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path: root/drivers/nvdimm/region_devs.c
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Diffstat (limited to 'drivers/nvdimm/region_devs.c')
-rw-r--r--drivers/nvdimm/region_devs.c83
1 files changed, 77 insertions, 6 deletions
diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c
index b7cb5066d961..b550edf2571f 100644
--- a/drivers/nvdimm/region_devs.c
+++ b/drivers/nvdimm/region_devs.c
@@ -222,7 +222,7 @@ int nd_region_to_nstype(struct nd_region *nd_region)
struct nd_mapping *nd_mapping = &nd_region->mapping[i];
struct nvdimm *nvdimm = nd_mapping->nvdimm;
- if (nvdimm->flags & NDD_ALIASING)
+ if (test_bit(NDD_ALIASING, &nvdimm->flags))
alias++;
}
if (alias)
@@ -255,6 +255,35 @@ static ssize_t size_show(struct device *dev,
}
static DEVICE_ATTR_RO(size);
+static ssize_t deep_flush_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct nd_region *nd_region = to_nd_region(dev);
+
+ /*
+ * NOTE: in the nvdimm_has_flush() error case this attribute is
+ * not visible.
+ */
+ return sprintf(buf, "%d\n", nvdimm_has_flush(nd_region));
+}
+
+static ssize_t deep_flush_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ bool flush;
+ int rc = strtobool(buf, &flush);
+ struct nd_region *nd_region = to_nd_region(dev);
+
+ if (rc)
+ return rc;
+ if (!flush)
+ return -EINVAL;
+ nvdimm_flush(nd_region);
+
+ return len;
+}
+static DEVICE_ATTR_RW(deep_flush);
+
static ssize_t mappings_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -448,6 +477,25 @@ static ssize_t read_only_store(struct device *dev,
}
static DEVICE_ATTR_RW(read_only);
+static ssize_t region_badblocks_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct nd_region *nd_region = to_nd_region(dev);
+
+ return badblocks_show(&nd_region->bb, buf, 0);
+}
+
+static DEVICE_ATTR(badblocks, 0444, region_badblocks_show, NULL);
+
+static ssize_t resource_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct nd_region *nd_region = to_nd_region(dev);
+
+ return sprintf(buf, "%#llx\n", nd_region->ndr_start);
+}
+static DEVICE_ATTR_RO(resource);
+
static struct attribute *nd_region_attributes[] = {
&dev_attr_size.attr,
&dev_attr_nstype.attr,
@@ -455,11 +503,14 @@ static struct attribute *nd_region_attributes[] = {
&dev_attr_btt_seed.attr,
&dev_attr_pfn_seed.attr,
&dev_attr_dax_seed.attr,
+ &dev_attr_deep_flush.attr,
&dev_attr_read_only.attr,
&dev_attr_set_cookie.attr,
&dev_attr_available_size.attr,
&dev_attr_namespace_seed.attr,
&dev_attr_init_namespaces.attr,
+ &dev_attr_badblocks.attr,
+ &dev_attr_resource.attr,
NULL,
};
@@ -476,6 +527,23 @@ static umode_t region_visible(struct kobject *kobj, struct attribute *a, int n)
if (!is_nd_pmem(dev) && a == &dev_attr_dax_seed.attr)
return 0;
+ if (!is_nd_pmem(dev) && a == &dev_attr_badblocks.attr)
+ return 0;
+
+ if (!is_nd_pmem(dev) && a == &dev_attr_resource.attr)
+ return 0;
+
+ if (a == &dev_attr_deep_flush.attr) {
+ int has_flush = nvdimm_has_flush(nd_region);
+
+ if (has_flush == 1)
+ return a->mode;
+ else if (has_flush == 0)
+ return 0444;
+ else
+ return 0;
+ }
+
if (a != &dev_attr_set_cookie.attr
&& a != &dev_attr_available_size.attr)
return a->mode;
@@ -813,7 +881,7 @@ static struct nd_region *nd_region_create(struct nvdimm_bus *nvdimm_bus,
return NULL;
}
- if (nvdimm->flags & NDD_UNARMED)
+ if (test_bit(NDD_UNARMED, &nvdimm->flags))
ro = 1;
}
@@ -968,17 +1036,20 @@ EXPORT_SYMBOL_GPL(nvdimm_flush);
*/
int nvdimm_has_flush(struct nd_region *nd_region)
{
- struct nd_region_data *ndrd = dev_get_drvdata(&nd_region->dev);
int i;
/* no nvdimm == flushing capability unknown */
if (nd_region->ndr_mappings == 0)
return -ENXIO;
- for (i = 0; i < nd_region->ndr_mappings; i++)
- /* flush hints present, flushing required */
- if (ndrd_get_flush_wpq(ndrd, i, 0))
+ for (i = 0; i < nd_region->ndr_mappings; i++) {
+ struct nd_mapping *nd_mapping = &nd_region->mapping[i];
+ struct nvdimm *nvdimm = nd_mapping->nvdimm;
+
+ /* flush hints present / available */
+ if (nvdimm->num_flush)
return 1;
+ }
/*
* The platform defines dimm devices without hints, assume