diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2020-02-07 09:46:53 +0300 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2020-02-07 11:33:55 +0300 |
| commit | 5edbb56082567d754a096286368e99a3377d8c95 (patch) | |
| tree | 72df0e1c229dd3645a53542467343b99afb49b29 /drivers/gpu/drm/virtio/virtgpu_kms.c | |
| parent | 96b5d1bee29f12fe5d75a96992bd67f3c46c9048 (diff) | |
| download | linux-5edbb56082567d754a096286368e99a3377d8c95.tar.xz | |
drm/virtio: fix ring free check
If the virtio device supports indirect ring descriptors we need only one
ring entry for the whole command. Take that into account when checking
whenever the virtqueue has enough free entries for our command.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200207064653.14403-1-kraxel@redhat.com
Diffstat (limited to 'drivers/gpu/drm/virtio/virtgpu_kms.c')
| -rw-r--r-- | drivers/gpu/drm/virtio/virtgpu_kms.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_kms.c b/drivers/gpu/drm/virtio/virtgpu_kms.c index 2f5773e43557..c1086df49816 100644 --- a/drivers/gpu/drm/virtio/virtgpu_kms.c +++ b/drivers/gpu/drm/virtio/virtgpu_kms.c @@ -159,6 +159,9 @@ int virtio_gpu_init(struct drm_device *dev) if (virtio_has_feature(vgdev->vdev, VIRTIO_GPU_F_EDID)) { vgdev->has_edid = true; } + if (virtio_has_feature(vgdev->vdev, VIRTIO_RING_F_INDIRECT_DESC)) { + vgdev->has_indirect = true; + } DRM_INFO("features: %cvirgl %cedid\n", vgdev->has_virgl_3d ? '+' : '-', |