diff options
| author | Gautam Dawar <gautam.dawar@xilinx.com> | 2022-03-30 20:03:48 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2022-05-31 18:44:28 +0200 |
| commit | 1cb108994c6830cc6a6e066ad7d9a22ef59fa167 (patch) | |
| tree | b24269d0359a29748df3de6bf4f6ff423a3846a1 /drivers/vhost | |
| parent | vdpa: introduce config operations for associating ASID to a virtqueue group (diff) | |
| download | linux-1cb108994c6830cc6a6e066ad7d9a22ef59fa167.tar.xz linux-1cb108994c6830cc6a6e066ad7d9a22ef59fa167.zip | |
vhost_iotlb: split out IOTLB initialization
This patch splits out IOTLB initialization to make sure it could be
reused by external modules.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Gautam Dawar <gdawar@xilinx.com>
Message-Id: <20220330180436.24644-9-gdawar@xilinx.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vhost')
| -rw-r--r-- | drivers/vhost/iotlb.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/drivers/vhost/iotlb.c b/drivers/vhost/iotlb.c index 5829cf2d0552..ea61330a3431 100644 --- a/drivers/vhost/iotlb.c +++ b/drivers/vhost/iotlb.c @@ -126,6 +126,23 @@ void vhost_iotlb_del_range(struct vhost_iotlb *iotlb, u64 start, u64 last) EXPORT_SYMBOL_GPL(vhost_iotlb_del_range); /** + * vhost_iotlb_init - initialize a vhost IOTLB + * @iotlb: the IOTLB that needs to be initialized + * @limit: maximum number of IOTLB entries + * @flags: VHOST_IOTLB_FLAG_XXX + */ +void vhost_iotlb_init(struct vhost_iotlb *iotlb, unsigned int limit, + unsigned int flags) +{ + iotlb->root = RB_ROOT_CACHED; + iotlb->limit = limit; + iotlb->nmaps = 0; + iotlb->flags = flags; + INIT_LIST_HEAD(&iotlb->list); +} +EXPORT_SYMBOL_GPL(vhost_iotlb_init); + +/** * vhost_iotlb_alloc - add a new vhost IOTLB * @limit: maximum number of IOTLB entries * @flags: VHOST_IOTLB_FLAG_XXX @@ -139,11 +156,7 @@ struct vhost_iotlb *vhost_iotlb_alloc(unsigned int limit, unsigned int flags) if (!iotlb) return NULL; - iotlb->root = RB_ROOT_CACHED; - iotlb->limit = limit; - iotlb->nmaps = 0; - iotlb->flags = flags; - INIT_LIST_HEAD(&iotlb->list); + vhost_iotlb_init(iotlb, limit, flags); return iotlb; } |