diff options
Diffstat (limited to 'drivers/irqchip/irq-sifive-plic.c')
| -rw-r--r-- | drivers/irqchip/irq-sifive-plic.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/irqchip/irq-sifive-plic.c b/drivers/irqchip/irq-sifive-plic.c index 7d0a12fe2714..9dad45d928bf 100644 --- a/drivers/irqchip/irq-sifive-plic.c +++ b/drivers/irqchip/irq-sifive-plic.c @@ -138,7 +138,13 @@ static void plic_irq_eoi(struct irq_data *d) { struct plic_handler *handler = this_cpu_ptr(&plic_handlers); - writel(d->hwirq, handler->hart_base + CONTEXT_CLAIM); + if (irqd_irq_masked(d)) { + plic_irq_unmask(d); + writel(d->hwirq, handler->hart_base + CONTEXT_CLAIM); + plic_irq_mask(d); + } else { + writel(d->hwirq, handler->hart_base + CONTEXT_CLAIM); + } } static struct irq_chip plic_chip = { @@ -307,3 +313,4 @@ out_iounmap: IRQCHIP_DECLARE(sifive_plic, "sifive,plic-1.0.0", plic_init); IRQCHIP_DECLARE(riscv_plic0, "riscv,plic0", plic_init); /* for legacy systems */ +IRQCHIP_DECLARE(thead_c900_plic, "thead,c900-plic", plic_init); /* for firmware driver */ |