1 files changed, 46 insertions, 0 deletions

diff --git a/arch/xtensa/include/asm/asmmacro.h b/arch/xtensa/include/asm/asmmacro.h
index 8308a9c3abb2..71a7e846bc1f 100644
--- a/arch/xtensa/include/asm/asmmacro.h
+++ b/arch/xtensa/include/asm/asmmacro.h
@@ -191,4 +191,50 @@
 #endif
         .endm
 
+#define XTENSA_STACK_ALIGNMENT          16
+
+#if defined(__XTENSA_WINDOWED_ABI__)
+#define XTENSA_FRAME_SIZE_RESERVE       16
+#define XTENSA_SPILL_STACK_RESERVE      32
+
+#define abi_entry(frame_size) \
+        entry sp, (XTENSA_FRAME_SIZE_RESERVE + \
+                   (((frame_size) + XTENSA_STACK_ALIGNMENT - 1) & \
+                    -XTENSA_STACK_ALIGNMENT))
+#define abi_entry_default abi_entry(0)
+
+#define abi_ret(frame_size) retw
+#define abi_ret_default retw
+
+#elif defined(__XTENSA_CALL0_ABI__)
+
+#define XTENSA_SPILL_STACK_RESERVE      0
+
+#define abi_entry(frame_size) __abi_entry (frame_size)
+
+        .macro  __abi_entry frame_size
+        .ifgt \frame_size
+        addi sp, sp, -(((\frame_size) + XTENSA_STACK_ALIGNMENT - 1) & \
+                       -XTENSA_STACK_ALIGNMENT)
+        .endif
+        .endm
+
+#define abi_entry_default
+
+#define abi_ret(frame_size) __abi_ret (frame_size)
+
+        .macro  __abi_ret frame_size
+        .ifgt \frame_size
+        addi sp, sp, (((\frame_size) + XTENSA_STACK_ALIGNMENT - 1) & \
+                      -XTENSA_STACK_ALIGNMENT)
+        .endif
+        ret
+        .endm
+
+#define abi_ret_default ret
+
+#else
+#error Unsupported Xtensa ABI
+#endif
+
 #endif /* _XTENSA_ASMMACRO_H */