dcache_clear.h

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/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 2001  Hiroyuki Kondo, Hirokazu Takata, and Hitoshi Yamamoto
 * Copyright (C) 2004, 2006  Hirokazu Takata <takata at linux-m32r.org>
 */
#ifndef _ASM_M32R_DCACHE_CLEAR_H
#define _ASM_M32R_DCACHE_CLEAR_H

#ifdef CONFIG_CHIP_M32700_TS1
#define DCACHE_CLEAR(reg0, reg1, addr)              \
    "seth   "reg1", #high(dcache_dummy);        \n\t"   \
    "or3    "reg1", "reg1", #low(dcache_dummy); \n\t"   \
    "lock   "reg0", @"reg1";            \n\t"   \
    "add3   "reg0", "addr", #0x1000;        \n\t"   \
    "ld "reg0", @"reg0";            \n\t"   \
    "add3   "reg0", "addr", #0x2000;        \n\t"   \
    "ld "reg0", @"reg0";            \n\t"   \
    "unlock "reg0", @"reg1";            \n\t"
    /* FIXME: This workaround code cannot handle kernel modules
     * correctly under SMP environment.
     */
#else   /* CONFIG_CHIP_M32700_TS1 */
#define DCACHE_CLEAR(reg0, reg1, addr)
#endif  /* CONFIG_CHIP_M32700_TS1 */

#endif /* _ASM_M32R_DCACHE_CLEAR_H */