Simply synchronize the platform irq that is used by us.
Cc: Thomas Gleixner <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: "Paul E. McKenney" <[email protected]>
Cc: Marc Zyngier <[email protected]>
Cc: Halil Pasic <[email protected]>
Cc: Cornelia Huck <[email protected]>
Cc: Vineeth Vijayan <[email protected]>
Cc: Peter Oberparleiter <[email protected]>
Cc: [email protected]
Reviewed-by: Cornelia Huck <[email protected]>
Signed-off-by: Jason Wang <[email protected]>
---
drivers/virtio/virtio_mmio.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c
index 839684d672af..c9699a59f93c 100644
--- a/drivers/virtio/virtio_mmio.c
+++ b/drivers/virtio/virtio_mmio.c
@@ -345,6 +345,13 @@ static void vm_del_vqs(struct virtio_device *vdev)
free_irq(platform_get_irq(vm_dev->pdev, 0), vm_dev);
}
+static void vm_synchronize_cbs(struct virtio_device *vdev)
+{
+ struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev);
+
+ synchronize_irq(platform_get_irq(vm_dev->pdev, 0));
+}
+
static struct virtqueue *vm_setup_vq(struct virtio_device *vdev, unsigned int
index,
void (*callback)(struct virtqueue *vq),
const char *name, bool ctx)
@@ -541,6 +548,7 @@ static const struct virtio_config_ops
virtio_mmio_config_ops = {
.finalize_features = vm_finalize_features,
.bus_name = vm_bus_name,
.get_shm_region = vm_get_shm_region,
+ .synchronize_cbs = vm_synchronize_cbs,
};
--
2.25.1
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