From a94e3fbe4d53d4e512c4ea88a475e605b8d8dccb Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 28 Apr 2016 18:18:05 -0700 Subject: [PATCH] nfit: add sysfs dimm 'family' and 'dsm_mask' attributes Communicate the command format and supported functions to userspace tooling. Signed-off-by: Dan Williams --- drivers/acpi/nfit.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/drivers/acpi/nfit.c b/drivers/acpi/nfit.c index ad4fc869fbb7..bf2d7a20d9d7 100644 --- a/drivers/acpi/nfit.c +++ b/drivers/acpi/nfit.c @@ -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, }; -- 2.20.1