diff mbox series

[v2,17/17] drivers/firmware/sdei: Add sdei_event_get_info()

Message ID 20200722095740.28560-18-gshan@redhat.com (mailing list archive)
State New, archived
Headers show
Series Refactor SDEI client driver | expand

Commit Message

Gavin Shan July 22, 2020, 9:57 a.m. UTC 
This adds API sdei_event_get_info(), to be used when virtualized
SDEI is supported to retrieve the information about the specified
event.

Signed-off-by: Gavin Shan <gshan@redhat.com>
---
 drivers/firmware/arm_sdei.c | 13 +++++++++++++
 include/linux/arm_sdei.h    |  2 ++
 2 files changed, 15 insertions(+)
diff mbox series

Patch

diff --git a/drivers/firmware/arm_sdei.c b/drivers/firmware/arm_sdei.c
index 7518d3febf53..cb7f8c6849a1 100644
--- a/drivers/firmware/arm_sdei.c
+++ b/drivers/firmware/arm_sdei.c
@@ -172,6 +172,19 @@  static int sdei_api_event_get_info(u32 event, u32 info, u64 *result)
 			      0, 0, result);
 }
 
+int sdei_event_get_info(u32 event_num, u32 info, u64 *result)
+{
+	int err;
+
+	mutex_lock(&sdei_events_lock);
+
+	err = sdei_api_event_get_info(event_num, info, result);
+
+	mutex_unlock(&sdei_events_lock);
+
+	return err;
+}
+
 static struct sdei_event *sdei_event_create(u32 event_num,
 					    sdei_event_callback *cb,
 					    void *cb_arg)
diff --git a/include/linux/arm_sdei.h b/include/linux/arm_sdei.h
index 7f3ed7e4b680..93e372a1454c 100644
--- a/include/linux/arm_sdei.h
+++ b/include/linux/arm_sdei.h
@@ -63,6 +63,8 @@  struct sdei_event {
 	};
 };
 
+int sdei_event_get_info(u32 event_num, u32 info, u64 *result);
+
 /*
  * Register your callback to claim an event. The event must be described
  * by firmware.