From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomasz Figa Subject: Re: [PATCH] ARM: dts: fix split memory bank for SSDK5440 Date: Fri, 21 Dec 2012 00:18:39 +0100 Message-ID: <3158118.uctD3XVWRG@flatron> References: <1356030217-5472-1-git-send-email-kgene.kim@samsung.com> <1464138.NEt7mMkYJc@flatron> <50D38F04.8020307@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <50D38F04.8020307@gmail.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Subash Patel Cc: Olof Johansson , linux-samsung-soc@vger.kernel.org, Kukjin Kim , linux-arm-kernel@lists.infradead.org List-Id: linux-samsung-soc@vger.kernel.org Hi Subash, On Thursday 20 of December 2012 14:19:48 Subash Patel wrote: > I would like to ask a question here. Do we need to have sparse even if > the physical memory is contiguous? All the recent exynos machines come > with physical banks without any holes, and I am thinking why not drop it > and use flat mem instead. With LPAE these sections sizes wont be useful, > and I dont like to keep different section sizes for different > configurations. Any suggestions/opinions are very much helpful to me. Since sparse memory is the only option available on Exynos currently in kernel configuration, I assume there was a reason for it. However I am not an expert in memory management, so please correct me if I am wrong. Best regards, Tomasz Figa From mboxrd@z Thu Jan 1 00:00:00 1970 From: tomasz.figa@gmail.com (Tomasz Figa) Date: Fri, 21 Dec 2012 00:18:39 +0100 Subject: [PATCH] ARM: dts: fix split memory bank for SSDK5440 In-Reply-To: <50D38F04.8020307@gmail.com> References: <1356030217-5472-1-git-send-email-kgene.kim@samsung.com> <1464138.NEt7mMkYJc@flatron> <50D38F04.8020307@gmail.com> Message-ID: <3158118.uctD3XVWRG@flatron> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Subash, On Thursday 20 of December 2012 14:19:48 Subash Patel wrote: > I would like to ask a question here. Do we need to have sparse even if > the physical memory is contiguous? All the recent exynos machines come > with physical banks without any holes, and I am thinking why not drop it > and use flat mem instead. With LPAE these sections sizes wont be useful, > and I dont like to keep different section sizes for different > configurations. Any suggestions/opinions are very much helpful to me. Since sparse memory is the only option available on Exynos currently in kernel configuration, I assume there was a reason for it. However I am not an expert in memory management, so please correct me if I am wrong. Best regards, Tomasz Figa