Module Name: src
Committed By: matt
Date: Wed Oct 17 20:20:54 UTC 2012
Modified Files:
src/sys/arch/evbarm/bcm53xx: bcm53xx_machdep.c
Log Message:
If there is more than 256MB of ram, add the first 256MB into a separate
VM freelist and specifiy that PMAP_ALLOC_POOLPAGE allocate using that freelist.
To generate a diff of this commit:
cvs rdiff -u -r1.4 -r1.5 src/sys/arch/evbarm/bcm53xx/bcm53xx_machdep.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/evbarm/bcm53xx/bcm53xx_machdep.c
diff -u src/sys/arch/evbarm/bcm53xx/bcm53xx_machdep.c:1.4 src/sys/arch/evbarm/bcm53xx/bcm53xx_machdep.c:1.5
--- src/sys/arch/evbarm/bcm53xx/bcm53xx_machdep.c:1.4 Sun Oct 7 19:17:24 2012
+++ src/sys/arch/evbarm/bcm53xx/bcm53xx_machdep.c Wed Oct 17 20:20:54 2012
@@ -1,4 +1,4 @@
-/* $NetBSD: bcm53xx_machdep.c,v 1.4 2012/10/07 19:17:24 matt Exp $ */
+/* $NetBSD: bcm53xx_machdep.c,v 1.5 2012/10/17 20:20:54 matt Exp $ */
/*-
* Copyright (c) 2012 The NetBSD Foundation, Inc.
@@ -33,7 +33,7 @@
#define IDM_PRIVATE
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: bcm53xx_machdep.c,v 1.4 2012/10/07 19:17:24 matt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: bcm53xx_machdep.c,v 1.5 2012/10/17 20:20:54 matt Exp $");
#include "opt_evbarm_boardtype.h"
#include "opt_broadcom.h"
@@ -172,6 +172,13 @@ static const struct pmap_devmap devmap[]
{ 0, 0, 0, 0, 0 }
};
+static const struct boot_physmem bp_first256 = {
+ .bp_start = 0x80000000 / NBPG,
+ .bp_pages = 0x10000000 / NBPG,
+ .bp_freelist = VM_FREELIST_ISADMA,
+ .bp_flags = 0,
+};
+
/*
* u_int initarm(...)
*
@@ -238,6 +245,7 @@ initarm(void *arg)
psize_t memsize = bcm53xx_memprobe();
//memsize = 512*1024*1024;
+ const bool bigmem_p = (memsize >> 20) > 256;
arm32_bootmem_init(KERN_VTOPHYS(KERNEL_BASE), memsize,
(paddr_t)KERNEL_BASE_phys);
@@ -259,8 +267,19 @@ initarm(void *arg)
cpu_reset_address = bcm53xx_system_reset;
/* we've a specific device_register routine */
evbarm_device_register = bcm53xx_device_register;
+ if (bigmem_p) {
+ /*
+ * If we have more than 256MB
+ */
+ arm_poolpage_vmfreelist = bp_first256.bp_freelist;
+ }
- return initarm_common(KERNEL_VM_BASE, KERNEL_VM_SIZE, NULL, 0);
+ /*
+ * If we have more than 256MB of RAM, set aside the first 256MB for
+ * non-default VM allocations.
+ */
+ return initarm_common(KERNEL_VM_BASE, KERNEL_VM_SIZE,
+ (bigmem_p ? &bp_first256 : NULL), (bigmem_p ? 1 : 0));
}
void
