From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
To: benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
Scott Wood <scottwood@freescale.com>,
Denis Kirjanov <kda@linux-powerpc.org>
Cc: linuxppc-dev@lists.ozlabs.org,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Subject: [PATCH V2 00/10] Reduce the pte framgment size.
Date: Mon, 23 Nov 2015 16:03:35 +0530 [thread overview]
Message-ID: <1448274825-30289-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> (raw)
Hi,
This patch series update 4k subpage tracking in pte page, thereby reducing
the ptefragment size. This results in us allocating less number of
pgtable_t for an application. One of the side effect is that we now make
and hcall to find out whether a 4k subpage is present in the hash page table or not.
We try to optmize that in patch "powerpc/mm: Optmize the hashed subpage iteration"
Changes from V1:
* rebased on top of 4.3 + change pte format series
* Use H_READ_4 so that we read 4 hpte slot information in single hcall.
Aneesh Kumar K.V (10):
powerpc/mm: Don't hardcode page table size
powerpc/mm: Don't hardcode the hash pte slot shift
powerpc/nohash: Update 64K nohash config to have 32 pte fragement
powerpc/nohash: we don't use real_pte_t for nohash
powerpc/mm: Use H_READ with H_READ_4
powerpc/mm: Don't track 4k subpage information with 64k linux page
size
powerpc/mm: update PTE frag size
powerpc/mm: Update pte_iterate_hashed_subpages args
powerpc/mm: Drop real_pte_t usage
powerpc/mm: Optmize the hashed subpage iteration
arch/powerpc/include/asm/book3s/64/hash-64k.h | 82 ++++++++-----------
arch/powerpc/include/asm/book3s/64/pgtable.h | 35 ++++----
arch/powerpc/include/asm/machdep.h | 1 +
arch/powerpc/include/asm/nohash/64/pgtable-64k.h | 21 ++++-
arch/powerpc/include/asm/nohash/64/pgtable.h | 33 --------
arch/powerpc/include/asm/page.h | 15 ----
arch/powerpc/include/asm/pgalloc-64.h | 10 ---
arch/powerpc/include/asm/plpar_wrappers.h | 17 ++++
arch/powerpc/include/asm/tlbflush.h | 4 +-
arch/powerpc/mm/hash64_64k.c | 100 ++++++++++++++---------
arch/powerpc/mm/hash_native_64.c | 55 +++++++++++--
arch/powerpc/mm/hash_utils_64.c | 13 +--
arch/powerpc/mm/init_64.c | 7 +-
arch/powerpc/mm/pgtable_64.c | 6 +-
arch/powerpc/mm/tlb_hash64.c | 15 ++--
arch/powerpc/platforms/pseries/lpar.c | 90 +++++++++++++-------
16 files changed, 279 insertions(+), 225 deletions(-)
--
2.5.0
next reply other threads:[~2015-11-23 10:34 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-23 10:33 Aneesh Kumar K.V [this message]
2015-11-23 10:33 ` [PATCH V2 01/10] powerpc/mm: Don't hardcode page table size Aneesh Kumar K.V
2015-11-23 10:33 ` [PATCH V2 02/10] powerpc/mm: Don't hardcode the hash pte slot shift Aneesh Kumar K.V
2015-11-23 10:33 ` [PATCH V2 03/10] powerpc/nohash: Update 64K nohash config to have 32 pte fragement Aneesh Kumar K.V
2015-11-23 10:33 ` [PATCH V2 04/10] powerpc/nohash: we don't use real_pte_t for nohash Aneesh Kumar K.V
2015-11-23 10:33 ` [PATCH V2 05/10] powerpc/mm: Use H_READ with H_READ_4 Aneesh Kumar K.V
2015-11-23 10:33 ` [PATCH V2 06/10] powerpc/mm: Don't track 4k subpage information with 64k linux page size Aneesh Kumar K.V
2015-11-23 10:33 ` [PATCH V2 07/10] powerpc/mm: update PTE frag size Aneesh Kumar K.V
2015-11-27 7:27 ` Aneesh Kumar K.V
2015-11-27 11:56 ` Aneesh Kumar K.V
2015-11-23 10:33 ` [PATCH V2 08/10] powerpc/mm: Update pte_iterate_hashed_subpages args Aneesh Kumar K.V
2015-11-23 10:33 ` [PATCH V2 09/10] powerpc/mm: Drop real_pte_t usage Aneesh Kumar K.V
2015-11-23 10:33 ` [PATCH V2 10/10] powerpc/mm: Optmize the hashed subpage iteration Aneesh Kumar K.V
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