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drm/virtio: fix ring free check

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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
This commit is contained in:
Gerd Hoffmann
2020-02-07 07:46:53 +01:00
parent 96b5d1bee2
commit 5edbb56082
4 changed files with 8 additions and 0 deletions
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1
drivers/gpu/drm/virtio/virtgpu_drv.h
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@@ -193,6 +193,7 @@ struct virtio_gpu_device {
bool has_virgl_3d;
bool has_edid;
bool has_indirect;
struct work_struct config_changed_work;