From: Scott Wood <scottwood@freescale.com>
To: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: <benh@kernel.crashing.org>, <paulus@samba.org>,
<mpe@ellerman.id.au>, <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [PATCH v3 00/31] powerpc/mm: Update page table format for book3s 64
Date: Mon, 12 Oct 2015 19:22:29 -0500 [thread overview]
Message-ID: <1444695749.5185.96.camel@freescale.com> (raw)
In-Reply-To: <1444675215-19484-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
On Tue, 2015-10-13 at 00:09 +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).
Acked-by: Scott Wood <scottwood@freescale.com>
-Scott
prev parent reply other threads:[~2015-10-13 0:22 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-12 18:39 [PATCH v3 00/31] powerpc/mm: Update page table format for book3s 64 Aneesh Kumar K.V
2015-10-12 18:39 ` [PATCH v3 01/31] powerpc/mm: move pte headers to book3s directory Aneesh Kumar K.V
2015-10-12 18:39 ` [PATCH v3 02/31] powerpc/mm: move pte headers to book3s directory (part 2) Aneesh Kumar K.V
2015-10-12 18:39 ` [PATCH v3 03/31] powerpc/mm: make a separate copy for book3s Aneesh Kumar K.V
2015-10-12 18:39 ` [PATCH v3 04/31] powerpc/mm: make a separate copy for book3s (part 2) Aneesh Kumar K.V
2015-10-12 18:39 ` [PATCH v3 05/31] powerpc/mm: Move hash specific pte width and other defines to book3s Aneesh Kumar K.V
2015-10-12 18:39 ` [PATCH v3 06/31] powerpc/mm: Delete booke bits from book3s Aneesh Kumar K.V
2015-10-12 18:39 ` [PATCH v3 07/31] powerpc/mm: Don't have generic headers introduce functions touching pte bits Aneesh Kumar K.V
2015-10-12 18:39 ` [PATCH v3 08/31] powerpc/mm: Drop pte-common.h from BOOK3S 64 Aneesh Kumar K.V
2015-10-12 18:39 ` [PATCH v3 09/31] powerpc/mm: Don't use pte_val as lvalue Aneesh Kumar K.V
2015-10-12 18:39 ` [PATCH v3 10/31] powerpc/mm: Don't use pmd_val, pud_val and pgd_val " Aneesh Kumar K.V
2015-10-13 5:10 ` [PATCH v3 10/31] powerpc/mm: Don't use pmd_val,pud_val " Michael Ellerman
2015-10-13 5:17 ` [PATCH v3 10/31] powerpc/mm: Don't use pmd_val, pud_val " Aneesh Kumar K.V
2015-10-13 5:23 ` Aneesh Kumar K.V
2015-10-13 5:31 ` [PATCH v3 10/31] powerpc/mm: Don't use pmd_val,pud_val " Michael Ellerman
2015-10-13 9:26 ` Michael Ellerman
2015-10-12 18:39 ` [PATCH v3 11/31] powerpc/mm: Move hash64 PTE bits from book3s/64/pgtable.h to hash.h Aneesh Kumar K.V
2015-10-12 18:39 ` [PATCH v3 12/31] powerpc/mm: Move PTE bits from generic functions to hash64 functions Aneesh Kumar K.V
2015-10-12 18:39 ` [PATCH v3 13/31] powerpc/booke: Move nohash headers (part 1) Aneesh Kumar K.V
2015-10-12 18:39 ` [PATCH v3 14/31] powerpc/booke: Move nohash headers (part 2) Aneesh Kumar K.V
2015-10-12 18:39 ` [PATCH v3 15/31] powerpc/booke: Move nohash headers (part 3) Aneesh Kumar K.V
2015-10-12 18:40 ` [PATCH v3 16/31] powerpc/booke: Move nohash headers (part 4) Aneesh Kumar K.V
2015-10-12 18:40 ` [PATCH v3 17/31] powerpc/booke: Move nohash headers (part 5) Aneesh Kumar K.V
2015-10-12 18:40 ` [PATCH v3 18/31] powerpc/mm: Increase the pte frag size Aneesh Kumar K.V
2015-10-12 18:40 ` [PATCH v3 19/31] powerpc/mm: Convert 4k hash insert to C Aneesh Kumar K.V
2015-10-12 18:40 ` [PATCH v3 20/31] powerpc/mm: update __real_pte to take address as argument Aneesh Kumar K.V
2015-10-12 18:40 ` [PATCH v3 21/31] powerpc/mm: make pte page hash index slot 8 bits Aneesh Kumar K.V
2015-10-12 18:40 ` [PATCH v3 22/31] powerpc/mm: Don't track subpage valid bit in pte_t Aneesh Kumar K.V
2015-10-12 18:40 ` [PATCH v3 23/31] powerpc/mm: Increase the width of #define Aneesh Kumar K.V
2015-10-12 18:40 ` [PATCH v3 24/31] powerpc/mm: Convert __hash_page_64K to C Aneesh Kumar K.V
2015-10-12 18:40 ` [PATCH v3 25/31] powerpc/mm: Convert 4k insert from asm " Aneesh Kumar K.V
2015-10-12 18:40 ` [PATCH v3 26/31] powerpc/mm: Remove the dependency on pte bit position in asm code Aneesh Kumar K.V
2015-10-12 18:40 ` [PATCH v3 27/31] powerpc/mm: Add helper for converting pte bit to hpte bits Aneesh Kumar K.V
2015-10-12 18:40 ` [PATCH v3 28/31] powerpc/mm: Move WIMG update to helper Aneesh Kumar K.V
2015-10-12 18:40 ` [PATCH v3 29/31] powerpc/mm: Move hugetlb related headers Aneesh Kumar K.V
2015-10-12 18:40 ` [PATCH v3 30/31] powerpc/mm: Move THP headers around Aneesh Kumar K.V
2015-10-12 18:40 ` [PATCH v3 31/31] powerpc/mm: Add a _PAGE_PTE bit Aneesh Kumar K.V
2015-10-13 0:22 ` Scott Wood [this message]
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