| 49,7 → 49,7 |
|---|
| |
| atomic_t nrdy; |
| |
| /** Take actions before new thread runs |
| /** Take actions before new thread runs. |
| * |
| * Perform actions that need to be |
| * taken before the newly selected |
| 77,6 → 77,20 |
|---|
| #endif |
| } |
| |
| /** Take actions after old thread ran. |
| * |
| * Perform actions that need to be |
| * taken after the running thread |
| * was preempted by the scheduler. |
| * |
| * THREAD->lock is locked on entry |
| * |
| */ |
| void after_thread_ran(void) |
| { |
| after_thread_ran_arch(); |
| } |
| |
| #ifdef CONFIG_FPU_LAZY |
| void scheduler_fpu_lazy_request(void) |
| { |
| 257,6 → 271,9 |
|---|
| ASSERT(CPU != NULL); |
| |
| if (THREAD) { |
| /* must be run after switch to scheduler stack */ |
| after_thread_ran(); |
| |
| switch (THREAD->state) { |
| case Running: |
| THREAD->state = Ready; |
| 300,6 → 317,7 |
|---|
| panic("tid%d: unexpected state %s\n", THREAD->tid, thread_states[THREAD->state]); |
| break; |
| } |
| |
| THREAD = NULL; |
| } |
| |
| 351,6 → 369,16 |
|---|
| #endif |
| |
| /* |
| * Some architectures provide late kernel PA2KA(identity) |
| * mapping in a page fault handler. However, the page fault |
| * handler uses the kernel stack of the running thread and |
| * therefore cannot be used to map it. The kernel stack, if |
| * necessary, is to be mapped in before_thread_runs(). This |
| * function must be executed before the switch to the new stack. |
| */ |
| before_thread_runs(); |
| |
| /* |
| * Copy the knowledge of CPU, TASK, THREAD and preemption counter to thread's stack. |
| */ |
| the_copy(THE, (the_t *) THREAD->kstack); |
| 387,7 → 415,6 |
|---|
| /* |
| * This is the place where threads leave scheduler(); |
| */ |
| before_thread_runs(); |
| spinlock_unlock(&THREAD->lock); |
| interrupts_restore(THREAD->saved_context.ipl); |
| return; |