diff options
Diffstat (limited to 'drivers/gpu')
-rw-r--r-- | drivers/gpu/drm/vgem/vgem_drv.c | 55 |
1 files changed, 1 insertions, 54 deletions
diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c index 860062ef8814..c503a840fd88 100644 --- a/drivers/gpu/drm/vgem/vgem_drv.c +++ b/drivers/gpu/drm/vgem/vgem_drv.c @@ -235,66 +235,13 @@ unlock: return ret; } -int vgem_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma) -{ - struct drm_file *priv = filp->private_data; - struct drm_device *dev = priv->minor->dev; - struct drm_vma_offset_node *node; - struct drm_gem_object *obj; - struct drm_vgem_gem_object *vgem_obj; - int ret = 0; - - mutex_lock(&dev->struct_mutex); - - node = drm_vma_offset_exact_lookup(dev->vma_offset_manager, - vma->vm_pgoff, - vma_pages(vma)); - if (!node) { - ret = -EINVAL; - goto out_unlock; - } else if (!drm_vma_node_is_allowed(node, filp)) { - ret = -EACCES; - goto out_unlock; - } - - obj = container_of(node, struct drm_gem_object, vma_node); - - vgem_obj = to_vgem_bo(obj); - - if (obj->dma_buf && vgem_obj->use_dma_buf) { - ret = dma_buf_mmap(obj->dma_buf, vma, 0); - goto out_unlock; - } - - if (!obj->dev->driver->gem_vm_ops) { - ret = -EINVAL; - goto out_unlock; - } - - vma->vm_flags |= VM_IO | VM_MIXEDMAP | VM_DONTEXPAND | VM_DONTDUMP; - vma->vm_ops = obj->dev->driver->gem_vm_ops; - vma->vm_private_data = vgem_obj; - vma->vm_page_prot = - pgprot_writecombine(vm_get_page_prot(vma->vm_flags)); - - mutex_unlock(&dev->struct_mutex); - drm_gem_vm_open(vma); - return ret; - -out_unlock: - mutex_unlock(&dev->struct_mutex); - - return ret; -} - - static struct drm_ioctl_desc vgem_ioctls[] = { }; static const struct file_operations vgem_driver_fops = { .owner = THIS_MODULE, .open = drm_open, - .mmap = vgem_drm_gem_mmap, + .mmap = drm_gem_mmap, .poll = drm_poll, .read = drm_read, .unlocked_ioctl = drm_ioctl, |