Commit | Line | Data |
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e9bf5f36 DA |
1 | /* |
2 | * Copyright 2011 Red Hat Inc. | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
20 | * OTHER DEALINGS IN THE SOFTWARE. | |
21 | * | |
22 | * Authors: Dave Airlie | |
23 | */ | |
22b33e8e | 24 | |
612a9aab | 25 | #include <drm/drmP.h> |
22b33e8e | 26 | |
77145f1c BS |
27 | #include "nouveau_drm.h" |
28 | #include "nouveau_gem.h" | |
22b33e8e | 29 | |
ab9ccb96 | 30 | struct sg_table *nouveau_gem_prime_get_sg_table(struct drm_gem_object *obj) |
22b33e8e | 31 | { |
ab9ccb96 | 32 | struct nouveau_bo *nvbo = nouveau_gem_object(obj); |
22b33e8e | 33 | int npages = nvbo->bo.num_pages; |
22b33e8e | 34 | |
ab9ccb96 | 35 | return drm_prime_pages_to_sg(nvbo->bo.ttm->pages, npages); |
22b33e8e DA |
36 | } |
37 | ||
ab9ccb96 | 38 | void *nouveau_gem_prime_vmap(struct drm_gem_object *obj) |
22b33e8e | 39 | { |
ab9ccb96 | 40 | struct nouveau_bo *nvbo = nouveau_gem_object(obj); |
35916ace DA |
41 | int ret; |
42 | ||
35916ace DA |
43 | ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.num_pages, |
44 | &nvbo->dma_buf_vmap); | |
ab9ccb96 | 45 | if (ret) |
35916ace | 46 | return ERR_PTR(ret); |
ab9ccb96 | 47 | |
35916ace DA |
48 | return nvbo->dma_buf_vmap.virtual; |
49 | } | |
50 | ||
ab9ccb96 | 51 | void nouveau_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr) |
35916ace | 52 | { |
ab9ccb96 | 53 | struct nouveau_bo *nvbo = nouveau_gem_object(obj); |
35916ace | 54 | |
ab9ccb96 | 55 | ttm_bo_kunmap(&nvbo->dma_buf_vmap); |
35916ace DA |
56 | } |
57 | ||
ab9ccb96 AP |
58 | struct drm_gem_object *nouveau_gem_prime_import_sg_table(struct drm_device *dev, |
59 | size_t size, | |
60 | struct sg_table *sg) | |
22b33e8e DA |
61 | { |
62 | struct nouveau_bo *nvbo; | |
63 | u32 flags = 0; | |
64 | int ret; | |
65 | ||
66 | flags = TTM_PL_FLAG_TT; | |
67 | ||
68 | ret = nouveau_bo_new(dev, size, 0, flags, 0, 0, | |
ab9ccb96 | 69 | sg, &nvbo); |
22b33e8e | 70 | if (ret) |
ab9ccb96 | 71 | return ERR_PTR(ret); |
22b33e8e | 72 | |
22b33e8e | 73 | nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_GART; |
55fb74ad DH |
74 | |
75 | /* Initialize the embedded gem-object. We return a single gem-reference | |
76 | * to the caller, instead of a normal nouveau_bo ttm reference. */ | |
77 | ret = drm_gem_object_init(dev, &nvbo->gem, nvbo->bo.mem.size); | |
78 | if (ret) { | |
ab9ccb96 AP |
79 | nouveau_bo_ref(NULL, &nvbo); |
80 | return ERR_PTR(-ENOMEM); | |
22b33e8e DA |
81 | } |
82 | ||
55fb74ad | 83 | return &nvbo->gem; |
22b33e8e DA |
84 | } |
85 | ||
ab9ccb96 | 86 | int nouveau_gem_prime_pin(struct drm_gem_object *obj) |
22b33e8e DA |
87 | { |
88 | struct nouveau_bo *nvbo = nouveau_gem_object(obj); | |
1af7c7dd | 89 | int ret; |
22b33e8e DA |
90 | |
91 | /* pin buffer into GTT */ | |
92 | ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_TT); | |
93 | if (ret) | |
ab9ccb96 | 94 | return -EINVAL; |
22b33e8e | 95 | |
ab9ccb96 | 96 | return 0; |
22b33e8e | 97 | } |
1af7c7dd ML |
98 | |
99 | void nouveau_gem_prime_unpin(struct drm_gem_object *obj) | |
100 | { | |
101 | struct nouveau_bo *nvbo = nouveau_gem_object(obj); | |
102 | ||
103 | nouveau_bo_unpin(nvbo); | |
104 | } |