I have been working on MMU of Linux Port of 2.4.20 kernel for MIPS Port.
I have found that MACROS like
#define __pa(x) ((unsigned long) (x) - PAGE_OFFSET)
#define __va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET))
#define virt_to_page(kaddr) (mem_map + (__pa(kaddr) >> PAGE_SHIFT))
These macros can handle memory pages in KSEG0. Any suggestions on how
can they be changed for addressing memory present in HIGHMEM. Since VA
will not be in linear relation with mem_map.
Rishabh Kumar Goel
SoCrates Software India Pvt. Ltd.
a TOSHIBA Group Company
#10, Industrial Layout,
III Block, Koramangala,
Bangalore - 560034
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