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

Communicate the command format and supported functions to userspace
tooling.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
hifive-unleashed-5.1
Dan Williams 2016-04-28 18:18:05 -07:00
parent 6634fb0690
commit a94e3fbe4d
1 changed files with 26 additions and 0 deletions
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26
drivers/acpi/nfit.c
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@ -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,
};