[PATCH v3 4/7] of: configure the platform device dma parameters
From: benh@kernel.crashing.org (Benjamin Herrenschmidt)
Date: 2014-05-06 03:46:13
Also in:
linux-devicetree, lkml
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.