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/** Map memory-mapped device into virtual memory.
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/** Map memory-mapped device into virtual memory.
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 *
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 *
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 * We are currently using identity mapping for mapping device registers.
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 * We are currently using identity mapping for mapping device registers.
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 *
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 *
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 * @param physaddr  Physical address of the page where the device is
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 * @param physaddr Physical address of the page where the device is
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 *          located.
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 *                 located.
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 * @param size      Size of the device's registers. This argument is
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 * @param size     Size of the device's registers.
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 *          ignored.
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 *
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 * @return Virtual address of the page where the device is mapped.
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 *
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 *
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 * @return      Virtual address of the page where the device is mapped.
 - 
 
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 */
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 */
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uintptr_t hw_map(uintptr_t physaddr, size_t size)
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uintptr_t hw_map(uintptr_t physaddr, size_t size)
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{
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{
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    if (last_frame + ALIGN_UP(size, PAGE_SIZE) > KA2PA(KERNEL_ADDRESS_SPACE_END_ARCH))
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    if (last_frame + ALIGN_UP(size, PAGE_SIZE) > KA2PA(KERNEL_ADDRESS_SPACE_END_ARCH))
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        panic("Unable to map physical memory %p (%d bytes).", physaddr, size)
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        panic("Unable to map physical memory %p (%d bytes).", physaddr, size)