[PATCH 3/5] thermal: int340x: processor_thermal: Handle power floor interrupts

From: Srinivas Pandruvada
Date: Tue Sep 26 2023 - 19:44:04 EST


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 <srinivas.pandruvada@xxxxxxxxxxxxxxx>
---
.../intel/int340x_thermal/processor_thermal_device_pci.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
index e2c7beb91c60..a5accc290a3d 100644
--- a/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
+++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
@@ -127,6 +127,7 @@ 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);

return IRQ_HANDLED;
}
@@ -145,6 +146,11 @@ 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
--
2.41.0