LXR linux/drivers/gpu/drm/virtio/virtgpu

   1/*
   2 * Copyright 2014 Canonical
   3 *
   4 * Permission is hereby granted, free of charge, to any person obtaining a
   5 * copy of this software and associated documentation files (the "Software"),
   6 * to deal in the Software without restriction, including without limitation
   7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 * and/or sell copies of the Software, and to permit persons to whom the
   9 * Software is furnished to do so, subject to the following conditions:
  10 *
  11 * The above copyright notice and this permission notice shall be included in
  12 * all copies or substantial portions of the Software.
  13 *
  14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20 * OTHER DEALINGS IN THE SOFTWARE.
  21 *
  22 * Authors: Andreas Pokorny
  23 */
  24
  25#include "virtgpu_drv.h"
  26
  27/* Empty Implementations as there should not be any other driver for a virtual
  28 * device that might share buffers with virtgpu
  29 */
  30
  31int virtgpu_gem_prime_pin(struct drm_gem_object *obj)
  32{
  33        WARN_ONCE(1, "not implemented");
  34        return -ENODEV;
  35}
  36
  37void virtgpu_gem_prime_unpin(struct drm_gem_object *obj)
  38{
  39        WARN_ONCE(1, "not implemented");
  40}
  41
  42struct sg_table *virtgpu_gem_prime_get_sg_table(struct drm_gem_object *obj)
  43{
  44        WARN_ONCE(1, "not implemented");
  45        return ERR_PTR(-ENODEV);
  46}
  47
  48struct drm_gem_object *virtgpu_gem_prime_import_sg_table(
  49        struct drm_device *dev, struct dma_buf_attachment *attach,
  50        struct sg_table *table)
  51{
  52        WARN_ONCE(1, "not implemented");
  53        return ERR_PTR(-ENODEV);
  54}
  55
  56void *virtgpu_gem_prime_vmap(struct drm_gem_object *obj)
  57{
  58        WARN_ONCE(1, "not implemented");
  59        return ERR_PTR(-ENODEV);
  60}
  61
  62void virtgpu_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
  63{
  64        WARN_ONCE(1, "not implemented");
  65}
  66
  67int virtgpu_gem_prime_mmap(struct drm_gem_object *obj,
  68                       struct vm_area_struct *area)
  69{
  70        return -ENODEV;
  71}
  72