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 * Map device into kernel space.
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 * Map device into kernel space.
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 *
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 *
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 * This function adds mapping of physical address that is read/write only
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 * This function adds mapping of physical address that is read/write only
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 *  from kernel and not bufferable.
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 *  from kernel and not bufferable.
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 *
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 *
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 * \param physaddr Physical addres where device is connected
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 * @param physaddr Physical addres where device is connected
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 * \param size Length of area where device is present
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 * @param size Length of area where device is present
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 * \return Virtual address where device will be accessable
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 * @return Virtual address where device will be accessable
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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)