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libnvdimm: Set numa_node to NVDIMM devices

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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 the nd_region device.

The device core arranges for btt and namespace devices to inherit their
node from their parent region.

Signed-off-by: Toshi Kani <[email protected]>
[djbw: move set_dev_node() from region.c to bus.c]
Signed-off-by: Dan Williams <[email protected]>
This commit is contained in:
Toshi Kani 2015-06-19 12:18:33 -06:00 • committed by Dan Williams
commit 41d7a6d637
6 changed files with 16 additions and 1 deletions
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6
drivers/nvdimm/bus.c
View file

@ -48,6 +48,12 @@ static int to_nd_device_type(struct device *dev)
static int nvdimm_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
{
/*
* Ensure that region devices always have their numa node set as
* early as possible.
*/
if (is_nd_pmem(dev) || is_nd_blk(dev))
set_dev_node(dev, to_nd_region(dev)->numa_node);
return add_uevent_var(env, "MODALIAS=" ND_DEVICE_MODALIAS_FMT,
to_nd_device_type(dev));
}

2
drivers/nvdimm/nd.h
View file

@ -97,7 +97,7 @@ struct nd_region {
u16 ndr_mappings;
u64 ndr_size;
u64 ndr_start;
int id, num_lanes, ro;
int id, num_lanes, ro, numa_node;
void *provider_data;
struct nd_interleave_set *nd_set;
struct nd_percpu_lane __percpu *lane;

1
drivers/nvdimm/region_devs.c
View file

@ -736,6 +736,7 @@ static struct nd_region *nd_region_create(struct nvdimm_bus *nvdimm_bus,
nd_region->nd_set = ndr_desc->nd_set;
nd_region->num_lanes = ndr_desc->num_lanes;
nd_region->ro = ro;
nd_region->numa_node = ndr_desc->numa_node;
ida_init(&nd_region->ns_ida);
ida_init(&nd_region->btt_ida);
dev = &nd_region->dev;