/* $OpenBSD: procfs_machdep.c,v 1.6 2006/12/20 17:50:40 gwk Exp $ */ /* $NetBSD: procfs_machdep.c,v 1.6 2001/02/21 21:39:59 jdolecek Exp $ */ /* * Copyright (c) 2001 Wasabi Systems, Inc. * All rights reserved. * * Written by Frank van der Linden for Wasabi Systems, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed for the NetBSD Project by * Wasabi Systems, Inc. * 4. The name of Wasabi Systems, Inc. may not be used to endorse * or promote products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include #include #include #include extern int i386_fpu_present, i386_fpu_exception, i386_fpu_fdivbug; static const char * const i386_features[] = { "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce", "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov", "pat", "pse36", "pn", "clflush", NULL, "dts", "acpi", "mmx", "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe" }; /* * Linux-style /proc/cpuinfo. * Only used when procfs is mounted with -o linux. * * In the multiprocessor case, this should be a loop over all CPUs. */ int procfs_getcpuinfstr(char *buf, int *len) { int left, l, i; char featurebuf[256], *p; p = featurebuf; left = sizeof featurebuf; for (i = 0; i < 32; i++) { if ((cpu_feature & (1 << i)) && i386_features[i]) { l = snprintf(p, left, "%s ", i386_features[i]); if (l == -1) l = 0; else if (l >= left) l = left - 1; left -= l; p += l; if (left <= 0) break; } } p = buf; left = *len; l = snprintf(p, left, "processor\t: %d\n" "vendor_id\t: %s\n" "cpu family\t: %d\n" "model\t\t: %d\n" "model name\t: %s\n" "stepping\t: ", 0, cpu_vendor, cpuid_level >= 0 ? ((cpu_id >> 8) & 15) : cpu_class + 3, cpuid_level >= 0 ? ((cpu_id >> 4) & 15) : 0, cpu_model ); if (l == -1) l = 0; else if (l >= left) l = left - 1; left -= l; p += l; if (left <= 0) return 0; if (cpuid_level >= 0) l = snprintf(p, left, "%d\n", cpu_id & 15); else l = snprintf(p, left, "unknown\n"); if (l == -1) l = 0; else if (l >= left) l = left - 1; left -= l; p += l; if (left <= 0) return 0; #if defined(I586_CPU) || defined(I686_CPU) if (cpuspeed != 0) l = snprintf(p, left, "cpu MHz\t\t: %d\n", cpuspeed); else #endif l = snprintf(p, left, "cpu MHz\t\t: unknown\n"); if (l == -1) l = 0; else if (l >= left) l = left - 1; left -= l; p += l; if (left <= 0) return 0; l = snprintf(p, left, "fdiv_bug\t: %s\n" "fpu\t\t: %s\n" "fpu_exception:\t: %s\n" "cpuid level\t: %d\n" "wp\t\t: %s\n" "flags\t\t: %s\n", i386_fpu_fdivbug ? "yes" : "no", i386_fpu_present ? "yes" : "no", i386_fpu_exception ? "yes" : "no", cpuid_level, (rcr0() & CR0_WP) ? "yes" : "no", featurebuf); if (l == -1) l = 0; else if (l >= left) l = left - 1; *len = (p + l) - buf; return 0; }