On 2017/8/3 0:21, Lorenzo Pieralisi wrote: > Patch that I will send upstream below, please check, thanks. > > -- >8 -- > Subject: [PATCH] ACPI/IORT: numa: Add numa node mapping for smmuv3 devices > > ARM IORT specification(rev. C) has added provision to define proximity > domain in SMMUv3 IORT table. Adding required code to parse Proximity > domain and set numa_node of smmv3 platform devices. > > Add code to parse proximity domain in SMMUv3 IORT table to > set numa node mapping for smmuv3 devices. > > Link: http://lkml.kernel.org/r/20170706112017.GA16981@rric.localdomain > Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@xxxxxxxxxx> > [lorenzo.pieralisi@xxxxxxx: updated review comments] > Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx> > --- > drivers/acpi/arm64/iort.c | 29 ++++++++++++++++++++++++++++- > 1 file changed, 28 insertions(+), 1 deletion(-) > > diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c > index a3215ee..35dd803 100644 > --- a/drivers/acpi/arm64/iort.c > +++ b/drivers/acpi/arm64/iort.c > @@ -908,6 +908,27 @@ static bool __init arm_smmu_v3_is_coherent(struct acpi_iort_node *node) > return smmu->flags & ACPI_IORT_SMMU_V3_COHACC_OVERRIDE; > } > > +#if defined(CONFIG_ACPI_NUMA) && defined(ACPI_IORT_SMMU_v3_PXM_VALID) Typo here, s/v3/V3, wit this typo, smmu proximity callback will be set to NULL. > +/* > + * set numa proximity domain for smmuv3 device > + */ > +static void __init arm_smmu_v3_set_proximity(struct device *dev, > + struct acpi_iort_node *node) > +{ > + 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)); > + dev_info(dev, "SMMUV3[%llx] Mapped to Proximity domain %d\n", > + smmu->base_address, > + smmu->pxm); Here I got: [ 5.074246] (null): SMMUV3[a0040000] Mapped to Proximity domain 0 [ 5.074296] (null): SMMUV3[700a0040000] Mapped to Proximity domain 2 [ 5.074319] (null): SMMUV3[c0040000] Mapped to Proximity domain 0 [ 5.074344] (null): SMMUV3[8a0040000] Mapped to Proximity domain 1 [ 5.074368] (null): SMMUV3[600a0040000] Mapped to Proximity domain 2 SMMU is probed via static table (IORT) , so no proper name before it fully probed. Can we just use pr_info here to remove the meaningless (null), or we give the SMMU a proper name? Thanks Hanjun > + } > +} > +#else > +#define arm_smmu_v3_set_proximity NULL > +#endif > + > static int __init arm_smmu_count_resources(struct acpi_iort_node *node) > { > struct acpi_iort_smmu *smmu; > @@ -977,13 +998,16 @@ 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 device *dev, > + struct acpi_iort_node *node); > }; > > 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 = { > @@ -1028,6 +1052,9 @@ 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(&pdev->dev, node); > + > count = ops->iommu_count_resources(node); > > r = kcalloc(count, sizeof(*r), GFP_KERNEL); -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
