From: "ext Kanigeri, Hari" <h-kanigeri2@xxxxxx> Subject: RE: [RFC][PATCH 2/3] ARM:OMAP4 iommu:add omap4 support in iommu Date: Tue, 28 Jul 2009 17:42:21 +0200 > Hi Hiroshi, > > > > > This "omap iommu" driver is used in OMAP4 IPC and its interface is a > > character device node. IOW, the client of this device will be an > > userland process and kernel won't know if it uses or not, but kernel > > just provides "/dev/iommu?" for userland. So I don't think that we > > have to care about the dependency of the existance of clients, at > > least, for a moment. > > > > > > The first patch set that I sent is to provide support in IOMMU for OMAP4 just like how it is done in OMAP3 today. The define "CONFIG_MPU_TESLA_IOMMU" is used for now because in the first phase we are planning to use DSP-Bridge to communicate with Tesla (until we move the new user-land IPC to replace DSP-Bridge for OMAP4). > IMHO, let's go ahead with these changes and any changes to support > IOMMU from user-land we can address them in next set of patches. Got it. Let's go for it;) I'll queue them up if you send the updated ones. -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
