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1 | /* |
1 | /* |
2 | * Copyright (c) 2005 Martin Decky |
2 | * Copyright (c) 2005 Martin Decky |
3 | * Copyright (c) 2006 Jakub Jermar |
3 | * Copyright (c) 2006 Jakub Jermar |
4 | * All rights reserved. |
4 | * All rights reserved. |
5 | * |
5 | * |
6 | * Redistribution and use in source and binary forms, with or without |
6 | * Redistribution and use in source and binary forms, with or without |
7 | * modification, are permitted provided that the following conditions |
7 | * modification, are permitted provided that the following conditions |
8 | * are met: |
8 | * are met: |
9 | * |
9 | * |
10 | * - Redistributions of source code must retain the above copyright |
10 | * - Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * - Redistributions in binary form must reproduce the above copyright |
12 | * - Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
14 | * documentation and/or other materials provided with the distribution. |
15 | * - The name of the author may not be used to endorse or promote products |
15 | * - The name of the author may not be used to endorse or promote products |
16 | * derived from this software without specific prior written permission. |
16 | * derived from this software without specific prior written permission. |
17 | * |
17 | * |
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
28 | */ |
28 | */ |
29 | 29 | ||
30 | /** |
30 | /** |
31 | * @file |
31 | * @file |
32 | * @brief Architecture dependent parts of OpenFirmware interface. |
32 | * @brief Architecture dependent parts of OpenFirmware interface. |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #include <ofwarch.h> |
35 | #include <ofwarch.h> |
36 | #include <ofw.h> |
36 | #include <ofw.h> |
37 | #include <printf.h> |
37 | #include <printf.h> |
38 | #include <string.h> |
38 | #include <string.h> |
39 | #include <register.h> |
39 | #include <register.h> |
40 | #include "main.h" |
40 | #include "main.h" |
41 | #include "asm.h" |
41 | #include "asm.h" |
42 | 42 | ||
43 | extern uint8_t subarchitecture; |
43 | extern uint8_t subarchitecture; |
44 | 44 | ||
45 | void write(const char *str, const int len) |
45 | void write(const char *str, const int len) |
46 | { |
46 | { |
47 | int i; |
47 | int i; |
48 | 48 | ||
49 | for (i = 0; i < len; i++) { |
49 | for (i = 0; i < len; i++) { |
50 | if (str[i] == '\n') |
50 | if (str[i] == '\n') |
51 | ofw_write("\r", 1); |
51 | ofw_write("\r", 1); |
52 | ofw_write(&str[i], 1); |
52 | ofw_write(&str[i], 1); |
53 | } |
53 | } |
54 | } |
54 | } |
55 | 55 | ||
56 | int ofw_translate_failed(ofw_arg_t flag) |
56 | int ofw_translate_failed(ofw_arg_t flag) |
57 | { |
57 | { |
58 | return flag != -1; |
58 | return flag != -1; |
59 | } |
59 | } |
60 | 60 | ||
61 | /** |
61 | /** |
62 | * Starts all CPUs represented by following siblings of the given node, |
62 | * Starts all CPUs represented by following siblings of the given node, |
63 | * except for the current CPU. |
63 | * except for the current CPU. |
64 | * |
64 | * |
65 | * @param child the first child of the OFW tree node whose children represent |
65 | * @param child the first child of the OFW tree node whose children represent |
66 | * CPUs to be woken up |
66 | * CPUs to be woken up |
67 | * @param current_mid MID of the current CPU, the current CPU will |
67 | * @param current_mid MID of the current CPU, the current CPU will |
68 | * (of course) not be woken up |
68 | * (of course) not be woken up |
69 | * @return number of CPUs which have the same parent node as "child" |
69 | * @return number of CPUs which have the same parent node as "child" |
70 | */ |
70 | */ |
71 | static int wake_cpus_in_node(phandle child, uint64_t current_mid) |
71 | static int wake_cpus_in_node(phandle child, uint64_t current_mid) |
72 | { |
72 | { |
73 | int cpus; |
73 | int cpus; |
74 | char type_name[BUF_SIZE]; |
74 | char type_name[BUF_SIZE]; |
75 | 75 | ||
76 | for (cpus = 0; child != 0 && child != -1; |
76 | for (cpus = 0; child != 0 && child != -1; |
77 | child = ofw_get_peer_node(child), cpus++) { |
77 | child = ofw_get_peer_node(child), cpus++) { |
78 | if (ofw_get_property(child, "device_type", type_name, |
78 | if (ofw_get_property(child, "device_type", type_name, |
79 | sizeof(type_name)) > 0) { |
79 | sizeof(type_name)) > 0) { |
80 | if (strcmp(type_name, "cpu") == 0) { |
80 | if (strcmp(type_name, "cpu") == 0) { |
81 | uint32_t mid; |
81 | uint32_t mid; |
82 | 82 | ||
83 | /* |
83 | /* |
84 | * "upa-portid" for US, "portid" for US-III, |
84 | * "upa-portid" for US, "portid" for US-III, |
85 | * "cpuid" for US-IV* |
85 | * "cpuid" for US-IV |
86 | */ |
86 | */ |
87 | if (ofw_get_property( |
87 | if (ofw_get_property( |
88 | child, "upa-portid", |
88 | child, "upa-portid", |
89 | &mid, sizeof(mid)) <= 0 |
89 | &mid, sizeof(mid)) <= 0 |
90 | && ofw_get_property(child, "portid", |
90 | && ofw_get_property(child, "portid", |
91 | &mid, sizeof(mid)) <= 0 |
91 | &mid, sizeof(mid)) <= 0 |
92 | && ofw_get_property(child, "cpuid", |
92 | && ofw_get_property(child, "cpuid", |
93 | &mid, sizeof(mid)) <= 0) |
93 | &mid, sizeof(mid)) <= 0) |
94 | continue; |
94 | continue; |
95 | 95 | ||
96 | if (current_mid != mid) { |
96 | if (current_mid != mid) { |
97 | /* |
97 | /* |
98 | * Start secondary processor. |
98 | * Start secondary processor. |
99 | */ |
99 | */ |
100 | (void) ofw_call("SUNW,start-cpu", 3, 1, |
100 | (void) ofw_call("SUNW,start-cpu", 3, 1, |
101 | NULL, child, KERNEL_VIRTUAL_ADDRESS, |
101 | NULL, child, KERNEL_VIRTUAL_ADDRESS, |
102 | bootinfo.physmem_start | |
102 | bootinfo.physmem_start | |
103 | AP_PROCESSOR); |
103 | AP_PROCESSOR); |
104 | } |
104 | } |
105 | } |
105 | } |
106 | } |
106 | } |
107 | } |
107 | } |
108 | 108 | ||
109 | return cpus; |
109 | return cpus; |
110 | } |
110 | } |
111 | 111 | ||
112 | /** |
112 | /** |
113 | * Finds out the current CPU's MID and wakes up all AP processors. |
113 | * Finds out the current CPU's MID and wakes up all AP processors. |
114 | */ |
114 | */ |
115 | int ofw_cpu(void) |
115 | int ofw_cpu(void) |
116 | { |
116 | { |
117 | int cpus; |
117 | int cpus; |
118 | phandle node; |
118 | phandle node; |
119 | phandle subnode; |
119 | phandle subnode; |
120 | phandle cpus_parent; |
120 | phandle cpus_parent; |
121 | phandle cmp; |
121 | phandle cmp; |
122 | char name[BUF_SIZE]; |
122 | char name[BUF_SIZE]; |
123 | 123 | ||
124 | /* get the current CPU MID */ |
124 | /* get the current CPU MID */ |
125 | uint64_t current_mid; |
125 | uint64_t current_mid; |
126 | 126 | ||
127 | asm volatile ("ldxa [%1] %2, %0\n" |
127 | asm volatile ("ldxa [%1] %2, %0\n" |
128 | : "=r" (current_mid) |
128 | : "=r" (current_mid) |
129 | : "r" (0), "i" (ASI_ICBUS_CONFIG)); |
129 | : "r" (0), "i" (ASI_ICBUS_CONFIG)); |
130 | current_mid >>= ICBUS_CONFIG_MID_SHIFT; |
130 | current_mid >>= ICBUS_CONFIG_MID_SHIFT; |
131 | 131 | ||
132 | if (subarchitecture == SUBARCH_US) { |
132 | if (subarchitecture == SUBARCH_US) { |
133 | current_mid &= ICBUS_CONFIG_MID_MASK_US; |
133 | current_mid &= ICBUS_CONFIG_MID_MASK_US; |
134 | } else if (subarchitecture == SUBARCH_US3) { |
134 | } else if (subarchitecture == SUBARCH_US3) { |
135 | current_mid &= ICBUS_CONFIG_MID_MASK_US3; |
135 | current_mid &= ICBUS_CONFIG_MID_MASK_US3; |
136 | } else { |
136 | } else { |
137 | printf("MID format unknown for this subarchitecture."); |
137 | printf("MID format unknown for this subarchitecture."); |
138 | return 0; |
138 | return 0; |
139 | } |
139 | } |
140 | 140 | ||
141 | /* wake up CPUs */ |
141 | /* wake up CPUs */ |
142 | 142 | ||
143 | cpus_parent = ofw_find_device("/ssm@0,0"); |
143 | cpus_parent = ofw_find_device("/ssm@0,0"); |
144 | if (cpus_parent == 0 || cpus_parent == -1) { |
144 | if (cpus_parent == 0 || cpus_parent == -1) { |
145 | cpus_parent = ofw_find_device("/"); |
145 | cpus_parent = ofw_find_device("/"); |
146 | } |
146 | } |
147 | 147 | ||
148 | node = ofw_get_child_node(cpus_parent); |
148 | node = ofw_get_child_node(cpus_parent); |
149 | cpus = wake_cpus_in_node(node, current_mid); |
149 | cpus = wake_cpus_in_node(node, current_mid); |
150 | while (node != 0 && node != -1) { |
150 | while (node != 0 && node != -1) { |
151 | if (ofw_get_property(node, "name", name, |
151 | if (ofw_get_property(node, "name", name, |
152 | sizeof(name)) > 0) { |
152 | sizeof(name)) > 0) { |
153 | if (strcmp(name, "cmp") == 0) { |
153 | if (strcmp(name, "cmp") == 0) { |
154 | subnode = ofw_get_child_node(node); |
154 | subnode = ofw_get_child_node(node); |
155 | cpus += wake_cpus_in_node(subnode, |
155 | cpus += wake_cpus_in_node(subnode, |
156 | current_mid); |
156 | current_mid); |
157 | } |
157 | } |
158 | } |
158 | } |
159 | node = ofw_get_peer_node(node); |
159 | node = ofw_get_peer_node(node); |
160 | } |
160 | } |
161 | 161 | ||
162 | return cpus; |
162 | return cpus; |
163 | 163 | ||
164 | } |
164 | } |
165 | 165 | ||
166 | /** Get physical memory starting address. |
166 | /** Get physical memory starting address. |
167 | * |
167 | * |
168 | * @param start Pointer to variable where the physical memory starting |
168 | * @param start Pointer to variable where the physical memory starting |
169 | * address will be stored. |
169 | * address will be stored. |
170 | * |
170 | * |
171 | * @return Non-zero on succes, zero on failure. |
171 | * @return Non-zero on succes, zero on failure. |
172 | */ |
172 | */ |
173 | int ofw_get_physmem_start(uintptr_t *start) |
173 | int ofw_get_physmem_start(uintptr_t *start) |
174 | { |
174 | { |
175 | uint32_t memreg[4]; |
175 | uint32_t memreg[4]; |
176 | 176 | ||
177 | if (ofw_get_property(ofw_memory, "reg", &memreg, sizeof(memreg)) <= 0) |
177 | if (ofw_get_property(ofw_memory, "reg", &memreg, sizeof(memreg)) <= 0) |
178 | return 0; |
178 | return 0; |
179 | 179 | ||
180 | *start = (((uint64_t) memreg[0]) << 32) | memreg[1]; |
180 | *start = (((uint64_t) memreg[0]) << 32) | memreg[1]; |
181 | return 1; |
181 | return 1; |
182 | } |
182 | } |
183 | 183 | ||
184 | 184 |