Make Octeon GPIO IRQ chip CPU hotplug-aware

From: Alexander Sverdlin <[email protected]>

Make Octeon GPIO IRQ chip CPU hotplug-aware

Seems that irq_cpu_offline callbacks were forgotten in v1 and v2 CIU GPIO chips. There is such a callback for octeon_irq_chip_ciu2_gpio, covering CIU2 chips. Without this callback GPIO IRQs are not being migrated during core offlining. Patch is tested on Octeon II.

Signed-off-by Alexander Sverdlin <[email protected]>

---

arch/mips/cavium-octeon/octeon-irq.c +2 -0

@@ -809,6 +809,7 @@ static struct irq_chip octeon_irq_chip_ciu_gpio_v2 = {
  	.irq_set_type = octeon_irq_ciu_gpio_set_type,
  #ifdef CONFIG_SMP
  	.irq_set_affinity = octeon_irq_ciu_set_affinity_v2,
+	.irq_cpu_offline = octeon_irq_cpu_offline_ciu,
  #endif
  	.flags = IRQCHIP_SET_TYPE_MASKED,
  };

@@ -823,6 +824,7 @@ static struct irq_chip octeon_irq_chip_ciu_gpio = {
  	.irq_set_type = octeon_irq_ciu_gpio_set_type,
  #ifdef CONFIG_SMP
  	.irq_set_affinity = octeon_irq_ciu_set_affinity,
+	.irq_cpu_offline = octeon_irq_cpu_offline_ciu,
  #endif
  	.flags = IRQCHIP_SET_TYPE_MASKED,
  };

Date: Thu, 23 Oct 2014 08:59:08 -0700
From: David Daney <[email protected]>
To: Alexander Sverdlin <[email protected]>
CC: [email protected], [email protected]
Subject: Re: [PATCH] Make Octeon GPIO IRQ chip CPU hotplug-aware
Content-Type: text/plain; charset=UTF-8; format=flowed

Quoted 9 lines · Alexander Sverdlin

From: Alexander Sverdlin <[email protected]>

Make Octeon GPIO IRQ chip CPU hotplug-aware

Seems that irq_cpu_offline callbacks were forgotten in v1 and v2 CIU GPIO chips. There is such a callback for octeon_irq_chip_ciu2_gpio, covering CIU2 chips. Without this callback GPIO IRQs are not being migrated during core offlining. Patch is tested on Octeon II.

Quoted 1 line

Signed-off-by Alexander Sverdlin <[email protected]>

Acked-by David Daney <[email protected]>

Ralf, please apply.