diff options
Diffstat (limited to 'drivers/virtio/virtio_mmio.c')
| -rw-r--r-- | drivers/virtio/virtio_mmio.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c index 083ff1eb743d..c492a57531c6 100644 --- a/drivers/virtio/virtio_mmio.c +++ b/drivers/virtio/virtio_mmio.c @@ -360,7 +360,7 @@ static void vm_synchronize_cbs(struct virtio_device *vdev) static struct virtqueue *vm_setup_vq(struct virtio_device *vdev, unsigned int index, void (*callback)(struct virtqueue *vq), - const char *name, bool ctx) + const char *name, u32 size, bool ctx) { struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev); struct virtio_mmio_vq_info *info; @@ -395,14 +395,19 @@ static struct virtqueue *vm_setup_vq(struct virtio_device *vdev, unsigned int in goto error_new_virtqueue; } + if (!size || size > num) + size = num; + /* Create the vring */ - vq = vring_create_virtqueue(index, num, VIRTIO_MMIO_VRING_ALIGN, vdev, + vq = vring_create_virtqueue(index, size, VIRTIO_MMIO_VRING_ALIGN, vdev, true, true, ctx, vm_notify, callback, name); if (!vq) { err = -ENOMEM; goto error_new_virtqueue; } + vq->num_max = num; + /* Activate the queue */ writel(virtqueue_get_vring_size(vq), vm_dev->base + VIRTIO_MMIO_QUEUE_NUM); if (vm_dev->version == 1) { @@ -472,6 +477,7 @@ static int vm_find_vqs(struct virtio_device *vdev, unsigned int nvqs, struct virtqueue *vqs[], vq_callback_t *callbacks[], const char * const names[], + u32 sizes[], const bool *ctx, struct irq_affinity *desc) { @@ -487,6 +493,9 @@ static int vm_find_vqs(struct virtio_device *vdev, unsigned int nvqs, if (err) return err; + if (of_property_read_bool(vm_dev->pdev->dev.of_node, "wakeup-source")) + enable_irq_wake(irq); + for (i = 0; i < nvqs; ++i) { if (!names[i]) { vqs[i] = NULL; @@ -494,6 +503,7 @@ static int vm_find_vqs(struct virtio_device *vdev, unsigned int nvqs, } vqs[i] = vm_setup_vq(vdev, queue_idx++, callbacks[i], names[i], + sizes ? sizes[i] : 0, ctx ? ctx[i] : false); if (IS_ERR(vqs[i])) { vm_del_vqs(vdev); |