From e39524f150e1e9724596d41753540ce79a739dc1 Mon Sep 17 00:00:00 2001 From: Gurchetan Singh Date: Mon, 24 Feb 2020 16:07:58 -0800 Subject: [PATCH] drm/virtio: factor out context create hypercall We currently create an OpenGL context when opening the DRM fd if 3D is available. We may need other context types (VK,..) in the future, and the plan is to have explicit initialization for that. For explicit initialization to work, we need to factor out virtio_gpu_create_context from driver initialization. v2: Move context handle initialization too (olv) v6: Remove redundant 3D check (emil.velikov) Reviewed-by: Chia-I Wu Reviewed-by: Emil Velikov Signed-off-by: Gurchetan Singh Link: http://patchwork.freedesktop.org/patch/msgid/20200225000800.2966-2-gurchetansingh@chromium.org Signed-off-by: Gerd Hoffmann --- drivers/gpu/drm/virtio/virtgpu_drv.h | 2 ++ drivers/gpu/drm/virtio/virtgpu_ioctl.c | 13 +++++++++++++ drivers/gpu/drm/virtio/virtgpu_kms.c | 26 ++++++-------------------- 3 files changed, 21 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index 2f6c4ccbfd145..72c1d9b59dfe1 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 baad7e1c95051..00ef9fd3fbf6e 100644 --- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c +++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c @@ -33,6 +33,19 @@ #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]; + + get_task_comm(dbgname, current); + virtio_gpu_cmd_context_create(vgdev, vfpriv->ctx_id, + strlen(dbgname), dbgname); + virtio_gpu_notify(vgdev); +} + 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 ad3b673f5796e..f7e3712502ca2 100644 --- a/drivers/gpu/drm/virtio/virtgpu_kms.c +++ b/drivers/gpu/drm/virtio/virtgpu_kms.c @@ -52,19 +52,6 @@ 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) -{ - 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); - virtio_gpu_notify(vgdev); - return handle; -} - static void virtio_gpu_context_destroy(struct virtio_gpu_device *vgdev, uint32_t ctx_id) { @@ -260,8 +247,7 @@ 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]; + int handle; /* can't create contexts without 3d renderer */ if (!vgdev->has_virgl_3d) @@ -272,15 +258,15 @@ 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); - if (id < 0) { + handle = ida_alloc(&vgdev->ctx_id_ida, GFP_KERNEL); + if (handle < 0) { kfree(vfpriv); - return id; + return handle; } - vfpriv->ctx_id = id; + vfpriv->ctx_id = handle + 1; file->driver_priv = vfpriv; + virtio_gpu_create_context(dev, file); return 0; } -- 2.39.5