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
vmw_mmap(struct file * filp,struct vm_area_struct * vma)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 = filp->private_data;
43 dev_priv = vmw_priv(file_priv->minor->dev);
44 return ttm_bo_mmap(filp, vma, &dev_priv->bdev);
45 }
46
vmw_ttm_mem_global_init(struct drm_global_reference * ref)47 static int vmw_ttm_mem_global_init(struct drm_global_reference *ref)
48 {
49 DRM_INFO("global init.\n");
50 return ttm_mem_global_init(ref->object);
51 }
52
vmw_ttm_mem_global_release(struct drm_global_reference * ref)53 static void vmw_ttm_mem_global_release(struct drm_global_reference *ref)
54 {
55 ttm_mem_global_release(ref->object);
56 }
57
vmw_ttm_global_init(struct vmw_private * dev_priv)58 int vmw_ttm_global_init(struct vmw_private *dev_priv)
59 {
60 struct drm_global_reference *global_ref;
61 int ret;
62
63 global_ref = &dev_priv->mem_global_ref;
64 global_ref->global_type = DRM_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 = drm_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 = DRM_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 = drm_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 drm_global_item_unref(&dev_priv->mem_global_ref);
92 return ret;
93 }
94
vmw_ttm_global_release(struct vmw_private * dev_priv)95 void vmw_ttm_global_release(struct vmw_private *dev_priv)
96 {
97 drm_global_item_unref(&dev_priv->bo_global_ref.ref);
98 drm_global_item_unref(&dev_priv->mem_global_ref);
99 }
100