Rob Clark | 05b8491 | 2013-09-28 11:28:35 -0400 | [diff] [blame] | 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 | |
Maarten Lankhorst | b5e9c1a | 2014-01-09 11:03:14 +0100 | [diff] [blame] | 21 | #include <linux/dma-buf.h> |
Rob Clark | 05b8491 | 2013-09-28 11:28:35 -0400 | [diff] [blame] | 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); |
Rob Clark | ac45146 | 2015-07-23 13:44:56 -0400 | [diff] [blame] | 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); |
Rob Clark | 05b8491 | 2013-09-28 11:28:35 -0400 | [diff] [blame] | 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 | |
Daniel Thompson | 77a147e | 2014-11-12 11:38:14 +0000 | [diff] [blame] | 44 | int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma) |
| 45 | { |
| 46 | int ret; |
| 47 | |
Daniel Thompson | 77a147e | 2014-11-12 11:38:14 +0000 | [diff] [blame] | 48 | ret = drm_gem_mmap_obj(obj, obj->size, vma); |
Daniel Thompson | 77a147e | 2014-11-12 11:38:14 +0000 | [diff] [blame] | 49 | if (ret < 0) |
| 50 | return ret; |
| 51 | |
| 52 | return msm_gem_mmap_obj(vma->vm_private_data, vma); |
| 53 | } |
| 54 | |
Rob Clark | 05b8491 | 2013-09-28 11:28:35 -0400 | [diff] [blame] | 55 | struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev, |
Maarten Lankhorst | b5e9c1a | 2014-01-09 11:03:14 +0100 | [diff] [blame] | 56 | struct dma_buf_attachment *attach, struct sg_table *sg) |
Rob Clark | 05b8491 | 2013-09-28 11:28:35 -0400 | [diff] [blame] | 57 | { |
Maarten Lankhorst | b5e9c1a | 2014-01-09 11:03:14 +0100 | [diff] [blame] | 58 | return msm_gem_import(dev, attach->dmabuf->size, sg); |
Rob Clark | 05b8491 | 2013-09-28 11:28:35 -0400 | [diff] [blame] | 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 | } |