Date: Tue, 11 Apr 2017 12:33:35 +0100
From: Catalin Marinas <catalin.marinas@arm.com>
To: Yury Norov <ynorov@caviumnetworks.com>
Cc: linux-doc@vger.kernel.org,
        Andrew Pinski <Andrew.Pinski@caviumnetworks.com>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
        Chris Metcalf <cmetcalf@ezchip.com>,
        philipp.tomsich@theobroma-systems.com,
        Joseph Myers <joseph@codesourcery.com>, zhouchengming1@huawei.com,
        Steve Ellcey <sellcey@caviumnetworks.com>,
        Prasun.Kapoor@caviumnetworks.com, Andreas Schwab <schwab@suse.de>,
        agraf@suse.de, szabolcs.nagy@arm.com, geert@linux-m68k.org,
        Adam Borowski <kilobyte@angband.pl>, manuel.montezelo@gmail.com,
        Chris Metcalf <cmetcalf@mellanox.com>, Arnd Bergmann <arnd@arndb.de>,
        Andrew Pinski <pinskia@gmail.com>, linyongting@huawei.com,
        klimov.linux@gmail.com, broonie@kernel.org,
        Bamvor Zhangjian <bamvor.zhangjian@huawei.com>,
        linux-arm-kernel@lists.infradead.org,
        Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org>,
        Florian Weimer <fweimer@redhat.com>, Nathan_Lynch@mentor.com,
        linux-kernel@vger.kernel.org,
        Ramana Radhakrishnan <ramana.gcc@googlemail.com>,
        schwidefsky@de.ibm.com, davem@davemloft.net,
        christoph.muellner@theobroma-systems.com
Subject: Re: [PATCH v7 resend 00/20] ILP32 for ARM64
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On Mon, Apr 10, 2017 at 11:47:40PM +0400, Yury Norov wrote:
> According to latest plans figured out on Linaro Connect, ILP32 should
> be taken in 4.12 merge window.

Sorry, I wasn't present at Linaro Connect, so definitely not involved in
such decision.

BTW, it would be nice to have Arnd's ack on patch 2 (32-bit ABI:
introduce ARCH_32BIT_OFF_T config option).

> The window will be opened in less than a month, so I'd like to remind
> it to you, and ask if you have any questions/requests related to
> ILP32. Is it still realistic idea to take patches in 4.12? 

4.12 is not realistic and I wouldn't commit to a specific kernel
version. Given the intrusiveness, such patches should sit in -next for
at least 3-4 weeks (i.e. merged in the arch tree around -rc3).

Anyway, I don't think the plan has changed since last time I stated it:

https://lkml.org/lkml/2016/12/5/333

I haven't got the chance to test these patches yet, run benchmarks (step
4). Also, the latest benchmarks I've seen were mostly for user space
while I'm more concerned with the user-kernel interface
(https://marc.info/?l=linux-arm-kernel&m=148690490713310&w=2). Is there
an up to date pre-built toolchain and a filesystem for ILP32?

On the glibc testing side, have the regressions been identified/fixed?

-- 
Catalin