- 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, 1 insertions, 5 deletions

diff --git a/sys/dev/drm/drm_bufs.h b/sys/dev/drm/drm_bufs.h
index 6f7f205..cb57852 100644
--- a/sys/dev/drm/drm_bufs.h
+++ b/sys/dev/drm/drm_bufs.h
@@ -923,12 +923,8 @@ int DRM(mapbufs)( DRM_IOCTL_ARGS )
 
 #ifdef __FreeBSD__
 	vaddr = round_page((vm_offset_t)vms->vm_daddr + MAXDSIZ);
-#ifdef this_is_just_plain_bogus
 	retcode = vm_mmap(&vms->vm_map, &vaddr, size, PROT_READ | PROT_WRITE,
-	    VM_PROT_ALL, MAP_SHARED, SLIST_FIRST(&kdev->si_hlist), foff );
-#else
-	retcode = EOPNOTSUPP;
-#endif
+	    VM_PROT_ALL, MAP_SHARED, OBJT_DEVICE, kdev, foff );
 #elif defined(__NetBSD__)
 	vaddr = round_page((vaddr_t)vms->vm_daddr + MAXDSIZ);
 	retcode = uvm_mmap(&vms->vm_map, &vaddr, size,