ioremap64 and remap_page_range in 440GP

[Vishwanath]

Hi All,

In PPC Linux, to bring a particular IO page onto Linux addressing space, we
use ioremap64(). Is my understanding correct? If I want to map this remapped
address on user space, I have to use  remap_page_range() of kernel in my
driver.  remap_page_range() takes a 32-bit physical address as argument. But
in 440GP, all addresses are 36-bit with respect to processor. Is there any
64-bit equivalent of remap_page_range(). If it exists, how to use it?

Please help me out since I am stuck while mapping an external peripheral
registers onto user space.

Thanks in advance.

Regards,
vishwa

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