1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
/*
* 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");
}
void *virtgpu_gem_prime_vmap(struct drm_gem_object *obj)
{
struct virtio_gpu_object *bo = gem_to_virtio_gpu_obj(obj);
int ret;
ret = virtio_gpu_object_kmap(bo);
if (ret)
return NULL;
return bo->vmap;
}
void virtgpu_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
{
virtio_gpu_object_kunmap(gem_to_virtio_gpu_obj(obj));
}
int virtgpu_gem_prime_mmap(struct drm_gem_object *obj,
struct vm_area_struct *area)
{
return -ENODEV;
}
|
