Hi,
On 17/01/2017 11:20, Marc Zyngier wrote:
> Add the skeleton irq_set_vcpu_affinity method that will be used
> to configure VLPIs.
>
> Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
Reviewed-by: Eric Auger <eric.auger@xxxxxxxxxx>
Eric
> ---
> drivers/irqchip/irq-gic-v3-its.c | 33 +++++++++++++++++++++++++++++++++
> 1 file changed, 33 insertions(+)
>
> diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
> index 0dbc8b0..1bd78ca 100644
> --- a/drivers/irqchip/irq-gic-v3-its.c
> +++ b/drivers/irqchip/irq-gic-v3-its.c
> @@ -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>
> @@ -771,6 +772,37 @@ 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;
> + u32 event = its_get_event_id(d);
> +
> + /* Need a v4 ITS */
> + if (!its_dev->its->is_v4 || !info)
> + return -EINVAL;
> +
> + switch (info->cmd_type) {
> + case MAP_VLPI:
> + {
> + return 0;
> + }
> +
> + case UNMAP_VLPI:
> + {
> + return 0;
> + }
> +
> + case PROP_UPDATE_VLPI:
> + {
> + return 0;
> + }
> +
> + default:
> + return -EINVAL;
> + }
> +}
> +
> static struct irq_chip its_irq_chip = {
> .name = "ITS",
> .irq_mask = its_mask_irq,
> @@ -779,6 +811,7 @@ 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,
> };
>
> /*
>
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