1 /* $NetBSD: qxl_prime.c,v 1.3 2021/12/18 23:45:42 riastradh Exp $ */
2
3 /*
4 * Copyright 2014 Canonical
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Andreas Pokorny
25 */
26
27 #include <sys/cdefs.h>
28 __KERNEL_RCSID(0, "$NetBSD: qxl_prime.c,v 1.3 2021/12/18 23:45:42 riastradh Exp $");
29
30 #include "qxl_drv.h"
31 #include "qxl_object.h"
32
33 /* Empty Implementations as there should not be any other driver for a virtual
34 * device that might share buffers with qxl */
35
qxl_gem_prime_pin(struct drm_gem_object * obj)36 int qxl_gem_prime_pin(struct drm_gem_object *obj)
37 {
38 struct qxl_bo *bo = gem_to_qxl_bo(obj);
39
40 return qxl_bo_pin(bo);
41 }
42
qxl_gem_prime_unpin(struct drm_gem_object * obj)43 void qxl_gem_prime_unpin(struct drm_gem_object *obj)
44 {
45 struct qxl_bo *bo = gem_to_qxl_bo(obj);
46
47 qxl_bo_unpin(bo);
48 }
49
qxl_gem_prime_get_sg_table(struct drm_gem_object * obj)50 struct sg_table *qxl_gem_prime_get_sg_table(struct drm_gem_object *obj)
51 {
52 return ERR_PTR(-ENOSYS);
53 }
54
qxl_gem_prime_import_sg_table(struct drm_device * dev,struct dma_buf_attachment * attach,struct sg_table * table)55 struct drm_gem_object *qxl_gem_prime_import_sg_table(
56 struct drm_device *dev, struct dma_buf_attachment *attach,
57 struct sg_table *table)
58 {
59 return ERR_PTR(-ENOSYS);
60 }
61
qxl_gem_prime_vmap(struct drm_gem_object * obj)62 void *qxl_gem_prime_vmap(struct drm_gem_object *obj)
63 {
64 struct qxl_bo *bo = gem_to_qxl_bo(obj);
65 void *ptr;
66 int ret;
67
68 ret = qxl_bo_kmap(bo, &ptr);
69 if (ret < 0)
70 return ERR_PTR(ret);
71
72 return ptr;
73 }
74
qxl_gem_prime_vunmap(struct drm_gem_object * obj,void * vaddr)75 void qxl_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
76 {
77 struct qxl_bo *bo = gem_to_qxl_bo(obj);
78
79 qxl_bo_kunmap(bo);
80 }
81
qxl_gem_prime_mmap(struct drm_gem_object * obj,struct vm_area_struct * area)82 int qxl_gem_prime_mmap(struct drm_gem_object *obj,
83 struct vm_area_struct *area)
84 {
85 return -ENOSYS;
86 }
87