* @regs: Parsed register blocks
* @payload_size: Size of space for payload
* (CXL 2.0 8.2.8.4.3 Mailbox Capabilities Register)
+ * @lsa_size: Size of Label Storage Area
+ * (CXL 2.0 8.2.9.5.1.1 Identify Memory Device)
* @mbox_mutex: Mutex to synchronize mailbox access.
* @firmware_version: Firmware version for the memory device.
* @enabled_cmds: Hardware commands found enabled in CEL.
struct cxl_regs regs;
size_t payload_size;
+ size_t lsa_size;
struct mutex mbox_mutex; /* Protects device mailbox and firmware */
char firmware_version[0x10];
unsigned long *enabled_cmds;
}
static DEVICE_ATTR_RO(payload_max);
+static ssize_t label_storage_size_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct cxl_memdev *cxlmd = to_cxl_memdev(dev);
+ struct cxl_mem *cxlm = cxlmd->cxlm;
+
+ return sysfs_emit(buf, "%zu\n", cxlm->lsa_size);
+}
+static DEVICE_ATTR_RO(label_storage_size);
+
static ssize_t ram_size_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
static struct attribute *cxl_memdev_attributes[] = {
&dev_attr_firmware_version.attr,
&dev_attr_payload_max.attr,
+ &dev_attr_label_storage_size.attr,
NULL,
};
cxlm->pmem_range.end =
le64_to_cpu(id.persistent_capacity) * SZ_256M - 1;
+ cxlm->lsa_size = le32_to_cpu(id.lsa_size);
memcpy(cxlm->firmware_version, id.fw_revision, sizeof(id.fw_revision));
return 0;