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Commit a94e3fbe authored by Dan Williams's avatar Dan Williams
Browse files

nfit: add sysfs dimm 'family' and 'dsm_mask' attributes 



Communicate the command format and supported functions to userspace
tooling.

Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent 6634fb06

drivers/acpi/nfit.c

+26 −0
Original line number Diff line number Diff line
@@ -897,6 +897,30 @@ static ssize_t serial_show(struct device *dev, 
}

static DEVICE_ATTR_RO(serial);



static ssize_t family_show(struct device *dev,

		struct device_attribute *attr, char *buf)

{

	struct nvdimm *nvdimm = to_nvdimm(dev);

	struct nfit_mem *nfit_mem = nvdimm_provider_data(nvdimm);



	if (nfit_mem->family < 0)

		return -ENXIO;

	return sprintf(buf, "%d\n", nfit_mem->family);

}

static DEVICE_ATTR_RO(family);



static ssize_t dsm_mask_show(struct device *dev,

		struct device_attribute *attr, char *buf)

{

	struct nvdimm *nvdimm = to_nvdimm(dev);

	struct nfit_mem *nfit_mem = nvdimm_provider_data(nvdimm);



	if (nfit_mem->family < 0)

		return -ENXIO;

	return sprintf(buf, "%#lx\n", nfit_mem->dsm_mask);

}

static DEVICE_ATTR_RO(dsm_mask);



static ssize_t flags_show(struct device *dev,

		struct device_attribute *attr, char *buf)

{
@@ -920,6 +944,8 @@ static struct attribute *acpi_nfit_dimm_attributes[] = { 
	&dev_attr_serial.attr,

	&dev_attr_rev_id.attr,

	&dev_attr_flags.attr,

	&dev_attr_family.attr,

	&dev_attr_dsm_mask.attr,

	NULL,

};