summaryrefslogtreecommitdiffstats
path: root/kernel/irq/irqdomain.c
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/irq/irqdomain.c')
-rw-r--r--kernel/irq/irqdomain.c28
1 files changed, 21 insertions, 7 deletions
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 0bdef4fe92..3dd1c871e0 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -29,6 +29,7 @@ static int irq_domain_alloc_irqs_locked(struct irq_domain *domain, int irq_base,
unsigned int nr_irqs, int node, void *arg,
bool realloc, const struct irq_affinity_desc *affinity);
static void irq_domain_check_hierarchy(struct irq_domain *domain);
+static void irq_domain_free_one_irq(struct irq_domain *domain, unsigned int virq);
struct irqchip_fwid {
struct fwnode_handle fwnode;
@@ -448,7 +449,7 @@ struct irq_domain *irq_find_matching_fwspec(struct irq_fwspec *fwspec,
*/
mutex_lock(&irq_domain_mutex);
list_for_each_entry(h, &irq_domain_list, link) {
- if (h->ops->select && fwspec->param_count)
+ if (h->ops->select && bus_token != DOMAIN_BUS_ANY)
rc = h->ops->select(h, fwspec, bus_token);
else if (h->ops->match)
rc = h->ops->match(h, to_of_node(fwnode), bus_token);
@@ -858,8 +859,13 @@ unsigned int irq_create_fwspec_mapping(struct irq_fwspec *fwspec)
}
if (irq_domain_is_hierarchy(domain)) {
- virq = irq_domain_alloc_irqs_locked(domain, -1, 1, NUMA_NO_NODE,
- fwspec, false, NULL);
+ if (irq_domain_is_msi_device(domain)) {
+ mutex_unlock(&domain->root->mutex);
+ virq = msi_device_domain_alloc_wired(domain, hwirq, type);
+ mutex_lock(&domain->root->mutex);
+ } else
+ virq = irq_domain_alloc_irqs_locked(domain, -1, 1, NUMA_NO_NODE,
+ fwspec, false, NULL);
if (virq <= 0) {
virq = 0;
goto out;
@@ -914,7 +920,7 @@ void irq_dispose_mapping(unsigned int virq)
return;
if (irq_domain_is_hierarchy(domain)) {
- irq_domain_free_irqs(virq, 1);
+ irq_domain_free_one_irq(domain, virq);
} else {
irq_domain_disassociate(domain, virq);
irq_free_desc(virq);
@@ -1755,6 +1761,14 @@ void irq_domain_free_irqs(unsigned int virq, unsigned int nr_irqs)
irq_free_descs(virq, nr_irqs);
}
+static void irq_domain_free_one_irq(struct irq_domain *domain, unsigned int virq)
+{
+ if (irq_domain_is_msi_device(domain))
+ msi_device_domain_free_wired(domain, virq);
+ else
+ irq_domain_free_irqs(virq, 1);
+}
+
/**
* irq_domain_alloc_irqs_parent - Allocate interrupts from parent domain
* @domain: Domain below which interrupts must be allocated
@@ -1907,9 +1921,9 @@ static int irq_domain_alloc_irqs_locked(struct irq_domain *domain, int irq_base,
return -EINVAL;
}
-static void irq_domain_check_hierarchy(struct irq_domain *domain)
-{
-}
+static void irq_domain_check_hierarchy(struct irq_domain *domain) { }
+static void irq_domain_free_one_irq(struct irq_domain *domain, unsigned int virq) { }
+
#endif /* CONFIG_IRQ_DOMAIN_HIERARCHY */
#ifdef CONFIG_GENERIC_IRQ_DEBUGFS