[PATCH 2/4] irqchip/sifive-plic: Improve boot prints for multiple PLIC instances

From: Anup Patel
Date: Sat May 16 2020 - 02:39:44 EST


We improve PLIC banner to help distinguish multiple PLIC instances
in boot time prints.

Signed-off-by: Anup Patel <anup.patel@xxxxxxx>
---
drivers/irqchip/irq-sifive-plic.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/irqchip/irq-sifive-plic.c b/drivers/irqchip/irq-sifive-plic.c
index 7dc23edb3267..2d3db927a551 100644
--- a/drivers/irqchip/irq-sifive-plic.c
+++ b/drivers/irqchip/irq-sifive-plic.c
@@ -284,6 +284,11 @@ static int __init plic_init(struct device_node *node,
u32 nr_irqs;
struct plic_priv *priv;
struct plic_handler *handler;
+ struct resource iores;
+
+ error = of_address_to_resource(node, 0, &iores);
+ if (error)
+ return error;

priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv)
@@ -377,8 +382,10 @@ static int __init plic_init(struct device_node *node,
plic_cpuhp_setup_done = true;
}

- pr_info("mapped %d interrupts with %d handlers for %d contexts.\n",
- nr_irqs, nr_handlers, nr_contexts);
+ pr_info("interrupt-controller at 0x%llx "
+ "(interrupts=%d, contexts=%d, handlers=%d)\n",
+ (unsigned long long)iores.start, nr_irqs,
+ nr_contexts, nr_handlers);
set_handle_irq(plic_handle_irq);
return 0;

--
2.25.1