From: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
To: Christophe Leroy <christophe.leroy@c-s.fr>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
aneesh.kumar@linux.vnet.ibm.com
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v5 18/22] powerpc/mm: Extend pte_fragment functionality to nohash/32
Date: Wed, 26 Sep 2018 08:18:22 +0530 [thread overview]
Message-ID: <87in2tgeix.fsf@linux.ibm.com> (raw)
In-Reply-To: <cda95a5508594e2a2ad5f6f214c435d9a1b44c46.1537892499.git.christophe.leroy@c-s.fr>
Christophe Leroy <christophe.leroy@c-s.fr> writes:
> In order to allow the 8xx to handle pte_fragments, this patch
> extends the use of pte_fragments to nohash/32 platforms.
>
> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
> ---
> arch/powerpc/include/asm/mmu_context.h | 2 +-
> arch/powerpc/include/asm/nohash/32/mmu-40x.h | 1 +
> arch/powerpc/include/asm/nohash/32/mmu-44x.h | 1 +
> arch/powerpc/include/asm/nohash/32/mmu-8xx.h | 1 +
> arch/powerpc/include/asm/nohash/32/mmu.h | 4 ++-
> arch/powerpc/include/asm/nohash/32/pgalloc.h | 52 +++++++++++++---------------
> arch/powerpc/include/asm/nohash/32/pgtable.h | 11 ++++--
> arch/powerpc/include/asm/nohash/mmu-book3e.h | 1 +
> arch/powerpc/mm/Makefile | 3 ++
> arch/powerpc/mm/mmu_context_nohash.c | 14 ++++++++
> 10 files changed, 57 insertions(+), 33 deletions(-)
>
> diff --git a/arch/powerpc/include/asm/mmu_context.h b/arch/powerpc/include/asm/mmu_context.h
> index b2f89b621b15..7f2c37a3f99d 100644
> --- a/arch/powerpc/include/asm/mmu_context.h
> +++ b/arch/powerpc/include/asm/mmu_context.h
> @@ -222,7 +222,7 @@ static inline int arch_dup_mmap(struct mm_struct *oldmm,
> return 0;
> }
>
> -#ifndef CONFIG_PPC_BOOK3S_64
> +#if defined(CONFIG_PPC_BOOK3E_64) || defined(CONFIG_PPC_BOOK3S_32)
> static inline void arch_exit_mmap(struct mm_struct *mm)
> {
> }
Can we do that with #ifndef arch_exit_mmap? This should handle every
platform that doesn't use pte_frag right?
> diff --git a/arch/powerpc/include/asm/nohash/32/mmu-40x.h b/arch/powerpc/include/asm/nohash/32/mmu-40x.h
> index 74f4edb5916e..7c77ceed71d6 100644
> --- a/arch/powerpc/include/asm/nohash/32/mmu-40x.h
> +++ b/arch/powerpc/include/asm/nohash/32/mmu-40x.h
> @@ -58,6 +58,7 @@ typedef struct {
> unsigned int id;
> unsigned int active;
> unsigned long vdso_base;
-aneesh
next prev parent reply other threads:[~2018-09-26 2:48 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-25 16:50 [PATCH v5 00/22] Implement use of HW assistance on TLB table walk on 8xx Christophe Leroy
2018-09-25 16:50 ` [PATCH v5 01/22] Revert "powerpc/8xx: Use L1 entry APG to handle _PAGE_ACCESSED for CONFIG_SWAP" Christophe Leroy
2018-09-25 16:50 ` [PATCH v5 02/22] powerpc/code-patching: add a helper to get the address of a patch_site Christophe Leroy
2018-09-25 16:50 ` [PATCH v5 03/22] powerpc/8xx: Use patch_site for memory setup patching Christophe Leroy
2018-09-25 16:50 ` [PATCH v5 04/22] powerpc/8xx: Use patch_site for perf counters setup Christophe Leroy
2018-09-25 16:50 ` [PATCH v5 05/22] powerpc/8xx: Move SW perf counters in first 32kb of memory Christophe Leroy
2018-09-25 16:50 ` [PATCH v5 06/22] powerpc/8xx: Temporarily disable 16k pages and 512k hugepages Christophe Leroy
2018-09-25 16:50 ` [PATCH v5 07/22] powerpc/mm: Use hardware assistance in TLB handlers on the 8xx Christophe Leroy
2018-09-25 16:50 ` [PATCH v5 08/22] powerpc/mm: Enable 512k hugepage support with HW assistance " Christophe Leroy
2018-09-25 16:50 ` [PATCH v5 09/22] powerpc/8xx: don't use r12/SPRN_SPRG_SCRATCH2 in TLB Miss handlers Christophe Leroy
2018-09-25 16:50 ` [PATCH v5 10/22] powerpc/8xx: regroup TLB handler routines Christophe Leroy
2018-09-25 16:51 ` [PATCH v5 11/22] powerpc/mm: don't use pte_alloc_one_kernel() before slab is available Christophe Leroy
2018-09-25 16:51 ` [PATCH v5 12/22] powerpc/mm: inline pte_alloc_one() and pte_alloc_one_kernel() in PPC32 Christophe Leroy
2018-09-25 16:51 ` [PATCH v5 13/22] powerpc/book3s32: Remove CONFIG_BOOKE dependent code Christophe Leroy
2018-09-25 16:51 ` [PATCH v5 14/22] powerpc/mm: Move pte_fragment_alloc() to a common location Christophe Leroy
2018-09-26 2:43 ` Aneesh Kumar K.V
2018-09-25 16:51 ` [PATCH v5 15/22] powerpc/mm: Avoid useless lock with single page fragments Christophe Leroy
2018-09-26 2:43 ` Aneesh Kumar K.V
2018-09-25 16:51 ` [PATCH v5 16/22] powerpc/mm: move platform specific mmu-xxx.h in platform directories Christophe Leroy
2018-09-26 2:44 ` Aneesh Kumar K.V
2018-09-25 16:51 ` [PATCH v5 17/22] powerpc/mm: Move pgtable_t into platform headers Christophe Leroy
2018-09-26 2:44 ` Aneesh Kumar K.V
2018-09-25 16:51 ` [PATCH v5 18/22] powerpc/mm: Extend pte_fragment functionality to nohash/32 Christophe Leroy
2018-09-26 2:48 ` Aneesh Kumar K.V [this message]
2018-09-26 8:10 ` Christophe LEROY
2018-09-26 9:01 ` Aneesh Kumar K.V
2018-09-25 16:51 ` [PATCH v5 19/22] powerpc/8xx: Remove PTE_ATOMIC_UPDATES Christophe Leroy
2018-09-25 16:51 ` [PATCH v5 20/22] powerpc/mm: reintroduce 16K pages with HW assistance on 8xx Christophe Leroy
2018-09-25 16:51 ` [PATCH v5 21/22] powerpc/nohash32: allow setting GUARDED attribute in the PMD directly Christophe Leroy
2018-10-17 11:51 ` Christophe LEROY
2018-09-25 16:51 ` [PATCH v5 22/22] powerpc/8xx: set " Christophe Leroy
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87in2tgeix.fsf@linux.ibm.com \
--to=aneesh.kumar@linux.ibm.com \
--cc=aneesh.kumar@linux.vnet.ibm.com \
--cc=benh@kernel.crashing.org \
--cc=christophe.leroy@c-s.fr \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mpe@ellerman.id.au \
--cc=paulus@samba.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).