tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
21#include <linux/dma-buf.h>
22
23struct 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);
26 BUG_ON(!msm_obj->sgt); /* should have already pinned! */
27 return msm_obj->sgt;
28}
29
30void *msm_gem_prime_vmap(struct drm_gem_object *obj)
31{
32 return msm_gem_vaddr(obj);
33}
34
35void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
36{
37 /* TODO msm_gem_vunmap() */
38}
39
40struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
41 struct dma_buf_attachment *attach, struct sg_table *sg)
42{
43 return msm_gem_import(dev, attach->dmabuf->size, sg);
44}
45
46int msm_gem_prime_pin(struct drm_gem_object *obj)
47{
48 if (!obj->import_attach)
49 msm_gem_get_pages(obj);
50 return 0;
51}
52
53void msm_gem_prime_unpin(struct drm_gem_object *obj)
54{
55 if (!obj->import_attach)
56 msm_gem_put_pages(obj);
57}