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A RISC-V irqchip driver fix.

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Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'irq-urgent-2024-03-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fix from Ingo Molnar:
 "A RISC-V irqchip driver fix"

* tag 'irq-urgent-2024-03-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/riscv-intc: Fix use of AIA interrupts 32-63 on riscv32
This commit is contained in:
Linus Torvalds 2024-03-18 09:10:44 -07:00
commit 4ae3dc83b0
1 changed files with 8 additions and 5 deletions
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13
drivers/irqchip/irq-riscv-intc.c
View File

@ -149,8 +149,9 @@ static int riscv_intc_domain_alloc(struct irq_domain *domain,
* Only allow hwirq for which we have corresponding standard or
* custom interrupt enable register.
*/
if ((hwirq >= riscv_intc_nr_irqs && hwirq < riscv_intc_custom_base) ||
(hwirq >= riscv_intc_custom_base + riscv_intc_custom_nr_irqs))
if (hwirq >= riscv_intc_nr_irqs &&
(hwirq < riscv_intc_custom_base ||
hwirq >= riscv_intc_custom_base + riscv_intc_custom_nr_irqs))
return -EINVAL;
for (i = 0; i < nr_irqs; i++) {
@ -183,10 +184,12 @@ static int __init riscv_intc_init_common(struct fwnode_handle *fn, struct irq_ch
return -ENXIO;
}
if (riscv_isa_extension_available(NULL, SxAIA))
if (riscv_isa_extension_available(NULL, SxAIA)) {
riscv_intc_nr_irqs = 64;
rc = set_handle_irq(&riscv_intc_aia_irq);
else
} else {
rc = set_handle_irq(&riscv_intc_irq);
}
if (rc) {
pr_err("failed to set irq handler\n");
return rc;
@ -195,7 +198,7 @@ static int __init riscv_intc_init_common(struct fwnode_handle *fn, struct irq_ch
riscv_set_intc_hwnode_fn(riscv_intc_hwnode);
pr_info("%d local interrupts mapped%s\n",
riscv_isa_extension_available(NULL, SxAIA) ? 64 : riscv_intc_nr_irqs,
riscv_intc_nr_irqs,
riscv_isa_extension_available(NULL, SxAIA) ? " using AIA" : "");
if (riscv_intc_custom_nr_irqs)
pr_info("%d custom local interrupts mapped\n", riscv_intc_custom_nr_irqs);