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 hanjun.guo@linaro.org --- drivers/irqchip/irq-gic-v3.c | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-)
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c index 7b5bde3..91d2f9a 100644 --- a/drivers/irqchip/irq-gic-v3.c +++ b/drivers/irqchip/irq-gic-v3.c @@ -734,15 +734,21 @@ 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 (acpi_disabled) { /* 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); @@ -904,6 +910,7 @@ IRQCHIP_DECLARE(gic_v3, "arm,gic-v3", gic_of_init); static struct redist_region *redist_regs __initdata; static u32 nr_redist_regions __initdata; static phys_addr_t dist_phy_base __initdata; +static u32 gsi_base __initdata;
static int __init gic_acpi_register_redist(u64 phys_base, u64 size) @@ -961,6 +968,7 @@ gic_acpi_parse_madt_distributor(struct acpi_subtable_header *header, return -EINVAL;
dist_phy_base = dist->base_address; + gsi_base = dist->global_irq_base; return 0; }
@@ -1010,7 +1018,7 @@ gic_acpi_init(struct acpi_table_header *table) if (err) goto out_redist_unmap;
- irq_set_default_host(gic_data.domain); + gsi_cfg_data_add(gic_data.domain, gsi_base, gsi_base + gic_data.irq_nr); return 0;
out_redist_unmap: