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1 | /* |
1 | /* |
2 | * Copyright (C) 2001-2005 Jakub Jermar |
2 | * Copyright (C) 2001-2005 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | #ifdef __SMP__ |
29 | #ifdef __SMP__ |
30 | 30 | ||
31 | #include <arch/pm.h> |
- | |
32 | #include <config.h> |
31 | #include <config.h> |
33 | #include <print.h> |
32 | #include <print.h> |
34 | #include <panic.h> |
33 | #include <debug.h> |
35 | #include <arch/smp/mps.h> |
34 | #include <arch/smp/mps.h> |
36 | #include <arch/smp/ap.h> |
- | |
37 | #include <arch/smp/apic.h> |
35 | #include <arch/smp/apic.h> |
- | 36 | #include <arch/smp/smp.h> |
|
38 | #include <func.h> |
37 | #include <func.h> |
39 | #include <arch/types.h> |
38 | #include <arch/types.h> |
40 | #include <typedefs.h> |
39 | #include <typedefs.h> |
41 | #include <synch/waitq.h> |
- | |
42 | #include <time/delay.h> |
- | |
43 | #include <mm/heap.h> |
- | |
44 | #include <mm/page.h> |
40 | #include <mm/page.h> |
45 | #include <mm/frame.h> |
- | |
46 | #include <cpu.h> |
41 | #include <cpu.h> |
47 | #include <arch/i8259.h> |
- | |
48 | #include <arch/asm.h> |
42 | #include <arch/asm.h> |
49 | #include <arch/bios/bios.h> |
43 | #include <arch/bios/bios.h> |
50 | #include <arch/acpi/madt.h> |
- | |
51 | 44 | ||
52 | /* |
45 | /* |
53 | * MultiProcessor Specification detection code. |
46 | * MultiProcessor Specification detection code. |
54 | */ |
47 | */ |
55 | 48 | ||
56 | #define FS_SIGNATURE 0x5f504d5f |
49 | #define FS_SIGNATURE 0x5f504d5f |
57 | #define CT_SIGNATURE 0x504d4350 |
50 | #define CT_SIGNATURE 0x504d4350 |
58 | 51 | ||
59 | int mps_fs_check(__u8 *base); |
52 | int mps_fs_check(__u8 *base); |
60 | int mps_ct_check(void); |
53 | int mps_ct_check(void); |
61 | 54 | ||
62 | int configure_via_ct(void); |
55 | int configure_via_ct(void); |
63 | int configure_via_default(__u8 n); |
56 | int configure_via_default(__u8 n); |
64 | 57 | ||
65 | int ct_processor_entry(struct __processor_entry *pr); |
58 | int ct_processor_entry(struct __processor_entry *pr); |
66 | void ct_bus_entry(struct __bus_entry *bus); |
59 | void ct_bus_entry(struct __bus_entry *bus); |
67 | void ct_io_apic_entry(struct __io_apic_entry *ioa); |
60 | void ct_io_apic_entry(struct __io_apic_entry *ioa); |
68 | void ct_io_intr_entry(struct __io_intr_entry *iointr); |
61 | void ct_io_intr_entry(struct __io_intr_entry *iointr); |
69 | void ct_l_intr_entry(struct __l_intr_entry *lintr); |
62 | void ct_l_intr_entry(struct __l_intr_entry *lintr); |
70 | 63 | ||
71 | void ct_extended_entries(void); |
64 | void ct_extended_entries(void); |
72 | 65 | ||
73 | static struct mps_fs *fs; |
66 | static struct mps_fs *fs; |
74 | static struct mps_ct *ct; |
67 | static struct mps_ct *ct; |
75 | 68 | ||
76 | struct __processor_entry *processor_entries = NULL; |
69 | struct __processor_entry *processor_entries = NULL; |
77 | struct __bus_entry *bus_entries = NULL; |
70 | struct __bus_entry *bus_entries = NULL; |
78 | struct __io_apic_entry *io_apic_entries = NULL; |
71 | struct __io_apic_entry *io_apic_entries = NULL; |
79 | struct __io_intr_entry *io_intr_entries = NULL; |
72 | struct __io_intr_entry *io_intr_entries = NULL; |
80 | struct __l_intr_entry *l_intr_entries = NULL; |
73 | struct __l_intr_entry *l_intr_entries = NULL; |
81 | 74 | ||
82 | int processor_entry_cnt = 0; |
75 | int processor_entry_cnt = 0; |
83 | int bus_entry_cnt = 0; |
76 | int bus_entry_cnt = 0; |
84 | int io_apic_entry_cnt = 0; |
77 | int io_apic_entry_cnt = 0; |
85 | int io_intr_entry_cnt = 0; |
78 | int io_intr_entry_cnt = 0; |
86 | int l_intr_entry_cnt = 0; |
79 | int l_intr_entry_cnt = 0; |
87 | 80 | ||
88 | waitq_t ap_completion_wq; |
81 | waitq_t ap_completion_wq; |
89 | waitq_t kmp_completion_wq; |
82 | waitq_t kmp_completion_wq; |
90 | 83 | ||
- | 84 | ||
- | 85 | /* |
|
- | 86 | * Implementation of IA-32 SMP configuration interface. |
|
- | 87 | */ |
|
- | 88 | static count_t get_cpu_count(void); |
|
- | 89 | static bool is_cpu_enabled(index_t i); |
|
- | 90 | static bool is_bsp(index_t i); |
|
- | 91 | static __u8 get_cpu_apic_id(index_t i); |
|
- | 92 | ||
- | 93 | struct smp_config_operations mps_config_operations = { |
|
- | 94 | .cpu_count = get_cpu_count, |
|
- | 95 | .cpu_enabled = is_cpu_enabled, |
|
- | 96 | .cpu_bootstrap = is_bsp, |
|
- | 97 | .cpu_apic_id = get_cpu_apic_id |
|
- | 98 | }; |
|
- | 99 | ||
- | 100 | count_t get_cpu_count(void) |
|
- | 101 | { |
|
- | 102 | return processor_entry_cnt; |
|
- | 103 | } |
|
- | 104 | ||
- | 105 | bool is_cpu_enabled(index_t i) |
|
- | 106 | { |
|
- | 107 | ASSERT(i < processor_entry_cnt); |
|
- | 108 | return processor_entries[i].cpu_flags & 0x1; |
|
- | 109 | } |
|
- | 110 | ||
- | 111 | bool is_bsp(index_t i) |
|
- | 112 | { |
|
- | 113 | ASSERT(i < processor_entry_cnt); |
|
- | 114 | return processor_entries[i].cpu_flags & 0x2; |
|
- | 115 | } |
|
- | 116 | ||
- | 117 | __u8 get_cpu_apic_id(index_t i) |
|
- | 118 | { |
|
- | 119 | ASSERT(i < processor_entry_cnt); |
|
- | 120 | return processor_entries[i].l_apic_id; |
|
- | 121 | } |
|
- | 122 | ||
- | 123 | ||
91 | /* |
124 | /* |
92 | * Used to check the integrity of the MP Floating Structure. |
125 | * Used to check the integrity of the MP Floating Structure. |
93 | */ |
126 | */ |
94 | int mps_fs_check(__u8 *base) |
127 | int mps_fs_check(__u8 *base) |
95 | { |
128 | { |
96 | int i; |
129 | int i; |
97 | __u8 sum; |
130 | __u8 sum; |
98 | 131 | ||
99 | for (i = 0, sum = 0; i < 16; i++) |
132 | for (i = 0, sum = 0; i < 16; i++) |
100 | sum += base[i]; |
133 | sum += base[i]; |
101 | 134 | ||
102 | return !sum; |
135 | return !sum; |
103 | } |
136 | } |
104 | 137 | ||
105 | /* |
138 | /* |
106 | * Used to check the integrity of the MP Configuration Table. |
139 | * Used to check the integrity of the MP Configuration Table. |
107 | */ |
140 | */ |
108 | int mps_ct_check(void) |
141 | int mps_ct_check(void) |
109 | { |
142 | { |
110 | __u8 *base = (__u8 *) ct; |
143 | __u8 *base = (__u8 *) ct; |
111 | __u8 *ext = base + ct->base_table_length; |
144 | __u8 *ext = base + ct->base_table_length; |
112 | __u8 sum; |
145 | __u8 sum; |
113 | int i; |
146 | int i; |
114 | 147 | ||
115 | /* count the checksum for the base table */ |
148 | /* count the checksum for the base table */ |
116 | for (i=0,sum=0; i < ct->base_table_length; i++) |
149 | for (i=0,sum=0; i < ct->base_table_length; i++) |
117 | sum += base[i]; |
150 | sum += base[i]; |
118 | 151 | ||
119 | if (sum) |
152 | if (sum) |
120 | return 0; |
153 | return 0; |
121 | 154 | ||
122 | /* count the checksum for the extended table */ |
155 | /* count the checksum for the extended table */ |
123 | for (i=0,sum=0; i < ct->ext_table_length; i++) |
156 | for (i=0,sum=0; i < ct->ext_table_length; i++) |
124 | sum += ext[i]; |
157 | sum += ext[i]; |
125 | 158 | ||
126 | return sum == ct->ext_table_checksum; |
159 | return sum == ct->ext_table_checksum; |
127 | } |
160 | } |
128 | 161 | ||
129 | void mps_init(void) |
162 | void mps_init(void) |
130 | { |
163 | { |
131 | __u8 *addr[2] = { NULL, (__u8 *) 0xf0000 }; |
164 | __u8 *addr[2] = { NULL, (__u8 *) 0xf0000 }; |
132 | int i, j, length[2] = { 1024, 64*1024 }; |
165 | int i, j, length[2] = { 1024, 64*1024 }; |
133 | 166 | ||
134 | 167 | ||
135 | /* |
168 | /* |
136 | * Find MP Floating Pointer Structure |
169 | * Find MP Floating Pointer Structure |
137 | * 1a. search first 1K of EBDA |
170 | * 1a. search first 1K of EBDA |
138 | * 1b. if EBDA is undefined, search last 1K of base memory |
171 | * 1b. if EBDA is undefined, search last 1K of base memory |
139 | * 2. search 64K starting at 0xf0000 |
172 | * 2. search 64K starting at 0xf0000 |
140 | */ |
173 | */ |
141 | 174 | ||
142 | addr[0] = (__u8 *) (ebda ? ebda : 639 * 1024); |
175 | addr[0] = (__u8 *) (ebda ? ebda : 639 * 1024); |
143 | for (i = 0; i < 2; i++) { |
176 | for (i = 0; i < 2; i++) { |
144 | for (j = 0; j < length[i]; j += 16) { |
177 | for (j = 0; j < length[i]; j += 16) { |
145 | if (*((__u32 *) &addr[i][j]) == FS_SIGNATURE && mps_fs_check(&addr[i][j])) { |
178 | if (*((__u32 *) &addr[i][j]) == FS_SIGNATURE && mps_fs_check(&addr[i][j])) { |
146 | fs = (struct mps_fs *) &addr[i][j]; |
179 | fs = (struct mps_fs *) &addr[i][j]; |
147 | goto fs_found; |
180 | goto fs_found; |
148 | } |
181 | } |
149 | } |
182 | } |
150 | } |
183 | } |
151 | 184 | ||
152 | return; |
185 | return; |
153 | 186 | ||
154 | fs_found: |
187 | fs_found: |
155 | printf("%L: MPS Floating Pointer Structure\n", fs); |
188 | printf("%L: MPS Floating Pointer Structure\n", fs); |
156 | 189 | ||
157 | frame_not_free((__address) fs); |
190 | frame_not_free((__address) fs); |
158 | 191 | ||
159 | if (fs->config_type == 0 && fs->configuration_table) { |
192 | if (fs->config_type == 0 && fs->configuration_table) { |
160 | if (fs->mpfib2 >> 7) { |
193 | if (fs->mpfib2 >> 7) { |
161 | printf("%s: PIC mode not supported\n", __FUNCTION__); |
194 | printf("%s: PIC mode not supported\n", __FUNCTION__); |
162 | return; |
195 | return; |
163 | } |
196 | } |
164 | 197 | ||
165 | ct = fs->configuration_table; |
198 | ct = fs->configuration_table; |
166 | frame_not_free((__address) ct); |
199 | frame_not_free((__address) ct); |
167 | config.cpu_count = configure_via_ct(); |
200 | config.cpu_count = configure_via_ct(); |
168 | } |
201 | } |
169 | else |
202 | else |
170 | config.cpu_count = configure_via_default(fs->config_type); |
203 | config.cpu_count = configure_via_default(fs->config_type); |
171 | 204 | ||
172 | if (config.cpu_count > 1) { |
205 | if (config.cpu_count > 1) { |
173 | map_page_to_frame((__address) l_apic, (__address) l_apic, PAGE_NOT_CACHEABLE, 0); |
206 | map_page_to_frame((__address) l_apic, (__address) l_apic, PAGE_NOT_CACHEABLE, 0); |
174 | } |
207 | } |
175 | 208 | ||
176 | 209 | ||
177 | /* |
210 | /* |
178 | * Must be initialized outside the kmp thread, since it is waited |
211 | * Must be initialized outside the kmp thread, since it is waited |
179 | * on before the kmp thread is created. |
212 | * on before the kmp thread is created. |
180 | */ |
213 | */ |
181 | waitq_initialize(&kmp_completion_wq); |
214 | waitq_initialize(&kmp_completion_wq); |
182 | return; |
215 | return; |
183 | } |
216 | } |
184 | 217 | ||
185 | int configure_via_ct(void) |
218 | int configure_via_ct(void) |
186 | { |
219 | { |
187 | __u8 *cur; |
220 | __u8 *cur; |
188 | int i, cnt; |
221 | int i, cnt; |
189 | 222 | ||
190 | if (ct->signature != CT_SIGNATURE) { |
223 | if (ct->signature != CT_SIGNATURE) { |
191 | printf("%s: bad ct->signature\n", __FUNCTION__); |
224 | printf("%s: bad ct->signature\n", __FUNCTION__); |
192 | return 1; |
225 | return 1; |
193 | } |
226 | } |
194 | if (!mps_ct_check()) { |
227 | if (!mps_ct_check()) { |
195 | printf("%s: bad ct checksum\n", __FUNCTION__); |
228 | printf("%s: bad ct checksum\n", __FUNCTION__); |
196 | return 1; |
229 | return 1; |
197 | } |
230 | } |
198 | if (ct->oem_table) { |
231 | if (ct->oem_table) { |
199 | printf("%s: ct->oem_table not supported\n", __FUNCTION__); |
232 | printf("%s: ct->oem_table not supported\n", __FUNCTION__); |
200 | return 1; |
233 | return 1; |
201 | } |
234 | } |
202 | 235 | ||
203 | l_apic = ct->l_apic; |
236 | l_apic = ct->l_apic; |
204 | 237 | ||
205 | cnt = 0; |
238 | cnt = 0; |
206 | cur = &ct->base_table[0]; |
239 | cur = &ct->base_table[0]; |
207 | for (i=0; i < ct->entry_count; i++) { |
240 | for (i=0; i < ct->entry_count; i++) { |
208 | switch (*cur) { |
241 | switch (*cur) { |
209 | /* Processor entry */ |
242 | /* Processor entry */ |
210 | case 0: |
243 | case 0: |
211 | processor_entries = processor_entries ? processor_entries : (struct __processor_entry *) cur; |
244 | processor_entries = processor_entries ? processor_entries : (struct __processor_entry *) cur; |
212 | processor_entry_cnt++; |
245 | processor_entry_cnt++; |
213 | cnt += ct_processor_entry((struct __processor_entry *) cur); |
246 | cnt += ct_processor_entry((struct __processor_entry *) cur); |
214 | cur += 20; |
247 | cur += 20; |
215 | break; |
248 | break; |
216 | 249 | ||
217 | /* Bus entry */ |
250 | /* Bus entry */ |
218 | case 1: |
251 | case 1: |
219 | bus_entries = bus_entries ? bus_entries : (struct __bus_entry *) cur; |
252 | bus_entries = bus_entries ? bus_entries : (struct __bus_entry *) cur; |
220 | bus_entry_cnt++; |
253 | bus_entry_cnt++; |
221 | ct_bus_entry((struct __bus_entry *) cur); |
254 | ct_bus_entry((struct __bus_entry *) cur); |
222 | cur += 8; |
255 | cur += 8; |
223 | break; |
256 | break; |
224 | 257 | ||
225 | /* I/O Apic */ |
258 | /* I/O Apic */ |
226 | case 2: |
259 | case 2: |
227 | io_apic_entries = io_apic_entries ? io_apic_entries : (struct __io_apic_entry *) cur; |
260 | io_apic_entries = io_apic_entries ? io_apic_entries : (struct __io_apic_entry *) cur; |
228 | io_apic_entry_cnt++; |
261 | io_apic_entry_cnt++; |
229 | ct_io_apic_entry((struct __io_apic_entry *) cur); |
262 | ct_io_apic_entry((struct __io_apic_entry *) cur); |
230 | cur += 8; |
263 | cur += 8; |
231 | break; |
264 | break; |
232 | 265 | ||
233 | /* I/O Interrupt Assignment */ |
266 | /* I/O Interrupt Assignment */ |
234 | case 3: |
267 | case 3: |
235 | io_intr_entries = io_intr_entries ? io_intr_entries : (struct __io_intr_entry *) cur; |
268 | io_intr_entries = io_intr_entries ? io_intr_entries : (struct __io_intr_entry *) cur; |
236 | io_intr_entry_cnt++; |
269 | io_intr_entry_cnt++; |
237 | ct_io_intr_entry((struct __io_intr_entry *) cur); |
270 | ct_io_intr_entry((struct __io_intr_entry *) cur); |
238 | cur += 8; |
271 | cur += 8; |
239 | break; |
272 | break; |
240 | 273 | ||
241 | /* Local Interrupt Assignment */ |
274 | /* Local Interrupt Assignment */ |
242 | case 4: |
275 | case 4: |
243 | l_intr_entries = l_intr_entries ? l_intr_entries : (struct __l_intr_entry *) cur; |
276 | l_intr_entries = l_intr_entries ? l_intr_entries : (struct __l_intr_entry *) cur; |
244 | l_intr_entry_cnt++; |
277 | l_intr_entry_cnt++; |
245 | ct_l_intr_entry((struct __l_intr_entry *) cur); |
278 | ct_l_intr_entry((struct __l_intr_entry *) cur); |
246 | cur += 8; |
279 | cur += 8; |
247 | break; |
280 | break; |
248 | 281 | ||
249 | default: |
282 | default: |
250 | /* |
283 | /* |
251 | * Something is wrong. Fallback to UP mode. |
284 | * Something is wrong. Fallback to UP mode. |
252 | */ |
285 | */ |
253 | 286 | ||
254 | printf("%s: ct badness\n", __FUNCTION__); |
287 | printf("%s: ct badness\n", __FUNCTION__); |
255 | return 1; |
288 | return 1; |
256 | } |
289 | } |
257 | } |
290 | } |
258 | 291 | ||
259 | /* |
292 | /* |
260 | * Process extended entries. |
293 | * Process extended entries. |
261 | */ |
294 | */ |
262 | ct_extended_entries(); |
295 | ct_extended_entries(); |
263 | return cnt; |
296 | return cnt; |
264 | } |
297 | } |
265 | 298 | ||
266 | int configure_via_default(__u8 n) |
299 | int configure_via_default(__u8 n) |
267 | { |
300 | { |
268 | /* |
301 | /* |
269 | * Not yet implemented. |
302 | * Not yet implemented. |
270 | */ |
303 | */ |
271 | printf("%s: not supported\n", __FUNCTION__); |
304 | printf("%s: not supported\n", __FUNCTION__); |
272 | return 1; |
305 | return 1; |
273 | } |
306 | } |
274 | 307 | ||
275 | 308 | ||
276 | int ct_processor_entry(struct __processor_entry *pr) |
309 | int ct_processor_entry(struct __processor_entry *pr) |
277 | { |
310 | { |
278 | /* |
311 | /* |
279 | * Ignore processors which are not marked enabled. |
312 | * Ignore processors which are not marked enabled. |
280 | */ |
313 | */ |
281 | if ((pr->cpu_flags & (1<<0)) == 0) |
314 | if ((pr->cpu_flags & (1<<0)) == 0) |
282 | return 0; |
315 | return 0; |
283 | 316 | ||
284 | apic_id_mask |= (1<<pr->l_apic_id); |
317 | apic_id_mask |= (1<<pr->l_apic_id); |
285 | return 1; |
318 | return 1; |
286 | } |
319 | } |
287 | 320 | ||
288 | void ct_bus_entry(struct __bus_entry *bus) |
321 | void ct_bus_entry(struct __bus_entry *bus) |
289 | { |
322 | { |
290 | #ifdef MPSCT_VERBOSE |
323 | #ifdef MPSCT_VERBOSE |
291 | char buf[7]; |
324 | char buf[7]; |
292 | memcopy((__address) bus->bus_type, (__address) buf, 6); |
325 | memcopy((__address) bus->bus_type, (__address) buf, 6); |
293 | buf[6] = 0; |
326 | buf[6] = 0; |
294 | printf("bus%d: %s\n", bus->bus_id, buf); |
327 | printf("bus%d: %s\n", bus->bus_id, buf); |
295 | #endif |
328 | #endif |
296 | } |
329 | } |
297 | 330 | ||
298 | void ct_io_apic_entry(struct __io_apic_entry *ioa) |
331 | void ct_io_apic_entry(struct __io_apic_entry *ioa) |
299 | { |
332 | { |
300 | static int io_apic_count = 0; |
333 | static int io_apic_count = 0; |
301 | 334 | ||
302 | /* this ioapic is marked unusable */ |
335 | /* this ioapic is marked unusable */ |
303 | if (ioa->io_apic_flags & 1 == 0) |
336 | if (ioa->io_apic_flags & 1 == 0) |
304 | return; |
337 | return; |
305 | 338 | ||
306 | if (io_apic_count++ > 0) { |
339 | if (io_apic_count++ > 0) { |
307 | /* |
340 | /* |
308 | * Multiple IO APIC's are currently not supported. |
341 | * Multiple IO APIC's are currently not supported. |
309 | */ |
342 | */ |
310 | return; |
343 | return; |
311 | } |
344 | } |
312 | 345 | ||
313 | map_page_to_frame((__address) ioa->io_apic, (__address) ioa->io_apic, PAGE_NOT_CACHEABLE, 0); |
346 | map_page_to_frame((__address) ioa->io_apic, (__address) ioa->io_apic, PAGE_NOT_CACHEABLE, 0); |
314 | 347 | ||
315 | io_apic = ioa->io_apic; |
348 | io_apic = ioa->io_apic; |
316 | } |
349 | } |
317 | 350 | ||
318 | //#define MPSCT_VERBOSE |
351 | //#define MPSCT_VERBOSE |
319 | void ct_io_intr_entry(struct __io_intr_entry *iointr) |
352 | void ct_io_intr_entry(struct __io_intr_entry *iointr) |
320 | { |
353 | { |
321 | #ifdef MPSCT_VERBOSE |
354 | #ifdef MPSCT_VERBOSE |
322 | switch (iointr->intr_type) { |
355 | switch (iointr->intr_type) { |
323 | case 0: printf("INT"); break; |
356 | case 0: printf("INT"); break; |
324 | case 1: printf("NMI"); break; |
357 | case 1: printf("NMI"); break; |
325 | case 2: printf("SMI"); break; |
358 | case 2: printf("SMI"); break; |
326 | case 3: printf("ExtINT"); break; |
359 | case 3: printf("ExtINT"); break; |
327 | } |
360 | } |
328 | putchar(','); |
361 | putchar(','); |
329 | switch (iointr->poel&3) { |
362 | switch (iointr->poel&3) { |
330 | case 0: printf("bus-like"); break; |
363 | case 0: printf("bus-like"); break; |
331 | case 1: printf("active high"); break; |
364 | case 1: printf("active high"); break; |
332 | case 2: printf("reserved"); break; |
365 | case 2: printf("reserved"); break; |
333 | case 3: printf("active low"); break; |
366 | case 3: printf("active low"); break; |
334 | } |
367 | } |
335 | putchar(','); |
368 | putchar(','); |
336 | switch ((iointr->poel>>2)&3) { |
369 | switch ((iointr->poel>>2)&3) { |
337 | case 0: printf("bus-like"); break; |
370 | case 0: printf("bus-like"); break; |
338 | case 1: printf("edge-triggered"); break; |
371 | case 1: printf("edge-triggered"); break; |
339 | case 2: printf("reserved"); break; |
372 | case 2: printf("reserved"); break; |
340 | case 3: printf("level-triggered"); break; |
373 | case 3: printf("level-triggered"); break; |
341 | } |
374 | } |
342 | putchar(','); |
375 | putchar(','); |
343 | printf("bus%d,irq%d", iointr->src_bus_id, iointr->src_bus_irq); |
376 | printf("bus%d,irq%d", iointr->src_bus_id, iointr->src_bus_irq); |
344 | putchar(','); |
377 | putchar(','); |
345 | printf("io_apic%d,pin%d", iointr->dst_io_apic_id, iointr->dst_io_apic_pin); |
378 | printf("io_apic%d,pin%d", iointr->dst_io_apic_id, iointr->dst_io_apic_pin); |
346 | putchar('\n'); |
379 | putchar('\n'); |
347 | #endif |
380 | #endif |
348 | } |
381 | } |
349 | 382 | ||
350 | void ct_l_intr_entry(struct __l_intr_entry *lintr) |
383 | void ct_l_intr_entry(struct __l_intr_entry *lintr) |
351 | { |
384 | { |
352 | #ifdef MPSCT_VERBOSE |
385 | #ifdef MPSCT_VERBOSE |
353 | switch (lintr->intr_type) { |
386 | switch (lintr->intr_type) { |
354 | case 0: printf("INT"); break; |
387 | case 0: printf("INT"); break; |
355 | case 1: printf("NMI"); break; |
388 | case 1: printf("NMI"); break; |
356 | case 2: printf("SMI"); break; |
389 | case 2: printf("SMI"); break; |
357 | case 3: printf("ExtINT"); break; |
390 | case 3: printf("ExtINT"); break; |
358 | } |
391 | } |
359 | putchar(','); |
392 | putchar(','); |
360 | switch (lintr->poel&3) { |
393 | switch (lintr->poel&3) { |
361 | case 0: printf("bus-like"); break; |
394 | case 0: printf("bus-like"); break; |
362 | case 1: printf("active high"); break; |
395 | case 1: printf("active high"); break; |
363 | case 2: printf("reserved"); break; |
396 | case 2: printf("reserved"); break; |
364 | case 3: printf("active low"); break; |
397 | case 3: printf("active low"); break; |
365 | } |
398 | } |
366 | putchar(','); |
399 | putchar(','); |
367 | switch ((lintr->poel>>2)&3) { |
400 | switch ((lintr->poel>>2)&3) { |
368 | case 0: printf("bus-like"); break; |
401 | case 0: printf("bus-like"); break; |
369 | case 1: printf("edge-triggered"); break; |
402 | case 1: printf("edge-triggered"); break; |
370 | case 2: printf("reserved"); break; |
403 | case 2: printf("reserved"); break; |
371 | case 3: printf("level-triggered"); break; |
404 | case 3: printf("level-triggered"); break; |
372 | } |
405 | } |
373 | putchar(','); |
406 | putchar(','); |
374 | printf("bus%d,irq%d", lintr->src_bus_id, lintr->src_bus_irq); |
407 | printf("bus%d,irq%d", lintr->src_bus_id, lintr->src_bus_irq); |
375 | putchar(','); |
408 | putchar(','); |
376 | printf("l_apic%d,pin%d", lintr->dst_l_apic_id, lintr->dst_l_apic_pin); |
409 | printf("l_apic%d,pin%d", lintr->dst_l_apic_id, lintr->dst_l_apic_pin); |
377 | putchar('\n'); |
410 | putchar('\n'); |
378 | #endif |
411 | #endif |
379 | } |
412 | } |
380 | 413 | ||
381 | void ct_extended_entries(void) |
414 | void ct_extended_entries(void) |
382 | { |
415 | { |
383 | __u8 *ext = (__u8 *) ct + ct->base_table_length; |
416 | __u8 *ext = (__u8 *) ct + ct->base_table_length; |
384 | __u8 *cur; |
417 | __u8 *cur; |
385 | 418 | ||
386 | for (cur = ext; cur < ext + ct->ext_table_length; cur += cur[CT_EXT_ENTRY_LEN]) { |
419 | for (cur = ext; cur < ext + ct->ext_table_length; cur += cur[CT_EXT_ENTRY_LEN]) { |
387 | switch (cur[CT_EXT_ENTRY_TYPE]) { |
420 | switch (cur[CT_EXT_ENTRY_TYPE]) { |
388 | default: |
421 | default: |
389 | printf("%L: skipping MP Configuration Table extended entry type %d\n", cur, cur[CT_EXT_ENTRY_TYPE]); |
422 | printf("%L: skipping MP Configuration Table extended entry type %d\n", cur, cur[CT_EXT_ENTRY_TYPE]); |
390 | break; |
423 | break; |
391 | } |
424 | } |
392 | } |
425 | } |
393 | } |
426 | } |
394 | - | ||
395 | - | ||
396 | /* |
- | |
397 | * Kernel thread for bringing up application processors. It becomes clear |
- | |
398 | * that we need an arrangement like this (AP's being initialized by a kernel |
- | |
399 | * thread), for a thread has its dedicated stack. (The stack used during the |
- | |
400 | * BSP initialization (prior the very first call to scheduler()) will be used |
- | |
401 | * as an initialization stack for each AP.) |
- | |
402 | */ |
- | |
403 | void kmp(void *arg) |
- | |
404 | { |
- | |
405 | struct __processor_entry *pr; |
- | |
406 | __address src, dst; |
- | |
407 | int i; |
- | |
408 | - | ||
409 | waitq_initialize(&ap_completion_wq); |
- | |
410 | - | ||
411 | /* |
- | |
412 | * Processor entries immediately follow the configuration table header. |
- | |
413 | */ |
- | |
414 | pr = processor_entries; |
- | |
415 | - | ||
416 | /* |
- | |
417 | * We need to access data in frame 0. |
- | |
418 | * We boldly make use of kernel address space mapping. |
- | |
419 | */ |
- | |
420 | - | ||
421 | /* |
- | |
422 | * Set the warm-reset vector to the real-mode address of 4K-aligned ap_boot() |
- | |
423 | */ |
- | |
424 | *((__u16 *) (PA2KA(0x467+0))) = ((__address) ap_boot) >> 4; /* segment */ |
- | |
425 | *((__u16 *) (PA2KA(0x467+2))) = 0; /* offset */ |
- | |
426 | - | ||
427 | /* |
- | |
428 | * Save 0xa to address 0xf of the CMOS RAM. |
- | |
429 | * BIOS will not do the POST after the INIT signal. |
- | |
430 | */ |
- | |
431 | outb(0x70,0xf); |
- | |
432 | outb(0x71,0xa); |
- | |
433 | - | ||
434 | cpu_priority_high(); |
- | |
435 | - | ||
436 | pic_disable_irqs(0xffff); |
- | |
437 | apic_init(); |
- | |
438 | - | ||
439 | for (i = 0; i < processor_entry_cnt; i++) { |
- | |
440 | struct descriptor *gdt_new; |
- | |
441 | - | ||
442 | /* |
- | |
443 | * Skip processors marked unusable. |
- | |
444 | */ |
- | |
445 | if (pr[i].cpu_flags & (1<<0) == 0) |
- | |
446 | continue; |
- | |
447 | - | ||
448 | /* |
- | |
449 | * The bootstrap processor is already up. |
- | |
450 | */ |
- | |
451 | if (pr[i].cpu_flags & (1<<1)) |
- | |
452 | continue; |
- | |
453 | - | ||
454 | if (pr[i].l_apic_id == l_apic_id()) { |
- | |
455 | printf("%L: bad processor entry #%d, will not send IPI to myself\n", &pr[i], i); |
- | |
456 | continue; |
- | |
457 | } |
- | |
458 | - | ||
459 | /* |
- | |
460 | * Prepare new GDT for CPU in question. |
- | |
461 | */ |
- | |
462 | if (!(gdt_new = (struct descriptor *) malloc(GDT_ITEMS*sizeof(struct descriptor)))) |
- | |
463 | panic("couldn't allocate memory for GDT\n"); |
- | |
464 | - | ||
465 | memcopy(gdt, gdt_new, GDT_ITEMS*sizeof(struct descriptor)); |
- | |
466 | memsetb(&gdt_new[TSS_DES], sizeof(struct descriptor), 0); |
- | |
467 | gdtr.base = KA2PA((__address) gdt_new); |
- | |
468 | - | ||
469 | if (l_apic_send_init_ipi(pr[i].l_apic_id)) { |
- | |
470 | /* |
- | |
471 | * There may be just one AP being initialized at |
- | |
472 | * the time. After it comes completely up, it is |
- | |
473 | * supposed to wake us up. |
- | |
474 | */ |
- | |
475 | waitq_sleep(&ap_completion_wq); |
- | |
476 | cpu_priority_high(); |
- | |
477 | } |
- | |
478 | else { |
- | |
479 | printf("INIT IPI for l_apic%d failed\n", pr[i].l_apic_id); |
- | |
480 | } |
- | |
481 | } |
- | |
482 | - | ||
483 | /* |
- | |
484 | * Wakeup the kinit thread so that |
- | |
485 | * system initialization can go on. |
- | |
486 | */ |
- | |
487 | waitq_wakeup(&kmp_completion_wq, WAKEUP_FIRST); |
- | |
488 | } |
- | |
489 | 427 | ||
490 | int mps_irq_to_pin(int irq) |
428 | int mps_irq_to_pin(int irq) |
491 | { |
429 | { |
492 | int i; |
430 | int i; |
493 | 431 | ||
494 | for(i=0;i<io_intr_entry_cnt;i++) { |
432 | for(i=0;i<io_intr_entry_cnt;i++) { |
495 | if (io_intr_entries[i].src_bus_irq == irq && io_intr_entries[i].intr_type == 0) |
433 | if (io_intr_entries[i].src_bus_irq == irq && io_intr_entries[i].intr_type == 0) |
496 | return io_intr_entries[i].dst_io_apic_pin; |
434 | return io_intr_entries[i].dst_io_apic_pin; |
497 | } |
435 | } |
498 | 436 | ||
499 | return -1; |
437 | return -1; |
500 | } |
438 | } |
501 | 439 | ||
502 | #endif /* __SMP__ */ |
440 | #endif /* __SMP__ */ |
503 | 441 |