[PATCH 09/11] irqchip / GICv3: Add stacked irqdomain support for ACPI based init
From: Hanjun Guo <hidden>
Date: 2015-05-18 13:03:45
Also in:
linux-acpi, lkml
Subsystem:
arm generic interrupt controller drivers, irqchip drivers, the rest · Maintainers:
Marc Zyngier, Thomas Gleixner, Linus Torvalds
Similar as stacked domain support for ACPI based GICv2 init, let acpi_irq_domain point to the core domain of GICv3 and pass the gsi as the arg to support stacked irqdomain. Signed-off-by: Hanjun Guo <redacted> --- drivers/irqchip/irq-gic-v3.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-)
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index 11946a6..e7f134e 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c@@ -733,15 +733,21 @@ static int gic_irq_domain_xlate(struct irq_domain *d, static int gic_irq_domain_alloc(struct irq_domain *domain, unsigned int virq, unsigned int nr_irqs, void *arg) { - int i, ret; + int i; irq_hw_number_t hwirq; - unsigned int type = IRQ_TYPE_NONE; - struct of_phandle_args *irq_data = arg; - ret = gic_irq_domain_xlate(domain, irq_data->np, irq_data->args, - irq_data->args_count, &hwirq, &type); - if (ret) - return ret; + if (domain->of_node) { /* DT case */ + int ret; + unsigned int type = IRQ_TYPE_NONE; + struct of_phandle_args *irq_data = arg; + + ret = gic_irq_domain_xlate(domain, irq_data->np, irq_data->args, + irq_data->args_count, &hwirq, &type); + if (ret) + return ret; + } else { /* ACPI case */ + hwirq = (irq_hw_number_t)*(u32 *)arg; + } for (i = 0; i < nr_irqs; i++) gic_irq_domain_map(domain, virq + i, hwirq + i);
@@ -1012,7 +1018,7 @@ gic_v3_acpi_init(struct acpi_table_header *table) if (err) goto out_redist_unmap; - irq_set_default_host(gic_data.domain); + acpi_irq_domain = gic_data.domain; return 0; out_redist_unmap:
--
1.9.1