On Mon, 2015-09-21 at 12:10 +0530, Aneesh Kumar K.V wrote: > Hi All, > > This patch series attempt to update book3s 64 linux page table format to > make it more flexible. Our current pte format is very restrictive and we > overload multiple pte bits. This is due to the non-availability of free bits > in pte_t. We use pte_t to track the validity of 4K subpages. This patch > series free up pte_t of 11 bits by moving 4K subpage tracking to the > lower half of PTE page. The pte format is updated such that we have a > better method for identifying a pte entry at pmd level. This will also > enable > us to implement hugetlb migration(not yet done in this series). > > Before making the changes to the pte format, I am splitting the > pte header definition such that we now have the below layout for headers > > book3s > 32 > hash.h pgtable.h > 64 > hash.h pgtable.h hash-4k.h hash-64k.h > booke > 32 > pgtable.h pte-40x.h pte-44x.h pte-8xx.h pte-fsl-booke.h > 64 > pgtable-4k.h pgtable-64k.h pgtable.h
40x and 8xx are not booke. Is there a better name that can be used for this directory? Maybe "nohash", similar to arch/powerpc/mm/tlb_nohash.c? -Scott _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
