disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/thermal/intel/intel_powerclamp.c
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@@ -57,6 +57,7 @@
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 static unsigned int target_mwait;
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 static struct dentry *debug_dir;
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+static bool poll_pkg_cstate_enable;
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 /* user selected target */
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 static unsigned int set_target_ratio;
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@@ -261,6 +262,9 @@
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 static unsigned int get_compensation(int ratio)
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 {
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 	unsigned int comp = 0;
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+
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+	if (!poll_pkg_cstate_enable)
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+		return 0;
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 	/* we only use compensation if all adjacent ones are good */
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 	if (ratio == 1 &&
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@@ -534,7 +538,8 @@
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 	control_cpu = cpumask_first(cpu_online_mask);
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 	clamping = true;
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-	schedule_delayed_work(&poll_pkg_cstate_work, 0);
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+	if (poll_pkg_cstate_enable)
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+		schedule_delayed_work(&poll_pkg_cstate_work, 0);
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 	/* start one kthread worker per online cpu */
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 	for_each_online_cpu(cpu) {
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@@ -603,11 +608,15 @@
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 static int powerclamp_get_cur_state(struct thermal_cooling_device *cdev,
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 				 unsigned long *state)
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 {
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-	if (true == clamping)
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-		*state = pkg_cstate_ratio_cur;
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-	else
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+	if (clamping) {
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+		if (poll_pkg_cstate_enable)
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+			*state = pkg_cstate_ratio_cur;
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+		else
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+			*state = set_target_ratio;
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+	} else {
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 		/* to save power, do not poll idle ratio while not clamping */
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 		*state = -1; /* indicates invalid state */
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+	}
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 	return 0;
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 }
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@@ -732,6 +741,9 @@
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 		goto exit_unregister;
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 	}
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+	if (topology_max_packages() == 1 && topology_max_die_per_package() == 1)
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+		poll_pkg_cstate_enable = true;
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+
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 	cooling_dev = thermal_cooling_device_register("intel_powerclamp", NULL,
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 						&powerclamp_cooling_ops);
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 	if (IS_ERR(cooling_dev)) {