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> |
b5e9c1a2 | 26 | #include <linux/dma-buf.h> |
22b33e8e | 27 | |
77145f1c BS |
28 | #include "nouveau_drm.h" |
29 | #include "nouveau_gem.h" | |
22b33e8e | 30 | |
ab9ccb96 | 31 | struct sg_table *nouveau_gem_prime_get_sg_table(struct drm_gem_object *obj) |
22b33e8e | 32 | { |
ab9ccb96 | 33 | struct nouveau_bo *nvbo = nouveau_gem_object(obj); |
22b33e8e | 34 | int npages = nvbo->bo.num_pages; |
22b33e8e | 35 | |
ab9ccb96 | 36 | return drm_prime_pages_to_sg(nvbo->bo.ttm->pages, npages); |
22b33e8e DA |
37 | } |
38 | ||
ab9ccb96 | 39 | void *nouveau_gem_prime_vmap(struct drm_gem_object *obj) |
22b33e8e | 40 | { |
ab9ccb96 | 41 | struct nouveau_bo *nvbo = nouveau_gem_object(obj); |
35916ace DA |
42 | int ret; |
43 | ||
35916ace DA |
44 | ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.num_pages, |
45 | &nvbo->dma_buf_vmap); | |
ab9ccb96 | 46 | if (ret) |
35916ace | 47 | return ERR_PTR(ret); |
ab9ccb96 | 48 | |
35916ace DA |
49 | return nvbo->dma_buf_vmap.virtual; |
50 | } | |
51 | ||
ab9ccb96 | 52 | void nouveau_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr) |
35916ace | 53 | { |
ab9ccb96 | 54 | struct nouveau_bo *nvbo = nouveau_gem_object(obj); |
35916ace | 55 | |
ab9ccb96 | 56 | ttm_bo_kunmap(&nvbo->dma_buf_vmap); |
35916ace DA |
57 | } |
58 | ||
ab9ccb96 | 59 | struct drm_gem_object *nouveau_gem_prime_import_sg_table(struct drm_device *dev, |
b5e9c1a2 | 60 | struct dma_buf_attachment *attach, |
ab9ccb96 | 61 | struct sg_table *sg) |
22b33e8e DA |
62 | { |
63 | struct nouveau_bo *nvbo; | |
bb6178b0 | 64 | struct reservation_object *robj = attach->dmabuf->resv; |
22b33e8e DA |
65 | u32 flags = 0; |
66 | int ret; | |
67 | ||
68 | flags = TTM_PL_FLAG_TT; | |
69 | ||
bb6178b0 | 70 | ww_mutex_lock(&robj->lock, NULL); |
b5e9c1a2 | 71 | ret = nouveau_bo_new(dev, attach->dmabuf->size, 0, flags, 0, 0, |
bb6178b0 ML |
72 | sg, robj, &nvbo); |
73 | ww_mutex_unlock(&robj->lock); | |
22b33e8e | 74 | if (ret) |
ab9ccb96 | 75 | return ERR_PTR(ret); |
22b33e8e | 76 | |
22b33e8e | 77 | nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_GART; |
55fb74ad DH |
78 | |
79 | /* Initialize the embedded gem-object. We return a single gem-reference | |
80 | * to the caller, instead of a normal nouveau_bo ttm reference. */ | |
81 | ret = drm_gem_object_init(dev, &nvbo->gem, nvbo->bo.mem.size); | |
82 | if (ret) { | |
ab9ccb96 AP |
83 | nouveau_bo_ref(NULL, &nvbo); |
84 | return ERR_PTR(-ENOMEM); | |
22b33e8e DA |
85 | } |
86 | ||
55fb74ad | 87 | return &nvbo->gem; |
22b33e8e DA |
88 | } |
89 | ||
ab9ccb96 | 90 | int nouveau_gem_prime_pin(struct drm_gem_object *obj) |
22b33e8e DA |
91 | { |
92 | struct nouveau_bo *nvbo = nouveau_gem_object(obj); | |
1af7c7dd | 93 | int ret; |
22b33e8e DA |
94 | |
95 | /* pin buffer into GTT */ | |
ad76b3f7 | 96 | ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_TT, false); |
22b33e8e | 97 | if (ret) |
ab9ccb96 | 98 | return -EINVAL; |
22b33e8e | 99 | |
ab9ccb96 | 100 | return 0; |
22b33e8e | 101 | } |
1af7c7dd ML |
102 | |
103 | void nouveau_gem_prime_unpin(struct drm_gem_object *obj) | |
104 | { | |
105 | struct nouveau_bo *nvbo = nouveau_gem_object(obj); | |
106 | ||
107 | nouveau_bo_unpin(nvbo); | |
108 | } | |
3aac4502 ML |
109 | |
110 | struct reservation_object *nouveau_gem_prime_res_obj(struct drm_gem_object *obj) | |
111 | { | |
112 | struct nouveau_bo *nvbo = nouveau_gem_object(obj); | |
113 | ||
114 | return nvbo->bo.resv; | |
115 | } |