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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) >
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    if (last_frame + ALIGN_UP(size, PAGE_SIZE) >
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        KA2PA(KERNEL_ADDRESS_SPACE_END_ARCH))
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        KA2PA(KERNEL_ADDRESS_SPACE_END_ARCH))
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        panic("Unable to map physical memory %p (%" PRIs " bytes)",
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        panic("Unable to map physical memory %p (%" PRIs " bytes).",
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            physaddr, size)
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            physaddr, size)
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    uintptr_t virtaddr = PA2KA(last_frame);
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    uintptr_t virtaddr = PA2KA(last_frame);
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    pfn_t i;
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    pfn_t i;
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    for (i = 0; i < ADDR2PFN(ALIGN_UP(size, PAGE_SIZE)); i++)
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    for (i = 0; i < ADDR2PFN(ALIGN_UP(size, PAGE_SIZE)); i++)