cache.c revision 1.2.24.2
1 1.2.24.2 wrstuden /* $NetBSD: cache.c,v 1.2.24.2 2008/01/06 05:00:53 wrstuden Exp $ */ 2 1.2.24.2 wrstuden 3 1.2.24.2 wrstuden /* 4 1.2.24.2 wrstuden * Copyright 2001 Wasabi Systems, Inc. 5 1.2.24.2 wrstuden * All rights reserved. 6 1.2.24.2 wrstuden * 7 1.2.24.2 wrstuden * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 1.2.24.2 wrstuden * 9 1.2.24.2 wrstuden * Redistribution and use in source and binary forms, with or without 10 1.2.24.2 wrstuden * modification, are permitted provided that the following conditions 11 1.2.24.2 wrstuden * are met: 12 1.2.24.2 wrstuden * 1. Redistributions of source code must retain the above copyright 13 1.2.24.2 wrstuden * notice, this list of conditions and the following disclaimer. 14 1.2.24.2 wrstuden * 2. Redistributions in binary form must reproduce the above copyright 15 1.2.24.2 wrstuden * notice, this list of conditions and the following disclaimer in the 16 1.2.24.2 wrstuden * documentation and/or other materials provided with the distribution. 17 1.2.24.2 wrstuden * 3. All advertising materials mentioning features or use of this software 18 1.2.24.2 wrstuden * must display the following acknowledgement: 19 1.2.24.2 wrstuden * This product includes software developed for the NetBSD Project by 20 1.2.24.2 wrstuden * Wasabi Systems, Inc. 21 1.2.24.2 wrstuden * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 1.2.24.2 wrstuden * or promote products derived from this software without specific prior 23 1.2.24.2 wrstuden * written permission. 24 1.2.24.2 wrstuden * 25 1.2.24.2 wrstuden * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 1.2.24.2 wrstuden * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 1.2.24.2 wrstuden * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 1.2.24.2 wrstuden * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 1.2.24.2 wrstuden * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 1.2.24.2 wrstuden * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 1.2.24.2 wrstuden * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 1.2.24.2 wrstuden * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 1.2.24.2 wrstuden * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 1.2.24.2 wrstuden * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 1.2.24.2 wrstuden * POSSIBILITY OF SUCH DAMAGE. 36 1.2.24.2 wrstuden */ 37 1.2.24.2 wrstuden 38 1.2.24.2 wrstuden #include <lib/libsa/stand.h> 39 1.2.24.2 wrstuden #include <lib/libkern/libkern.h> 40 1.2.24.2 wrstuden 41 1.2.24.2 wrstuden #include <mips/cpuregs.h> 42 1.2.24.2 wrstuden #include <mips/cache_r4k.h> 43 1.2.24.2 wrstuden 44 1.2.24.2 wrstuden #include "boot.h" 45 1.2.24.2 wrstuden 46 1.2.24.2 wrstuden #define round_line(x) (((x) + (CACHELINESIZE - 1)) & ~(CACHELINESIZE - 1)) 47 1.2.24.2 wrstuden #define trunc_line(x) ((x) & ~(CACHELINESIZE - 1)) 48 1.2.24.2 wrstuden 49 1.2.24.2 wrstuden __asm(".set mips3"); 50 1.2.24.2 wrstuden 51 1.2.24.2 wrstuden void 52 1.2.24.2 wrstuden pdcache_inv(uint32_t va, u_int size) 53 1.2.24.2 wrstuden { 54 1.2.24.2 wrstuden uint32_t eva; 55 1.2.24.2 wrstuden 56 1.2.24.2 wrstuden eva = round_line(va + size); 57 1.2.24.2 wrstuden va = trunc_line(va); 58 1.2.24.2 wrstuden 59 1.2.24.2 wrstuden while (va < eva) { 60 1.2.24.2 wrstuden cache_op_r4k_line(va, CACHE_R4K_D|CACHEOP_R4K_HIT_INV); 61 1.2.24.2 wrstuden va += CACHELINESIZE; 62 1.2.24.2 wrstuden } 63 1.2.24.2 wrstuden } 64 1.2.24.2 wrstuden 65 1.2.24.2 wrstuden void 66 1.2.24.2 wrstuden pdcache_wb(uint32_t va, u_int size) 67 1.2.24.2 wrstuden { 68 1.2.24.2 wrstuden uint32_t eva; 69 1.2.24.2 wrstuden 70 1.2.24.2 wrstuden eva = round_line(va + size); 71 1.2.24.2 wrstuden va = trunc_line(va); 72 1.2.24.2 wrstuden 73 1.2.24.2 wrstuden while (va < eva) { 74 1.2.24.2 wrstuden cache_op_r4k_line(va, CACHE_R4K_D|CACHEOP_R4K_HIT_WB); 75 1.2.24.2 wrstuden va += CACHELINESIZE; 76 1.2.24.2 wrstuden } 77 1.2.24.2 wrstuden } 78 1.2.24.2 wrstuden 79 1.2.24.2 wrstuden void 80 1.2.24.2 wrstuden pdcache_wbinv(uint32_t va, u_int size) 81 1.2.24.2 wrstuden { 82 1.2.24.2 wrstuden uint32_t eva; 83 1.2.24.2 wrstuden 84 1.2.24.2 wrstuden eva = round_line(va + size); 85 1.2.24.2 wrstuden va = trunc_line(va); 86 1.2.24.2 wrstuden 87 1.2.24.2 wrstuden while (va < eva) { 88 1.2.24.2 wrstuden cache_op_r4k_line(va, CACHE_R4K_D|CACHEOP_R4K_HIT_WB_INV); 89 1.2.24.2 wrstuden va += CACHELINESIZE; 90 1.2.24.2 wrstuden } 91 1.2.24.2 wrstuden } 92
Indexes created Mon Sep 29 21:09:56 GMT 2025