projects / deliverable / linux.git / blame
| 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 | { | |
| 36 | return msm_gem_vaddr(obj); | |
| 37 | } | |
| 38 | ||
| 39 | void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr) | |
| 40 | { | |
| 41 | /* TODO msm_gem_vunmap() */ | |
| 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 | ||
| 48 | mutex_lock(&obj->dev->struct_mutex); | |
| 49 | ret = drm_gem_mmap_obj(obj, obj->size, vma); | |
| 50 | mutex_unlock(&obj->dev->struct_mutex); | |
| 51 | if (ret < 0) | |
| 52 | return ret; | |
| 53 | ||
| 54 | return msm_gem_mmap_obj(vma->vm_private_data, vma); | |
| 55 | } | |
| 56 | ||
| 05b84911 | 57 | struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev, |
| b5e9c1a2 | 58 | struct dma_buf_attachment *attach, struct sg_table *sg) |
| 05b84911 | 59 | { |
| b5e9c1a2 | 60 | return msm_gem_import(dev, attach->dmabuf->size, sg); |
| 05b84911 RC |
61 | } |
| 62 | ||
| 63 | int msm_gem_prime_pin(struct drm_gem_object *obj) | |
| 64 | { | |
| 65 | if (!obj->import_attach) | |
| 66 | msm_gem_get_pages(obj); | |
| 67 | return 0; | |
| 68 | } | |
| 69 | ||
| 70 | void msm_gem_prime_unpin(struct drm_gem_object *obj) | |
| 71 | { | |
| 72 | if (!obj->import_attach) | |
| 73 | msm_gem_put_pages(obj); | |
| 74 | } |