firmware: arm_sdei: add interrupt binding api

euler inclusion
category: feature
Bugzilla: 5515
CVE: N/A

----------------------------------------

This patch add a interrupt binding api function which returns the binded
event number.
Signed-off-by: NXiongfeng Wang <wangxiongfeng2@huawei.com>
Reviewed-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

drivers/firmware/arm_sdei.c

@@ -190,6 +190,16 @@ int sdei_api_event_context(u32 query, u64 *result)
 }
 NOKPROBE_SYMBOL(sdei_api_event_context);
 
+int sdei_api_event_interrupt_bind(int hwirq)
+{
+	u64 event_number;
+
+	invoke_sdei_fn(SDEI_1_0_FN_SDEI_INTERRUPT_BIND, hwirq, 0, 0, 0, 0,
+			&event_number);
+
+	return (int)event_number;
+}
+
 static int sdei_api_event_get_info(u32 event, u32 info, u64 *result)
 {
 	return invoke_sdei_fn(SDEI_1_0_FN_SDEI_EVENT_GET_INFO, event, info, 0,

include/linux/arm_sdei.h

@@ -38,6 +38,7 @@ int sdei_event_unregister(u32 event_num);
 
 int sdei_event_enable(u32 event_num);
 int sdei_event_disable(u32 event_num);
+int sdei_api_event_interrupt_bind(int hwirq);
 
 #ifdef CONFIG_ARM_SDE_INTERFACE
 /* For use by arch code when CPU hotplug notifiers are not appropriate. */