For demonstration purposes only.
Signed-off-by: Ralf Ramsauer <ralf.ramsa...@oth-regensburg.de>
---
driver/pci.c | 33 +++++++++++++++++++++------------
1 file changed, 21 insertions(+), 12 deletions(-)
diff --git a/driver/pci.c b/driver/pci.c
index da516479..4f52eba8 100644
--- a/driver/pci.c
+++ b/driver/pci.c
@@ -292,19 +292,21 @@ static unsigned int count_ivshmem_devices(struct cell
*cell)
return count;
}
-static const struct of_device_id gic_of_match[] = {
+static const struct of_device_id irqchip_of_match[] = {
{ .compatible = "arm,cortex-a15-gic", },
{ .compatible = "arm,cortex-a7-gic", },
{ .compatible = "arm,gic-400", },
{ .compatible = "arm,gic-v3", },
+ { .compatible = "riscv,plic0", },
+ { .compatible = "sifive,plic-1.0.0", },
{},
};
static bool create_vpci_of_overlay(struct jailhouse_system *config)
{
- u32 address_cells, size_cells, gic_address_cells, gic_phandle;
+ u32 address_cells, size_cells, irqchip_address_cells, irqchip_phandle;
struct device_node *vpci_node = NULL;
- struct device_node *root, *gic;
+ struct device_node *root, *irqchip;
struct property *prop = NULL;
unsigned int n, cell;
u64 base_addr;
@@ -322,15 +324,16 @@ static bool create_vpci_of_overlay(struct
jailhouse_system *config)
of_node_put(root);
- gic = of_find_matching_node(NULL, gic_of_match);
- if (!gic)
+ irqchip= of_find_matching_node(NULL, irqchip_of_match);
+ if (!irqchip)
return false;
- if (of_property_read_u32(gic, "#address-cells", &gic_address_cells) < 0)
- gic_address_cells = 0;
- gic_phandle = gic->phandle;
+ if (of_property_read_u32(irqchip, "#address-cells",
+ &irqchip_address_cells) < 0)
+ irqchip_address_cells = 0;
+ irqchip_phandle = irqchip->phandle;
- of_node_put(gic);
+ of_node_put(irqchip);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,17,0)
if (of_overlay_fdt_apply(__dtb_vpci_template_begin,
@@ -386,7 +389,7 @@ static bool create_vpci_of_overlay(struct jailhouse_system
*config)
}
prop = alloc_prop("interrupt-map",
- sizeof(u32) * (8 + gic_address_cells) * 4);
+ sizeof(u32) * (8 + irqchip_address_cells) * 4);
if (!prop)
goto out;
@@ -394,12 +397,18 @@ static bool create_vpci_of_overlay(struct
jailhouse_system *config)
for (n = 0, cell = 0; n < 4; n++) {
cell += 3; /* match addr (0) */
prop_val[cell++] = cpu_to_be32(n + 1); /* match addr */
- prop_val[cell++] = cpu_to_be32(gic_phandle);
- cell += gic_address_cells; /* parent addr (0) */
+ prop_val[cell++] = cpu_to_be32(irqchip_phandle);
+ cell += irqchip_address_cells; /* parent addr (0) */
+#if defined(CONFIG_ARM) || defined(CONFIG_ARM64)
prop_val[cell++] = cpu_to_be32(GIC_SPI);
prop_val[cell++] =
cpu_to_be32(config->root_cell.vpci_irq_base + n);
prop_val[cell++] = cpu_to_be32(IRQ_TYPE_EDGE_RISING);
+#elif defined(CONFIG_RISCV)
+ prop_val[cell++] =
+ cpu_to_be32(config->root_cell.vpci_irq_base + n);
+ prop_val[cell++] = 0;
+#endif
}
if (of_changeset_add_property(&overlay_changeset, vpci_node, prop) < 0)
--
2.36.1
--
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