libmetal: add xtensa support

make openamp can run on xtensa dsp Signed-off-by: Guiding Li <liguiding1@xiaomi.com>
OpenAMP · Oct 22, 2021 · 70249cf · 70249cf
1 parent af087df
commit 70249cf
Show file tree

Hide file tree

Showing 3 changed files with 35 additions and 0 deletions.
diff --git a/lib/processor/xtensa/CMakeLists.txt b/lib/processor/xtensa/CMakeLists.txt
@@ -0,0 +1,2 @@
+collect (PROJECT_LIB_HEADERS atomic.h)
+collect (PROJECT_LIB_HEADERS cpu.h)
diff --git a/lib/processor/xtensa/atomic.h b/lib/processor/xtensa/atomic.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2015, Xiaomi Inc. and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/*
+ * @file	xtensa/atomic.h
+ * @brief	Xtensa specific atomic primitives for libmetal.
+ */
+
+#ifndef __METAL_XTENSA_ATOMIC__H__
+#define __METAL_XTENSA_ATOMIC__H__
+
+#endif /* __METAL_XTENSA_ATOMIC__H__ */
diff --git a/lib/processor/xtensa/cpu.h b/lib/processor/xtensa/cpu.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2015, Xiaomi Inc. and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/*
+ * @file	cpu.h
+ * @brief	CPU specific primatives
+ */
+
+#ifndef __METAL_XTENSA_CPU__H__
+#define __METAL_XTENSA_CPU__H__
+
+#define metal_cpu_yield()
+#define __sync_synchronize()
+
+#endif /* __METAL_XTENSA_CPU__H__ */
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,2 @@
		collect (PROJECT_LIB_HEADERS atomic.h)
		collect (PROJECT_LIB_HEADERS cpu.h)