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It's wrong to mask/unmask highest bit in addr to translate the vaddr
to paddr. We should use PAGE_OFFSET and PHYS_OFFSET.
Wrong implement:
return ((get_pgd()|(1<<31)) - PHYS_OFFSET) & ~1;
When PHYS_OFFSET=0xc0000000 and get_pgd() return 0xe0000000, it'll
return 0x60000000. It's wrong and should be 0xa0000000.
Now correct it to:
return ((get_pgd() - PHYS_OFFSET) & ~1) + PAGE_OFFSET;
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
63e19c8216