If we're using ACPI, there is no of_node to display. But ACPI can use a struct irqchip_fwid as a domain identifier, and we can display the name contained in that structure.
We end-up with something like this: pMSI 0 0 0 irqchip@00000000e1180000 MSI 37 0 0 irqchip@00000000e1180000 GICv2m 37 0 0 irqchip@00000000e1180000 GICv2 448 448 0 irqchip@ffff000008003000 Signed-off-by: Marc Zyngier <[email protected]> --- kernel/irq/irqdomain.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index 1f6cd2cacf74..70b9da72018b 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -801,15 +801,26 @@ static int virq_debug_show(struct seq_file *m, void *private) mutex_lock(&irq_domain_mutex); list_for_each_entry(domain, &irq_domain_list, link) { struct device_node *of_node; + const char *name; + int count = 0; + of_node = irq_domain_get_of_node(domain); + if (of_node) + name = of_node_full_name(of_node); + else if (is_fwnode_irqchip(domain->fwnode)) + name = container_of(domain->fwnode, struct irqchip_fwid, + fwnode)->name; + else + name = ""; + radix_tree_for_each_slot(slot, &domain->revmap_tree, &iter, 0) count++; seq_printf(m, "%c%-16s %6u %10u %10u %s\n", domain == irq_default_domain ? '*' : ' ', domain->name, domain->revmap_size + count, domain->revmap_size, domain->revmap_direct_max_irq, - of_node ? of_node_full_name(of_node) : ""); + name); } mutex_unlock(&irq_domain_mutex); -- 2.11.0
