diff options
| author | Dave Airlie <airlied@redhat.com> | 2015-06-16 07:25:34 +0300 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2015-06-16 12:22:40 +0300 |
| commit | 441012aff674c8d2d9b371e1a19320de38eecc84 (patch) | |
| tree | 90c56017b5fa4d915f199a942f61739d9fe16399 /drivers/gpu/drm/virtio | |
| parent | 50cb941a26b9311c39ba59567fcfad48f5eab4a3 (diff) | |
| download | linux-441012aff674c8d2d9b371e1a19320de38eecc84.tar.xz | |
drm/virtgpu: initialise fbdev after getting initial display info
This should avoid issues with the fbdev path trying to render
before we've gotten the display info.
Signed-off-by: Dave Airlie <airlied@redhat.com>
[ kraxel: wait for display-info reply ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/virtio')
| -rw-r--r-- | drivers/gpu/drm/virtio/virtgpu_drv.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/virtio/virtgpu_kms.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/virtio/virtgpu_vq.c | 2 |
3 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index e5a2c092460b..ff8de3d6f0b2 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -171,6 +171,7 @@ struct virtio_gpu_device { wait_queue_head_t resp_wq; /* current display info */ spinlock_t display_info_lock; + bool display_info_pending; struct virtio_gpu_fence_driver fence_drv; diff --git a/drivers/gpu/drm/virtio/virtgpu_kms.c b/drivers/gpu/drm/virtio/virtgpu_kms.c index 132405f15389..782766c00d70 100644 --- a/drivers/gpu/drm/virtio/virtgpu_kms.c +++ b/drivers/gpu/drm/virtio/virtgpu_kms.c @@ -137,9 +137,11 @@ int virtio_gpu_driver_load(struct drm_device *dev, unsigned long flags) virtio_device_ready(vgdev->vdev); vgdev->vqs_ready = true; + virtio_gpu_cmd_get_display_info(vgdev); + wait_event_timeout(vgdev->resp_wq, !vgdev->display_info_pending, + 5 * HZ); if (virtio_gpu_fbdev) virtio_gpu_fbdev_init(vgdev); - virtio_gpu_cmd_get_display_info(vgdev); return 0; diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c index 8fa6513eb3bc..c5067926401f 100644 --- a/drivers/gpu/drm/virtio/virtgpu_vq.c +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c @@ -534,6 +534,7 @@ static void virtio_gpu_cmd_get_display_info_cb(struct virtio_gpu_device *vgdev, } } + vgdev->display_info_pending = false; spin_unlock(&vgdev->display_info_lock); wake_up(&vgdev->resp_wq); @@ -558,6 +559,7 @@ int virtio_gpu_cmd_get_display_info(struct virtio_gpu_device *vgdev) resp_buf); memset(cmd_p, 0, sizeof(*cmd_p)); + vgdev->display_info_pending = true; cmd_p->type = cpu_to_le32(VIRTIO_GPU_CMD_GET_DISPLAY_INFO); virtio_gpu_queue_ctrl_buffer(vgdev, vbuf); return 0; |