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authorSunil V L2022-05-27 10:47:42 +0530
committerPalmer Dabbelt2022-07-19 16:39:14 -0700
commitad635e723e17379b192a5ba9c182e3eedfc24d16 (patch)
tree16f68aacc8eb9b33253e64b2811783f96acf4a67 /drivers/irqchip
parent62750eae410cf20b7d040395064bac547cfdf540 (diff)
riscv: cpu: Add 64bit hartid support on RV64
The hartid can be a 64bit value on RV64 platforms. Add support for 64bit hartid in riscv_of_processor_hartid() and update its callers. Signed-off-by: Sunil V L <sunilvl@ventanamicro.com> Reviewed-by: Atish Patra <atishp@rivosinc.com> Link: https://lore.kernel.org/r/20220527051743.2829940-5-sunilvl@ventanamicro.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'drivers/irqchip')
-rw-r--r--drivers/irqchip/irq-riscv-intc.c7
-rw-r--r--drivers/irqchip/irq-sifive-plic.c7
2 files changed, 8 insertions, 6 deletions
diff --git a/drivers/irqchip/irq-riscv-intc.c b/drivers/irqchip/irq-riscv-intc.c
index b65bd8878d4f..499e5f81b3fe 100644
--- a/drivers/irqchip/irq-riscv-intc.c
+++ b/drivers/irqchip/irq-riscv-intc.c
@@ -95,10 +95,11 @@ static const struct irq_domain_ops riscv_intc_domain_ops = {
static int __init riscv_intc_init(struct device_node *node,
struct device_node *parent)
{
- int rc, hartid;
+ int rc;
+ unsigned long hartid;
- hartid = riscv_of_parent_hartid(node);
- if (hartid < 0) {
+ rc = riscv_of_parent_hartid(node, &hartid);
+ if (rc < 0) {
pr_warn("unable to find hart id for %pOF\n", node);
return 0;
}
diff --git a/drivers/irqchip/irq-sifive-plic.c b/drivers/irqchip/irq-sifive-plic.c
index bb87e4c3b88e..4710d9741f36 100644
--- a/drivers/irqchip/irq-sifive-plic.c
+++ b/drivers/irqchip/irq-sifive-plic.c
@@ -317,7 +317,8 @@ static int __init plic_init(struct device_node *node,
for (i = 0; i < nr_contexts; i++) {
struct of_phandle_args parent;
irq_hw_number_t hwirq;
- int cpu, hartid;
+ int cpu;
+ unsigned long hartid;
if (of_irq_parse_one(node, i, &parent)) {
pr_err("failed to parse parent for context %d.\n", i);
@@ -341,8 +342,8 @@ static int __init plic_init(struct device_node *node,
continue;
}
- hartid = riscv_of_parent_hartid(parent.np);
- if (hartid < 0) {
+ error = riscv_of_parent_hartid(parent.np, &hartid);
+ if (error < 0) {
pr_warn("failed to parse hart ID for context %d.\n", i);
continue;
}