/* $NetBSD: procfs_machdep.c,v 1.11 2008/06/11 21:47:46 njoly Exp $ */ /* * Copyright (c) 2001 Wasabi Systems, Inc. * All rights reserved. * * Written by Frank van der Linden and Jason R. Thorpe 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. */ /* * NOTE: We simply use the primary CPU's cpuid_level and tsc_freq * here. Might want to change this later. */ #include <sys/cdefs.h> __KERNEL_RCSID(0, "$NetBSD: procfs_machdep.c,v 1.11 2008/06/11 21:47:46 njoly Exp $"); #include <sys/param.h> #include <sys/systm.h> #include <sys/mount.h> #include <sys/stat.h> #include <sys/vnode.h> #include <miscfs/procfs/procfs.h> #include <machine/cpu.h> #include <machine/reg.h> #include <machine/specialreg.h> extern int i386_fpu_present, i386_fpu_exception, i386_fpu_fdivbug; extern char cpu_model[]; extern int cpu_class; static const char * const i386_features[] = { /* Intel-defined */ "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", NULL, /* AMD-defined */ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "nx", NULL, "mmxext", NULL, NULL, "fxsr_opt", "rdtscp", NULL, NULL, "lm", "3dnowext", "3dnow", /* Transmeta-defined */ "recovery", "longrun", NULL, "lrti", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* Linux-defined */ "cxmmx", NULL, "cyrix_arr", "centaur_mcr", NULL, "constant_tsc", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* Intel-defined */ "pni", NULL, NULL, "monitor", "ds_cpi", "vmx", NULL, "est", "tm2", NULL, "cid", NULL, NULL, "cx16", "xtpr", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* VIA/Cyrix/Centaur-defined */ NULL, NULL, "rng", "rng_en", NULL, NULL, "ace", "ace_en", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* AMD defined */ "lahf_lm", "cmp_legacy", "svm", NULL, "cr8_legacy", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, }; static int procfs_getonecpu(int, struct cpu_info *, char *, int *); /* * 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 *bf, int *len) { struct cpu_info *ci; CPU_INFO_ITERATOR cii; int i = 0, used = *len, total = *len; *len = 0; for (CPU_INFO_FOREACH(cii, ci)) { if (procfs_getonecpu(i++, ci, bf, &used) == 0) { *len += used; total = 0; break; } total -= used; if (total > 0) { bf += used; *bf++ = '\n'; *len += used + 1; used = --total; if (used == 0) break; } else { *len += used; break; } } return total == 0 ? -1 : 0; } static int procfs_getonecpu(int xcpu, struct cpu_info *ci, char *bf, int *len) { int left, l, i; char featurebuf[256], *p; p = featurebuf; left = sizeof featurebuf; for (i = 0; i < sizeof(i386_features)/sizeof(*i386_features); i++) { if ((ci->ci_feature_flags & (1 << i)) && (i386_features[i] != NULL)) { l = snprintf(p, left, "%s ", i386_features[i]); left -= l; p += l; if (left <= 0) break; } } p = bf; 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: ", xcpu, (char *)ci->ci_vendor, cpuid_level >= 0 ? ((ci->ci_signature >> 8) & 15) : cpu_class + 3, cpuid_level >= 0 ? ((ci->ci_signature >> 4) & 15) : 0, cpu_brand_string ); left -= l; p += l; if (left <= 0) return 0; if (cpuid_level >= 0) l = snprintf(p, left, "%d\n", ci->ci_signature & 15); else l = snprintf(p, left, "unknown\n"); left -= l; p += l; if (left <= 0) return 0; if (ci->ci_data.cpu_cc_freq != 0) { uint64_t freq, fraq; freq = (ci->ci_data.cpu_cc_freq + 4999) / 1000000; fraq = ((ci->ci_data.cpu_cc_freq + 4999) / 10000) % 100; l = snprintf(p, left, "cpu MHz\t\t: %ld.%ld\n", freq, fraq); } else l = snprintf(p, left, "cpu MHz\t\t: unknown\n"); 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", "no", /* XXX */ "yes", /* XXX */ "yes", /* XXX */ cpuid_level, (rcr0() & CR0_WP) ? "yes" : "no", featurebuf); if (l > left) return 0; *len = (p + l) - bf; return 1; }