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Rev 1731 Rev 1780
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 * @param ioaddr Startign I/O space address.
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 * @param ioaddr Startign I/O space address.
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 * @param size Size of the enabled I/O range.
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 * @param size Size of the enabled I/O range.
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 *
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 *
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 * @return 0 on success or an error code from errno.h.
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 * @return 0 on success or an error code from errno.h.
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 */
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 */
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int ddi_iospace_enable_arch(task_t *task, __address ioaddr, size_t size)
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int ddi_iospace_enable_arch(task_t *task, uintptr_t ioaddr, size_t size)
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{
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{
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    count_t bits;
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    count_t bits;
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    bits = ioaddr + size;
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    bits = ioaddr + size;
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    if (bits > IO_PORTS)
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    if (bits > IO_PORTS)
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        return ENOENT;
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        return ENOENT;
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    if (task->arch.iomap.bits < bits) {
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    if (task->arch.iomap.bits < bits) {
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        bitmap_t oldiomap;
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        bitmap_t oldiomap;
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        __u8 *newmap;
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        uint8_t *newmap;
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        /*
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        /*
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         * The I/O permission bitmap is too small and needs to be grown.
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         * The I/O permission bitmap is too small and needs to be grown.
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         */
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         */
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        newmap = (__u8 *) malloc(BITS2BYTES(bits), FRAME_ATOMIC);
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        newmap = (uint8_t *) malloc(BITS2BYTES(bits), FRAME_ATOMIC);
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        if (!newmap)
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        if (!newmap)
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            return ENOMEM;
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            return ENOMEM;
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        bitmap_initialize(&oldiomap, task->arch.iomap.map, task->arch.iomap.bits);
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        bitmap_initialize(&oldiomap, task->arch.iomap.map, task->arch.iomap.bits);
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        bitmap_initialize(&task->arch.iomap, newmap, bits);
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        bitmap_initialize(&task->arch.iomap, newmap, bits);