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@xxxxxxx>
---
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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