From: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Date: Wed, 29 Jan 2025 12:56:32 +0000 (+0100)
Subject: accel/ivpu: Update last_busy in IRQ handler
X-Git-Tag: block-6.15-20250403~41^2~20^2~77
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=b8c00323ae65e1bbee9f87a1e66592b589f53b50;p=linux-block.git

accel/ivpu: Update last_busy in IRQ handler

Call pm_runtime_mark_last_busy() in top half of IRQ handler to prevent
device from being runtime suspended before bottom half is executed on
a workqueue.

Reviewed-by: Karol Wachowski <karol.wachowski@intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250129125636.1047413-3-jacek.lawrynowicz@linux.intel.com
---

diff --git a/drivers/accel/ivpu/ivpu_hw.c b/drivers/accel/ivpu/ivpu_hw.c
index 8099ab047bfe..4199f0bbb435 100644
--- a/drivers/accel/ivpu/ivpu_hw.c
+++ b/drivers/accel/ivpu/ivpu_hw.c
@@ -10,6 +10,7 @@
 
 #include <linux/dmi.h>
 #include <linux/fault-inject.h>
+#include <linux/pm_runtime.h>
 
 #ifdef CONFIG_FAULT_INJECTION
 DECLARE_FAULT_ATTR(ivpu_hw_failure);
@@ -331,7 +332,9 @@ irqreturn_t ivpu_hw_irq_handler(int irq, void *ptr)
 	/* Re-enable global interrupts to re-trigger MSI for pending interrupts */
 	ivpu_hw_btrs_global_int_enable(vdev);
 
-	if (ip_handled || btrs_handled)
-		return IRQ_HANDLED;
-	return IRQ_NONE;
+	if (!ip_handled && !btrs_handled)
+		return IRQ_NONE;
+
+	pm_runtime_mark_last_busy(vdev->drm.dev);
+	return IRQ_HANDLED;
 }