Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

If there is more than 256MB of ram, add the first 256MB into a separate

Browse Source 
VM freelist and specifiy that PMAP_ALLOC_POOLPAGE allocate using that freelist.
This commit is contained in:
matt 2012-10-17 20:20:54 +00:00
parent 035939be53
commit a79730286b
1 changed files with 22 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
sys/arch/evbarm/bcm53xx/bcm53xx_machdep.c
View File

@ -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