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      1 /*	$NetBSD: cache_print.h,v 1.1 2018/01/16 08:23:17 mrg Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1997 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Paul Kranenburg.
      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  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 /*
     33  * This works for kernel and cpuctl(8).  It only relies upon having
     34  * a working printf() in the environment.
     35  */
     36 
     37 static void cache_printf_backend(struct cacheinfo *ci, const char *cpuname);
     38 
     39 static void
     40 cache_printf_backend(struct cacheinfo *ci, const char *cpuname)
     41 {
     42 
     43 	if (ci->c_flags & CACHE_TRAPPAGEBUG)
     44 		printf("%s: cache chip bug; trap page uncached\n", cpuname);
     45 
     46 	printf("%s: ", cpuname);
     47 
     48 	if (ci->c_totalsize == 0) {
     49 		printf("no cache\n");
     50 		return;
     51 	}
     52 
     53 	if (ci->c_split) {
     54 		const char *sep = "";
     55 
     56 		printf("%s", (ci->c_physical ? "physical " : ""));
     57 		if (ci->ic_totalsize > 0) {
     58 			printf("%s%dK instruction (%d b/l)", sep,
     59 			    ci->ic_totalsize/1024, ci->ic_linesize);
     60 			sep = ", ";
     61 		}
     62 		if (ci->dc_totalsize > 0) {
     63 			printf("%s%dK data (%d b/l)", sep,
     64 			    ci->dc_totalsize/1024, ci->dc_linesize);
     65 		}
     66 	} else if (ci->c_physical) {
     67 		/* combined, physical */
     68 		printf("physical %dK combined cache (%d bytes/line)",
     69 		    ci->c_totalsize/1024, ci->c_linesize);
     70 	} else {
     71 		/* combined, virtual */
     72 		printf("%dK byte write-%s, %d bytes/line, %cw flush",
     73 		    ci->c_totalsize/1024,
     74 		    (ci->c_vactype == VAC_WRITETHROUGH) ? "through" : "back",
     75 		    ci->c_linesize,
     76 		    ci->c_hwflush ? 'h' : 's');
     77 	}
     78 
     79 	if (ci->ec_totalsize > 0) {
     80 		printf(", %dK external (%d b/l)",
     81 		    ci->ec_totalsize/1024, ci->ec_linesize);
     82 	}
     83 	printf(": ");
     84 	if (ci->c_enabled)
     85 		printf("cache enabled");
     86 	printf("\n");
     87 }
     88