From cebc8161708e357758c407eaa79a8cd66ee68fde Mon Sep 17 00:00:00 2001
From: Ovidiu Panait <ovpanait@gmail.com>
Date: Sun, 15 May 2022 21:40:29 +0300
Subject: [PATCH] event: fix static events for CONFIG_NEEDS_MANUAL_RELOC

Static events do not currently work post-relocation for boards that enable
CONFIG_NEEDS_MANUAL_RELOC. Relocate event handler pointers for all event
spies to fix this.

Tested on Microblaze.

Signed-off-by: Ovidiu Panait <ovpanait@gmail.com>
---
 common/board_r.c |  3 +++
 common/event.c   | 15 +++++++++++++++
 include/event.h  | 10 ++++++++++
 3 files changed, 28 insertions(+)

diff --git a/common/board_r.c b/common/board_r.c
index 22b5deaa8c..4e3cf1f4ec 100644
--- a/common/board_r.c
+++ b/common/board_r.c
@@ -612,6 +612,9 @@ static init_fnc_t init_sequence_r[] = {
 	 */
 #endif
 	initr_reloc_global_data,
+#if CONFIG_IS_ENABLED(NEEDS_MANUAL_RELOC) && CONFIG_IS_ENABLED(EVENT)
+	event_manual_reloc,
+#endif
 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
 	initr_unlock_ram_in_cache,
 #endif
diff --git a/common/event.c b/common/event.c
index 063647447d..af1ed4121d 100644
--- a/common/event.c
+++ b/common/event.c
@@ -17,6 +17,7 @@
 #include <malloc.h>
 #include <asm/global_data.h>
 #include <linux/list.h>
+#include <relocate.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -148,6 +149,20 @@ void event_show_spy_list(void)
 	}
 }
 
+#if CONFIG_IS_ENABLED(NEEDS_MANUAL_RELOC)
+int event_manual_reloc(void)
+{
+	struct evspy_info *spy, *end;
+
+	spy = ll_entry_start(struct evspy_info, evspy_info);
+	end = ll_entry_end(struct evspy_info, evspy_info);
+	for (; spy < end; spy++)
+		MANUAL_RELOC(spy->func);
+
+	return 0;
+}
+#endif
+
 #if CONFIG_IS_ENABLED(EVENT_DYNAMIC)
 static void spy_free(struct event_spy *spy)
 {
diff --git a/include/event.h b/include/event.h
index 7765f07250..c00c4fb68d 100644
--- a/include/event.h
+++ b/include/event.h
@@ -144,6 +144,16 @@ int event_register(const char *id, enum event_t type, event_handler_t func,
 /** event_show_spy_list( - Show a list of event spies */
 void event_show_spy_list(void);
 
+/**
+ * event_manual_reloc() - Relocate event handler pointers
+ *
+ * Relocate event handler pointers for all static event spies. It is called
+ * during the generic board init sequence, after relocation.
+ *
+ * Return: 0 if OK
+ */
+int event_manual_reloc(void);
+
 /**
  * event_notify() - notify spies about an event
  *
-- 
2.39.5