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Commit c808eea8 authored by Marc Zyngier's avatar Marc Zyngier
Browse files

irqchip/gic-v3-its: Add VLPI configuration hook 



Add the skeleton irq_set_vcpu_affinity method that will be used
to configure VLPIs.

Reviewed-by: default avatarEric Auger <eric.auger@redhat.com>
Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
parent d7276b80

drivers/irqchip/irq-gic-v3-its.c

+24 −0
Original line number Diff line number Diff line
@@ -36,6 +36,7 @@ 


#include <linux/irqchip.h>

#include <linux/irqchip/arm-gic-v3.h>

#include <linux/irqchip/arm-gic-v4.h>



#include <asm/cputype.h>

#include <asm/exception.h>
@@ -786,6 +787,28 @@ static int its_irq_set_irqchip_state(struct irq_data *d, 
	return 0;

}



static int its_irq_set_vcpu_affinity(struct irq_data *d, void *vcpu_info)

{

	struct its_device *its_dev = irq_data_get_irq_chip_data(d);

	struct its_cmd_info *info = vcpu_info;



	/* Need a v4 ITS */

	if (!its_dev->its->is_v4 || !info)

		return -EINVAL;



	switch (info->cmd_type) {

	case MAP_VLPI:



	case GET_VLPI:



	case PROP_UPDATE_VLPI:

	case PROP_UPDATE_AND_INV_VLPI:



	default:

		return -EINVAL;

	}

}



static struct irq_chip its_irq_chip = {

	.name			= "ITS",

	.irq_mask		= its_mask_irq,
@@ -794,6 +817,7 @@ static struct irq_chip its_irq_chip = { 
	.irq_set_affinity	= its_set_affinity,

	.irq_compose_msi_msg	= its_irq_compose_msi_msg,

	.irq_set_irqchip_state	= its_irq_set_irqchip_state,

	.irq_set_vcpu_affinity	= its_irq_set_vcpu_affinity,

};



/*