1 /* $NetBSD: cpufunc_asm_armv4.S,v 1.1 2001/11/10 23:14:09 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 2001 ARM Limited
5 * Copyright (c) 1997,1998 Mark Brinicombe.
6 * Copyright (c) 1997 Causality Limited
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by Causality Limited.
20 * 4. The name of Causality Limited may not be used to endorse or promote
21 * products derived from this software without specific prior written
22 * permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY CAUSALITY LIMITED ``AS IS'' AND ANY EXPRESS
25 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
26 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
27 * DISCLAIMED. IN NO EVENT SHALL CAUSALITY LIMITED BE LIABLE FOR ANY DIRECT,
28 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
29 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * ARM9 assembly functions for CPU / MMU / TLB specific operations
37 *
38 */
39
40 #include <machine/asm.h>
41 __FBSDID("$FreeBSD: src/sys/arm/arm/cpufunc_asm_armv4.S,v 1.3 2005/01/05 21:58:47 imp Exp $");
42
43 /*
44 * TLB functions
45 */
46 ENTRY(armv4_tlb_flushID)
47 mcr p15, 0, r0, c8, c7, 0 /* flush I+D tlb */
48 RET
49
50 ENTRY(armv4_tlb_flushI)
51 mcr p15, 0, r0, c8, c5, 0 /* flush I tlb */
52 RET
53
54 ENTRY(armv4_tlb_flushD)
55 mcr p15, 0, r0, c8, c6, 0 /* flush D tlb */
56 RET
57
58 ENTRY(armv4_tlb_flushD_SE)
59 mcr p15, 0, r0, c8, c6, 1 /* flush D tlb single entry */
60 RET
61
62 /*
63 * Other functions
64 */
65 ENTRY(armv4_drain_writebuf)
66 mcr p15, 0, r0, c7, c10, 4 /* drain write buffer */
67 RET
Cache object: 82987c55fc1cb7bbe10cd75c1b83b83b
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