From: Will Deacon <will@kernel.org>
To: linux-kernel@vger.kernel.org
Cc: kernel-team@android.com, Will Deacon <will@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Peter Zijlstra <peterz@infradead.org>,
Nick Desaulniers <ndesaulniers@google.com>,
Matt Fleming <matt@codeblueprint.co.uk>,
sparclinux@vger.kernel.org
Subject: [PATCH 0/4] Rework sparc32 page-table layout
Date: Tue, 24 Mar 2020 10:40:01 +0000 [thread overview]
Message-ID: <20200324104005.11279-1-will@kernel.org> (raw)
Hi folks,
This series of patches reworks the sparc32 page-table layout so that
'pmd_t' no longer embeds an array of 16 physical pointers, which means
that we can finally enforce atomicity for accesses made using READ_ONCE():
https://lkml.kernel.org/r/20200123153341.19947-1-will@kernel.org
I've tested this with QEMU by booting Debian Etch. Please take a look!
Cheers,
Will
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: sparclinux@vger.kernel.org
--->8
Will Deacon (4):
sparc32: mm: Fix argument checking in __srmmu_get_nocache()
sparc32: mm: Restructure sparc32 MMU page-table layout
sparc32: mm: Change pgtable_t type to pte_t * instead of struct page *
sparc32: mm: Reduce allocation size for PMD and PTE tables
arch/sparc/include/asm/page_32.h | 12 ++--
arch/sparc/include/asm/pgalloc_32.h | 11 ++--
arch/sparc/include/asm/pgtable_32.h | 40 +++++++-----
arch/sparc/include/asm/pgtsrmmu.h | 36 +----------
arch/sparc/include/asm/viking.h | 5 +-
arch/sparc/kernel/head_32.S | 8 +--
arch/sparc/mm/hypersparc.S | 3 +-
arch/sparc/mm/srmmu.c | 95 ++++++++++-------------------
arch/sparc/mm/viking.S | 5 +-
9 files changed, 85 insertions(+), 130 deletions(-)
--
2.20.1
next reply other threads:[~2020-03-24 10:52 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-24 10:40 Will Deacon [this message]
2020-03-24 10:40 ` [PATCH 1/4] sparc32: mm: Fix argument checking in __srmmu_get_nocache() Will Deacon
2020-03-24 17:41 ` Nick Desaulniers
2020-03-24 17:51 ` Will Deacon
2020-03-24 18:04 ` Nick Desaulniers
2020-03-24 10:40 ` [PATCH 2/4] sparc32: mm: Restructure sparc32 MMU page-table layout Will Deacon
2020-03-24 10:40 ` [PATCH 3/4] sparc32: mm: Change pgtable_t type to pte_t * instead of struct page * Will Deacon
2020-03-24 10:40 ` [PATCH 4/4] sparc32: mm: Reduce allocation size for PMD and PTE tables Will Deacon
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=20200324104005.11279-1-will@kernel.org \
--to=will@kernel.org \
--cc=davem@davemloft.net \
--cc=kernel-team@android.com \
--cc=linux-kernel@vger.kernel.org \
--cc=matt@codeblueprint.co.uk \
--cc=ndesaulniers@google.com \
--cc=peterz@infradead.org \
--cc=sparclinux@vger.kernel.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).