cache.c revision 1.2.2.2
1 1.2.2.2 joerg /* $NetBSD: cache.c,v 1.2.2.2 2007/10/31 23:13:57 joerg Exp $ */ 2 1.2.2.2 joerg 3 1.2.2.2 joerg /* 4 1.2.2.2 joerg * Copyright 2001 Wasabi Systems, Inc. 5 1.2.2.2 joerg * All rights reserved. 6 1.2.2.2 joerg * 7 1.2.2.2 joerg * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 1.2.2.2 joerg * 9 1.2.2.2 joerg * Redistribution and use in source and binary forms, with or without 10 1.2.2.2 joerg * modification, are permitted provided that the following conditions 11 1.2.2.2 joerg * are met: 12 1.2.2.2 joerg * 1. Redistributions of source code must retain the above copyright 13 1.2.2.2 joerg * notice, this list of conditions and the following disclaimer. 14 1.2.2.2 joerg * 2. Redistributions in binary form must reproduce the above copyright 15 1.2.2.2 joerg * notice, this list of conditions and the following disclaimer in the 16 1.2.2.2 joerg * documentation and/or other materials provided with the distribution. 17 1.2.2.2 joerg * 3. All advertising materials mentioning features or use of this software 18 1.2.2.2 joerg * must display the following acknowledgement: 19 1.2.2.2 joerg * This product includes software developed for the NetBSD Project by 20 1.2.2.2 joerg * Wasabi Systems, Inc. 21 1.2.2.2 joerg * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 1.2.2.2 joerg * or promote products derived from this software without specific prior 23 1.2.2.2 joerg * written permission. 24 1.2.2.2 joerg * 25 1.2.2.2 joerg * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 1.2.2.2 joerg * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 1.2.2.2 joerg * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 1.2.2.2 joerg * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 1.2.2.2 joerg * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 1.2.2.2 joerg * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 1.2.2.2 joerg * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 1.2.2.2 joerg * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 1.2.2.2 joerg * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 1.2.2.2 joerg * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 1.2.2.2 joerg * POSSIBILITY OF SUCH DAMAGE. 36 1.2.2.2 joerg */ 37 1.2.2.2 joerg 38 1.2.2.2 joerg #include <lib/libsa/stand.h> 39 1.2.2.2 joerg #include <lib/libkern/libkern.h> 40 1.2.2.2 joerg 41 1.2.2.2 joerg #include <mips/cpuregs.h> 42 1.2.2.2 joerg #include <mips/cache_r4k.h> 43 1.2.2.2 joerg 44 1.2.2.2 joerg #include "boot.h" 45 1.2.2.2 joerg 46 1.2.2.2 joerg #define round_line(x) (((x) + (CACHELINESIZE - 1)) & ~(CACHELINESIZE - 1)) 47 1.2.2.2 joerg #define trunc_line(x) ((x) & ~(CACHELINESIZE - 1)) 48 1.2.2.2 joerg 49 1.2.2.2 joerg __asm(".set mips3"); 50 1.2.2.2 joerg 51 1.2.2.2 joerg void 52 1.2.2.2 joerg pdcache_inv(uint32_t va, u_int size) 53 1.2.2.2 joerg { 54 1.2.2.2 joerg uint32_t eva; 55 1.2.2.2 joerg 56 1.2.2.2 joerg eva = round_line(va + size); 57 1.2.2.2 joerg va = trunc_line(va); 58 1.2.2.2 joerg 59 1.2.2.2 joerg while (va < eva) { 60 1.2.2.2 joerg cache_op_r4k_line(va, CACHE_R4K_D|CACHEOP_R4K_HIT_INV); 61 1.2.2.2 joerg va += CACHELINESIZE; 62 1.2.2.2 joerg } 63 1.2.2.2 joerg } 64 1.2.2.2 joerg 65 1.2.2.2 joerg void 66 1.2.2.2 joerg pdcache_wb(uint32_t va, u_int size) 67 1.2.2.2 joerg { 68 1.2.2.2 joerg uint32_t eva; 69 1.2.2.2 joerg 70 1.2.2.2 joerg eva = round_line(va + size); 71 1.2.2.2 joerg va = trunc_line(va); 72 1.2.2.2 joerg 73 1.2.2.2 joerg while (va < eva) { 74 1.2.2.2 joerg cache_op_r4k_line(va, CACHE_R4K_D|CACHEOP_R4K_HIT_WB); 75 1.2.2.2 joerg va += CACHELINESIZE; 76 1.2.2.2 joerg } 77 1.2.2.2 joerg } 78 1.2.2.2 joerg 79 1.2.2.2 joerg void 80 1.2.2.2 joerg pdcache_wbinv(uint32_t va, u_int size) 81 1.2.2.2 joerg { 82 1.2.2.2 joerg uint32_t eva; 83 1.2.2.2 joerg 84 1.2.2.2 joerg eva = round_line(va + size); 85 1.2.2.2 joerg va = trunc_line(va); 86 1.2.2.2 joerg 87 1.2.2.2 joerg while (va < eva) { 88 1.2.2.2 joerg cache_op_r4k_line(va, CACHE_R4K_D|CACHEOP_R4K_HIT_WB_INV); 89 1.2.2.2 joerg va += CACHELINESIZE; 90 1.2.2.2 joerg } 91 1.2.2.2 joerg } 92
Indexes created Mon Sep 29 21:09:56 GMT 2025