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| author | Marc Zyngier <marc.zyngier@arm.com> | 2017-05-12 12:55:36 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-05-22 22:29:44 +0200 |
| commit | 2370c00dc7232d0c4af224e7730b4de031f3b1a0 (patch) | |
| tree | 153759e63e9280167c98d038b90f37cf59993362 /kernel/irq/irqdomain.c | |
| parent | fe17a42e704a64477b15bb2cf8366fe3e5119aff (diff) | |
| download | linux-2370c00dc7232d0c4af224e7730b4de031f3b1a0.tar.bz2 | |
irqdomain: Let irq_domain_mapping display ACPI fwnode attributes
If the system is using ACPI, there is no of_node to display. But ACPI can
use a struct irqchip_fwid as a domain identifier, and it can be used to
display the name contained in that structure.
The output on such a system will look 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 <marc.zyngier@arm.com>
Link: http://lkml.kernel.org/r/20170512115538.10767-3-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/irq/irqdomain.c')
| -rw-r--r-- | kernel/irq/irqdomain.c | 13 |
1 files changed, 12 insertions, 1 deletions
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); |