1 /* $NetBSD: cache_sh3.h,v 1.6 2002/04/28 17:10:33 uch Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * SH3: SH7708, SH7708S, SH7708R, SH7709, SH7709A 41 */ 42 #ifndef _SH3_CACHE_SH3_H_ 43 #define _SH3_CACHE_SH3_H_ 44 #include <sh3/devreg.h> 45 #ifdef _KERNEL 46 47 #define SH3_CCR 0xffffffec 48 #define SH3_CCR_CE 0x00000001 49 #define SH3_CCR_WT 0x00000002 50 /* SH7708 don't have CB bit */ 51 #define SH3_CCR_CB 0x00000004 52 #define SH3_CCR_CF 0x00000008 53 /* SH7709A don't have RA bit */ 54 #define SH3_CCR_RA 0x00000020 55 56 /* SH7709A specific cache-lock control register */ 57 #define SH7709A_CCR2 0xa40000b0 58 #define SH7709A_CCR2_W2LOCK 0x00000001 59 #define SH7709A_CCR2_W2LOAD 0x00000002 60 #define SH7709A_CCR2_W3LOCK 0x00000100 61 #define SH7709A_CCR2_W3LOAD 0x00000200 62 63 #define SH3_CCA 0xf0000000 64 /* Address specification */ 65 #define CCA_A 0x00000008 66 #define CCA_ENTRY_SHIFT 4 67 /* 8KB cache (SH7708, SH7708S, SH7708R, SH7709) */ 68 #define CCA_8K_ENTRY 128 69 #define CCA_8K_ENTRY_MASK 0x000007f0 /* [10:4] */ 70 #define CCA_8K_WAY_SHIFT 11 71 #define CCA_8K_WAY_MASK 0x00001800 /* [12:11] */ 72 /* 16KB cache (SH7709A) */ 73 #define CCA_16K_ENTRY 256 74 #define CCA_16K_ENTRY_MASK 0x00000ff0 /* [11:4] */ 75 #define CCA_16K_WAY_SHIFT 12 76 #define CCA_16K_WAY_MASK 0x00003000 /* [13:12] */ 77 78 /* Data specification */ 79 #define CCA_V 0x00000001 80 #define CCA_U 0x00000002 81 #define CCA_LRU_SHIFT 4 82 #define CCA_LRU_MASK 0x000003f0 /* [9:4] */ 83 #define CCA_TAGADDR_SHIFT 10 84 #define CCA_TAGADDR_MASK 0xfffffc00 /* [31:10] */ 85 86 #define SH3_CCD 0xf1000000 87 /* Address specification */ 88 #define CCD_L_SHIFT 2 89 #define CCD_L_MASK 0x0000000c /* [3:2] */ 90 #define CCD_E_SHIFT 4 91 #define CCD_8K_E_MASK 0x000007f0 /* [10:4] */ 92 #define CCD_16K_E_MASK 0x00000ff0 /* [11:4] */ 93 #define CCD_8K_W_SHIFT 11 94 #define CCD_8K_W_MASK 0x00001800 /* [12:11] */ 95 #define CCD_16K_W_SHIFT 12 96 #define CCD_16K_W_MASK 0x00003000 /* [13:12] */ 97 /* Data specification */ 98 99 /* 100 * Configuration 101 */ 102 #define SH3_CACHE_LINESZ 16 103 #define SH3_CACHE_NORMAL_WAY 4 104 #define SH3_CACHE_RAMMODE_WAY 2 105 106 #define SH3_CACHE_8K_ENTRY 128 107 #define SH3_CACHE_8K_WAY_NORMAL 4 108 #define SH3_CACHE_8K_WAY_RAMMODE 2 109 110 #define SH3_CACHE_16K_ENTRY 256 111 #define SH3_CACHE_16K_WAY 4 112 113 /* 114 * cache flush macro for locore level code. 115 */ 116 #define SH3_CACHE_8K_FLUSH(maxway) \ 117 do { \ 118 u_int32_t __e, __w, __wa, __a; \ 119 \ 120 for (__w = 0; __w < maxway; __w++) { \ 121 __wa = SH3_CCA | __w << CCA_8K_WAY_SHIFT; \ 122 for (__e = 0; __e < CCA_8K_ENTRY; __e++) { \ 123 __a = __wa |(__e << CCA_ENTRY_SHIFT); \ 124 (*(__volatile__ u_int32_t *)__a) &= \ 125 ~(CCA_U | CCA_V); \ 126 } \ 127 } \ 128 } while (/*CONSTCOND*/0) 129 130 #define SH3_CACHE_16K_FLUSH() \ 131 do { \ 132 u_int32_t __e, __w, __wa, __a; \ 133 \ 134 for (__w = 0; __w < SH3_CACHE_16K_WAY; __w++) { \ 135 __wa = SH3_CCA | __w << CCA_16K_WAY_SHIFT; \ 136 for (__e = 0; __e < CCA_16K_ENTRY; __e++) { \ 137 __a = __wa |(__e << CCA_ENTRY_SHIFT); \ 138 (*(__volatile__ u_int32_t *)__a) &= \ 139 ~(CCA_U | CCA_V); \ 140 } \ 141 } \ 142 } while (/*CONSTCOND*/0) 143 144 #define SH7708_CACHE_FLUSH() SH3_CACHE_8K_FLUSH(4) 145 #define SH7708_CACHE_FLUSH_RAMMODE() SH3_CACHE_8K_FLUSH(2) 146 #define SH7708S_CACHE_FLUSH() SH3_CACHE_8K_FLUSH(4) 147 #define SH7708S_CACHE_FLUSH_RAMMODE() SH3_CACHE_8K_FLUSH(2) 148 #define SH7708R_CACHE_FLUSH() SH3_CACHE_8K_FLUSH(4) 149 #define SH7708R_CACHE_FLUSH_RAMMODE() SH3_CACHE_8K_FLUSH(2) 150 #define SH7709_CACHE_FLUSH() SH3_CACHE_8K_FLUSH(4) 151 #define SH7709_CACHE_FLUSH_RAMMODE() SH3_CACHE_8K_FLUSH(2) 152 #define SH7709A_CACHE_FLUSH() SH3_CACHE_16K_FLUSH() 153 154 #ifndef _LOCORE 155 extern void sh3_cache_config(void); 156 #endif 157 #endif /* _KERNEL */ 158 #endif /* !_SH3_CACHE_SH3_H_ */ 159