On Thu, 21 Oct 2004 09:48:45 -0400 (EDT), sriram krishnamoorthy <krishnsr@xxxxxxxxxxxxxxxxxx> wrote: > I am interested in changing the linux kernel to use a different page size > (on PowerPC 440). What should I look for and how hard is it? You need to look in arch/ppc/mm and include/asm-ppc/pgtable.h As to how hard it is, I would say not as difficult as building the International Space Station or winning the X Prize, but sufficiently difficult that, unless you have experience with the TLB behaviours and workings of ppc (especially book E stuff) and are happy with playing with this stuff then it's not worth bothering. If you want to change the size then you'll need to go tramping over a range of stuff - but did you not just want to play with pinning the kernel in to memory with some larger mappings perhaps? That's already being done. I had to try to get 2.4.1<mumble> (various versions) working on ppc 4xx when it was broken for a time and only the Monta tree actually even built or ran. It was sufficiently non-trivial that I essentially waited for the Monta cleanups to go in to 2.4.21 or so. I use 2.4.23 happily now on work boards. Jon. -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
