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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20230926225813.995948-4-srinivas.pandruvada@linux.intel.com>
Date:   Tue, 26 Sep 2023 15:58:11 -0700
From:   Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
To:     daniel.lezcano@...aro.org, rafael@...nel.org, rui.zhang@...el.com
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Subject: [PATCH 3/5] 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 <srinivas.pandruvada@...ux.intel.com>
---
 .../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