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Re: [PATCH v7 01/16] drivers: acpi: add FWNODE_ACPI_STATIC fwnode type

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On Wed, Nov 9, 2016 at 3:19 PM, Lorenzo Pieralisi
<lorenzo.pieralisi@arm.com> wrote:
> On systems booting with a device tree, every struct device is associated
> with a struct device_node, that provides its DT firmware representation.
> The device node can be used in generic kernel contexts (eg IRQ
> translation, IOMMU streamid mapping), to retrieve the properties
> associated with the device and carry out kernel operations accordingly.
> Owing to the 1:1 relationship between the device and its device_node,
> the device_node can also be used as a look-up token for the device (eg
> looking up a device through its device_node), to retrieve the device in
> kernel paths where the device_node is available.
>
> On systems booting with ACPI, the same abstraction provided by
> the device_node is required to provide look-up functionality.
>
> The struct acpi_device, that represents firmware objects in the
> ACPI namespace already includes a struct fwnode_handle of
> type FWNODE_ACPI as their member; the same abstraction is missing
> though for devices that are instantiated out of static ACPI tables
> entries (eg ARM SMMU devices).
>
> Add a new fwnode_handle type to associate devices created out
> of static ACPI table entries to the respective firmware components
> and create a simple ACPI core layer interface to dynamically allocate
> and free the corresponding firmware nodes so that kernel subsystems
> can use it to instantiate the nodes and associate them with the
> respective devices.
>
> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
> Tested-by: Hanjun Guo <hanjun.guo@linaro.org>
> Tested-by: Tomasz Nowicki <tn@semihalf.com>
> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Thanks!

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[PATCH v7 00/16] ACPI IORT ARM SMMU support Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-11-09 15:20 +0100
  [PATCH v7 01/16] drivers: acpi: add FWNODE_ACPI_STATIC fwnode type Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-11-09 15:20 +0100
    Re: [PATCH v7 01/16] drivers: acpi: add FWNODE_ACPI_STATIC fwnode type "Rafael J. Wysocki" <rafael@kernel.org> - 2016-11-10 00:40 +0100
  [PATCH v7 02/16] drivers: acpi: iort: introduce linker section for IORT entries probing Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-11-09 15:20 +0100
  [PATCH v7 16/16] drivers: acpi: iort: introduce iort_iommu_configure Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-11-09 15:20 +0100
  [PATCH v7 11/16] drivers: iommu: arm-smmu-v3: add IORT configuration Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-11-09 15:20 +0100
  [PATCH v7 08/16] drivers: acpi: iort: add node match function Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-11-09 15:20 +0100
  [PATCH v7 13/16] drivers: iommu: arm-smmu: add IORT configuration Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-11-09 15:20 +0100
  [PATCH v7 05/16] drivers: iommu: arm-smmu: convert struct device of_node to fwnode usage Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-11-09 15:30 +0100
    Re: [PATCH v7 05/16] drivers: iommu: arm-smmu: convert struct device  of_node to fwnode usage Robin Murphy <robin.murphy@arm.com> - 2016-11-09 15:50 +0100
  [PATCH v7 03/16] drivers: acpi: iort: add support for IOMMU fwnode registration Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-11-09 15:30 +0100
  [PATCH v7 15/16] drivers: acpi: iort: add single mapping function Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-11-09 15:30 +0100
  [PATCH v7 14/16] drivers: acpi: iort: replace rid map type with type mask Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-11-09 15:30 +0100
  [PATCH v7 06/16] drivers: iommu: arm-smmu-v3: convert struct device of_node to fwnode usage Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-11-09 15:30 +0100
    Re: [PATCH v7 06/16] drivers: iommu: arm-smmu-v3: convert struct  device of_node to fwnode usage Robin Murphy <robin.murphy@arm.com> - 2016-11-09 15:50 +0100
  [PATCH v7 12/16] drivers: iommu: arm-smmu: split probe functions into DT/generic portions Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-11-09 15:30 +0100
  [PATCH v7 10/16] drivers: iommu: arm-smmu-v3: split probe functions into DT/generic portions Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-11-09 15:30 +0100
  [PATCH v7 09/16] drivers: acpi: iort: add support for ARM SMMU platform devices creation Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-11-09 15:30 +0100
  [PATCH v7 07/16] drivers: acpi: implement acpi_dma_configure Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-11-09 15:30 +0100
    Re: [PATCH v7 07/16] drivers: acpi: implement acpi_dma_configure Robin Murphy <robin.murphy@arm.com> - 2016-11-09 16:50 +0100
  Re: [PATCH v7 00/16] ACPI IORT ARM SMMU support "Rafael J. Wysocki" <rafael@kernel.org> - 2016-11-10 00:40 +0100
    Re: [PATCH v7 00/16] ACPI IORT ARM SMMU support Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2016-11-10 12:00 +0100
  Re: [PATCH v7 00/16] ACPI IORT ARM SMMU support Hanjun Guo <hanjun.guo@linaro.org> - 2016-11-11 13:50 +0100

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