svn commit: r290158 - head/sys/dev/ntb/ntb_hw

[Conrad E. Meyer]

Author: cem
Date: Thu Oct 29 19:35:01 2015
New Revision: 290158
URL: https://svnweb.freebsd.org/changeset/base/290158

Log:
  ntb: Revert r290130 now that r290156 has landed
  
  Nagged by:	vangyzen
  Sponsored by:	EMC / Isilon Storage Division

Modified:
  head/sys/dev/ntb/ntb_hw/ntb_hw.c

Modified: head/sys/dev/ntb/ntb_hw/ntb_hw.c
==============================================================================
--- head/sys/dev/ntb/ntb_hw/ntb_hw.c	Thu Oct 29 19:28:21 2015	(r290157)
+++ head/sys/dev/ntb/ntb_hw/ntb_hw.c	Thu Oct 29 19:35:01 2015	(r290158)
@@ -755,13 +755,9 @@ map_memory_window_bar(struct ntb_softc *
 		save_bar_parameters(bar);
 	}
 
-#if 0	/* XXX: amd64 pmap_change_attr() assumes region lies in DMAP. */
 	/* Mark bar region as write combining to improve performance. */
 	rc = pmap_change_attr((vm_offset_t)bar->vbase, bar->size,
 	    VM_MEMATTR_WRITE_COMBINING);
-#else
-	rc = EINVAL;
-#endif
 	print_map_success(ntb, bar, "mw");
 	if (rc == 0)
 		device_printf(ntb->device,