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SubjectRe: [RFC PATCH 17/33] irqchip/gic-v3-its: Add VLPI configuration hook
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On 01/17/2017 04:20 AM, 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@arm.com>
> ---
> 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;
> + }
Missing a return statement.

--
Shanker Donthineni
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.

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