Hi Suman, On Tue, Jul 8, 2014 at 7:22 PM, Suman Anna <[email protected]> wrote: > The remoteproc driver core currently relies on iommu_present() on > the bus the device is on, to perform MMU management. However, this > logic doesn't scale for multi-arch, especially for processors that > do not have an IOMMU.
Is there a specific hw/scenario where you need this? Can you please provide more details about it? Ideally we should add them to the commit log as well. > The individual platform implementations are required to set this > flag appropriately. The default setting is to not have an MMU. Let's explicitly set the default please so this would be clear for users reading the code. > Cc: Sjur Brændeland <[email protected]> Sjur is no longer with STE, so no point in cc'ing his old email address. > + /* > + * All existing OMAP IPU and DSP processors do have an MMU, and > + * are expected to use MMU, so this statement suffices. > + * XXX: Replace this logic if and when a need arises. The last XXX comment is always true for any kernel code, so I'd drop it. Thanks, Ohad. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
