2 * Copyright (C) 2013 Red Hat
3 * Author: Rob Clark <robdclark@gmail.com>
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.
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
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/>.
21 #include <linux/dma-buf.h>
23 struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj)
25 struct msm_gem_object *msm_obj = to_msm_bo(obj);
26 int npages = obj->size >> PAGE_SHIFT;
28 if (WARN_ON(!msm_obj->pages)) /* should have already pinned! */
31 return drm_prime_pages_to_sg(msm_obj->pages, npages);
34 void *msm_gem_prime_vmap(struct drm_gem_object *obj)
36 return msm_gem_vaddr(obj);
39 void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
41 /* TODO msm_gem_vunmap() */
44 int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
48 ret = drm_gem_mmap_obj(obj, obj->size, vma);
52 return msm_gem_mmap_obj(vma->vm_private_data, vma);
55 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
56 struct dma_buf_attachment *attach, struct sg_table *sg)
58 return msm_gem_import(dev, attach->dmabuf, sg);
61 int msm_gem_prime_pin(struct drm_gem_object *obj)
63 if (!obj->import_attach)
64 msm_gem_get_pages(obj);
68 void msm_gem_prime_unpin(struct drm_gem_object *obj)
70 if (!obj->import_attach)
71 msm_gem_put_pages(obj);