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/arch/frv/lib/cache.S

https://bitbucket.org/evzijst/gittest
Assembly | 98 lines | 84 code | 14 blank | 0 comment | 0 complexity | a4bf986613f83a40b23d59ec1309ee22 MD5 | raw file
 1/* cache.S: cache managment routines
 2 *
 3 * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
 4 * Written by David Howells (dhowells@redhat.com)
 5 *
 6 * This program is free software; you can redistribute it and/or
 7 * modify it under the terms of the GNU General Public License
 8 * as published by the Free Software Foundation; either version
 9 * 2 of the License, or (at your option) any later version.
10 */
11
12#include <asm/spr-regs.h>
13#include <asm/cache.h>
14
15        .text
16        .p2align	4
17
18###############################################################################
19#
20# Write back a range of dcache
21# - void frv_dcache_writeback(unsigned long start [GR8], unsigned long size [GR9])
22#
23###############################################################################
24        .globl		frv_dcache_writeback
25        .type		frv_dcache_writeback,@function
26frv_dcache_writeback:
27	andi		gr8,~(L1_CACHE_BYTES-1),gr8
28
292:	dcf		@(gr8,gr0)
30	addi		gr8,#L1_CACHE_BYTES,gr8
31	cmp		gr9,gr8,icc0
32	bhi		icc0,#2,2b
33
34	membar
35	bralr
36	.size		frv_dcache_writeback, .-frv_dcache_writeback
37
38##############################################################################
39#
40# Invalidate a range of dcache and icache
41# - void frv_cache_invalidate(unsigned long start [GR8], unsigned long end [GR9]);
42#
43###############################################################################
44        .globl		frv_cache_invalidate
45        .type		frv_cache_invalidate,@function
46frv_cache_invalidate:
47	andi		gr8,~(L1_CACHE_BYTES-1),gr8
48
492:	dci		@(gr8,gr0)
50	ici		@(gr8,gr0)
51	addi		gr8,#L1_CACHE_BYTES,gr8
52	cmp		gr9,gr8,icc0
53	bhi		icc0,#2,2b
54
55	membar
56	bralr
57	.size		frv_cache_invalidate, .-frv_cache_invalidate
58
59##############################################################################
60#
61# Invalidate a range of icache
62# - void frv_icache_invalidate(unsigned long start [GR8], unsigned long end [GR9]);
63#
64###############################################################################
65        .globl		frv_icache_invalidate
66        .type		frv_icache_invalidate,@function
67frv_icache_invalidate:
68	andi		gr8,~(L1_CACHE_BYTES-1),gr8
69
702:	ici		@(gr8,gr0)
71	addi		gr8,#L1_CACHE_BYTES,gr8
72	cmp		gr9,gr8,icc0
73	bhi		icc0,#2,2b
74
75	membar
76	bralr
77	.size		frv_icache_invalidate, .-frv_icache_invalidate
78
79###############################################################################
80#
81# Write back and invalidate a range of dcache and icache
82# - void frv_cache_wback_inv(unsigned long start [GR8], unsigned long end [GR9])
83#
84###############################################################################
85        .globl		frv_cache_wback_inv
86        .type		frv_cache_wback_inv,@function
87frv_cache_wback_inv:
88	andi		gr8,~(L1_CACHE_BYTES-1),gr8
89
902:	dcf		@(gr8,gr0)
91	ici		@(gr8,gr0)
92	addi		gr8,#L1_CACHE_BYTES,gr8
93	cmp		gr9,gr8,icc0
94	bhi		icc0,#2,2b
95
96	membar
97	bralr
98	.size		frv_cache_wback_inv, .-frv_cache_wback_inv