Commit | Line | Data |
---|---|---|
05b84911 RC |
1 | /* |
2 | * Copyright (C) 2013 Red Hat | |
3 | * Author: Rob Clark <robdclark@gmail.com> | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU General Public License version 2 as published by | |
7 | * the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along with | |
15 | * this program. If not, see <http://www.gnu.org/licenses/>. | |
16 | */ | |
17 | ||
18 | #include "msm_drv.h" | |
19 | #include "msm_gem.h" | |
20 | ||
b5e9c1a2 | 21 | #include <linux/dma-buf.h> |
05b84911 RC |
22 | |
23 | struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj) | |
24 | { | |
25 | struct msm_gem_object *msm_obj = to_msm_bo(obj); | |
ac451467 RC |
26 | int npages = obj->size >> PAGE_SHIFT; |
27 | ||
28 | if (WARN_ON(!msm_obj->pages)) /* should have already pinned! */ | |
29 | return NULL; | |
30 | ||
31 | return drm_prime_pages_to_sg(msm_obj->pages, npages); | |
05b84911 RC |
32 | } |
33 | ||
34 | void *msm_gem_prime_vmap(struct drm_gem_object *obj) | |
35 | { | |
18f23049 | 36 | return msm_gem_get_vaddr(obj); |
05b84911 RC |
37 | } |
38 | ||
39 | void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr) | |
40 | { | |
18f23049 | 41 | msm_gem_put_vaddr(obj); |
05b84911 RC |
42 | } |
43 | ||
77a147e7 DT |
44 | int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma) |
45 | { | |
46 | int ret; | |
47 | ||
77a147e7 | 48 | ret = drm_gem_mmap_obj(obj, obj->size, vma); |
77a147e7 DT |
49 | if (ret < 0) |
50 | return ret; | |
51 | ||
52 | return msm_gem_mmap_obj(vma->vm_private_data, vma); | |
53 | } | |
54 | ||
05b84911 | 55 | struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev, |
b5e9c1a2 | 56 | struct dma_buf_attachment *attach, struct sg_table *sg) |
05b84911 | 57 | { |
79f0e202 | 58 | return msm_gem_import(dev, attach->dmabuf, sg); |
05b84911 RC |
59 | } |
60 | ||
61 | int msm_gem_prime_pin(struct drm_gem_object *obj) | |
62 | { | |
63 | if (!obj->import_attach) | |
64 | msm_gem_get_pages(obj); | |
65 | return 0; | |
66 | } | |
67 | ||
68 | void msm_gem_prime_unpin(struct drm_gem_object *obj) | |
69 | { | |
70 | if (!obj->import_attach) | |
71 | msm_gem_put_pages(obj); | |
72 | } |