| /SPARTAN/trunk/src/proc/scheduler.c |
|---|
| 135,7 → 135,7 |
| spinlock_unlock(&r->lock); |
| continue; |
| } |
| /* avoid deadlock with relink_rq() */ |
| if (!spinlock_trylock(&CPU->lock)) { |
| /* |
| 412,6 → 412,9 |
| printf("cpu%d: tid %d (pri=%d,ticks=%d,nrdy=%d)\n", CPU->id, THREAD->tid, THREAD->pri, THREAD->ticks, CPU->nrdy); |
| #endif |
| /* |
| * Copy the knowledge of CPU, TASK, THREAD and preemption counter to thread's stack. |
| */ |
| the_copy(THE, (the_t *) THREAD->kstack); |
| context_restore(&THREAD->saved_context); |
| /SPARTAN/trunk/src/proc/thread.c |
|---|
| 75,9 → 75,9 |
| void (*f)(void *) = THREAD->thread_code; |
| void *arg = THREAD->thread_arg; |
| /* this is where each thread wakes up after its creation */ |
| before_thread_runs(); |
| /* this is where each thread wakes up after its creation */ |
| spinlock_unlock(&THREAD->lock); |
| cpu_priority_low(); |
| /SPARTAN/trunk/arch/mips/src/exception.c |
|---|
| 39,7 → 39,14 |
| __u32 epc; |
| __u32 epc_shift = 0; |
| pri_t pri; |
| /* |
| * NOTE ON OPERATION ORDERING |
| * |
| * On entry, cpu_priority_high() must be called before exception bit is cleared. |
| * On exit, exception bit must be set before cpu_priority_restore() is called. |
| */ |
| pri = cpu_priority_high(); |
| epc = cp0_epc_read(); |
| cp0_status_write(cp0_status_read() & ~ cp0_status_exl_exception_bit); |