Hi,everyone. I have some questions about the memory map on linux on 8xx and ppc 1)Some area eg BCSR mapped below KERNELBASE,is this safe? I check some process's vm area,it does not fall in this area,will it be unsafe under some circumstances? 2)I read mapin_ram() in mm/init.c ,found that phys mem is also mapped both by bat and page table ,what is this for? Can someone help me?
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