Hi, On Thu, Dec 22, 2011 at 6:33 PM, J.Hwan Kim <frog1...@gmail.com> wrote: > Hi, everyone > > How can I allocated contiguous kernel memory over 128MB ? > When I use _get_free_pages() function, it returns error. > I guess the memory size is greater than the amount which the function > can allocate.
You can use bootmem to reserve the memory at boot time, and then use the bootmem allocator to alloocate from that reserved memory/ There is also some new code called CMA (Contiguous Memory Allocator) which hasn't hit the mainline yet, but it could also be used. See: http://lwn.net/Articles/468044/ for further details. -- Dave Hylands Shuswap, BC, Canada http://www.davehylands.com _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
