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Date: Tue, 06 May 2014 13:44:38 +1000 From: Benjamin Herrenschmidt <benh@...nel.crashing.org> To: Bjorn Helgaas <bhelgaas@...gle.com> Cc: Arnd Bergmann <arnd@...db.de>, linux-arm <linux-arm-kernel@...ts.infradead.org>, "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>, Grygorii Strashko <grygorii.strashko@...com>, Russell King <linux@....linux.org.uk>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Linus Walleij <linus.walleij@...aro.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Chris Metcalf <cmetcalf@...era.com>, Grant Likely <grant.likely@...aro.org>, Rob Herring <robh+dt@...nel.org>, Santosh Shilimkar <santosh.shilimkar@...com>, Catalin Marinas <catalin.marinas@....com>, Olof Johansson <olof@...om.net> Subject: Re: [PATCH v3 4/7] of: configure the platform device dma parameters On Mon, 2014-05-05 at 16:28 -0600, Bjorn Helgaas wrote: > I still wonder whether arm, powerpc, and tile (and I just noticed > microblaze also has a similar dma_direct_map_page()) could all be > handled by attaching devices to a generic trivial IOMMU driver > parameterized with the appropriate constant offset. On powerpc, the offset is not constant, it can be per-device Cheers, Ben. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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