amdgpu_pixmap.h revision 504d986f 
1/*
2 * Copyright © 2014 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including
13 * the next paragraph) shall be included in all copies or substantial
14 * portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
20 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
21 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23 * DEALINGS IN THE SOFTWARE.
24 */
25
26#ifndef AMDGPU_PIXMAP_H
27#define AMDGPU_PIXMAP_H
28
29#include "amdgpu_drv.h"
30
31struct amdgpu_pixmap {
32	uint_fast32_t gpu_read;
33	uint_fast32_t gpu_write;
34
35	uint64_t tiling_info;
36
37	struct amdgpu_buffer *bo;
38
39	/* GEM handle for pixmaps shared via DRI2/3 */
40	Bool handle_valid;
41	uint32_t handle;
42};
43
44extern DevPrivateKeyRec amdgpu_pixmap_index;
45
46static inline struct amdgpu_pixmap *amdgpu_get_pixmap_private(PixmapPtr pixmap)
47{
48	return dixGetPrivate(&pixmap->devPrivates, &amdgpu_pixmap_index);
49}
50
51static inline void amdgpu_set_pixmap_private(PixmapPtr pixmap,
52					     struct amdgpu_pixmap *priv)
53{
54	dixSetPrivate(&pixmap->devPrivates, &amdgpu_pixmap_index, priv);
55}
56
57static inline Bool amdgpu_set_pixmap_bo(PixmapPtr pPix, struct amdgpu_buffer *bo)
58{
59	struct amdgpu_pixmap *priv;
60
61	priv = amdgpu_get_pixmap_private(pPix);
62	if (priv == NULL && bo == NULL)
63		return TRUE;
64
65	if (priv) {
66		if (priv->bo) {
67			if (priv->bo == bo)
68				return TRUE;
69
70			amdgpu_bo_unref(&priv->bo);
71			priv->handle_valid = FALSE;
72		}
73
74		if (!bo) {
75			free(priv);
76			priv = NULL;
77		}
78	}
79
80	if (bo) {
81		if (!priv) {
82			priv = calloc(1, sizeof(struct amdgpu_pixmap));
83			if (!priv)
84				return FALSE;
85		}
86		amdgpu_bo_ref(bo);
87		priv->bo = bo;
88	}
89
90	amdgpu_set_pixmap_private(pPix, priv);
91	return TRUE;
92}
93
94static inline struct amdgpu_buffer *amdgpu_get_pixmap_bo(PixmapPtr pPix)
95{
96	struct amdgpu_pixmap *priv;
97	priv = amdgpu_get_pixmap_private(pPix);
98	return priv ? priv->bo : NULL;
99}
100
101enum {
102	AMDGPU_CREATE_PIXMAP_DRI2    = 0x08000000,
103	AMDGPU_CREATE_PIXMAP_LINEAR  = 0x04000000,
104	AMDGPU_CREATE_PIXMAP_SCANOUT = 0x02000000,
105	AMDGPU_CREATE_PIXMAP_GTT     = 0x01000000,
106};
107
108extern Bool amdgpu_pixmap_init(ScreenPtr screen);
109
110#endif /* AMDGPU_PIXMAP_H */
111