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
30static 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
46static inline void qxl_bo_unreserve(struct qxl_bo *bo)
47{
48	ttm_bo_unreserve(&bo->tbo);
49}
50
51static inline unsigned long qxl_bo_size(struct qxl_bo *bo)
52{
53	return bo->tbo.num_pages << PAGE_SHIFT;
54}
55
56static inline u64 qxl_bo_mmap_offset(struct qxl_bo *bo)
57{
58	return drm_vma_node_offset_addr(&bo->tbo.base.vma_node);
59}
60
61static inline int qxl_bo_wait(struct qxl_bo *bo, u32 *mem_type,
62			      bool no_wait)
63{
64	int r;
65
66	r = ttm_bo_reserve(&bo->tbo, true, no_wait, NULL);
67	if (unlikely(r != 0)) {
68		if (r != -ERESTARTSYS) {
69			struct drm_device *ddev = bo->tbo.base.dev;
70
71			dev_err(ddev->dev, "%p reserve failed for wait\n",
72				bo);
73		}
74		return r;
75	}
76	if (mem_type)
77		*mem_type = bo->tbo.mem.mem_type;
78
79	r = ttm_bo_wait(&bo->tbo, true, no_wait);
80	ttm_bo_unreserve(&bo->tbo);
81	return r;
82}
83
84extern int qxl_bo_create(struct qxl_device *qdev,
85			 unsigned long size,
86			 bool kernel, bool pinned, u32 domain,
87			 u32 priority,
88			 struct qxl_surface *surf,
89			 struct qxl_bo **bo_ptr);
90extern int qxl_bo_kmap(struct qxl_bo *bo, void **ptr);
91extern void qxl_bo_kunmap(struct qxl_bo *bo);
92void *qxl_bo_kmap_atomic_page(struct qxl_device *qdev, struct qxl_bo *bo, int page_offset);
93void qxl_bo_kunmap_atomic_page(struct qxl_device *qdev, struct qxl_bo *bo, void *map);
94extern struct qxl_bo *qxl_bo_ref(struct qxl_bo *bo);
95extern void qxl_bo_unref(struct qxl_bo **bo);
96extern int qxl_bo_pin(struct qxl_bo *bo);
97extern int qxl_bo_unpin(struct qxl_bo *bo);
98extern void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain, bool pinned);
99extern bool qxl_ttm_bo_is_qxl_bo(struct ttm_buffer_object *bo);
100
101#endif
102