On Fri, Mar 11, 2005 at 10:55:43AM +0530, Rishabh@xxxxxxxxxxxx wrote: > I have been working on MMU of Linux Port of 2.4.20 kernel for MIPS Port. You may want to change to a kernel that has less than 52 months worth of bugs and security holes. > 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. That's normal for highmem. These macros will only work for lowmem. Ralf
