add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/xtensa/include/asm/asmmacro.h
..
..
@@ -11,7 +11,7 @@
11
11
 #ifndef _XTENSA_ASMMACRO_H
12
12
 #define _XTENSA_ASMMACRO_H
13
13
 
14
-#include <variant/core.h>
14
+#include <asm/core.h>
15
15
 
16
16
 /*
17
17
  * Some little helpers for loops. Use zero-overhead-loops
..
..
@@ -191,4 +191,52 @@
191
191
 #endif
192
192
 	.endm
193
193
 
194
+#define XTENSA_STACK_ALIGNMENT		16
195
+
196
+#if defined(__XTENSA_WINDOWED_ABI__)
197
+#define XTENSA_FRAME_SIZE_RESERVE	16
198
+#define XTENSA_SPILL_STACK_RESERVE	32
199
+
200
+#define abi_entry(frame_size) \
201
+	entry sp, (XTENSA_FRAME_SIZE_RESERVE + \
202
+		   (((frame_size) + XTENSA_STACK_ALIGNMENT - 1) & \
203
+		    -XTENSA_STACK_ALIGNMENT))
204
+#define abi_entry_default abi_entry(0)
205
+
206
+#define abi_ret(frame_size) retw
207
+#define abi_ret_default retw
208
+
209
+#elif defined(__XTENSA_CALL0_ABI__)
210
+
211
+#define XTENSA_SPILL_STACK_RESERVE	0
212
+
213
+#define abi_entry(frame_size) __abi_entry (frame_size)
214
+
215
+	.macro	__abi_entry frame_size
216
+	.ifgt \frame_size
217
+	addi sp, sp, -(((\frame_size) + XTENSA_STACK_ALIGNMENT - 1) & \
218
+		       -XTENSA_STACK_ALIGNMENT)
219
+	.endif
220
+	.endm
221
+
222
+#define abi_entry_default
223
+
224
+#define abi_ret(frame_size) __abi_ret (frame_size)
225
+
226
+	.macro	__abi_ret frame_size
227
+	.ifgt \frame_size
228
+	addi sp, sp, (((\frame_size) + XTENSA_STACK_ALIGNMENT - 1) & \
229
+		      -XTENSA_STACK_ALIGNMENT)
230
+	.endif
231
+	ret
232
+	.endm
233
+
234
+#define abi_ret_default ret
235
+
236
+#else
237
+#error Unsupported Xtensa ABI
238
+#endif
239
+
240
+#define __XTENSA_HANDLER	.section ".exception.text", "ax"
241
+
194
242
 #endif /* _XTENSA_ASMMACRO_H */