On Sat, May 25, 2019 at 01:41:31PM +0800, Lu Baolu wrote: > Some platforms may support ACPI name-space enumerated devices > that are capable of generating DMA requests. Platforms which > support DMA remapping explicitly declares any such DMA-capable > ACPI name-space devices in the platform through ACPI Name-space > Device Declaration (ANDD) structure and enumerate them through > the Device Scope of the appropriate remapping hardware unit. > > Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
Isn't this something that should be handled through the IOMMU API so that it covers other IOMMU types as well? How does this scheme compare to the one implemented in drivers/acpi/arm64/iort.c?
