xref: /openbmc/linux/drivers/gpu/drm/qxl/qxl_prime.c (revision c67e8ec0)
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 "qxl_drv.h"
26 
27 /* Empty Implementations as there should not be any other driver for a virtual
28  * device that might share buffers with qxl */
29 
30 int qxl_gem_prime_pin(struct drm_gem_object *obj)
31 {
32 	WARN_ONCE(1, "not implemented");
33 	return -ENOSYS;
34 }
35 
36 void qxl_gem_prime_unpin(struct drm_gem_object *obj)
37 {
38 	WARN_ONCE(1, "not implemented");
39 }
40 
41 void *qxl_gem_prime_vmap(struct drm_gem_object *obj)
42 {
43 	WARN_ONCE(1, "not implemented");
44 	return ERR_PTR(-ENOSYS);
45 }
46 
47 void qxl_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
48 {
49 	WARN_ONCE(1, "not implemented");
50 }
51 
52 int qxl_gem_prime_mmap(struct drm_gem_object *obj,
53 		       struct vm_area_struct *area)
54 {
55 	WARN_ONCE(1, "not implemented");
56 	return -ENOSYS;
57 }
58