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1 | /* |
1 | /* |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
2 | * Copyright (C) 2001-2004 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 | #include <proc/scheduler.h> |
29 | #include <proc/scheduler.h> |
30 | #include <proc/thread.h> |
30 | #include <proc/thread.h> |
31 | #include <proc/task.h> |
31 | #include <proc/task.h> |
32 | #include <mm/heap.h> |
32 | #include <mm/heap.h> |
33 | #include <mm/frame.h> |
33 | #include <mm/frame.h> |
34 | #include <mm/page.h> |
34 | #include <mm/page.h> |
35 | #include <arch/asm.h> |
35 | #include <arch/asm.h> |
36 | #include <arch.h> |
36 | #include <arch.h> |
37 | #include <synch/synch.h> |
37 | #include <synch/synch.h> |
38 | #include <synch/spinlock.h> |
38 | #include <synch/spinlock.h> |
39 | #include <synch/waitq.h> |
39 | #include <synch/waitq.h> |
40 | #include <synch/rwlock.h> |
40 | #include <synch/rwlock.h> |
41 | #include <cpu.h> |
41 | #include <cpu.h> |
42 | #include <func.h> |
42 | #include <func.h> |
43 | #include <context.h> |
43 | #include <context.h> |
44 | #include <list.h> |
44 | #include <list.h> |
45 | #include <typedefs.h> |
45 | #include <typedefs.h> |
46 | #include <time/clock.h> |
46 | #include <time/clock.h> |
47 | #include <list.h> |
47 | #include <list.h> |
48 | #include <config.h> |
48 | #include <config.h> |
49 | #include <arch/interrupt.h> |
49 | #include <arch/interrupt.h> |
50 | #include <smp/ipi.h> |
50 | #include <smp/ipi.h> |
51 | #include <arch/faddr.h> |
51 | #include <arch/faddr.h> |
52 | #include <arch/atomic.h> |
52 | #include <arch/atomic.h> |
53 | #include <memstr.h> |
53 | #include <memstr.h> |
54 | #include <print.h> |
54 | #include <print.h> |
55 | 55 | ||
56 | char *thread_states[] = {"Invalid", "Running", "Sleeping", "Ready", "Entering", "Exiting"}; /**< Thread states */ |
56 | char *thread_states[] = {"Invalid", "Running", "Sleeping", "Ready", "Entering", "Exiting"}; /**< Thread states */ |
57 | 57 | ||
58 | SPINLOCK_INITIALIZE(threads_lock); /**< Lock protecting threads_head list. For locking rules, see declaration thereof. */ |
58 | SPINLOCK_INITIALIZE(threads_lock); /**< Lock protecting threads_head list. For locking rules, see declaration thereof. */ |
59 | LIST_INITIALIZE(threads_head); /**< List of all threads. */ |
59 | LIST_INITIALIZE(threads_head); /**< List of all threads. */ |
60 | 60 | ||
61 | SPINLOCK_INITIALIZE(tidlock); |
61 | SPINLOCK_INITIALIZE(tidlock); |
62 | __u32 last_tid = 0; |
62 | __u32 last_tid = 0; |
63 | 63 | ||
64 | 64 | ||
65 | /** Thread wrapper |
65 | /** Thread wrapper |
66 | * |
66 | * |
67 | * This wrapper is provided to ensure that every thread |
67 | * This wrapper is provided to ensure that every thread |
68 | * makes a call to thread_exit() when its implementing |
68 | * makes a call to thread_exit() when its implementing |
69 | * function returns. |
69 | * function returns. |
70 | * |
70 | * |
71 | * interrupts_disable() is assumed. |
71 | * interrupts_disable() is assumed. |
72 | * |
72 | * |
73 | */ |
73 | */ |
74 | static void cushion(void) |
74 | static void cushion(void) |
75 | { |
75 | { |
76 | void (*f)(void *) = THREAD->thread_code; |
76 | void (*f)(void *) = THREAD->thread_code; |
77 | void *arg = THREAD->thread_arg; |
77 | void *arg = THREAD->thread_arg; |
78 | 78 | ||
79 | /* this is where each thread wakes up after its creation */ |
79 | /* this is where each thread wakes up after its creation */ |
80 | before_thread_runs(); |
80 | before_thread_runs(); |
81 | 81 | ||
82 | spinlock_unlock(&THREAD->lock); |
82 | spinlock_unlock(&THREAD->lock); |
83 | interrupts_enable(); |
83 | interrupts_enable(); |
84 | 84 | ||
85 | f(arg); |
85 | f(arg); |
86 | thread_exit(); |
86 | thread_exit(); |
87 | /* not reached */ |
87 | /* not reached */ |
88 | } |
88 | } |
89 | 89 | ||
90 | 90 | ||
91 | /** Initialize threads |
91 | /** Initialize threads |
92 | * |
92 | * |
93 | * Initialize kernel threads support. |
93 | * Initialize kernel threads support. |
94 | * |
94 | * |
95 | */ |
95 | */ |
96 | void thread_init(void) |
96 | void thread_init(void) |
97 | { |
97 | { |
98 | THREAD = NULL; |
98 | THREAD = NULL; |
99 | atomic_set(&nrdy,0); |
99 | atomic_set(&nrdy,0); |
100 | } |
100 | } |
101 | 101 | ||
102 | 102 | ||
103 | /** Make thread ready |
103 | /** Make thread ready |
104 | * |
104 | * |
105 | * Switch thread t to the ready state. |
105 | * Switch thread t to the ready state. |
106 | * |
106 | * |
107 | * @param t Thread to make ready. |
107 | * @param t Thread to make ready. |
108 | * |
108 | * |
109 | */ |
109 | */ |
110 | void thread_ready(thread_t *t) |
110 | void thread_ready(thread_t *t) |
111 | { |
111 | { |
112 | cpu_t *cpu; |
112 | cpu_t *cpu; |
113 | runq_t *r; |
113 | runq_t *r; |
114 | ipl_t ipl; |
114 | ipl_t ipl; |
115 | int i, avg; |
115 | int i, avg; |
116 | 116 | ||
117 | ipl = interrupts_disable(); |
117 | ipl = interrupts_disable(); |
118 | 118 | ||
119 | spinlock_lock(&t->lock); |
119 | spinlock_lock(&t->lock); |
120 | 120 | ||
121 | i = (t->priority < RQ_COUNT -1) ? ++t->priority : t->priority; |
121 | i = (t->priority < RQ_COUNT -1) ? ++t->priority : t->priority; |
122 | 122 | ||
123 | cpu = CPU; |
123 | cpu = CPU; |
124 | if (t->flags & X_WIRED) { |
124 | if (t->flags & X_WIRED) { |
125 | cpu = t->cpu; |
125 | cpu = t->cpu; |
126 | } |
126 | } |
127 | spinlock_unlock(&t->lock); |
127 | spinlock_unlock(&t->lock); |
128 | 128 | ||
129 | /* |
129 | /* |
130 | * Append t to respective ready queue on respective processor. |
130 | * Append t to respective ready queue on respective processor. |
131 | */ |
131 | */ |
132 | r = &cpu->rq[i]; |
132 | r = &cpu->rq[i]; |
133 | spinlock_lock(&r->lock); |
133 | spinlock_lock(&r->lock); |
134 | list_append(&t->rq_link, &r->rq_head); |
134 | list_append(&t->rq_link, &r->rq_head); |
135 | r->n++; |
135 | r->n++; |
136 | spinlock_unlock(&r->lock); |
136 | spinlock_unlock(&r->lock); |
137 | 137 | ||
138 | atomic_inc(&nrdy); |
138 | atomic_inc(&nrdy); |
139 | avg = atomic_get(&nrdy) / config.cpu_active; |
139 | avg = atomic_get(&nrdy) / config.cpu_active; |
140 | atomic_inc(&cpu->nrdy); |
140 | atomic_inc(&cpu->nrdy); |
141 | 141 | ||
142 | interrupts_restore(ipl); |
142 | interrupts_restore(ipl); |
143 | } |
143 | } |
144 | 144 | ||
145 | 145 | ||
146 | /** Create new thread |
146 | /** Create new thread |
147 | * |
147 | * |
148 | * Create a new thread. |
148 | * Create a new thread. |
149 | * |
149 | * |
150 | * @param func Thread's implementing function. |
150 | * @param func Thread's implementing function. |
151 | * @param arg Thread's implementing function argument. |
151 | * @param arg Thread's implementing function argument. |
152 | * @param task Task to which the thread belongs. |
152 | * @param task Task to which the thread belongs. |
153 | * @param flags Thread flags. |
153 | * @param flags Thread flags. |
154 | * |
154 | * |
155 | * @return New thread's structure on success, NULL on failure. |
155 | * @return New thread's structure on success, NULL on failure. |
156 | * |
156 | * |
157 | */ |
157 | */ |
158 | thread_t *thread_create(void (* func)(void *), void *arg, task_t *task, int flags) |
158 | thread_t *thread_create(void (* func)(void *), void *arg, task_t *task, int flags) |
159 | { |
159 | { |
160 | thread_t *t; |
160 | thread_t *t; |
161 | __address frame_ks, frame_us = NULL; |
161 | __address frame_ks, frame_us = NULL; |
162 | 162 | ||
163 | t = (thread_t *) malloc(sizeof(thread_t)); |
163 | t = (thread_t *) malloc(sizeof(thread_t)); |
164 | if (t) { |
164 | if (t) { |
165 | ipl_t ipl; |
165 | ipl_t ipl; |
166 | 166 | ||
167 | spinlock_initialize(&t->lock, "thread_t_lock"); |
167 | spinlock_initialize(&t->lock, "thread_t_lock"); |
168 | 168 | ||
169 | frame_ks = frame_alloc(FRAME_KA, ONE_FRAME, NULL, NULL); |
169 | frame_ks = frame_alloc(ONE_FRAME, FRAME_KA); |
170 | if (THREAD_USER_STACK & flags) { |
170 | if (THREAD_USER_STACK & flags) { |
171 | frame_us = frame_alloc(FRAME_KA, ONE_FRAME, NULL,NULL); |
171 | frame_us = frame_alloc(ONE_FRAME, FRAME_KA); |
172 | } |
172 | } |
173 | 173 | ||
174 | ipl = interrupts_disable(); |
174 | ipl = interrupts_disable(); |
175 | spinlock_lock(&tidlock); |
175 | spinlock_lock(&tidlock); |
176 | t->tid = ++last_tid; |
176 | t->tid = ++last_tid; |
177 | spinlock_unlock(&tidlock); |
177 | spinlock_unlock(&tidlock); |
178 | interrupts_restore(ipl); |
178 | interrupts_restore(ipl); |
179 | 179 | ||
180 | memsetb(frame_ks, THREAD_STACK_SIZE, 0); |
180 | memsetb(frame_ks, THREAD_STACK_SIZE, 0); |
181 | link_initialize(&t->rq_link); |
181 | link_initialize(&t->rq_link); |
182 | link_initialize(&t->wq_link); |
182 | link_initialize(&t->wq_link); |
183 | link_initialize(&t->th_link); |
183 | link_initialize(&t->th_link); |
184 | link_initialize(&t->threads_link); |
184 | link_initialize(&t->threads_link); |
185 | t->kstack = (__u8 *) frame_ks; |
185 | t->kstack = (__u8 *) frame_ks; |
186 | t->ustack = (__u8 *) frame_us; |
186 | t->ustack = (__u8 *) frame_us; |
187 | 187 | ||
188 | context_save(&t->saved_context); |
188 | context_save(&t->saved_context); |
189 | context_set(&t->saved_context, FADDR(cushion), (__address) t->kstack, THREAD_STACK_SIZE); |
189 | context_set(&t->saved_context, FADDR(cushion), (__address) t->kstack, THREAD_STACK_SIZE); |
190 | 190 | ||
191 | the_initialize((the_t *) t->kstack); |
191 | the_initialize((the_t *) t->kstack); |
192 | 192 | ||
193 | ipl = interrupts_disable(); |
193 | ipl = interrupts_disable(); |
194 | t->saved_context.ipl = interrupts_read(); |
194 | t->saved_context.ipl = interrupts_read(); |
195 | interrupts_restore(ipl); |
195 | interrupts_restore(ipl); |
196 | 196 | ||
197 | t->thread_code = func; |
197 | t->thread_code = func; |
198 | t->thread_arg = arg; |
198 | t->thread_arg = arg; |
199 | t->ticks = -1; |
199 | t->ticks = -1; |
200 | t->priority = -1; /* start in rq[0] */ |
200 | t->priority = -1; /* start in rq[0] */ |
201 | t->cpu = NULL; |
201 | t->cpu = NULL; |
202 | t->flags = 0; |
202 | t->flags = 0; |
203 | t->state = Entering; |
203 | t->state = Entering; |
204 | t->call_me = NULL; |
204 | t->call_me = NULL; |
205 | t->call_me_with = NULL; |
205 | t->call_me_with = NULL; |
206 | 206 | ||
207 | timeout_initialize(&t->sleep_timeout); |
207 | timeout_initialize(&t->sleep_timeout); |
208 | t->sleep_queue = NULL; |
208 | t->sleep_queue = NULL; |
209 | t->timeout_pending = 0; |
209 | t->timeout_pending = 0; |
210 | 210 | ||
211 | t->rwlock_holder_type = RWLOCK_NONE; |
211 | t->rwlock_holder_type = RWLOCK_NONE; |
212 | 212 | ||
213 | t->task = task; |
213 | t->task = task; |
214 | 214 | ||
215 | t->fpu_context_exists=0; |
215 | t->fpu_context_exists=0; |
216 | t->fpu_context_engaged=0; |
216 | t->fpu_context_engaged=0; |
217 | 217 | ||
218 | /* |
218 | /* |
219 | * Register this thread in the system-wide list. |
219 | * Register this thread in the system-wide list. |
220 | */ |
220 | */ |
221 | ipl = interrupts_disable(); |
221 | ipl = interrupts_disable(); |
222 | spinlock_lock(&threads_lock); |
222 | spinlock_lock(&threads_lock); |
223 | list_append(&t->threads_link, &threads_head); |
223 | list_append(&t->threads_link, &threads_head); |
224 | spinlock_unlock(&threads_lock); |
224 | spinlock_unlock(&threads_lock); |
225 | 225 | ||
226 | /* |
226 | /* |
227 | * Attach to the containing task. |
227 | * Attach to the containing task. |
228 | */ |
228 | */ |
229 | spinlock_lock(&task->lock); |
229 | spinlock_lock(&task->lock); |
230 | list_append(&t->th_link, &task->th_head); |
230 | list_append(&t->th_link, &task->th_head); |
231 | spinlock_unlock(&task->lock); |
231 | spinlock_unlock(&task->lock); |
232 | 232 | ||
233 | interrupts_restore(ipl); |
233 | interrupts_restore(ipl); |
234 | } |
234 | } |
235 | 235 | ||
236 | return t; |
236 | return t; |
237 | } |
237 | } |
238 | 238 | ||
239 | 239 | ||
240 | /** Make thread exiting |
240 | /** Make thread exiting |
241 | * |
241 | * |
242 | * End current thread execution and switch it to the exiting |
242 | * End current thread execution and switch it to the exiting |
243 | * state. All pending timeouts are executed. |
243 | * state. All pending timeouts are executed. |
244 | * |
244 | * |
245 | */ |
245 | */ |
246 | void thread_exit(void) |
246 | void thread_exit(void) |
247 | { |
247 | { |
248 | ipl_t ipl; |
248 | ipl_t ipl; |
249 | 249 | ||
250 | restart: |
250 | restart: |
251 | ipl = interrupts_disable(); |
251 | ipl = interrupts_disable(); |
252 | spinlock_lock(&THREAD->lock); |
252 | spinlock_lock(&THREAD->lock); |
253 | if (THREAD->timeout_pending) { /* busy waiting for timeouts in progress */ |
253 | if (THREAD->timeout_pending) { /* busy waiting for timeouts in progress */ |
254 | spinlock_unlock(&THREAD->lock); |
254 | spinlock_unlock(&THREAD->lock); |
255 | interrupts_restore(ipl); |
255 | interrupts_restore(ipl); |
256 | goto restart; |
256 | goto restart; |
257 | } |
257 | } |
258 | THREAD->state = Exiting; |
258 | THREAD->state = Exiting; |
259 | spinlock_unlock(&THREAD->lock); |
259 | spinlock_unlock(&THREAD->lock); |
260 | scheduler(); |
260 | scheduler(); |
261 | } |
261 | } |
262 | 262 | ||
263 | 263 | ||
264 | /** Thread sleep |
264 | /** Thread sleep |
265 | * |
265 | * |
266 | * Suspend execution of the current thread. |
266 | * Suspend execution of the current thread. |
267 | * |
267 | * |
268 | * @param sec Number of seconds to sleep. |
268 | * @param sec Number of seconds to sleep. |
269 | * |
269 | * |
270 | */ |
270 | */ |
271 | void thread_sleep(__u32 sec) |
271 | void thread_sleep(__u32 sec) |
272 | { |
272 | { |
273 | thread_usleep(sec*1000000); |
273 | thread_usleep(sec*1000000); |
274 | } |
274 | } |
275 | 275 | ||
276 | 276 | ||
277 | /** Thread usleep |
277 | /** Thread usleep |
278 | * |
278 | * |
279 | * Suspend execution of the current thread. |
279 | * Suspend execution of the current thread. |
280 | * |
280 | * |
281 | * @param usec Number of microseconds to sleep. |
281 | * @param usec Number of microseconds to sleep. |
282 | * |
282 | * |
283 | */ |
283 | */ |
284 | void thread_usleep(__u32 usec) |
284 | void thread_usleep(__u32 usec) |
285 | { |
285 | { |
286 | waitq_t wq; |
286 | waitq_t wq; |
287 | 287 | ||
288 | waitq_initialize(&wq); |
288 | waitq_initialize(&wq); |
289 | 289 | ||
290 | (void) waitq_sleep_timeout(&wq, usec, SYNCH_NON_BLOCKING); |
290 | (void) waitq_sleep_timeout(&wq, usec, SYNCH_NON_BLOCKING); |
291 | } |
291 | } |
292 | 292 | ||
293 | 293 | ||
294 | /** Register thread out-of-context invocation |
294 | /** Register thread out-of-context invocation |
295 | * |
295 | * |
296 | * Register a function and its argument to be executed |
296 | * Register a function and its argument to be executed |
297 | * on next context switch to the current thread. |
297 | * on next context switch to the current thread. |
298 | * |
298 | * |
299 | * @param call_me Out-of-context function. |
299 | * @param call_me Out-of-context function. |
300 | * @param call_me_with Out-of-context function argument. |
300 | * @param call_me_with Out-of-context function argument. |
301 | * |
301 | * |
302 | */ |
302 | */ |
303 | void thread_register_call_me(void (* call_me)(void *), void *call_me_with) |
303 | void thread_register_call_me(void (* call_me)(void *), void *call_me_with) |
304 | { |
304 | { |
305 | ipl_t ipl; |
305 | ipl_t ipl; |
306 | 306 | ||
307 | ipl = interrupts_disable(); |
307 | ipl = interrupts_disable(); |
308 | spinlock_lock(&THREAD->lock); |
308 | spinlock_lock(&THREAD->lock); |
309 | THREAD->call_me = call_me; |
309 | THREAD->call_me = call_me; |
310 | THREAD->call_me_with = call_me_with; |
310 | THREAD->call_me_with = call_me_with; |
311 | spinlock_unlock(&THREAD->lock); |
311 | spinlock_unlock(&THREAD->lock); |
312 | interrupts_restore(ipl); |
312 | interrupts_restore(ipl); |
313 | } |
313 | } |
314 | 314 | ||
315 | /** Print list of threads debug info */ |
315 | /** Print list of threads debug info */ |
316 | void thread_print_list(void) |
316 | void thread_print_list(void) |
317 | { |
317 | { |
318 | link_t *cur; |
318 | link_t *cur; |
319 | thread_t *t; |
319 | thread_t *t; |
320 | ipl_t ipl; |
320 | ipl_t ipl; |
321 | 321 | ||
322 | /* Messing with thread structures, avoid deadlock */ |
322 | /* Messing with thread structures, avoid deadlock */ |
323 | ipl = interrupts_disable(); |
323 | ipl = interrupts_disable(); |
324 | spinlock_lock(&threads_lock); |
324 | spinlock_lock(&threads_lock); |
325 | 325 | ||
326 | for (cur=threads_head.next; cur!=&threads_head; cur=cur->next) { |
326 | for (cur=threads_head.next; cur!=&threads_head; cur=cur->next) { |
327 | t = list_get_instance(cur, thread_t, threads_link); |
327 | t = list_get_instance(cur, thread_t, threads_link); |
328 | printf("Thr: %d(%s) ", t->tid, thread_states[t->state]); |
328 | printf("Thr: %d(%s) ", t->tid, thread_states[t->state]); |
329 | if (t->cpu) |
329 | if (t->cpu) |
330 | printf("cpu%d ", t->cpu->id); |
330 | printf("cpu%d ", t->cpu->id); |
331 | 331 | ||
332 | printf("\n"); |
332 | printf("\n"); |
333 | } |
333 | } |
334 | 334 | ||
335 | spinlock_unlock(&threads_lock); |
335 | spinlock_unlock(&threads_lock); |
336 | interrupts_enable(); |
336 | interrupts_enable(); |
337 | } |
337 | } |
338 | 338 |