cache.c revision 1.2.10.2
1 1.2.10.2 bouyer /* $NetBSD: cache.c,v 1.2.10.2 2007/11/13 15:58:19 bouyer Exp $ */ 2 1.2.10.2 bouyer 3 1.2.10.2 bouyer /* 4 1.2.10.2 bouyer * Copyright 2001 Wasabi Systems, Inc. 5 1.2.10.2 bouyer * All rights reserved. 6 1.2.10.2 bouyer * 7 1.2.10.2 bouyer * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 1.2.10.2 bouyer * 9 1.2.10.2 bouyer * Redistribution and use in source and binary forms, with or without 10 1.2.10.2 bouyer * modification, are permitted provided that the following conditions 11 1.2.10.2 bouyer * are met: 12 1.2.10.2 bouyer * 1. Redistributions of source code must retain the above copyright 13 1.2.10.2 bouyer * notice, this list of conditions and the following disclaimer. 14 1.2.10.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 15 1.2.10.2 bouyer * notice, this list of conditions and the following disclaimer in the 16 1.2.10.2 bouyer * documentation and/or other materials provided with the distribution. 17 1.2.10.2 bouyer * 3. All advertising materials mentioning features or use of this software 18 1.2.10.2 bouyer * must display the following acknowledgement: 19 1.2.10.2 bouyer * This product includes software developed for the NetBSD Project by 20 1.2.10.2 bouyer * Wasabi Systems, Inc. 21 1.2.10.2 bouyer * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 1.2.10.2 bouyer * or promote products derived from this software without specific prior 23 1.2.10.2 bouyer * written permission. 24 1.2.10.2 bouyer * 25 1.2.10.2 bouyer * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 1.2.10.2 bouyer * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 1.2.10.2 bouyer * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 1.2.10.2 bouyer * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 1.2.10.2 bouyer * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 1.2.10.2 bouyer * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 1.2.10.2 bouyer * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 1.2.10.2 bouyer * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 1.2.10.2 bouyer * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 1.2.10.2 bouyer * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 1.2.10.2 bouyer * POSSIBILITY OF SUCH DAMAGE. 36 1.2.10.2 bouyer */ 37 1.2.10.2 bouyer 38 1.2.10.2 bouyer #include <lib/libsa/stand.h> 39 1.2.10.2 bouyer #include <lib/libkern/libkern.h> 40 1.2.10.2 bouyer 41 1.2.10.2 bouyer #include <mips/cpuregs.h> 42 1.2.10.2 bouyer #include <mips/cache_r4k.h> 43 1.2.10.2 bouyer 44 1.2.10.2 bouyer #include "boot.h" 45 1.2.10.2 bouyer 46 1.2.10.2 bouyer #define round_line(x) (((x) + (CACHELINESIZE - 1)) & ~(CACHELINESIZE - 1)) 47 1.2.10.2 bouyer #define trunc_line(x) ((x) & ~(CACHELINESIZE - 1)) 48 1.2.10.2 bouyer 49 1.2.10.2 bouyer __asm(".set mips3"); 50 1.2.10.2 bouyer 51 1.2.10.2 bouyer void 52 1.2.10.2 bouyer pdcache_inv(uint32_t va, u_int size) 53 1.2.10.2 bouyer { 54 1.2.10.2 bouyer uint32_t eva; 55 1.2.10.2 bouyer 56 1.2.10.2 bouyer eva = round_line(va + size); 57 1.2.10.2 bouyer va = trunc_line(va); 58 1.2.10.2 bouyer 59 1.2.10.2 bouyer while (va < eva) { 60 1.2.10.2 bouyer cache_op_r4k_line(va, CACHE_R4K_D|CACHEOP_R4K_HIT_INV); 61 1.2.10.2 bouyer va += CACHELINESIZE; 62 1.2.10.2 bouyer } 63 1.2.10.2 bouyer } 64 1.2.10.2 bouyer 65 1.2.10.2 bouyer void 66 1.2.10.2 bouyer pdcache_wb(uint32_t va, u_int size) 67 1.2.10.2 bouyer { 68 1.2.10.2 bouyer uint32_t eva; 69 1.2.10.2 bouyer 70 1.2.10.2 bouyer eva = round_line(va + size); 71 1.2.10.2 bouyer va = trunc_line(va); 72 1.2.10.2 bouyer 73 1.2.10.2 bouyer while (va < eva) { 74 1.2.10.2 bouyer cache_op_r4k_line(va, CACHE_R4K_D|CACHEOP_R4K_HIT_WB); 75 1.2.10.2 bouyer va += CACHELINESIZE; 76 1.2.10.2 bouyer } 77 1.2.10.2 bouyer } 78 1.2.10.2 bouyer 79 1.2.10.2 bouyer void 80 1.2.10.2 bouyer pdcache_wbinv(uint32_t va, u_int size) 81 1.2.10.2 bouyer { 82 1.2.10.2 bouyer uint32_t eva; 83 1.2.10.2 bouyer 84 1.2.10.2 bouyer eva = round_line(va + size); 85 1.2.10.2 bouyer va = trunc_line(va); 86 1.2.10.2 bouyer 87 1.2.10.2 bouyer while (va < eva) { 88 1.2.10.2 bouyer cache_op_r4k_line(va, CACHE_R4K_D|CACHEOP_R4K_HIT_WB_INV); 89 1.2.10.2 bouyer va += CACHELINESIZE; 90 1.2.10.2 bouyer } 91 1.2.10.2 bouyer } 92
Indexes created Mon Sep 29 21:09:56 GMT 2025