From e0a7412b69d0d38e94a7dc24079abc1806c8b04e Mon Sep 17 00:00:00 2001
From: jchandra <jchandra@FreeBSD.org>
Date: Tue, 1 Mar 2011 04:21:56 +0000
Subject: 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.
---
 sys/mips/include/pmap.h | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'sys/mips/include/pmap.h')

diff --git a/sys/mips/include/pmap.h b/sys/mips/include/pmap.h
index 10623a8..e710635 100644
--- a/sys/mips/include/pmap.h
+++ b/sys/mips/include/pmap.h
@@ -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
 
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