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-rw-r--r--arch/powerpc/platforms/pseries/papr_scm.c1
-rw-r--r--drivers/acpi/nfit/core.c8
-rw-r--r--drivers/acpi/numa.c1
-rw-r--r--drivers/dax/bus.c4
-rw-r--r--drivers/dax/bus.h3
-rw-r--r--drivers/dax/dax-private.h4
-rw-r--r--drivers/dax/pmem/core.c4
-rw-r--r--drivers/nvdimm/e820.c1
-rw-r--r--drivers/nvdimm/nd.h2
-rw-r--r--drivers/nvdimm/of_pmem.c1
-rw-r--r--drivers/nvdimm/region_devs.c1
-rw-r--r--include/linux/acpi.h5
-rw-r--r--include/linux/libnvdimm.h1
13 files changed, 30 insertions, 6 deletions
diff --git a/arch/powerpc/platforms/pseries/papr_scm.c b/arch/powerpc/platforms/pseries/papr_scm.c
index 7d6457ab5d34..8806ac822627 100644
--- a/arch/powerpc/platforms/pseries/papr_scm.c
+++ b/arch/powerpc/platforms/pseries/papr_scm.c
@@ -236,6 +236,7 @@ static int papr_scm_nvdimm_init(struct papr_scm_priv *p)
memset(&ndr_desc, 0, sizeof(ndr_desc));
ndr_desc.attr_groups = region_attr_groups;
ndr_desc.numa_node = dev_to_node(&p->pdev->dev);
+ ndr_desc.target_node = ndr_desc.numa_node;
ndr_desc.res = &p->res;
ndr_desc.of_node = p->dn;
ndr_desc.provider_data = p;
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index 011d3db19c80..475899974c70 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -2869,11 +2869,15 @@ 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)
+ if (spa->flags & ACPI_NFIT_PROXIMITY_VALID) {
ndr_desc->numa_node = acpi_map_pxm_to_online_node(
spa->proximity_domain);
- else
+ ndr_desc->target_node = acpi_map_pxm_to_node(
+ spa->proximity_domain);
+ } else {
ndr_desc->numa_node = NUMA_NO_NODE;
+ ndr_desc->target_node = NUMA_NO_NODE;
+ }
/*
* Persistence domain bits are hierarchical, if
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 274699463b4f..b9d86babb13a 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -84,6 +84,7 @@ int acpi_map_pxm_to_node(int pxm)
return node;
}
+EXPORT_SYMBOL(acpi_map_pxm_to_node);
/**
* acpi_map_pxm_to_online_node - Map proximity ID to online node
diff --git a/drivers/dax/bus.c b/drivers/dax/bus.c
index 568168500217..c620ad52d7e5 100644
--- a/drivers/dax/bus.c
+++ b/drivers/dax/bus.c
@@ -214,7 +214,7 @@ static void dax_region_unregister(void *region)
}
struct dax_region *alloc_dax_region(struct device *parent, int region_id,
- struct resource *res, unsigned int align,
+ struct resource *res, int target_node, unsigned int align,
unsigned long pfn_flags)
{
struct dax_region *dax_region;
@@ -244,6 +244,7 @@ struct dax_region *alloc_dax_region(struct device *parent, int region_id,
dax_region->id = region_id;
dax_region->align = align;
dax_region->dev = parent;
+ dax_region->target_node = target_node;
if (sysfs_create_groups(&parent->kobj, dax_region_attribute_groups)) {
kfree(dax_region);
return NULL;
@@ -348,6 +349,7 @@ struct dev_dax *__devm_create_dev_dax(struct dax_region *dax_region, int id,
dev_dax->dax_dev = dax_dev;
dev_dax->region = dax_region;
+ dev_dax->target_node = dax_region->target_node;
kref_get(&dax_region->kref);
inode = dax_inode(dax_dev);
diff --git a/drivers/dax/bus.h b/drivers/dax/bus.h
index ce977552ffb5..8619e3299943 100644
--- a/drivers/dax/bus.h
+++ b/drivers/dax/bus.h
@@ -10,7 +10,8 @@ struct dax_device;
struct dax_region;
void dax_region_put(struct dax_region *dax_region);
struct dax_region *alloc_dax_region(struct device *parent, int region_id,
- struct resource *res, unsigned int align, unsigned long flags);
+ struct resource *res, int target_node, unsigned int align,
+ unsigned long flags);
enum dev_dax_subsys {
DEV_DAX_BUS,
diff --git a/drivers/dax/dax-private.h b/drivers/dax/dax-private.h
index a82ce48f5884..a45612148ca0 100644
--- a/drivers/dax/dax-private.h
+++ b/drivers/dax/dax-private.h
@@ -26,6 +26,7 @@ void dax_bus_exit(void);
/**
* struct dax_region - mapping infrastructure for dax devices
* @id: kernel-wide unique region for a memory range
+ * @target_node: effective numa node if this memory range is onlined
* @kref: to pin while other agents have a need to do lookups
* @dev: parent device backing this region
* @align: allocation and mapping alignment for child dax devices
@@ -34,6 +35,7 @@ void dax_bus_exit(void);
*/
struct dax_region {
int id;
+ int target_node;
struct kref kref;
struct device *dev;
unsigned int align;
@@ -46,6 +48,7 @@ struct dax_region {
* data while the device is activated in the driver.
* @region - parent region
* @dax_dev - core dax functionality
+ * @target_node: effective numa node if dev_dax memory range is onlined
* @dev - device core
* @pgmap - pgmap for memmap setup / lifetime (driver owned)
* @ref: pgmap reference count (driver owned)
@@ -54,6 +57,7 @@ struct dax_region {
struct dev_dax {
struct dax_region *region;
struct dax_device *dax_dev;
+ int target_node;
struct device dev;
struct dev_pagemap pgmap;
struct percpu_ref ref;
diff --git a/drivers/dax/pmem/core.c b/drivers/dax/pmem/core.c
index bdcff1b14e95..f71019ce0647 100644
--- a/drivers/dax/pmem/core.c
+++ b/drivers/dax/pmem/core.c
@@ -20,6 +20,7 @@ struct dev_dax *__dax_pmem_probe(struct device *dev, enum dev_dax_subsys subsys)
struct nd_namespace_common *ndns;
struct nd_dax *nd_dax = to_nd_dax(dev);
struct nd_pfn *nd_pfn = &nd_dax->nd_pfn;
+ struct nd_region *nd_region = to_nd_region(dev->parent);
ndns = nvdimm_namespace_common_probe(dev);
if (IS_ERR(ndns))
@@ -52,7 +53,8 @@ struct dev_dax *__dax_pmem_probe(struct device *dev, enum dev_dax_subsys subsys)
memcpy(&res, &pgmap.res, sizeof(res));
res.start += offset;
dax_region = alloc_dax_region(dev, region_id, &res,
- le32_to_cpu(pfn_sb->align), PFN_DEV|PFN_MAP);
+ nd_region->target_node, le32_to_cpu(pfn_sb->align),
+ PFN_DEV|PFN_MAP);
if (!dax_region)
return ERR_PTR(-ENOMEM);
diff --git a/drivers/nvdimm/e820.c b/drivers/nvdimm/e820.c
index 521eaf53a52a..36be9b619187 100644
--- a/drivers/nvdimm/e820.c
+++ b/drivers/nvdimm/e820.c
@@ -47,6 +47,7 @@ static int e820_register_one(struct resource *res, void *data)
ndr_desc.res = res;
ndr_desc.attr_groups = e820_pmem_region_attribute_groups;
ndr_desc.numa_node = e820_range_to_nid(res->start);
+ ndr_desc.target_node = ndr_desc.numa_node;
set_bit(ND_REGION_PAGEMAP, &ndr_desc.flags);
if (!nvdimm_pmem_region_create(nvdimm_bus, &ndr_desc))
return -ENXIO;
diff --git a/drivers/nvdimm/nd.h b/drivers/nvdimm/nd.h
index cfde992684e7..0b3d7595b3cb 100644
--- a/drivers/nvdimm/nd.h
+++ b/drivers/nvdimm/nd.h
@@ -153,7 +153,7 @@ struct nd_region {
u16 ndr_mappings;
u64 ndr_size;
u64 ndr_start;
- int id, num_lanes, ro, numa_node;
+ int id, num_lanes, ro, numa_node, target_node;
void *provider_data;
struct kernfs_node *bb_state;
struct badblocks bb;
diff --git a/drivers/nvdimm/of_pmem.c b/drivers/nvdimm/of_pmem.c
index 0a701837dfc0..ecaaa27438e2 100644
--- a/drivers/nvdimm/of_pmem.c
+++ b/drivers/nvdimm/of_pmem.c
@@ -68,6 +68,7 @@ static int of_pmem_region_probe(struct platform_device *pdev)
memset(&ndr_desc, 0, sizeof(ndr_desc));
ndr_desc.attr_groups = region_attr_groups;
ndr_desc.numa_node = dev_to_node(&pdev->dev);
+ ndr_desc.target_node = ndr_desc.numa_node;
ndr_desc.res = &pdev->resource[i];
ndr_desc.of_node = np;
set_bit(ND_REGION_PAGEMAP, &ndr_desc.flags);
diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c
index e2818f94f292..caf2f3129ccd 100644
--- a/drivers/nvdimm/region_devs.c
+++ b/drivers/nvdimm/region_devs.c
@@ -1065,6 +1065,7 @@ static struct nd_region *nd_region_create(struct nvdimm_bus *nvdimm_bus,
nd_region->flags = ndr_desc->flags;
nd_region->ro = ro;
nd_region->numa_node = ndr_desc->numa_node;
+ nd_region->target_node = ndr_desc->target_node;
ida_init(&nd_region->ns_ida);
ida_init(&nd_region->btt_ida);
ida_init(&nd_region->pfn_ida);
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 87715f20b69a..eddf2736e5a6 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -400,12 +400,17 @@ extern bool acpi_osi_is_win8(void);
#ifdef CONFIG_ACPI_NUMA
int acpi_map_pxm_to_online_node(int pxm);
+int acpi_map_pxm_to_node(int pxm);
int acpi_get_node(acpi_handle handle);
#else
static inline int acpi_map_pxm_to_online_node(int pxm)
{
return 0;
}
+static inline int acpi_map_pxm_to_node(int pxm)
+{
+ return 0;
+}
static inline int acpi_get_node(acpi_handle handle)
{
return 0;
diff --git a/include/linux/libnvdimm.h b/include/linux/libnvdimm.h
index 5440f11b0907..56bc545ad3b2 100644
--- a/include/linux/libnvdimm.h
+++ b/include/linux/libnvdimm.h
@@ -128,6 +128,7 @@ struct nd_region_desc {
void *provider_data;
int num_lanes;
int numa_node;
+ int target_node;
unsigned long flags;
struct device_node *of_node;
};
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