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| author | Marc Zyngier <marc.zyngier@arm.com> | 2016-12-20 09:31:20 +0000 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2017-08-31 15:31:33 +0100 |
| commit | c808eea8f763a996409656df83c41b8ec628060b (patch) | |
| tree | 3437cc0715d27a0a405e43655f7572fb02c041f1 /drivers/irqchip | |
| parent | d7276b80e752acaaf30f04e62d0e986b5bced2df (diff) | |
| download | linux-c808eea8f763a996409656df83c41b8ec628060b.tar.bz2 | |
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: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-gic-v3-its.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index dd92a8a4572a..ead06d443c3b 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> @@ -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, }; /* |