xref: /illumos-gate/usr/src/lib/libprtdiag/common/cpu.c (revision 6fb59094dc99ac1cd1612ee8378be81717e7dfc9)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #include <stdio.h>
27 #include <stdlib.h>
28 #include <unistd.h>
29 #include <ctype.h>
30 #include <string.h>
31 #include <kvm.h>
32 #include <varargs.h>
33 #include <errno.h>
34 #include <time.h>
35 #include <dirent.h>
36 #include <fcntl.h>
37 #include <sys/param.h>
38 #include <sys/stat.h>
39 #include <sys/types.h>
40 #include <sys/utsname.h>
41 #include <sys/openpromio.h>
42 #include <sys/spitregs.h>
43 #include <sys/cheetahregs.h>
44 #include <kstat.h>
45 #include <libintl.h>
46 #include <syslog.h>
47 #include <sys/dkio.h>
48 #include "pdevinfo.h"
49 #include "display.h"
50 #include "pdevinfo_sun4u.h"
51 #include "display_sun4u.h"
52 #include "libprtdiag.h"
53 
54 /*
55  * Return the operating frequency of a processor in Hertz. This function
56  * requires as input a legal prom node pointer. If a NULL
57  * is passed in or the clock-frequency property does not exist, the
58  * function returns 0.
59  */
60 uint_t
get_cpu_freq(Prom_node * pnode)61 get_cpu_freq(Prom_node *pnode)
62 {
63 	Prop *prop;
64 	uint_t *value;
65 
66 	/* find the property */
67 	if ((prop = find_prop(pnode, "clock-frequency")) == NULL) {
68 		return (0);
69 	}
70 
71 	if ((value = (uint_t *)get_prop_val(prop)) == NULL) {
72 		return (0);
73 	}
74 
75 	return (*value);
76 }
77 
78 /*
79  * returns the size of the given processors external cache in
80  * bytes. If the properties required to determine this are not
81  * present, then the function returns 0.
82  */
83 int
get_ecache_size(Prom_node * node)84 get_ecache_size(Prom_node *node)
85 {
86 	int *cache_size_p;	/* pointer to number of cache lines */
87 
88 	/* find the properties */
89 	if (cache_size_p = (int *)get_prop_val(find_prop(node,
90 	    "ecache-size"))) {
91 		return (*cache_size_p);
92 	}
93 	if (cache_size_p = (int *)get_prop_val(find_prop(node,
94 	    "l3-cache-size"))) {
95 		return (*cache_size_p);
96 	}
97 	if (cache_size_p = (int *)get_prop_val(find_prop(node,
98 	    "l2-cache-size"))) {
99 		return (*cache_size_p);
100 	}
101 
102 	return (0);
103 }
104 
105 
106 /*
107  * This routine is the generic link into displaying CPU and memory info.
108  * It displays the table header, then calls the CPU and memory display
109  * routine for all boards.
110  */
111 void
display_cpu_devices(Sys_tree * tree)112 display_cpu_devices(Sys_tree *tree)
113 {
114 	Board_node *bnode;
115 
116 	/*
117 	 * Display the table header for CPUs . Then display the CPU
118 	 * frequency, cache size, and processor revision of all cpus.
119 	 */
120 	log_printf("\n", 0);
121 	log_printf("=========================", 0);
122 	log_printf(" CPUs ", 0);
123 	log_printf("=========================", 0);
124 	log_printf("\n", 0);
125 	log_printf("\n", 0);
126 	log_printf("                    Run   Ecache  "
127 	    " CPU    CPU\n", 0);
128 	log_printf("Brd  CPU   Module   MHz     MB    "
129 	    "Impl.   Mask\n", 0);
130 	log_printf("---  ---  -------  -----  ------  "
131 	    "------  ----\n", 0);
132 
133 	/* Now display all of the cpus on each board */
134 	for (bnode = tree->bd_list; bnode != NULL; bnode = bnode->next)
135 		display_cpus(bnode);
136 
137 	log_printf("\n", 0);
138 }
139 
140 /*
141  * Display the CPUs present on this board.
142  */
143 void
display_cpus(Board_node * board)144 display_cpus(Board_node *board)
145 {
146 	Prom_node *cpu;
147 
148 	/*
149 	 * display the CPUs' operating frequency, cache size, impl. field
150 	 * and mask revision.
151 	 */
152 	for (cpu = dev_find_type(board->nodes, "cpu"); cpu != NULL;
153 	    cpu = dev_next_type(cpu, "cpu")) {
154 		uint_t freq;	 /* CPU clock frequency */
155 		int ecache_size; /* External cache size */
156 		int *mid;
157 		int *impl;
158 		int *mask, decoded_mask;
159 
160 		mid = (int *)get_prop_val(find_prop(cpu, "upa-portid"));
161 		if (mid == NULL) {
162 			mid = (int *)get_prop_val(find_prop(cpu, "portid"));
163 		}
164 
165 		freq = (get_cpu_freq(cpu) + 500000) / 1000000;
166 		ecache_size = get_ecache_size(cpu);
167 		impl = (int *)get_prop_val(find_prop(cpu, "implementation#"));
168 		mask = (int *)get_prop_val(find_prop(cpu, "mask#"));
169 
170 		/* Do not display a failed CPU node */
171 		if ((freq != 0) && (node_failed(cpu) == 0)) {
172 			/* Board number */
173 			display_boardnum(board->board_num);
174 
175 			/* CPU MID */
176 			log_printf(" %2d  ", *mid, 0);
177 
178 			/* Module number */
179 			display_mid(*mid);
180 
181 			/* Running frequency */
182 			log_printf(" %3u   ", freq, 0);
183 
184 			/* Ecache size */
185 			if (ecache_size == 0)
186 				log_printf(" %3s    ", "N/A", 0);
187 			else
188 				log_printf(" %4.1f   ",
189 				    (float)ecache_size / (float)(1<<20),
190 				    0);
191 
192 			/* Implementation */
193 			if (impl == NULL) {
194 				log_printf("%6s  ", "N/A", 0);
195 			} else {
196 				switch (*impl) {
197 				case SPITFIRE_IMPL:
198 					log_printf("%-6s  ", "US-I", 0);
199 					break;
200 				case BLACKBIRD_IMPL:
201 					log_printf("%-6s  ", "US-II", 0);
202 					break;
203 				case CHEETAH_IMPL:
204 					log_printf("%-6s  ", "US-III", 0);
205 					break;
206 				case CHEETAH_PLUS_IMPL:
207 					log_printf("%-7s  ", "US-III+", 0);
208 					break;
209 				case JAGUAR_IMPL:
210 					log_printf("%-6s  ", "US-IV", 0);
211 					break;
212 				default:
213 					log_printf("%-6x  ", *impl, 0);
214 					break;
215 				}
216 			}
217 
218 			/* CPU Mask */
219 			if (mask == NULL) {
220 				log_printf(" %3s", "N/A", 0);
221 			} else {
222 				if ((impl) && IS_CHEETAH(*impl))
223 					decoded_mask =
224 					    REMAP_CHEETAH_MASK(*mask);
225 				else
226 					decoded_mask = *mask;
227 
228 				log_printf(" %d.%d", (decoded_mask >> 4) & 0xf,
229 				    decoded_mask & 0xf, 0);
230 			}
231 
232 			log_printf("\n", 0);
233 		}
234 	}
235 }
236 
237 void
display_mid(int mid)238 display_mid(int mid)
239 {
240 	log_printf("  %2d     ", mid, 0);
241 }
242