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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 
     22 /*
     23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     28 
     29 #include <sys/asm_linkage.h>
     30 
     31 #define	NOP_4		nop;nop;nop;nop
     32 #define	NOP_16		NOP_4;NOP_4;NOP_4;NOP_4
     33 #define	NOP_64		NOP_16;NOP_16;NOP_16;NOP_16
     34 #define	NOP_256		NOP_64;NOP_64;NOP_64;NOP_64
     35 #define	NOP_1K		NOP_256;NOP_256;NOP_256;NOP_256
     36 #define	NOP_4K		NOP_1K;NOP_1K;NOP_1K;NOP_1K
     37 #define	NOP_16K		NOP_4K;NOP_4K;NOP_4K;NOP_4K
     38 
     39 /* flushes the icache using a series of nops */
     40 
     41 #ifdef __lint
     42 
     43 void
     44 iflush(void)
     45 {
     46 }
     47 
     48 #else
     49 
     50 ENTRY(iflush)
     51 	NOP_4K
     52 	NOP_4K
     53 	retl
     54 	nop
     55 SET_SIZE(iflush)
     56 
     57 #endif
     58