From: Tomasz Figa <tomasz.figa@gmail.com>
To: Kukjin Kim <kgene.kim@samsung.com>
Cc: 'Tomasz Figa' <t.figa@samsung.com>,
linux-samsung-soc@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, kyungmin.park@samsung.com,
jy0922.shim@samsung.com, thomas.abraham@linaro.org
Subject: Re: [PATCH v2 4/5] ARM: EXYNOS: Increase maximum possible memory bank size to 512MiB
Date: Sat, 08 Sep 2012 10:15:29 +0200 [thread overview]
Message-ID: <1796354.EpclCk5CFg@flatron> (raw)
In-Reply-To: <24dc01cd8d6b$7426cf50$5c746df0$%kim@samsung.com>
Hi Kgene,
On Saturday 08 of September 2012 11:41:31 Kukjin Kim wrote:
> Tomasz Figa wrote:
> > Some boards have larger memory banks than 256MiB. This patch increses
> > maximum bank size for Exynos-based boards to 512MiB.
>
> Well...the meaning of SECTION_SIZE_BITS is a little bit different you
> know.
>
> Please refer to following thread.
> http://lists.infradead.org/pipermail/linux-arm-kernel/2010-July/020184.ht
> ml
Well, I agree, but the effect of this patch is that it is possible to have
first bank (or rather section) up to 512MiB, in case of CONFIG_SPARSEMEM.
Still, we could go the other way and just define more smaller sections
instead and simply drop this patch. (Assuming that the correspondence of
sections and memory banks is irrelevant.)
--
Best regards,
Tomasz Figa
WARNING: multiple messages have this Message-ID (diff)
From: tomasz.figa@gmail.com (Tomasz Figa)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 4/5] ARM: EXYNOS: Increase maximum possible memory bank size to 512MiB
Date: Sat, 08 Sep 2012 10:15:29 +0200 [thread overview]
Message-ID: <1796354.EpclCk5CFg@flatron> (raw)
In-Reply-To: <24dc01cd8d6b$7426cf50$5c746df0$%kim@samsung.com>
Hi Kgene,
On Saturday 08 of September 2012 11:41:31 Kukjin Kim wrote:
> Tomasz Figa wrote:
> > Some boards have larger memory banks than 256MiB. This patch increses
> > maximum bank size for Exynos-based boards to 512MiB.
>
> Well...the meaning of SECTION_SIZE_BITS is a little bit different you
> know.
>
> Please refer to following thread.
> http://lists.infradead.org/pipermail/linux-arm-kernel/2010-July/020184.ht
> ml
Well, I agree, but the effect of this patch is that it is possible to have
first bank (or rather section) up to 512MiB, in case of CONFIG_SPARSEMEM.
Still, we could go the other way and just define more smaller sections
instead and simply drop this patch. (Assuming that the correspondence of
sections and memory banks is irrelevant.)
--
Best regards,
Tomasz Figa
next prev parent reply other threads:[~2012-09-08 8:15 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-04 8:50 [PATCH v2 0/5] ARM: EXYNOS: Add support for Trats board using device tree Tomasz Figa
2012-09-04 8:50 ` Tomasz Figa
2012-09-04 8:50 ` [PATCH v2 1/5] mmc: host: sdhci-s3c: Add broken-voltage DT property for broken voltage quirk Tomasz Figa
2012-09-04 8:50 ` Tomasz Figa
2012-09-05 8:36 ` Jaehoon Chung
2012-09-05 8:36 ` Jaehoon Chung
2012-09-19 5:42 ` Chris Ball
2012-09-19 5:42 ` Chris Ball
2012-09-19 10:13 ` Tomasz Figa
2012-09-19 10:13 ` Tomasz Figa
2012-09-19 10:24 ` Chris Ball
2012-09-19 10:24 ` Chris Ball
2012-09-19 10:34 ` Tomasz Figa
2012-09-19 10:34 ` Tomasz Figa
2012-09-19 10:47 ` Chris Ball
2012-09-19 10:47 ` Chris Ball
2012-09-19 10:49 ` Tomasz Figa
2012-09-19 10:49 ` Tomasz Figa
2012-09-19 11:02 ` Jaehoon Chung
2012-09-19 11:02 ` Jaehoon Chung
2012-09-19 14:39 ` Chris Ball
2012-09-19 14:39 ` Chris Ball
2012-09-20 5:57 ` Jaehoon Chung
2012-09-20 5:57 ` Jaehoon Chung
2012-09-04 8:50 ` [PATCH v2 2/5] ARM: Exynos4: dts: Specify address and size cells for i2c controllers Tomasz Figa
2012-09-04 8:50 ` Tomasz Figa
2012-09-05 3:58 ` Thomas Abraham
2012-09-05 3:58 ` Thomas Abraham
2012-09-08 2:37 ` Kukjin Kim
2012-09-08 2:37 ` Kukjin Kim
2012-09-04 8:50 ` [PATCH v2 3/5] ARM: Exynos4: Add OF compatibility lookups for Exynos4 i2c adapters Tomasz Figa
2012-09-04 8:50 ` Tomasz Figa
2012-09-05 3:59 ` Thomas Abraham
2012-09-05 3:59 ` Thomas Abraham
2012-09-08 2:38 ` Kukjin Kim
2012-09-08 2:38 ` Kukjin Kim
2012-09-04 8:50 ` [PATCH v2 4/5] ARM: EXYNOS: Increase maximum possible memory bank size to 512MiB Tomasz Figa
2012-09-04 8:50 ` Tomasz Figa
2012-09-08 2:41 ` Kukjin Kim
2012-09-08 2:41 ` Kukjin Kim
2012-09-08 8:15 ` Tomasz Figa [this message]
2012-09-08 8:15 ` Tomasz Figa
2012-09-04 8:50 ` [PATCH v2 5/5] ARM: Exynos: Add basic dts file for Samsung Trats board Tomasz Figa
2012-09-04 8:50 ` Tomasz Figa
2012-09-05 4:05 ` Thomas Abraham
2012-09-05 4:05 ` Thomas Abraham
2012-09-05 5:53 ` Tomasz Figa
2012-09-05 5:53 ` Tomasz Figa
2012-09-08 2:47 ` Kukjin Kim
2012-09-08 2:47 ` Kukjin Kim
2012-09-08 8:21 ` Tomasz Figa
2012-09-08 8:21 ` Tomasz Figa
2012-09-19 23:49 ` Kukjin Kim
2012-09-19 23:49 ` Kukjin Kim
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