| 268,27 → 268,11 |
|---|
| v->present.tag.tag_word = tag; |
| } |
| |
| extern uintptr_t last_frame; |
| |
| uintptr_t hw_map(uintptr_t physaddr, size_t size) |
| uintptr_t hw_map(uintptr_t physaddr, size_t size __attribute__ ((unused))) |
| { |
| if (last_frame + ALIGN_UP(size, PAGE_SIZE) > |
| KA2PA(KERNEL_ADDRESS_SPACE_END_ARCH)) |
| panic("Unable to map physical memory %p (%d bytes)", physaddr, |
| size) |
| |
| uintptr_t virtaddr = PA2KA(last_frame); |
| pfn_t i; |
| for (i = 0; i < ADDR2PFN(ALIGN_UP(size, PAGE_SIZE)); i++) { |
| uintptr_t addr = PFN2ADDR(i); |
| page_mapping_insert(AS_KERNEL, virtaddr + addr, physaddr + addr, |
| PAGE_NOT_CACHEABLE | PAGE_WRITE); |
| /* This is a dirty hack. */ |
| return PA2KA(physaddr); |
| } |
| |
| last_frame = ALIGN_UP(last_frame + size, FRAME_SIZE); |
| |
| return virtaddr; |
| } |
| |
| /** @} |
| */ |