From: Denis Kirjanov <kda@linux-powerpc.org>
To: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Scott Wood <scottwood@freescale.com>,
paulus@samba.org, linuxppc-dev@lists.ozlabs.org,
Mel Gorman <mgorman@suse.de>
Subject: Re: [PATCH V4 00/31] powerpc/mm: Update page table format for book3s 64
Date: Tue, 10 Nov 2015 11:28:57 +0300 [thread overview]
Message-ID: <CAOJe8K2NhFiaHdOSUnAmEh_MxinuTp=cAcCRAcjCyFPJN3hr6g@mail.gmail.com> (raw)
In-Reply-To: <87twp3u13i.fsf@linux.vnet.ibm.com>
On 11/3/15, Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> wrote:
> Denis Kirjanov <kda@linux-powerpc.org> writes:
>
>> On 10/23/15, Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> wrote:
>>> Denis Kirjanov <kda@linux-powerpc.org> writes:
>>>
>>>> On 10/17/15, Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> 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).
>>>>
>>>> Hi, what tree does this apply to?
>>>>
>>>
>>> linux-powerpc tree -next branch
>>>
>>> https://git.kernel.org/cgit/linux/kernel/git/powerpc/linux.git/
>>
>> Ok, but I'm getting the following error after applying the first patch
>> from your series:
>>
>> error: patch failed: arch/powerpc/include/asm/pgalloc-64.h:166
>> error: arch/powerpc/include/asm/pgalloc-64.h: patch does not apply
>> error: arch/powerpc/mm/hash64_64k.c: No such file or directory
>>
>> kda@hydra ~/devel/linux $ git branch
>> master
>> * next
>> kda@hydra ~/devel/linux $ git remote show origin
>> * remote origin
>> Fetch URL:
>> git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git
>> Push URL:
>> git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git
>>
>> Or am I missing something?
>
>
> Why not use
>
> The patch series can also be found at
> https://github.com/kvaneesh/linux.git book3s-pte-format
> https://github.com/kvaneesh/linux/commits/book3s-pte-format
I've started playing with your changes.
Also I want to run Mel Gorman's mm tests[0] but it needs some
work to adapt them to run.
Thanks!
[0] https://lwn.net/Articles/454121/
>
>
> -aneesh
>
> _______________________________________________
> Linuxppc-dev mailing list
> Linuxppc-dev@lists.ozlabs.org
> https://lists.ozlabs.org/listinfo/linuxppc-dev
next prev parent reply other threads:[~2015-11-10 8:28 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-17 10:08 [PATCH V4 00/31] powerpc/mm: Update page table format for book3s 64 Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 01/31] powerpc/mm: move pte headers to book3s directory Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 02/31] powerpc/mm: move pte headers to book3s directory (part 2) Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 03/31] powerpc/mm: make a separate copy for book3s Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 04/31] powerpc/mm: make a separate copy for book3s (part 2) Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 05/31] powerpc/mm: Move hash specific pte width and other defines to book3s Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 06/31] powerpc/mm: Delete booke bits from book3s Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 07/31] powerpc/mm: Don't have generic headers introduce functions touching pte bits Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 08/31] powerpc/mm: Drop pte-common.h from BOOK3S 64 Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 09/31] powerpc/mm: Don't use pte_val as lvalue Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 10/31] powerpc/mm: Don't use pmd_val, pud_val and pgd_val " Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 11/31] powerpc/mm: Move hash64 PTE bits from book3s/64/pgtable.h to hash.h Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 12/31] powerpc/mm: Move PTE bits from generic functions to hash64 functions Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 13/31] powerpc/booke: Move nohash headers (part 1) Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 14/31] powerpc/booke: Move nohash headers (part 2) Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 15/31] powerpc/booke: Move nohash headers (part 3) Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 16/31] powerpc/booke: Move nohash headers (part 4) Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 17/31] powerpc/booke: Move nohash headers (part 5) Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 18/31] powerpc/mm: Increase the pte frag size Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 19/31] powerpc/mm: Convert 4k hash insert to C Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 20/31] powerpc/mm: update __real_pte to take address as argument Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 21/31] powerpc/mm: make pte page hash index slot 8 bits Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 22/31] powerpc/mm: Don't track subpage valid bit in pte_t Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 23/31] powerpc/mm: Increase the width of #define Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 24/31] powerpc/mm: Convert __hash_page_64K to C Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 25/31] powerpc/mm: Convert 4k insert from asm " Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 26/31] powerpc/mm: Remove the dependency on pte bit position in asm code Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 27/31] powerpc/mm: Add helper for converting pte bit to hpte bits Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 28/31] powerpc/mm: Move WIMG update to helper Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 29/31] powerpc/mm: Move hugetlb related headers Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 30/31] powerpc/mm: Move THP headers around Aneesh Kumar K.V
2015-10-17 10:08 ` [PATCH V4 31/31] powerpc/mm: Add a _PAGE_PTE bit Aneesh Kumar K.V
2015-10-17 13:22 ` [PATCH V4 00/31] powerpc/mm: Update page table format for book3s 64 Benjamin Herrenschmidt
2015-10-19 3:17 ` Aneesh Kumar K.V
2015-10-19 8:31 ` Aneesh Kumar K.V
2015-10-22 18:40 ` Denis Kirjanov
2015-10-23 6:06 ` Aneesh Kumar K.V
2015-10-23 19:08 ` Denis Kirjanov
2015-11-03 5:02 ` Aneesh Kumar K.V
2015-11-10 8:28 ` Denis Kirjanov [this message]
2015-11-10 16:00 ` Aneesh Kumar K.V
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