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Rev 897 Rev 898
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    immu_disable();
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    immu_disable();
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    dmmu_disable();
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    dmmu_disable();
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    /*
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    /*
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     * Demap everything, especially OpenFirmware.
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     */
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    itlb_demap(TLB_DEMAP_CONTEXT, TLB_DEMAP_NUCLEUS, 0);
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    dtlb_demap(TLB_DEMAP_CONTEXT, TLB_DEMAP_NUCLEUS, 0);
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    /*
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     * We do identity mapping of 4M-page at 4M.
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     * We do identity mapping of 4M-page at 4M.
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     */
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     */
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    tag.value = ASID_KERNEL;
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    tag.value = ASID_KERNEL;
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    tag.vpn = pg.vpn;
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    tag.vpn = pg.vpn;
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