On 2023/5/21 下午6:31, WANG Xuerui wrote:
On 2023/5/20 14:38, Jianmin Lv wrote:
From: Liu Peibao liupeibao@loongson.cn
In DeviceTree path, when ht_vec_base is not zero, the hwirq of PCH PIC will be assigned incorrectly. Because when pch_pic_domain_translate() adds the ht_vec_base to hwirq, the hwirq dose not subtract the ht_vec_base when
"does not have the ht_vec_base subtracted"?
Ok, I'll change it as your suggestion, thanks.
calling irq_domain_set_info().
The ht_vec_base is designed for the parent irq chip/domain of the PCH PIC. It seems not proper to deal this in callbacks of the PCH PIC domain and let's put this back like the initial commit ef8c01eb64ca ("irqchip: Add Loongson PCH PIC controller").
Fixes: bcdd75c596c8 ("irqchip/loongson-pch-pic: Add ACPI init support") Cc: stable@vger.kernel.org Signed-off-by: Liu Peibao liupeibao@loongson.cn Signed-off-by: Jianmin Lv lvjianmin@loongson.cn
drivers/irqchip/irq-loongson-pch-pic.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/irqchip/irq-loongson-pch-pic.c b/drivers/irqchip/irq-loongson-pch-pic.c index 921c5c0190d1..93a71f66efeb 100644 --- a/drivers/irqchip/irq-loongson-pch-pic.c +++ b/drivers/irqchip/irq-loongson-pch-pic.c @@ -164,7 +164,7 @@ static int pch_pic_domain_translate(struct irq_domain *d, if (fwspec->param_count < 2) return -EINVAL; - *hwirq = fwspec->param[0] + priv->ht_vec_base; + *hwirq = fwspec->param[0]; *type = fwspec->param[1] & IRQ_TYPE_SENSE_MASK; } else { if (fwspec->param_count < 1) @@ -196,7 +196,7 @@ static int pch_pic_alloc(struct irq_domain *domain, unsigned int virq, parent_fwspec.fwnode = domain->parent->fwnode; parent_fwspec.param_count = 1; - parent_fwspec.param[0] = hwirq; + parent_fwspec.param[0] = hwirq + priv->ht_vec_base; err = irq_domain_alloc_irqs_parent(domain, virq, 1, &parent_fwspec); if (err)