On Thu, Aug 03, 2017 at 09:35:45PM +0800, Hanjun Guo wrote: > 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? Yes on both counts, Ganapatrao sent me offline a fixed-up patch that I will send upstream with the two changes you requested. Thanks for checking anyway. Lorenzo > > 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 -- 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
