Messages in this thread | | | Subject | Re: [PATCH v9 16/16] drivers: acpi: iort: introduce iort_iommu_configure | From | Hanjun Guo <> | Date | Wed, 30 Nov 2016 11:26:38 +0800 |
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On 2016/11/21 18:01, Lorenzo Pieralisi wrote: > DT based systems have a generic kernel API to configure IOMMUs > for devices (ie of_iommu_configure()). > > On ARM based ACPI systems, the of_iommu_configure() equivalent can > be implemented atop ACPI IORT kernel API, with the corresponding > functions to map device identifiers to IOMMUs and retrieve the > corresponding IOMMU operations necessary for DMA operations set-up. > > By relying on the iommu_fwspec generic kernel infrastructure, > implement the IORT based IOMMU configuration for ARM ACPI systems > and hook it up in the ACPI kernel layer that implements DMA > configuration for a device. > > Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> > Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> [ACPI core] > Reviewed-by: Tomasz Nowicki <tn@semihalf.com> > Tested-by: Hanjun Guo <hanjun.guo@linaro.org> > Tested-by: Tomasz Nowicki <tn@semihalf.com> > Cc: Hanjun Guo <hanjun.guo@linaro.org>
Acked-by: Hanjun Guo <hanjun.guo@linaro.org>
Thanks Hanjun
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