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virtio-gpu: disable VIRGL with BE kernel 

VIRTIO_GPU_F_VIRGL is added in features list only
for LE kernel, so we must check for it only on LE kernel,
otherwise virtio_has_feature() calls BUG() and
crashes the kernel.

Suggested-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1485263549-28743-1-git-send-email-lvivier@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Laurent Vivier 2017-01-24 14:12:29 +01:00 committed by Gerd Hoffmann
parent 376e5f5449
commit ff2ac58a45
1 changed files with 5 additions and 1 deletions
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6
drivers/gpu/drm/virtio/virtgpu_kms.c
View File

@ -166,10 +166,14 @@ int virtio_gpu_driver_load(struct drm_device *dev, unsigned long flags)
INIT_WORK(&vgdev->config_changed_work,
virtio_gpu_config_changed_work_func);
#ifdef __LITTLE_ENDIAN
if (virtio_has_feature(vgdev->vdev, VIRTIO_GPU_F_VIRGL))
vgdev->has_virgl_3d = true;
DRM_INFO("virgl 3d acceleration %s\n",
vgdev->has_virgl_3d ? "enabled" : "not available");
vgdev->has_virgl_3d ? "enabled" : "not supported by host");
#else
DRM_INFO("virgl 3d acceleration not supported by guest\n");
#endif
ret = vgdev->vdev->config->find_vqs(vgdev->vdev, 2, vqs,
callbacks, names);