On Thu, Jun 01, 2017 at 07:35:37PM +0530, Ganapatrao Kulkarni wrote:
> ARM IORT specification has provision to define Proximity domain
> in SMMUv3 IORT table. Adding required code to parse Proximity domain of
> SMMUv3 IORT table. Parsed Proximity domain is used to set numa_node
> of SMMUv3 platform devices.
>
> Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@xxxxxxxxxx>
> ---
> drivers/iommu/arm-smmu-v3.c | 6 ++++++
> include/acpi/actbl2.h | 4 ++++
> 2 files changed, 10 insertions(+)
>
> diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
> index 69d8506..98c2319 100644
> --- a/drivers/iommu/arm-smmu-v3.c
> +++ b/drivers/iommu/arm-smmu-v3.c
> @@ -2667,6 +2667,12 @@ static int arm_smmu_device_acpi_probe(struct platform_device *pdev,
> if (iort_smmu->flags & ACPI_IORT_SMMU_V3_COHACC_OVERRIDE)
> smmu->features |= ARM_SMMU_FEAT_COHERENCY;
>
> + /* set numa proximity domain for smmv3 device */
> + if (iort_smmu->flags & ACPI_IORT_SMMU_V3_PXM) {
> + set_dev_node(dev, acpi_map_pxm_to_node(iort_smmu->pxm));
> + dev_info(dev, "on NUMA node %d\n", dev_to_node(dev));
It should be done in acpi/arm64/iort.c at device creation time.
Thanks,
Lorenzo
> + }
> +
> return 0;
> }
> #else
> diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
> index 4b306a6..c16ced8 100644
> --- a/include/acpi/actbl2.h
> +++ b/include/acpi/actbl2.h
> @@ -805,6 +805,9 @@ struct acpi_iort_smmu_v3 {
> u32 pri_gsiv;
> u32 gerr_gsiv;
> u32 sync_gsiv;
> + u8 pxm;
> + u8 reserved1;
> + u16 reserved2;
> };
>
> /* Values for Model field above */
> @@ -817,6 +820,7 @@ struct acpi_iort_smmu_v3 {
>
> #define ACPI_IORT_SMMU_V3_COHACC_OVERRIDE (1)
> #define ACPI_IORT_SMMU_V3_HTTU_OVERRIDE (1<<1)
> +#define ACPI_IORT_SMMU_V3_PXM (1<<3)
>
> /*******************************************************************************
> *
> --
> 1.8.1.4
>
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