Annotation of sys/arch/i386/i386/procfs_machdep.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: procfs_machdep.c,v 1.6 2006/12/20 17:50:40 gwk Exp $ */
2: /* $NetBSD: procfs_machdep.c,v 1.6 2001/02/21 21:39:59 jdolecek Exp $ */
3:
4: /*
5: * Copyright (c) 2001 Wasabi Systems, Inc.
6: * All rights reserved.
7: *
8: * Written by Frank van der Linden for Wasabi Systems, Inc.
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: * 3. All advertising materials mentioning features or use of this software
19: * must display the following acknowledgement:
20: * This product includes software developed for the NetBSD Project by
21: * Wasabi Systems, Inc.
22: * 4. The name of Wasabi Systems, Inc. may not be used to endorse
23: * or promote products derived from this software without specific prior
24: * written permission.
25: *
26: * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
27: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
30: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36: * POSSIBILITY OF SUCH DAMAGE.
37: */
38:
39:
40: #include <sys/param.h>
41: #include <sys/systm.h>
42: #include <sys/mount.h>
43: #include <sys/vnode.h>
44: #include <miscfs/procfs/procfs.h>
45: #include <machine/cpu.h>
46: #include <machine/cpufunc.h>
47: #include <machine/specialreg.h>
48:
49: extern int i386_fpu_present, i386_fpu_exception, i386_fpu_fdivbug;
50:
51: static const char * const i386_features[] = {
52: "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
53: "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov",
54: "pat", "pse36", "pn", "clflush", NULL, "dts", "acpi", "mmx",
55: "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe"
56: };
57:
58:
59: /*
60: * Linux-style /proc/cpuinfo.
61: * Only used when procfs is mounted with -o linux.
62: *
63: * In the multiprocessor case, this should be a loop over all CPUs.
64: */
65: int
66: procfs_getcpuinfstr(char *buf, int *len)
67: {
68: int left, l, i;
69: char featurebuf[256], *p;
70:
71: p = featurebuf;
72: left = sizeof featurebuf;
73: for (i = 0; i < 32; i++) {
74: if ((cpu_feature & (1 << i)) && i386_features[i]) {
75: l = snprintf(p, left, "%s ", i386_features[i]);
76: if (l == -1)
77: l = 0;
78: else if (l >= left)
79: l = left - 1;
80: left -= l;
81: p += l;
82: if (left <= 0)
83: break;
84: }
85: }
86:
87: p = buf;
88: left = *len;
89: l = snprintf(p, left,
90: "processor\t: %d\n"
91: "vendor_id\t: %s\n"
92: "cpu family\t: %d\n"
93: "model\t\t: %d\n"
94: "model name\t: %s\n"
95: "stepping\t: ",
96: 0,
97: cpu_vendor,
98: cpuid_level >= 0 ? ((cpu_id >> 8) & 15) : cpu_class + 3,
99: cpuid_level >= 0 ? ((cpu_id >> 4) & 15) : 0,
100: cpu_model
101: );
102: if (l == -1)
103: l = 0;
104: else if (l >= left)
105: l = left - 1;
106:
107: left -= l;
108: p += l;
109: if (left <= 0)
110: return 0;
111:
112: if (cpuid_level >= 0)
113: l = snprintf(p, left, "%d\n", cpu_id & 15);
114: else
115: l = snprintf(p, left, "unknown\n");
116:
117: if (l == -1)
118: l = 0;
119: else if (l >= left)
120: l = left - 1;
121: left -= l;
122: p += l;
123: if (left <= 0)
124: return 0;
125:
126: #if defined(I586_CPU) || defined(I686_CPU)
127: if (cpuspeed != 0)
128: l = snprintf(p, left, "cpu MHz\t\t: %d\n",
129: cpuspeed);
130: else
131: #endif
132: l = snprintf(p, left, "cpu MHz\t\t: unknown\n");
133:
134: if (l == -1)
135: l = 0;
136: else if (l >= left)
137: l = left - 1;
138: left -= l;
139: p += l;
140: if (left <= 0)
141: return 0;
142:
143: l = snprintf(p, left,
144: "fdiv_bug\t: %s\n"
145: "fpu\t\t: %s\n"
146: "fpu_exception:\t: %s\n"
147: "cpuid level\t: %d\n"
148: "wp\t\t: %s\n"
149: "flags\t\t: %s\n",
150: i386_fpu_fdivbug ? "yes" : "no",
151: i386_fpu_present ? "yes" : "no",
152: i386_fpu_exception ? "yes" : "no",
153: cpuid_level,
154: (rcr0() & CR0_WP) ? "yes" : "no",
155: featurebuf);
156: if (l == -1)
157: l = 0;
158: else if (l >= left)
159: l = left - 1;
160:
161: *len = (p + l) - buf;
162:
163: return 0;
164: }
CVSweb
![[BACK]](/icons/back.gif){kind=icon}
Return to procfs_machdep.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / sys / arch / i386 / i386