3 files changed, 16 insertions, 1 deletions

diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
index 5340c5f3987b..53673907a6a0 100644
--- a/drivers/gpu/drm/udl/udl_drv.c
+++ b/drivers/gpu/drm/udl/udl_drv.c
@@ -47,7 +47,7 @@ static struct vm_operations_struct udl_gem_vm_ops = {
 static const struct file_operations udl_driver_fops = {
         .owner = THIS_MODULE,
         .open = drm_open,
-        .mmap = drm_gem_mmap,
+        .mmap = udl_drm_gem_mmap,
         .poll = drm_poll,
         .read = drm_read,
         .unlocked_ioctl = drm_ioctl,
diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h
index 1612954a5bc4..96820d03a303 100644
--- a/drivers/gpu/drm/udl/udl_drv.h
+++ b/drivers/gpu/drm/udl/udl_drv.h
@@ -121,6 +121,7 @@ struct udl_gem_object *udl_gem_alloc_object(struct drm_device *dev,
 
 int udl_gem_vmap(struct udl_gem_object *obj);
 void udl_gem_vunmap(struct udl_gem_object *obj);
+int udl_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
 int udl_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
 
 int udl_handle_damage(struct udl_framebuffer *fb, int x, int y,
diff --git a/drivers/gpu/drm/udl/udl_gem.c b/drivers/gpu/drm/udl/udl_gem.c
index 852642dc1187..92f19ef329b0 100644
--- a/drivers/gpu/drm/udl/udl_gem.c
+++ b/drivers/gpu/drm/udl/udl_gem.c
@@ -71,6 +71,20 @@ int udl_dumb_destroy(struct drm_file *file, struct drm_device *dev,
         return drm_gem_handle_delete(file, handle);
 }
 
+int udl_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+        int ret;
+
+        ret = drm_gem_mmap(filp, vma);
+        if (ret)
+                return ret;
+
+        vma->vm_flags &= ~VM_PFNMAP;
+        vma->vm_flags |= VM_MIXEDMAP;
+
+        return ret;
+}
+
 int udl_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 {
         struct udl_gem_object *obj = to_udl_bo(vma->vm_private_data);