From 88bea188b85f9cefefbbd56b8a48d0f798409177 Mon Sep 17 00:00:00 2001
From: Len Brown <len.brown@intel.com>
Date: Tue, 21 Apr 2009 00:35:47 -0400
Subject: ACPI: add /sys/firmware/acpi/interrupts/sci_not counter

This counter may prove useful in debugging some
spurious interrupt issues seen in the field.

Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/osl.c    |  4 +++-
 drivers/acpi/system.c | 11 +++++++++--
 2 files changed, 12 insertions(+), 3 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index d59f08ecaf1..d916bea729f 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -353,8 +353,10 @@ static irqreturn_t acpi_irq(int irq, void *dev_id)
 	if (handled) {
 		acpi_irq_handled++;
 		return IRQ_HANDLED;
-	} else
+	} else {
+		acpi_irq_not_handled++;
 		return IRQ_NONE;
+	}
 }
 
 acpi_status
diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c
index da51f05ef8d..0944daec064 100644
--- a/drivers/acpi/system.c
+++ b/drivers/acpi/system.c
@@ -38,6 +38,7 @@ ACPI_MODULE_NAME("system");
 #define ACPI_SYSTEM_DEVICE_NAME		"System"
 
 u32 acpi_irq_handled;
+u32 acpi_irq_not_handled;
 
 /*
  * Make ACPICA version work as module param
@@ -214,8 +215,9 @@ err:
 
 #define COUNT_GPE 0
 #define COUNT_SCI 1	/* acpi_irq_handled */
-#define COUNT_ERROR 2	/* other */
-#define NUM_COUNTERS_EXTRA 3
+#define COUNT_SCI_NOT 2	/* acpi_irq_not_handled */
+#define COUNT_ERROR 3	/* other */
+#define NUM_COUNTERS_EXTRA 4
 
 struct event_counter {
 	u32 count;
@@ -317,6 +319,8 @@ static ssize_t counter_show(struct kobject *kobj,
 
 	all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI].count =
 		acpi_irq_handled;
+	all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI_NOT].count =
+		acpi_irq_not_handled;
 	all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_GPE].count =
 		acpi_gpe_count;
 
@@ -363,6 +367,7 @@ static ssize_t counter_set(struct kobject *kobj,
 			all_counters[i].count = 0;
 		acpi_gpe_count = 0;
 		acpi_irq_handled = 0;
+		acpi_irq_not_handled = 0;
 		goto end;
 	}
 
@@ -456,6 +461,8 @@ void acpi_irq_stats_init(void)
 			sprintf(buffer, "gpe_all");
 		else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI)
 			sprintf(buffer, "sci");
+		else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI_NOT)
+			sprintf(buffer, "sci_not");
 		else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_ERROR)
 			sprintf(buffer, "error");
 		else
-- 
cgit v1.2.3-18-g5258