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>

1 files changed, 6 insertions, 2 deletions

diff --git a/Documentation/ABI/testing/sysfs-firmware-acpi b/Documentation/ABI/testing/sysfs-firmware-acpi
index e8ffc70ffe1..4f9ba3c2fca 100644
--- a/Documentation/ABI/testing/sysfs-firmware-acpi
+++ b/Documentation/ABI/testing/sysfs-firmware-acpi
@@ -69,9 +69,13 @@ Description:
                 gpe1F:       0  invalid
                 gpe_all:    1192
                 sci:    1194
+                sci_not:     0  
 
-                sci - The total number of times the ACPI SCI
-                has claimed an interrupt.
+                sci - The number of times the ACPI SCI
+                has been called and claimed an interrupt.
+
+                sci_not - The number of times the ACPI SCI
+                has been called and NOT claimed an interrupt.
 
                 gpe_all - count of SCI caused by GPEs.