/* * 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)
