[PATCH] virtio-gpu: disable VIRGL with BE kernel
flat view
STALE3547d
From: Laurent Vivier <lvivier@redhat.com>
Date: 2017-01-24 13:19:27
Also in:
dri-devel, lkml
Subsystem:
drm drivers, drm drivers and misc gpu patches, the rest, virtio gpu driver · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Linus Torvalds, David Airlie, Gerd Hoffmann, Dmitry Osipenko
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> --- Note: this patch has been actually written by Gerd, but to post it I don't know if "Suggested-by" is enough or if I should change the "author" field. drivers/gpu/drm/virtio/virtgpu_kms.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_kms.c b/drivers/gpu/drm/virtio/virtgpu_kms.c
index 1235519..87915d5 100644
--- a/drivers/gpu/drm/virtio/virtgpu_kms.c
+++ b/drivers/gpu/drm/virtio/virtgpu_kms.c@@ -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);
--
2.7.4