From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
To: Paul Mackerras <paulus@ozlabs.org>
Cc: benh@kernel.crashing.org, mpe@ellerman.id.au,
linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH V4 08/18] powerpc/mm: Copy pgalloc (part 1)
Date: Fri, 26 Feb 2016 07:41:45 +0530 [thread overview]
Message-ID: <8760xcjk4e.fsf@linux.vnet.ibm.com> (raw)
In-Reply-To: <20160225042731.GG18753@oak.ozlabs.ibm.com>
Paul Mackerras <paulus@ozlabs.org> writes:
> On Tue, Feb 23, 2016 at 10:18:10AM +0530, Aneesh Kumar K.V wrote:
>> This patch make a copy of pgalloc routines for book3s. The idea is to
>> enable a hash64 copy of these pgalloc routines which can be later
>> updated to have a radix conditional. Radix introduce a new page table
>> format with different page table size.
>>
>> This mostly does:
>>
>> cp pgalloc-32.h book3s/32/pgalloc.h
>> cp pgalloc-64.h book3s/64/pgalloc.h
>
> What is the motivation for copying over the 32-bit header?
That was moved, because I was looking to consolidate all book3s headers
under book3s/ and wanted to move pgalloc-64.h to book3s.
>
> Regarding the 64-bit header, I don't see anything in it that will need
> to be changed for radix other than making P{G,U,M}D_INDEX_SIZE be
> variables rather than constants (and possibly have a lowercase name
> instead of uppercase). What other changes are you expecting to make?
>
I was taking the approach of conditional call rather than variables. Hence
moved them to 64/pgalloc.h so that we can add a static inline for those.
-aneesh
next prev parent reply other threads:[~2016-02-26 2:22 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-23 4:48 [PATCH V4 00/18] Book3s abstraction in preparation for new MMU model Aneesh Kumar K.V
2016-02-23 4:48 ` [PATCH V4 01/18] powerp/mm: Update code comments Aneesh Kumar K.V
2016-02-23 4:48 ` [PATCH V4 02/18] mm: Some arch may want to use HPAGE_PMD related values as variables Aneesh Kumar K.V
2016-02-25 5:06 ` Balbir Singh
2016-02-23 4:48 ` [PATCH V4 03/18] powerpc/mm: add _PAGE_HASHPTE similar to 4K hash Aneesh Kumar K.V
2016-02-23 5:38 ` Paul Mackerras
2016-02-23 9:22 ` Aneesh Kumar K.V
2016-02-23 4:48 ` [PATCH V4 04/18] powerpc/mm: Split pgtable types to separate header Aneesh Kumar K.V
2016-02-25 3:12 ` Paul Mackerras
2016-02-25 5:35 ` Balbir Singh
2016-02-23 4:48 ` [PATCH V4 05/18] powerpc/mm: Don't have conditional defines for real_pte_t Aneesh Kumar K.V
2016-02-25 3:24 ` Paul Mackerras
2016-02-25 6:03 ` Balbir Singh
2016-02-23 4:48 ` [PATCH V4 06/18] powerpc/mm: Switch book3s 64 with 64K page size to 4 level page table Aneesh Kumar K.V
2016-02-25 3:39 ` Paul Mackerras
2016-02-26 2:07 ` Aneesh Kumar K.V
2016-02-23 4:48 ` [PATCH V4 07/18] powerpc/mm: Update masked bits for linux " Aneesh Kumar K.V
2016-02-25 3:41 ` Paul Mackerras
2016-02-26 2:08 ` Aneesh Kumar K.V
2016-02-23 4:48 ` [PATCH V4 08/18] powerpc/mm: Copy pgalloc (part 1) Aneesh Kumar K.V
2016-02-25 4:27 ` Paul Mackerras
2016-02-26 2:11 ` Aneesh Kumar K.V [this message]
2016-02-23 4:48 ` [PATCH V4 09/18] powerpc/mm: Copy pgalloc (part 2) Aneesh Kumar K.V
2016-02-23 4:48 ` [PATCH V4 10/18] powerpc/mm: Copy pgalloc (part 3) Aneesh Kumar K.V
2016-02-23 4:48 ` [PATCH V4 11/18] powerpc/mm: Hugetlbfs is book3s_64 and fsl_book3e (32 or 64) Aneesh Kumar K.V
2016-02-25 5:41 ` Paul Mackerras
2016-02-26 9:57 ` Aneesh Kumar K.V
2016-02-23 4:48 ` [PATCH V4 12/18] powerpc/mm: Use flush_tlb_page in ptep_clear_flush_young Aneesh Kumar K.V
2016-02-23 4:48 ` [PATCH V4 13/18] powerpc/mm: Move hash related mmu-*.h headers to book3s/ Aneesh Kumar K.V
2016-02-23 4:48 ` [PATCH V4 14/18] powerpc/mm: Create a new headers for tlbflush for hash64 Aneesh Kumar K.V
2016-02-23 4:48 ` [PATCH V4 15/18] powerpc/mm: Move hash page table related functions to pgtable-hash64.c Aneesh Kumar K.V
2016-02-25 4:32 ` Scott Wood
2016-02-26 10:00 ` Aneesh Kumar K.V
2016-02-23 4:48 ` [PATCH V4 16/18] powerpc/mm: THP is only available on hash64 as of now Aneesh Kumar K.V
2016-02-23 4:48 ` [PATCH V4 17/18] powerpc/mm: Use generic version of pmdp_clear_flush_young Aneesh Kumar K.V
2016-02-23 4:48 ` [PATCH V4 18/18] powerpc/mm: Move hash64 specific definitions to separate header Aneesh Kumar K.V
2016-02-23 9:26 ` [PATCH V4 00/18] Book3s abstraction in preparation for new MMU model Aneesh Kumar K.V
2016-02-25 4:34 ` Scott Wood
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