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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2007 by Sun Microsystems, Inc.
*/
/*
* General machine architecture & implementation specific
* assembly language routines.
*/
#include "assym.h"
#include <sys/asm_linkage.h>
#include <sys/eeprom.h>
#include <sys/param.h>
#include <sys/async.h>
#include <sys/intreg.h>
#include <sys/machthread.h>
#include <sys/iocache.h>
#include <sys/privregs.h>
#include <sys/archsystm.h>
!
! void memscrub_read(caddr_t src, u_int blks)
!
.seg ".text"
.align 4
ENTRY(memscrub_read)
srl %o1, 0, %o1 ! clear upper word of blk count
rd %fprs, %o2 ! get the status of fp
wr %g0, FPRS_FEF, %fprs ! enable fp
1:
prefetch [%o0 + 8*64], 0
ldda [%o0]ASI_BLK_P, %d0
add %o0, 64, %o0
prefetch [%o0 + 8*64], 0
ldda [%o0]ASI_BLK_P, %d16
add %o0, 64, %o0
prefetch [%o0 + 8*64], 0
ldda [%o0]ASI_BLK_P, %d32
add %o0, 64, %o0
prefetch [%o0 + 8*64], 0
ldda [%o0]ASI_BLK_P, %d48
dec %o1
brnz,a %o1, 1b
add %o0, 64, %o0
retl
wr %o2, 0, %fprs ! restore fprs (disabled)
SET_SIZE(memscrub_read)
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