Commit e260cfe6 authored by Huacai Chen's avatar Huacai Chen Committed by Marc Zyngier
Browse files

irqchip/loongson-eiointc: Fix irq affinity setting 



In multi-node case, csr_any_send() should set EIOINTC_REG_ENABLE of
the first core of target node, not the first core of the whole.

Signed-off-by: default avatarHuacai Chen <chenhuacai@loongson.cn>
Signed-off-by: default avatarMarc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220804025421.211958-1-chenhuacai@loongson.cn
parent b0a4ab7c

drivers/irqchip/irq-loongson-eiointc.c

+6 −2
Original line number Diff line number Diff line
@@ -111,11 +111,15 @@ static int eiointc_set_irq_affinity(struct irq_data *d, const struct cpumask *af 
	regaddr = EIOINTC_REG_ENABLE + ((vector >> 5) << 2);



	/* Mask target vector */

	csr_any_send(regaddr, EIOINTC_ALL_ENABLE & (~BIT(vector & 0x1F)), 0x0, 0);

	csr_any_send(regaddr, EIOINTC_ALL_ENABLE & (~BIT(vector & 0x1F)),

			0x0, priv->node * CORES_PER_EIO_NODE);



	/* Set route for target vector */

	eiointc_set_irq_route(vector, cpu, priv->node, &priv->node_map);



	/* Unmask target vector */

	csr_any_send(regaddr, EIOINTC_ALL_ENABLE, 0x0, 0);

	csr_any_send(regaddr, EIOINTC_ALL_ENABLE,

			0x0, priv->node * CORES_PER_EIO_NODE);



	irq_data_update_effective_affinity(d, cpumask_of(cpu));