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MIPS: Loongson: Add Loongson-3A R2 basic support
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1/*
2 * Cache operations for the cache instruction.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 *
8 * (C) Copyright 1996, 97, 99, 2002, 03 Ralf Baechle
9 * (C) Copyright 1999 Silicon Graphics, Inc.
10 */
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11#ifndef __ASM_CACHEOPS_H
12#define __ASM_CACHEOPS_H
1da177e4 13
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14/*
15 * Most cache ops are split into a 2 bit field identifying the cache, and a 3
16 * bit field identifying the cache operation.
17 */
18#define CacheOp_Cache 0x03
19#define CacheOp_Op 0x1c
20
21#define Cache_I 0x00
22#define Cache_D 0x01
23#define Cache_T 0x02
b2edcfc8 24#define Cache_V 0x02 /* Loongson-3 */
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25#define Cache_S 0x03
26
27#define Index_Writeback_Inv 0x00
28#define Index_Load_Tag 0x04
29#define Index_Store_Tag 0x08
30#define Hit_Invalidate 0x10
31#define Hit_Writeback_Inv 0x14 /* not with Cache_I though */
32#define Hit_Writeback 0x18
33
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34/*
35 * Cache Operations available on all MIPS processors with R4000-style caches
36 */
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37#define Index_Invalidate_I (Cache_I | Index_Writeback_Inv)
38#define Index_Writeback_Inv_D (Cache_D | Index_Writeback_Inv)
39#define Index_Load_Tag_I (Cache_I | Index_Load_Tag)
40#define Index_Load_Tag_D (Cache_D | Index_Load_Tag)
41#define Index_Store_Tag_I (Cache_I | Index_Store_Tag)
42#define Index_Store_Tag_D (Cache_D | Index_Store_Tag)
43#define Hit_Invalidate_I (Cache_I | Hit_Invalidate)
44#define Hit_Invalidate_D (Cache_D | Hit_Invalidate)
45#define Hit_Writeback_Inv_D (Cache_D | Hit_Writeback_Inv)
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46
47/*
48 * R4000-specific cacheops
49 */
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50#define Create_Dirty_Excl_D (Cache_D | 0x0c)
51#define Fill (Cache_I | 0x14)
52#define Hit_Writeback_I (Cache_I | Hit_Writeback)
53#define Hit_Writeback_D (Cache_D | Hit_Writeback)
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54
55/*
56 * R4000SC and R4400SC-specific cacheops
57 */
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58#define Cache_SI 0x02
59#define Cache_SD 0x03
60
61#define Index_Invalidate_SI (Cache_SI | Index_Writeback_Inv)
62#define Index_Writeback_Inv_SD (Cache_SD | Index_Writeback_Inv)
63#define Index_Load_Tag_SI (Cache_SI | Index_Load_Tag)
64#define Index_Load_Tag_SD (Cache_SD | Index_Load_Tag)
65#define Index_Store_Tag_SI (Cache_SI | Index_Store_Tag)
66#define Index_Store_Tag_SD (Cache_SD | Index_Store_Tag)
67#define Create_Dirty_Excl_SD (Cache_SD | 0x0c)
68#define Hit_Invalidate_SI (Cache_SI | Hit_Invalidate)
69#define Hit_Invalidate_SD (Cache_SD | Hit_Invalidate)
70#define Hit_Writeback_Inv_SD (Cache_SD | Hit_Writeback_Inv)
71#define Hit_Writeback_SD (Cache_SD | Hit_Writeback)
72#define Hit_Set_Virtual_SI (Cache_SI | 0x1c)
73#define Hit_Set_Virtual_SD (Cache_SD | 0x1c)
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74
75/*
76 * R5000-specific cacheops
77 */
5fa393c8 78#define R5K_Page_Invalidate_S (Cache_S | 0x14)
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79
80/*
81 * RM7000-specific cacheops
82 */
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83#define Page_Invalidate_T (Cache_T | 0x14)
84#define Index_Store_Tag_T (Cache_T | Index_Store_Tag)
85#define Index_Load_Tag_T (Cache_T | Index_Load_Tag)
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86
87/*
2e4f9582 88 * R10000-specific cacheops
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89 *
90 * Cacheops 0x02, 0x06, 0x0a, 0x0c-0x0e, 0x16, 0x1a and 0x1e are unused.
91 * Most of the _S cacheops are identical to the R4000SC _SD cacheops.
92 */
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93#define Index_Writeback_Inv_S (Cache_S | Index_Writeback_Inv)
94#define Index_Load_Tag_S (Cache_S | Index_Load_Tag)
95#define Index_Store_Tag_S (Cache_S | Index_Store_Tag)
96#define Hit_Invalidate_S (Cache_S | Hit_Invalidate)
7b784c63 97#define Cache_Barrier 0x14
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98#define Hit_Writeback_Inv_S (Cache_S | Hit_Writeback_Inv)
99#define Index_Load_Data_I (Cache_I | 0x18)
100#define Index_Load_Data_D (Cache_D | 0x18)
101#define Index_Load_Data_S (Cache_S | 0x18)
102#define Index_Store_Data_I (Cache_I | 0x1c)
103#define Index_Store_Data_D (Cache_D | 0x1c)
104#define Index_Store_Data_S (Cache_S | 0x1c)
1da177e4 105
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106/*
107 * Loongson2-specific cacheops
108 */
5fa393c8 109#define Hit_Invalidate_I_Loongson2 (Cache_I | 0x00)
14bd8c08 110
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111/*
112 * Loongson3-specific cacheops
113 */
114#define Index_Writeback_Inv_V (Cache_V | Index_Writeback_Inv)
115
1da177e4 116#endif /* __ASM_CACHEOPS_H */