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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> |
31 | #include <arch/pm.h> |
32 | #include <config.h> |
32 | #include <config.h> |
33 | #include <print.h> |
33 | #include <print.h> |
34 | #include <panic.h> |
34 | #include <panic.h> |
35 | #include <arch/smp/mps.h> |
35 | #include <arch/smp/mps.h> |
36 | #include <arch/smp/ap.h> |
36 | #include <arch/smp/ap.h> |
37 | #include <arch/smp/apic.h> |
37 | #include <arch/smp/apic.h> |
38 | #include <func.h> |
38 | #include <func.h> |
39 | #include <arch/types.h> |
39 | #include <arch/types.h> |
40 | #include <typedefs.h> |
40 | #include <typedefs.h> |
41 | #include <synch/waitq.h> |
41 | #include <synch/waitq.h> |
42 | #include <time/delay.h> |
42 | #include <time/delay.h> |
43 | #include <mm/heap.h> |
43 | #include <mm/heap.h> |
44 | #include <mm/page.h> |
44 | #include <mm/page.h> |
45 | #include <mm/frame.h> |
45 | #include <mm/frame.h> |
46 | #include <cpu.h> |
46 | #include <cpu.h> |
47 | #include <arch/i8259.h> |
47 | #include <arch/i8259.h> |
48 | #include <arch/asm.h> |
48 | #include <arch/asm.h> |
49 | #include <arch/bios/bios.h> |
49 | #include <arch/bios/bios.h> |
50 | #include <arch/acpi/madt.h> |
50 | #include <arch/acpi/madt.h> |
51 | 51 | ||
52 | /* |
52 | /* |
53 | * MultiProcessor Specification detection code. |
53 | * MultiProcessor Specification detection code. |
54 | */ |
54 | */ |
55 | 55 | ||
56 | #define FS_SIGNATURE 0x5f504d5f |
56 | #define FS_SIGNATURE 0x5f504d5f |
57 | #define CT_SIGNATURE 0x504d4350 |
57 | #define CT_SIGNATURE 0x504d4350 |
58 | 58 | ||
59 | int mps_fs_check(__u8 *base); |
59 | int mps_fs_check(__u8 *base); |
60 | int mps_ct_check(void); |
60 | int mps_ct_check(void); |
61 | 61 | ||
62 | int configure_via_ct(void); |
62 | int configure_via_ct(void); |
63 | int configure_via_default(__u8 n); |
63 | int configure_via_default(__u8 n); |
64 | 64 | ||
65 | int ct_processor_entry(struct __processor_entry *pr); |
65 | int ct_processor_entry(struct __processor_entry *pr); |
66 | void ct_bus_entry(struct __bus_entry *bus); |
66 | void ct_bus_entry(struct __bus_entry *bus); |
67 | void ct_io_apic_entry(struct __io_apic_entry *ioa); |
67 | void ct_io_apic_entry(struct __io_apic_entry *ioa); |
68 | void ct_io_intr_entry(struct __io_intr_entry *iointr); |
68 | void ct_io_intr_entry(struct __io_intr_entry *iointr); |
69 | void ct_l_intr_entry(struct __l_intr_entry *lintr); |
69 | void ct_l_intr_entry(struct __l_intr_entry *lintr); |
70 | 70 | ||
71 | void ct_extended_entries(void); |
71 | void ct_extended_entries(void); |
72 | 72 | ||
73 | static struct mps_fs *fs; |
73 | static struct mps_fs *fs; |
74 | static struct mps_ct *ct; |
74 | static struct mps_ct *ct; |
75 | 75 | ||
76 | struct __processor_entry *processor_entries = NULL; |
76 | struct __processor_entry *processor_entries = NULL; |
77 | struct __bus_entry *bus_entries = NULL; |
77 | struct __bus_entry *bus_entries = NULL; |
78 | struct __io_apic_entry *io_apic_entries = NULL; |
78 | struct __io_apic_entry *io_apic_entries = NULL; |
79 | struct __io_intr_entry *io_intr_entries = NULL; |
79 | struct __io_intr_entry *io_intr_entries = NULL; |
80 | struct __l_intr_entry *l_intr_entries = NULL; |
80 | struct __l_intr_entry *l_intr_entries = NULL; |
81 | 81 | ||
82 | int processor_entry_cnt = 0; |
82 | int processor_entry_cnt = 0; |
83 | int bus_entry_cnt = 0; |
83 | int bus_entry_cnt = 0; |
84 | int io_apic_entry_cnt = 0; |
84 | int io_apic_entry_cnt = 0; |
85 | int io_intr_entry_cnt = 0; |
85 | int io_intr_entry_cnt = 0; |
86 | int l_intr_entry_cnt = 0; |
86 | int l_intr_entry_cnt = 0; |
87 | 87 | ||
88 | waitq_t ap_completion_wq; |
88 | waitq_t ap_completion_wq; |
89 | waitq_t kmp_completion_wq; |
89 | waitq_t kmp_completion_wq; |
90 | 90 | ||
91 | /* |
91 | /* |
92 | * Used to check the integrity of the MP Floating Structure. |
92 | * Used to check the integrity of the MP Floating Structure. |
93 | */ |
93 | */ |
94 | int mps_fs_check(__u8 *base) |
94 | int mps_fs_check(__u8 *base) |
95 | { |
95 | { |
96 | int i; |
96 | int i; |
97 | __u8 sum; |
97 | __u8 sum; |
98 | 98 | ||
99 | for (i = 0, sum = 0; i < 16; i++) |
99 | for (i = 0, sum = 0; i < 16; i++) |
100 | sum += base[i]; |
100 | sum += base[i]; |
101 | 101 | ||
102 | return !sum; |
102 | return !sum; |
103 | } |
103 | } |
104 | 104 | ||
105 | /* |
105 | /* |
106 | * Used to check the integrity of the MP Configuration Table. |
106 | * Used to check the integrity of the MP Configuration Table. |
107 | */ |
107 | */ |
108 | int mps_ct_check(void) |
108 | int mps_ct_check(void) |
109 | { |
109 | { |
110 | __u8 *base = (__u8 *) ct; |
110 | __u8 *base = (__u8 *) ct; |
111 | __u8 *ext = base + ct->base_table_length; |
111 | __u8 *ext = base + ct->base_table_length; |
112 | __u8 sum; |
112 | __u8 sum; |
113 | int i; |
113 | int i; |
114 | 114 | ||
115 | /* count the checksum for the base table */ |
115 | /* count the checksum for the base table */ |
116 | for (i=0,sum=0; i < ct->base_table_length; i++) |
116 | for (i=0,sum=0; i < ct->base_table_length; i++) |
117 | sum += base[i]; |
117 | sum += base[i]; |
118 | 118 | ||
119 | if (sum) |
119 | if (sum) |
120 | return 0; |
120 | return 0; |
121 | 121 | ||
122 | /* count the checksum for the extended table */ |
122 | /* count the checksum for the extended table */ |
123 | for (i=0,sum=0; i < ct->ext_table_length; i++) |
123 | for (i=0,sum=0; i < ct->ext_table_length; i++) |
124 | sum += ext[i]; |
124 | sum += ext[i]; |
125 | 125 | ||
126 | return sum == ct->ext_table_checksum; |
126 | return sum == ct->ext_table_checksum; |
127 | } |
127 | } |
128 | 128 | ||
129 | void mps_init(void) |
129 | void mps_init(void) |
130 | { |
130 | { |
131 | __u8 *addr[2] = { NULL, (__u8 *) 0xf0000 }; |
131 | __u8 *addr[2] = { NULL, (__u8 *) 0xf0000 }; |
132 | int i, j, length[2] = { 1024, 64*1024 }; |
132 | int i, j, length[2] = { 1024, 64*1024 }; |
133 | 133 | ||
134 | 134 | ||
135 | /* |
135 | /* |
136 | * Find MP Floating Pointer Structure |
136 | * Find MP Floating Pointer Structure |
137 | * 1a. search first 1K of EBDA |
137 | * 1a. search first 1K of EBDA |
138 | * 1b. if EBDA is undefined, search last 1K of base memory |
138 | * 1b. if EBDA is undefined, search last 1K of base memory |
139 | * 2. search 64K starting at 0xf0000 |
139 | * 2. search 64K starting at 0xf0000 |
140 | */ |
140 | */ |
141 | 141 | ||
142 | addr[0] = (__u8 *) (ebda ? ebda : 639 * 1024); |
142 | addr[0] = (__u8 *) (ebda ? ebda : 639 * 1024); |
143 | for (i = 0; i < 2; i++) { |
143 | for (i = 0; i < 2; i++) { |
144 | for (j = 0; j < length[i]; j += 16) { |
144 | for (j = 0; j < length[i]; j += 16) { |
145 | if (*((__u32 *) &addr[i][j]) == FS_SIGNATURE && mps_fs_check(&addr[i][j])) { |
145 | if (*((__u32 *) &addr[i][j]) == FS_SIGNATURE && mps_fs_check(&addr[i][j])) { |
146 | fs = (struct mps_fs *) &addr[i][j]; |
146 | fs = (struct mps_fs *) &addr[i][j]; |
147 | goto fs_found; |
147 | goto fs_found; |
148 | } |
148 | } |
149 | } |
149 | } |
150 | } |
150 | } |
151 | 151 | ||
152 | return; |
152 | return; |
153 | 153 | ||
154 | fs_found: |
154 | fs_found: |
155 | printf("%L: MPS Floating Pointer Structure\n", fs); |
155 | printf("%L: MPS Floating Pointer Structure\n", fs); |
156 | 156 | ||
157 | frame_not_free((__address) fs); |
157 | frame_not_free((__address) fs); |
158 | 158 | ||
159 | if (fs->config_type == 0 && fs->configuration_table) { |
159 | if (fs->config_type == 0 && fs->configuration_table) { |
160 | if (fs->mpfib2 >> 7) { |
160 | if (fs->mpfib2 >> 7) { |
161 | printf("%s: PIC mode not supported\n", __FUNCTION__); |
161 | printf("%s: PIC mode not supported\n", __FUNCTION__); |
162 | return; |
162 | return; |
163 | } |
163 | } |
164 | 164 | ||
165 | ct = fs->configuration_table; |
165 | ct = fs->configuration_table; |
166 | frame_not_free((__address) ct); |
166 | frame_not_free((__address) ct); |
167 | config.cpu_count = configure_via_ct(); |
167 | config.cpu_count = configure_via_ct(); |
168 | } |
168 | } |
169 | else |
169 | else |
170 | config.cpu_count = configure_via_default(fs->config_type); |
170 | config.cpu_count = configure_via_default(fs->config_type); |
171 | 171 | ||
172 | if (config.cpu_count > 1) { |
172 | if (config.cpu_count > 1) { |
173 | map_page_to_frame((__address) l_apic, (__address) l_apic, PAGE_NOT_CACHEABLE, 0); |
173 | map_page_to_frame((__address) l_apic, (__address) l_apic, PAGE_NOT_CACHEABLE, 0); |
174 | } |
174 | } |
175 | 175 | ||
176 | 176 | ||
177 | /* |
177 | /* |
178 | * Must be initialized outside the kmp thread, since it is waited |
178 | * Must be initialized outside the kmp thread, since it is waited |
179 | * on before the kmp thread is created. |
179 | * on before the kmp thread is created. |
180 | */ |
180 | */ |
181 | waitq_initialize(&kmp_completion_wq); |
181 | waitq_initialize(&kmp_completion_wq); |
182 | return; |
182 | return; |
183 | } |
183 | } |
184 | 184 | ||
185 | int configure_via_ct(void) |
185 | int configure_via_ct(void) |
186 | { |
186 | { |
187 | __u8 *cur; |
187 | __u8 *cur; |
188 | int i, cnt; |
188 | int i, cnt; |
189 | 189 | ||
190 | if (ct->signature != CT_SIGNATURE) { |
190 | if (ct->signature != CT_SIGNATURE) { |
191 | printf("%s: bad ct->signature\n", __FUNCTION__); |
191 | printf("%s: bad ct->signature\n", __FUNCTION__); |
192 | return 1; |
192 | return 1; |
193 | } |
193 | } |
194 | if (!mps_ct_check()) { |
194 | if (!mps_ct_check()) { |
195 | printf("%s: bad ct checksum\n", __FUNCTION__); |
195 | printf("%s: bad ct checksum\n", __FUNCTION__); |
196 | return 1; |
196 | return 1; |
197 | } |
197 | } |
198 | if (ct->oem_table) { |
198 | if (ct->oem_table) { |
199 | printf("%s: ct->oem_table not supported\n", __FUNCTION__); |
199 | printf("%s: ct->oem_table not supported\n", __FUNCTION__); |
200 | return 1; |
200 | return 1; |
201 | } |
201 | } |
202 | 202 | ||
203 | l_apic = ct->l_apic; |
203 | l_apic = ct->l_apic; |
204 | 204 | ||
205 | cnt = 0; |
205 | cnt = 0; |
206 | cur = &ct->base_table[0]; |
206 | cur = &ct->base_table[0]; |
207 | for (i=0; i < ct->entry_count; i++) { |
207 | for (i=0; i < ct->entry_count; i++) { |
208 | switch (*cur) { |
208 | switch (*cur) { |
209 | /* Processor entry */ |
209 | /* Processor entry */ |
210 | case 0: |
210 | case 0: |
211 | processor_entries = processor_entries ? processor_entries : (struct __processor_entry *) cur; |
211 | processor_entries = processor_entries ? processor_entries : (struct __processor_entry *) cur; |
212 | processor_entry_cnt++; |
212 | processor_entry_cnt++; |
213 | cnt += ct_processor_entry((struct __processor_entry *) cur); |
213 | cnt += ct_processor_entry((struct __processor_entry *) cur); |
214 | cur += 20; |
214 | cur += 20; |
215 | break; |
215 | break; |
216 | 216 | ||
217 | /* Bus entry */ |
217 | /* Bus entry */ |
218 | case 1: |
218 | case 1: |
219 | bus_entries = bus_entries ? bus_entries : (struct __bus_entry *) cur; |
219 | bus_entries = bus_entries ? bus_entries : (struct __bus_entry *) cur; |
220 | bus_entry_cnt++; |
220 | bus_entry_cnt++; |
221 | ct_bus_entry((struct __bus_entry *) cur); |
221 | ct_bus_entry((struct __bus_entry *) cur); |
222 | cur += 8; |
222 | cur += 8; |
223 | break; |
223 | break; |
224 | 224 | ||
225 | /* I/O Apic */ |
225 | /* I/O Apic */ |
226 | case 2: |
226 | case 2: |
227 | io_apic_entries = io_apic_entries ? io_apic_entries : (struct __io_apic_entry *) cur; |
227 | io_apic_entries = io_apic_entries ? io_apic_entries : (struct __io_apic_entry *) cur; |
228 | io_apic_entry_cnt++; |
228 | io_apic_entry_cnt++; |
229 | ct_io_apic_entry((struct __io_apic_entry *) cur); |
229 | ct_io_apic_entry((struct __io_apic_entry *) cur); |
230 | cur += 8; |
230 | cur += 8; |
231 | break; |
231 | break; |
232 | 232 | ||
233 | /* I/O Interrupt Assignment */ |
233 | /* I/O Interrupt Assignment */ |
234 | case 3: |
234 | case 3: |
235 | io_intr_entries = io_intr_entries ? io_intr_entries : (struct __io_intr_entry *) cur; |
235 | io_intr_entries = io_intr_entries ? io_intr_entries : (struct __io_intr_entry *) cur; |
236 | io_intr_entry_cnt++; |
236 | io_intr_entry_cnt++; |
237 | ct_io_intr_entry((struct __io_intr_entry *) cur); |
237 | ct_io_intr_entry((struct __io_intr_entry *) cur); |
238 | cur += 8; |
238 | cur += 8; |
239 | break; |
239 | break; |
240 | 240 | ||
241 | /* Local Interrupt Assignment */ |
241 | /* Local Interrupt Assignment */ |
242 | case 4: |
242 | case 4: |
243 | l_intr_entries = l_intr_entries ? l_intr_entries : (struct __l_intr_entry *) cur; |
243 | l_intr_entries = l_intr_entries ? l_intr_entries : (struct __l_intr_entry *) cur; |
244 | l_intr_entry_cnt++; |
244 | l_intr_entry_cnt++; |
245 | ct_l_intr_entry((struct __l_intr_entry *) cur); |
245 | ct_l_intr_entry((struct __l_intr_entry *) cur); |
246 | cur += 8; |
246 | cur += 8; |
247 | break; |
247 | break; |
248 | 248 | ||
249 | default: |
249 | default: |
250 | /* |
250 | /* |
251 | * Something is wrong. Fallback to UP mode. |
251 | * Something is wrong. Fallback to UP mode. |
252 | */ |
252 | */ |
253 | 253 | ||
254 | printf("%s: ct badness\n", __FUNCTION__); |
254 | printf("%s: ct badness\n", __FUNCTION__); |
255 | return 1; |
255 | return 1; |
256 | } |
256 | } |
257 | } |
257 | } |
258 | 258 | ||
259 | /* |
259 | /* |
260 | * Process extended entries. |
260 | * Process extended entries. |
261 | */ |
261 | */ |
262 | ct_extended_entries(); |
262 | ct_extended_entries(); |
263 | return cnt; |
263 | return cnt; |
264 | } |
264 | } |
265 | 265 | ||
266 | int configure_via_default(__u8 n) |
266 | int configure_via_default(__u8 n) |
267 | { |
267 | { |
268 | /* |
268 | /* |
269 | * Not yet implemented. |
269 | * Not yet implemented. |
270 | */ |
270 | */ |
271 | printf("%s: not supported\n", __FUNCTION__); |
271 | printf("%s: not supported\n", __FUNCTION__); |
272 | return 1; |
272 | return 1; |
273 | } |
273 | } |
274 | 274 | ||
275 | 275 | ||
276 | int ct_processor_entry(struct __processor_entry *pr) |
276 | int ct_processor_entry(struct __processor_entry *pr) |
277 | { |
277 | { |
278 | /* |
278 | /* |
279 | * Ignore processors which are not marked enabled. |
279 | * Ignore processors which are not marked enabled. |
280 | */ |
280 | */ |
281 | if ((pr->cpu_flags & (1<<0)) == 0) |
281 | if ((pr->cpu_flags & (1<<0)) == 0) |
282 | return 0; |
282 | return 0; |
283 | 283 | ||
284 | apic_id_mask |= (1<<pr->l_apic_id); |
284 | apic_id_mask |= (1<<pr->l_apic_id); |
285 | return 1; |
285 | return 1; |
286 | } |
286 | } |
287 | 287 | ||
288 | void ct_bus_entry(struct __bus_entry *bus) |
288 | void ct_bus_entry(struct __bus_entry *bus) |
289 | { |
289 | { |
290 | #ifdef MPSCT_VERBOSE |
290 | #ifdef MPSCT_VERBOSE |
291 | char buf[7]; |
291 | char buf[7]; |
292 | memcopy((__address) bus->bus_type, (__address) buf, 6); |
292 | memcopy((__address) bus->bus_type, (__address) buf, 6); |
293 | buf[6] = 0; |
293 | buf[6] = 0; |
294 | printf("bus%d: %s\n", bus->bus_id, buf); |
294 | printf("bus%d: %s\n", bus->bus_id, buf); |
295 | #endif |
295 | #endif |
296 | } |
296 | } |
297 | 297 | ||
298 | void ct_io_apic_entry(struct __io_apic_entry *ioa) |
298 | void ct_io_apic_entry(struct __io_apic_entry *ioa) |
299 | { |
299 | { |
300 | static int io_apic_count = 0; |
300 | static int io_apic_count = 0; |
301 | 301 | ||
302 | /* this ioapic is marked unusable */ |
302 | /* this ioapic is marked unusable */ |
303 | if (ioa->io_apic_flags & 1 == 0) |
303 | if (ioa->io_apic_flags & 1 == 0) |
304 | return; |
304 | return; |
305 | 305 | ||
306 | if (io_apic_count++ > 0) { |
306 | if (io_apic_count++ > 0) { |
307 | /* |
307 | /* |
308 | * Multiple IO APIC's are currently not supported. |
308 | * Multiple IO APIC's are currently not supported. |
309 | */ |
309 | */ |
310 | return; |
310 | return; |
311 | } |
311 | } |
312 | 312 | ||
313 | map_page_to_frame((__address) ioa->io_apic, (__address) ioa->io_apic, PAGE_NOT_CACHEABLE, 0); |
313 | map_page_to_frame((__address) ioa->io_apic, (__address) ioa->io_apic, PAGE_NOT_CACHEABLE, 0); |
314 | 314 | ||
315 | io_apic = ioa->io_apic; |
315 | io_apic = ioa->io_apic; |
316 | } |
316 | } |
317 | 317 | ||
318 | //#define MPSCT_VERBOSE |
318 | //#define MPSCT_VERBOSE |
319 | void ct_io_intr_entry(struct __io_intr_entry *iointr) |
319 | void ct_io_intr_entry(struct __io_intr_entry *iointr) |
320 | { |
320 | { |
321 | #ifdef MPSCT_VERBOSE |
321 | #ifdef MPSCT_VERBOSE |
322 | switch (iointr->intr_type) { |
322 | switch (iointr->intr_type) { |
323 | case 0: printf("INT"); break; |
323 | case 0: printf("INT"); break; |
324 | case 1: printf("NMI"); break; |
324 | case 1: printf("NMI"); break; |
325 | case 2: printf("SMI"); break; |
325 | case 2: printf("SMI"); break; |
326 | case 3: printf("ExtINT"); break; |
326 | case 3: printf("ExtINT"); break; |
327 | } |
327 | } |
328 | putchar(','); |
328 | putchar(','); |
329 | switch (iointr->poel&3) { |
329 | switch (iointr->poel&3) { |
330 | case 0: printf("bus-like"); break; |
330 | case 0: printf("bus-like"); break; |
331 | case 1: printf("active high"); break; |
331 | case 1: printf("active high"); break; |
332 | case 2: printf("reserved"); break; |
332 | case 2: printf("reserved"); break; |
333 | case 3: printf("active low"); break; |
333 | case 3: printf("active low"); break; |
334 | } |
334 | } |
335 | putchar(','); |
335 | putchar(','); |
336 | switch ((iointr->poel>>2)&3) { |
336 | switch ((iointr->poel>>2)&3) { |
337 | case 0: printf("bus-like"); break; |
337 | case 0: printf("bus-like"); break; |
338 | case 1: printf("edge-triggered"); break; |
338 | case 1: printf("edge-triggered"); break; |
339 | case 2: printf("reserved"); break; |
339 | case 2: printf("reserved"); break; |
340 | case 3: printf("level-triggered"); break; |
340 | case 3: printf("level-triggered"); break; |
341 | } |
341 | } |
342 | putchar(','); |
342 | putchar(','); |
343 | printf("bus%d,irq%d", iointr->src_bus_id, iointr->src_bus_irq); |
343 | printf("bus%d,irq%d", iointr->src_bus_id, iointr->src_bus_irq); |
344 | putchar(','); |
344 | putchar(','); |
345 | printf("io_apic%d,pin%d", iointr->dst_io_apic_id, iointr->dst_io_apic_pin); |
345 | printf("io_apic%d,pin%d", iointr->dst_io_apic_id, iointr->dst_io_apic_pin); |
346 | putchar('\n'); |
346 | putchar('\n'); |
347 | #endif |
347 | #endif |
348 | } |
348 | } |
349 | 349 | ||
350 | void ct_l_intr_entry(struct __l_intr_entry *lintr) |
350 | void ct_l_intr_entry(struct __l_intr_entry *lintr) |
351 | { |
351 | { |
352 | #ifdef MPSCT_VERBOSE |
352 | #ifdef MPSCT_VERBOSE |
353 | switch (lintr->intr_type) { |
353 | switch (lintr->intr_type) { |
354 | case 0: printf("INT"); break; |
354 | case 0: printf("INT"); break; |
355 | case 1: printf("NMI"); break; |
355 | case 1: printf("NMI"); break; |
356 | case 2: printf("SMI"); break; |
356 | case 2: printf("SMI"); break; |
357 | case 3: printf("ExtINT"); break; |
357 | case 3: printf("ExtINT"); break; |
358 | } |
358 | } |
359 | putchar(','); |
359 | putchar(','); |
360 | switch (lintr->poel&3) { |
360 | switch (lintr->poel&3) { |
361 | case 0: printf("bus-like"); break; |
361 | case 0: printf("bus-like"); break; |
362 | case 1: printf("active high"); break; |
362 | case 1: printf("active high"); break; |
363 | case 2: printf("reserved"); break; |
363 | case 2: printf("reserved"); break; |
364 | case 3: printf("active low"); break; |
364 | case 3: printf("active low"); break; |
365 | } |
365 | } |
366 | putchar(','); |
366 | putchar(','); |
367 | switch ((lintr->poel>>2)&3) { |
367 | switch ((lintr->poel>>2)&3) { |
368 | case 0: printf("bus-like"); break; |
368 | case 0: printf("bus-like"); break; |
369 | case 1: printf("edge-triggered"); break; |
369 | case 1: printf("edge-triggered"); break; |
370 | case 2: printf("reserved"); break; |
370 | case 2: printf("reserved"); break; |
371 | case 3: printf("level-triggered"); break; |
371 | case 3: printf("level-triggered"); break; |
372 | } |
372 | } |
373 | putchar(','); |
373 | putchar(','); |
374 | printf("bus%d,irq%d", lintr->src_bus_id, lintr->src_bus_irq); |
374 | printf("bus%d,irq%d", lintr->src_bus_id, lintr->src_bus_irq); |
375 | putchar(','); |
375 | putchar(','); |
376 | printf("l_apic%d,pin%d", lintr->dst_l_apic_id, lintr->dst_l_apic_pin); |
376 | printf("l_apic%d,pin%d", lintr->dst_l_apic_id, lintr->dst_l_apic_pin); |
377 | putchar('\n'); |
377 | putchar('\n'); |
378 | #endif |
378 | #endif |
379 | } |
379 | } |
380 | 380 | ||
381 | void ct_extended_entries(void) |
381 | void ct_extended_entries(void) |
382 | { |
382 | { |
383 | __u8 *ext = (__u8 *) ct + ct->base_table_length; |
383 | __u8 *ext = (__u8 *) ct + ct->base_table_length; |
384 | __u8 *cur; |
384 | __u8 *cur; |
385 | 385 | ||
386 | for (cur = ext; cur < ext + ct->ext_table_length; cur += cur[CT_EXT_ENTRY_LEN]) { |
386 | for (cur = ext; cur < ext + ct->ext_table_length; cur += cur[CT_EXT_ENTRY_LEN]) { |
387 | switch (cur[CT_EXT_ENTRY_TYPE]) { |
387 | switch (cur[CT_EXT_ENTRY_TYPE]) { |
388 | default: |
388 | default: |
389 | printf("%L: skipping MP Configuration Table extended entry type %d\n", cur, cur[CT_EXT_ENTRY_TYPE]); |
389 | printf("%L: skipping MP Configuration Table extended entry type %d\n", cur, cur[CT_EXT_ENTRY_TYPE]); |
390 | break; |
390 | break; |
391 | } |
391 | } |
392 | } |
392 | } |
393 | } |
393 | } |
394 | 394 | ||
395 | 395 | ||
396 | /* |
396 | /* |
397 | * Kernel thread for bringing up application processors. It becomes clear |
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 |
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 |
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 |
400 | * BSP initialization (prior the very first call to scheduler()) will be used |
401 | * as an initialization stack for each AP.) |
401 | * as an initialization stack for each AP.) |
402 | */ |
402 | */ |
403 | void kmp(void *arg) |
403 | void kmp(void *arg) |
404 | { |
404 | { |
405 | struct __processor_entry *pr; |
405 | struct __processor_entry *pr; |
406 | __address src, dst; |
406 | __address src, dst; |
407 | __address frame; |
- | |
408 | int i; |
407 | int i; |
409 | 408 | ||
410 | waitq_initialize(&ap_completion_wq); |
409 | waitq_initialize(&ap_completion_wq); |
411 | 410 | ||
412 | /* |
411 | /* |
413 | * Processor entries immediately follow the configuration table header. |
412 | * Processor entries immediately follow the configuration table header. |
414 | */ |
413 | */ |
415 | pr = processor_entries; |
414 | pr = processor_entries; |
416 | 415 | ||
417 | /* |
416 | /* |
418 | * We need to access data in frame 0. |
417 | * We need to access data in frame 0. |
- | 418 | * We boldly make use of kernel address space mapping. |
|
419 | */ |
419 | */ |
420 | frame = frame_alloc(0); |
- | |
421 | map_page_to_frame(frame,0,PAGE_CACHEABLE,0); |
- | |
422 | 420 | ||
423 | /* |
421 | /* |
424 | * Set the warm-reset vector to the real-mode address of 4K-aligned ap_boot() |
422 | * Set the warm-reset vector to the real-mode address of 4K-aligned ap_boot() |
425 | */ |
423 | */ |
426 | *((__u16 *) (frame + 0x467+0)) = ((__address) ap_boot) >> 4; /* segment */ |
424 | *((__u16 *) (PA2KA(0x467+0))) = ((__address) ap_boot) >> 4; /* segment */ |
427 | *((__u16 *) (frame + 0x467+2)) = 0; /* offset */ |
425 | *((__u16 *) (PA2KA(0x467+2))) = 0; /* offset */ |
428 | - | ||
429 | /* |
- | |
430 | * Give back and unmap the borrowed frame. |
- | |
431 | */ |
- | |
432 | map_page_to_frame(frame,0,PAGE_NOT_PRESENT,0); |
- | |
433 | frame_free(frame); |
- | |
434 | 426 | ||
435 | /* |
427 | /* |
436 | * Save 0xa to address 0xf of the CMOS RAM. |
428 | * Save 0xa to address 0xf of the CMOS RAM. |
437 | * BIOS will not do the POST after the INIT signal. |
429 | * BIOS will not do the POST after the INIT signal. |
438 | */ |
430 | */ |
439 | outb(0x70,0xf); |
431 | outb(0x70,0xf); |
440 | outb(0x71,0xa); |
432 | outb(0x71,0xa); |
441 | 433 | ||
442 | cpu_priority_high(); |
434 | cpu_priority_high(); |
443 | 435 | ||
444 | pic_disable_irqs(0xffff); |
436 | pic_disable_irqs(0xffff); |
445 | apic_init(); |
437 | apic_init(); |
446 | 438 | ||
447 | for (i = 0; i < processor_entry_cnt; i++) { |
439 | for (i = 0; i < processor_entry_cnt; i++) { |
448 | struct descriptor *gdt_new; |
440 | struct descriptor *gdt_new; |
449 | 441 | ||
450 | /* |
442 | /* |
451 | * Skip processors marked unusable. |
443 | * Skip processors marked unusable. |
452 | */ |
444 | */ |
453 | if (pr[i].cpu_flags & (1<<0) == 0) |
445 | if (pr[i].cpu_flags & (1<<0) == 0) |
454 | continue; |
446 | continue; |
455 | 447 | ||
456 | /* |
448 | /* |
457 | * The bootstrap processor is already up. |
449 | * The bootstrap processor is already up. |
458 | */ |
450 | */ |
459 | if (pr[i].cpu_flags & (1<<1)) |
451 | if (pr[i].cpu_flags & (1<<1)) |
460 | continue; |
452 | continue; |
461 | 453 | ||
462 | if (pr[i].l_apic_id == l_apic_id()) { |
454 | if (pr[i].l_apic_id == l_apic_id()) { |
463 | printf("%L: bad processor entry #%d, will not send IPI to myself\n", &pr[i], i); |
455 | printf("%L: bad processor entry #%d, will not send IPI to myself\n", &pr[i], i); |
464 | continue; |
456 | continue; |
465 | } |
457 | } |
466 | 458 | ||
467 | /* |
459 | /* |
468 | * Prepare new GDT for CPU in question. |
460 | * Prepare new GDT for CPU in question. |
469 | */ |
461 | */ |
470 | if (!(gdt_new = (struct descriptor *) malloc(GDT_ITEMS*sizeof(struct descriptor)))) |
462 | if (!(gdt_new = (struct descriptor *) malloc(GDT_ITEMS*sizeof(struct descriptor)))) |
471 | panic("couldn't allocate memory for GDT\n"); |
463 | panic("couldn't allocate memory for GDT\n"); |
472 | 464 | ||
473 | memcopy(gdt, gdt_new, GDT_ITEMS*sizeof(struct descriptor)); |
465 | memcopy(gdt, gdt_new, GDT_ITEMS*sizeof(struct descriptor)); |
- | 466 | memsetb(&gdt_new[TSS_DES], sizeof(struct descriptor), 0); |
|
474 | gdtr.base = KA2PA((__address) gdt_new); |
467 | gdtr.base = KA2PA((__address) gdt_new); |
475 | 468 | ||
476 | if (l_apic_send_init_ipi(pr[i].l_apic_id)) { |
469 | if (l_apic_send_init_ipi(pr[i].l_apic_id)) { |
477 | /* |
470 | /* |
478 | * There may be just one AP being initialized at |
471 | * There may be just one AP being initialized at |
479 | * the time. After it comes completely up, it is |
472 | * the time. After it comes completely up, it is |
480 | * supposed to wake us up. |
473 | * supposed to wake us up. |
481 | */ |
474 | */ |
482 | waitq_sleep(&ap_completion_wq); |
475 | waitq_sleep(&ap_completion_wq); |
483 | cpu_priority_high(); |
476 | cpu_priority_high(); |
484 | } |
477 | } |
485 | else { |
478 | else { |
486 | printf("INIT IPI for l_apic%d failed\n", pr[i].l_apic_id); |
479 | printf("INIT IPI for l_apic%d failed\n", pr[i].l_apic_id); |
487 | } |
480 | } |
488 | } |
481 | } |
489 | 482 | ||
490 | /* |
483 | /* |
491 | * Wakeup the kinit thread so that |
484 | * Wakeup the kinit thread so that |
492 | * system initialization can go on. |
485 | * system initialization can go on. |
493 | */ |
486 | */ |
494 | waitq_wakeup(&kmp_completion_wq, WAKEUP_FIRST); |
487 | waitq_wakeup(&kmp_completion_wq, WAKEUP_FIRST); |
495 | } |
488 | } |
496 | 489 | ||
497 | int mps_irq_to_pin(int irq) |
490 | int mps_irq_to_pin(int irq) |
498 | { |
491 | { |
499 | int i; |
492 | int i; |
500 | 493 | ||
501 | for(i=0;i<io_intr_entry_cnt;i++) { |
494 | for(i=0;i<io_intr_entry_cnt;i++) { |
502 | if (io_intr_entries[i].src_bus_irq == irq && io_intr_entries[i].intr_type == 0) |
495 | if (io_intr_entries[i].src_bus_irq == irq && io_intr_entries[i].intr_type == 0) |
503 | return io_intr_entries[i].dst_io_apic_pin; |
496 | return io_intr_entries[i].dst_io_apic_pin; |
504 | } |
497 | } |
505 | 498 | ||
506 | return -1; |
499 | return -1; |
507 | } |
500 | } |
508 | 501 | ||
509 | #endif /* __SMP__ */ |
502 | #endif /* __SMP__ */ |
510 | 503 |