Commit-ID: c808eea8f763a996409656df83c41b8ec628060b
Gitweb: http://git.kernel.org/tip/c808eea8f763a996409656df83c41b8ec628060b
Author: Marc Zyngier <marc.zyngier@xxxxxxx>
AuthorDate: Tue, 20 Dec 2016 09:31:20 +0000
Committer: Marc Zyngier <marc.zyngier@xxxxxxx>
CommitDate: Thu, 31 Aug 2017 15:31:33 +0100
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@xxxxxxxxxx>
Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
---
drivers/irqchip/irq-gic-v3-its.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index dd92a8a..ead06d4 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,
};
/*
--
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