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11630 remove checks for 64-bit capable hardware
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--- old/usr/src/psm/stand/boot/sparc/common/machdep.c
+++ new/usr/src/psm/stand/boot/sparc/common/machdep.c
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21 /*
22 22 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
23 23 * Use is subject to license terms.
24 24 */
25 25 /*
26 26 * Copyright 2019 Peter Tribble.
27 27 */
28 28
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29 29 #include <sys/types.h>
30 30 #include <sys/param.h>
31 31 #include <sys/fcntl.h>
32 32 #include <sys/promif.h>
33 33 #include <sys/prom_plat.h>
34 34 #include <sys/salib.h>
35 35
36 36 extern int is_sun4v;
37 37
38 38 /*
39 - * Check if the CPU should default to 64-bit or not.
40 - * UltraSPARC-1's default to 32-bit mode.
41 - * Everything else defaults to 64-bit mode.
42 - */
43 -
44 -/*
45 - * Manufacturer codes for the CPUs we're interested in
46 - */
47 -#define TI_JEDEC 0x17
48 -#define SUNW_JEDEC 0x22
49 -
50 -/*
51 - * Implementation codes for the CPUs we're interested in
52 - */
53 -#define IMPL_US_I 0x10
54 -
55 -static pnode_t
56 -visit(pnode_t node)
57 -{
58 - int impl, manu;
59 - char name[32];
60 - static char ultrasparc[] = "SUNW,UltraSPARC";
61 - static char implementation[] = "implementation#";
62 - static char manufacturer[] = "manufacturer#";
63 -
64 - /*
65 - * if name isn't 'SUNW,UltraSPARC', continue.
66 - */
67 - if (prom_getproplen(node, "name") != sizeof (ultrasparc))
68 - return ((pnode_t)0);
69 - (void) prom_getprop(node, "name", name);
70 - if (strncmp(name, ultrasparc, sizeof (ultrasparc)) != 0)
71 - return ((pnode_t)0);
72 -
73 - if (prom_getproplen(node, manufacturer) != sizeof (int))
74 - return ((pnode_t)0);
75 - (void) prom_getprop(node, manufacturer, (caddr_t)&manu);
76 -
77 - if ((manu != SUNW_JEDEC) && (manu != TI_JEDEC))
78 - return ((pnode_t)0);
79 -
80 - if (prom_getproplen(node, implementation) != sizeof (int))
81 - return ((pnode_t)0);
82 - (void) prom_getprop(node, implementation, (caddr_t)&impl);
83 -
84 - if (impl != IMPL_US_I)
85 - return ((pnode_t)0);
86 -
87 - return (node);
88 -}
89 -
90 -/*
91 - * visit each node in the device tree, until we get a non-null answer
92 - */
93 -static pnode_t
94 -walk(pnode_t node)
95 -{
96 - pnode_t id;
97 -
98 - if (visit(node))
99 - return (node);
100 -
101 - for (node = prom_childnode(node); node; node = prom_nextnode(node))
102 - if ((id = walk(node)) != (pnode_t)0)
103 - return (id);
104 -
105 - return ((pnode_t)0);
106 -}
107 -
108 -/*
109 - * Check if the CPU is an UltraSPARC-1 or not.
110 - */
111 -int
112 -cpu_is_ultrasparc_1(void)
113 -{
114 - static int cpu_checked;
115 - static int cpu_default;
116 -
117 - /*
118 - * If we already checked or the machine is
119 - * a sun4v, we already know the answer.
120 - */
121 - if (!is_sun4v || cpu_checked == 0) {
122 - if (walk(prom_rootnode()))
123 - cpu_default = 1;
124 - cpu_checked = 1;
125 - }
126 -
127 - return (cpu_default);
128 -}
129 -
130 -/*
131 39 * Retain a page or reclaim a previously retained page of physical
132 40 * memory for use by the prom upgrade. If successful, leave
133 41 * an indication that a page was retained by creating a boolean
134 42 * property in the root node.
135 43 *
136 44 * XXX: SUNW,retain doesn't work as expected on server systems,
137 45 * so we don't try to retain any memory on those systems.
138 46 *
139 47 * XXX: do a '0 to my-self' as a workaround for 4160914
140 48 */
141 49
142 50 int dont_retain_memory;
143 51
144 52 void
145 53 retain_nvram_page(void)
146 54 {
147 55 unsigned long long phys = 0;
148 56 int len;
149 57 char name[32];
150 58 static char create_prop[] =
151 59 "0 to my-self dev / 0 0 \" boot-retained-page\" property";
152 60 static char ue[] = "SUNW,Ultra-Enterprise";
153 61 extern int verbosemode;
154 62
155 63 if (dont_retain_memory)
156 64 return;
157 65
158 66 if (!is_sun4v) {
159 67 len = prom_getproplen(prom_rootnode(), "name");
160 68 if ((len != -1) && (len <= sizeof (name))) {
161 69 (void) prom_getprop(prom_rootnode(), "name", name);
162 70 if (strcmp(name, ue) == 0)
163 71 return;
164 72 }
165 73 }
166 74
167 75 if (prom_retain("OBPnvram", PAGESIZE, PAGESIZE, &phys) != 0) {
168 76 printf("prom_retain failed\n");
169 77 return;
170 78 }
171 79 if (verbosemode)
172 80 printf("retained OBPnvram page at 0x%llx\n", phys);
173 81
174 82 prom_interpret(create_prop, 0, 0, 0, 0, 0);
175 83 }
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