From 41f95db7b999774fc70b5905c77436d019a910eb Mon Sep 17 00:00:00 2001 From: Jerry Hoemann Date: Fri, 30 Jun 2017 20:41:28 -0700 Subject: 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 Signed-off-by: Dan Williams --- drivers/acpi/nfit/core.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers/acpi/nfit') 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, }; -- cgit v1.2.3