> >+ if (off == 0xfc000000) {
> >+ addr = 0x44000000;
> >+ len = 0x00400000;
> >+ flags |= VM_LOCKED;
> >+ }
> >+
> Why you need this? Shound' t X that should set these values at first?
because _my_ card has only a 2MB phsysical framebuffer ;) I wanted the
trick to work even without the direct cooperation of X.
VM_LOCKED is needed to keep the kernel from trying to dereference *pmd in
swap_out_vma(). (this problem is solved properly by pmd_only())
another tough question is, should we allow the mapping of 4M real physical
memory, and how can we get this in a sane way.
-- mingo
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