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irqchip/aslint-sswi: Resolve hart index

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Resolve hart index according to assignment in the "riscv,hart-indexes"
property as defined in the specification [1]

Signed-off-by: Vladimir Kondratiev <vladimir.kondratiev@mobileye.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250612143911.3224046-6-vladimir.kondratiev@mobileye.com
Link: https://github.com/riscvarchive/riscv-aclint [1]
This commit is contained in:
Vladimir Kondratiev 2025-06-12 17:39:09 +03:00 committed by Thomas Gleixner
parent c8c8443a64
commit 128ab2cfd0
1 changed files with 6 additions and 0 deletions
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6
drivers/irqchip/irq-aclint-sswi.c
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@ -71,6 +71,7 @@ static int __init aclint_sswi_parse_irq(struct fwnode_handle *fwnode, void __iom
for (u32 i = 0; i < contexts; i++) {
struct of_phandle_args parent;
unsigned long hartid;
u32 hart_index;
int rc, cpu;
rc = of_irq_parse_one(to_of_node(fwnode), i, &parent);
@ -86,6 +87,11 @@ static int __init aclint_sswi_parse_irq(struct fwnode_handle *fwnode, void __iom
cpu = riscv_hartid_to_cpuid(hartid);
rc = riscv_get_hart_index(fwnode, i, &hart_index);
if (rc) {
pr_warn("%pfwP: hart index [%d] not found\n", fwnode, i);
return -EINVAL;
}
per_cpu(sswi_cpu_regs, cpu) = reg + hart_index * 4;
}