Hi Suman, On Thu, Aug 31, 2017 at 08:14:02AM -0500, Suman Anna wrote: > The OMAP IOMMU driver has been enhanced to support allowing > multiple IOMMUs to be programmed by a single client user. This > support is being added mainly to handle the DSP subsystems on > the DRA7xx SoCs, which have two MMUs within the same subsystem. > These MMUs provide translations to a processor core port and > an internal EDMA port. This support allows both the MMUs to > be programmed together, but with each one retaining it's own > internal state objects. The internal EDMA is managed by the > software running on the DSPs, and this design provides on-par > functionality with previous generation OMAP DSPs where the > EDMA and the DSP core shared the same MMU. I didn't get that from the review, so a question here: Do both MMUs show show up in sysfs, means, do you register both of them the the core code? Because I think with the solution implemented here, only a single, combined MMU should be visible to iommu core code and in sysfs. Regards, Joerg -- 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
