[PATCH v3 2/2] acpi/iort: numa: Add numa node mapping for smmuv3 devices
From: guohanjun@huawei.com (Hanjun Guo)
Date: 2017-07-22 03:24:24
Also in:
linux-acpi, linux-iommu, lkml
Hi Ganapat, On 2017/6/8 12:44, Ganapatrao Kulkarni wrote:
quoted hunk ↗ jump to hunk
Add code to parse proximity domain in SMMUv3 IORT table to set numa node mapping for smmuv3 devices. Signed-off-by: Ganapatrao Kulkarni <redacted> --- drivers/acpi/arm64/iort.c | 28 ++++++++++++++++++++++++++-- 1 file changed, 26 insertions(+), 2 deletions(-)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));
^^ Will have compile error in !CONFIG_NUMA, I think we need to introduce a stub function in acpi_numa.h. Thanks Hanjun