linux-stable/drivers/gpu/drm/virtio/virtgpu_prime.c
Dave Airlie 11a8f2805d virtio-gpu: add basic prime support
This is enough to enable DRI3.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-10-16 10:44:02 +02:00

71 lines
2.2 KiB
C

/*
* Copyright 2014 Canonical
*
* 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.
*
* Authors: Andreas Pokorny
*/
#include "virtgpu_drv.h"
/* Empty Implementations as there should not be any other driver for a virtual
* device that might share buffers with virtgpu */
int virtgpu_gem_prime_pin(struct drm_gem_object *obj)
{
WARN_ONCE(1, "not implemented");
return -ENODEV;
}
void virtgpu_gem_prime_unpin(struct drm_gem_object *obj)
{
WARN_ONCE(1, "not implemented");
}
struct sg_table *virtgpu_gem_prime_get_sg_table(struct drm_gem_object *obj)
{
WARN_ONCE(1, "not implemented");
return ERR_PTR(-ENODEV);
}
struct drm_gem_object *virtgpu_gem_prime_import_sg_table(
struct drm_device *dev, struct dma_buf_attachment *attach,
struct sg_table *table)
{
WARN_ONCE(1, "not implemented");
return ERR_PTR(-ENODEV);
}
void *virtgpu_gem_prime_vmap(struct drm_gem_object *obj)
{
WARN_ONCE(1, "not implemented");
return ERR_PTR(-ENODEV);
}
void virtgpu_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
{
WARN_ONCE(1, "not implemented");
}
int virtgpu_gem_prime_mmap(struct drm_gem_object *obj,
struct vm_area_struct *area)
{
return -ENODEV;
}