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 #include "qxl_object.h"
27 
28 /* Empty Implementations as there should not be any other driver for a virtual
29  * device that might share buffers with qxl */
30 
qxl_gem_prime_pin(struct drm_gem_object * obj)31 int qxl_gem_prime_pin(struct drm_gem_object *obj)
32 {
33 	struct qxl_bo *bo = gem_to_qxl_bo(obj);
34 
35 	return qxl_bo_pin(bo);
36 }
37 
qxl_gem_prime_unpin(struct drm_gem_object * obj)38 void qxl_gem_prime_unpin(struct drm_gem_object *obj)
39 {
40 	struct qxl_bo *bo = gem_to_qxl_bo(obj);
41 
42 	qxl_bo_unpin(bo);
43 }
44 
qxl_gem_prime_get_sg_table(struct drm_gem_object * obj)45 struct sg_table *qxl_gem_prime_get_sg_table(struct drm_gem_object *obj)
46 {
47 	return ERR_PTR(-ENOSYS);
48 }
49 
qxl_gem_prime_import_sg_table(struct drm_device * dev,struct dma_buf_attachment * attach,struct sg_table * table)50 struct drm_gem_object *qxl_gem_prime_import_sg_table(
51 	struct drm_device *dev, struct dma_buf_attachment *attach,
52 	struct sg_table *table)
53 {
54 	return ERR_PTR(-ENOSYS);
55 }
56 
qxl_gem_prime_vmap(struct drm_gem_object * obj,struct dma_buf_map * map)57 int qxl_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map)
58 {
59 	struct qxl_bo *bo = gem_to_qxl_bo(obj);
60 	int ret;
61 
62 	ret = qxl_bo_vmap(bo, map);
63 	if (ret < 0)
64 		return ret;
65 
66 	return 0;
67 }
68 
qxl_gem_prime_vunmap(struct drm_gem_object * obj,struct dma_buf_map * map)69 void qxl_gem_prime_vunmap(struct drm_gem_object *obj,
70 			  struct dma_buf_map *map)
71 {
72 	struct qxl_bo *bo = gem_to_qxl_bo(obj);
73 
74 	qxl_bo_vunmap(bo);
75 }
76