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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); | |
37 | struct drm_device *dev = drm_fb->dev; | |
38 | ||
39 | if (drm_fb->fbdev) | |
40 | nouveau_fbcon_remove(dev, drm_fb); | |
41 | ||
42 | if (fb->nvbo) { | |
43 | mutex_lock(&dev->struct_mutex); | |
44 | drm_gem_object_unreference(fb->nvbo->gem); | |
45 | mutex_unlock(&dev->struct_mutex); | |
46 | } | |
47 | ||
48 | drm_framebuffer_cleanup(drm_fb); | |
49 | kfree(fb); | |
50 | } | |
51 | ||
52 | static int | |
53 | nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb, | |
54 | struct drm_file *file_priv, | |
55 | unsigned int *handle) | |
56 | { | |
57 | struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb); | |
58 | ||
59 | return drm_gem_handle_create(file_priv, fb->nvbo->gem, handle); | |
60 | } | |
61 | ||
62 | static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = { | |
63 | .destroy = nouveau_user_framebuffer_destroy, | |
64 | .create_handle = nouveau_user_framebuffer_create_handle, | |
65 | }; | |
66 | ||
67 | struct drm_framebuffer * | |
68 | nouveau_framebuffer_create(struct drm_device *dev, struct nouveau_bo *nvbo, | |
69 | struct drm_mode_fb_cmd *mode_cmd) | |
70 | { | |
71 | struct nouveau_framebuffer *fb; | |
72 | int ret; | |
73 | ||
74 | fb = kzalloc(sizeof(struct nouveau_framebuffer), GFP_KERNEL); | |
75 | if (!fb) | |
76 | return NULL; | |
77 | ||
78 | ret = drm_framebuffer_init(dev, &fb->base, &nouveau_framebuffer_funcs); | |
79 | if (ret) { | |
80 | kfree(fb); | |
81 | return NULL; | |
82 | } | |
83 | ||
84 | drm_helper_mode_fill_fb_struct(&fb->base, mode_cmd); | |
85 | ||
86 | fb->nvbo = nvbo; | |
87 | return &fb->base; | |
88 | } | |
89 | ||
90 | static struct drm_framebuffer * | |
91 | nouveau_user_framebuffer_create(struct drm_device *dev, | |
92 | struct drm_file *file_priv, | |
93 | struct drm_mode_fb_cmd *mode_cmd) | |
94 | { | |
95 | struct drm_framebuffer *fb; | |
96 | struct drm_gem_object *gem; | |
97 | ||
98 | gem = drm_gem_object_lookup(dev, file_priv, mode_cmd->handle); | |
99 | if (!gem) | |
100 | return NULL; | |
101 | ||
102 | fb = nouveau_framebuffer_create(dev, nouveau_gem_object(gem), mode_cmd); | |
103 | if (!fb) { | |
104 | drm_gem_object_unreference(gem); | |
105 | return NULL; | |
106 | } | |
107 | ||
108 | return fb; | |
109 | } | |
110 | ||
111 | const struct drm_mode_config_funcs nouveau_mode_config_funcs = { | |
112 | .fb_create = nouveau_user_framebuffer_create, | |
113 | .fb_changed = nouveau_fbcon_probe, | |
114 | }; | |
115 |