All of lore.kernel.org
 help / color / mirror / Atom feed
From: Arnd Bergmann <arnd@arndb.de>
To: linux-arm-kernel@lists.infradead.org
Cc: Tomasz Figa <t.figa@samsung.com>,
	Sachin Kamat <sachin.kamat@linaro.org>,
	kgene.kim@samsung.com, linux-samsung-soc@vger.kernel.org
Subject: Re: [PATCH 5/6] ARM: EXYNOS: Enable multi-platform build support
Date: Wed, 16 Apr 2014 16:31:54 +0200	[thread overview]
Message-ID: <4516298.kO98TB1Ozz@wuerfel> (raw)
In-Reply-To: <534E8AE1.4010402@samsung.com>

On Wednesday 16 April 2014 15:51:29 Tomasz Figa wrote:
> On 15.04.2014 11:28, Sachin Kamat wrote:
> > From: Arnd Bergmann <arnd@arndb.de>
> >
> > This makes it possible to enable the exynos platform as part of a
> > multiplatform kernel, in addition to keeping the single-platform
> > Exynos support.
> > sparsemem is currently not supported in multiplatform.
> 
> Is this still true as of today?
> 
> Otherwise looks fine.

sparsemem is still not supported in multiplatform, but after I looked
at it in more detail, I came to the conclusion that there is no
reason why it couldn't be. It just needs testing so we are confident
that it doesn't break other platforms, and we need to find good
platform-independent values for MAX_PHYSMEM_BITS and SECTION_SIZE_BITS
to put into asm/memory.h, since we can't have them set in mach/memory.h
for multiplatform.

Looking at my patch again now, I would actually prefer to kill off
the single-platform support for exynos right away. I don't see
any reason to keep it now, and it complicates the test matrix.

	Arnd

WARNING: multiple messages have this Message-ID (diff)
From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 5/6] ARM: EXYNOS: Enable multi-platform build support
Date: Wed, 16 Apr 2014 16:31:54 +0200	[thread overview]
Message-ID: <4516298.kO98TB1Ozz@wuerfel> (raw)
In-Reply-To: <534E8AE1.4010402@samsung.com>

On Wednesday 16 April 2014 15:51:29 Tomasz Figa wrote:
> On 15.04.2014 11:28, Sachin Kamat wrote:
> > From: Arnd Bergmann <arnd@arndb.de>
> >
> > This makes it possible to enable the exynos platform as part of a
> > multiplatform kernel, in addition to keeping the single-platform
> > Exynos support.
> > sparsemem is currently not supported in multiplatform.
> 
> Is this still true as of today?
> 
> Otherwise looks fine.

sparsemem is still not supported in multiplatform, but after I looked
at it in more detail, I came to the conclusion that there is no
reason why it couldn't be. It just needs testing so we are confident
that it doesn't break other platforms, and we need to find good
platform-independent values for MAX_PHYSMEM_BITS and SECTION_SIZE_BITS
to put into asm/memory.h, since we can't have them set in mach/memory.h
for multiplatform.

Looking at my patch again now, I would actually prefer to kill off
the single-platform support for exynos right away. I don't see
any reason to keep it now, and it complicates the test matrix.

	Arnd

  reply	other threads:[~2014-04-16 14:32 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-15  9:28 [PATCH v2 0/6] Further cleanup and enable multiplat build Sachin Kamat
2014-04-15  9:28 ` Sachin Kamat
2014-04-15  9:28 ` [PATCH 1/6] ARM: EXYNOS: Remove duplicate lines in Makefile Sachin Kamat
2014-04-15  9:28   ` Sachin Kamat
2014-04-15  9:28 ` [PATCH 2/6] ARM: EXYNOS: Remove exynos_subsys registration Sachin Kamat
2014-04-15  9:28   ` Sachin Kamat
2014-04-15  9:28 ` [PATCH 3/6] ARM: EXYNOS: Migrate Exynos specific macros from plat to mach Sachin Kamat
2014-04-15  9:28   ` Sachin Kamat
2014-04-15  9:28 ` [PATCH 4/6] ARM: EXYNOS: Remove unnecessary inclusion of cpu.h Sachin Kamat
2014-04-15  9:28   ` Sachin Kamat
2014-04-15  9:28 ` [PATCH 5/6] ARM: EXYNOS: Enable multi-platform build support Sachin Kamat
2014-04-15  9:28   ` Sachin Kamat
2014-04-16 13:51   ` Tomasz Figa
2014-04-16 13:51     ` Tomasz Figa
2014-04-16 14:31     ` Arnd Bergmann [this message]
2014-04-16 14:31       ` Arnd Bergmann
2014-04-16 14:48       ` Tomasz Figa
2014-04-16 14:48         ` Tomasz Figa
2014-04-16 14:55         ` Thomas Abraham
2014-04-16 14:55           ` Thomas Abraham
2014-04-16 14:58           ` Tomasz Figa
2014-04-16 14:58             ` Tomasz Figa
2014-04-16 18:14             ` Arnd Bergmann
2014-04-16 18:14               ` Arnd Bergmann
2014-04-16 20:50               ` Mark Brown
2014-04-16 20:50                 ` Mark Brown
2014-04-16 21:00                 ` Arnd Bergmann
2014-04-16 21:00                   ` Arnd Bergmann
2014-04-22  3:06   ` Olof Johansson
2014-04-22  3:06     ` Olof Johansson
2014-04-22 19:56     ` Arnd Bergmann
2014-04-22 19:56       ` Arnd Bergmann
2014-05-13  4:37       ` Kukjin Kim
2014-05-13  4:37         ` Kukjin Kim
2014-05-13  9:15         ` Arnd Bergmann
2014-05-13  9:15           ` Arnd Bergmann
2014-05-13 18:01           ` Olof Johansson
2014-05-13 18:01             ` Olof Johansson
2014-05-14  4:33             ` Kukjin Kim
2014-05-14  4:33               ` Kukjin Kim
2014-04-15  9:28 ` [PATCH 6/6] ARM: multi_v7_defconfig: Enable Exynos platform Sachin Kamat
2014-04-15  9:28   ` Sachin Kamat
2014-04-16 13:51 ` [PATCH v2 0/6] Further cleanup and enable multiplat build Tomasz Figa
2014-04-16 13:51   ` Tomasz Figa
2014-05-04 15:35   ` Sachin Kamat
2014-05-04 15:35     ` Sachin Kamat
2014-05-12 22:30     ` Kukjin Kim
2014-05-12 22:30       ` Kukjin Kim
  -- strict thread matches above, loose matches on Subject: below --
2014-04-10  8:24 [PATCH " Sachin Kamat
2014-04-10  8:24 ` [PATCH 5/6] ARM: EXYNOS: Enable multi-platform build support Sachin Kamat
2014-04-10  8:24   ` Sachin Kamat

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=4516298.kO98TB1Ozz@wuerfel \
    --to=arnd@arndb.de \
    --cc=kgene.kim@samsung.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-samsung-soc@vger.kernel.org \
    --cc=sachin.kamat@linaro.org \
    --cc=t.figa@samsung.com \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.