[PATCH 09/10] sysfs debug

[Michael J. Ruhl]

Signed-off-by: Michael J. Ruhl <michael.j.ruhl at intel.com>
---
 drivers/platform/x86/intel/pmt/crashlog.c | 31 +++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/drivers/platform/x86/intel/pmt/crashlog.c b/drivers/platform/x86/intel/pmt/crashlog.c
index 7291c93d71df..985f2c685841 100644
--- a/drivers/platform/x86/intel/pmt/crashlog.c
+++ b/drivers/platform/x86/intel/pmt/crashlog.c
@@ -469,6 +469,34 @@ trigger_store(struct device *dev, struct device_attribute *attr,
 }
 static DEVICE_ATTR_RW(trigger);
 
+#define DEBUG_REGISTER_INFO
+#ifdef DEBUG_REGISTER_INFO
+static ssize_t
+status_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct crashlog_entry *crashlog = dev_get_drvdata(dev);
+	u32 status = readl(crashlog->entry.disc_table + crashlog->info->status.offset);
+	u32 control = readl(crashlog->entry.disc_table + crashlog->info->control.offset);
+	int len = 0;
+
+	len += sysfs_emit_at(buf, len, "clear_support: 0x%08x\n", status & crashlog->info->status.clear_supported);
+	len += sysfs_emit_at(buf, len, "rearmed: 0x%08x\n", status & crashlog->info->status.rearmed);
+	len += sysfs_emit_at(buf, len, "error: 0x%08x\n", status & crashlog->info->status.error);
+	len += sysfs_emit_at(buf, len, "consumed: 0x%08x\n", status & crashlog->info->status.consumed);
+	len += sysfs_emit_at(buf, len, "disable: 0x%08x\n", status & crashlog->info->status.disabled);
+	len += sysfs_emit_at(buf, len, "cleared: 0x%08x\n", status & crashlog->info->status.cleared);
+	len += sysfs_emit_at(buf, len, "in_progress: 0x%08x\n", status & crashlog->info->status.in_progress);
+	len += sysfs_emit_at(buf, len, "complete: 0x%08x\n", status & crashlog->info->status.complete);
+	len += sysfs_emit_at(buf, len, "sts_off: 0x%02x  ctl_off: 0x%02x\n", crashlog->info->status.offset,
+			     crashlog->info->control.offset);
+	len += sysfs_emit_at(buf, len, "status:  0x%08x\n", status);
+	len += sysfs_emit_at(buf, len, "control: 0x%08x\n", control);
+
+	return len;
+}
+static DEVICE_ATTR_RO(status);
+#endif
+
 static struct attribute *pmt_crashlog_attrs[] = {
 	&dev_attr_enable.attr,
 	&dev_attr_trigger.attr,
@@ -482,6 +510,9 @@ static struct attribute *pmt_crashlog_ver2_attrs[] = {
 	&dev_attr_error.attr,
 	&dev_attr_rearm.attr,
 	&dev_attr_trigger.attr,
+#ifdef DEBUG_REGISTER_INFO
+	&dev_attr_status.attr,
+#endif
 	NULL
 };
 
-- 
2.49.0