svn commit: r219122 - head/sys/mips/include

[Jayachandran C.]

Author: jchandra
Date: Tue Mar  1 04:21:56 2011
New Revision: 219122
URL: http://svn.freebsd.org/changeset/base/219122

Log:
  Increase NKPT in case of n32 and n64 to support more physical memory.
  
  On n32, vm_page_startup() needs more virtual mem to map vm_page structs.
  The new value of 256 will allow us to support 16GB RAM.

Modified:
  head/sys/mips/include/pmap.h

Modified: head/sys/mips/include/pmap.h
==============================================================================
--- head/sys/mips/include/pmap.h	Tue Mar  1 03:25:18 2011	(r219121)
+++ head/sys/mips/include/pmap.h	Tue Mar  1 04:21:56 2011	(r219122)
@@ -49,7 +49,11 @@
 #include <machine/vmparam.h>
 #include <machine/pte.h>
 
+#if defined(__mips_n32) || defined(__mips_n64) /* PHYSADDR_64BIT */
+#define	NKPT		256	/* mem > 4G, vm_page_startup needs more KPTs */
+#else
 #define	NKPT		120	/* actual number of kernel page tables */
+#endif
 
 #ifndef LOCORE