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@xxxxxxxxxx>
---
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:
--
1.9.1
--
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