thermal: int340x: processor_thermal: Handle power floor interrupts

On thermal device interrupt, if the interrupt is generated for passing
power floor status, call the callback to pass notification to the user
space.

First call proc_thermal_check_power_floor_intr() to check interrupt, if
this callback returns true, wake the IRQ thread to call
proc_thermal_power_floor_intr_callback() to notify user space.

Signed-off-by: Srinivas Pandruvada <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>

Author: spandruvada

drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c

@@ -126,7 +126,8 @@ static void proc_thermal_clear_soc_int_status(struct proc_thermal_device *proc_p
 {
 	u64 status;
 
-	if (!(proc_priv->mmio_feature_mask & PROC_THERMAL_FEATURE_WT_HINT))
+	if (!(proc_priv->mmio_feature_mask &
+	    (PROC_THERMAL_FEATURE_WT_HINT | PROC_THERMAL_FEATURE_POWER_FLOOR)))
 		return;
 
 	status = readq(proc_priv->mmio_base + SOC_WT_RES_INT_STATUS_OFFSET);
@@ -139,6 +140,7 @@ static irqreturn_t proc_thermal_irq_thread_handler(int irq, void *devid)
 	struct proc_thermal_pci *pci_info = devid;
 
 	proc_thermal_wt_intr_callback(pci_info->pdev, pci_info->proc_priv);
+	proc_thermal_power_floor_intr_callback(pci_info->pdev, pci_info->proc_priv);
 	proc_thermal_clear_soc_int_status(pci_info->proc_priv);
 
 	return IRQ_HANDLED;
@@ -158,6 +160,11 @@ static irqreturn_t proc_thermal_irq_handler(int irq, void *devid)
 			ret = IRQ_WAKE_THREAD;
 	}
 
+	if (proc_priv->mmio_feature_mask & PROC_THERMAL_FEATURE_POWER_FLOOR) {
+		if (proc_thermal_check_power_floor_intr(pci_info->proc_priv))
+			ret = IRQ_WAKE_THREAD;
+	}
+
 	/*
 	 * Since now there are two sources of interrupts: one from thermal threshold
 	 * and another from workload hint, add a check if there was really a threshold