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Rev 3022 Rev 4055
Line 77... Line 77...
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{
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{
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    void *faddr;
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    void *faddr;
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    faddr = frame_alloc(ONE_FRAME, FRAME_ATOMIC);
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    faddr = frame_alloc(ONE_FRAME, FRAME_ATOMIC);
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    if (!faddr)
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    if (!faddr)
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        panic("Cannot allocate page for clock");
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        panic("Cannot allocate page for clock.");
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    uptime = (uptime_t *) PA2KA(faddr);
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    uptime = (uptime_t *) PA2KA(faddr);
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    uptime->seconds1 = 0;
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    uptime->seconds1 = 0;
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    uptime->seconds2 = 0;
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    uptime->seconds2 = 0;
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    uptime->useconds = 0;
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    uptime->useconds = 0;
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    clock_parea.pbase = (uintptr_t) faddr;
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    clock_parea.pbase = (uintptr_t) faddr;
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    clock_parea.vbase = (uintptr_t) uptime;
 - 
 
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    clock_parea.frames = 1;
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    clock_parea.frames = 1;
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    clock_parea.cacheable = true;
 - 
 
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    ddi_parea_register(&clock_parea);
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    ddi_parea_register(&clock_parea);
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    /*
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    /*
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     * Prepare information for the userspace so that it can successfully
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     * Prepare information for the userspace so that it can successfully
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     * physmem_map() the clock_parea.
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     * physmem_map() the clock_parea.
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                THREAD->ticks = 0;
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                THREAD->ticks = 0;
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        }
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        }
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        spinlock_unlock(&THREAD->lock);
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        spinlock_unlock(&THREAD->lock);
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        if (!ticks && !PREEMPTION_DISABLED) {
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        if (!ticks && !PREEMPTION_DISABLED) {
- 
 
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#ifdef CONFIG_UDEBUG
- 
 
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            istate_t *istate;
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#endif
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            scheduler();
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            scheduler();
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#ifdef CONFIG_UDEBUG
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            /*
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             * Give udebug chance to stop the thread
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             * before it begins executing userspace code.
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             */
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            istate = THREAD->udebug.uspace_state;
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            if (istate && istate_from_uspace(istate))
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                udebug_before_thread_runs();
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#endif
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        }
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        }
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    }
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    }
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}
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}
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