Hi,
On Thu, Jun 08, 2017 at 10:14:19AM +0530, Ganapatrao Kulkarni wrote:
> Add code to parse proximity domain in SMMUv3 IORT table to
> set numa node mapping for smmuv3 devices.
>
> Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulka...@cavium.com>
> ---
> drivers/acpi/arm64/iort.c | 28 ++++++++++++++++++++++++++--
> 1 file changed, 26 insertions(+), 2 deletions(-)
I am happy to take this but I want to know what we shall do with
patch 1 and related ACPICA changes first.
Thanks,
Lorenzo
> diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
> index bba2b59..e804386 100644
> --- a/drivers/acpi/arm64/iort.c
> +++ b/drivers/acpi/arm64/iort.c
> @@ -882,6 +882,23 @@ static bool __init arm_smmu_v3_is_coherent(struct
> acpi_iort_node *node)
> return smmu->flags & ACPI_IORT_SMMU_V3_COHACC_OVERRIDE;
> }
>
> +/*
> + * set numa proximity domain for smmuv3 device
> + */
> +static void __init arm_smmu_v3_set_proximity(struct acpi_iort_node *node,
> + struct device *dev)
> +{
> + struct acpi_iort_smmu_v3 *smmu;
> +
> + smmu = (struct acpi_iort_smmu_v3 *)node->node_data;
> + if (smmu->flags & ACPI_IORT_SMMU_V3_PXM_VALID) {
> + set_dev_node(dev, acpi_map_pxm_to_node(smmu->pxm));
> + pr_info("SMMUV3[%llx] Mapped to Proximity domain %d\n",
> + smmu->base_address,
> + smmu->pxm);
> + }
> +}
> +
> static int __init arm_smmu_count_resources(struct acpi_iort_node *node)
> {
> struct acpi_iort_smmu *smmu;
> @@ -951,20 +968,24 @@ struct iort_iommu_config {
> int (*iommu_count_resources)(struct acpi_iort_node *node);
> void (*iommu_init_resources)(struct resource *res,
> struct acpi_iort_node *node);
> + void (*iommu_set_proximity)(struct acpi_iort_node *node,
> + struct device *dev);
> };
>
> static const struct iort_iommu_config iort_arm_smmu_v3_cfg __initconst = {
> .name = "arm-smmu-v3",
> .iommu_is_coherent = arm_smmu_v3_is_coherent,
> .iommu_count_resources = arm_smmu_v3_count_resources,
> - .iommu_init_resources = arm_smmu_v3_init_resources
> + .iommu_init_resources = arm_smmu_v3_init_resources,
> + .iommu_set_proximity = arm_smmu_v3_set_proximity
> };
>
> static const struct iort_iommu_config iort_arm_smmu_cfg __initconst = {
> .name = "arm-smmu",
> .iommu_is_coherent = arm_smmu_is_coherent,
> .iommu_count_resources = arm_smmu_count_resources,
> - .iommu_init_resources = arm_smmu_init_resources
> + .iommu_init_resources = arm_smmu_init_resources,
> + .iommu_set_proximity = NULL
> };
>
> static __init
> @@ -1002,6 +1023,9 @@ static int __init iort_add_smmu_platform_device(struct
> acpi_iort_node *node)
> if (!pdev)
> return -ENOMEM;
>
> + if (ops->iommu_set_proximity)
> + ops->iommu_set_proximity(node, &pdev->dev);
> +
> count = ops->iommu_count_resources(node);
>
> r = kcalloc(count, sizeof(*r), GFP_KERNEL);
> --
> 1.8.1.4
>
