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fb1d9738 JB |
1 | /************************************************************************** |
2 | * | |
3 | * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA | |
4 | * All Rights Reserved. | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a | |
7 | * copy of this software and associated documentation files (the | |
8 | * "Software"), to deal in the Software without restriction, including | |
9 | * without limitation the rights to use, copy, modify, merge, publish, | |
10 | * distribute, sub license, and/or sell copies of the Software, and to | |
11 | * permit persons to whom the Software is furnished to do so, subject to | |
12 | * the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice (including the | |
15 | * next paragraph) shall be included in all copies or substantial portions | |
16 | * of the Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL | |
21 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, | |
22 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR | |
23 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE | |
24 | * USE OR OTHER DEALINGS IN THE SOFTWARE. | |
25 | * | |
26 | **************************************************************************/ | |
27 | ||
28 | #include "drmP.h" | |
29 | #include "vmwgfx_drv.h" | |
30 | ||
31 | int vmw_mmap(struct file *filp, struct vm_area_struct *vma) | |
32 | { | |
33 | struct drm_file *file_priv; | |
34 | struct vmw_private *dev_priv; | |
35 | ||
36 | if (unlikely(vma->vm_pgoff < VMWGFX_FILE_PAGE_OFFSET)) { | |
37 | if (vmw_fifo_mmap(filp, vma) == 0) | |
38 | return 0; | |
39 | return drm_mmap(filp, vma); | |
40 | } | |
41 | ||
42 | file_priv = (struct drm_file *)filp->private_data; | |
43 | dev_priv = vmw_priv(file_priv->minor->dev); | |
44 | return ttm_bo_mmap(filp, vma, &dev_priv->bdev); | |
45 | } | |
46 | ||
47 | static int vmw_ttm_mem_global_init(struct ttm_global_reference *ref) | |
48 | { | |
49 | DRM_INFO("global init.\n"); | |
50 | return ttm_mem_global_init(ref->object); | |
51 | } | |
52 | ||
53 | static void vmw_ttm_mem_global_release(struct ttm_global_reference *ref) | |
54 | { | |
55 | ttm_mem_global_release(ref->object); | |
56 | } | |
57 | ||
58 | int vmw_ttm_global_init(struct vmw_private *dev_priv) | |
59 | { | |
60 | struct ttm_global_reference *global_ref; | |
61 | int ret; | |
62 | ||
63 | global_ref = &dev_priv->mem_global_ref; | |
64 | global_ref->global_type = TTM_GLOBAL_TTM_MEM; | |
65 | global_ref->size = sizeof(struct ttm_mem_global); | |
66 | global_ref->init = &vmw_ttm_mem_global_init; | |
67 | global_ref->release = &vmw_ttm_mem_global_release; | |
68 | ||
69 | ret = ttm_global_item_ref(global_ref); | |
70 | if (unlikely(ret != 0)) { | |
71 | DRM_ERROR("Failed setting up TTM memory accounting.\n"); | |
72 | return ret; | |
73 | } | |
74 | ||
75 | dev_priv->bo_global_ref.mem_glob = | |
76 | dev_priv->mem_global_ref.object; | |
77 | global_ref = &dev_priv->bo_global_ref.ref; | |
78 | global_ref->global_type = TTM_GLOBAL_TTM_BO; | |
79 | global_ref->size = sizeof(struct ttm_bo_global); | |
80 | global_ref->init = &ttm_bo_global_init; | |
81 | global_ref->release = &ttm_bo_global_release; | |
82 | ret = ttm_global_item_ref(global_ref); | |
83 | ||
84 | if (unlikely(ret != 0)) { | |
85 | DRM_ERROR("Failed setting up TTM buffer objects.\n"); | |
86 | goto out_no_bo; | |
87 | } | |
88 | ||
89 | return 0; | |
90 | out_no_bo: | |
91 | ttm_global_item_unref(&dev_priv->mem_global_ref); | |
92 | return ret; | |
93 | } | |
94 | ||
95 | void vmw_ttm_global_release(struct vmw_private *dev_priv) | |
96 | { | |
97 | ttm_global_item_unref(&dev_priv->bo_global_ref.ref); | |
98 | ttm_global_item_unref(&dev_priv->mem_global_ref); | |
99 | } |