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| author |   Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2021-01-15 08:49:57 +0200 |
|---|---|---|
| committer | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2021-01-15 08:49:57 +0200 |
| commit | d263dfa7d2697a43f3299b9731cd568ee49cdd2c (patch) | |
| tree | f5d993c7000ac41ee926acf0b357ec572ef7908f /drivers/vfio/mdev/vfio_mdev.c | |
| parent | drm/i915/gt: Prune inlines (diff) | |
| parent | Merge tag 'drm-intel-gt-next-2021-01-14' of git://anongit.freedesktop.org/drm/drm-intel into drm-next (diff) | |
| download | wireguard-linux-d263dfa7d2697a43f3299b9731cd568ee49cdd2c.tar.xz wireguard-linux-d263dfa7d2697a43f3299b9731cd568ee49cdd2c.zip | |
Merge drm/drm-next into drm-intel-gt-next
Backmerging to get a common base for merging topic branches between
drm-intel-next and drm-intel-gt-next.
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'drivers/vfio/mdev/vfio_mdev.c')
| -rw-r--r-- | drivers/vfio/mdev/vfio_mdev.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/vfio/mdev/vfio_mdev.c b/drivers/vfio/mdev/vfio_mdev.c index 30964a4e0a28..b52eea128549 100644 --- a/drivers/vfio/mdev/vfio_mdev.c +++ b/drivers/vfio/mdev/vfio_mdev.c @@ -98,6 +98,18 @@ static int vfio_mdev_mmap(void *device_data, struct vm_area_struct *vma) return parent->ops->mmap(mdev, vma); } +static void vfio_mdev_request(void *device_data, unsigned int count) +{ + struct mdev_device *mdev = device_data; + struct mdev_parent *parent = mdev->parent; + + if (parent->ops->request) + parent->ops->request(mdev, count); + else if (count == 0) + dev_notice(mdev_dev(mdev), + "No mdev vendor driver request callback support, blocked until released by user\n"); +} + static const struct vfio_device_ops vfio_mdev_dev_ops = { .name = "vfio-mdev", .open = vfio_mdev_open, @@ -106,6 +118,7 @@ static const struct vfio_device_ops vfio_mdev_dev_ops = { .read = vfio_mdev_read, .write = vfio_mdev_write, .mmap = vfio_mdev_mmap, + .request = vfio_mdev_request, }; static int vfio_mdev_probe(struct device *dev) |