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dff96888 | 1 | // SPDX-License-Identifier: GPL-2.0 OR MIT |
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2 | /************************************************************************** |
3 | * | |
dff96888 | 4 | * Copyright 2009-2011 VMware, Inc., Palo Alto, CA., USA |
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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 | ||
760285e7 | 28 | #include <drm/drmP.h> |
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29 | #include "vmwgfx_drv.h" |
30 | ||
31 | int vmw_mmap(struct file *filp, struct vm_area_struct *vma) | |
32 | { | |
bed2dd84 TZ |
33 | struct drm_file *file_priv = filp->private_data; |
34 | struct vmw_private *dev_priv = vmw_priv(file_priv->minor->dev); | |
fb1d9738 | 35 | |
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36 | return ttm_bo_mmap(filp, vma, &dev_priv->bdev); |
37 | } | |
38 | ||
fd567467 TH |
39 | /* struct vmw_validation_mem callback */ |
40 | static int vmw_vmt_reserve(struct vmw_validation_mem *m, size_t size) | |
41 | { | |
42 | static struct ttm_operation_ctx ctx = {.interruptible = false, | |
43 | .no_wait_gpu = false}; | |
44 | struct vmw_private *dev_priv = container_of(m, struct vmw_private, vvm); | |
45 | ||
46 | return ttm_mem_global_alloc(vmw_mem_glob(dev_priv), size, &ctx); | |
47 | } | |
48 | ||
49 | /* struct vmw_validation_mem callback */ | |
50 | static void vmw_vmt_unreserve(struct vmw_validation_mem *m, size_t size) | |
51 | { | |
52 | struct vmw_private *dev_priv = container_of(m, struct vmw_private, vvm); | |
53 | ||
54 | return ttm_mem_global_free(vmw_mem_glob(dev_priv), size); | |
55 | } | |
56 | ||
57 | /** | |
58 | * vmw_validation_mem_init_ttm - Interface the validation memory tracker | |
59 | * to ttm. | |
60 | * @dev_priv: Pointer to struct vmw_private. The reason we choose a vmw private | |
61 | * rather than a struct vmw_validation_mem is to make sure assumption in the | |
62 | * callbacks that struct vmw_private derives from struct vmw_validation_mem | |
63 | * holds true. | |
64 | * @gran: The recommended allocation granularity | |
65 | */ | |
66 | void vmw_validation_mem_init_ttm(struct vmw_private *dev_priv, size_t gran) | |
67 | { | |
68 | struct vmw_validation_mem *vvm = &dev_priv->vvm; | |
69 | ||
70 | vvm->reserve_mem = vmw_vmt_reserve; | |
71 | vvm->unreserve_mem = vmw_vmt_unreserve; | |
72 | vvm->gran = gran; | |
73 | } |