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-rw-r--r--drivers/platform/x86/intel_telemetry_debugfs.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/platform/x86/intel_telemetry_debugfs.c b/drivers/platform/x86/intel_telemetry_debugfs.c
index b8be058a8754..cd21df982abd 100644
--- a/drivers/platform/x86/intel_telemetry_debugfs.c
+++ b/drivers/platform/x86/intel_telemetry_debugfs.c
@@ -710,6 +710,24 @@ static const struct file_operations telem_socstate_ops = {
.release = single_release,
};
+static int telem_s0ix_res_get(void *data, u64 *val)
+{
+ u64 s0ix_total_res;
+ int ret;
+
+ ret = intel_pmc_s0ix_counter_read(&s0ix_total_res);
+ if (ret) {
+ pr_err("Failed to read S0ix residency");
+ return ret;
+ }
+
+ *val = s0ix_total_res;
+
+ return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(telem_s0ix_fops, telem_s0ix_res_get, NULL, "%llu\n");
+
static int telem_pss_trc_verb_show(struct seq_file *s, void *unused)
{
u32 verbosity;
@@ -987,6 +1005,14 @@ static int __init telemetry_debugfs_init(void)
goto out;
}
+ f = debugfs_create_file("s0ix_residency_usec", S_IFREG | S_IRUGO,
+ debugfs_conf->telemetry_dbg_dir,
+ NULL, &telem_s0ix_fops);
+ if (!f) {
+ pr_err("s0ix_residency_usec debugfs register failed\n");
+ goto out;
+ }
+
f = debugfs_create_file("pss_trace_verbosity", S_IFREG | S_IRUGO,
debugfs_conf->telemetry_dbg_dir, NULL,
&telem_pss_trc_verb_ops);