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authorJerry Hoemann <jerry.hoemann@hpe.com>2017-06-30 20:41:28 -0700
committerDan Williams <dan.j.williams@intel.com>2017-07-01 08:49:59 -0700
commit41f95db7b999774fc70b5905c77436d019a910eb (patch)
tree0968ee32f2e9fa7cc3f2debcacc24b7f15fbee71 /drivers/acpi/nfit
parent7db5bb33add5afe6c64e00516b0c928bfc937466 (diff)
acpi, nfit: Show bus_dsm_mask in sysfs
Display bus_dsm_mask in sysfs as /sys/bus/nd/devices/ndbusX/nfit/dsm_mask. Signed-off-by: Jerry Hoemann <jerry.hoemann@hpe.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/acpi/nfit')
-rw-r--r--drivers/acpi/nfit/core.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index b7d7cc4fd2d0..4f6939b51e90 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -929,6 +929,17 @@ static int nfit_mem_init(struct acpi_nfit_desc *acpi_desc)
return 0;
}
+static ssize_t bus_dsm_mask_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct nvdimm_bus *nvdimm_bus = to_nvdimm_bus(dev);
+ struct nvdimm_bus_descriptor *nd_desc = to_nd_desc(nvdimm_bus);
+
+ return sprintf(buf, "%#lx\n", nd_desc->bus_dsm_mask);
+}
+static struct device_attribute dev_attr_bus_dsm_mask =
+ __ATTR(dsm_mask, 0444, bus_dsm_mask_show, NULL);
+
static ssize_t revision_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -1065,6 +1076,7 @@ static struct attribute *acpi_nfit_attributes[] = {
&dev_attr_revision.attr,
&dev_attr_scrub.attr,
&dev_attr_hw_error_scrub.attr,
+ &dev_attr_bus_dsm_mask.attr,
NULL,
};