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 2007 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #pragma ident "%Z%%M% %I% %E% SMI"
27
28 #include <sys/types.h>
29 #include <sys/bootconf.h>
30 #include <sys/param.h>
31 #include <sys/obpdefs.h>
32 #include <sys/promif.h>
33 #include <sys/salib.h>
34 #include <sys/boot.h>
35 #include <stddef.h>
36 #include "boot_plat.h"
37
38 #ifdef DEBUG
39 extern int debug;
40 #else
41 static const int debug = 0;
42 #endif
43
44 #define dprintf if (debug) printf
45
46 extern void closeall(int);
47
48 struct bootops bootops;
49
50 static void
boot_fail(void)51 boot_fail(void)
52 {
53 prom_panic("bootops is gone, it should not be called");
54 }
55
56 void
setup_bootops(void)57 setup_bootops(void)
58 {
59 bootops.bsys_version = BO_VERSION;
60 bootops.bsys_1275_call = (uint64_t)boot_fail;
61 bootops.bsys_printf = (uint32_t)boot_fail;
62
63 if (!memlistpage) /* paranoia runs rampant */
64 prom_panic("\nMemlistpage not setup yet.");
65 /*
66 * The memory list should always be updated last. The prom
67 * calls which are made to update a memory list may have the
68 * undesirable affect of claiming physical memory. This may
69 * happen after the kernel has created its page free list.
70 * The kernel deals with this by comparing the n and n-1
71 * snapshots of memory. Updating the memory available list
72 * last guarantees we will have a current, accurate snapshot.
73 * See bug #1260786.
74 */
75 update_memlist("virtual-memory", "available", &vfreelistp);
76 update_memlist("memory", "available", &pfreelistp);
77
78 dprintf("\nPhysinstalled: ");
79 if (debug) print_memlist(pinstalledp);
80 dprintf("\nPhysfree: ");
81 if (debug) print_memlist(pfreelistp);
82 dprintf("\nVirtfree: ");
83 if (debug) print_memlist(vfreelistp);
84 }
85
86 void
install_memlistptrs(void)87 install_memlistptrs(void)
88 {
89
90 /* prob only need 1 page for now */
91 memlistextent = tablep - memlistpage;
92
93 dprintf("physinstalled = %p\n", (void *)pinstalledp);
94 dprintf("physavail = %p\n", (void *)pfreelistp);
95 dprintf("virtavail = %p\n", (void *)vfreelistp);
96 dprintf("extent = 0x%lx\n", memlistextent);
97 }
98
99 /*
100 * A word of explanation is in order.
101 * This routine is meant to be called during
102 * boot_release(), when the kernel is trying
103 * to ascertain the current state of memory
104 * so that it can use a memlist to walk itself
105 * thru kvm_init().
106 */
107
108 void
update_memlist(char * name,char * prop,struct memlist ** list)109 update_memlist(char *name, char *prop, struct memlist **list)
110 {
111 /* Just take another prom snapshot */
112 *list = fill_memlists(name, prop, *list);
113 install_memlistptrs();
114 }
115
116 /*
117 * This routine is meant to be called by the
118 * kernel to shut down all boot and prom activity.
119 * After this routine is called, PROM or boot IO is no
120 * longer possible, nor is memory allocation.
121 */
122 void
kern_killboot(void)123 kern_killboot(void)
124 {
125 if (verbosemode) {
126 dprintf("Entering boot_release()\n");
127 dprintf("\nPhysinstalled: ");
128 if (debug) print_memlist(pinstalledp);
129 dprintf("\nPhysfree: ");
130 if (debug) print_memlist(pfreelistp);
131 dprintf("\nVirtfree: ");
132 if (debug) print_memlist(vfreelistp);
133 }
134 if (debug) {
135 dprintf("Calling quiesce_io()\n");
136 prom_enter_mon();
137 }
138
139 /* close all open devices */
140 closeall(1);
141
142 /*
143 * Now we take YAPS (yet another Prom snapshot) of
144 * memory, just for safety sake.
145 *
146 * The memory list should always be updated last. The prom
147 * calls which are made to update a memory list may have the
148 * undesirable affect of claiming physical memory. This may
149 * happen after the kernel has created its page free list.
150 * The kernel deals with this by comparing the n and n-1
151 * snapshots of memory. Updating the memory available list
152 * last guarantees we will have a current, accurate snapshot.
153 * See bug #1260786.
154 */
155 update_memlist("virtual-memory", "available", &vfreelistp);
156 update_memlist("memory", "available", &pfreelistp);
157
158 if (verbosemode) {
159 dprintf("physinstalled = %p\n", (void *)pinstalledp);
160 dprintf("physavail = %p\n", (void *)pfreelistp);
161 dprintf("virtavail = %p\n", (void *)vfreelistp);
162 dprintf("extent = 0x%lx\n", memlistextent);
163 dprintf("Leaving boot_release()\n");
164
165 dprintf("Physinstalled: \n");
166 if (debug)
167 print_memlist(pinstalledp);
168
169 dprintf("Physfree:\n");
170 if (debug)
171 print_memlist(pfreelistp);
172
173 dprintf("Virtfree: \n");
174 if (debug)
175 print_memlist(vfreelistp);
176 }
177
178 #ifdef DEBUG_MMU
179 dump_mmu();
180 prom_enter_mon();
181 #endif
182 }
183