/*
 * Copyright (C) 2015 Red Hat, Inc.
 * All Rights Reserved.
 *
 * Authors:
 *    Dave Airlie
 *    Alon Levy
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

#include <linux/file.h>
#include <linux/sync_file.h>
#include <linux/uaccess.h>

#include <drm/drm_file.h>
#include <drm/virtgpu_drm.h>

#include "virtgpu_drv.h"

#define VIRTGPU_BLOB_FLAG_USE_MASK (VIRTGPU_BLOB_FLAG_USE_MAPPABLE | \
                                    VIRTGPU_BLOB_FLAG_USE_SHAREABLE | \
                                    VIRTGPU_BLOB_FLAG_USE_CROSS_DEVICE)

/* Must be called with &virtio_gpu_fpriv.struct_mutex held. */
static void virtio_gpu_create_context_locked(struct virtio_gpu_device *vgdev,
                                             struct virtio_gpu_fpriv *vfpriv)
{
        if (vfpriv->explicit_debug_name) {
                virtio_gpu_cmd_context_create(vgdev, vfpriv->ctx_id,
                                              vfpriv->context_init,
                                              strlen(vfpriv->debug_name),
                                              vfpriv->debug_name);
        } else {
                char dbgname[TASK_COMM_LEN];

                get_task_comm(dbgname, current);
                virtio_gpu_cmd_context_create(vgdev, vfpriv->ctx_id,
                                              vfpriv->context_init, strlen(dbgname),
                                              dbgname);
        }

        vfpriv->context_created = true;
}

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;

        mutex_lock(&vfpriv->context_lock);
        if (vfpriv->context_created)
                goto out_unlock;

        virtio_gpu_create_context_locked(vgdev, vfpriv);

out_unlock:
        mutex_unlock(&vfpriv->context_lock);
}

static int virtio_gpu_map_ioctl(struct drm_device *dev, void *data,
                                struct drm_file *file)
{
        struct virtio_gpu_device *vgdev = dev->dev_private;
        struct drm_virtgpu_map *virtio_gpu_map = data;

        return drm_gem_dumb_map_offset(file, vgdev->ddev,
                                       virtio_gpu_map->handle,
                                       &virtio_gpu_map->offset);
}

static int virtio_gpu_getparam_ioctl(struct drm_device *dev, void *data,
                                     struct drm_file *file)
{
        struct virtio_gpu_device *vgdev = dev->dev_private;
        struct drm_virtgpu_getparam *param = data;
        int value;

        switch (param->param) {
        case VIRTGPU_PARAM_3D_FEATURES:
                value = vgdev->has_virgl_3d ? 1 : 0;
                break;
        case VIRTGPU_PARAM_CAPSET_QUERY_FIX:
                value = 1;
                break;
        case VIRTGPU_PARAM_RESOURCE_BLOB:
                value = vgdev->has_resource_blob ? 1 : 0;
                break;
        case VIRTGPU_PARAM_HOST_VISIBLE:
                value = vgdev->has_host_visible ? 1 : 0;
                break;
        case VIRTGPU_PARAM_CROSS_DEVICE:
                value = vgdev->has_resource_assign_uuid ? 1 : 0;
                break;
        case VIRTGPU_PARAM_CONTEXT_INIT:
                value = vgdev->has_context_init ? 1 : 0;
                break;
        case VIRTGPU_PARAM_SUPPORTED_CAPSET_IDs:
                value = vgdev->capset_id_mask;
                break;
        case VIRTGPU_PARAM_EXPLICIT_DEBUG_NAME:
                value = vgdev->has_context_init ? 1 : 0;
                break;
        default:
                return -EINVAL;
        }
        if (copy_to_user(u64_to_user_ptr(param->value), &value, sizeof(int)))
                return -EFAULT;

        return 0;
}

static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
                                            struct drm_file *file)
{
        struct virtio_gpu_device *vgdev = dev->dev_private;
        struct drm_virtgpu_resource_create *rc = data;
        struct virtio_gpu_fence *fence;
        int ret;
        struct virtio_gpu_object *qobj;
        struct drm_gem_object *obj;
        uint32_t handle = 0;
        struct virtio_gpu_object_params params = { 0 };

        if (vgdev->has_virgl_3d) {
                virtio_gpu_create_context(dev, file);
                params.virgl = true;
                params.target = rc->target;
                params.bind = rc->bind;
                params.depth = rc->depth;
                params.array_size = rc->array_size;
                params.last_level = rc->last_level;
                params.nr_samples = rc->nr_samples;
                params.flags = rc->flags;
        } else {
                if (rc->depth > 1)
                        return -EINVAL;
                if (rc->nr_samples > 1)
                        return -EINVAL;
                if (rc->last_level > 1)
                        return -EINVAL;
                if (rc->target != 2)
                        return -EINVAL;
                if (rc->array_size > 1)
                        return -EINVAL;
        }

        params.format = rc->format;
        params.width = rc->width;
        params.height = rc->height;
        params.size = rc->size;
        /* allocate a single page size object */
        if (params.size == 0)
                params.size = PAGE_SIZE;

        fence = virtio_gpu_fence_alloc(vgdev, vgdev->fence_drv.context, 0);
        if (!fence)
                return -ENOMEM;
        ret = virtio_gpu_object_create(vgdev, &params, &qobj, fence);
        dma_fence_put(&fence->f);
        if (ret < 0)
                return ret;
        obj = &qobj->base.base;

        ret = drm_gem_handle_create(file, obj, &handle);
        if (ret) {
                drm_gem_object_release(obj);
                return ret;
        }

        rc->res_handle = qobj->hw_res_handle; /* similiar to a VM address */
        rc->bo_handle = handle;

        /*
         * The handle owns the reference now.  But we must drop our
         * remaining reference *after* we no longer need to dereference
         * the obj.  Otherwise userspace could guess the handle and
         * race closing it from another thread.
         */
        drm_gem_object_put(obj);

        return 0;
}

static int virtio_gpu_resource_info_ioctl(struct drm_device *dev, void *data,
                                          struct drm_file *file)
{
        struct drm_virtgpu_resource_info *ri = data;
        struct drm_gem_object *gobj = NULL;
        struct virtio_gpu_object *qobj = NULL;

        gobj = drm_gem_object_lookup(file, ri->bo_handle);
        if (gobj == NULL)
                return -ENOENT;

        qobj = gem_to_virtio_gpu_obj(gobj);

        ri->size = qobj->base.base.size;
        ri->res_handle = qobj->hw_res_handle;
        if (qobj->host3d_blob || qobj->guest_blob)
                ri->blob_mem = qobj->blob_mem;

        drm_gem_object_put(gobj);
        return 0;
}

static int virtio_gpu_transfer_from_host_ioctl(struct drm_device *dev,
                                               void *data,
                                               struct drm_file *file)
{
        struct virtio_gpu_device *vgdev = dev->dev_private;
        struct virtio_gpu_fpriv *vfpriv = file->driver_priv;
        struct drm_virtgpu_3d_transfer_from_host *args = data;
        struct virtio_gpu_object *bo;
        struct virtio_gpu_object_array *objs;
        struct virtio_gpu_fence *fence;
        int ret;
        u32 offset = args->offset;

        if (vgdev->has_virgl_3d == false)
                return -ENOSYS;

        virtio_gpu_create_context(dev, file);
        objs = virtio_gpu_array_from_handles(file, &args->bo_handle, 1);
        if (objs == NULL)
                return -ENOENT;

        bo = gem_to_virtio_gpu_obj(objs->objs[0]);
        if (bo->guest_blob && !bo->host3d_blob) {
                ret = -EINVAL;
                goto err_put_free;
        }

        if (!bo->host3d_blob && (args->stride || args->layer_stride)) {
                ret = -EINVAL;
                goto err_put_free;
        }

        ret = virtio_gpu_array_lock_resv(objs);
        if (ret != 0)
                goto err_put_free;

        fence = virtio_gpu_fence_alloc(vgdev, vgdev->fence_drv.context, 0);
        if (!fence) {
                ret = -ENOMEM;
                goto err_unlock;
        }

        virtio_gpu_cmd_transfer_from_host_3d
                (vgdev, vfpriv->ctx_id, offset, args->level, args->stride,
                 args->layer_stride, &args->box, objs, fence);
        dma_fence_put(&fence->f);
        virtio_gpu_notify(vgdev);
        return 0;

err_unlock:
        virtio_gpu_array_unlock_resv(objs);
err_put_free:
        virtio_gpu_array_put_free(objs);
        return ret;
}

static int virtio_gpu_transfer_to_host_ioctl(struct drm_device *dev, void *data,
                                             struct drm_file *file)
{
        struct virtio_gpu_device *vgdev = dev->dev_private;
        struct virtio_gpu_fpriv *vfpriv = file->driver_priv;
        struct drm_virtgpu_3d_transfer_to_host *args = data;
        struct virtio_gpu_object *bo;
        struct virtio_gpu_object_array *objs;
        struct virtio_gpu_fence *fence;
        int ret;
        u32 offset = args->offset;

        objs = virtio_gpu_array_from_handles(file, &args->bo_handle, 1);
        if (objs == NULL)
                return -ENOENT;

        bo = gem_to_virtio_gpu_obj(objs->objs[0]);
        if (bo->guest_blob && !bo->host3d_blob) {
                ret = -EINVAL;
                goto err_put_free;
        }

        if (!vgdev->has_virgl_3d) {
                virtio_gpu_cmd_transfer_to_host_2d
                        (vgdev, offset,
                         args->box.w, args->box.h, args->box.x, args->box.y,
                         objs, NULL);
        } else {
                virtio_gpu_create_context(dev, file);

                if (!bo->host3d_blob && (args->stride || args->layer_stride)) {
                        ret = -EINVAL;
                        goto err_put_free;
                }

                ret = virtio_gpu_array_lock_resv(objs);
                if (ret != 0)
                        goto err_put_free;

                ret = -ENOMEM;
                fence = virtio_gpu_fence_alloc(vgdev, vgdev->fence_drv.context,
                                               0);
                if (!fence)
                        goto err_unlock;

                virtio_gpu_cmd_transfer_to_host_3d
                        (vgdev,
                         vfpriv ? vfpriv->ctx_id : 0, offset, args->level,
                         args->stride, args->layer_stride, &args->box, objs,
                         fence);
                dma_fence_put(&fence->f);
        }
        virtio_gpu_notify(vgdev);
        return 0;

err_unlock:
        virtio_gpu_array_unlock_resv(objs);
err_put_free:
        virtio_gpu_array_put_free(objs);
        return ret;
}

static int virtio_gpu_wait_ioctl(struct drm_device *dev, void *data,
                                 struct drm_file *file)
{
        struct drm_virtgpu_3d_wait *args = data;
        struct drm_gem_object *obj;
        long timeout = 15 * HZ;
        int ret;

        obj = drm_gem_object_lookup(file, args->handle);
        if (obj == NULL)
                return -ENOENT;

        if (args->flags & VIRTGPU_WAIT_NOWAIT) {
                ret = dma_resv_test_signaled(obj->resv, DMA_RESV_USAGE_READ);
        } else {
                ret = dma_resv_wait_timeout(obj->resv, DMA_RESV_USAGE_READ,
                                            true, timeout);
        }
        if (ret == 0)
                ret = -EBUSY;
        else if (ret > 0)
                ret = 0;

        drm_gem_object_put(obj);
        return ret;
}

static int virtio_gpu_get_caps_ioctl(struct drm_device *dev,
                                void *data, struct drm_file *file)
{
        struct virtio_gpu_device *vgdev = dev->dev_private;
        struct drm_virtgpu_get_caps *args = data;
        unsigned size, host_caps_size;
        int i;
        int found_valid = -1;
        int ret;
        struct virtio_gpu_drv_cap_cache *cache_ent;
        void *ptr;

        if (vgdev->num_capsets == 0)
                return -ENOSYS;

        /* don't allow userspace to pass 0 */
        if (args->size == 0)
                return -EINVAL;

        spin_lock(&vgdev->display_info_lock);
        for (i = 0; i < vgdev->num_capsets; i++) {
                if (vgdev->capsets[i].id == args->cap_set_id) {
                        if (vgdev->capsets[i].max_version >= args->cap_set_ver) {
                                found_valid = i;
                                break;
                        }
                }
        }

        if (found_valid == -1) {
                spin_unlock(&vgdev->display_info_lock);
                return -EINVAL;
        }

        host_caps_size = vgdev->capsets[found_valid].max_size;
        /* only copy to user the minimum of the host caps size or the guest caps size */
        size = min(args->size, host_caps_size);

        list_for_each_entry(cache_ent, &vgdev->cap_cache, head) {
                if (cache_ent->id == args->cap_set_id &&
                    cache_ent->version == args->cap_set_ver) {
                        spin_unlock(&vgdev->display_info_lock);
                        goto copy_exit;
                }
        }
        spin_unlock(&vgdev->display_info_lock);

        /* not in cache - need to talk to hw */
        ret = virtio_gpu_cmd_get_capset(vgdev, found_valid, args->cap_set_ver,
                                        &cache_ent);
        if (ret)
                return ret;
        virtio_gpu_notify(vgdev);

copy_exit:
        ret = wait_event_timeout(vgdev->resp_wq,
                                 atomic_read(&cache_ent->is_valid), 5 * HZ);
        if (!ret)
                return -EBUSY;

        /* is_valid check must proceed before copy of the cache entry. */
        smp_rmb();

        ptr = cache_ent->caps_cache;

        if (copy_to_user(u64_to_user_ptr(args->addr), ptr, size))
                return -EFAULT;

        return 0;
}

static int verify_blob(struct virtio_gpu_device *vgdev,
                       struct virtio_gpu_fpriv *vfpriv,
                       struct virtio_gpu_object_params *params,
                       struct drm_virtgpu_resource_create_blob *rc_blob,
                       bool *guest_blob, bool *host3d_blob)
{
        if (!vgdev->has_resource_blob)
                return -EINVAL;

        if (rc_blob->blob_flags & ~VIRTGPU_BLOB_FLAG_USE_MASK)
                return -EINVAL;

        if (rc_blob->blob_flags & VIRTGPU_BLOB_FLAG_USE_CROSS_DEVICE) {
                if (!vgdev->has_resource_assign_uuid)
                        return -EINVAL;
        }

        switch (rc_blob->blob_mem) {
        case VIRTGPU_BLOB_MEM_GUEST:
                *guest_blob = true;
                break;
        case VIRTGPU_BLOB_MEM_HOST3D_GUEST:
                *guest_blob = true;
                fallthrough;
        case VIRTGPU_BLOB_MEM_HOST3D:
                *host3d_blob = true;
                break;
        default:
                return -EINVAL;
        }

        if (*host3d_blob) {
                if (!vgdev->has_virgl_3d)
                        return -EINVAL;

                /* Must be dword aligned. */
                if (rc_blob->cmd_size % 4 != 0)
                        return -EINVAL;

                params->ctx_id = vfpriv->ctx_id;
                params->blob_id = rc_blob->blob_id;
        } else {
                if (rc_blob->blob_id != 0)
                        return -EINVAL;

                if (rc_blob->cmd_size != 0)
                        return -EINVAL;
        }

        params->blob_mem = rc_blob->blob_mem;
        params->size = rc_blob->size;
        params->blob = true;
        params->blob_flags = rc_blob->blob_flags;
        return 0;
}

static int virtio_gpu_resource_create_blob_ioctl(struct drm_device *dev,
                                                 void *data,
                                                 struct drm_file *file)
{
        int ret = 0;
        uint32_t handle = 0;
        bool guest_blob = false;
        bool host3d_blob = false;
        struct drm_gem_object *obj;
        struct virtio_gpu_object *bo;
        struct virtio_gpu_object_params params = { 0 };
        struct virtio_gpu_device *vgdev = dev->dev_private;
        struct virtio_gpu_fpriv *vfpriv = file->driver_priv;
        struct drm_virtgpu_resource_create_blob *rc_blob = data;

        if (verify_blob(vgdev, vfpriv, &params, rc_blob,
                        &guest_blob, &host3d_blob))
                return -EINVAL;

        if (vgdev->has_virgl_3d)
                virtio_gpu_create_context(dev, file);

        if (rc_blob->cmd_size) {
                void *buf;

                buf = memdup_user(u64_to_user_ptr(rc_blob->cmd),
                                  rc_blob->cmd_size);

                if (IS_ERR(buf))
                        return PTR_ERR(buf);

                virtio_gpu_cmd_submit(vgdev, buf, rc_blob->cmd_size,
                                      vfpriv->ctx_id, NULL, NULL);
        }

        if (guest_blob)
                ret = virtio_gpu_object_create(vgdev, &params, &bo, NULL);
        else if (!guest_blob && host3d_blob)
                ret = virtio_gpu_vram_create(vgdev, &params, &bo);
        else
                return -EINVAL;

        if (ret < 0)
                return ret;

        bo->guest_blob = guest_blob;
        bo->host3d_blob = host3d_blob;
        bo->blob_mem = rc_blob->blob_mem;
        bo->blob_flags = rc_blob->blob_flags;

        obj = &bo->base.base;
        if (params.blob_flags & VIRTGPU_BLOB_FLAG_USE_CROSS_DEVICE) {
                ret = virtio_gpu_resource_assign_uuid(vgdev, bo);
                if (ret) {
                        drm_gem_object_release(obj);
                        return ret;
                }
        }

        ret = drm_gem_handle_create(file, obj, &handle);
        if (ret) {
                drm_gem_object_release(obj);
                return ret;
        }

        rc_blob->res_handle = bo->hw_res_handle;
        rc_blob->bo_handle = handle;

        /*
         * The handle owns the reference now.  But we must drop our
         * remaining reference *after* we no longer need to dereference
         * the obj.  Otherwise userspace could guess the handle and
         * race closing it from another thread.
         */
        drm_gem_object_put(obj);

        return 0;
}

static int virtio_gpu_context_init_ioctl(struct drm_device *dev,
                                         void *data, struct drm_file *file)
{
        int ret = 0;
        uint32_t num_params, i;
        uint64_t valid_ring_mask, param, value;
        size_t len;
        struct drm_virtgpu_context_set_param *ctx_set_params = NULL;
        struct virtio_gpu_device *vgdev = dev->dev_private;
        struct virtio_gpu_fpriv *vfpriv = file->driver_priv;
        struct drm_virtgpu_context_init *args = data;

        num_params = args->num_params;
        len = num_params * sizeof(struct drm_virtgpu_context_set_param);

        if (!vgdev->has_context_init || !vgdev->has_virgl_3d)
                return -EINVAL;

        /* Number of unique parameters supported at this time. */
        if (num_params > 4)
                return -EINVAL;

        ctx_set_params = memdup_user(u64_to_user_ptr(args->ctx_set_params),
                                     len);

        if (IS_ERR(ctx_set_params))
                return PTR_ERR(ctx_set_params);

        mutex_lock(&vfpriv->context_lock);
        if (vfpriv->context_created) {
                ret = -EEXIST;
                goto out_unlock;
        }

        for (i = 0; i < num_params; i++) {
                param = ctx_set_params[i].param;
                value = ctx_set_params[i].value;

                switch (param) {
                case VIRTGPU_CONTEXT_PARAM_CAPSET_ID:
                        if (value > MAX_CAPSET_ID) {
                                ret = -EINVAL;
                                goto out_unlock;
                        }

                        if ((vgdev->capset_id_mask & (1ULL << value)) == 0) {
                                ret = -EINVAL;
                                goto out_unlock;
                        }

                        /* Context capset ID already set */
                        if (vfpriv->context_init &
                            VIRTIO_GPU_CONTEXT_INIT_CAPSET_ID_MASK) {
                                ret = -EINVAL;
                                goto out_unlock;
                        }

                        vfpriv->context_init |= value;
                        break;
                case VIRTGPU_CONTEXT_PARAM_NUM_RINGS:
                        if (vfpriv->base_fence_ctx) {
                                ret = -EINVAL;
                                goto out_unlock;
                        }

                        if (value > MAX_RINGS) {
                                ret = -EINVAL;
                                goto out_unlock;
                        }

                        vfpriv->base_fence_ctx = dma_fence_context_alloc(value);
                        vfpriv->num_rings = value;
                        break;
                case VIRTGPU_CONTEXT_PARAM_POLL_RINGS_MASK:
                        if (vfpriv->ring_idx_mask) {
                                ret = -EINVAL;
                                goto out_unlock;
                        }

                        vfpriv->ring_idx_mask = value;
                        break;
                case VIRTGPU_CONTEXT_PARAM_DEBUG_NAME:
                        if (vfpriv->explicit_debug_name) {
                                ret = -EINVAL;
                                goto out_unlock;
                        }

                        ret = strncpy_from_user(vfpriv->debug_name,
                                                u64_to_user_ptr(value),
                                                DEBUG_NAME_MAX_LEN - 1);
                        if (ret < 0)
                                goto out_unlock;

                        vfpriv->explicit_debug_name = true;
                        ret = 0;
                        break;
                default:
                        ret = -EINVAL;
                        goto out_unlock;
                }
        }

        if (vfpriv->ring_idx_mask) {
                valid_ring_mask = 0;
                for (i = 0; i < vfpriv->num_rings; i++)
                        valid_ring_mask |= 1ULL << i;

                if (~valid_ring_mask & vfpriv->ring_idx_mask) {
                        ret = -EINVAL;
                        goto out_unlock;
                }
        }

        virtio_gpu_create_context_locked(vgdev, vfpriv);
        virtio_gpu_notify(vgdev);

out_unlock:
        mutex_unlock(&vfpriv->context_lock);
        kfree(ctx_set_params);
        return ret;
}

struct drm_ioctl_desc virtio_gpu_ioctls[DRM_VIRTIO_NUM_IOCTLS] = {
        DRM_IOCTL_DEF_DRV(VIRTGPU_MAP, virtio_gpu_map_ioctl,
                          DRM_RENDER_ALLOW),

        DRM_IOCTL_DEF_DRV(VIRTGPU_EXECBUFFER, virtio_gpu_execbuffer_ioctl,
                          DRM_RENDER_ALLOW),

        DRM_IOCTL_DEF_DRV(VIRTGPU_GETPARAM, virtio_gpu_getparam_ioctl,
                          DRM_RENDER_ALLOW),

        DRM_IOCTL_DEF_DRV(VIRTGPU_RESOURCE_CREATE,
                          virtio_gpu_resource_create_ioctl,
                          DRM_RENDER_ALLOW),

        DRM_IOCTL_DEF_DRV(VIRTGPU_RESOURCE_INFO, virtio_gpu_resource_info_ioctl,
                          DRM_RENDER_ALLOW),

        /* make transfer async to the main ring? - no sure, can we
         * thread these in the underlying GL
         */
        DRM_IOCTL_DEF_DRV(VIRTGPU_TRANSFER_FROM_HOST,
                          virtio_gpu_transfer_from_host_ioctl,
                          DRM_RENDER_ALLOW),
        DRM_IOCTL_DEF_DRV(VIRTGPU_TRANSFER_TO_HOST,
                          virtio_gpu_transfer_to_host_ioctl,
                          DRM_RENDER_ALLOW),

        DRM_IOCTL_DEF_DRV(VIRTGPU_WAIT, virtio_gpu_wait_ioctl,
                          DRM_RENDER_ALLOW),

        DRM_IOCTL_DEF_DRV(VIRTGPU_GET_CAPS, virtio_gpu_get_caps_ioctl,
                          DRM_RENDER_ALLOW),

        DRM_IOCTL_DEF_DRV(VIRTGPU_RESOURCE_CREATE_BLOB,
                          virtio_gpu_resource_create_blob_ioctl,
                          DRM_RENDER_ALLOW),

        DRM_IOCTL_DEF_DRV(VIRTGPU_CONTEXT_INIT, virtio_gpu_context_init_ioctl,
                          DRM_RENDER_ALLOW),
};