Add code to parse proximity domain in SMMUv3 IORT table to
set numa node mapping for smmuv3 devices.
Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@xxxxxxxxxx>
---
drivers/acpi/arm64/iort.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index bba2b59..b4f328f 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 smmv3 device
+ */
+static void __init iort_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;
@@ -1002,6 +1019,9 @@ static int __init iort_add_smmu_platform_device(struct acpi_iort_node *node)
if (!pdev)
return -ENOMEM;
+ if (node->type == ACPI_IORT_NODE_SMMU_V3)
+ iort_set_proximity(node, &pdev->dev);
+
count = ops->iommu_count_resources(node);
r = kcalloc(count, sizeof(*r), GFP_KERNEL);
--
1.8.1.4
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