ACPI NFIT table has System Physical Address Range Structure
entries that describe a proximity ID of each range when
ACPI_NFIT_PROXIMITY_VALID is set in the flags.
Change acpi_nfit_register_region() to map a proximity ID to its
node ID, and set it to a new numa_node field of nd_region_desc,
which is then conveyed to nd_region.
nd_region_probe() and nd_btt_probe() set the numa_node of nd_region
to their device object being probed. A namespace device inherits
the numa_node from the parent region device.
Signed-off-by: Toshi Kani <toshi.kani@xxxxxx>
---
drivers/acpi/nfit.c | 6 ++++++
drivers/nvdimm/btt.c | 2 ++
drivers/nvdimm/nd.h | 1 +
drivers/nvdimm/region.c | 1 +
drivers/nvdimm/region_devs.c | 1 +
include/linux/libnvdimm.h | 1 +
6 files changed, 12 insertions(+)
diff --git a/drivers/acpi/nfit.c b/drivers/acpi/nfit.c
index 5731e4a..69dc6e0 100644
--- a/drivers/acpi/nfit.c
+++ b/drivers/acpi/nfit.c
@@ -1255,6 +1255,12 @@ static int acpi_nfit_register_region(struct acpi_nfit_desc *acpi_desc,
ndr_desc->res = &res;
ndr_desc->provider_data = nfit_spa;
ndr_desc->attr_groups = acpi_nfit_region_attribute_groups;
+ if (spa->flags & ACPI_NFIT_PROXIMITY_VALID)
+ ndr_desc->numa_node = acpi_map_pxm_to_online_node(
+ spa->proximity_domain);
+ else
+ ndr_desc->numa_node = NUMA_NO_NODE;
+
list_for_each_entry(nfit_memdev, &acpi_desc->memdevs, list) {
struct acpi_nfit_memory_map *memdev = nfit_memdev->memdev;
struct nd_mapping *nd_mapping;
diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c
index 2d7ce9e..3b3e115 100644
--- a/drivers/nvdimm/btt.c
+++ b/drivers/nvdimm/btt.c
@@ -1369,6 +1369,8 @@ static int nd_btt_probe(struct device *dev)
rc = -ENOMEM;
goto err_btt;
}
+
+ set_dev_node(dev, nd_region->numa_node);
dev_set_drvdata(dev, btt);
return 0;
diff --git a/drivers/nvdimm/nd.h b/drivers/nvdimm/nd.h
index c807379..fefd8f6 100644
--- a/drivers/nvdimm/nd.h
+++ b/drivers/nvdimm/nd.h
@@ -108,6 +108,7 @@ struct nd_region {
u64 ndr_size;
u64 ndr_start;
int id, num_lanes;
+ int numa_node;
void *provider_data;
struct nd_interleave_set *nd_set;
struct nd_mapping mapping[0];
diff --git a/drivers/nvdimm/region.c b/drivers/nvdimm/region.c
index 373eab4..783220e 100644
--- a/drivers/nvdimm/region.c
+++ b/drivers/nvdimm/region.c
@@ -123,6 +123,7 @@ static int nd_region_probe(struct device *dev)
num_ns->active = rc;
num_ns->count = rc + err;
+ set_dev_node(dev, nd_region->numa_node);
dev_set_drvdata(dev, num_ns);
if (err == 0)
diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c
index 86adbd8..352bc80 100644
--- a/drivers/nvdimm/region_devs.c
+++ b/drivers/nvdimm/region_devs.c
@@ -627,6 +627,7 @@ static noinline struct nd_region *nd_region_create(struct nvdimm_bus *nvdimm_bus
nd_region->provider_data = ndr_desc->provider_data;
nd_region->nd_set = ndr_desc->nd_set;
nd_region->num_lanes = ndr_desc->num_lanes;
+ nd_region->numa_node = ndr_desc->numa_node;
ida_init(&nd_region->ns_ida);
dev = &nd_region->dev;
dev_set_name(dev, "region%d", nd_region->id);
diff --git a/include/linux/libnvdimm.h b/include/linux/libnvdimm.h
index 96b9507..5d0c75a 100644
--- a/include/linux/libnvdimm.h
+++ b/include/linux/libnvdimm.h
@@ -78,6 +78,7 @@ struct nd_region_desc {
struct nd_interleave_set *nd_set;
void *provider_data;
int num_lanes;
+ int numa_node;
};
struct nvdimm_bus;
--
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