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Jakob Bornecrantzfb1d9732009-12-10 00:19:58 +00001/**************************************************************************
2 *
Sinclair Yeh54fbde82015-07-29 12:38:02 -07003 * Copyright © 2009-2011 VMware, Inc., Palo Alto, CA., USA
Jakob Bornecrantzfb1d9732009-12-10 00:19:58 +00004 * 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
David Howells760285e2012-10-02 18:01:07 +010028#include <drm/drmP.h>
Jakob Bornecrantzfb1d9732009-12-10 00:19:58 +000029#include "vmwgfx_drv.h"
30
31int 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)) {
Thomas Hellstrom07999a72011-09-01 20:18:40 +000037 DRM_ERROR("Illegal attempt to mmap old fifo space.\n");
38 return -EINVAL;
Jakob Bornecrantzfb1d9732009-12-10 00:19:58 +000039 }
40
Joe Perches40b3be32010-09-04 18:52:42 -070041 file_priv = filp->private_data;
Jakob Bornecrantzfb1d9732009-12-10 00:19:58 +000042 dev_priv = vmw_priv(file_priv->minor->dev);
43 return ttm_bo_mmap(filp, vma, &dev_priv->bdev);
44}
45
Dave Airlieba4420c2010-03-09 10:56:52 +100046static int vmw_ttm_mem_global_init(struct drm_global_reference *ref)
Jakob Bornecrantzfb1d9732009-12-10 00:19:58 +000047{
48 DRM_INFO("global init.\n");
49 return ttm_mem_global_init(ref->object);
50}
51
Dave Airlieba4420c2010-03-09 10:56:52 +100052static void vmw_ttm_mem_global_release(struct drm_global_reference *ref)
Jakob Bornecrantzfb1d9732009-12-10 00:19:58 +000053{
54 ttm_mem_global_release(ref->object);
55}
56
57int vmw_ttm_global_init(struct vmw_private *dev_priv)
58{
Dave Airlieba4420c2010-03-09 10:56:52 +100059 struct drm_global_reference *global_ref;
Jakob Bornecrantzfb1d9732009-12-10 00:19:58 +000060 int ret;
61
62 global_ref = &dev_priv->mem_global_ref;
Dave Airlieba4420c2010-03-09 10:56:52 +100063 global_ref->global_type = DRM_GLOBAL_TTM_MEM;
Jakob Bornecrantzfb1d9732009-12-10 00:19:58 +000064 global_ref->size = sizeof(struct ttm_mem_global);
65 global_ref->init = &vmw_ttm_mem_global_init;
66 global_ref->release = &vmw_ttm_mem_global_release;
67
Dave Airlieba4420c2010-03-09 10:56:52 +100068 ret = drm_global_item_ref(global_ref);
Jakob Bornecrantzfb1d9732009-12-10 00:19:58 +000069 if (unlikely(ret != 0)) {
70 DRM_ERROR("Failed setting up TTM memory accounting.\n");
71 return ret;
72 }
73
74 dev_priv->bo_global_ref.mem_glob =
75 dev_priv->mem_global_ref.object;
76 global_ref = &dev_priv->bo_global_ref.ref;
Dave Airlieba4420c2010-03-09 10:56:52 +100077 global_ref->global_type = DRM_GLOBAL_TTM_BO;
Jakob Bornecrantzfb1d9732009-12-10 00:19:58 +000078 global_ref->size = sizeof(struct ttm_bo_global);
79 global_ref->init = &ttm_bo_global_init;
80 global_ref->release = &ttm_bo_global_release;
Dave Airlieba4420c2010-03-09 10:56:52 +100081 ret = drm_global_item_ref(global_ref);
Jakob Bornecrantzfb1d9732009-12-10 00:19:58 +000082
83 if (unlikely(ret != 0)) {
84 DRM_ERROR("Failed setting up TTM buffer objects.\n");
85 goto out_no_bo;
86 }
87
88 return 0;
89out_no_bo:
Dave Airlieba4420c2010-03-09 10:56:52 +100090 drm_global_item_unref(&dev_priv->mem_global_ref);
Jakob Bornecrantzfb1d9732009-12-10 00:19:58 +000091 return ret;
92}
93
94void vmw_ttm_global_release(struct vmw_private *dev_priv)
95{
Dave Airlieba4420c2010-03-09 10:56:52 +100096 drm_global_item_unref(&dev_priv->bo_global_ref.ref);
97 drm_global_item_unref(&dev_priv->mem_global_ref);
Jakob Bornecrantzfb1d9732009-12-10 00:19:58 +000098}