target/linux/bcm27xx/patches-6.1/961-1-mfd-rp1-Support-interrupt-CPU-affinity.patch

   1 From 877cf6ae71c8eb9315014b3b379d9519ae6401b4 Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.com>
   3 Date: Wed, 3 Apr 2024 23:15:28 +0100
   4 Subject: [PATCH 1/5] mfd: rp1: Support interrupt CPU affinity
   5
   6 See: https://github.com/raspberrypi/linux/issues/6077
   7
   8 Signed-off-by: Phil Elwell <phil@raspberrypi.com>
   9 ---
  10  drivers/mfd/rp1.c | 9 +++++++++
  11  1 file changed, 9 insertions(+)
  12
  13 --- a/drivers/mfd/rp1.c
  14 +++ b/drivers/mfd/rp1.c
  15 @@ -141,11 +141,20 @@ static int rp1_irq_set_type(struct irq_d
  16         return ret;
  17  }
  18
  19 +static int rp1_irq_set_affinity(struct irq_data *irqd, const struct cpumask *dest, bool force)
  20 +{
  21 +       struct rp1_dev *rp1 = irqd->domain->host_data;
  22 +       struct irq_data *pcie_irqd = rp1->pcie_irqds[irqd->hwirq];
  23 +
  24 +       return msi_domain_set_affinity(pcie_irqd, dest, force);
  25 +}
  26 +
  27  static struct irq_chip rp1_irq_chip = {
  28         .name            = "rp1_irq_chip",
  29         .irq_mask        = rp1_mask_irq,
  30         .irq_unmask      = rp1_unmask_irq,
  31         .irq_set_type    = rp1_irq_set_type,
  32 +       .irq_set_affinity = rp1_irq_set_affinity,
  33  };
  34
  35  static void rp1_chained_handle_irq(struct irq_desc *desc)