From mboxrd@z Thu Jan 1 00:00:00 1970 From: Suman Anna Subject: Re: [PATCH 1/2] remoteproc: use a flag to detect the presence of IOMMU Date: Mon, 4 Aug 2014 10:48:56 -0500 Message-ID: <53DFAB68.6020903@ti.com> References: <1404836521-59637-1-git-send-email-s-anna@ti.com> <1404836521-59637-2-git-send-email-s-anna@ti.com> <53D7C769.6080500@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: Ohad Ben-Cohen Cc: Dave Gerlach , "linux-kernel@vger.kernel.org" , "linux-omap@vger.kernel.org" , linux-arm , Robert Tivy List-Id: linux-omap@vger.kernel.org On 08/04/2014 06:50 AM, Ohad Ben-Cohen wrote: > On Tue, Jul 29, 2014 at 7:10 PM, Suman Anna wrote: >> We are trying to add a remoteproc driver for a small Cortex M3 called >> the WkupM3 used for suspend/resume management on TI AM335/AM437x SoCs. >> This processor does not have an MMU. Same is the case with another >> processor subsystem PRU-ICSS on AM335/AM437x. All these are platform >> devices, and the current iommu_present check will not scale for the same >> kernel image to support OMAP4/OMAP5 and AM335/AM437x. > > That's perfect, thanks. Can you please add this use case description > to the commit log? I kept the current description generic, but sure, I can add this specific usecase examples to the commit log. I will post the revised patches once rc1 is out. regards Suman From mboxrd@z Thu Jan 1 00:00:00 1970 From: s-anna@ti.com (Suman Anna) Date: Mon, 4 Aug 2014 10:48:56 -0500 Subject: [PATCH 1/2] remoteproc: use a flag to detect the presence of IOMMU In-Reply-To: References: <1404836521-59637-1-git-send-email-s-anna@ti.com> <1404836521-59637-2-git-send-email-s-anna@ti.com> <53D7C769.6080500@ti.com> Message-ID: <53DFAB68.6020903@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 08/04/2014 06:50 AM, Ohad Ben-Cohen wrote: > On Tue, Jul 29, 2014 at 7:10 PM, Suman Anna wrote: >> We are trying to add a remoteproc driver for a small Cortex M3 called >> the WkupM3 used for suspend/resume management on TI AM335/AM437x SoCs. >> This processor does not have an MMU. Same is the case with another >> processor subsystem PRU-ICSS on AM335/AM437x. All these are platform >> devices, and the current iommu_present check will not scale for the same >> kernel image to support OMAP4/OMAP5 and AM335/AM437x. > > That's perfect, thanks. Can you please add this use case description > to the commit log? I kept the current description generic, but sure, I can add this specific usecase examples to the commit log. I will post the revised patches once rc1 is out. regards Suman