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

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

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Marc Zyngier 2016-12-20 09:31:20 +00:00
parent d7276b80e7
commit c808eea8f7
1 changed files with 24 additions and 0 deletions
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24
drivers/irqchip/irq-gic-v3-its.c
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@ -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,
};
/*