platform/x86/amd/pmf: Add PMF debug facilities

At times, when the mode transitions fail to happen, the current
driver does not give enough debug information on why the transition
failed or the default preset values did not load. Having an on-demand
logs guarded by CONFIG would be helpful in such cases.
Co-developed-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20230510144751.66601-2-Shyam-sundar.S-k@amd.comReviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

drivers/platform/x86/amd/pmf/auto-mode.c

@@ -179,11 +179,34 @@ void amd_pmf_trans_automode(struct amd_pmf_dev *dev, int socket_power, ktime_t t
 			config_store.transition[i].applied = false;
 			update = true;
 		}
+
+#ifdef CONFIG_AMD_PMF_DEBUG
+		dev_dbg(dev->dev, "[AUTO MODE] average_power : %d mW mode: %s\n", avg_power,
+			state_as_str(config_store.current_mode));
+
+		dev_dbg(dev->dev, "[AUTO MODE] time: %lld ms timer: %u ms tc: %u ms\n",
+			time_elapsed_ms, config_store.transition[i].timer,
+			config_store.transition[i].time_constant);
+
+		dev_dbg(dev->dev, "[AUTO MODE] shiftup: %u pt: %u mW pf: %u mW pd: %u mW\n",
+			config_store.transition[i].shifting_up,
+			config_store.transition[i].power_threshold,
+			config_store.mode_set[i].power_floor,
+			config_store.transition[i].power_delta);
+#endif
 	}
 
 	dev_dbg(dev->dev, "[AUTO_MODE] avg power: %u mW mode: %s\n", avg_power,
 		state_as_str(config_store.current_mode));
 
+#ifdef CONFIG_AMD_PMF_DEBUG
+	dev_dbg(dev->dev, "[AUTO MODE] priority1: %u priority2: %u priority3: %u priority4: %u\n",
+		config_store.transition[0].applied,
+		config_store.transition[1].applied,
+		config_store.transition[2].applied,
+		config_store.transition[3].applied);
+#endif
+
 	if (update) {
 		for (j = 0; j < AUTO_TRANSITION_MAX; j++) {
 			/* Apply the mode with highest priority indentified */

drivers/platform/x86/amd/pmf/cnqf.c

@@ -175,6 +175,13 @@ int amd_pmf_trans_cnqf(struct amd_pmf_dev *dev, int socket_power, ktime_t time_l
 		config_store.trans_param[src][i].count++;
 
 		tp = &config_store.trans_param[src][i];
+
+#ifdef CONFIG_AMD_PMF_DEBUG
+		dev_dbg(dev->dev, "avg_power: %u mW total_power: %u mW count: %u timer: %u ms\n",
+			avg_power, config_store.trans_param[src][i].total_power,
+			config_store.trans_param[src][i].count,
+			config_store.trans_param[src][i].timer);
+#endif
 		if (tp->timer >= tp->time_constant && tp->count) {
 			avg_power = tp->total_power / tp->count;
 
@@ -195,6 +202,18 @@ int amd_pmf_trans_cnqf(struct amd_pmf_dev *dev, int socket_power, ktime_t time_l
 	dev_dbg(dev->dev, "[CNQF] Avg power: %u mW socket power: %u mW mode:%s\n",
 		avg_power, socket_power, state_as_str(config_store.current_mode));
 
+#ifdef CONFIG_AMD_PMF_DEBUG
+	dev_dbg(dev->dev, "[CNQF] priority1: %u priority2: %u priority3: %u\n",
+		config_store.trans_param[src][0].priority,
+		config_store.trans_param[src][1].priority,
+		config_store.trans_param[src][2].priority);
+
+	dev_dbg(dev->dev, "[CNQF] priority4: %u priority5: %u priority6: %u\n",
+		config_store.trans_param[src][3].priority,
+		config_store.trans_param[src][4].priority,
+		config_store.trans_param[src][5].priority);
+#endif
+
 	for (j = 0; j < CNQF_TRANSITION_MAX; j++) {
 		/* apply the highest priority */
 		if (config_store.trans_param[src][j].priority) {