92 | ||
| 118 | /** Lock spinlock conditionally |
93 | /** Lock spinlock conditionally |
| 119 | * |
94 | * |
| Line 141... | Line 116... | ||
| 141 | preemption_enable(); |
116 | preemption_enable(); |
| 142 | 117 | ||
| 143 | return rc; |
118 | return rc; |
| 144 | } |
119 | } |
| 145 | 120 | ||
| 146 | /** Unlock spinlock |
- | |
| 147 | * |
- | |
| 148 | * Unlock spinlock. |
- | |
| 149 | * |
- | |
| 150 | * @param sl Pointer to spinlock_t structure. |
- | |
| 151 | */ |
- | |
| 152 | void spinlock_unlock(spinlock_t *sl) |
- | |
| 153 | { |
- | |
| 154 | ASSERT(atomic_get(&sl->val) != 0); |
- | |
| 155 | - | ||
| 156 | /* |
- | |
| 157 | * Prevent critical section code from bleeding out this way down. |
- | |
| 158 | */ |
- | |
| 159 | CS_LEAVE_BARRIER(); |
- | |
| 160 | - | ||
| 161 | atomic_set(&sl->val,0); |
- | |
| 162 | preemption_enable(); |
- | |
| 163 | } |
- | |
| 164 | - | ||
| 165 | #endif |
121 | #endif |