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view usr/src/lib/libc/sparcv9/gen/sync_instruction_memory.s @ 7298:b69e27387f74
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author | Mark J. Nelson <Mark.J.Nelson@Sun.COM> |
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date | Wed, 06 Aug 2008 16:29:39 -0600 |
parents | 68f95e015346 |
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/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (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) 1995-1997, by Sun Microsystems, Inc. * All rights reserved. */ .file "sync_instruction_memory.s" #include <sys/asm_linkage.h> /* * void sync_instruction_memory(caddr_t addr, int len) * * Make the memory at {addr, addr+len} valid for instruction execution. */ #ifdef lint #define nop void sync_instruction_memory(caddr_t addr, size_t len) { caddr_t end = addr + len; caddr_t start = addr & ~7; for (; start < end; start += 8) flush(start); nop; nop; nop; nop; nop; return; } #else ENTRY(sync_instruction_memory) add %o0, %o1, %o2 andn %o0, 7, %o0 cmp %o0, %o2 bgeu,pn %xcc, 2f nop flush %o0 1: add %o0, 8, %o0 cmp %o0, %o2 blu,a,pt %xcc, 1b flush %o0 2: retl clr %o0 SET_SIZE(sync_instruction_memory) ENTRY(nop) retl nop SET_SIZE(nop) #endif