From db863e7870e9986f2c8e61bb0ae5e0d19b6ede62 Mon Sep 17 00:00:00 2001
From: Max Filippov <jcmvbkbc@gmail.com>
Date: Mon, 7 Aug 2023 13:07:31 +0200
Subject: [PATCH] gcc: xtensa: add data alignment properties to dynconfig

include/
	* xtensa-dynconfig.h (xtensa_config_v4): New struct.
	(XCHAL_DATA_WIDTH, XCHAL_UNALIGNED_LOAD_EXCEPTION)
	(XCHAL_UNALIGNED_STORE_EXCEPTION, XCHAL_UNALIGNED_LOAD_HW)
	(XCHAL_UNALIGNED_STORE_HW, XTENSA_CONFIG_V4_ENTRY_LIST): New
	definitions.
	(XTENSA_CONFIG_INSTANCE_LIST): Add xtensa_config_v4 instance.
	(XTENSA_CONFIG_ENTRY_LIST): Add XTENSA_CONFIG_V4_ENTRY_LIST.
---
 include/xtensa-dynconfig.h | 59 +++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 58 insertions(+), 1 deletion(-)

diff --git a/include/xtensa-dynconfig.h b/include/xtensa-dynconfig.h
index 19e4234..45d54dc 100644
--- a/include/xtensa-dynconfig.h
+++ b/include/xtensa-dynconfig.h
@@ -112,12 +112,22 @@ struct xtensa_config_v3
   int xchal_have_xea3;
 };
 
+struct xtensa_config_v4
+{
+  int xchal_data_width;
+  int xchal_unaligned_load_exception;
+  int xchal_unaligned_store_exception;
+  int xchal_unaligned_load_hw;
+  int xchal_unaligned_store_hw;
+};
+
 extern const void *xtensa_load_config (const char *name,
 				       const void *no_plugin_def,
 				       const void *no_name_def);
 extern const struct xtensa_config_v1 *xtensa_get_config_v1 (void);
 extern const struct xtensa_config_v2 *xtensa_get_config_v2 (void);
 extern const struct xtensa_config_v3 *xtensa_get_config_v3 (void);
+extern const struct xtensa_config_v4 *xtensa_get_config_v4 (void);
 
 #ifdef XTENSA_CONFIG_DEFINITION
 
@@ -205,6 +215,26 @@ extern const struct xtensa_config_v3 *xtensa_get_config_v3 (void);
 #define XCHAL_HAVE_XEA3 0
 #endif
 
+#ifndef XCHAL_DATA_WIDTH
+#define XCHAL_DATA_WIDTH 16
+#endif
+
+#ifndef XCHAL_UNALIGNED_LOAD_EXCEPTION
+#define XCHAL_UNALIGNED_LOAD_EXCEPTION 1
+#endif
+
+#ifndef XCHAL_UNALIGNED_STORE_EXCEPTION
+#define XCHAL_UNALIGNED_STORE_EXCEPTION 1
+#endif
+
+#ifndef XCHAL_UNALIGNED_LOAD_HW
+#define XCHAL_UNALIGNED_LOAD_HW 0
+#endif
+
+#ifndef XCHAL_UNALIGNED_STORE_HW
+#define XCHAL_UNALIGNED_STORE_HW 0
+#endif
+
 #define XTENSA_CONFIG_ENTRY(a) a
 
 #define XTENSA_CONFIG_V1_ENTRY_LIST \
@@ -274,6 +304,13 @@ extern const struct xtensa_config_v3 *xtensa_get_config_v3 (void);
     XTENSA_CONFIG_ENTRY(XCHAL_HAVE_EXCLUSIVE), \
     XTENSA_CONFIG_ENTRY(XCHAL_HAVE_XEA3)
 
+#define XTENSA_CONFIG_V4_ENTRY_LIST \
+    XTENSA_CONFIG_ENTRY(XCHAL_DATA_WIDTH), \
+    XTENSA_CONFIG_ENTRY(XCHAL_UNALIGNED_LOAD_EXCEPTION), \
+    XTENSA_CONFIG_ENTRY(XCHAL_UNALIGNED_STORE_EXCEPTION), \
+    XTENSA_CONFIG_ENTRY(XCHAL_UNALIGNED_LOAD_HW), \
+    XTENSA_CONFIG_ENTRY(XCHAL_UNALIGNED_STORE_HW)
+
 #define XTENSA_CONFIG_INSTANCE_LIST \
 const struct xtensa_config_v1 xtensa_config_v1 = { \
     XTENSA_CONFIG_V1_ENTRY_LIST, \
@@ -283,12 +320,16 @@ const struct xtensa_config_v2 xtensa_config_v2 = { \
 }; \
 const struct xtensa_config_v3 xtensa_config_v3 = { \
     XTENSA_CONFIG_V3_ENTRY_LIST, \
+}; \
+const struct xtensa_config_v4 xtensa_config_v4 = { \
+    XTENSA_CONFIG_V4_ENTRY_LIST, \
 }
 
 #define XTENSA_CONFIG_ENTRY_LIST \
     XTENSA_CONFIG_V1_ENTRY_LIST, \
     XTENSA_CONFIG_V2_ENTRY_LIST, \
-    XTENSA_CONFIG_V3_ENTRY_LIST
+    XTENSA_CONFIG_V3_ENTRY_LIST, \
+    XTENSA_CONFIG_V4_ENTRY_LIST
 
 #else /* XTENSA_CONFIG_DEFINITION */
 
@@ -480,6 +521,22 @@ const struct xtensa_config_v3 xtensa_config_v3 = { \
 #undef XCHAL_HAVE_XEA3
 #define XCHAL_HAVE_XEA3			(xtensa_get_config_v3 ()->xchal_have_xea3)
 
+
+#undef XCHAL_DATA_WIDTH
+#define XCHAL_DATA_WIDTH		(xtensa_get_config_v4 ()->xchal_data_width)
+
+#undef XCHAL_UNALIGNED_LOAD_EXCEPTION
+#define XCHAL_UNALIGNED_LOAD_EXCEPTION	(xtensa_get_config_v4 ()->xchal_unaligned_load_exception)
+
+#undef XCHAL_UNALIGNED_STORE_EXCEPTION
+#define XCHAL_UNALIGNED_STORE_EXCEPTION	(xtensa_get_config_v4 ()->xchal_unaligned_store_exception)
+
+#undef XCHAL_UNALIGNED_LOAD_HW
+#define XCHAL_UNALIGNED_LOAD_HW		(xtensa_get_config_v4 ()->xchal_unaligned_load_hw)
+
+#undef XCHAL_UNALIGNED_STORE_HW
+#define XCHAL_UNALIGNED_STORE_HW	(xtensa_get_config_v4 ()->xchal_unaligned_store_hw)
+
 #endif /* XTENSA_CONFIG_DEFINITION */
 
 #ifdef __cplusplus
-- 
2.7.4