diff options
Diffstat (limited to 'kernel/drivers/gpu/drm/msm/msm_gem_prime.c')
-rw-r--r-- | kernel/drivers/gpu/drm/msm/msm_gem_prime.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/msm/msm_gem_prime.c b/kernel/drivers/gpu/drm/msm/msm_gem_prime.c new file mode 100644 index 000000000..dd7a7ab60 --- /dev/null +++ b/kernel/drivers/gpu/drm/msm/msm_gem_prime.c @@ -0,0 +1,70 @@ +/* + * Copyright (C) 2013 Red Hat + * Author: Rob Clark <robdclark@gmail.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include "msm_drv.h" +#include "msm_gem.h" + +#include <linux/dma-buf.h> + +struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj) +{ + struct msm_gem_object *msm_obj = to_msm_bo(obj); + BUG_ON(!msm_obj->sgt); /* should have already pinned! */ + return msm_obj->sgt; +} + +void *msm_gem_prime_vmap(struct drm_gem_object *obj) +{ + return msm_gem_vaddr(obj); +} + +void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr) +{ + /* TODO msm_gem_vunmap() */ +} + +int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma) +{ + int ret; + + mutex_lock(&obj->dev->struct_mutex); + ret = drm_gem_mmap_obj(obj, obj->size, vma); + mutex_unlock(&obj->dev->struct_mutex); + if (ret < 0) + return ret; + + return msm_gem_mmap_obj(vma->vm_private_data, vma); +} + +struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev, + struct dma_buf_attachment *attach, struct sg_table *sg) +{ + return msm_gem_import(dev, attach->dmabuf->size, sg); +} + +int msm_gem_prime_pin(struct drm_gem_object *obj) +{ + if (!obj->import_attach) + msm_gem_get_pages(obj); + return 0; +} + +void msm_gem_prime_unpin(struct drm_gem_object *obj) +{ + if (!obj->import_attach) + msm_gem_put_pages(obj); +} |