1 // SPDX-License-Identifier: GPL-2.0 OR MIT
2 /**************************************************************************
3  *
4  * Copyright 2009-2011 VMware, Inc., Palo Alto, CA., USA
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
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24  * USE OR OTHER DEALINGS IN THE SOFTWARE.
25  *
26  **************************************************************************/
27 
28 #include <drm/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 		DRM_ERROR("Illegal attempt to mmap old fifo space.\n");
38 		return -EINVAL;
39 	}
40 
41 	file_priv = filp->private_data;
42 	dev_priv = vmw_priv(file_priv->minor->dev);
43 	return ttm_bo_mmap(filp, vma, &dev_priv->bdev);
44 }
45