- Change the vm_mmap() function to accept an objtype_t parameter specifying

  the type of object represented by the handle argument.
- Allow vm_mmap() to map device memory via cdev objects in addition to
  vnodes and anonymous memory.  Note that mmaping a cdev directly does not
  currently perform any MAC checks like mapping a vnode does.
- Unbreak the DRM getbufs ioctl by having it call vm_mmap() directly on the
  cdev the ioctl is acting on rather than trying to find a suitable vnode
  to map from.

Reviewed by:	alc, arch@

1 files changed, 4 insertions, 0 deletions

diff --git a/sys/vm/vm.h b/sys/vm/vm.h
index e61b726..102a934 100644
--- a/sys/vm/vm.h
+++ b/sys/vm/vm.h
@@ -80,6 +80,10 @@ typedef u_char vm_prot_t;	/* protection codes */
 #define VM_PROT_RW		(VM_PROT_READ|VM_PROT_WRITE)
 #define	VM_PROT_DEFAULT		VM_PROT_ALL
 
+enum obj_type { OBJT_DEFAULT, OBJT_SWAP, OBJT_VNODE, OBJT_DEVICE, OBJT_PHYS,
+		OBJT_DEAD };
+typedef u_char objtype_t;
+
 union vm_map_object;
 typedef union vm_map_object vm_map_object_t;