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1 | /* |
2 | * Copyright (C) 2008 Maarten Maathuis. | |
3 | * All Rights Reserved. | |
4 | * | |
5 | * Permission is hereby granted, free of charge, to any person obtaining | |
6 | * a copy of this software and associated documentation files (the | |
7 | * "Software"), to deal in the Software without restriction, including | |
8 | * without limitation the rights to use, copy, modify, merge, publish, | |
9 | * distribute, sublicense, and/or sell copies of the Software, and to | |
10 | * permit persons to whom the Software is furnished to do so, subject to | |
11 | * the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice (including the | |
14 | * next paragraph) shall be included in all copies or substantial | |
15 | * portions of the Software. | |
16 | * | |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
18 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | |
20 | * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE | |
21 | * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION | |
22 | * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | |
23 | * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
24 | * | |
25 | */ | |
26 | ||
27 | #include "drmP.h" | |
28 | #include "drm_crtc_helper.h" | |
29 | #include "nouveau_drv.h" | |
30 | #include "nouveau_fb.h" | |
31 | #include "nouveau_fbcon.h" | |
32 | ||
33 | static void | |
34 | nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb) | |
35 | { | |
36 | struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb); | |
6ee73861 | 37 | |
bc9025bd LB |
38 | if (fb->nvbo) |
39 | drm_gem_object_unreference_unlocked(fb->nvbo->gem); | |
6ee73861 BS |
40 | |
41 | drm_framebuffer_cleanup(drm_fb); | |
42 | kfree(fb); | |
43 | } | |
44 | ||
45 | static int | |
46 | nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb, | |
47 | struct drm_file *file_priv, | |
48 | unsigned int *handle) | |
49 | { | |
50 | struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb); | |
51 | ||
52 | return drm_gem_handle_create(file_priv, fb->nvbo->gem, handle); | |
53 | } | |
54 | ||
55 | static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = { | |
56 | .destroy = nouveau_user_framebuffer_destroy, | |
57 | .create_handle = nouveau_user_framebuffer_create_handle, | |
58 | }; | |
59 | ||
38651674 DA |
60 | int |
61 | nouveau_framebuffer_init(struct drm_device *dev, struct nouveau_framebuffer *nouveau_fb, | |
62 | struct drm_mode_fb_cmd *mode_cmd, struct nouveau_bo *nvbo) | |
6ee73861 | 63 | { |
6ee73861 BS |
64 | int ret; |
65 | ||
38651674 | 66 | ret = drm_framebuffer_init(dev, &nouveau_fb->base, &nouveau_framebuffer_funcs); |
6ee73861 | 67 | if (ret) { |
38651674 | 68 | return ret; |
6ee73861 BS |
69 | } |
70 | ||
38651674 DA |
71 | drm_helper_mode_fill_fb_struct(&nouveau_fb->base, mode_cmd); |
72 | nouveau_fb->nvbo = nvbo; | |
73 | return 0; | |
6ee73861 BS |
74 | } |
75 | ||
76 | static struct drm_framebuffer * | |
77 | nouveau_user_framebuffer_create(struct drm_device *dev, | |
78 | struct drm_file *file_priv, | |
79 | struct drm_mode_fb_cmd *mode_cmd) | |
80 | { | |
38651674 | 81 | struct nouveau_framebuffer *nouveau_fb; |
6ee73861 | 82 | struct drm_gem_object *gem; |
38651674 | 83 | int ret; |
6ee73861 BS |
84 | |
85 | gem = drm_gem_object_lookup(dev, file_priv, mode_cmd->handle); | |
86 | if (!gem) | |
cce13ff7 | 87 | return ERR_PTR(-ENOENT); |
6ee73861 | 88 | |
38651674 DA |
89 | nouveau_fb = kzalloc(sizeof(struct nouveau_framebuffer), GFP_KERNEL); |
90 | if (!nouveau_fb) | |
cce13ff7 | 91 | return ERR_PTR(-ENOMEM); |
38651674 DA |
92 | |
93 | ret = nouveau_framebuffer_init(dev, nouveau_fb, mode_cmd, nouveau_gem_object(gem)); | |
94 | if (ret) { | |
6ee73861 | 95 | drm_gem_object_unreference(gem); |
cce13ff7 | 96 | return ERR_PTR(ret); |
6ee73861 BS |
97 | } |
98 | ||
38651674 | 99 | return &nouveau_fb->base; |
6ee73861 BS |
100 | } |
101 | ||
102 | const struct drm_mode_config_funcs nouveau_mode_config_funcs = { | |
103 | .fb_create = nouveau_user_framebuffer_create, | |
eb1f8e4f | 104 | .output_poll_changed = nouveau_fbcon_output_poll_changed, |
6ee73861 BS |
105 | }; |
106 |