ACPICA: Global event handler

The global event handler is called whenever a general purpose
or fixed ACPI event occurs.

Also update Linux OSL to collect events counter with
global event handler.

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 17 insertions, 2 deletions

diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index f8588f81048a..61891e75583d 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -438,7 +438,7 @@ static void delete_gpe_attr_array(void)
         return;
 }
 
-void acpi_os_gpe_count(u32 gpe_number)
+static void gpe_count(u32 gpe_number)
 {
         acpi_gpe_count++;
 
@@ -454,7 +454,7 @@ void acpi_os_gpe_count(u32 gpe_number)
         return;
 }
 
-void acpi_os_fixed_event_count(u32 event_number)
+static void fixed_event_count(u32 event_number)
 {
         if (!all_counters)
                 return;
@@ -468,6 +468,16 @@ void acpi_os_fixed_event_count(u32 event_number)
         return;
 }
 
+static void acpi_gbl_event_handler(u32 event_type, acpi_handle device,
+        u32 event_number, void *context)
+{
+        if (event_type == ACPI_EVENT_TYPE_GPE)
+                gpe_count(event_number);
+
+        if (event_type == ACPI_EVENT_TYPE_FIXED)
+                fixed_event_count(event_number);
+}
+
 static int get_status(u32 index, acpi_event_status *status,
                       acpi_handle *handle)
 {
@@ -601,6 +611,7 @@ end:
 
 void acpi_irq_stats_init(void)
 {
+        acpi_status status;
         int i;
 
         if (all_counters)
@@ -619,6 +630,10 @@ void acpi_irq_stats_init(void)
         if (all_counters == NULL)
                 goto fail;
 
+        status = acpi_install_global_event_handler(acpi_gbl_event_handler, NULL);
+        if (ACPI_FAILURE(status))
+                goto fail;
+
         counter_attrs = kzalloc(sizeof(struct kobj_attribute) * (num_counters),
                                 GFP_KERNEL);
         if (counter_attrs == NULL)