Re: [PATCH 0/3] Add support for APM X-Gene SoC AHBC IOMMU driver.

[Suman Tripathi <stripathi-qTEPVZfXA3Y@public.gmane.org>]

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Hi Joerg,

Hi Suman,

On Tue, Dec 16, 2014 at 01:31:58AM +0530, Suman Tripathi wrote:
> On Dec 16, 2014 1:25 AM, "Don Dutile" <ddutile-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
>
>     On 12/15/2014 11:55 AM, Suman Tripathi wrote:
>
>         This patch adds the support for the APM X-Gene SoC AHBC IOMMU
driver.
>
>         Signed-off-by: Suman Tripathi <stripathi-qTEPVZfXA3Y@public.gmane.org>
>         ---
>
>         Suman Tripathi (3):
>            xgene-ahbc-iommu: Add support for APM X-Gene SoC AHBC IOMMU
driver.
>            arm64: dts: Add the APM X-Gene AHBC IOMMU DTS node.
>            Documentation: dt-bindings: Add the binding info for APM
X-Gene AHBC
>              IOMMU driver.
>
>           .../devicetree/bindings/iommu/xgene,ahbc-iommu.txt |  17 ++
>           arch/arm64/boot/dts/apm-storm.dtsi                 |   5 +
>           drivers/iommu/Kconfig                              |  10 +
>           drivers/iommu/Makefile                             |   1 +
>           drivers/iommu/xgene-ahbc-iommu.c                   | 336
>         +++++++++++++++++++++
>           5 files changed, 369 insertions(+)
>           create mode 100644 Documentation/devicetree/bindings/iommu/
>         xgene,ahbc-iommu.txt
>           create mode 100644 drivers/iommu/xgene-ahbc-iommu.c
What are the differences between the X-Gene IOMMU and the ARM-SMMU?
[suman] : AHBC is IP from XGene for performing 32-bi to 64 bit and vice
versa with AHBC peripherals. ARM-SMMU is IP from ARM which performs
translations of different peripherals other than AHBC .

Thanks,
with regards,
suman

On Tue, Dec 16, 2014 at 1:57 AM, Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org> wrote:
>
> Hi Suman,
>
> On Tue, Dec 16, 2014 at 01:31:58AM +0530, Suman Tripathi wrote:
> > On Dec 16, 2014 1:25 AM, "Don Dutile" <ddutile-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
> >
> >     On 12/15/2014 11:55 AM, Suman Tripathi wrote:
> >
> >         This patch adds the support for the APM X-Gene SoC AHBC IOMMU
> driver.
> >
> >         Signed-off-by: Suman Tripathi <stripathi-qTEPVZfXA3Y@public.gmane.org>
> >         ---
> >
> >         Suman Tripathi (3):
> >            xgene-ahbc-iommu: Add support for APM X-Gene SoC AHBC IOMMU
> driver.
> >            arm64: dts: Add the APM X-Gene AHBC IOMMU DTS node.
> >            Documentation: dt-bindings: Add the binding info for APM
> X-Gene AHBC
> >              IOMMU driver.
> >
> >           .../devicetree/bindings/iommu/xgene,ahbc-iommu.txt |  17 ++
> >           arch/arm64/boot/dts/apm-storm.dtsi                 |   5 +
> >           drivers/iommu/Kconfig                              |  10 +
> >           drivers/iommu/Makefile                             |   1 +
> >           drivers/iommu/xgene-ahbc-iommu.c                   | 336
> >         +++++++++++++++++++++
> >           5 files changed, 369 insertions(+)
> >           create mode 100644 Documentation/devicetree/bindings/iommu/
> >         xgene,ahbc-iommu.txt
> >           create mode 100644 drivers/iommu/xgene-ahbc-iommu.c
>
> What are the differences between the X-Gene IOMMU and the ARM-SMMU?
>
>
>         Joerg
>
>

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