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From 877cf6ae71c8eb9315014b3b379d9519ae6401b4 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Wed, 3 Apr 2024 23:15:28 +0100
Subject: [PATCH 1/5] mfd: rp1: Support interrupt CPU affinity
See: https://github.com/raspberrypi/linux/issues/6077
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
---
drivers/mfd/rp1.c | 9 +++++++++
1 file changed, 9 insertions(+)
--- a/drivers/mfd/rp1.c
+++ b/drivers/mfd/rp1.c
@@ -141,11 +141,20 @@ static int rp1_irq_set_type(struct irq_d
return ret;
}
+static int rp1_irq_set_affinity(struct irq_data *irqd, const struct cpumask *dest, bool force)
+{
+ struct rp1_dev *rp1 = irqd->domain->host_data;
+ struct irq_data *pcie_irqd = rp1->pcie_irqds[irqd->hwirq];
+
+ return msi_domain_set_affinity(pcie_irqd, dest, force);
+}
+
static struct irq_chip rp1_irq_chip = {
.name = "rp1_irq_chip",
.irq_mask = rp1_mask_irq,
.irq_unmask = rp1_unmask_irq,
.irq_set_type = rp1_irq_set_type,
+ .irq_set_affinity = rp1_irq_set_affinity,
};
static void rp1_chained_handle_irq(struct irq_desc *desc)
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