1 files changed, 67 insertions, 0 deletions
diff --git a/chip/mt_scp/rv32i_common/ipi_table.c b/chip/mt_scp/rv32i_common/ipi_table.c
new file mode 100644
index 0000000000..8fe3f1e598
--- /dev/null
+++ b/chip/mt_scp/rv32i_common/ipi_table.c
@@ -0,0 +1,67 @@
+/* Copyright 2020 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ * IPI handlers declaration
+ */
+
+#include "common.h"
+#include "ipi_chip.h"
+
+typedef void (*ipi_handler_t)(int32_t id, void *data, uint32_t len);
+
+#ifndef PASS
+#define PASS 1
+#endif
+
+#define ipi_arguments int32_t id, void *data, uint32_t len
+
+#if PASS == 1
+void ipi_handler_undefined(ipi_arguments) { }
+
+const int ipi_wakeup_undefined;
+
+#define table(type, name, x) x
+
+#define ipi_x_func(suffix, args, number)                                       \
+	extern void __attribute__(                                             \
+		(used, weak, alias(STRINGIFY(ipi_##suffix##_undefined))))      \
+		ipi_##number##_##suffix(args);
+
+#define ipi_x_var(suffix, number)                                              \
+	extern int __attribute__(                                              \
+		(weak, alias(STRINGIFY(ipi_##suffix##_undefined))))            \
+		ipi_##number##_##suffix;
+
+#endif /* PASS == 1 */
+
+#if PASS == 2
+
+#undef table
+#undef ipi_x_func
+#undef ipi_x_var
+
+#define table(type, name, x)                                                   \
+	type const name[]                                                      \
+		__attribute__((aligned(4), used, section(".rodata.ipi"))) = {x}
+
+#define ipi_x_var(suffix, number)                                              \
+	[number < IPI_COUNT ? number : -1] = &ipi_##number##_##suffix,
+
+#define ipi_x_func(suffix, args, number) ipi_x_var(suffix, number)
+
+#endif /* PASS == 2 */
+
+/*
+ * Include generated IPI table (by util/gen_ipi_table). The contents originate
+ * from IPI_COUNT definition in board.h
+ */
+#include "ipi_table_gen.inc"
+
+#if PASS == 1
+#undef PASS
+#define PASS 2
+#include "ipi_table.c"
+BUILD_ASSERT(ARRAY_SIZE(ipi_handler_table) == IPI_COUNT);
+BUILD_ASSERT(ARRAY_SIZE(ipi_wakeup_table) == IPI_COUNT);
+#endif