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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/gpu/drm/vgem
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/gpu/drm/vgem')
-rw-r--r--kernel/drivers/gpu/drm/vgem/vgem_drv.c57
1 files changed, 2 insertions, 55 deletions
diff --git a/kernel/drivers/gpu/drm/vgem/vgem_drv.c b/kernel/drivers/gpu/drm/vgem/vgem_drv.c
index 6394547cf..c503a840f 100644
--- a/kernel/drivers/gpu/drm/vgem/vgem_drv.c
+++ b/kernel/drivers/gpu/drm/vgem/vgem_drv.c
@@ -125,7 +125,7 @@ static int vgem_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
}
}
-static struct vm_operations_struct vgem_gem_vm_ops = {
+static const struct vm_operations_struct vgem_gem_vm_ops = {
.fault = vgem_gem_fault,
.open = drm_gem_vm_open,
.close = drm_gem_vm_close,
@@ -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,