On Tue, Oct 16, 2018 at 5:01 AM Guo Ren <[email protected]> wrote: > > This patch adds files related to memory management and here is our > memory-layout: > > Fixmap : 0xffc02000 – 0xfffff000 (4 MB - 12KB) > Pkmap : 0xff800000 – 0xffc00000 (4 MB) > Vmalloc : 0xf0200000 – 0xff000000 (238 MB) > Lowmem : 0x80000000 – 0xc0000000 (1GB) > > abiv1 CPU (CK610) is VIPT cache and it doesn't support highmem. > abiv2 CPUs are all PIPT cache and they could support highmem. > > Lowmem is directly mapped by msa0 & msa1 reg, and we needn't setup > memory page table for it. > > Link:https://lore.kernel.org/lkml/[email protected]/ > Signed-off-by: Guo Ren <[email protected]> > Cc: Christoph Hellwig <[email protected]> > Cc: Arnd Bergmann <[email protected]>
Reviewed-by: Arnd Bergmann <[email protected]> Christoph had all the useful comments on this one, I just checked that I didn't spot anything beyond that. Arnd
