xref: /openbmc/linux/drivers/gpu/drm/qxl/qxl_object.h (revision 2425c81f)
1 /*
2  * Copyright 2013 Red Hat Inc.
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: Dave Airlie
23  *          Alon Levy
24  */
25 #ifndef QXL_OBJECT_H
26 #define QXL_OBJECT_H
27 
28 #include "qxl_drv.h"
29 
30 static inline int qxl_bo_reserve(struct qxl_bo *bo)
31 {
32 	int r;
33 
34 	r = ttm_bo_reserve(&bo->tbo, true, false, NULL);
35 	if (unlikely(r != 0)) {
36 		if (r != -ERESTARTSYS) {
37 			struct drm_device *ddev = bo->tbo.base.dev;
38 
39 			dev_err(ddev->dev, "%p reserve failed\n", bo);
40 		}
41 		return r;
42 	}
43 	return 0;
44 }
45 
46 static inline void qxl_bo_unreserve(struct qxl_bo *bo)
47 {
48 	ttm_bo_unreserve(&bo->tbo);
49 }
50 
51 static inline unsigned long qxl_bo_size(struct qxl_bo *bo)
52 {
53 	return bo->tbo.base.size;
54 }
55 
56 extern int qxl_bo_create(struct qxl_device *qdev,
57 			 unsigned long size,
58 			 bool kernel, bool pinned, u32 domain,
59 			 u32 priority,
60 			 struct qxl_surface *surf,
61 			 struct qxl_bo **bo_ptr);
62 int qxl_bo_vmap(struct qxl_bo *bo, struct iosys_map *map);
63 int qxl_bo_vmap_locked(struct qxl_bo *bo, struct iosys_map *map);
64 int qxl_bo_vunmap(struct qxl_bo *bo);
65 void qxl_bo_vunmap_locked(struct qxl_bo *bo);
66 void *qxl_bo_kmap_atomic_page(struct qxl_device *qdev, struct qxl_bo *bo, int page_offset);
67 void qxl_bo_kunmap_atomic_page(struct qxl_device *qdev, struct qxl_bo *bo, void *map);
68 extern struct qxl_bo *qxl_bo_ref(struct qxl_bo *bo);
69 extern void qxl_bo_unref(struct qxl_bo **bo);
70 extern int qxl_bo_pin(struct qxl_bo *bo);
71 extern int qxl_bo_unpin(struct qxl_bo *bo);
72 extern void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain);
73 extern bool qxl_ttm_bo_is_qxl_bo(struct ttm_buffer_object *bo);
74 
75 #endif
76