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Rev 727 Rev 740
Line 52... Line 52...
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    CPU->tlb_active = 0;
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    CPU->tlb_active = 0;
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    spinlock_lock(&tlblock);
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    spinlock_lock(&tlblock);
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    /*
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    /*
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     * TODO: assemble shootdown message.
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     * TODO: wrap parameters into a message and
- 
 
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     * dispatch it to all CPUs excluding this one.
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     */
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     */
- 
 
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    tlb_shootdown_ipi_send();
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    tlb_shootdown_ipi_send();
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    switch (type) {
 - 
 
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        case TLB_INVL_ALL:
 - 
 
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        tlb_invalidate_all();
 - 
 
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        break;
 - 
 
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        case TLB_INVL_ASID:
 - 
 
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        tlb_invalidate_asid(asid);
 - 
 
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        break;
 - 
 
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        case TLB_INVL_PAGES:
 - 
 
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        tlb_invalidate_pages(asid, page, cnt);
 - 
 
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        break;
 - 
 
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        default:
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        panic("unknown tlb_invalidate_type_t value: %d\n", type);
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        break;
 - 
 
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    }
 - 
 
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 - 
 
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busy_wait: 
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busy_wait: 
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    for (i = 0; i<config.cpu_count; i++)
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    for (i = 0; i<config.cpu_count; i++)
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        if (cpus[i].tlb_active)
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        if (cpus[i].tlb_active)
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            goto busy_wait;
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            goto busy_wait;
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}
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}
Line 93... Line 80...
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void tlb_shootdown_ipi_recv(void)
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void tlb_shootdown_ipi_recv(void)
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{
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{
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    CPU->tlb_active = 0;
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    CPU->tlb_active = 0;
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    spinlock_lock(&tlblock);
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    spinlock_lock(&tlblock);
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    spinlock_unlock(&tlblock);
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    spinlock_unlock(&tlblock);
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    tlb_invalidate_all();   /* TODO: use valid ASID */
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    tlb_invalidate_all();   /* TODO: be more finer-grained in what to invalidate */
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    CPU->tlb_active = 1;
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    CPU->tlb_active = 1;
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}
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}
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#endif /* CONFIG_SMP */
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#endif /* CONFIG_SMP */