pm: disable interrupt after exit from halt

HSD: 15015857053 This commit is to disable core interrupt after exit from halt, which is porting from ISH. We need to keep interrupt disabled until all necessary hardware context restoration is done. Signed-off-by: Roger Wang <[email protected]>
intel · Aug 7, 2024 · b18e5bb · b18e5bb
1 parent 974b9dc
commit b18e5bb
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/bsp_sedi/soc/intel_ish/pm/ish_pm.h b/bsp_sedi/soc/intel_ish/pm/ish_pm.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2023 Intel Corporation
+ * Copyright (c) 2023-2024 Intel Corporation
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -47,7 +47,10 @@ static inline void ish_mia_halt(void)
 {
 	/* make sure interrupts are enabled before halting */
 	__asm__ volatile("sti;\n"
-			 "hlt;");
+			 "hlt;\n"
+			 "nop;\n"
+			 "nop;\n"
+			 "cli;");
 }
 
 /* reset ISH mintue-ia cpu core  */