/* $NetBSD: cpufunc_asm_armv4.S,v 1.1 2001/11/10 23:14:09 thorpej Exp $ */
/*-
* Copyright (c) 2001 ARM Limited
* Copyright (c) 1997,1998 Mark Brinicombe.
* Copyright (c) 1997 Causality Limited
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Causality Limited.
* 4. The name of Causality Limited may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY CAUSALITY LIMITED ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL CAUSALITY LIMITED BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* ARM9 assembly functions for CPU / MMU / TLB specific operations
*
*/
#include <machine/asm.h>
__FBSDID("$FreeBSD$");
/*
* TLB functions
*/
ENTRY(armv4_tlb_flushID)
mcr p15, 0, r0, c8, c7, 0 /* flush I+D tlb */
RET
END(armv4_tlb_flushID)
ENTRY(armv4_tlb_flushD)
mcr p15, 0, r0, c8, c6, 0 /* flush D tlb */
RET
END(armv4_tlb_flushD)
ENTRY(armv4_tlb_flushD_SE)
mcr p15, 0, r0, c8, c6, 1 /* flush D tlb single entry */
RET
END(armv4_tlb_flushD_SE)
/*
* Other functions
*/
ENTRY(armv4_drain_writebuf)
mcr p15, 0, r0, c7, c10, 4 /* drain write buffer */
RET
END(armv4_drain_writebuf)
ENTRY(armv4_idcache_inv_all)
mov r0, #0
mcr p15, 0, r0, c7, c7, 0 /* invalidate all I+D cache */
RET
END(armv4_drain_writebuf)
