[PATCH 2/4] drm/virtio: factor out context create cmd

[Gurchetan Singh]

We currently do it when open the DRM fd, let's delay it. First step,
remove the hyercall from initialization.

Signed-off-by: Gurchetan Singh <gurchetansingh at chromium.org>
---
 drivers/gpu/drm/virtio/virtgpu_drv.h   |  2 ++
 drivers/gpu/drm/virtio/virtgpu_ioctl.c | 16 ++++++++++++++++
 drivers/gpu/drm/virtio/virtgpu_kms.c   | 10 ++++------
 3 files changed, 22 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
index 28aeac8717e1..edaa7b8224a8 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.h
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
@@ -214,6 +214,8 @@ struct virtio_gpu_fpriv {
 /* virtio_ioctl.c */
 #define DRM_VIRTIO_NUM_IOCTLS 10
 extern struct drm_ioctl_desc virtio_gpu_ioctls[DRM_VIRTIO_NUM_IOCTLS];
+void virtio_gpu_create_context(struct drm_device *dev,
+			       struct drm_file *file);
 
 /* virtio_kms.c */
 int virtio_gpu_init(struct drm_device *dev);
diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
index 89d90e95900f..f1afabaa3a08 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -33,6 +33,22 @@
 
 #include "virtgpu_drv.h"
 
+void virtio_gpu_create_context(struct drm_device *dev,
+			       struct drm_file *file)
+{
+	struct virtio_gpu_device *vgdev = dev->dev_private;
+	struct virtio_gpu_fpriv *vfpriv = file->driver_priv;
+	char dbgname[TASK_COMM_LEN];
+
+	/* can't create contexts without 3d renderer */
+	if (!vgdev->has_virgl_3d)
+		return;
+
+	get_task_comm(dbgname, current);
+	virtio_gpu_cmd_context_create(vgdev, vfpriv->ctx_id,
+				      strlen(dbgname), dbgname);
+}
+
 static int virtio_gpu_map_ioctl(struct drm_device *dev, void *data,
 				struct drm_file *file)
 {
diff --git a/drivers/gpu/drm/virtio/virtgpu_kms.c b/drivers/gpu/drm/virtio/virtgpu_kms.c
index 44e4c07d0162..e1e1c0821a35 100644
--- a/drivers/gpu/drm/virtio/virtgpu_kms.c
+++ b/drivers/gpu/drm/virtio/virtgpu_kms.c
@@ -52,15 +52,13 @@ static void virtio_gpu_config_changed_work_func(struct work_struct *work)
 		      events_clear, &events_clear);
 }
 
-static int virtio_gpu_context_create(struct virtio_gpu_device *vgdev,
-				      uint32_t nlen, const char *name)
+static int virtio_gpu_context_handle(struct virtio_gpu_device *vgdev)
 {
 	int handle = ida_alloc(&vgdev->ctx_id_ida, GFP_KERNEL);
 
 	if (handle < 0)
 		return handle;
 	handle += 1;
-	virtio_gpu_cmd_context_create(vgdev, handle, nlen, name);
 	return handle;
 }
 
@@ -256,7 +254,6 @@ int virtio_gpu_driver_open(struct drm_device *dev, struct drm_file *file)
 	struct virtio_gpu_device *vgdev = dev->dev_private;
 	struct virtio_gpu_fpriv *vfpriv;
 	int id;
-	char dbgname[TASK_COMM_LEN];
 
 	/* can't create contexts without 3d renderer */
 	if (!vgdev->has_virgl_3d)
@@ -267,8 +264,7 @@ int virtio_gpu_driver_open(struct drm_device *dev, struct drm_file *file)
 	if (!vfpriv)
 		return -ENOMEM;
 
-	get_task_comm(dbgname, current);
-	id = virtio_gpu_context_create(vgdev, strlen(dbgname), dbgname);
+	id = virtio_gpu_context_handle(vgdev);
 	if (id < 0) {
 		kfree(vfpriv);
 		return id;
@@ -276,6 +272,8 @@ int virtio_gpu_driver_open(struct drm_device *dev, struct drm_file *file)
 
 	vfpriv->ctx_id = id;
 	file->driver_priv = vfpriv;
+	virtio_gpu_create_context(dev, file);
+
 	return 0;
 }
 
-- 
2.25.0.225.g125e21ebc7-goog