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Spinlock save cpu flags

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This commit is contained in:
Kamil Kowalczyk
2026-03-12 22:48:34 +01:00
parent 19793e9126
commit 4760818118
50 changed files with 704 additions and 461 deletions
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18
kernel/irq/irq.c
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@@ -14,6 +14,8 @@ static struct rb_node_link* irq_tree = NULL;
static spin_lock_t irqs_lock = SPIN_LOCK_INIT;
bool irq_attach (irq_func_t func, void* arg, uint32_t irq_num) {
uint64_t fiq;
struct irq* irq = malloc (sizeof (*irq));
if (irq == NULL) {
return false;
@@ -23,29 +25,33 @@ bool irq_attach (irq_func_t func, void* arg, uint32_t irq_num) {
irq->arg = arg;
irq->irq_num = irq_num;
spin_lock (&irqs_lock);
spin_lock (&irqs_lock, &fiq);
rbtree_insert (struct irq, &irq_tree, &irq->irq_tree_link, irq_tree_link, irq_num);
spin_unlock (&irqs_lock);
spin_unlock (&irqs_lock, fiq);
return true;
}
void irq_detach (uint32_t irq_num) {
uint64_t fiq;
struct irq* irq = irq_find (irq_num);
spin_lock (&irqs_lock);
spin_lock (&irqs_lock, &fiq);
rbtree_delete (&irq_tree, &irq->irq_tree_link);
spin_unlock (&irqs_lock);
spin_unlock (&irqs_lock, fiq);
free (irq);
}
struct irq* irq_find (uint32_t irq_num) {
uint64_t fiq;
struct irq* irq = NULL;
spin_lock (&irqs_lock);
spin_lock (&irqs_lock, &fiq);
rbtree_find (struct irq, &irq_tree, irq_num, irq, irq_tree_link, irq_num);
spin_unlock (&irqs_lock);
spin_unlock (&irqs_lock, fiq);
return irq;
}